1
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Zhu C, Jing B, Lin T, Li X, Zhang M, Zhou Y, Yu J, Hu Z. Phosphorylation of sugar transporter TST2 by protein kinase CPK27 enhances drought tolerance in tomato. PLANT PHYSIOLOGY 2024; 195:1005-1024. [PMID: 38431528 DOI: 10.1093/plphys/kiae124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 01/17/2024] [Accepted: 02/01/2024] [Indexed: 03/05/2024]
Abstract
Drought is a major environmental stress threatening plant growth and productivity. Calcium-dependent protein kinases (CPKs) are plant-specific Ca2+ sensors with multifaceted roles in signaling drought responses. Nonetheless, the mechanisms underpinning how CPKs transmit downstream drought signaling remain unresolved. Through genetic investigations, our study unveiled that knocking out CPK27 reduced drought tolerance in tomato (Solanum lycopersicum) plants and impaired abscisic acid (ABA)-orchestrated plant response to drought stress. Proteomics and phosphoproteomics revealed that CPK27-dependent drought-induced proteins were highly associated with the sugar metabolism pathway, which was further verified by reduced soluble sugar content in the cpk27 mutant under drought conditions. Using protein-protein interaction assays and phosphorylation assessments, we demonstrated that CPK27 directly interacted with and phosphorylated tonoplast sugar transporter 2 (TST2), promoting intercellular soluble sugar accumulation during drought stress. Furthermore, Ca2+ and ABA enhanced CPK27-mediated interaction and phosphorylation of TST2, thus revealing a role of TST2 in tomato plant drought tolerance. These findings extend the toolbox of potential interventions for enhancing plant drought stress tolerance and provide a target to improve drought tolerance by manipulating CPK27-mediated soluble sugar accumulation for rendering drought tolerance in a changing climate.
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Affiliation(s)
- Changan Zhu
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
| | - Beiyu Jing
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
| | - Teng Lin
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
| | - Xinyan Li
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
| | - Min Zhang
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
| | - Yanhong Zhou
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
- Hainan Institute, Zhejiang University, Yazhou Bay Science and Technology City, Sanya 572025, China
| | - Jingquan Yu
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
- Hainan Institute, Zhejiang University, Yazhou Bay Science and Technology City, Sanya 572025, China
| | - Zhangjian Hu
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
- Hainan Institute, Zhejiang University, Yazhou Bay Science and Technology City, Sanya 572025, China
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2
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Wu K, Liang X, Zhang X, Yang G, Wang H, Xia Y, Ishfaq S, Ji H, Qi Y, Guo W. Metabolomics analysis reveals enhanced salt tolerance in maize through exogenous Valine-Threonine-Isoleucine-Aspartic acid application. FRONTIERS IN PLANT SCIENCE 2024; 15:1374142. [PMID: 38828222 PMCID: PMC11140139 DOI: 10.3389/fpls.2024.1374142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 04/25/2024] [Indexed: 06/05/2024]
Abstract
Salt stress is a well-known abiotic constraint that hampers crop productivity, affecting more than 424 million hectares of topsoil worldwide. Applying plant growth regulators externally has proven effective in enhancing crop resilience to salt stress. Previous metabolomics studies revealed an accumulation of Valine-Threonine-Isoleucine-Aspartic acid (VTID) in salt-stressed maize seedlings, suggesting its potential to assist maize adaptation to salt stress. To explore the effectiveness of VTID in enhancing salt tolerance in maize, 10 nM VTID was applied to salt-stressed maize seedlings. The results showed a remarkable 152.29% increase in plant height and a 122.40% increase in fresh weight compared to salt-stressed seedlings. Moreover, the addition of VTID enhanced the activity of antioxidant enzymes, specifically superoxide dismutase (SOD) and catalase (CAT), while reducing the level of malondialdehyde (MDA), a marker of oxidative stress. Additionally, VTID supplementation resulted in a significant increase in osmoregulatory substances such as proline. Metabolomic analysis revealed substantial changes in the metabolite profile of maize seedlings when treated with VTID during salt stress. Differential metabolites (DMs) analysis revealed that the identified DMs primarily belonged to lipids and lipid-like molecules. The receiver operating characteristic curve and linear regression analysis determined a correlation between isodolichantoside and the height of maize seedlings under salt-stress conditions. In conclusion, these findings validate that VTID effectively regulates tolerance in maize seedlings and offers valuable insights into the potential of short peptides for mitigating salt stress.
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Affiliation(s)
- Kaihua Wu
- North Minzu University, Ningxia Key Laboratory for the Development and Application of Microbial Resources in Extreme Environments, Yinchuan, China
| | - Xiaoyan Liang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing, China
- Gembloux Agro-Bio Tech, Liege University, Laboratory of Integrated and Urban Plant Pathology, Gembloux, Belgium
| | - Xiu Zhang
- North Minzu University, Ningxia Key Laboratory for the Development and Application of Microbial Resources in Extreme Environments, Yinchuan, China
| | - Guoping Yang
- North Minzu University, Ningxia Key Laboratory for the Development and Application of Microbial Resources in Extreme Environments, Yinchuan, China
| | - Huaxiao Wang
- North Minzu University, Ningxia Key Laboratory for the Development and Application of Microbial Resources in Extreme Environments, Yinchuan, China
| | - Yining Xia
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Shumila Ishfaq
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Hongfei Ji
- North Minzu University, Ningxia Key Laboratory for the Development and Application of Microbial Resources in Extreme Environments, Yinchuan, China
| | - Yuxi Qi
- North Minzu University, Ningxia Key Laboratory for the Development and Application of Microbial Resources in Extreme Environments, Yinchuan, China
| | - Wei Guo
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing, China
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3
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Kim SH, Lee SH, Park TK, Tian Y, Yu K, Lee BH, Bai MY, Cho SJ, Kim TW. Comparative analysis of BZR1/BES1 family transcription factors in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 117:747-765. [PMID: 37926922 DOI: 10.1111/tpj.16527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/26/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023]
Abstract
Brassinazole Resistant 1 (BZR1) and bri1 EMS Suppressor 1 (BES1) are key transcription factors that mediate brassinosteroid (BR)-responsive gene expression in Arabidopsis. The BZR1/BES1 family is composed of BZR1, BES1, and four BES1/BZR1 homologs (BEH1-BEH4). However, little is known about whether BEHs are regulated by BR signaling in the same way as BZR1 and BES1. We comparatively analyzed the functional characteristics of six BZR1/BES1 family members and their regulatory mechanisms in BR signaling using genetic and biochemical analyses. We also compared their subcellular localizations regulated by the phosphorylation status, interaction with GSK3-like kinases, and heterodimeric combination. We found that all BZR1/BES1 family members restored the phenotypic defects of bri1-5 by their overexpression. Unexpectedly, BEH2-overexpressing plants showed the most distinct phenotype with enhanced BR responses. RNA-Seq analysis indicated that overexpression of both BZR1 and BEH2 regulates BR-responsive gene expression, but BEH2 has a much greater proportion of BR-independent gene expression than BZR1. Unlike BZR1 and BES1, the BR-regulated subcellular translocation of the four BEHs was not tightly correlated with their phosphorylation status. Notably, BEH1 and BEH2 are predominantly localized in the nucleus, which induces the nuclear accumulation of other BZR1/BES1 family proteins through heterodimerization. Altogether, our comparative analyses suggest that BEH1 and BEH2 play an important role in the functional interaction between BZR1/BES1 family transcription factors.
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Affiliation(s)
- So-Hee Kim
- Department of Life Science, Hanyang University, Seoul, 04763, Republic of Korea
- Research Institute for Convergence of Basic Science, Hanyang University, Seoul, 04763, Republic of Korea
| | - Se-Hwa Lee
- Department of Life Science, Hanyang University, Seoul, 04763, Republic of Korea
- Research Institute for Convergence of Basic Science, Hanyang University, Seoul, 04763, Republic of Korea
| | - Tae-Ki Park
- Department of Life Science, Hanyang University, Seoul, 04763, Republic of Korea
- Hanyang Institute of Bioscience and Biotechnology, Hanyang University, Seoul, 04763, Republic of Korea
| | - Yanchen Tian
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, 266237, China
| | - Kyoungjae Yu
- Department of Life Science, Sogang University, Seoul, 04107, Republic of Korea
| | - Byeong-Ha Lee
- Department of Life Science, Sogang University, Seoul, 04107, Republic of Korea
| | - Ming-Yi Bai
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, 266237, China
| | - Sung-Jin Cho
- School of Biological Sciences, College of Natural Sciences, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Tae-Wuk Kim
- Department of Life Science, Hanyang University, Seoul, 04763, Republic of Korea
- Research Institute for Convergence of Basic Science, Hanyang University, Seoul, 04763, Republic of Korea
- Hanyang Institute of Bioscience and Biotechnology, Hanyang University, Seoul, 04763, Republic of Korea
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Yueshan J, Sun M, Yansu L, Xiaojie F, Menglu L, Aokun S, Chaoxing H, Yan Y, Jun W, Xianchang Y. Sodium nitrophenolate mediates brassinosteroids signaling to enhance cold tolerance of cucumber seedling. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108317. [PMID: 38171135 DOI: 10.1016/j.plaphy.2023.108317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/12/2023] [Accepted: 12/25/2023] [Indexed: 01/05/2024]
Abstract
Cold stress (CS) significantly limits cucumber yield. However, it remains unclear whether and how sodium nitrophenolate (CSN) regulates plant responses to cold stress. Here, H2O, CSN, 24-epibrassinolide (EBR), and CSN + EBR were sprayed on cucumber seedlings before or after CS, and on control plants. We found that CSN, EBR, or EBR + CSN pre-treatment improved seedling growth under normal conditions (control condition) and cold tolerance under CS conditions. EBR pre-treatment promoted the expression of approximately half of the genes involved in BR synthesis and signaling and CsICE-CsCBF-CsCOR under CS. However, CSN pre-treatment promoted almost all the expression of BR synthesis and signaling genes, and CsICE-CsCBF-CsCOR genes, which showed the highest expression in early CS, remarkably improving the cold tolerance of cucumber. Interestingly, EBR and CSN had a superimposed effect on the expression of BR synthesis and signaling and CsICE-CsCBF-CsCOR genes, which rapidly increased their expression under normal temperature. Spraying EBR after CS accelerated seedling recovery, whereas CSN had the opposite effect. However, spraying CSN combined with EBR accelerated the recovery of CS-injured seedlings and was better than spraying EBR alone. Although CS-injured seedlings were negatively influenced by CSN, pre-treatment with CSN accelerated seedling growth and increased cold tolerance, suggesting that the effect of CSN was related to whether the seedlings were damaged by CS. In conclusion, we firstly found that CSN enhanced cold tolerance by activating BR signaling, contributing to the gene expression of ICE-CBF-COR and that CSN + EBR contributed to cold tolerance and CS-injured seedling recovery in cucumber.
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Affiliation(s)
- Jiang Yueshan
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Mintao Sun
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Li Yansu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Feng Xiaojie
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Li Menglu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shi Aokun
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - He Chaoxing
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yan Yan
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Wang Jun
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yu Xianchang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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5
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Samanta S, Seth CS, Roychoudhury A. The molecular paradigm of reactive oxygen species (ROS) and reactive nitrogen species (RNS) with different phytohormone signaling pathways during drought stress in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108259. [PMID: 38154293 DOI: 10.1016/j.plaphy.2023.108259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/13/2023] [Accepted: 12/03/2023] [Indexed: 12/30/2023]
Abstract
Drought is undoubtedly a major environmental constraint that negatively affects agricultural yield and productivity throughout the globe. Plants are extremely vulnerable to drought which imposes several physiological, biochemical and molecular perturbations. Increased generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in different plant organs is one of the inevitable consequences of drought. ROS and RNS are toxic byproducts of metabolic reactions and poise oxidative stress and nitrosative stress that are detrimental for plants. In spite of toxic effects, these potentially active radicals also play a beneficial role in mediating several signal transduction events that lead to plant acclimation and enhanced survival under harsh environmental conditions. The precise understanding of ROS and RNS signaling and their molecular paradigm with different phytohormones, such as auxin, gibberellin, cytokinin, abscisic acid, ethylene, brassinosteroids, strigolactones, jasmonic acid, salicylic acid and melatonin play a pivotal role for maintaining plant fitness and resilience to counteract drought toxicity. Therefore, the present review provides an overview of integrated systemic signaling between ROS, RNS and phytohormones during drought stress based on past and recent advancements and their influential role in conferring protection against drought-induced damages in different plant species. Indeed, it would not be presumptuous to hope that the detailed knowledge provided in this review will be helpful for designing drought-tolerant crop cultivars in the forthcoming times.
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Affiliation(s)
- Santanu Samanta
- Post Graduate Department of Biotechnology, St. Xavier's College (Autonomous), 30, Mother Teresa Sarani, Kolkata, 700016, West Bengal, India
| | | | - Aryadeep Roychoudhury
- Discipline of Life Sciences, School of Sciences, Indira Gandhi National Open University, Maidan Garhi, New Delhi, 110068, India.
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6
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Liu M, Zhang Y, Pan T, Li Y, Hong Y, Chen W, Yang Y, Zhao G, Shabala S, Yu M. Genome-wide analysis of respiratory burst oxidase homolog gene family in pea ( Pisum sativum L.). FRONTIERS IN PLANT SCIENCE 2023; 14:1321952. [PMID: 38155848 PMCID: PMC10754532 DOI: 10.3389/fpls.2023.1321952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 11/27/2023] [Indexed: 12/30/2023]
Abstract
Plant respiratory burst oxidase homologs (RBOHs) are key enzymes regulating superoxide production, which is important for plant development and responses to biotic and abiotic stresses. This study aimed to characterize the RBOH gene family in pea (Pisum sativum L.). Seven PsRBOH genes were identified in the pea genome and were phylogenetically clustered into five groups. Collinearity analyses of the RBOHs identified four pairs of orthologs between pea and soybean. The gene structure analysis showed that the number of exons ranged from 6 to 16. Amino acid sequence alignment, conserved domain, and conserved motif analyses showed that all seven PsRBOHs had typical features of plant RBOHs. The expression patterns of PsRBOH genes in different tissues provided suggested their roles in plant growth and organ development. In addition, the expression levels of PsRBOH genes under different abiotic stresses were analyzed via reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The results demonstrated that PsRBOH genes exhibited unique stress-response characteristics, which allowed for functional diversity in response to different abiotic stresses. Furthermore, four PsRBOHs had a high probability of localization in the plasma membrane, and PsRBOH6 was localized to the plasma membrane and endoplasmic reticulum. The results of this study provide valuable information for further functional analysis of pea RBOH genes and their role in plant adaptation to climate-driven environmental constraints.
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Affiliation(s)
- Minmin Liu
- International Research Centre for Environmental Membrane Biology and Department of Horticulture, Foshan University, Foshan, China
| | - Yu Zhang
- International Research Centre for Environmental Membrane Biology and Department of Horticulture, Foshan University, Foshan, China
| | - Ting Pan
- International Research Centre for Environmental Membrane Biology and Department of Horticulture, Foshan University, Foshan, China
| | - Yuanyuan Li
- International Research Centre for Environmental Membrane Biology and Department of Horticulture, Foshan University, Foshan, China
| | - Youheng Hong
- International Research Centre for Environmental Membrane Biology and Department of Horticulture, Foshan University, Foshan, China
| | - Wenjie Chen
- International Research Centre for Environmental Membrane Biology and Department of Horticulture, Foshan University, Foshan, China
| | - Yao Yang
- International Research Centre for Environmental Membrane Biology and Department of Horticulture, Foshan University, Foshan, China
| | - Gangjun Zhao
- Guangdong Key Laboratory for New Technology Research of Vegetables, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Sergey Shabala
- International Research Centre for Environmental Membrane Biology and Department of Horticulture, Foshan University, Foshan, China
- School of Biological Science, University of Western Australia, Crawley, WA, Australia
| | - Min Yu
- International Research Centre for Environmental Membrane Biology and Department of Horticulture, Foshan University, Foshan, China
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Fu Y, Li P, Mounkaila Hamani AK, Wan S, Gao Y, Wang X. Effects of Single and Combined Drought and Salinity Stress on the Root Morphological Characteristics and Root Hydraulic Conductivity of Different Winter Wheat Varieties. PLANTS (BASEL, SWITZERLAND) 2023; 12:2694. [PMID: 37514308 PMCID: PMC10383927 DOI: 10.3390/plants12142694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023]
Abstract
Water shortages and crop responses to drought and salt stress are related to the efficient use of water resources and are closely related to food security. In addition, PEG or NaCl stress alone affect the root hydraulic conductivity (Lpr). However, the effects of combined PEG and NaCl stress on Lpr and the differences among wheat varieties are unknown. We investigated the effects of combined PEG and NaCl stress on the root parameters, nitrogen (N) and carbon content, antioxidant enzymes, osmotic adjustment, changes in sodium and potassium, and root hydraulic conductivity of Yannong 1212, Heng 4399, and Xinmai 19. PEG and NaCl stress appreciably decreased the root length (RL), root surface area (RS), root volume (RV), K+ and N content in shoots and roots, and Lpr of the three wheat varieties, while the antioxidant enzyme activity, malondialdehyde (MDA), osmotic adjustment, nonstructural carbon and Na+ content in shoots and roots, etc., remarkably remained increased. Furthermore, the root hydraulic conductivity had the greatest positive association with traits such as RL, RS, and N and K+ content in the shoots of the three wheat varieties. Moreover, the RL/RS directly and actively determined the Lpr, and it had an extremely positive effect on the N content in the shoots of wheat seedlings. Collectively, most of the root characteristics in the wheat seedlings decreased under stress conditions, resulting in a reduction in Lpr. As a result, the ability to transport nutrients-especially N-from the roots to the shoots was affected. Therefore, our study provides a novel insight into the physiological mechanisms of Lpr.
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Affiliation(s)
- Yuanyuan Fu
- Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Xinxiang 453002, China
- College of Agronomy, Tarim University, Alar 843300, China
| | - Penghui Li
- Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Xinxiang 453002, China
| | | | - Sumei Wan
- College of Agronomy, Tarim University, Alar 843300, China
| | - Yang Gao
- Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Xinxiang 453002, China
| | - Xingpeng Wang
- College of Water Conservancy and Architecture Engineering, Tarim University, Alar 843300, China
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Zhou H, Huang J, Willems P, Van Breusegem F, Xie Y. Cysteine thiol-based post-translational modification: What do we know about transcription factors? TRENDS IN PLANT SCIENCE 2023; 28:415-428. [PMID: 36494303 DOI: 10.1016/j.tplants.2022.11.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
Reactive electrophilic species are ubiquitous in plant cells, where they contribute to specific redox-regulated signaling events. Redox signaling is known to modulate gene expression during diverse biological processes, including plant growth, development, and environmental stress responses. Emerging data demonstrates that transcription factors (TFs) are a main target of cysteine thiol-based oxidative post-translational modifications (OxiPTMs), which can alter their transcriptional activity and thereby convey redox information to the nucleus. Here, we review the significant progress that has been made in characterizing cysteine thiol-based OxiPTMs, their biochemical properties, and their functional effects on plant TFs. We discuss the underlying mechanism of redox regulation and its contribution to various physiological processes as well as still outstanding challenges in redox regulation of plant gene expression.
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Affiliation(s)
- Heng Zhou
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jingjing Huang
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Patrick Willems
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, 9052 Ghent, Belgium; Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium; VIB Center for Medical Biotechnology, VIB, 9000 Ghent, Belgium
| | - Frank Van Breusegem
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Yanjie Xie
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
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9
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Zhou M, Li Y, Yan Y, Gao L, He C, Wang J, Yuan Q, Miao L, Li S, Di Q, Yu X, Sun M. Proteome and phosphoproteome analysis of 2,4-epibrassinolide-mediated cold stress response in cucumber seedlings. FRONTIERS IN PLANT SCIENCE 2023; 14:1104036. [PMID: 36895878 PMCID: PMC9989176 DOI: 10.3389/fpls.2023.1104036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
The 2, 4-epibrassinolide (EBR) significantly increased plants cold tolerance. However, mechanisms of EBR in regulating cold tolerance in phosphoproteome and proteome levels have not been reported. The mechanism of EBR regulating cold response in cucumber was studied by multiple omics analysis. In this study, phosphoproteome analysis showed that cucumber responded to cold stress through multi-site serine phosphorylation, while EBR further upregulated single-site phosphorylation for most of cold-responsive phosphoproteins. Association analysis of the proteome and phosphoproteome revealed that EBR reprogrammed proteins in response to cold stress by negatively regulating protein phosphorylation and protein content, and phosphorylation negatively regulated protein content in cucumber. Further functional enrichment analysis of proteome and phosphoproteome showed that cucumber mainly upregulated phosphoproteins related to spliceosome, nucleotide binding and photosynthetic pathways in response to cold stress. However, different from the EBR regulation in omics level, hypergeometric analysis showed that EBR further upregulated 16 cold-up-responsive phosphoproteins participated photosynthetic and nucleotide binding pathways in response to cold stress, suggested their important function in cold tolerance. Analysis of cold-responsive transcription factors (TFs) by correlation between proteome and phosphoproteome showed that cucumber regulated eight class TFs may through protein phosphorylation under cold stress. Further combined with cold-related transcriptome found that cucumber phosphorylated eight class TFs, and mainly through targeting major hormone signal genes by bZIP TFs in response to cold stress, while EBR further increased these bZIP TFs (CsABI5.2 and CsABI5.5) phosphorylation level. In conclusion, the EBR mediated schematic of molecule response mechanisms in cucumber under cold stress was proposed.
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Affiliation(s)
- Mengdi Zhou
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Tablecrops, China Agricultural University, Beijing, China
| | - Yansu Li
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yan Yan
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lihong Gao
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Tablecrops, China Agricultural University, Beijing, China
| | - Chaoxing He
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jun Wang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Quan Yuan
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Li Miao
- College of Horticulture, Zhejiang A & F University, Hangzhou, China
| | - Shuzhen Li
- College of Life Science, Gannan Normal University, Ganzhou, China
| | - Qinghua Di
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xianchang Yu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Mintao Sun
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
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10
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Zhang Y, Xiao Y, Zhang Y, Dong Y, Liu Y, Liu L, Wan S, He J, Yu Y. Accumulation of Galactinol and ABA Is Involved in Exogenous EBR-Induced Drought Tolerance in Tea Plants. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:13391-13403. [PMID: 36218024 DOI: 10.1021/acs.jafc.2c04892] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Drought stress severely limits growth and causes losses in the yield of tea plants. Exogenous application of 24-epibrassinolide (EBR) positively regulates drought responses in various plants. However, whether EBR could contribute to drought resistance in tea plants and the underlying mechanisms has not been investigated. Here, we found that EBR application is beneficial for the drought tolerance of tea plants. The transcriptome results revealed that EBR could contribute to tea plant drought resistance by promoting galactinol and abscisic acid (ABA) biosynthesis gene expression. The content of galactinol was elevated by EBR and EBR-responsive CsDof1.1 positively regulated the expression of the galactinol synthase genes CsGolS2-1 and CsGolS2-2 to contribute to the accumulation of galactinol by directly binding to their promoters. Moreover, exogenous EBR was found to elevate the expression of genes related to ABA signal transduction and stomatal closure regulation, which resulted in the promotion of stomatal closure. In addition, EBR-responsive CsMYC2-2 is involved in ABA accumulation by binding to the promoters CsNCED1 and CsNCED2 to activate their expression. In summary, findings in this study provide knowledge into the transcriptional regulatory mechanism of EBR-induced drought resistance in tea plants.
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Affiliation(s)
- Yongheng Zhang
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yezi Xiao
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yingao Zhang
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yuan Dong
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yingqing Liu
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Lu Liu
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Siqing Wan
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jingyuan He
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Youben Yu
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
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11
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Zhang C, Zhang J, Liu H, Qu X, Wang J, He Q, Zou J, Yang K, Le J. Transcriptomic analysis reveals the role of FOUR LIPS in response to salt stress in rice. PLANT MOLECULAR BIOLOGY 2022; 110:37-52. [PMID: 35583702 DOI: 10.1007/s11103-022-01282-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 04/26/2022] [Indexed: 06/15/2023]
Abstract
An R2R3-MYB transcription factor FOUR LIPS associated with B-type Cyclin-Dependent Kinase 1;1 confers salt tolerance in rice. The Arabidopsis FOUR LIPS (AtFLP), an R2R3 MYB transcription factor, acts as an important stomatal development regulator. Only one orthologue protein of AtFLP, Oryza sativa FLP (OsFLP), was identified in rice. However, the function of OsFLP is largely unknown. In this study, we conducted RNA-seq and ChIP-seq to investigate the potential role of OsFLP in rice. Our results reveal that OsFLP is probably a multiple functional regulator involved in many biological processes in growth development and stress responses in rice. However, we mainly focus on the role of OsFLP in salt stress response. Consistently, phenotypic analysis under salt stress conditions showed that osflp exhibited significant sensitivity to salt stress, while OsFLP over-expression lines displayed obvious salt tolerance. Additionally, Yeast one-hybrid assay and electrophoretic mobility shift assay (EMSA) showed that OsFLP directly bound to the promoter region of Oryza sativa B-type Cyclin-Dependent Kinase 1;1 (OsCDKB1;1), and the expression of OsCDKB1;1 was repressed in osflp. Disturbing the expression of OsCDKB1;1 remarkably enhanced the tolerance to salt stress. Taken together, our findings reveal a crucial function of OsFLP regulating OsCDKB1;1 in salt tolerance and largely extend the knowledge about the role of OsFLP in rice.
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Affiliation(s)
- Chunxia Zhang
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Jie Zhang
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Huichao Liu
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoxiao Qu
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junxue Wang
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Wenbo School, Jinan, 250100, China
| | - Qixiumei He
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junjie Zou
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Kezhen Yang
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Jie Le
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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12
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Yan Y, Mintao S, Si M, Qian F, Yijia W, Qinghua D, Mengdi Z, Chaoxing H, Yansu L, Lihong G, Xianchang Y. Mechanism of CsGPA1 in regulating cold tolerance of cucumber. HORTICULTURE RESEARCH 2022; 9:uhac109. [PMID: 35821703 PMCID: PMC9265480 DOI: 10.1093/hr/uhac109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 04/22/2022] [Indexed: 06/01/2023]
Abstract
G proteins function directly in cold tolerance of plants. However, the framework of the Gα subunit in regulating cold tolerance remains to be explored. Here, we used protein interaction techniques to elucidate cold-related pathways regulated by CsGPA1. Suppression of CsGPA1 decreased the cold tolerance of cucumber. Further protein interaction experiments showed that CsGPA1 interacted with Csa_4G663630.1 located in the cell membrane and nucleus and with CsCOR413PM2 located in the cell membrane. Csa_4G663630.1 was named CsCDL1 due to its 71% protein sequence similarity to AtCDL1, a positive brassinolide signal gene. Suppression of CsGPA1 decreased the expression of most of brassinolide-related genes (including CsCDL1) under cold stress. Principal component and linear regression analyses showed that expressions of CsGPA1 and brassinolide-related genes were positively correlated. Suppression of CsCOR413PM2 also decreased cold tolerance of cucumber. The expression and protein content of CsCOR413PM2 and CsGPA1 in CsGPA1-RNAi and CsCOR413PM2-RNAi lines were determined under cold tolerance. Only CsGPA1 silencing affected the expression and protein content of CsCOR413PM2 during cold stress. Moreover, suppression of CsGPA1 or CsCOR413PM2 decreased Ca 2+ influx at low temperature and then decreased the expression of CsICE-CsCBF. These results indicated that the CsGPA1-CsCOR413PM2-Ca2+ axis regulated the expression of CsICE-CsCBF during cold stress. In conclusion, Our results provide the first framework of CsGPA1 in regulating cold tolerance of cucumber, laying the foundation for further mechanistic studies of cold tolerance for Gα in cucumber.
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Affiliation(s)
- Yan Yan
- The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Haidian District, Zhongguancun South St, Beijing 100081, China
| | - Sun Mintao
- The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Haidian District, Zhongguancun South St, Beijing 100081, China
| | - Ma Si
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| | - Feng Qian
- The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Haidian District, Zhongguancun South St, Beijing 100081, China
| | - Wang Yijia
- The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Haidian District, Zhongguancun South St, Beijing 100081, China
| | - Di Qinghua
- The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Haidian District, Zhongguancun South St, Beijing 100081, China
| | - Zhou Mengdi
- The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Haidian District, Zhongguancun South St, Beijing 100081, China
| | - He Chaoxing
- The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Haidian District, Zhongguancun South St, Beijing 100081, China
| | - Li Yansu
- The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Haidian District, Zhongguancun South St, Beijing 100081, China
| | - Gao Lihong
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| | - Yu Xianchang
- The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Haidian District, Zhongguancun South St, Beijing 100081, China
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13
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Guo B, Yang H, Dai L, Zhao X, Wang LF. Genome-wide identification and response stress expression analysis of the BES1 family in rubber tree ( Hevea brasiliensis Muell. Arg.). PeerJ 2022; 10:e13189. [PMID: 35586131 PMCID: PMC9109691 DOI: 10.7717/peerj.13189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 03/08/2022] [Indexed: 01/12/2023] Open
Abstract
Brassinolide (BR) plays an important role in plant growth, development, and the adaptation adversity process. Moreover, BRI1-EMS-SUPPRESSOR 1 (BES1) genes are crucial transcription factors (TFs) in the BR signaling pathway. To realize the function of HbBES1 family is helpful to improve genetic resources for rubber tree breeding. Based on the rubber tree database, we used bioinformatics to characterize physicochemical properties, gene structure, cis-elements, and expression patterns. These results indicated that there were nine BES1 members in rubber tree, which we named HbBES1-1 to HbBES1-9 and divided into two groups (I and II) based on their genetic relationships. HbBES1 genes in the same group shared similar gene structures and motifs. Cis-acting element analysis showed that the promoter sequences of HbBES1 genes contained many regulator elements that were related to hormone and stress, indicating that HbBES1 genes might be involved in the regulation of hormone and stress signal pathways. Our analysis of tissue specificity revealed that all of the nine HbBES1 members expressed highly in branches. Gene expression profiles under different hormone treatments showed that the HbBES1 gene family was induced to varying degrees under different hormones, HbBES1-3 and HbBES1-9 were extremely induced by ethylene (ETH). These results lay the foundation for further exploration of the molecular mechanism of the BES1 gene family, especially HbBES1-3 and HbBES1-9, regulating plant stress tolerance in rubber tree.
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Affiliation(s)
- Bingbing Guo
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
| | - Hong Yang
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
| | - Longjun Dai
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
| | - Xizhu Zhao
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
| | - Li-feng Wang
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
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14
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Khan A, Khan V, Pandey K, Sopory SK, Sanan-Mishra N. Thermo-Priming Mediated Cellular Networks for Abiotic Stress Management in Plants. FRONTIERS IN PLANT SCIENCE 2022; 13:866409. [PMID: 35646001 PMCID: PMC9136941 DOI: 10.3389/fpls.2022.866409] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/25/2022] [Indexed: 05/05/2023]
Abstract
Plants can adapt to different environmental conditions and can survive even under very harsh conditions. They have developed elaborate networks of receptors and signaling components, which modulate their biochemistry and physiology by regulating the genetic information. Plants also have the abilities to transmit information between their different parts to ensure a holistic response to any adverse environmental challenge. One such phenomenon that has received greater attention in recent years is called stress priming. Any milder exposure to stress is used by plants to prime themselves by modifying various cellular and molecular parameters. These changes seem to stay as memory and prepare the plants to better tolerate subsequent exposure to severe stress. In this review, we have discussed the various ways in which plants can be primed and illustrate the biochemical and molecular changes, including chromatin modification leading to stress memory, with major focus on thermo-priming. Alteration in various hormones and their subsequent role during and after priming under various stress conditions imposed by changing climate conditions are also discussed.
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Affiliation(s)
| | | | | | | | - Neeti Sanan-Mishra
- Plant RNAi Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
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15
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Zhou K, Li Y, Hu L, Zhang J, Yue H, Yang S, Liu Y, Gong X, Ma F. Overexpression of MdASMT9, an N-acetylserotonin methyltransferase gene, increases melatonin biosynthesis and improves water-use efficiency in transgenic apple. TREE PHYSIOLOGY 2022; 42:1114-1126. [PMID: 34865159 DOI: 10.1093/treephys/tpab157] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/17/2021] [Indexed: 06/13/2023]
Abstract
Improving apple water-use efficiency (WUE) is increasingly desirable in the face of global climate change. Melatonin is a pleiotropic molecule that functions in plant development and stress tolerance. In apple, exogenous application of melatonin has been largely investigated, but melatonin biosynthesis and its physiological roles remain elusive. In the plant biosynthetic pathway of melatonin, the last and key step is that N-acetylserotonin methyltransferase (ASMT) converts N-acetylserotonin into melatonin. Here, we identified an apple ASMT gene, MdASMT9, using homology-based cloning and in vitro enzyme assays. Overexpression of MdASMT9 significantly increased melatonin accumulation in transgenic apple lines. Moreover, an enhanced WUE was observed in the MdASMT9-overexpressing apple lines. Under well-watered conditions, this increase in WUE was attributed to an enhancement of photosynthetic rate and stomatal aperture via a reduction in abscisic acid biosynthesis. By contrast, under long-term moderate water deficit conditions, regulations in photoprotective mechanisms, stomatal behavior, osmotic adjustment and antioxidant activity enhanced the WUE in transgenic apple lines. Taken together, our findings shed light on the positive effect of MdASMT9 on improving WUE of apple by modulating melatonin biosynthesis.
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Affiliation(s)
- Kun Zhou
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yangtiansu Li
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lingyu Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jingyun Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hong Yue
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Shulin Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuan Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaoqing Gong
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
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16
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Paes de Melo B, Carpinetti PDA, Fraga OT, Rodrigues-Silva PL, Fioresi VS, de Camargos LF, Ferreira MFDS. Abiotic Stresses in Plants and Their Markers: A Practice View of Plant Stress Responses and Programmed Cell Death Mechanisms. PLANTS (BASEL, SWITZERLAND) 2022; 11:1100. [PMID: 35567101 PMCID: PMC9103730 DOI: 10.3390/plants11091100] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 05/12/2023]
Abstract
Understanding how plants cope with stress and the intricate mechanisms thereby used to adapt and survive environmental imbalances comprise one of the most powerful tools for modern agriculture. Interdisciplinary studies suggest that knowledge in how plants perceive, transduce and respond to abiotic stresses are a meaningful way to design engineered crops since the manipulation of basic characteristics leads to physiological remodeling for plant adaption to different environments. Herein, we discussed the main pathways involved in stress-sensing, signal transduction and plant adaption, highlighting biochemical, physiological and genetic events involved in abiotic stress responses. Finally, we have proposed a list of practice markers for studying plant responses to multiple stresses, highlighting how plant molecular biology, phenotyping and genetic engineering interconnect for creating superior crops.
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Affiliation(s)
- Bruno Paes de Melo
- Trait Development Department, LongPing HighTech, Cravinhos 14140-000, SP, Brazil
| | - Paola de Avelar Carpinetti
- Genetics and Breeding Program, Universidade Federal do Espírito Santo, Alegre 29500-000, ES, Brazil; (P.d.A.C.); (V.S.F.); (M.F.d.S.F.)
| | - Otto Teixeira Fraga
- Applied Biochemistry Program, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil;
| | | | - Vinícius Sartori Fioresi
- Genetics and Breeding Program, Universidade Federal do Espírito Santo, Alegre 29500-000, ES, Brazil; (P.d.A.C.); (V.S.F.); (M.F.d.S.F.)
| | | | - Marcia Flores da Silva Ferreira
- Genetics and Breeding Program, Universidade Federal do Espírito Santo, Alegre 29500-000, ES, Brazil; (P.d.A.C.); (V.S.F.); (M.F.d.S.F.)
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17
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Song X, Wang T, Zhang Y, Yu JQ, Xia XJ. S-Nitrosoglutathione Reductase Contributes to Thermotolerance by Modulating High Temperature-Induced Apoplastic H 2O 2 in Solanum lycopersicum. FRONTIERS IN PLANT SCIENCE 2022; 13:862649. [PMID: 35498691 PMCID: PMC9042256 DOI: 10.3389/fpls.2022.862649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
S-nitrosoglutathione reductase (GSNOR) is considered as a critical regulator of plant stress tolerance for its impacts on protein S-nitrosylation through regulation of the S-nitrosothiol (SNO) level. However, the mechanism of GSNOR-mediated stress tolerance is still obscure. Here, we found that GSNOR activity was induced by high temperature in tomato (Solanum lycopersicum) plants, whereas mRNA level of SlGSNOR1 exhibited little response. Suppressing SlGSNOR1 expression by virus-induced gene silencing (VIGS) increased accumulation of SNO and nitrites under high temperature and reduced thermotolerance. The compromised thermotolerance was associated with less accumulation of abscisic acid (ABA) and salicylic acid (SA), attenuated activation of mitogen-activated protein kinase (MAPK) and reduced expression of heat shock protein. Intriguingly, SlGSNOR1 silencing impaired upregulation of RESPIRATORY BURST OXIDASE HOMOLOG1 (SlRBOH1) and apoplastic H2O2 accumulation in response to high temperature, whereas SlRBOH1 silencing abolished activation of GSNOR and led to a similar decline in thermotolerance as in SlGSNOR1-silenced plants. Importantly, H2O2 treatment recovered the thermotolerance and improved antioxidant capacity in SlGSNOR1-silenced plants. Our results suggest that GSNOR plays a role in regulating the SlRBOH1-dependent apoplastic H2O2 production in response to high temperature, while a balanced interaction between SNO and H2O2 is critical for maintaining the cellular redox homeostasis and thermotolerance.
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Affiliation(s)
- Xuewei Song
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Ting Wang
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Yang Zhang
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Jing-Quan Yu
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
- Key Laboratory of Horticultural Plants Growth, Development and Quality Improvement, Agricultural Ministry of China, Hangzhou, China
| | - Xiao-Jian Xia
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
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18
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Ma S, Zhou X, Jahan MS, Guo S, Tian M, Zhou R, Liu H, Feng B, Shu S. Putrescine regulates stomatal opening of cucumber leaves under salt stress via the H 2O 2-mediated signaling pathway. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 170:87-97. [PMID: 34861587 DOI: 10.1016/j.plaphy.2021.11.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 11/14/2021] [Accepted: 11/15/2021] [Indexed: 05/24/2023]
Abstract
The stomatal aperture is imperative for photosynthesis in higher plants. The function of polyamines (PAs) in stomatal regulation under a stressful environment has not been fully determined. In this study, we demonstrated the mechanism by which putrescine (Put) regulates stomatal changes in cucumber leaves under salt stress. The results showed that foliar application of Put alleviated the decrease of stomatal aperture and photosynthesis caused by salt stress and promoted plant growth. Exogenous Put caused a significant increase in endogenous PAs and hydrogen peroxide (H2O2) levels by 105.43% and 27.97%, respectively, while decreased abscisic acid (ABA) content by 67.68% under salt stress. However, application of inhibitors of aminoguanidine hydrochloride (AG), 1, 8-diaminooctane (1, 8-DO), diphenyleneiodonium chloride (DPI) and salicylhydroxamic acid (SHAM) upregulated the 9-cis-cyclocarotenoid dioxygenase (NCED) gene and downregulated the reduced glutathione synthetase (GSHS) gene. These inhibitors also decreased the stomatal aperture, levels of H2O2 and reduced glutathione (GSH), but increased the ABA content under salt stress and Put treatment conditions. The order of influence is AG > 1, 8-DO > DPI > SHAM. However, Put-induced downregulation of ABA content and upregulation of GSH content under salt stress were effectively blocked by N, N'-dimethylthiourea (DMTU, H2O2 scavenger) and 1-chloro-2,4-dinitrobenzene (CDNB, GSH scavenger) treatments. Taken together, these results suggest that Put induced the formation of H2O2 signaling mediates the degradation of PAs by diamine oxidase (DAO), increasing GSH content and inhibiting the accumulation of ABA in leaves, thereby promoting stomatal opening in salt-stressed cucumber leaves.
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Affiliation(s)
- Siguang Ma
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xinpeng Zhou
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Mohammad Shah Jahan
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shirong Guo
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China; Suqian Academy of Protected Horticulture, Nanjing Agricultural University, Suqian, 223800, China
| | - Mimi Tian
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ranran Zhou
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hongyun Liu
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Bingjie Feng
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Sheng Shu
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China; Suqian Academy of Protected Horticulture, Nanjing Agricultural University, Suqian, 223800, China.
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19
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Zhang Y, Long Y, Liu Y, Yang M, Wang L, Liu X, Zhang Y, Chen Q, Li M, Lin Y, Tang H, Luo Y. MAPK5 and MAPK10 overexpression influences strawberry fruit ripening, antioxidant capacity and resistance to Botrytis cinerea. PLANTA 2021; 255:19. [PMID: 34894292 DOI: 10.1007/s00425-021-03804-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 11/27/2021] [Indexed: 06/14/2023]
Abstract
FaMAPK5 and FaMAPK10 genes were involved in ABA-mediated strawberry fruit ripening and could enhance the antioxidant capacity by increasing non-enzymatic components and enzymatic antioxidants. Mitogen-activated protein kinases (MAPKs) are the key proteins involved in plant stress response by activating an antioxidant defense system, which cooperates with plant hormones. However, the involvement of MAPKs in the regulation of strawberry fruit ripening and resistance is unclear. In this study, two genes, FaMAPK5 and FaMAPK10, were isolated, and their expression pattern and function analysis were conducted. The results showed FaMAPK5 and FaMAPK10 were expressed in all tested tissue/organ types and reached the highest expression level at the white stage during strawberry fruit development and ripening. Transient overexpression of FaMAPK5 and FaMAPK10 increased the fruit anthocyanin, abscisic acid (ABA), total sugar, and glucose contents. ABA and especially hydrogen peroxide (H2O2) treatment induced the production of large amounts of H2O2 and noticeably increased the expression levels of FaMAPK5 and FaMAPK10 in strawberry fruit, while the reduced glutathione (GSH) had the opposite effect. The level of total phenol and activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) significantly increased in FaMAPK5 overexpression fruit, and increased activities of SOD and CAT were observed in FaMAPK10 overexpression fruit. In addition, Botrytis cinerea treatment showed that overexpression of FaMAPK5 conferred retarded disease symptom development and enhanced fruit disease resistance. Our research revealed that FaMAPK5 and FaMAPK10 might participate in ABA-mediated H2O2 signaling in regulating strawberry fruit ripening and resistance.
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Affiliation(s)
- Yunting Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yu Long
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yiting Liu
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Min Yang
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Liangxin Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiaoyang Liu
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yong Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qing Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Mengyao Li
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yuanxiu Lin
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Haoru Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Ya Luo
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China.
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20
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Bekturova A, Oshanova D, Tiwari P, Nurbekova Z, Kurmanbayeva A, Soltabayeva A, Yarmolinsky D, Srivastava S, Turecková V, Strnad M, Sagi M. Adenosine 5' phosphosulfate reductase and sulfite oxidase regulate sulfite-induced water loss in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:6447-6466. [PMID: 34107028 DOI: 10.1093/jxb/erab249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 05/30/2021] [Indexed: 05/22/2023]
Abstract
Chloroplast-localized adenosine-5'-phosphosulphate reductase (APR) generates sulfite and plays a pivotal role in reduction of sulfate to cysteine. The peroxisome-localized sulfite oxidase (SO) oxidizes excess sulfite to sulfate. Arabidopsis wild type, SO RNA-interference (SO Ri) and SO overexpression (SO OE) transgenic lines infiltrated with sulfite showed increased water loss in SO Ri plants, and smaller stomatal apertures in SO OE plants compared with wild-type plants. Sulfite application also limited sulfate and abscisic acid-induced stomatal closure in wild type and SO Ri. The increases in APR activity in response to sulfite infiltration into wild type and SO Ri leaves resulted in an increase in endogenous sulfite, indicating that APR has an important role in sulfite-induced increases in stomatal aperture. Sulfite-induced H2O2 generation by NADPH oxidase led to enhanced APR expression and sulfite production. Suppression of APR by inhibiting NADPH oxidase and glutathione reductase2 (GR2), or mutation in APR2 or GR2, resulted in a decrease in sulfite production and stomatal apertures. The importance of APR and SO and the significance of sulfite concentrations in water loss were further demonstrated during rapid, harsh drought stress in root-detached wild-type, gr2 and SO transgenic plants. Our results demonstrate the role of SO in sulfite homeostasis in relation to water consumption in well-watered plants.
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Affiliation(s)
- Aizat Bekturova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Dinara Oshanova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Poonam Tiwari
- Jacob Blaustein Center for Scientific Cooperation, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Zhadyrassyn Nurbekova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Assylay Kurmanbayeva
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Aigerim Soltabayeva
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Dmitry Yarmolinsky
- Jacob Blaustein Center for Scientific Cooperation, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Sudhakar Srivastava
- Jacob Blaustein Center for Scientific Cooperation, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Veronika Turecková
- Laboratory of Growth Regulators, Palacky University & Institute of Experimental Botany ASCR, Slechtitelu 11, Olomouc, Czech Republic
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Palacky University & Institute of Experimental Botany ASCR, Slechtitelu 11, Olomouc, Czech Republic
| | - Moshe Sagi
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede-Boker Campus, Israel
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21
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Khan R, Ma X, Zhang J, Wu X, Iqbal A, Wu Y, Zhou L, Wang S. Circular drought-hardening confers drought tolerance via modulation of the antioxidant defense system, osmoregulation, and gene expression in tobacco. PHYSIOLOGIA PLANTARUM 2021; 172:1073-1088. [PMID: 33755204 DOI: 10.1111/ppl.13402] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 03/14/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Drought stress hinders the growth and development of crop plants and ultimately its productivity. It is expected that drought stress will be frequent and intense in the future due to drastic changes in the global climate. It is necessary to make crop plants more resilient to drought stress through various techniques; drought-hardening is one of them. Defining various metabolic strategies used by tobacco plants to confer drought tolerance will be important for maintaining plant physiological functions, but studies addressing this topic are limited. This study was designed to elucidate the drought tolerance and adaptation strategies used by tobacco plants via the application of different circular drought-hardening cycles (control: no drought-hardening, T1: one cycle of drought hardening, T2: two cycles of drought-hardening, and T3: three cycles of drought-hardening) to two tobacco varieties namely Honghuadajinyuan (H) and Yun Yan-100 (Y). The results revealed that drought-hardening decreased the fresh and dry biomass of the tobacco plants. The decrease was more pronounced in the T3 treatment for both H (23 and 29%, respectively) and Y (26 and 31%, respectively) under drought stress. The MDA contents, especially in T1 and T2 in both varieties, were statistically similar compared with control under drought stress. Similarly, higher POD, APX, and GR activities were observed, especially in T3, and elevated amounts of AsA and GSH were also observed among the different circular drought-hardening treatments under drought stress. Thus circular drought-hardening mitigated the oxidative damage by increasing the antioxidant enzyme activities and elevated the content of antioxidant substances, a key metabolic strategy under drought stress. Similarly, another important plant metabolic strategy is the osmotic adjustment. Different circular drought-hardening treatments improved the accumulation of proline and soluble sugars contents which contributed to osmoregulation. Finally, at the molecular level, circular drought-hardening improved the transcript levels of antioxidant enzyme-related genes (CAT, APX1, and GR2), proline and polyamines biosynthesis-related genes (P5CS1 and ADC2), and ABA signaling (SnRK2), and transcription factors (AREB1 and WRKY6) in response to drought stress. As a result, circular drought-hardening (T2 and T3 treatments) promoted tolerance to water stress via affecting the anti-oxidative capacity, osmotic adjustment, and regulation of gene expression in tobacco.
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Affiliation(s)
- Rayyan Khan
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Qingdao, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xinghua Ma
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Qingdao, China
| | - Juan Zhang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Qingdao, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaoying Wu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Qingdao, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Anas Iqbal
- Key Laboratory of Crop Cultivation and Farming System, College of Agriculture, Guangxi University, Nanning, China
| | - Yuanhua Wu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Qingdao, China
| | - Lei Zhou
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Qingdao, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shusheng Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Qingdao, China
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22
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Barros Junior UO, Lima MDR, Alsahli AA, Lobato AKS. Unraveling the roles of brassinosteroids in alleviating drought stress in young Eucalyptus urophylla plants: Implications on redox homeostasis and photosynthetic apparatus. PHYSIOLOGIA PLANTARUM 2021; 172:748-761. [PMID: 33247448 DOI: 10.1111/ppl.13291] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/20/2020] [Accepted: 11/24/2020] [Indexed: 05/20/2023]
Abstract
Water deficit is the most limiting abiotic stress to plants because it affects several physiological and biochemical processes. Brassinosteroids, including 24-epibrassinolide (EBR), are steroids that regulate growth and positively act on gas exchange. This research aims to determine whether EBR can attenuate the negative effects of water deficit, revealing possible contributions of this steroid on photosynthetic machinery of young Eucalyptus urophylla plants under water deficit. The experiment had a completely randomized factorial design with two water conditions (control and water deficit) and three levels of EBR (0, 50, and 100 nM EBR). Water deficit caused a decrease in the levels of total chlorophyll and carotenoids, but these photosynthetic pigments increased by 135 and 226%, respectively, in plants sprayed with EBR when compared to the water deficit + 0 nM EBR treatment. Regarding the antioxidant system, 100 nM EBR induced significant increments in superoxide dismutase (42%), catalase (52%), ascorbate peroxidase (147%), and peroxidase (204%). Steroid application in E. urophylla plants exposed to water deficit increased the effective quantum yield of the photosystem II (PSII) photochemistry and electron transport rate. However, interestingly, it decreased the nonphotochemical quenching and relative energy excess at the PSII level, indicating improvements related to PSII efficiency. This research revealed that application of 100 nM EBR attenuated the negative effects caused by water deficit, being explained by the positive repercussions on antioxidant enzyme activities, chloroplastic pigments, PSII efficiency, electron flux, and net photosynthetic rate.
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Affiliation(s)
- Udson O Barros Junior
- Núcleo de Pesquisa Vegetal Básica e Aplicada, Universidade Federal Rural da Amazônia, Paragominas, Pará, Brazil
| | - Michael D R Lima
- Núcleo de Pesquisa Vegetal Básica e Aplicada, Universidade Federal Rural da Amazônia, Paragominas, Pará, Brazil
| | - Abdulaziz A Alsahli
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Allan K S Lobato
- Núcleo de Pesquisa Vegetal Básica e Aplicada, Universidade Federal Rural da Amazônia, Paragominas, Pará, Brazil
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23
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Faizan M, Bhat JA, Noureldeen A, Ahmad P, Yu F. Zinc oxide nanoparticles and 24-epibrassinolide alleviates Cu toxicity in tomato by regulating ROS scavenging, stomatal movement and photosynthesis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 218:112293. [PMID: 33957422 DOI: 10.1016/j.ecoenv.2021.112293] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/29/2021] [Accepted: 04/23/2021] [Indexed: 05/13/2023]
Abstract
Nanoparticles (NPs) have recently emerged as potential agents for plants to ameliorate abiotic stresses by acting as nano-fertilizers. In this regard, the influence of the zinc oxide nanoparticles (ZnO-NPs) on plant responses to copper (Cu) stress has been poorly understood. Hence, the present study was executed to explore the role of ZnO-NPs (foliar) and 24-epibrassinolide (EBL; root dipping) individually or in combined form in the resilience of tomato (Solanum lycopersicum) plant to Cu stress. Tomato seeds were sown to make the nursery; and at 20 days after sowing (DAS) the plantlets were submerged in 10-8 M of EBL solution for 2 h, and subsequently transplanted in the soil-filled earthen pots. Cu concentration (100 mg kg-1) was applied to the soil at 30 DAS, whereas at 35 DAS plants were sprinkled with double distilled water (DDW; control), 50 mg/L of Zinc (Zn) and 50 mg/L of ZnO-NPs; and plant performance were evaluated at 45 DAS. It was evident that Cu-stress reduced photosynthesis (17.3%), stomatal conductance (18.1%), plant height (19.7%), and nitrate reductase (NR) activity (19.2%), but increased malondialdehyde (MDA; 29.4%), superoxide radical (O2-; 22.3%) and hydrogen peroxide (H2O2; 26.2%) content in S. lycopersicum. Moreover, ZnO-NPs and/or EBL implemented via different modes improved photosynthetic activity, stomatal aperture, growth, cell viability and activity of antioxidant enzymes and proline that augmented resilience of tomato plants to Cu stress. These observations depicted that application of ZnO-NPs and EBL could be a useful approach to assist Cu confiscation and stress tolerance against Cu in tomato plants grown in Cu contaminated sites.
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Affiliation(s)
- Mohammad Faizan
- Collaborative Innovation Center of Sustainable Forestry in Southern China, College of Forest Science, Nanjing Forestry University, Nanjing 210037, China
| | - Javaid Akhter Bhat
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China.
| | - Ahmed Noureldeen
- Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Parvaiz Ahmad
- Department of Botany, S.P. College, Srinagar, Jammu and Kashmir, India.
| | - Fangyuan Yu
- Collaborative Innovation Center of Sustainable Forestry in Southern China, College of Forest Science, Nanjing Forestry University, Nanjing 210037, China.
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24
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Kour J, Kohli SK, Khanna K, Bakshi P, Sharma P, Singh AD, Ibrahim M, Devi K, Sharma N, Ohri P, Skalicky M, Brestic M, Bhardwaj R, Landi M, Sharma A. Brassinosteroid Signaling, Crosstalk and, Physiological Functions in Plants Under Heavy Metal Stress. FRONTIERS IN PLANT SCIENCE 2021; 12:608061. [PMID: 33841453 PMCID: PMC8024700 DOI: 10.3389/fpls.2021.608061] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 01/27/2021] [Indexed: 05/05/2023]
Abstract
Brassinosteroids (BRs) are group of plant steroidal hormones that modulate developmental processes and also have pivotal role in stress management. Biosynthesis of BRs takes place through established early C-6 and late C-6 oxidation pathways and the C-22 hydroxylation pathway triggered by activation of the DWF4 gene that acts on multiple intermediates. BRs are recognized at the cell surface by the receptor kinases, BRI1 and BAK1, which relay signals to the nucleus through a phosphorylation cascade involving phosphorylation of BSU1 protein and proteasomal degradation of BIN2 proteins. Inactivation of BIN2 allows BES1/BZR1 to enter the nucleus and regulate the expression of target genes. In the whole cascade of signal recognition, transduction and regulation of target genes, BRs crosstalk with other phytohormones that play significant roles. In the current era, plants are continuously exposed to abiotic stresses and heavy metal stress is one of the major stresses. The present study reveals the mechanism of these events from biosynthesis, transport and crosstalk through receptor kinases and transcriptional networks under heavy metal stress.
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Affiliation(s)
- Jaspreet Kour
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Sukhmeen Kaur Kohli
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Kanika Khanna
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Palak Bakshi
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Pooja Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Arun Dev Singh
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Mohd Ibrahim
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Kamini Devi
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Neerja Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Puja Ohri
- Department of Zoology, Guru Nanak Dev University, Amritsar, India
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Czech University of Life Sciences Prague, Prague, Czechia
| | - Marian Brestic
- Department of Botany and Plant Physiology, Czech University of Life Sciences Prague, Prague, Czechia
- Department of Plant Physiology, Slovak University of Agriculture, Nitra, Slovakia
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | - Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
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25
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Devireddy AR, Zandalinas SI, Fichman Y, Mittler R. Integration of reactive oxygen species and hormone signaling during abiotic stress. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 105:459-476. [PMID: 33015917 DOI: 10.1111/tpj.15010] [Citation(s) in RCA: 126] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 09/16/2020] [Accepted: 09/21/2020] [Indexed: 05/03/2023]
Abstract
Each year, abiotic stress conditions such as drought, heat, salinity, cold and particularly their different combinations, inflict a heavy toll on crop productivity worldwide. The effects of these adverse conditions on plant productivity are becoming ever more alarming in recent years in light of the increased rate and intensity of global climatic changes. Improving crop tolerance to abiotic stress conditions requires a deep understanding of the response of plants to changes in their environment. This response is dependent on early and late signal transduction events that involve important signaling molecules such as reactive oxygen species (ROS), different plant hormones and other signaling molecules. It is the integration of these signaling events, mediated by an interplay between ROS and different plant hormones that orchestrates the plant response to abiotic stress and drive changes in transcriptomic, metabolic and proteomic networks that lead to plant acclimation and survival. Here we review some of the different studies that address hormone and ROS integration during the response of plants to abiotic stress. We further highlight the integration of ROS and hormone signaling during early and late phases of the plant response to abiotic stress, the key role of respiratory burst oxidase homologs in the integration of ROS and hormone signaling during these phases, and the involvement of hormone and ROS in systemic signaling events that lead to systemic acquired acclimation. Lastly, we underscore the need to understand the complex interactions that occur between ROS and different plant hormones during stress combinations.
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Affiliation(s)
- Amith R Devireddy
- Division of Plant Sciences, College of Agriculture, Food and Natural Resources, and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center University of Missouri, 1201 Rollins St, Columbia, MO, 65201, USA
| | - Sara I Zandalinas
- Division of Plant Sciences, College of Agriculture, Food and Natural Resources, and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center University of Missouri, 1201 Rollins St, Columbia, MO, 65201, USA
| | - Yosef Fichman
- Division of Plant Sciences, College of Agriculture, Food and Natural Resources, and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center University of Missouri, 1201 Rollins St, Columbia, MO, 65201, USA
| | - Ron Mittler
- Division of Plant Sciences, College of Agriculture, Food and Natural Resources, and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center University of Missouri, 1201 Rollins St, Columbia, MO, 65201, USA
- Department of Surgery, University of Missouri School of Medicine, Christopher S. Bond Life Sciences Center University of Missouri, 1201 Rollins St, Columbia, MO, 65211, USA
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26
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Ma Y, Shao L, Zhang W, Zheng F. Hydrogen sulfide induced by hydrogen peroxide mediates brassinosteroid-induced stomatal closure of Arabidopsis thaliana. FUNCTIONAL PLANT BIOLOGY : FPB 2021; 48:195-205. [PMID: 32910883 DOI: 10.1071/fp20205] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 08/17/2020] [Indexed: 06/11/2023]
Abstract
The role of hydrogen sulfide (H2S) and its relationship with hydrogen peroxide (H2O2) in brassinosteroid-induced stomatal closure in Arabidopsis thaliana (L.) Heynh. were investigated. In the present study, 2,4-epibrassinolide (EBR, a bioactive BR) induced stomatal closure in the wild type, the effects were inhibited by H2S scavenger and synthesis inhibitors, and H2O2 scavengers and synthesis inhibitor. However, EBR failed to close the stomata of mutants Atl-cdes, Atd-cdes, AtrbohF and AtrbohD/F. Additionally, EBR induced increase of L-/D-cysteine desulfhydrase (L-/D-CDes) activity, H2S production, and H2O2 production in the wild type, and the effects were inhibited by H2S scavenger and synthesis inhibitors, and H2O2 scavengers and synthesis inhibitor respectively. Furthermore, EBR increased H2O2 levels in the guard cells of AtrbohD mutant, but couldn't raise H2O2 levels in the guard cells of AtrbohF and AtrbohD/F mutants. Next, scavengers and synthesis inhibitor of H2O2 could significantly inhibit EBR-induced rise of L-/D-CDes activity and H2S production in the wild type, but H2S scavenger and synthesis inhibitors failed to repress EBR-induced H2O2 production. EBR could increase H2O2 levels in the guard cells of Atl-cdes and Atd-cdes mutants, but EBR failed to induce increase of L-/D-CDes activity and H2S production in AtrbohF and AtrbohD/F mutants. Therefore, we conclude that H2S and H2O2 are involved in the signal transduction pathway of EBR-induced stomatal closure. Altogether, our data suggested that EBR induces AtrbohF-dependent H2O2 production and subsequent AtL-CDes-/AtD-CDes-catalysed H2S production, and finally closes stomata in A. thaliana.
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Affiliation(s)
- Yinli Ma
- College of Life Sciences, Shanxi Normal University, Linfen 041004, People's Republic of China; and Corresponding author.
| | - Luhan Shao
- College of Life Sciences, Shanxi Normal University, Linfen 041004, People's Republic of China
| | - Wei Zhang
- College of Life Sciences, Shanxi Normal University, Linfen 041004, People's Republic of China
| | - Fengxi Zheng
- College of Life Sciences, Shanxi Normal University, Linfen 041004, People's Republic of China
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27
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Nazir F, Fariduddin Q, Hussain A, Khan TA. Brassinosteroid and hydrogen peroxide improve photosynthetic machinery, stomatal movement, root morphology and cell viability and reduce Cu- triggered oxidative burst in tomato. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 207:111081. [PMID: 32927154 DOI: 10.1016/j.ecoenv.2020.111081] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/22/2020] [Accepted: 07/27/2020] [Indexed: 05/21/2023]
Abstract
Brassinosteroids and hydrogen peroxide (H2O2) are extensively used to combat several environmental factors, including heavy metal stress in plants, but their cumulative impact on the maintenance of copper (Cu) homeostasis in plants could not be dissected at elevated level. This study was executed to explore the roles of 24-epibrassinolide (EBL; foliar) and H2O2 (root dipping) in resilience of tomato (Solanum lycopersicum L.) plants to Cu stress. The cumulative effect of EBL and H2O2 in tomato plants grown under Cu stress (10 or 100 mg kg-1 soil) were assessed. Roots of 20 d old plants were submerged in 0.1 mM of H2O2 solution for 4 h and subsequently transplanted in the soil-filled earthen pots and at 30 day after transplantation (DAT), the plants were sprinkled with deionized water (control), and/or 10-8 M EBL and plant performances were evaluated at 40 DAT. High Cu (100 mg kg-1 soil) concentration considerably reduced photosynthetic efficacy, cell viability, and plant growth, and deformed chloroplast ultrastructure and root morphology with altered stomatal behavior, but boosted the activity of antioxidant enzymes, proline content and electrolyte leakage in the leaves of tomato. Moreover, EBL and H2O2 implemented through distinct modes improved photosynthetic efficiency, modified chloroplast ultrastructure, stomatal behavior, root structure, cell viability and production of antioxidants and proline (osmolyte) that augmented resilience of tomato plants to Cu stress. This study revealed the potential of EBL and H2O2 applied through distinct mode could serve as an effective strategy to reduce Cu-toxicity in tomato crop.
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Affiliation(s)
- Faroza Nazir
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Qazi Fariduddin
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
| | - Anjuman Hussain
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Tanveer Alam Khan
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences/ Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, 510640, China
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28
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Melatonin-Induced Water Stress Tolerance in Plants: Recent Advances. Antioxidants (Basel) 2020; 9:antiox9090809. [PMID: 32882822 PMCID: PMC7554692 DOI: 10.3390/antiox9090809] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/15/2020] [Accepted: 08/18/2020] [Indexed: 11/16/2022] Open
Abstract
Water stress (drought and waterlogging) is severe abiotic stress to plant growth and development. Melatonin, a bioactive plant hormone, has been widely tested in drought situations in diverse plant species, while few studies on the role of melatonin in waterlogging stress conditions have been published. In the current review, we analyze the biostimulatory functions of melatonin on plants under both drought and waterlogging stresses. Melatonin controls the levels of reactive oxygen and nitrogen species and positively changes the molecular defense to improve plant tolerance against water stress. Moreover, the crosstalk of melatonin and other phytohormones is a key element of plant survival under drought stress, while this relationship needs further investigation under waterlogging stress. In this review, we draw the complete story of water stress on both sides-drought and waterlogging-through discussing the previous critical studies under both conditions. Moreover, we suggest several research directions, especially for waterlogging, which remains a big and vague piece of the melatonin and water stress puzzle.
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Moustafa-Farag M, Mahmoud A, Arnao MB, Sheteiwy MS, Dafea M, Soltan M, Elkelish A, Hasanuzzaman M, Ai S. Melatonin-Induced Water Stress Tolerance in Plants: Recent Advances. Antioxidants (Basel) 2020. [PMID: 32882822 DOI: 10.20944/preprints202008.0359.v1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023] Open
Abstract
Water stress (drought and waterlogging) is severe abiotic stress to plant growth and development. Melatonin, a bioactive plant hormone, has been widely tested in drought situations in diverse plant species, while few studies on the role of melatonin in waterlogging stress conditions have been published. In the current review, we analyze the biostimulatory functions of melatonin on plants under both drought and waterlogging stresses. Melatonin controls the levels of reactive oxygen and nitrogen species and positively changes the molecular defense to improve plant tolerance against water stress. Moreover, the crosstalk of melatonin and other phytohormones is a key element of plant survival under drought stress, while this relationship needs further investigation under waterlogging stress. In this review, we draw the complete story of water stress on both sides-drought and waterlogging-through discussing the previous critical studies under both conditions. Moreover, we suggest several research directions, especially for waterlogging, which remains a big and vague piece of the melatonin and water stress puzzle.
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Affiliation(s)
- Mohamed Moustafa-Farag
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Horticulture Research Institute, Agriculture Research Center, 9 Gmaa St, Giza 12619, Egypt
| | - Ahmed Mahmoud
- Horticulture Research Institute, Agriculture Research Center, 9 Gmaa St, Giza 12619, Egypt
- Laboratory of Germplasm Innovation and Molecular Breeding, Institute of Vegetable Science, Zhejiang University, Hangzhou 310058, China
| | - Marino B Arnao
- Department of Plant Physiology, Faculty of Biology, University of Murcia, 30100 Murcia, Spain
| | - Mohamed S Sheteiwy
- Department of Agronomy, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt
| | - Mohamed Dafea
- Horticulture Research Institute, Agriculture Research Center, 9 Gmaa St, Giza 12619, Egypt
| | - Mahmoud Soltan
- Horticulture and Crop Science Department, Ohio Agricultural Research and Development Center, Columbus, The Ohio State University, Columbus, OH 43210, USA
- Vegetable Production under Modified Environment Department, Horticulture Research Institute, Agriculture Research Center, Cairo 11865, Egypt
| | - Amr Elkelish
- Botany Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Shaoying Ai
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
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Nazir F, Fariduddin Q, Khan TA. Hydrogen peroxide as a signalling molecule in plants and its crosstalk with other plant growth regulators under heavy metal stress. CHEMOSPHERE 2020; 252:126486. [PMID: 32234629 DOI: 10.1016/j.chemosphere.2020.126486] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/29/2020] [Accepted: 03/12/2020] [Indexed: 05/03/2023]
Abstract
Hydrogen peroxide (H2O2) acts as a significant regulatory component interrelated with signal transduction in plants. The positive role of H2O2 in plants subjected to myriad of abiotic factors has led us to comprehend that it is not only a free radical, generated as a product of oxidative stress, but also helpful in the maintenance of cellular homeostasis in crop plants. Studies over the last two centuries has indicated that H2O2 is a key molecule which regulate photosynthesis, stomatal movement, pollen growth, fruit and flower development and leaf senescence. Exogenously-sourced H2O2 at nanomolar levels functions as a signalling molecule, facilitates seed germination, chlorophyll content, stomatal opening, and delays senescence, while at elevated levels, it triggers oxidative burst to organic molecules, which could lead to cell death. Furthermore, H2O2 is also known to interplay synergistically or antagonistically with other plant growth regulators such as auxins, gibberellins, cytokinins, abscisic acid, jasmonic acid, ethylene and salicylic acid, nitric oxide and Ca2+ (as signalling molecules), and brassinosteroids (steroidal PGRs) under myriad of environmental stresses and thus, mediate plant growth and development and reactions to abiotic factors. The purpose of this review is to specify accessible knowledge on the role and dynamic mechanisms of H2O2 in mediating growth responses and plant resilience to HM stresses, and its crosstalk with other significant PGRs in controlling various processes. More recently, signal transduction by mitogen activated protein kinases and other transcription factors which attenuate HM stresses in plants have also been dissected.
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Affiliation(s)
- Faroza Nazir
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Qazi Fariduddin
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
| | - Tanveer Alam Khan
- Department of Plant Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research, Corrensstraße 3, D-06466, Gatersleben, Germany
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Zhang Z, Yang X, Cheng L, Guo Z, Wang H, Wu W, Shin K, Zhu J, Zheng X, Bian J, Li Y, Gu L, Zhu Q, Wang ZY, Wang W. Physiological and transcriptomic analyses of brassinosteroid function in moso bamboo (Phyllostachys edulis) seedlings. PLANTA 2020; 252:27. [PMID: 32712728 DOI: 10.1007/s00425-020-03432-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 07/17/2020] [Indexed: 06/11/2023]
Abstract
This study demonstrates that brassinosteroid is essential for seedling and shoot growth in moso bamboo. The shoot of moso bamboo is known to grow extremely fast. The roles of phytohormones in such fast growth of bamboo shoot remain unclear. Here we reported that endogenous brassinosteroid (BR) is a major factor promoting bamboo shoot internode elongation. Reducing endogenous brassinosteroid level by its biosynthesis inhibitor propiconazole stunted shoot growth in seedling stage, whereas exogenous BR application promoted scale leaf elongation and the inclination of lamina joint of leaves and scale leaves. Genome-wide transcriptome analysis identified hundreds of genes whose expression levels are altered by BR and propiconazole in shoots and roots of bamboo seedling. The data show that BR regulates cell wall-related genes, hydrogen peroxide catabolic genes, and auxin-related genes. Our study demonstrates an essential role of BR in fast growth bamboo shoots and identifies a large number of BR-responsive genes in bamboo seedlings.
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Affiliation(s)
- Zhe Zhang
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xuelian Yang
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, 94305, USA
| | - Ling Cheng
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zejun Guo
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Huiyuan Wang
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Weihuang Wu
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Kihye Shin
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jinyao Zhu
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xiaoli Zheng
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jianghu Bian
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yangchen Li
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Lianfeng Gu
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qiang Zhu
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zhi-Yong Wang
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, 94305, USA
| | - Wenfei Wang
- Basic Forestry and Proteomics Research Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, China.
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China.
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Insights into the Physiological and Biochemical Impacts of Salt Stress on Plant Growth and Development. AGRONOMY-BASEL 2020. [DOI: 10.3390/agronomy10070938] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Climate change is causing soil salinization, resulting in crop losses throughout the world. The ability of plants to tolerate salt stress is determined by multiple biochemical and molecular pathways. Here we discuss physiological, biochemical, and cellular modulations in plants in response to salt stress. Knowledge of these modulations can assist in assessing salt tolerance potential and the mechanisms underlying salinity tolerance in plants. Salinity-induced cellular damage is highly correlated with generation of reactive oxygen species, ionic imbalance, osmotic damage, and reduced relative water content. Accelerated antioxidant activities and osmotic adjustment by the formation of organic and inorganic osmolytes are significant and effective salinity tolerance mechanisms for crop plants. In addition, polyamines improve salt tolerance by regulating various physiological mechanisms, including rhizogenesis, somatic embryogenesis, maintenance of cell pH, and ionic homeostasis. This research project focuses on three strategies to augment salinity tolerance capacity in agricultural crops: salinity-induced alterations in signaling pathways; signaling of phytohormones, ion channels, and biosensors; and expression of ion transporter genes in crop plants (especially in comparison to halophytes).
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Liu J, Yang R, Jian N, Wei L, Ye L, Wang R, Gao H, Zheng Q. Putrescine metabolism modulates the biphasic effects of brassinosteroids on canola and Arabidopsis salt tolerance. PLANT, CELL & ENVIRONMENT 2020; 43:1348-1359. [PMID: 32176351 DOI: 10.1111/pce.13757] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/03/2020] [Accepted: 03/06/2020] [Indexed: 05/08/2023]
Abstract
Brassinosteroids (BRs) are known to improve salt tolerance of plants, but not in all situations. Here, we show that a certain concentration of 24-epibrassinolide (EBL), an active BR, can promote the tolerance of canola under high-salt stress, but the same concentration is disadvantageous under low-salt stress. We define this phenomenon as hormonal stress-level-dependent biphasic (SLDB) effects. The SLDB effects of EBL on salt tolerance in canola are closely related to H2 O2 accumulation, which is regulated by polyamine metabolism, especially putrescine (Put) oxidation. The inhibition of EBL on canola under low-salt stress can be ameliorated by repressing Put biosynthesis or diamine oxidase activity to reduce H2 O2 production. Genetic and phenotypic results of bri1-9, bak1, bes1-D, and bzr1-1D mutants and overexpression lines of BRI1 and BAK1 in Arabidopsis indicate that a proper enhancement of BR signaling benefits plants in countering salt stress, whereas excessive enhancement is just as harmful as a deficiency. These results highlight the involvement of crosstalk between BR signaling and Put metabolism in H2 O2 accumulation, which underlies the dual role of BR in plant salt tolerance.
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Affiliation(s)
- Jinlong Liu
- College of Grassland Agriculture, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Rongchen Yang
- College of Grassland Agriculture, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Ni Jian
- College of Grassland Agriculture, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Long Wei
- College of Natural Resources and Environmental Science, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Liaoliao Ye
- College of Grassland Agriculture, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Ruihua Wang
- College of Grassland Agriculture, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Huiling Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Qingsong Zheng
- College of Natural Resources and Environmental Science, Nanjing Agricultural University, Nanjing, People's Republic of China
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Liu L, Huang L, Lin X, Sun C. Hydrogen peroxide alleviates salinity-induced damage through enhancing proline accumulation in wheat seedlings. PLANT CELL REPORTS 2020; 39:567-575. [PMID: 32025801 DOI: 10.1007/s00299-020-02513-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 01/21/2020] [Indexed: 05/08/2023]
Abstract
NADPH oxidase-mediated H2O2 maintains proline concentration under NaCl stress through regulating its biosynthesis and degradation, conferring salt tolerance to wheat plants. Considerable attention has been paid to the specific role of hydrogen peroxide (H2O2) in plant stress responses. Here, using microscopic, pharmacological and biochemical approaches, we explored H2O2 production and its roles in redox control under salt stress in wheat roots. Exogenous H2O2 pretreatment decreased salt-induced lipid peroxidation, while increased proline content in wheat roots. Salt stress led to a transient increase in NADPH oxidase activity accompanied by accumulation of H2O2 and proline in roots. The elevated proline accumulation in the presence of NaCl was significantly suppressed by diphenyleneiodonium, an inhibitor of NADPH oxidase, and dimethylthiourea, a scavenger of H2O2. The rate-limiting enzyme involved in proline biosynthesis, Δ1-pyrroline-5-carboxylate synthetase (P5CS), was induced by NaCl, whereas the house-keeping enzyme in proline degradation, proline dehydrogenase (ProDH), was inhibited. After 6 h, the activity of P5CS increased by 1.5-fold, whereas ProDH decreased by 13.9%. The levels of these enzymes, however, were restored by NADPH oxidase inhibitor or H2O2 scavenger. After treatment with H2O2, the effects of diphenyleneiodonium and or dimethylthiourea on proline content and activities of P5CS and ProDH were reversed. These results suggested that NADPH oxidase-mediated H2O2 alleviates oxidative damage induced by salt stress through regulating proline biosynthesis and degradation.
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Affiliation(s)
- Lijuan Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource and Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Lin Huang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource and Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xianyong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource and Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Chengliang Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource and Environmental Sciences, Zhejiang University, Hangzhou, 310058, China.
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Zhang S, Li C, Ren H, Zhao T, Li Q, Wang S, Zhang Y, Xiao F, Wang X. BAK1 Mediates Light Intensity to Phosphorylate and Activate Catalases to Regulate Plant Growth and Development. Int J Mol Sci 2020; 21:ijms21041437. [PMID: 32093294 PMCID: PMC7073115 DOI: 10.3390/ijms21041437] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/08/2020] [Accepted: 02/18/2020] [Indexed: 12/31/2022] Open
Abstract
BAK1 (brassinosteroid-insensitive 1 (BRI1) associated receptor kinase 1) plays major roles in multiple signaling pathways as a coreceptor to regulate plant growth and development and stress response. However, the role of BAK1 in high light signaling is still poorly understood. Here we observed that overexpression of BAK1 in Arabidopsis interferes with the function of high light in promoting plant growth and development, which is independent of the brassinosteroid (BR) signaling pathway. Further investigation shows that high light enhances the phosphorylation of BAK1 and catalase activity, thereby reducing hydrogen peroxide (H2O2) accumulation. Catalase3 (CAT3) is identified as a BAK1-interacting protein by affinity purification and LC-MS/MS analysis. Biochemical analysis confirms that BAK1 interacts with and phosphorylates all three catalases (CAT1, CAT2, and CAT3) of the Arabidopsis genome, and the trans-phosphorylation sites of three catalases with BAK1-CD are identified by LC-MS/MS in vitro. Genetic analyses reveal that the BAK1 overexpression plants knocked out all the three CAT genes completely abolishing the effect of BAK1 on suppression of high light-promoted growth. This study first unravels the role of BAK1 in mediating high light-triggered activation of CATs, thereby degrading H2O2 and regulating plant growth and development in Arabidopsis.
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Affiliation(s)
- Shan Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.Z.); (C.L.); (H.R.); (T.Z.); (Q.L.); (S.W.)
- Department of Plant Sciences, University of Idaho, Moscow, ID 83844, USA
| | - Cheng Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.Z.); (C.L.); (H.R.); (T.Z.); (Q.L.); (S.W.)
- Department of Plant Sciences, University of Idaho, Moscow, ID 83844, USA
| | - Haihua Ren
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.Z.); (C.L.); (H.R.); (T.Z.); (Q.L.); (S.W.)
| | - Tong Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.Z.); (C.L.); (H.R.); (T.Z.); (Q.L.); (S.W.)
| | - Qi Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.Z.); (C.L.); (H.R.); (T.Z.); (Q.L.); (S.W.)
| | - Shufen Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.Z.); (C.L.); (H.R.); (T.Z.); (Q.L.); (S.W.)
| | - Yanfeng Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.Z.); (C.L.); (H.R.); (T.Z.); (Q.L.); (S.W.)
- Hybrid Rapeseed Research Center of Shaanxi Province, Yangling 712100, Shaanxi, China
| | - Fangming Xiao
- Department of Plant Sciences, University of Idaho, Moscow, ID 83844, USA
- Correspondence: (F.X.); (X.W.); Tel.: +208-885-0120 (F.X.); +86-18092867224 (X.W.)
| | - Xiaofeng Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.Z.); (C.L.); (H.R.); (T.Z.); (Q.L.); (S.W.)
- Correspondence: (F.X.); (X.W.); Tel.: +208-885-0120 (F.X.); +86-18092867224 (X.W.)
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Zhou S, Cheng X, Li F, Feng P, Hu G, Chen G, Xie Q, Hu Z. Overexpression of SlOFP20 in Tomato Affects Plant Growth, Chlorophyll Accumulation, and Leaf Senescence. FRONTIERS IN PLANT SCIENCE 2019; 10:1510. [PMID: 31850017 PMCID: PMC6896838 DOI: 10.3389/fpls.2019.01510] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 10/30/2019] [Indexed: 06/10/2023]
Abstract
Previous studies have shown that OVATE family proteins (OFPs) participate in various aspects of plant growth and development. How OFPs affect leaf chlorophyll accumulation and leaf senescence has not been reported yet. Here, we found that overexpression of SlOFP20 in tomato not only impacted plant architecture but also enhanced the leaf chlorophyll accumulation and retarded leaf senescence. Gene expression analysis of SlGLK1, SlGLK2, and HY5, encoding transcription factors that are putatively involved in chloroplast development and chlorophyll levels, were significantly up-regulated in SlOFP20-OE lines. Both chlorophyll biosynthesis and degradation genes were distinctly regulated in transgenic plants. Moreover, SlOFP20-OE plants accumulated more starch and soluble sugar than wild-type plants, indicating that an increased chlorophyll content conferred some higher photosynthetic performance in SlOFP20-OE plants. Furthermore, The levels of leaf senescence-related indexes, such as hydrogen peroxide, malondialdehyde, and antioxidant enzymes activities, were differently altered, too. SlOFP20 overexpression repressed the expression of senescence-related genes, SAG12, RAV1, and WRKY53. Moreover, abscisic acid and ethylene synthesis genes were down-regulated in transgenic lines. These results provide new insights into how SlOFP20 regulates chlorophyll accumulation and leaf senescence.
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Affiliation(s)
| | | | | | | | | | | | - Qiaoli Xie
- *Correspondence: Qiaoli Xie, ; Zongli Hu,
| | - Zongli Hu
- *Correspondence: Qiaoli Xie, ; Zongli Hu,
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Nazir F, Hussain A, Fariduddin Q. Hydrogen peroxide modulate photosynthesis and antioxidant systems in tomato (Solanum lycopersicum L.) plants under copper stress. CHEMOSPHERE 2019; 230:544-558. [PMID: 31125883 DOI: 10.1016/j.chemosphere.2019.05.001] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 04/09/2019] [Accepted: 05/01/2019] [Indexed: 05/23/2023]
Abstract
Plant growth and development could be modulated by minute concentrations of hydrogen peroxide (H2O2) which serves as a signaling molecule for various processes. The present work was conducted with an aim that H2O2 could also modify root morphology, morphology and movement of stomata, photosynthetic responses, activity of carbonic anhydrase, and antioxidant systems in tomato (Solanum lycopersicum L.) plants under copper stress (Cu; 10 or 100 mg kg-1 soil). Roots of 20 d old plants were dipped in 0.1 or 0.5 mM of H2O2 solution for 4 h and then transplanted to the soil filled in earthen pots. High Cu stress (100 mg kg-1 soil) altered root morphology, reduced chlorophyll content and photosynthetic capacity and also affected movement of stomata and generation of antioxidant species at 40 d after transplantation. Further, root dipping treatment of H2O2 to plants under stress and stress-free conditions enhanced accumulation of proline and activity of catalase, peroxidase, and superoxide dismutase, whereas production of superoxide radical (O2•¯) and H2O2 were decreased. Overall, H2O2 treatment improved growth, photosynthesis, metabolic state of the plants which provided tolerance and helped the plants to cope well under Cu stress.
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Affiliation(s)
- Faroza Nazir
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Anjuman Hussain
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Qazi Fariduddin
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
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Hussain A, Nazir F, Fariduddin Q. 24-epibrassinolide and spermidine alleviate Mn stress via the modulation of root morphology, stomatal behavior, photosynthetic attributes and antioxidant defense in Brassica juncea. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2019; 25:905-919. [PMID: 31404216 PMCID: PMC6656853 DOI: 10.1007/s12298-019-00672-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/01/2019] [Accepted: 05/01/2019] [Indexed: 05/19/2023]
Abstract
Brassinosteroids and polyamines are generally used to surpass different abiotic stresses like heavy metal toxicity in plants. The current study was conducted with an aim that 24-epibrassinolide (EBL) and/or spermidine (Spd) could modify root morphology, movement of stomata, cell viability, photosynthetic effectiveness, carbonic anhydrase and antioxidant enzyme activities in Brassica juncea under manganese (Mn) stress (30 or 150 mg kg-1 soil). EBL (10-8 M) and/or Spd, (1.0 mM) were applied to the foliage of B. juncea plants at 35 days after sowing (DAS), grown in the presence of Mn (30 or 150 mg kg-1 soil). High Mn concentration (150 mg kg-1 soil) altered root morphology, affected stomatal movement, reduced the viability of cells and photosynthetic effectiveness and increased the production of reactive oxygen species (O2 ·- and H2O2) in the leaves and antioxidant defense system of B. juncea at 45 DAS. Furthermore, exogenous treatment of EBL and Spd under stress and stress- free conditions improved the aforesaid traits while decreased the O2 ·- and H2O2 production. Therefore, EBL and Spd could be applied to the foliage of B. juncea plants for the better growth under metal stress.
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Affiliation(s)
- Anjuman Hussain
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002 India
| | - Faroza Nazir
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002 India
| | - Qazi Fariduddin
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002 India
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Setsungnern A, Treesubsuntorn C, Thiravetyan P. Exogenous 24-epibrassinolide enhanced benzene detoxification in Chlorophytum comosum via overexpression and conjugation by glutathione. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 662:805-815. [PMID: 30708296 DOI: 10.1016/j.scitotenv.2019.01.258] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 01/17/2019] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
Benzene, a hydrophobic xenobiotic, induces cell damage in both humans and plants. Due to its volatilization, benzene is an airborne environmental problem. The potential of an exogenous bioactive brassinosteroid phytohormone to enhance benzene removal for phytoremediation was investigated. Chlorophytum comosum had higher brassinosteroids content under benzene stress. Plant treated with 24-epibrassinolide (EBR) removed significantly more gaseous benzene than untreated plants under both light and dark conditions at an initial benzene of 12.75 μmol in the systematic chambers (P < 0.05). Although benzene increased malondialdehyde in plant tissue, EBR-treated plants lowered this lipid peroxidation by enhancing their antioxidant content and increasing benzene detoxification-related genes expression, including ascorbic acid (AsA), homogentisate phytyltransferase (HPT), and glutathione synthethase (GS). This contributed to maintaining higher photosynthetic performances. Moreover, EBR-treated plants had higher gene expression of ferredoxin-NADP reductase (FNR) and glucose-6-phosphate 1-dehydrogenase (G6PDH), thus promoting NADPH biosynthesis to cope with benzene under light and dark conditions, respectively. Further, higher glutathione biosynthesis promoted more glutathione conjugate of benzene products including S-phenylcysteine (SPC) in EBR-treated plants. Hence, application of exogenous EBR as foliar spray provided for enhanced benzene detoxification via antioxidant content, benzene detoxification-related genes and benzene conjugation products with glutathione (GSH) and consequently greater gaseous benzene removal.
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Affiliation(s)
- Arnon Setsungnern
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Chairat Treesubsuntorn
- Pilot Plant Development and Training Institute, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Paitip Thiravetyan
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand.
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Yuan J, Liu T, Yu Z, Li Y, Ren H, Hou X, Li Y. Genome-wide analysis of the Chinese cabbage IQD gene family and the response of BrIQD5 in drought resistance. PLANT MOLECULAR BIOLOGY 2019; 99:603-620. [PMID: 30783953 DOI: 10.1007/s11103-019-00839-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 02/09/2019] [Indexed: 05/14/2023]
Abstract
KEY MESSAGE Thirty-five IQD genes were identified and analysed in Chinese cabbage and BrIQD5 transgenic plants enhanced the drought resistance of plants. The IQD (IQ67-domain) family plays an important role in various abiotic stress responses in plant species. However, the roles of IQD genes in the Chinese cabbage response to abiotic stress remain unclear. Here, 35 IQD genes, from BrIQD1 to BrIQD35, were identified in Chinese cabbage (Brassica rapa ssp. pekinensis). Based on the phylogenetic analysis, these genes were clustered into three subfamilies (I-III), and members within the same subfamilies shared conserved exon-intron distribution and motif composition. The 35 BrIQD genes were unevenly distributed on 9 of the 10 chromosomes with 4 segmental duplication events. Ka/Ks ratios showed that the duplicated BrIQDs had mainly experienced strong purifying selection. Quantitative real-time polymerase chain reaction of 35 BrIQDs under PEG6000 indicated that BrIQD5 was significantly induced by PEG6000. To verify BrIQD5 function, BrIQD5 was heterologously overexpressed in tobacco and was silenced in Chinese cabbage. BrIQD5-overexpressed plants showed more tolerance to drought stress than wild-type plants, while BrIQD5-silenced plants in Chinese cabbage showed decreased drought tolerance. Additionally, six BrIQD5 potential interactive proteins were isolated by the yeast two-hybrid assay, including BrCaMa, BrCaMb and four other stress-related proteins. Motif IQ1 of BrIQD5 is important for the interaction with BrCaMa and BrCaMb, and the isoleucine in motif IQ1 is an essential amino acid for calmodulin binding to BrIQD5. The identification and cloning of the new Chinese cabbage drought tolerance genes will promote the drought-resistant breeding of Chinese cabbage and help to better understand the mechanism of IQD involved in the drought tolerance of plants.
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Affiliation(s)
- Jingping Yuan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Tongkun Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhanghong Yu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yan Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Haibo Ren
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xilin Hou
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ying Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
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Černý M, Habánová H, Berka M, Luklová M, Brzobohatý B. Hydrogen Peroxide: Its Role in Plant Biology and Crosstalk with Signalling Networks. Int J Mol Sci 2018; 19:E2812. [PMID: 30231521 PMCID: PMC6163176 DOI: 10.3390/ijms19092812] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/13/2018] [Accepted: 09/15/2018] [Indexed: 12/30/2022] Open
Abstract
Hydrogen peroxide (H₂O₂) is steadily gaining more attention in the field of molecular biology research. It is a major REDOX (reduction⁻oxidation reaction) metabolite and at high concentrations induces oxidative damage to biomolecules, which can culminate in cell death. However, at concentrations in the low nanomolar range, H₂O₂ acts as a signalling molecule and in many aspects, resembles phytohormones. Though its signalling network in plants is much less well characterized than are those of its counterparts in yeast or mammals, accumulating evidence indicates that the role of H₂O₂-mediated signalling in plant cells is possibly even more indispensable. In this review, we summarize hydrogen peroxide metabolism in plants, the sources and sinks of this compound and its transport via peroxiporins. We outline H₂O₂ perception, its direct and indirect effects and known targets in the transcriptional machinery. We focus on the role of H₂O₂ in plant growth and development and discuss the crosstalk between it and phytohormones. In addition to a literature review, we performed a meta-analysis of available transcriptomics data which provided further evidence for crosstalk between H₂O₂ and light, nutrient signalling, temperature stress, drought stress and hormonal pathways.
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Affiliation(s)
- Martin Černý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences Mendel University in Brno, 613 00 Brno, Czech Republic.
- Phytophthora Research Centre, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
| | - Hana Habánová
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences Mendel University in Brno, 613 00 Brno, Czech Republic.
- CEITEC-Central European Institute of Technology, Faculty of AgriSciences Mendel University in Brno, 613 00 Brno, Czech Republic.
- Brno Ph.D. Talent, South Moravian Centre for International Mobility, 602 00 Brno, Czech Republic.
| | - Miroslav Berka
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences Mendel University in Brno, 613 00 Brno, Czech Republic.
| | - Markéta Luklová
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences Mendel University in Brno, 613 00 Brno, Czech Republic.
- CEITEC-Central European Institute of Technology, Faculty of AgriSciences Mendel University in Brno, 613 00 Brno, Czech Republic.
| | - Břetislav Brzobohatý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences Mendel University in Brno, 613 00 Brno, Czech Republic.
- CEITEC-Central European Institute of Technology, Faculty of AgriSciences Mendel University in Brno, 613 00 Brno, Czech Republic.
- Institute of Biophysics AS CR, 613 00 Brno, Czech Republic.
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Tanveer M, Shahzad B, Sharma A, Biju S, Bhardwaj R. 24-Epibrassinolide; an active brassinolide and its role in salt stress tolerance in plants: A review. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 130:69-79. [PMID: 29966934 DOI: 10.1016/j.plaphy.2018.06.035] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 06/09/2018] [Accepted: 06/23/2018] [Indexed: 05/24/2023]
Abstract
Salt stress is one of most dramatic abiotic stresses, reduces crop yield significantly. Application of hormones proved effective salt stress ameliorating approach. 24-Epibrassinolide (EBL), an active by-product from brassinolide biosynthesis shows significant salt stress tolerance in plants. EBL application improves plant growth and development under salt stress by playing as signalling compound in different metabolic and physiological processes. This article compiles all identified ways by which EBL improves plant growth and enhances crop yield. Furthermore, EBL enhances photosynthetic rate, reduces ROS production and plays important role in ionic homeostasis. Furthermore EBL-induced salt stress tolerance suggest that complex transcriptional and translational reprogramming occurs in response to EBL and salt stress therefore transcriptional and translational changes in response to EBL application are also discussed in this article.
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Affiliation(s)
- Mohsin Tanveer
- School of Land and Food, University of Tasmania Hobart 2007, Tasmania, Australia.
| | - Babar Shahzad
- School of Land and Food, University of Tasmania Hobart 2007, Tasmania, Australia
| | - Anket Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, Punjab, India
| | - Sajitha Biju
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Victoria, 3010, Australia
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, Punjab, India
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Brassinosteroid reduces ABA accumulation leading to the inhibition of ABA-induced stomatal closure. Biochem Biophys Res Commun 2018; 504:143-148. [PMID: 30170727 DOI: 10.1016/j.bbrc.2018.08.146] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 08/24/2018] [Indexed: 12/22/2022]
Abstract
Proper regulation of stomatal movement in response to various environmental stresses or developmental status is critical for the adaptation of many plant species to land. In plants, abscisic acid (ABA)-induced stomatal closure is a well-adapted method of regulating water status. In addition to ABA, we previously showed that plant-specific steroidal hormone, brassinosteroid (BR), also induces stomatal closure; however, BR modulates ABA-induced stomatal closure negatively at high concentrations. In this study, we further investigated the cross-talk between ABA and BR in relation to stomatal movement. In contrast to previous reports that ABA-induced stomatal closure was inhibited by brassinolide (BL), the most active BR, we showed that BL-induced stomatal closure was enhanced by ABA, indicating that the sequence of ABA or BL treatments led to different results. We found that this phenomenon occurred because the guard cells still had the capacity to be closed further by ABA, as the degree of stomatal closure by BL was always less than that by ABA. We also found that BL-induced stomatal closure required Open Stomata 1 (OST1) activity and the induced expression of OST1 was indifferent to the sequence of ABA and/or BL treatments. In addition, we examined the underlying mechanism by which inhibition of ABA-induced stomatal closure by BL occurred. We revealed that the downregulation of ABA-biosynthetic genes by BL resulted in a lower accumulation of ABA. These results suggested that the regulation of stomatal movement is finely controlled by the combined effects of plant hormones, ABA and BR.
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Gruszka D, Janeczko A, Dziurka M, Pociecha E, Fodor J. Non-enzymatic antioxidant accumulations in BR-deficient and BR-insensitive barley mutants under control and drought conditions. PHYSIOLOGIA PLANTARUM 2018; 163:155-169. [PMID: 29215730 DOI: 10.1111/ppl.12674] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 11/27/2017] [Indexed: 05/12/2023]
Abstract
Drought is one of the most adverse stresses that affect plant growth and yield. Disturbances in metabolic activity resulting from drought cause overproduction of reactive oxygen species. It is postulated that brassinosteroids (BRs) regulate plant tolerance to the stress conditions, but the underlying mechanisms remain largely unknown. An involvement of endogenous BRs in regulation of the antioxidant homeostasis is not fully clarified either. Therefore, the aim of this study was to elucidate the role of endogenous BRs in regulation of non-enzymatic antioxidants in barley (Hordeum vulgare) under control and drought conditions. The plant material included the 'Bowman' cultivar and a group of semi-dwarf near-isogenic lines (NILs), representing mutants deficient in BR biosynthesis or signaling. In general, accumulations of 11 compounds representing various types of non-enzymatic antioxidants were analyzed under both conditions. The analyses of accumulations of reduced and oxidized forms of ascorbate indicated that the BR mutants contain significantly higher contents of dehydroascorbic acid under drought conditions when compared with the 'Bowman' cultivar. The analysis of glutathione accumulation indicated that under the control conditions the BR-insensitive NILs contained significantly lower concentrations of this antioxidant when compared with the rest of genotypes. Therefore, we postulate that BR sensitivity is required for normal accumulation of glutathione. A complete accumulation profile of various tocopherols indicated that functional BR biosynthesis and signaling are required for their normal accumulation under both conditions. Results of this study provided an insight into the role of endogenous BRs in regulation of the non-enzymatic antioxidant homeostasis.
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Affiliation(s)
- Damian Gruszka
- Department of Genetics, Faculty of Biology and Environment Protection, University of Silesia, Katowice, Poland
| | - Anna Janeczko
- The Franciszek Gorski Institute of Plant Physiology, Polish Academy of Sciences, Krakow, Poland
| | - Michal Dziurka
- The Franciszek Gorski Institute of Plant Physiology, Polish Academy of Sciences, Krakow, Poland
| | - Ewa Pociecha
- Department of Plant Physiology, University of Agriculture in Krakow, Krakow, Poland
| | - Jozsef Fodor
- Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
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Lee J, Shim D, Moon S, Kim H, Bae W, Kim K, Kim YH, Rhee SK, Hong CP, Hong SY, Lee YJ, Sung J, Ryu H. Genome-wide transcriptomic analysis of BR-deficient Micro-Tom reveals correlations between drought stress tolerance and brassinosteroid signaling in tomato. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 127:553-560. [PMID: 29723826 DOI: 10.1016/j.plaphy.2018.04.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/18/2018] [Accepted: 04/24/2018] [Indexed: 05/03/2023]
Abstract
Brassinosteroids (BRs) are plant steroid hormones that play crucial roles in a range of growth and developmental processes. Although BR signal transduction and biosynthetic pathways have been well characterized in model plants, their biological roles in an important crop, tomato (Solanum lycopersicum), remain unknown. Here, cultivated tomato (WT) and a BR synthesis mutant, Micro-Tom (MT), were compared using physiological and transcriptomic approaches. The cultivated tomato showed higher tolerance to drought and osmotic stresses than the MT tomato. However, BR-defective phenotypes of MT, including plant growth and stomatal closure defects, were completely recovered by application of exogenous BR or complementation with a SlDWARF gene. Using genome-wide transcriptome analysis, 619 significantly differentially expressed genes (DEGs) were identified between WT and MT plants. Several DEGs were linked to known signaling networks, including those related to biotic/abiotic stress responses, lignification, cell wall development, and hormone responses. Consistent with the higher susceptibility of MT to drought stress, several gene sets involved in responses to drought and osmotic stress were differentially regulated between the WT and MT tomato plants. Our data suggest that BR signaling pathways are involved in mediating the response to abiotic stress via fine-tuning of abiotic stress-related gene networks in tomato plants.
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Affiliation(s)
- Jinsu Lee
- Department of Biology, Chungbuk National University, Cheongju 28644, Republic of Korea.
| | - Donghwan Shim
- Department of Forest Genetic Resources, National Institute of Forest Science, Suwon 16631, Republic of Korea.
| | - Suyun Moon
- Department of Biology, Chungbuk National University, Cheongju 28644, Republic of Korea.
| | - Hyemin Kim
- Department of Biology, Chungbuk National University, Cheongju 28644, Republic of Korea.
| | - Wonsil Bae
- Department of Biology, Chungbuk National University, Cheongju 28644, Republic of Korea.
| | - Kyunghwan Kim
- Department of Biology, Chungbuk National University, Cheongju 28644, Republic of Korea.
| | - Yang-Hoon Kim
- Department of Microbiology, Chungbuk National University, Cheongju, 28644, Republic of Korea.
| | - Sung-Keun Rhee
- Department of Microbiology, Chungbuk National University, Cheongju, 28644, Republic of Korea.
| | - Chang Pyo Hong
- TheragenEtex Bio Institute, Suwon 16229, Republic of Korea.
| | - Suk-Young Hong
- Division of Soil and Fertilizer, National Academy of Agricultural Science, RDA, Wanju, 27715, Republic of Korea.
| | - Ye-Jin Lee
- Division of Soil and Fertilizer, National Academy of Agricultural Science, RDA, Wanju, 27715, Republic of Korea.
| | - Jwakyung Sung
- Division of Soil and Fertilizer, National Academy of Agricultural Science, RDA, Wanju, 27715, Republic of Korea.
| | - Hojin Ryu
- Department of Biology, Chungbuk National University, Cheongju 28644, Republic of Korea.
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Drought-tolerant and drought-sensitive genotypes of maize (Zea mays L.) differ in contents of endogenous brassinosteroids and their drought-induced changes. PLoS One 2018; 13:e0197870. [PMID: 29795656 PMCID: PMC5967837 DOI: 10.1371/journal.pone.0197870] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 05/09/2018] [Indexed: 01/24/2023] Open
Abstract
The contents of endogenous brassinosteroids (BRs) together with various aspects of plant morphology, water management, photosynthesis and protection against cell damage were assessed in two maize genotypes that differed in their drought sensitivity. The presence of 28-norbrassinolide in rather high quantities (1-2 pg mg-1 fresh mass) in the leaves of monocot plants is reported for the first time. The intraspecific variability in the presence/content of the individual BRs in drought-stressed plants is also described for the first time. The drought-resistant genotype was characterised by a significantly higher content of total endogenous BRs (particularly typhasterol and 28-norbrassinolide) compared with the drought-sensitive genotype. On the other hand, the drought-sensitive genotype showed higher levels of 28-norcastasterone. Both genotypes also differed in the drought-induced reduction/elevation of the levels of 28-norbrassinolide, 28-norcastasterone, 28-homocastasterone and 28-homodolichosterone. The differences observed between both genotypes in the endogenous BR content are probably correlated with their different degrees of drought sensitivity, which was demonstrated at various levels of plant morphology, physiology and biochemistry.
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Kohli SK, Handa N, Sharma A, Gautam V, Arora S, Bhardwaj R, Wijaya L, Alyemeni MN, Ahmad P. Interaction of 24-epibrassinolide and salicylic acid regulates pigment contents, antioxidative defense responses, and gene expression in Brassica juncea L. seedlings under Pb stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:15159-15173. [PMID: 29560590 DOI: 10.1007/s11356-018-1742-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 03/13/2018] [Indexed: 05/03/2023]
Abstract
Lead (Pb) is considered one the most hazardous pollutant, and its accumulation in soil and plants is of prime concern. To understand the role of plant hormones in combating heavy metal stress, the present study was planned to assess the interactive effects of 24-epibrassinolide (EBL) (10-7 M) and salicylic acid (SA) (1 mM) in regulating growth, pigment contents, antioxidative defense response, and gene expression in Brassica juncea L. seedlings exposed to different concentrations of Pb metal (0.25, 0.50, and 0.75 mM). Reduction in root and shoot lengths, chlorophyll and carotenoid content, and non-enzymatic antioxidants like glutathione, ascorbic acid, and tocopherol in response to Pb toxicity was observed. The enzymatic antioxidants such as guaiacol peroxidase (POD), ascorbate peroxidase (APOX), glutathione peroxidase (GR), dehydroascorbate reductase (DHAR), monodehydroascorbate redductase (MDHAR), glutathione-S-transferease (GST), and glutathione peroxidase (GPOX) were lowered in response to Pb treatments. Other antioxidative enzymes including superoxide dismutase (SOD), catalase (CAT), and polyphenol oxidase (PPO) enhanced under metal stress. Co-application of EBL + SA to 0.75 mM Pb-treated seedlings resulted in improvement of root and shoot lengths, chlorophyll, and carotenoid contents. Similarly, glutathione, ascorbic acid, and tocopherol contents were also elevated. Enzymatic antioxidants were also significantly enhanced in response to pre-sowing combined treatment of both hormones. Gene expression analysis suggested elevation in expression of CAT, POD, GR, DHAR, and GST genes by application of EBL. Our results reveal that Pb metal toxicity caused adverse impact on B. juncea L. seedlings, but pre-soaking treatment with EBL and SA individually and in combination help seedlings to counter the ill effects of Pb by improving growth, contents of pigment, and modulation of antioxidative defense system. The combined application of EBL and SA was found to be more effective in ameliorating Pb stress as compared to their individual treatments.
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Affiliation(s)
- Sukhmeen Kaur Kohli
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Neha Handa
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Anket Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
- Department of Botany, DAV University, Sarmastpur, Jalandhar, 144012, India
| | - Vandana Gautam
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Saroj Arora
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India.
| | - Leonard Wijaya
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohammed Nasser Alyemeni
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Parvaiz Ahmad
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
- Department of Botany, S.P. College, Srinagar, Jammu and Kashmir, 190001, India.
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Tian Y, Fan M, Qin Z, Lv H, Wang M, Zhang Z, Zhou W, Zhao N, Li X, Han C, Ding Z, Wang W, Wang ZY, Bai MY. Hydrogen peroxide positively regulates brassinosteroid signaling through oxidation of the BRASSINAZOLE-RESISTANT1 transcription factor. Nat Commun 2018. [PMID: 29540799 PMCID: PMC5852159 DOI: 10.1038/s41467-018-03463-x] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Hydrogen peroxide (H2O2) is an important signaling molecule in plant developmental processes and stress responses. However, whether H2O2-mediated signaling crosstalks with plant hormone signaling is largely unclear. Here, we show that H2O2 induces the oxidation of the BRASSINAZOLE-RESISTANT1 (BZR1) transcription factor, which functions as a master regulator of brassinosteroid (BR) signaling. Oxidative modification enhances BZR1 transcriptional activity by promoting its interaction with key regulators in the auxin-signaling and light-signaling pathways, including AUXIN RESPONSE FACTOR6 (ARF6) and PHYTOCHROME INTERACTING FACTOR4 (PIF4). Genome-wide analysis shows that H2O2-dependent regulation of BZR1 activity plays a major role in modifying gene expression related to several BR-mediated biological processes. Furthermore, we show that the thioredoxin TRXh5 can interact with BZR1 and catalyzes its reduction. We conclude that reversible oxidation of BZR1 connects H2O2-mediated and thioredoxin-mediated redox signaling to BR signaling to regulate plant development. Hydrogen peroxide and brassinosteroids (BR) both regulate plant development and stress responses. Here Tian et al. show that hydrogen peroxide can trigger oxidation of the BR-responsive BZR1 transcription factor and promote its transcriptional activity, thereby linking BR and redox signaling.
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Affiliation(s)
- Yanchen Tian
- Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Jinan, China
| | - Min Fan
- Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Jinan, China
| | - Zhaoxia Qin
- Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Jinan, China
| | - Hongjun Lv
- Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Jinan, China
| | - Minmin Wang
- Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Jinan, China
| | - Zhe Zhang
- Basic Forestry and Proteomics Research Center, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Wenying Zhou
- Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Jinan, China
| | - Na Zhao
- Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Jinan, China
| | - Xiaohui Li
- Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Jinan, China
| | - Chao Han
- Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Jinan, China
| | - Zhaojun Ding
- Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Jinan, China
| | - Wenfei Wang
- Basic Forestry and Proteomics Research Center, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zhi-Yong Wang
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, USA
| | - Ming-Yi Bai
- Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Jinan, China.
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Zhang Y, Li Y, He Y, Hu W, Zhang Y, Wang X, Tang H. Identification of NADPH oxidase family members associated with cold stress in strawberry. FEBS Open Bio 2018; 8:593-605. [PMID: 29632812 PMCID: PMC5881550 DOI: 10.1002/2211-5463.12393] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 11/29/2017] [Accepted: 01/17/2018] [Indexed: 01/07/2023] Open
Abstract
NADPH oxidase is encoded by a small gene family (Respiratory burst oxidase homologs, Rbohs) and plays an important role in regulating various biological processes. However, little information about this gene family is currently available for strawberry. In this study, a total of seven Rboh genes were identified from strawberry through genomewide analysis. Gene structure analysis showed the number of exons ranged from 10 to 23, implying that this variation occurred in FvRboh genes by the insertion and distribution of introns; the order and approximate size of exons were relatively conserved. FvRbohC was predicted to localize to the thylakoid membrane of the chloroplast, while other members were computed to localize to the plasma membrane, indicating different functions. Amino acid sequence alignment, conserved domain, and motif analysis showed that all identified FvRbohs had typical features of plant Rbohs. Phylogenetic analysis of Rbohs from strawberry, grape, Arabidopsis, and rice suggested that the FvRbohs could be divided into five subgroups and showed a closer relationship with those from grape and Arabidopsis than those from rice. The expression patterns of FvRboh genes in root, stem, leaf, flower, and fruit revealed robust tissue specificity. The expression levels of FvRbohA and FvRbohD were quickly induced by cold stress, followed by an increase in NADPH oxidase activity, leading to O2− accumulation and triggering the antioxidant reaction by the transient increases in SOD activity. This suggested these two genes may be involved in cold stress and defense responses in strawberry.
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Affiliation(s)
- Yunting Zhang
- College of Horticulture Sichuan Agricultural University Chengdu China
| | - Yali Li
- College of Horticulture Sichuan Agricultural University Chengdu China
| | - Yuwei He
- College of Horticulture Sichuan Agricultural University Chengdu China
| | - Wenjie Hu
- College of Horticulture Sichuan Agricultural University Chengdu China
| | - Yong Zhang
- College of Horticulture Sichuan Agricultural University Chengdu China
| | - Xiaorong Wang
- College of Horticulture Sichuan Agricultural University Chengdu China.,Institute of Pomology and Olericulture Sichuan Agricultural University Chengdu China
| | - Haoru Tang
- College of Horticulture Sichuan Agricultural University Chengdu China
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Modifications of morphological and anatomical characteristics of plants by application of brassinosteroids under various abiotic stress conditions - A review. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.plgene.2017.06.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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