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Ayaz A, Jalal A, Qian Z, Khan KA, Liu L, Hu C, Li Y, Hou X. Investigating the effects of tauroursodeoxycholic acid (TUDCA) in mitigating endoplasmic reticulum stress and cellular responses in Pak choi. PHYSIOLOGIA PLANTARUM 2024; 176:e14246. [PMID: 38467573 DOI: 10.1111/ppl.14246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/20/2024] [Accepted: 02/28/2024] [Indexed: 03/13/2024]
Abstract
The accumulation of misfolded proteins in the endoplasmic reticulum (ER) within plant cells due to unfavourable conditions leads to ER stress. This activates interconnected pathways involving reactive oxygen species (ROS) and unfolded protein response (UPR), which play vital roles in regulating ER stress. The aim of this study is to investigate the underlying mechanisms of tunicamycin (TM) induced ER stress and explore the potential therapeutic applications of tauroursodeoxycholic acid (TUDCA) in mitigating cellular responses to ER stress in Pak choi (Brassica campestris subsp. chinensis). The study revealed that ER stress in Pak choi leads to detrimental effects on plant morphology, ROS levels, cellular membrane integrity, and the antioxidant defence system. However, treatment with TUDCA in TM-induced ER stressed Pak choi improved morphological indices, pigment contents, ROS accumulation, cellular membrane integrity, and antioxidant defence system restoration. Additionally, TUDCA also modulates the transcription levels of ER stress sensors genes, ER chaperone genes, and ER-associated degradation (ERAD) genes during ER stress in Pak choi. Furthermore, TUDCA has demonstrated its ability to alleviate ER stress, stabilize the UPR, reduce oxidative stress, prevent apoptosis, and positively influence plant growth and development. These results collectively comprehend TUDCA as a promising agent for mitigating ER stress-induced damage in Pak choi plants and provide valuable insights for further research and potential applications in crop protection and stress management.
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Affiliation(s)
- Aliya Ayaz
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/ National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Abdul Jalal
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Zhou Qian
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/ National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Khalid Ali Khan
- Applied College, Mahala Campus and the Unit of Bee Research and Honey Production/Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
| | - Liwang Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/ National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Chunmei Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/ National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Ying Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/ National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Xilin Hou
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/ National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing, China
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Cavalcante FLP, da Silva SJ, de Sousa Lopes L, de Oliveira Paula-Marinho S, Guedes MIF, Gomes-Filho E, de Carvalho HH. Unveiling a differential metabolite modulation of sorghum varieties under increasing tunicamycin-induced endoplasmic reticulum stress. Cell Stress Chaperones 2023; 28:889-907. [PMID: 37775652 PMCID: PMC10746676 DOI: 10.1007/s12192-023-01382-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 06/28/2023] [Accepted: 09/11/2023] [Indexed: 10/01/2023] Open
Abstract
Plants trigger endoplasmic reticulum (ER) pathways to survive stresses, but the assistance of ER in plant tolerance still needs to be explored. Thus, we selected sensitive and tolerant contrasting abiotic stress sorghum varieties to test if they present a degree of tolerance to ER stress. Accordingly, this work evaluated crescent concentrations of tunicamycin (TM µg mL-1): control (0), lower (0.5), mild (1.5), and higher (2.5) on the initial establishment of sorghum seedlings CSF18 and CSF20. ER stress promoted growth and metabolism reductions, mainly in CSF18, from mild to higher TM. The lowest TM increased SbBiP and SbPDI chaperones, as well as SbbZIP60, and SbbIRE1 gene expressions, but mild and higher TM decreased it. However, CSF20 exhibited higher levels of SbBiP and SbbIRE1 transcripts. It corroborated different metabolic profiles among all TM treatments in CSF18 shoots and similarities between profiles of mild and higher TM in CSF18 roots. Conversely, TM profiles of both shoots and roots of CSF20 overlapped, although it was not complete under low TM treatment. Furthermore, ER stress induced an increase of carbohydrates (dihydroxyacetone in shoots, and cellobiose, maltose, ribose, and sucrose in roots), and organic acids (pyruvic acid in shoots, and butyric and succinic acids in roots) in CSF20, which exhibited a higher degree of ER stress tolerance compared to CSF18 with the root being the most affected plant tissue. Thus, our study provides new insights that may help to understand sorghum tolerance and the ER disturbance as significant contributor for stress adaptation and tolerance engineering.
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Affiliation(s)
| | - Sávio Justino da Silva
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, CEP-60440-554, Brazil
| | - Lineker de Sousa Lopes
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, CEP-60440-554, Brazil
| | | | - Maria Izabel Florindo Guedes
- Biotechnology and Molecular Biology Laboratory, State University of Ceará (UECE), Av. Dr. Silas Munguba, 1700, Fortaleza, CE, 60714-903, Brazil
| | - Enéas Gomes-Filho
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, CEP-60440-554, Brazil
| | - Humberto Henrique de Carvalho
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, CEP-60440-554, Brazil.
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Yoshitake Y, Shinozaki D, Yoshimoto K. Autophagy triggered by iron-mediated ER stress is an important stress response to the early phase of Pi starvation in plants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 110:1370-1381. [PMID: 35306710 DOI: 10.1111/tpj.15743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
Inorganic phosphate (Pi) is essential for plant growth. However, Pi is often limiting in soil. Hence, plants have established several mechanisms of response to Pi starvation. One of the important mechanisms is Pi recycling, which includes membrane lipid remodeling and plastid DNA degradation via catabolic enzymes. However, the involvement of other degradation systems in Pi recycling remains unclear. Autophagy, a system for degradation of intracellular components, contributes to recycling of some nutrients, such as nitrogen, carbon, and zinc, under starvation. In the present study, we found that autophagy-deficient mutants depleted Pi early and exhibited severe leaf growth defects under Pi starvation. The main cargo of autophagy induced by early Pi depleted conditions was the endoplasmic reticulum (ER), indicating that ER-phagy, a type of autophagy that selectively degrades the ER, is involved in the response to the early phase of Pi starvation for contribution to Pi recycling. This ER-phagy was suppressed in an INOSITOL-REQUIRING ENZYME 1 double mutant, ire1a ire1b, in which ER stress responses are defective, suggesting that the early Pi starvation induced ER-phagy is induced by ER stress. Furthermore, iron limitation and inhibition of lipid-reactive oxygen species accumulation suppressed the ER-phagy. Interestingly, membrane lipid remodeling, a response to late Pi starvation, was accelerated in the ire1a ire1b under early Pi-depleted conditions. Our findings reveal the existence of two different phases of responses to Pi starvation (i.e. early and late) and indicate that ER stress-mediated ER-phagy is involved in Pi recycling in the early phase to suppress acceleration of the late phase.
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Affiliation(s)
- Yushi Yoshitake
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1, Tama-ku, Kawasaki-shi, Kanagawa, 214-8571, Japan
| | - Daiki Shinozaki
- Life Science Program, Graduate School of Agriculture, Meiji University, 1-1-1, Tama-ku, Kawasaki-shi, Kanagawa, 214-8571, Japan
| | - Kohki Yoshimoto
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1, Tama-ku, Kawasaki-shi, Kanagawa, 214-8571, Japan
- Life Science Program, Graduate School of Agriculture, Meiji University, 1-1-1, Tama-ku, Kawasaki-shi, Kanagawa, 214-8571, Japan
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Endoplasmic Reticulum Stress and Unfolded Protein Response Signaling in Plants. Int J Mol Sci 2022; 23:ijms23020828. [PMID: 35055014 PMCID: PMC8775474 DOI: 10.3390/ijms23020828] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/07/2022] [Accepted: 01/11/2022] [Indexed: 02/01/2023] Open
Abstract
Plants are sensitive to a variety of stresses that cause various diseases throughout their life cycle. However, they have the ability to cope with these stresses using different defense mechanisms. The endoplasmic reticulum (ER) is an important subcellular organelle, primarily recognized as a checkpoint for protein folding. It plays an essential role in ensuring the proper folding and maturation of newly secreted and transmembrane proteins. Different processes are activated when around one-third of newly synthesized proteins enter the ER in the eukaryote cells, such as glycosylation, folding, and/or the assembling of these proteins into protein complexes. However, protein folding in the ER is an error-prone process whereby various stresses easily interfere, leading to the accumulation of unfolded/misfolded proteins and causing ER stress. The unfolded protein response (UPR) is a process that involves sensing ER stress. Many strategies have been developed to reduce ER stress, such as UPR, ER-associated degradation (ERAD), and autophagy. Here, we discuss the ER, ER stress, UPR signaling and various strategies for reducing ER stress in plants. In addition, the UPR signaling in plant development and different stresses have been discussed.
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Qiao F, Yang X, Xu F, Huang Y, Zhang J, Song M, Zhou S, Zhang M, He D. TMT-based quantitative proteomic analysis reveals defense mechanism of wheat against the crown rot pathogen Fusarium pseudograminearum. BMC PLANT BIOLOGY 2021; 21:82. [PMID: 33557748 PMCID: PMC7869478 DOI: 10.1186/s12870-021-02853-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 01/24/2021] [Indexed: 05/24/2023]
Abstract
BACKGROUND Fusarium crown rot is major disease in wheat. However, the wheat defense mechanisms against this disease remain poorly understood. RESULTS Using tandem mass tag (TMT) quantitative proteomics, we evaluated a disease-susceptible (UC1110) and a disease-tolerant (PI610750) wheat cultivar inoculated with Fusarium pseudograminearum WZ-8A. The morphological and physiological results showed that the average root diameter and malondialdehyde content in the roots of PI610750 decreased 3 days post-inoculation (dpi), while the average number of root tips increased. Root vigor was significantly increased in both cultivars, indicating that the morphological, physiological, and biochemical responses of the roots to disease differed between the two cultivars. TMT analysis showed that 366 differentially expressed proteins (DEPs) were identified by Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment in the two comparison groups, UC1110_3dpi/UC1110_0dpi (163) and PI610750_3dpi/PI610750_0dpi (203). It may be concluded that phenylpropanoid biosynthesis (8), secondary metabolite biosynthesis (12), linolenic acid metabolites (5), glutathione metabolism (8), plant hormone signal transduction (3), MAPK signaling pathway-plant (4), and photosynthesis (12) contributed to the defense mechanisms in wheat. Protein-protein interaction network analysis showed that the DEPs interacted in both sugar metabolism and photosynthesis pathways. Sixteen genes were validated by real-time quantitative polymerase chain reaction and were found to be consistent with the proteomics data. CONCLUSION The results provided insight into the molecular mechanisms of the interaction between wheat and F. pseudograminearum.
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Affiliation(s)
- Fangfang Qiao
- College of Agronomy, Henan Agricultural University/ National Engineering Research Center for Wheat/ Co-construction State Key Laboratory of Wheat and Maize Crop Science/ Collaborative Innovation Center of Henan Grain Crops, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Xiwen Yang
- College of Agronomy, Henan Agricultural University/ National Engineering Research Center for Wheat/ Co-construction State Key Laboratory of Wheat and Maize Crop Science/ Collaborative Innovation Center of Henan Grain Crops, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Fengdan Xu
- College of Agronomy, Henan Agricultural University/ National Engineering Research Center for Wheat/ Co-construction State Key Laboratory of Wheat and Maize Crop Science/ Collaborative Innovation Center of Henan Grain Crops, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Yuan Huang
- College of Agronomy, Henan Agricultural University/ National Engineering Research Center for Wheat/ Co-construction State Key Laboratory of Wheat and Maize Crop Science/ Collaborative Innovation Center of Henan Grain Crops, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Jiemei Zhang
- College of Agronomy, Henan Agricultural University/ National Engineering Research Center for Wheat/ Co-construction State Key Laboratory of Wheat and Maize Crop Science/ Collaborative Innovation Center of Henan Grain Crops, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Miao Song
- College of Agronomy, Henan Agricultural University/ National Engineering Research Center for Wheat/ Co-construction State Key Laboratory of Wheat and Maize Crop Science/ Collaborative Innovation Center of Henan Grain Crops, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Sumei Zhou
- College of Agronomy, Henan Agricultural University/ National Engineering Research Center for Wheat/ Co-construction State Key Laboratory of Wheat and Maize Crop Science/ Collaborative Innovation Center of Henan Grain Crops, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Meng Zhang
- College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
| | - Dexian He
- College of Agronomy, Henan Agricultural University/ National Engineering Research Center for Wheat/ Co-construction State Key Laboratory of Wheat and Maize Crop Science/ Collaborative Innovation Center of Henan Grain Crops, 15 Longzihu College District, Zhengzhou, 450046, China.
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Liu J, Magwanga RO, Xu Y, Wei T, Kirungu JN, Zheng J, Hou Y, Wang Y, Agong SG, Okuto E, Wang K, Zhou Z, Cai X, Liu F. Functional Characterization of Cotton C-Repeat Binding Factor Genes Reveal Their Potential Role in Cold Stress Tolerance. FRONTIERS IN PLANT SCIENCE 2021; 12:766130. [PMID: 34956264 PMCID: PMC8692369 DOI: 10.3389/fpls.2021.766130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 11/04/2021] [Indexed: 05/13/2023]
Abstract
Low temperature is a common biological abiotic stress in major cotton-growing areas. Cold stress significantly affects the growth, yield, and yield quality of cotton. Therefore, it is important to develop more robust and cold stress-resilient cotton germplasms. In response to climate change and erratic weather conditions, plants have evolved various survival mechanisms, one of which involves the induction of various stress responsive transcript factors, of which the C-repeat-binding factors (CBFs) have a positive effect in enhancing plants response to cold stress. In this study, genomewide identification and functional characterization of the cotton CBFs were carried out. A total of 29, 28, 25, 21, 30, 26, and 15 proteins encoded by the CBF genes were identified in seven Gossypium species. A phylogenetic evaluation revealed seven clades, with Clades 1 and 6 being the largest. Moreover, the majority of the proteins encoded by the genes were predicted to be located within the nucleus, while some were distributed in other parts of the cell. Based on the transcriptome and RT-qPCR analysis, Gthu17439 (GthCBF4) was highly upregulated and was further validated through forward genetics. The Gthu17439 (GthCBF4) overexpressed plants exhibited significantly higher tolerance to cold stress, as evidenced by the higher germination rate, increased root growth, and high-induction levels of stress-responsive genes. Furthermore, the overexpressed plants under cold stress had significantly reduced oxidative damage due to a reduction in hydrogen peroxide (H2O2) production. Moreover, the overexpressed plants under cold stress had minimal cell damage compared to the wild types, as evidenced by the Trypan and 3,3'-Diaminobenzidine (DAB) staining effect. The results showed that the Gthu17439 (GthCBF4) could be playing a significant role in enhancing cold stress tolerance in cotton and can be further exploited in developing cotton germplasm with improved cold-stress tolerance.
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Affiliation(s)
- Jiangna Liu
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
- School of Agricultural Sciences, Zhengzhou University (SBPMAS), Zhengzhou, China
| | - Richard Odongo Magwanga
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
- School of Biological, Physical, Mathematics and Actuarial Sciences, Jaramogi Oginga Odinga University of Science and Technology (JOOUST), Bondo, Kenya
| | - Yanchao Xu
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
| | - Tingting Wei
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
| | - Joy Nyangasi Kirungu
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
- School of Agricultural Sciences, Zhengzhou University (SBPMAS), Zhengzhou, China
| | - Jie Zheng
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
| | - Yuqing Hou
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
| | - Yuhong Wang
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
| | - Stephen Gaya Agong
- School of Biological, Physical, Mathematics and Actuarial Sciences, Jaramogi Oginga Odinga University of Science and Technology (JOOUST), Bondo, Kenya
| | - Erick Okuto
- School of Biological, Physical, Mathematics and Actuarial Sciences, Jaramogi Oginga Odinga University of Science and Technology (JOOUST), Bondo, Kenya
| | - Kunbo Wang
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
| | - Zhongli Zhou
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
- *Correspondence: Zhongli Zhou,
| | - Xiaoyan Cai
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
- Xiaoyan Cai,
| | - Fang Liu
- Chinese Academy of Agricultural Sciences (ICR, CAAS)/State Key Laboratory of Cotton Biology, Institute of Cotton Research, Anyang, China
- School of Agricultural Sciences, Zhengzhou University (SBPMAS), Zhengzhou, China
- Fang Liu,
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Neubauer M, Innes RW. Loss of the Acetyltransferase NAA50 Induces Endoplasmic Reticulum Stress and Immune Responses and Suppresses Growth. PLANT PHYSIOLOGY 2020; 183:1838-1854. [PMID: 32457093 PMCID: PMC7401112 DOI: 10.1104/pp.20.00225] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/19/2020] [Indexed: 05/15/2023]
Abstract
Stress signaling in plants is carefully regulated to ensure proper development and reproductive fitness. Overactive defense signaling can result in dwarfism as well as developmental defects. In addition to requiring a substantial amount of energy, plant stress responses place a burden upon the cellular machinery, which can result in the accumulation of misfolded proteins and endoplasmic reticulum (ER) stress. Negative regulators of stress signaling, such as ENHANCED DISEASE RESISTANCE 1 (EDR1), ensure that stress responses are properly suspended when they are not needed, thereby conserving energy for growth and development. Here, we describe the role of an uncharacterized N-terminal acetyltransferase, NAA50, in the regulation of plant development and stress responses in Arabidopsis (Arabidopsis thaliana). Our results demonstrate that NAA50, an interactor of EDR1, plays an important role in regulating the tradeoff between plant growth and defense. Plants lacking NAA50 display severe developmental defects as well as induced stress responses. Reduction of NAA50 expression results in arrested stem and root growth as well as senescence. Furthermore, our results demonstrate that the loss of NAA50 results in constitutive ER stress signaling, indicating that NAA50 may be required for the suppression of ER stress. This work establishes NAA50 as essential for plant development and the suppression of stress responses, potentially through the regulation of ER stress.
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Affiliation(s)
- Matthew Neubauer
- Department of Biology, Indiana University, Bloomington, Indiana 47405
| | - Roger W Innes
- Department of Biology, Indiana University, Bloomington, Indiana 47405
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Chen Z, Xu J, Wang F, Wang L, Xu Z. Morpho-physiological and proteomic responses to water stress in two contrasting tobacco varieties. Sci Rep 2019; 9:18523. [PMID: 31811189 PMCID: PMC6898209 DOI: 10.1038/s41598-019-54995-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/20/2019] [Indexed: 02/08/2023] Open
Abstract
To gain insight into the molecular mechanisms underpinning tobacco (Nicotiana tabacum) tolerance to drought stress, we integrated anatomical, physiological, and proteomic analyses of drought-tolerant (Yuyan6, [Y6]) and -sensitive (Yunyan87 [Y87]) varieties. In comparison to Y87, Y6 exhibited higher water retention capability, improved photosynthetic performance, delayed leaf-senescence, stable leaf ultrastructure, a stronger antioxidant defense, and lesser ROS accumulation when subjected to water stress. Using an iTRAQ-based proteomics approach, 405 and 1,560 differentially accumulated proteins (DAPs) were identified from Y6 and Y87 plants, respectively, of which 114 were found to be present in both cultivars. A subsequent functional characterization analysis revealed that these DAPs were significantly enriched in eight biological processes, six molecular functions, and six cellular components and displayed differential expression patterns in Y6 and Y87 plants, suggesting that the response to water stress between both varieties differed at the proteomic level. Furthermore, we constructed protein coexpression networks and identified hub proteins regulating tobacco defenses to water stress. Additionally, qPCR analysis indicated that the majority of genes encoding selected proteins showed consistency between mRNA levels and their corresponding protein expression levels. Our results provide new insights into the genetic regulatory mechanisms associated with drought response in tobacco plants.
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Affiliation(s)
- Zheng Chen
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Jiayang Xu
- Agronomy and Biotechnology College, China Agricultural University, Beijing, 100193, China
| | - Fazhan Wang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Lin Wang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Zicheng Xu
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China.
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Yu X, Wang T, Zhu M, Zhang L, Zhang F, Jing E, Ren Y, Wang Z, Xin Z, Lin T. Transcriptome and physiological analyses for revealing genes involved in wheat response to endoplasmic reticulum stress. BMC PLANT BIOLOGY 2019; 19:193. [PMID: 31072347 PMCID: PMC6509841 DOI: 10.1186/s12870-019-1798-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 04/25/2019] [Indexed: 05/07/2023]
Abstract
BACKGROUND Wheat production is largely restricted by adverse environmental stresses. Under many undesirable conditions, endoplasmic reticulum (ER) stress can be induced. However, the physiological and molecular responses of wheat to ER stress remain poorly understood. We used dithiothreitol (DTT) and tauroursodeoxycholic acid (TUDCA) to induce or suppress ER stress in wheat cells, respectively, with the aim to reveal the molecular background of ER stress responses using a combined approach of transcriptional profiling and morpho-physiological characterization. METHODS To understand the mechanism of wheat response to ER stress, three wheat cultivars were used in our pre-experiments. Among them, the cultivar with a moderate stress tolerance, Yunong211 was used in the following experiments. We used DTT (7.5 mM) to induce ER stress and TUDCA (25 μg·mL- 1) to suppress the stress. Under three treatment groups (Control, DTT and DTT + TUDCA), we firstly monitored the morphological, physiological and cytological changes of wheat seedlings. Then we collected leaf samples from each group for RNA extraction, library construction and RNA sequencing on an Illumina Hiseq platform. The sequencing data was then validated by qRT-PCR. RESULTS Morpho-physiological results showed DTT significantly reduced plant height and biomass, decreased contents of chlorophyll and water, increased electrolyte leakage rate and antioxidant enzymes activity, and accelerated the cell death ratio, whereas these changes were all remarkably alleviated after TUDCA co-treatment. Therefore, RNA sequencing was performed to determine the genes involved in regulating wheat response to stress. Transcriptomic analysis revealed that 8204 genes were differentially expressed in three treatment groups. Among these genes, 158 photosynthesis-related genes, 42 antioxidant enzyme genes, 318 plant hormone-related genes and 457 transcription factors (TFs) may play vital roles in regulating wheat response to ER stress. Based on the comprehensive analysis, we propose a hypothetical model to elucidate possible mechanisms of how plants adapt to environmental stresses. CONCLUSIONS We identified several important genes that may play vital roles in wheat responding to ER stress. This work should lay the foundations of future studies in plant response to environmental stresses.
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Affiliation(s)
- Xing Yu
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Tanchun Wang
- Department of Basic Biomedical Sciences, Touro College of Osteopathic Medicine – Middletown, NY, USA
| | - Meichen Zhu
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Liting Zhang
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Fengzhi Zhang
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Enen Jing
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Yongzhe Ren
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Zhiqiang Wang
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Zeyu Xin
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Tongbao Lin
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
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Park CJ, Park JM. Endoplasmic Reticulum Plays a Critical Role in Integrating Signals Generated by Both Biotic and Abiotic Stress in Plants. FRONTIERS IN PLANT SCIENCE 2019; 10:399. [PMID: 31019523 PMCID: PMC6458287 DOI: 10.3389/fpls.2019.00399] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/15/2019] [Indexed: 05/19/2023]
Abstract
Most studies of environmental adaptations in plants have focused on either biotic or abiotic stress factors in an attempt to understand the defense mechanisms of plants against individual stresses. However, in the natural ecosystem, plants are simultaneously exposed to multiple stresses. Stress-tolerant crops developed in translational studies based on a single stress often fail to exhibit the expected traits in the field. To adapt to abiotic stress, recent studies have identified the need for interactions of plants with various microorganisms. These findings highlight the need to understand the multifaceted interactions of plants with biotic and abiotic stress factors. The endoplasmic reticulum (ER) is an organelle that links various stress responses. To gain insight into the molecular integration of biotic and abiotic stress responses in the ER, we focused on the interactions of plants with RNA viruses. This interaction points toward the relevance of ER in viral pathogenicity as well as plant responses. In this mini review, we explore the molecular crosstalk between biotic and abiotic stress signaling through the ER by elaborating ER-mediated signaling in response to RNA viruses and abiotic stresses. Additionally, we summarize the results of a recent study on phytohormones that induce ER-mediated stress response. These studies will facilitate the development of multi-stress-tolerant transgenic crops in the future.
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Affiliation(s)
- Chang-Jin Park
- Department of Bioresources Engineering, Sejong University, Seoul, South Korea
- Plant Engineering Research Institute, Sejong University, Seoul, South Korea
- *Correspondence: Chang-Jin Park,
| | - Jeong Mee Park
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
- Department of Biosystems and Bioengineering, University of Science and Technology (UST), Daejeon, South Korea
- Jeong Mee Park,
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