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Liang X, Li J, Yang Y, Jiang C, Guo Y. Designing salt stress-resilient crops: Current progress and future challenges. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:303-329. [PMID: 38108117 DOI: 10.1111/jipb.13599] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/10/2023] [Accepted: 12/15/2023] [Indexed: 12/19/2023]
Abstract
Excess soil salinity affects large regions of land and is a major hindrance to crop production worldwide. Therefore, understanding the molecular mechanisms of plant salt tolerance has scientific importance and practical significance. In recent decades, studies have characterized hundreds of genes associated with plant responses to salt stress in different plant species. These studies have substantially advanced our molecular and genetic understanding of salt tolerance in plants and have introduced an era of molecular design breeding of salt-tolerant crops. This review summarizes our current knowledge of plant salt tolerance, emphasizing advances in elucidating the molecular mechanisms of osmotic stress tolerance, salt-ion transport and compartmentalization, oxidative stress tolerance, alkaline stress tolerance, and the trade-off between growth and salt tolerance. We also examine recent advances in understanding natural variation in the salt tolerance of crops and discuss possible strategies and challenges for designing salt stress-resilient crops. We focus on the model plant Arabidopsis (Arabidopsis thaliana) and the four most-studied crops: rice (Oryza sativa), wheat (Triticum aestivum), maize (Zea mays), and soybean (Glycine max).
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Affiliation(s)
- Xiaoyan Liang
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100094, China
| | - Jianfang Li
- State Key Laboratory of Nutrient Use and Management, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100194, China
| | - Yongqing Yang
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100094, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100094, China
| | - Caifu Jiang
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100094, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100094, China
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100094, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100094, China
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
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Kanamori K, Nishimura K, Horie T, Sato MH, Kajino T, Koyama T, Ariga H, Tanaka K, Yotsui I, Sakata Y, Taji T. Golgi apparatus-localized CATION CALCIUM EXCHANGER4 promotes osmotolerance of Arabidopsis. PLANT PHYSIOLOGY 2024; 194:1166-1180. [PMID: 37878763 PMCID: PMC10828203 DOI: 10.1093/plphys/kiad571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/19/2023] [Accepted: 10/09/2023] [Indexed: 10/27/2023]
Abstract
Calcium (Ca2+) is a major ion in living organisms, where it acts as a second messenger for various biological phenomena. The Golgi apparatus retains a higher Ca2+ concentration than the cytosol and returns cytosolic Ca2+ to basal levels after transient elevation in response to environmental stimuli such as osmotic stress. However, the Ca2+ transporters localized in the Golgi apparatus of plants have not been clarified. We previously found that a wild-type (WT) salt-tolerant Arabidopsis (Arabidopsis thaliana) accession, Bu-5, showed osmotic tolerance after salt acclimatization, whereas the Col-0 WT did not. Here, we isolated a Bu-5 background mutant gene, acquired osmotolerance-defective 6 (aod6), which reduces tolerance to osmotic, salt, and oxidative stresses, with a smaller plant size than the WT. The causal gene of the aod6 mutant encodes CATION CALCIUM EXCHANGER4 (CCX4). The aod6 mutant was more sensitive than the WT to both deficient and excessive Ca2+. In addition, aod6 accumulated higher Ca2+ than the WT in the shoots, suggesting that Ca2+ homeostasis is disturbed in aod6. CCX4 expression suppressed the Ca2+ hypersensitivity of the csg2 (calcium sensitive growth 2) yeast (Saccharomyces cerevisiae) mutant under excess CaCl2 conditions. We also found that aod6 enhanced MAP kinase 3/6 (MPK3/6)-mediated immune responses under osmotic stress. Subcellular localization analysis of mGFP-CCX4 showed GFP signals adjacent to the trans-Golgi apparatus network and co-localization with Golgi apparatus-localized markers, suggesting that CCX4 localizes in the Golgi apparatus. These results suggest that CCX4 is a Golgi apparatus-localized transporter involved in the Ca2+ response and plays important roles in osmotic tolerance, shoot Ca2+ content, and normal growth of Arabidopsis.
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Affiliation(s)
- Kazuki Kanamori
- Department of Bioscience, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Kohji Nishimura
- Department of Life Sciences, Faculty of Life and Environmental Sciences, Shimane University, Matsue 690-8504, Japan
| | - Tomoaki Horie
- Division of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, Nagano 386-8567, Japan
| | - Masa H Sato
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto 606-8522, Japan
| | - Takuma Kajino
- Department of Bioscience, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Takashi Koyama
- Department of Bioscience, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Hirotaka Ariga
- Department of Plant Sciences, Institute of Agrobiological Science, NARO, Ibaraki 305-8602, Japan
| | - Keisuke Tanaka
- NODAI Genome Center, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Izumi Yotsui
- Department of Bioscience, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Yoichi Sakata
- Department of Bioscience, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Teruaki Taji
- Department of Bioscience, Tokyo University of Agriculture, Tokyo 156-8502, Japan
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Zhou H, Shi H, Yang Y, Feng X, Chen X, Xiao F, Lin H, Guo Y. Insights into plant salt stress signaling and tolerance. J Genet Genomics 2024; 51:16-34. [PMID: 37647984 DOI: 10.1016/j.jgg.2023.08.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/01/2023]
Abstract
Soil salinization is an essential environmental stressor, threatening agricultural yield and ecological security worldwide. Saline soils accumulate excessive soluble salts which are detrimental to most plants by limiting plant growth and productivity. It is of great necessity for plants to efficiently deal with the adverse effects caused by salt stress for survival and successful reproduction. Multiple determinants of salt tolerance have been identified in plants, and the cellular and physiological mechanisms of plant salt response and adaption have been intensely characterized. Plants respond to salt stress signals and rapidly initiate signaling pathways to re-establish cellular homeostasis with adjusted growth and cellular metabolism. This review summarizes the advances in salt stress perception, signaling, and response in plants. A better understanding of plant salt resistance will contribute to improving crop performance under saline conditions using multiple engineering approaches. The rhizosphere microbiome-mediated plant salt tolerance as well as chemical priming for enhanced plant salt resistance are also discussed in this review.
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Affiliation(s)
- Huapeng Zhou
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China.
| | - Haifan Shi
- College of Grassland Science, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Yongqing Yang
- State Key Laboratory of Plant Environmental Resilience, China Agricultural University, Beijing 100193, China
| | - Xixian Feng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Xi Chen
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Fei Xiao
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, China
| | - Honghui Lin
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, China Agricultural University, Beijing 100193, China.
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Rodriguez Gallo MC, Li Q, Talasila M, Uhrig RG. Quantitative Time-Course Analysis of Osmotic and Salt Stress in Arabidopsis thaliana Using Short Gradient Multi-CV FAIMSpro BoxCar DIA. Mol Cell Proteomics 2023; 22:100638. [PMID: 37704098 PMCID: PMC10663867 DOI: 10.1016/j.mcpro.2023.100638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 08/22/2023] [Accepted: 08/27/2023] [Indexed: 09/15/2023] Open
Abstract
A major limitation when undertaking quantitative proteomic time-course experimentation is the tradeoff between depth-of-analysis and speed-of-analysis. In high complexity and high dynamic range sample types, such as plant extracts, balance between resolution and time is especially apparent. To address this, we evaluate multiple compensation voltage (CV) high field asymmetric waveform ion mobility spectrometry (FAIMSpro) settings using the latest label-free single-shot Orbitrap-based DIA acquisition workflows for their ability to deeply quantify the Arabidopsis thaliana seedling proteome. Using a BoxCarDIA acquisition workflow with a -30 -50 -70 CV FAIMSpro setting, we were able to consistently quantify >5000 Arabidopsis seedling proteins over a 21-min gradient, facilitating the analysis of ∼42 samples per day. Utilizing this acquisition approach, we then quantified proteome-level changes occurring in Arabidopsis seedling shoots and roots over 24 h of salt and osmotic stress, to identify early and late stress response proteins and reveal stress response overlaps. Here, we successfully quantify >6400 shoot and >8500 root protein groups, respectively, quantifying nearly ∼9700 unique protein groups in total across the study. Collectively, we pioneer a short gradient, multi-CV FAIMSpro BoxCarDIA acquisition workflow that represents an exciting new analysis approach for undertaking quantitative proteomic time-course experimentation in plants.
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Affiliation(s)
- M C Rodriguez Gallo
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Q Li
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - M Talasila
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - R G Uhrig
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada; Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada.
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Salinas-Cornejo J, Madrid-Espinoza J, Verdugo I, Norambuena L, Ruiz-Lara S. A SNARE-like protein from Solanum lycopersicum increases salt tolerance by modulating vesicular trafficking in tomato. FRONTIERS IN PLANT SCIENCE 2023; 14:1212806. [PMID: 37593042 PMCID: PMC10431929 DOI: 10.3389/fpls.2023.1212806] [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: 04/26/2023] [Accepted: 07/04/2023] [Indexed: 08/19/2023]
Abstract
Intracellular vesicular trafficking ensures the exchange of lipids and proteins between endomembrane compartments. This is relevant under high salinity conditions, since both the removal of transporters and ion channels from the plasma membrane and the compartmentalization of toxic ions require the formation of vesicles, which can be maintained as multivesicular bodies or be fused to the central vacuole. SNARE proteins (Soluble N-ethylmaleimide-sensitive factor attachment receptor) participate in the vesicle fusion process and give specificity to their destination. Plant genome studies have revealed a superfamily of genes that encode for proteins called SNARE-like. These proteins appear to be participating in vesicular trafficking with similar functions to those of SNARE proteins. A SNARE-like, named SlSLSP6, in Solanum lycopersicum plants has been shown to be induced under high salinity conditions. A phylogenetic relationship of SlSLSP6 with SNARE-like proteins of salinity-tolerant plants, including Salicornia brachiata, Zostera marina and Solanum pennelli, was determined. Considering its amino acid sequence, a putative clathrin adapter complex domain and palmitoylation site was predicted. Subcellular localization analysis evidenced that SlSLSP6 is mostly localized in the plasma membrane. Using transgenic tomato plants, we identified that overexpression of SlSLSP6 increased tolerance to salt stress. This tolerance was evident when we quantified an improvement in physiological and biochemical parameters, such as higher chlorophyll content, performance index, efficiency of photosystem II and relative water content, and lower malondialdehyde content, compared to control plants. At the subcellular level, the overexpression of SlSLSP6 reduced the presence of H2O2 in roots and increased the compartmentalization of sodium in vacuoles during salt stress. These effects appear to be associated with the higher endocytic rate of FM4-64, determined in the plant root cells. Taken together, these results indicate that SlSLSP6 increases tolerance to salt stress by modulating vesicular trafficking through over-induction of the endocytic pathway. This work contributes to understanding the role of this type of SNARE-like protein during salt stress and could be a potential candidate in breeding programs for tolerance to salt stress in tomato plants.
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Affiliation(s)
- Josselyn Salinas-Cornejo
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
| | - José Madrid-Espinoza
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
| | - Isabel Verdugo
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
| | - Lorena Norambuena
- Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Simón Ruiz-Lara
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
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Haro R, Lanza M, Aguilella M, Sanz-García E, Benito B. The transportome of the endophyte Serendipita indica in free life and symbiosis with Arabidopsis and its expression in moderate salinity. Front Microbiol 2023; 14:1191255. [PMID: 37405164 PMCID: PMC10315484 DOI: 10.3389/fmicb.2023.1191255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/29/2023] [Indexed: 07/06/2023] Open
Abstract
Serendipita indica is an endophytic root symbiont fungus that enhances the growth of various plants under different stress conditions, including salinity. Here, the functional characterization of two fungal Na+/H+ antiporters, SiNHA1 and SiNHX1 has been carried out to study their putative role in saline tolerance. Although their gene expression does not respond specifically to saline conditions, they could contribute, together with the previously characterized Na+ efflux systems SiENA1 and SiENA5, to relieve Na+ from the S. indica cytosol under this stressed condition. In parallel, an in-silico study has been carried out to define its complete transportome. To further investigate the repertoire of transporters expressed in free-living cells of S. indica and during plant infection under saline conditions, a comprehensive RNA-seq approach was taken. Interestingly, SiENA5 was the only gene significantly induced under free-living conditions in response to moderate salinity at all the tested time points, revealing that it is one of the main salt-responsive genes of S. indica. In addition, the symbiosis with Arabidopsis thaliana also induced SiENA5 gene expression, but significant changes were only detected after long periods of infection, indicating that the association with the plant somehow buffers and protects the fungus against the external stress. Moreover, the significant and strongest induction of the homologous gene SiENA1 occurred during symbiosis, regardless the exposure to salinity. The obtained results suggest a novel and relevant role of these two proteins during the establishment and maintenance of fungus-plant interaction.
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Affiliation(s)
- Rosario Haro
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
| | - Mónica Lanza
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
| | - Marcos Aguilella
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
| | - Eugenio Sanz-García
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
| | - Begoña Benito
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
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De K, Pal D, Shanks CM, Yates TB, Feng K, Jawdy SS, Hassan MM, Prabhakar PK, Yang JY, Chapla D, Moremen KW, Urbanowicz B, Binder BM, Muchero W. The Plasminogen-Apple-Nematode (PAN) domain suppresses JA/ET defense pathways in plants. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.15.545202. [PMID: 37398012 PMCID: PMC10312691 DOI: 10.1101/2023.06.15.545202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Suppression of immune response is a phenomenon that enables biological processes such as gamete fertilization, cell growth, cell proliferation, endophyte recruitment, parasitism, and pathogenesis. Here, we show for the first time that the Plasminogen-Apple-Nematode (PAN) domain present in G-type lectin receptor-like kinases is essential for immunosuppression in plants. Defense pathways involving jasmonic acid and ethylene are critical for plant immunity against microbes, necrotrophic pathogens, parasites, and insects. Using two Salix purpurea G-type lectin receptor kinases, we demonstrated that intact PAN domains suppress jasmonic acid and ethylene signaling in Arabidopsis and tobacco. Variants of the same receptors with mutated residues in this domain could trigger induction of both defense pathways. Assessment of signaling processes revealed significant differences between receptors with intact and mutated PAN domain in MAPK phosphorylation, global transcriptional reprogramming, induction of downstream signaling components, hormone biosynthesis and resistance to Botrytis cinerea . Further, we demonstrated that the domain is required for oligomerization, ubiquitination, and proteolytic degradation of these receptors. These processes were completely disrupted when conserved residues in the domain were mutated. Additionally, we have tested the hypothesis in recently characterized Arabidopsis mutant which has predicted PAN domain and negatively regulates plant immunity against root nematodes. ern1.1 mutant complemented with mutated PAN shows triggered immune response with elevated WRKY33 expression, hyperphosphorylation of MAPK and resistant to necrotrophic fungus Botrytis cinerea . Collectively, our results suggest that ubiquitination and proteolytic degradation mediated by the PAN domain plays a role in receptor turn-over to suppress jasmonic acid and ethylene defense signaling in plants.
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Zhang H, Zhou J, Kou X, Liu Y, Zhao X, Qin G, Wang M, Qian G, Li W, Huang Y, Wang X, Zhao Z, Li S, Wu X, Jiang L, Feng X, Zhu JK, Li L. Syntaxin of plants71 plays essential roles in plant development and stress response via regulating pH homeostasis. FRONTIERS IN PLANT SCIENCE 2023; 14:1198353. [PMID: 37342145 PMCID: PMC10277689 DOI: 10.3389/fpls.2023.1198353] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 05/02/2023] [Indexed: 06/22/2023]
Abstract
SYP71, a plant-specific Qc-SNARE with multiple subcellular localization, is essential for symbiotic nitrogen fixation in nodules in Lotus, and is implicated in plant resistance to pathogenesis in rice, wheat and soybean. Arabidopsis SYP71 is proposed to participate in multiple membrane fusion steps during secretion. To date, the molecular mechanism underlying SYP71 regulation on plant development remains elusive. In this study, we clarified that AtSYP71 is essential for plant development and stress response, using techniques of cell biology, molecular biology, biochemistry, genetics, and transcriptomics. AtSYP71-knockout mutant atsyp71-1 was lethal at early development stage due to the failure of root elongation and albinism of the leaves. AtSYP71-knockdown mutants, atsyp71-2 and atsyp71-3, had short roots, delayed early development, and altered stress response. The cell wall structure and components changed significantly in atsyp71-2 due to disrupted cell wall biosynthesis and dynamics. Reactive oxygen species homeostasis and pH homeostasis were also collapsed in atsyp71-2. All these defects were likely resulted from blocked secretion pathway in the mutants. Strikingly, change of pH value significantly affected ROS homeostasis in atsyp71-2, suggesting interconnection between ROS and pH homeostasis. Furthermore, we identified AtSYP71 partners and propose that AtSYP71 forms distinct SNARE complexes to mediate multiple membrane fusion steps in secretory pathway. Our findings suggest that AtSYP71 plays an essential role in plant development and stress response via regulating pH homeostasis through secretory pathway.
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Affiliation(s)
- Hailong Zhang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Jingwen Zhou
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Xiaoyue Kou
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Yuqi Liu
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Xiaonan Zhao
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
- Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Guochen Qin
- Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences, Peking University, Weifang, China
| | - Mingyu Wang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Guangtao Qian
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Wen Li
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Yongshun Huang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Xiaoting Wang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Zhenjie Zhao
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Shuang Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Xiaoqian Wu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Lixi Jiang
- Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Xianzhong Feng
- Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
| | - Jian-Kang Zhu
- Institute of Advanced Biotechnology and School of Life Sciences, Southern University of Science and Technology, Shenzhen, China
- Center for Advanced Bioindustry Technologies, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lixin Li
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
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Lu C, Peng Z, Liu Y, Li G, Wan S. Genome-Wide Analysis of the SNARE Family in Cultivated Peanut ( Arachis hypogaea L.) Reveals That Some Members Are Involved in Stress Responses. Int J Mol Sci 2023; 24:ijms24087103. [PMID: 37108265 PMCID: PMC10139436 DOI: 10.3390/ijms24087103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/31/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
The superfamily of soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) proteins mediates membrane fusion during vesicular transport between endosomes and the plasma membrane in eukaryotic cells, playing a vital role in plant development and responses to biotic and abiotic stresses. Peanut (Arachis hypogaea L.) is a major oilseed crop worldwide that produces pods below ground, which is rare in flowering plants. To date, however, there has been no systematic study of SNARE family proteins in peanut. In this study, we identified 129 putative SNARE genes from cultivated peanut (A. hypogaea) and 127 from wild peanut (63 from Arachis duranensis, 64 from Arachis ipaensis). We sorted the encoded proteins into five subgroups (Qa-, Qb-, Qc-, Qb+c- and R-SNARE) based on their phylogenetic relationships with Arabidopsis SNAREs. The genes were unevenly distributed on all 20 chromosomes, exhibiting a high rate of homolog retention from their two ancestors. We identified cis-acting elements associated with development, biotic and abiotic stresses in the promoters of peanut SNARE genes. Transcriptomic data showed that expression of SNARE genes is tissue-specific and stress inducible. We hypothesize that AhVTI13b plays an important role in the storage of lipid proteins, while AhSYP122a, AhSNAP33a and AhVAMP721a might play an important role in development and stress responses. Furthermore, we showed that three AhSNARE genes (AhSYP122a, AhSNAP33a and AhVAMP721) enhance cold and NaCl tolerance in yeast (Saccharomyces cerevisiae), especially AhSNAP33a. This systematic study provides valuable information about the functional characteristics of AhSNARE genes in the development and regulation of abiotic stress responses in peanut.
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Affiliation(s)
- Chaoxia Lu
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Zhenying Peng
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Yiyang Liu
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Guowei Li
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Shubo Wan
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Shandong Academy of Agricultural Sciences, Jinan 250100, China
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Wang M, Zhang H, Zhao X, Zhou J, Qin G, Liu Y, Kou X, Zhao Z, Wu T, Zhu JK, Feng X, Li L. SYNTAXIN OF PLANTS81 regulates root meristem activity and stem cell niche maintenance via ROS signaling. PLANT PHYSIOLOGY 2023; 191:1365-1382. [PMID: 36427205 PMCID: PMC9922426 DOI: 10.1093/plphys/kiac530] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 11/21/2022] [Indexed: 06/16/2023]
Abstract
Root growth and development depend on continuous cell division and differentiation in root tips. In these processes, reactive oxygen species (ROS) play a critical role as signaling molecules. However, few ROS signaling regulators have been identified. In this study, we found knockdown of a syntaxin gene, SYNTAXIN OF PLANTS81 in Arabidopsis thaliana (AtSYP81) resulted in a severe reduction in root meristem activity and disruption of root stem cell niche (SCN) identity. Subsequently, we found AtSYP81 was highly expressed in roots and localized on the endoplasmic reticulum (ER). Interestingly, the reduced expression of AtSYP81 conferred a decreased number of peroxisomes in root meristem cells, raising a possibility that AtSYP81 regulates root development through peroxisome-mediated ROS production. Further transcriptome analysis revealed that class III peroxidases, which are responsible for intracellular ROS homeostasis, showed significantly changed expression in the atsyp81 mutants and AtSYP81 overexpression lines, adding evidence of the regulatory role of AtSYP81 in ROS signaling. Accordingly, rescuing the decreased ROS level via applying ROS donors effectively restored the defects in root meristem activity and SCN identity in the atsyp81 mutants. APETALA2 (AP2) transcription factors PLETHORA1 and 2 (PLT1 and PLT2) were then established as the downstream effectors in this pathway, while potential crosstalk between ROS signaling and auxin signaling was also indicated. Taken together, our findings suggest that AtSYP81 regulates root meristem activity and maintains root SCN identity by controlling peroxisome- and peroxidase-mediated ROS homeostasis, thus both broadening and deepening our understanding of the biological roles of SNARE proteins and ROS signaling.
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Affiliation(s)
- Mingjing Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Hailong Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Xiaonan Zhao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Jingwen Zhou
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Guochen Qin
- Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences at Weifang, Weifang, Shandong 261000, China
| | - Yuqi Liu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Xiaoyue Kou
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Zhenjie Zhao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Tao Wu
- Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Jian-Kang Zhu
- Institute of Advanced Biotechnology and School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China
- Center for Advanced Bioindustry Technologies, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xianzhong Feng
- Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Lixin Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
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11
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Khalilova LA, Lobreva OV, Nedelyaeva OI, Karpichev IV, Balnokin YV. Involvement of the Membrane Nanodomain Protein, AtFlot1, in Vesicular Transport of Plasma Membrane H +-ATPase in Arabidopsis thaliana under Salt Stress. Int J Mol Sci 2023; 24:ijms24021251. [PMID: 36674767 PMCID: PMC9861627 DOI: 10.3390/ijms24021251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/29/2022] [Accepted: 01/06/2023] [Indexed: 01/11/2023] Open
Abstract
The aim of this study was to elucidate whether the membrane nanodomain protein AtFlot1 is involved in vesicular transport pathways and regulation of the P-type H+-ATPase content in plasma membrane of A. thaliana under salt stress. Transmission electron microscopy revealed changes in the endosomal system of A. thaliana root cells due to knockout mutation SALK_205125C (Atflot1ko). Immunoblotting of the plasma membrane-enriched fractions isolated from plant organs with an antibody to the H+-ATPase demonstrated changes in the H+-ATPase content in plasma membrane in response to the Atflot1ko mutation and salt shock. Expression levels of the main H+-ATPase isoforms, PMA1 and PMA2, as well as endocytosis activity of root cells determined by endocytic probe FM4-64 uptake assay, were unchanged in the Atflot1ko mutant. We have shown that AtFlot1 participates in regulation of the H+-ATPase content in the plasma membrane. We hypothesized that AtFlot1 is involved in both exocytosis and endocytosis, and, thus, contributes to the maintenance of cell ion homeostasis under salt stress. The lack of a pronounced Atflot1ko phenotype under salt stress conditions may be due to the assumed ability of Atflot1ko to switch vesicular transport to alternative pathways. Functional redundancy of AtFlot proteins may play a role in the functioning of these alternative pathways.
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12
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Morgan SH, Kader MA, Lindberg S. Cytosolic Sodium Influx in Mesophyll Protoplasts of Arabidopsis thaliana, wt, sos1:1 and nhx1 Differs and Induces Different Calcium Changes. PLANTS (BASEL, SWITZERLAND) 2022; 11:3439. [PMID: 36559553 PMCID: PMC9780823 DOI: 10.3390/plants11243439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/28/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
The sodium influx into the cytosol of mesophyll protoplasts from Arabidopsis thaliana cv. Columbia, wild type, was compared with the influx into sos1-1 and nhx1 genotypes, which lack the Na+/H+ antiporter in the plasma membrane and tonoplast, respectively. Changes in cytosolic sodium and calcium concentrations upon a 100 mM NaCl addition were detected by use of epifluorescence microscopy and the sodium-specific fluorescent dye SBFI, AM, and calcium sensitive Fura 2, AM, respectively. There was a smaller and mainly transient influx of Na+ in the cytosol of the wild type compared with the sos1-1 and nhx1 genotypes, in which the influx lasted for a longer time. Sodium chloride addition to the protoplasts' medium induced a significant increase in cytosolic calcium concentration in the wild type at 1.0 mM external calcium, and to a lesser extent in nhx1, however, it was negligible in the sos1-1 genotype. LiCl inhibited the cytosolic calcium elevation in the wild type. The results suggest that the salt-induced calcium elevation in the cytosol of mesophyll cells depends on an influx from both internal and external stores and occurs in the presence of an intact Na+/H+ antiporter at the plasma membrane. The Arabidopsis SOS1 more effectively regulates sodium homeostasis than NHX1.
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Affiliation(s)
- Sherif H. Morgan
- Plant Botany Department, Faculty of Agriculture, Cairo University, Cairo 12613, Egypt
| | - Md Abdul Kader
- Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Sylvia Lindberg
- Department of Ecology, Environment and Plant Sciences, Stockholm University, SE-106 91 Stockholm, Sweden
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13
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Jiang R, Zhou S, Da X, Chen T, Xu J, Yan P, Mo X. Ubiquitin-Specific Protease 2 (OsUBP2) Negatively Regulates Cell Death and Disease Resistance in Rice. PLANTS 2022; 11:plants11192568. [PMID: 36235432 PMCID: PMC9571816 DOI: 10.3390/plants11192568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022]
Abstract
Lesion mimic mutants (LMMs) are great materials for studying programmed cell death and immune mechanisms in plants. Various mechanisms are involved in the phenotypes of different LMMs, but few studies have explored the mechanisms linking deubiquitination and LMMs in rice (Oryza sativa). Here, we identified a rice LMM, rust spots rice (rsr1), resulting from the mutation of a single recessive gene. This LMM has spontaneous reddish-brown spots on its leaves, and displays enhanced resistance to both fungal leaf blast (caused by Magnaporthe oryzae) and bacterial blight (caused by Xanthomonas oryzae pv. oryzae). Map-based cloning showed that the mutated gene in rsr1 encodes a Ubiquitin-Specific Protease 2 (OsUBP2). The mutation of OsUBP2 was shown to result in reactive oxygen species (ROS) accumulation, chloroplast structural defects, and programmed cell death, while the overexpression of OsUBP2 weakened rice resistance to leaf blast. OsUBP2 is therefore a negative regulator of immune processes and ROS production. OsUBP2 has deubiquitinating enzyme activity in vitro, and the enzyme active site includes a cysteine at the 234th residue. The ubiquitinated proteomics data of rsr1 and WT provide some possible target protein candidates for OsUBP2.
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Hassan SH, Sferra G, Simiele M, Scippa GS, Morabito D, Trupiano D. Root and shoot biology of Arabidopsis halleri dissected by WGCNA: an insight into the organ pivotal pathways and genes of an hyperaccumulator. Funct Integr Genomics 2022; 22:1159-1172. [PMID: 36094581 DOI: 10.1007/s10142-022-00897-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/15/2022] [Accepted: 08/31/2022] [Indexed: 11/27/2022]
Abstract
Arabidopsis halleri is a hyperaccumulating pseudo-metallophyte and an emerging model to explore molecular basis of metal tolerance and hyperaccumulation. In this regard, understanding of interacting genes can be a crucial aspect as these interactions regulate several biological functions at molecular level in response to multiple signals. In this current study, we applied a weighted gene co-expression network analysis (WGCNA) on root and shoot RNA-seq data of A. halleri to predict the related scale-free organ specific co-expression networks, for the first time. A total of 19,653 genes of root and 18,081 genes of shoot were grouped into 14 modules and subjected to GO and KEGG enrichment analysis. "Photosynthesis" and "photosynthesis-antenna proteins" were identified as the most enriched and common pathway to both root and shoot. Whereas "glucosinolate biosynthesis," "autophagy," and "SNARE interactions in vesicular transport" were specific to root, and "circadian rhythm" was found to be enriched only in shoot. Later, hub and bottleneck genes were identified in each module by using cytoHubba plugin based on Cytoscape and scoring the relevance of each gene to the topology of the network. The modules with the most significant differential expression pattern across control and treatment (Cd-Zn treatment) were selected and their hub and bottleneck genes were screened to validate their possible involvement in heavy metal stress. Moreover, we combined the analysis of co-expression modules together with protein-protein interactions (PPIs), confirming some genes as potential candidates in plant heavy metal stress and as biomarkers. The results from this analysis shed the light on the pivotal functions to the hyperaccumulative trait of A. halleri, giving perspective to new paths for future research on this species.
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Affiliation(s)
- Sayyeda Hira Hassan
- Department of Biosciences and Territory, University of Molise, 86090, Pesche, Italy
| | - Gabriella Sferra
- Department of Biosciences and Territory, University of Molise, 86090, Pesche, Italy.
| | - Melissa Simiele
- Department of Biosciences and Territory, University of Molise, 86090, Pesche, Italy
| | | | - Domenico Morabito
- Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC-EA1207), Université d'Orléans, 45067, Orléans CEDEX 2, France
| | - Dalila Trupiano
- Department of Biosciences and Territory, University of Molise, 86090, Pesche, Italy
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15
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Lei X, Liu Z, Xie Q, Fang J, Wang C, Li J, Wang C, Gao C. Construction of two regulatory networks related to salt stress and lignocellulosic synthesis under salt stress based on a Populus davidiana × P. bolleana transcriptome analysis. PLANT MOLECULAR BIOLOGY 2022; 109:689-702. [PMID: 35486290 DOI: 10.1007/s11103-022-01267-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 03/19/2022] [Indexed: 06/14/2023]
Abstract
Construction of ML-hGRN for the salt pathway in Populus davidiana × P. bolleana. Construction of ML-hGRN for the lignocellulosic pathway in Populus davidiana × P. bolleana under salt stress. Many woody plants, including Populus davidiana × P. bolleana, have made great contributions to human production and life. High salt is one of the main environmental factors that restricts the growth of poplar. This study found that high salt could induce strong biochemical changes in poplar. To detect the effect of salt treatment on gene expression, 18 libraries were sequenced on the Illumina sequencing platform. The results identified a large number of early differentially expressed genes (DEGs) and a small number of late DEGs, which indicated that most of the salt response genes of poplar were early response genes. In addition, 197 TFs, including NAC, ERF, and other TFs related to salt stress, were differentially expressed during salt treatment, which indicated that these TFs may play an important role in the salt stress response of poplar. Based on the RNA-seq analysis results, multilayered hierarchical gene regulatory networks (ML-hGRNs) of salt stress- and lignocellulosic synthesis-related DEGs were constructed using the GGM algorithm. The lignocellulosic synthesis regulatory network under salt stress revealed that lignocellulosic synthesis might play an important role in the process of salt stress resistance. Furthermore, the NAC family transcription factor PdbNAC83, which was found in the upper layer in both pathways, was selected to verify the accuracy of the ML-hGRNs. DAP-seq showed that the binding site of PdbNAC83 included a "TT(G/A)C(G/T)T" motif, and ChIP-PCR further verified that PdbNAC83 can regulate the promoters of at least six predicted downstream genes (PdbNLP2-2, PdbZFP6, PdbMYB73, PdbC2H2-like, PdbMYB93-1, PdbbHLH094) by binding to the "TT(G/A)C(G/T)T" motif, which indicates that the predicted regulatory network diagram obtained in this study is relatively accurate. In conclusion, a species-specific salt response pathway might exist in poplar, and this finding lays a foundation for further study of the regulatory mechanism of the salt stress response and provides new clues for the use of genetic engineering methods to create high-quality and highly resistant forest germplasms.
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Affiliation(s)
- Xiaojin Lei
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin, 150040, China
| | - Zhongyuan Liu
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin, 150040, China
| | - Qingjun Xie
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin, 150040, China
| | - Jiaru Fang
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin, 150040, China
| | - Chunyao Wang
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin, 150040, China
| | - Jinghang Li
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin, 150040, China
| | - Chao Wang
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin, 150040, China
| | - Caiqiu Gao
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin, 150040, China.
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Tang WS, Zhong L, Ding QQ, Dou YN, Li WW, Xu ZS, Zhou YB, Chen J, Chen M, Ma YZ. Histone deacetylase AtSRT2 regulates salt tolerance during seed germination via repression of vesicle-associated membrane protein 714 (VAMP714) in Arabidopsis. THE NEW PHYTOLOGIST 2022; 234:1278-1293. [PMID: 35224735 DOI: 10.1111/nph.18060] [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: 12/19/2021] [Accepted: 02/07/2022] [Indexed: 05/26/2023]
Abstract
Salt tolerance during seed germination is essential for seedling establishment under salt stress. Sirtuin-like proteins, NAD+ -dependent histone deacetylases, are involved in plant responses to abiotic stresses; however, the regulatory mechanism remains unknown. We elucidated the mechanism underlying AtSRT2 (a sirtuin-like protein)-mediated regulation of salt tolerance during seed germination in Arabidopsis. The AtSRT2 mutant srt2 exhibited significantly reduced seed germination percentages under salt stress; its targets were identified via chromatin immunoprecipitation coupled with ultra-high-throughput parallel DNA sequencing (ChIP-Seq) assay. Epistasis analysis was performed to identify AtSRT2-related pathways. Overexpression of SRT2.7, an AtSRT2 splice variant, rescued the salt-sensitive phenotype of mutant srt2. AtSRT2 histone deacetylation activity was important for salt tolerance during seed germination. The acetylation level of histone H4K8 locus in srt2-1 increased significantly under salt treatment. Vesicle-associated membrane protein 714 (VAMP714), a negative regulator of hydrogen peroxide (H2 O2 )-containing vesicle trafficking in cells, was identified as a target of AtSRT2. AtSRT2 regulated histone acetylation in the promoter region of VAMP714 and inhibited VAMP714 transcription under salt treatment. Seed germination percentage of double-mutant srt2-1vamp714 was close to that of single-mutant vamp714, and higher than that of single-mutant srt2 under salt stress. Hydrogen peroxide content and DNA damage increased after salt treatment in srt2 during seed germination. AtSRT2 regulates salt tolerance during seed germination through VAMP714 in Arabidopsis.
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Affiliation(s)
- Wen-Si Tang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081, China
| | - Li Zhong
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081, China
- Guizhou Institute of Prataculture, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou, 550006, China
| | - Qing-Qian Ding
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081, China
| | - Yi-Ning Dou
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081, China
| | - Wei-Wei Li
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081, China
| | - Zhao-Shi Xu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081, China
| | - Yong-Bin Zhou
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081, China
| | - Jun Chen
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081, China
| | - Ming Chen
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081, China
| | - You-Zhi Ma
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081, China
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17
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Xie Q, Zhou Y, Jiang X. Structure, Function, and Regulation of the Plasma Membrane Na +/H + Antiporter Salt Overly Sensitive 1 in Plants. FRONTIERS IN PLANT SCIENCE 2022; 13:866265. [PMID: 35432437 PMCID: PMC9009148 DOI: 10.3389/fpls.2022.866265] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/08/2022] [Indexed: 05/24/2023]
Abstract
Physiological studies have confirmed that export of Na+ to improve salt tolerance in plants is regulated by the combined activities of a complex transport system. In the Na+ transport system, the Na+/H+ antiporter salt overly sensitive 1 (SOS1) is the main protein that functions to excrete Na+ out of plant cells. In this paper, we review the structure and function of the Na+/H+ antiporter and the physiological process of Na+ transport in SOS signaling pathway, and discuss the regulation of SOS1 during phosphorylation activation by protein kinase and the balance mechanism of inhibiting SOS1 antiporter at molecular and protein levels. In addition, we carried out phylogenetic tree analysis of SOS1 proteins reported so far in plants, which implied the specificity of salt tolerance mechanism from model plants to higher crops under salt stress. Finally, the high complexity of the regulatory network of adaptation to salt tolerance, and the feasibility of coping strategies in the process of genetic improvement of salt tolerance quality of higher crops were reviewed.
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Affiliation(s)
- Qing Xie
- National Innovation Center for Technology of Saline-Alkaline Tolerant Rice/College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
- Hainan Key Laboratory for Biotechnology of Salt Tolerant Crops/School of Horticulture, Hainan University, Haikou, China
| | - Yang Zhou
- Hainan Key Laboratory for Biotechnology of Salt Tolerant Crops/School of Horticulture, Hainan University, Haikou, China
| | - Xingyu Jiang
- National Innovation Center for Technology of Saline-Alkaline Tolerant Rice/College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
- Hainan Key Laboratory for Biotechnology of Salt Tolerant Crops/School of Horticulture, Hainan University, Haikou, China
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18
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Sampaio M, Neves J, Cardoso T, Pissarra J, Pereira S, Pereira C. Coping with Abiotic Stress in Plants-An Endomembrane Trafficking Perspective. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11030338. [PMID: 35161321 PMCID: PMC8838314 DOI: 10.3390/plants11030338] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/25/2022] [Accepted: 01/25/2022] [Indexed: 05/30/2023]
Abstract
Plant cells face many changes through their life cycle and develop several mechanisms to cope with adversity. Stress caused by environmental factors is turning out to be more and more relevant as the human population grows and plant cultures start to fail. As eukaryotes, plant cells must coordinate several processes occurring between compartments and combine different pathways for protein transport to several cellular locations. Conventionally, these pathways begin at the ER, or endoplasmic reticulum, move through the Golgi and deliver cargo to the vacuole or to the plasma membrane. However, when under stress, protein trafficking in plants is compromised, usually leading to changes in the endomembrane system that may include protein transport through unconventional routes and alteration of morphology, activity and content of key organelles, as the ER and the vacuole. Such events provide the tools for cells to adapt and overcome the challenges brought on by stress. With this review, we gathered fragmented information on the subject, highlighting how such changes are processed within the endomembrane system and how it responds to an ever-changing environment. Even though the available data on this subject are still sparse, novel information is starting to untangle the complexity and dynamics of protein transport routes and their role in maintaining cell homeostasis under harsh conditions.
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Affiliation(s)
- Miguel Sampaio
- GreenUPorto—Sustainable Agrifood Production Research Centre/Inov4Agro, Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/nº, 4169-007 Porto, Portugal; (M.S.); (J.P.)
| | - João Neves
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/nº, 4169-007 Porto, Portugal; (J.N.); (T.C.)
| | - Tatiana Cardoso
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/nº, 4169-007 Porto, Portugal; (J.N.); (T.C.)
| | - José Pissarra
- GreenUPorto—Sustainable Agrifood Production Research Centre/Inov4Agro, Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/nº, 4169-007 Porto, Portugal; (M.S.); (J.P.)
| | - Susana Pereira
- GreenUPorto—Sustainable Agrifood Production Research Centre/Inov4Agro, Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/nº, 4169-007 Porto, Portugal; (M.S.); (J.P.)
| | - Cláudia Pereira
- GreenUPorto—Sustainable Agrifood Production Research Centre/Inov4Agro, Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/nº, 4169-007 Porto, Portugal; (M.S.); (J.P.)
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19
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Luo C, Shi Y, Xiang Y. SNAREs Regulate Vesicle Trafficking During Root Growth and Development. FRONTIERS IN PLANT SCIENCE 2022; 13:853251. [PMID: 35360325 PMCID: PMC8964185 DOI: 10.3389/fpls.2022.853251] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 01/27/2022] [Indexed: 05/13/2023]
Abstract
SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins assemble to drive the final membrane fusion step of membrane trafficking. Thus, SNAREs are essential for membrane fusion and vesicular trafficking, which are fundamental mechanisms for maintaining cellular homeostasis. In plants, SNAREs have been demonstrated to be located in different subcellular compartments and involved in a variety of fundamental processes, such as cytokinesis, cytoskeleton organization, symbiosis, and biotic and abiotic stress responses. In addition, SNAREs can also contribute to the normal growth and development of Arabidopsis. Here, we review recent progress in understanding the biological functions and signaling network of SNAREs in vesicle trafficking and the regulation of root growth and development in Arabidopsis.
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20
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Sunde J, Yıldırım Y, Tibblin P, Bekkevold D, Skov C, Nordahl O, Larsson P, Forsman A. Drivers of neutral and adaptive differentiation in pike (Esox lucius) populations from contrasting environments. Mol Ecol 2021; 31:1093-1110. [PMID: 34874594 DOI: 10.1111/mec.16315] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/29/2021] [Accepted: 12/01/2021] [Indexed: 01/28/2023]
Abstract
Understanding how eco-evolutionary processes and environmental factors drive population differentiation and adaptation are key challenges in evolutionary biology of relevance for biodiversity protection. Differentiation requires at least partial reproductive separation, which may result from different modes of isolation such as geographic isolation (allopatry) or isolation by distance (IBD), resistance (IBR), and environment (IBE). Despite that multiple modes might jointly influence differentiation, studies that compare the relative contributions are scarce. Using RADseq, we analyse neutral and adaptive genetic diversity and structure in 11 pike (Esox lucius) populations from contrasting environments along a latitudinal gradient (54.9-63.6°N), to investigate the relative effects of IBD, IBE and IBR, and to assess whether the effects differ between neutral and adaptive variation, or across structural levels. Patterns of neutral and adaptive variation differed, probably reflecting that they have been differently affected by stochastic and deterministic processes. The importance of the different modes of isolation differed between neutral and adaptive diversity, yet were consistent across structural levels. Neutral variation was influenced by interactions among all three modes of isolation, with IBR (seascape features) playing a central role, wheares adaptive variation was mainly influenced by IBE (environmental conditions). Taken together, this and previous studies suggest that it is common that multiple modes of isolation interactively shape patterns of genetic variation, and that their relative contributions differ among systems. To enable identification of general patterns and understand how various factors influence the relative contributions, it is important that several modes are simultaneously investigated in additional populations, species and environmental settings.
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Affiliation(s)
- Johanna Sunde
- Ecology and Evolution in Microbial Model Systems, EEMiS, Department of Biology and Environmental Science, Linnaeus University, Kalmar, Sweden
| | - Yeşerin Yıldırım
- Ecology and Evolution in Microbial Model Systems, EEMiS, Department of Biology and Environmental Science, Linnaeus University, Kalmar, Sweden
| | - Petter Tibblin
- Ecology and Evolution in Microbial Model Systems, EEMiS, Department of Biology and Environmental Science, Linnaeus University, Kalmar, Sweden
| | - Dorte Bekkevold
- National Institute of Aquatic Resources, Technical University of Denmark, Silkeborg, Denmark
| | - Christian Skov
- National Institute of Aquatic Resources, Technical University of Denmark, Silkeborg, Denmark
| | - Oscar Nordahl
- Ecology and Evolution in Microbial Model Systems, EEMiS, Department of Biology and Environmental Science, Linnaeus University, Kalmar, Sweden
| | - Per Larsson
- Ecology and Evolution in Microbial Model Systems, EEMiS, Department of Biology and Environmental Science, Linnaeus University, Kalmar, Sweden
| | - Anders Forsman
- Ecology and Evolution in Microbial Model Systems, EEMiS, Department of Biology and Environmental Science, Linnaeus University, Kalmar, Sweden
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21
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He J, Rössner N, Hoang MTT, Alejandro S, Peiter E. Transport, functions, and interaction of calcium and manganese in plant organellar compartments. PLANT PHYSIOLOGY 2021; 187:1940-1972. [PMID: 35235665 PMCID: PMC8890496 DOI: 10.1093/plphys/kiab122] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 03/02/2021] [Indexed: 05/05/2023]
Abstract
Calcium (Ca2+) and manganese (Mn2+) are essential elements for plants and have similar ionic radii and binding coordination. They are assigned specific functions within organelles, but share many transport mechanisms to cross organellar membranes. Despite their points of interaction, those elements are usually investigated and reviewed separately. This review takes them out of this isolation. It highlights our current mechanistic understanding and points to open questions of their functions, their transport, and their interplay in the endoplasmic reticulum (ER), vesicular compartments (Golgi apparatus, trans-Golgi network, pre-vacuolar compartment), vacuoles, chloroplasts, mitochondria, and peroxisomes. Complex processes demanding these cations, such as Mn2+-dependent glycosylation or systemic Ca2+ signaling, are covered in some detail if they have not been reviewed recently or if recent findings add to current models. The function of Ca2+ as signaling agent released from organelles into the cytosol and within the organelles themselves is a recurrent theme of this review, again keeping the interference by Mn2+ in mind. The involvement of organellar channels [e.g. glutamate receptor-likes (GLR), cyclic nucleotide-gated channels (CNGC), mitochondrial conductivity units (MCU), and two-pore channel1 (TPC1)], transporters (e.g. natural resistance-associated macrophage proteins (NRAMP), Ca2+ exchangers (CAX), metal tolerance proteins (MTP), and bivalent cation transporters (BICAT)], and pumps [autoinhibited Ca2+-ATPases (ACA) and ER Ca2+-ATPases (ECA)] in the import and export of organellar Ca2+ and Mn2+ is scrutinized, whereby current controversial issues are pointed out. Mechanisms in animals and yeast are taken into account where they may provide a blueprint for processes in plants, in particular, with respect to tunable molecular mechanisms of Ca2+ versus Mn2+ selectivity.
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Affiliation(s)
- Jie He
- Faculty of Natural Sciences III, Plant Nutrition Laboratory, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Nico Rössner
- Faculty of Natural Sciences III, Plant Nutrition Laboratory, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Minh T T Hoang
- Faculty of Natural Sciences III, Plant Nutrition Laboratory, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Santiago Alejandro
- Faculty of Natural Sciences III, Plant Nutrition Laboratory, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Edgar Peiter
- Faculty of Natural Sciences III, Plant Nutrition Laboratory, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
- Author for communication:
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22
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Gaggar P, Kumar M, Mukhopadhyay K. Genome-Scale Identification, in Silico Characterization and Interaction Study Between Wheat SNARE and NPSN Gene Families Involved in Vesicular Transport. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2021; 18:2492-2501. [PMID: 32191897 DOI: 10.1109/tcbb.2020.2981896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Wheat is an important cereal crop grown worldwide but it's yield is severely affected by various biotic and abiotic stresses. SNAREs are key regulators of vesicle trafficking and are present in abundance in higher plant species suggesting their prominence in growth and development. Novel Plant SNAREs (NPSN) are found exclusively in plants. Hence, a comprehensive analysis of these two gene families in wheat genome was accomplished in this study. We report here 27 SNAREs and eight NPSN genes. These genes and their respective proteins were investigated for gene structure, physiochemical properties, domain and motif architecture, phylogeny, chromosomal localization and possible interactions. Phylogenetic and motif analysis confirmed SNARE domain in all the proteins. Functional annotation revealed participation in biological process like vesicle fusion, exocytosis, protein targeting to vacuole and SNAP receptor activity. At subcellular level, SNAREs were localized in multiple organelles whereas NPSN proteins were localized in cytoplasm where they regulate vesicle fusion. The 3-D structures built with Modeller proved the presence of SNARE motifs in the identified proteins. Possible protein-protein interactions between SNARE and NPSN proteins were determined and docking was performed. The results augmented our understanding about molecular function, evolutionary relation, location inside the cell and their interactions.
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23
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Ambastha V, Matityahu I, Tidhar D, Leshem Y. RabA2b Overexpression Alters the Plasma-Membrane Proteome and Improves Drought Tolerance in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2021; 12:738694. [PMID: 34691115 PMCID: PMC8526897 DOI: 10.3389/fpls.2021.738694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 09/13/2021] [Indexed: 06/07/2023]
Abstract
Rab proteins are small GTPases that are important in the regulation of vesicle trafficking. Through data mining, we identified RabA2b to be stress responsive, though little is known about the involvement of RabA in plant responses to abiotic stresses. Analysis of the RabA2b native promoter showed strong activity during osmotic stress, which required the stress hormone Abscisic acid (ABA) and was restricted to the vasculature. Sequence analysis of the promoter region identified predicted binding motifs for several ABA-responsive transcription factors. We cloned RabA2b and overexpressed it in Arabidopsis. The resulting transgenic plants were strikingly drought resistant. The reduced water loss observed in detached leaves of the transgenic plants could not be explained by stomatal aperture or density, which was similar in all the genotypes. Subcellular localization studies detected strong colocalization between RabA2b and the plasma membrane (PM) marker PIP2. Further studies of the PM showed, for the first time, a distinguished alteration in the PM proteome as a result of RabA2b overexpression. Proteomic analysis of isolated PM fractions showed enrichment of stress-coping proteins as well as cell wall/cuticle modifiers in the transgenic lines. Finally, the cuticle permeability of transgenic leaves was significantly reduced compared to the wild type, suggesting that it plays a role in its drought resistant properties. Overall, these data provide new insights into the roles and modes of action of RabA2b during water stresses, and indicate that increased RabA2b mediated PM trafficking can affect the PM proteome and increase drought tolerance.
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Affiliation(s)
- Vivek Ambastha
- Department of Plant Sciences, MIGAL – Galilee Research Institute, Kiryat Shmona, Israel
| | - Ifat Matityahu
- Department of Plant Sciences, MIGAL – Galilee Research Institute, Kiryat Shmona, Israel
| | - Dafna Tidhar
- Department of Plant Sciences, MIGAL – Galilee Research Institute, Kiryat Shmona, Israel
- Faculty of Sciences and Technology, Tel-Hai College, Upper Galilee, Israel
| | - Yehoram Leshem
- Department of Plant Sciences, MIGAL – Galilee Research Institute, Kiryat Shmona, Israel
- Faculty of Sciences and Technology, Tel-Hai College, Upper Galilee, Israel
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24
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Su ZZ, Dai MD, Zhu JN, Liu XH, Li L, Zhu XM, Wang JY, Yuan ZL, Lin FC. Dark septate endophyte Falciphora oryzae-assisted alleviation of cadmium in rice. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126435. [PMID: 34323726 DOI: 10.1016/j.jhazmat.2021.126435] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 06/08/2021] [Accepted: 06/18/2021] [Indexed: 06/13/2023]
Abstract
Dark septate endophytes (DSEs) are the typical representatives of root endophytic fungi in heavy metal (HM)-contaminated environments. However, little is known about their roles in the HMs tolerance of hosts and the underlying mechanism. Here, we investigated the biological roles and molecular mechanisms of a DSE strain Falciphora oryzae in alleviating cadmium (Cd) toxicities in rice. It was found that F. oryzae possessed a capacity of accumulating Cd in its vacuoles and chlamydospores. During symbiosis, F. oryzae conferred improved Cd tolerance to rice, decreasing Cd accumulation in roots and translocation to shoots. F. oryzae alleviated Cd toxicity to rice by sequestering Cd in its vacuoles. Further application of F. oryzae as fertilizer in the field could reduce Cd content in rice grains. We identified a SNARE Syntaxin 1 gene through proteomics, which participated in Cd tolerance of F. oryzae by regulating chlamydospore formation and vacuole enlargement. This study provided novel insights into how the DSEs and their host plants combat Cd stress.
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Affiliation(s)
- Zhen-Zhu Su
- Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Meng-Di Dai
- Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Jia-Nan Zhu
- Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Xiao-Hong Liu
- Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Lin Li
- Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Xue-Ming Zhu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jiao-Yu Wang
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Zhi-Lin Yuan
- Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Fu-Cheng Lin
- Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
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25
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Fichman Y, Mittler R. Integration of electric, calcium, reactive oxygen species and hydraulic signals during rapid systemic signaling in plants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 107:7-20. [PMID: 34058040 DOI: 10.1111/tpj.15360] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 05/08/2023]
Abstract
The sensing of abiotic stress, mechanical injury or pathogen attack by a single plant tissue results in the activation of systemic signals that travel from the affected tissue to the entire plant. This process is essential for plant survival during stress and is termed systemic signaling. Among the different signals triggered during this process are calcium, electric, reactive oxygen species and hydraulic signals. These are thought to propagate at rapid rates through the plant vascular bundles and to regulate many of the systemic processes essential for plant survival. Although the different signals activated during systemic signaling are thought to be interlinked, their coordination and hierarchy still need to be determined. Here, using a combination of advanced whole-plant imaging and hydraulic pressure measurements, we studied the activation of all four systemic signals in wild-type and different Arabidopsis thaliana mutants subjected to a local treatment of high-light (HL) stress or wounding. Our findings reveal that activation of systemic membrane potential, calcium, reactive oxygen species and hydraulic pressure signals, in response to wounding, is dependent on glutamate receptor-like proteins 3.3 and 3.6. In contrast, in response to HL stress, systemic changes in calcium and membrane potential depended on glutamate receptor-like 3.3 and 3.6, while systemic hydraulic signals did not. We further show that plasmodesmata functions are required for systemic changes in membrane potential and calcium during responses to HL stress or wounding. Our findings shed new light on the different mechanisms that integrate different systemic signals in plants during stress.
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Affiliation(s)
- Yosef Fichman
- The Division of Plant Sciences and Interdisciplinary Plant Group, College of Agriculture, Food and Natural Resources, Christopher S. Bond Life Sciences Center, University of Missouri, 1201 Rollins St, Columbia, MO, 65201, USA
| | - Ron Mittler
- The Division of Plant Sciences and Interdisciplinary Plant Group, College of Agriculture, Food and Natural Resources, 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, 65201, USA
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26
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Salinas-Cornejo J, Madrid-Espinoza J, Verdugo I, Pérez-Díaz J, Martín-Davison AS, Norambuena L, Ruiz-Lara S. The Exocytosis Associated SNAP25-Type Protein, SlSNAP33, Increases Salt Stress Tolerance by Modulating Endocytosis in Tomato. PLANTS 2021; 10:plants10071322. [PMID: 34209492 PMCID: PMC8309203 DOI: 10.3390/plants10071322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 06/22/2021] [Accepted: 06/26/2021] [Indexed: 11/29/2022]
Abstract
In plants, vesicular trafficking is crucial for the response and survival to environmental challenges. The active trafficking of vesicles is essential to maintain cell homeostasis during salt stress. Soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs) are regulatory proteins of vesicular trafficking. They mediate membrane fusion and guarantee cargo delivery to the correct cellular compartments. SNAREs from the Qbc subfamily are the best-characterized plasma membrane SNAREs, where they control exocytosis during cell division and defense response. The Solanum lycopersicum gene SlSNAP33.2 encodes a Qbc-SNARE protein and is induced under salt stress conditions. SlSNAP33.2 localizes on the plasma membrane of root cells of Arabidopsis thaliana. In order to study its role in endocytosis and salt stress response, we overexpressed the SlSNAP33.2 cDNA in a tomato cultivar. Constitutive overexpression promoted endocytosis along with the accumulation of sodium (Na+) in the vacuoles. It also protected the plant from cell damage by decreasing the accumulation of hydrogen peroxide (H2O2) in the cytoplasm of stressed root cells. Subsequently, the higher level of SlSNAP33.2 conferred tolerance to salt stress in tomato plants. The analysis of physiological and biochemical parameters such as relative water content, the efficiency of the photosystem II, performance index, chlorophyll, and MDA contents showed that tomato plants overexpressing SlSNAP33.2 displayed a better performance under salt stress than wild type plants. These results reveal a role for SlSNAP33.2 in the endocytosis pathway involved in plant response to salt stress. This research shows that SlSNAP33.2 can be an effective tool for the genetic improvement of crop plants.
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Affiliation(s)
- Josselyn Salinas-Cornejo
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca 3460000, Chile; (J.S.-C.); (J.M.-E.); (I.V.); (J.P.-D.); (A.S.M.-D.)
| | - José Madrid-Espinoza
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca 3460000, Chile; (J.S.-C.); (J.M.-E.); (I.V.); (J.P.-D.); (A.S.M.-D.)
| | - Isabel Verdugo
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca 3460000, Chile; (J.S.-C.); (J.M.-E.); (I.V.); (J.P.-D.); (A.S.M.-D.)
| | - Jorge Pérez-Díaz
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca 3460000, Chile; (J.S.-C.); (J.M.-E.); (I.V.); (J.P.-D.); (A.S.M.-D.)
| | - Alex San Martín-Davison
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca 3460000, Chile; (J.S.-C.); (J.M.-E.); (I.V.); (J.P.-D.); (A.S.M.-D.)
| | - Lorena Norambuena
- Facultad de Ciencias, Universidad de Chile, Santiago, Ñuñoa 7750000, Chile;
| | - Simón Ruiz-Lara
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca 3460000, Chile; (J.S.-C.); (J.M.-E.); (I.V.); (J.P.-D.); (A.S.M.-D.)
- Correspondence:
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27
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Abstract
Nowadays, crop insufficiency resulting from soil salinization is threatening the world. On the basis that soil salinization has become a worldwide problem, studying the mechanisms of plant salt tolerance is of great theoretical and practical significance to improve crop yield, to cultivate new salt-tolerant varieties, and to make full use of saline land. Based on previous studies, this paper reviews the damage of salt stress to plants, including suppression of photosynthesis, disturbance of ion homeostasis, and membrane peroxidation. We have also summarized the physiological mechanisms of salt tolerance, including reactive oxygen species (ROS) scavenging and osmotic adjustment. Four main stress-related signaling pathways, salt overly sensitive (SOS) pathway, calcium-dependent protein kinase (CDPK) pathway, mitogen-activated protein kinase (MAPKs) pathway, and abscisic acid (ABA) pathway, are included. We have also enumerated some salt stress-responsive genes that correspond to physiological mechanisms. In the end, we have outlined the present approaches and techniques to improve salt tolerance of plants. All in all, we reviewed those aspects above, in the hope of providing valuable background knowledge for the future cultivation of agricultural and forestry plants.
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28
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Lu C, Yuan F, Guo J, Han G, Wang C, Chen M, Wang B. Current Understanding of Role of Vesicular Transport in Salt Secretion by Salt Glands in Recretohalophytes. Int J Mol Sci 2021; 22:2203. [PMID: 33672188 PMCID: PMC7926375 DOI: 10.3390/ijms22042203] [Citation(s) in RCA: 6] [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: 01/27/2021] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 12/18/2022] Open
Abstract
Soil salinization is a serious and growing problem around the world. Some plants, recognized as the recretohalophytes, can normally grow on saline-alkali soil without adverse effects by secreting excessive salt out of the body. The elucidation of the salt secretion process is of great significance for understanding the salt tolerance mechanism adopted by the recretohalophytes. Between the 1950s and the 1970s, three hypotheses, including the osmotic potential hypothesis, the transfer system similar to liquid flow in animals, and vesicle-mediated exocytosis, were proposed to explain the salt secretion process of plant salt glands. More recently, increasing evidence has indicated that vesicular transport plays vital roles in salt secretion of recretohalophytes. Here, we summarize recent findings, especially regarding the molecular evidence on the functional roles of vesicular trafficking in the salt secretion process of plant salt glands. A model of salt secretion in salt gland is also proposed.
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Affiliation(s)
| | | | | | | | | | | | - Baoshan Wang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Sciences, Shandong Normal University, Jinan 250014, China; (C.L.); (F.Y.); (J.G.); (G.H.); (C.W.); (M.C.)
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29
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Cui Y, Peng Y, Zhang Q, Xia S, Ruan B, Xu Q, Yu X, Zhou T, Liu H, Zeng D, Zhang G, Gao Z, Hu J, Zhu L, Shen L, Guo L, Qian Q, Ren D. Disruption of EARLY LESION LEAF 1, encoding a cytochrome P450 monooxygenase, induces ROS accumulation and cell death in rice. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 105:942-956. [PMID: 33190327 DOI: 10.1111/tpj.15079] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/23/2020] [Accepted: 10/28/2020] [Indexed: 05/18/2023]
Abstract
Lesion-mimic mutants (LMMs) provide a valuable tool to reveal the molecular mechanisms determining programmed cell death (PCD) in plants. Despite intensive research, the mechanisms behind PCD and the formation of lesions in various LMMs still remain to be elucidated. Here, we identified a rice (Oryza sativa) LMM, early lesion leaf 1 (ell1), cloned the causal gene by map-based cloning, and verified this by complementation. ELL1 encodes a cytochrome P450 monooxygenase, and the ELL1 protein was located in the endoplasmic reticulum. The ell1 mutant exhibited decreased chlorophyll contents, serious chloroplast degradation, upregulated expression of chloroplast degradation-related genes, and attenuated photosynthetic protein activity, indicating that ELL1 is involved in chloroplast development. RNA sequencing analysis showed that genes related to oxygen binding were differentially expressed in ell1 and wild-type plants; histochemistry and paraffin sectioning results indicated that hydrogen peroxide (H2 O2 ) and callose accumulated in the ell1 leaves, and the cell structure around the lesions was severely damaged, which indicated that reactive oxygen species (ROS) accumulated and cell death occurred in the mutant. TUNEL staining and comet experiments revealed that severe DNA degradation and abnormal PCD occurred in the ell1 mutants, which implied that excessive ROS accumulation may induce DNA damage and ROS-mediated cell death in the mutant. Additionally, lesion initiation in the ell1 mutant was light dependent and temperature sensitive. Our findings revealed that ELL1 affects chloroplast development or function, and that loss of ELL1 function induces ROS accumulation and lesion formation in rice.
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Affiliation(s)
- Yuanjiang Cui
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Youlin Peng
- Rice Research Institute, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Qiang Zhang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Saisai Xia
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Banpu Ruan
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Qiankun Xu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Xiaoqi Yu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Tingting Zhou
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - He Liu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Dali Zeng
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Guangheng Zhang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Zhenyu Gao
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Jiang Hu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Li Zhu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Lan Shen
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Longbiao Guo
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Qian Qian
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Deyong Ren
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, P. R. China
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30
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Zhao ZX, Xu YJ, Lei Y, Li Q, Zhao JQ, Li Y, Fan J, Xiao S, Wang WM. ANNEXIN 8 negatively regulates RPW8.1-mediated cell death and disease resistance in Arabidopsis. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:378-392. [PMID: 33073904 DOI: 10.1111/jipb.13025] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
Study on the regulation of broad-spectrum resistance is an active area in plant biology. RESISTANCE TO POWDERY MILDEW 8.1 (RPW8.1) is one of a few broad-spectrum resistance genes triggering the hypersensitive response (HR) to restrict multiple pathogenic infections. To address the question how RPW8.1 signaling is regulated, we performed a genetic screen and tried to identify mutations enhancing RPW8.1-mediated HR. Here, we provided evidence to connect an annexin protein with RPW8.1-mediated resistance in Arabidopsis against powdery mildew. We isolated and characterized Arabidopsis b7-6 mutant. A point mutation in b7-6 at the At5g12380 locus resulted in an amino acid substitution in ANNEXIN 8 (AtANN8). Loss-of-function or RNA-silencing of AtANN8 led to enhanced expression of RPW8.1, RPW8.1-dependent necrotic lesions in leaves, and defense against powdery mildew. Conversely, over-expression of AtANN8 compromised RPW8.1-mediated disease resistance and cell death. Interestingly, the mutation in AtANN8 enhanced RPW8.1-triggered H2 O2 . In addition, mutation in AtANN8 led to hypersensitivity to salt stress. Together, our data indicate that AtANN8 is involved in multiple stress signaling pathways and negatively regulates RPW8.1-mediated resistance against powdery mildew and cell death, thus linking ANNEXIN's function with plant immunity.
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Affiliation(s)
- Zhi-Xue Zhao
- Rice Research Institute and Key Laboratory for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yong-Ju Xu
- Rice Research Institute and Key Laboratory for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yang Lei
- Rice Research Institute and Key Laboratory for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qin Li
- Rice Research Institute and Key Laboratory for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ji-Qun Zhao
- Rice Research Institute and Key Laboratory for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yan Li
- Rice Research Institute and Key Laboratory for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jing Fan
- Rice Research Institute and Key Laboratory for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shunyuan Xiao
- Institute for Bioscience and Biotechnology Research & Department of Plant Science and Landscape Architecture, University of Maryland, Rockville, Maryland, 20850, USA
| | - Wen-Ming Wang
- Rice Research Institute and Key Laboratory for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
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Li J, Zheng L, Fan Y, Wang Y, Ma Y, Gu D, Lu Y, Zhang S, Chen X, Zhang W. Pear metal transport protein PbMTP8.1 confers manganese tolerance when expressed in yeast and Arabidopsis thaliana. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111687. [PMID: 33396019 DOI: 10.1016/j.ecoenv.2020.111687] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/15/2020] [Accepted: 11/17/2020] [Indexed: 06/12/2023]
Abstract
Manganese (Mn) is demonstrated to be essential for plants. Ion homeostasis is maintained in plant cells by specialized transporters. PbMTP8.1, which encodes a putative Mn-CDF transporter in Pyrus bretschneideri Rehd, was expressed mainly in leaves and complemented the Mn hypersensitivity of the Mn-sensitive yeast mutant △pmr1 in previous research conducted by our laboratory. In the present study, we report that the expression of PbMTP8.1 can enhance Mn tolerance and accumulation in Saccharomyces cerevisiae. Subcellular localization analysis of the PbMTP8.1-GFP fusion protein indicated that PbMTP8.1 was targeted to the pre-vacuolar compartment (PVC). In addition, the overexpression of PbMTP8.1 in Arabidopsis thaliana conferred increased resistance to plants under toxic Mn levels, as indicated by increased fresh and dry weights of shoots and roots. Mn accumulation in vacuoles of PbMTP8.1-overexpressing plants was significantly increased when compared with that in wild-type plants under Mn stress. This suggests that a considerable proportion of Mn enters into the vacuoles through a PbMTP8.1-dependent mechanism. Taken together, these results indicate PbMTP8.1 is a Mn-specific transporter that is localized to the PVC, and confers Mn tolerance by sequestering Mn into the vacuole.
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Affiliation(s)
- Jiyu Li
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China; Institute of Horticulture, Anhui Academy of Agricultural Sciences, Hefei, Anhui 230031, China; Key Laboratory of Genetic Improvement and Ecophysiology of Horticultural Crops, Hefei, Anhui 230031, China.
| | - Lu Zheng
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Ye Fan
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Yuerong Wang
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Yurou Ma
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Dongfang Gu
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Yaping Lu
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Shaoling Zhang
- Center of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Xi Chen
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Wei Zhang
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
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Alfatih A, Wu J, Jan SU, Zhang ZS, Xia JQ, Xiang CB. Loss of rice PARAQUAT TOLERANCE 3 confers enhanced resistance to abiotic stresses and increases grain yield in field. PLANT, CELL & ENVIRONMENT 2020; 43:2743-2754. [PMID: 32691446 DOI: 10.1111/pce.13856] [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: 06/12/2020] [Revised: 07/11/2020] [Accepted: 07/15/2020] [Indexed: 05/23/2023]
Abstract
Plants frequently suffer from environmental stresses in nature and have evolved sophisticated and efficient mechanisms to cope with the stresses. To balance between growth and stress response, plants are equipped with efficient means to switch off the activated stress responses when stresses diminish. We previously revealed such an off-switch mechanism conferred by Arabidopsis PARAQUAT TOLERANCE 3 (AtPQT3) encoding an E3 ubiquitin ligase, knockout of which significantly enhances resistance to abiotic stresses. To explore whether the rice homologue OsPQT3 is functionally conserved, we generated three knockout mutants with CRISPR-Cas9 technology. The OsPQT3 knockout mutants (ospqt3) display enhanced resistance to oxidative and salt stress with elevated expression of OsGPX1, OsAPX1 and OsSOD1. More importantly, the ospqt3 mutants show significantly enhanced agronomic performance with higher yield compared with the wild type under salt stress in greenhouse as well as in field conditions. We further showed that OsPQT3 expression rapidly decreased in response to oxidative and other abiotic stresses as AtPQT3 does. Taken together, these results show that OsPQT3 is functionally well conserved in rice as an off-switch in stress response as AtPQT3 in Arabidopsis. Therefore, PQT3 locus provides a promising candidate for crop improvement with enhanced stress resistance by gene editing technology.
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Affiliation(s)
- Alamin Alfatih
- School of Life Sciences and Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, University of Science and Technology of China, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Hefei, China
| | - Jie Wu
- School of Life Sciences and Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, University of Science and Technology of China, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Hefei, China
| | - Sami Ullah Jan
- School of Life Sciences and Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, University of Science and Technology of China, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Hefei, China
| | - Zi-Sheng Zhang
- School of Life Sciences and Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, University of Science and Technology of China, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Hefei, China
| | - Jin-Qiu Xia
- School of Life Sciences and Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, University of Science and Technology of China, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Hefei, China
| | - Cheng-Bin Xiang
- School of Life Sciences and Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, University of Science and Technology of China, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Hefei, China
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Kwon C, Lee JH, Yun HS. SNAREs in Plant Biotic and Abiotic Stress Responses. Mol Cells 2020; 43:501-508. [PMID: 32597393 PMCID: PMC7332363 DOI: 10.14348/molcells.2020.0007] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 02/07/2023] Open
Abstract
In eukaryotes, membraneous cellular compartmentation essentially requires vesicle trafficking for communications among distinct organelles. A donor organelle-generated vesicle releases its cargo into a target compartment by fusing two distinct vesicle and target membranes. Vesicle fusion, the final step of vesicle trafficking, is driven intrinsically by complex formation of soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs). Although SNAREs are well-conserved across eukaryotes, genomic studies revealed that plants have dramatically increased the number of SNARE genes than other eukaryotes. This increase is attributed to the sessile nature of plants, likely for more sensitive and harmonized responses to environmental stresses. In this review, we therefore try to summarize and discuss the current understanding of plant SNAREs function in responses to biotic and abiotic stresses.
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Affiliation(s)
- Chian Kwon
- Department of Molecular Biology, Dankook University, Cheonan 36, Korea
- These authors contributed equally to this work.
| | - Jae-Hoon Lee
- Department of Biology Education, Pusan National University, Busan 4641, Korea
- These authors contributed equally to this work.
| | - Hye Sup Yun
- Department of Biological Sciences, Konkuk University, Seoul 05029, Korea
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Laterals take it better - Emerging and young lateral roots survive lethal salinity longer than the primary root in Arabidopsis. Sci Rep 2020; 10:3291. [PMID: 32094490 PMCID: PMC7040039 DOI: 10.1038/s41598-020-60163-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 02/06/2020] [Indexed: 11/16/2022] Open
Abstract
Plant responses to salinity have been extensively studied over the last decades. Despite the vast accumulated knowledge, the ways Arabidopsis lateral roots (LR) cope with lethal salinity has not been fully resolved. Here we compared the primary root (PR) and the LR responses during events leading to lethal salinity (NaCl 200 mM) in Arabidopsis. We found that the PR and young LR responded differently to lethal salinity: While the PR died, emerging and young LR’s remained strikingly viable. Moreover, “age acquired salt tolerance” (AAST) was observed in the PR. During the 2 days after germination (DAG) the PR was highly sensitive, but at 8 DAG there was a significant increase in the PR cell survival. Nevertheless, the young LR exhibited an opposite pattern and completely lost its salinity tolerance, as it elongated beyond 400 µm. Examination of several cell death signatures investigated in the young LR showed no signs of an active programmed cell death (PCD) during lethal salinity. However, Autophagic PCD (A-PCD) but not apoptosis-like PCD (AL-PCD) was found to be activated in the PR during the high salinity conditions. We further found that salinity induced NADPH oxidase activated ROS, which were more highly distributed in the young LR compared to the PR, is required for the improved viability of the LR during lethal salinity conditions. Our data demonstrated a position-dependent resistance of Arabidopsis young LR to high salinity. This response can lead to identification of novel salt stress coping mechanisms needed by agriculture during the soil salinization challenge.
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Salinas-Cornejo J, Madrid-Espinoza J, Ruiz-Lara S. Identification and transcriptional analysis of SNARE vesicle fusion regulators in tomato (Solanum lycopersicum) during plant development and a comparative analysis of the response to salt stress with wild relatives. JOURNAL OF PLANT PHYSIOLOGY 2019; 242:153018. [PMID: 31472447 DOI: 10.1016/j.jplph.2019.153018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 07/25/2019] [Accepted: 07/31/2019] [Indexed: 06/10/2023]
Abstract
Intracellular vesicular trafficking ensures the exchange of lipids and proteins between the membranous compartments. Soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNARE) play a central role in membrane fusion and they are key factors for vesicular trafficking in plants, including crops economically important such as tomato (Solanum lycopersicum). Taking advantage of the complete genome sequence available of S. lycopersicum, we identified 63 genes that encode putative SNARE proteins. Then, phylogenetic analysis allowed the classification of SNAREs in five main groups and recognizing their possible functions. A structure analysis of the genes, their syntenic relationships and their location in the chromosomes were also carried out for their characterization. In addition, the expression profiles of SNARE genes in different tissues were investigated using microarray-based analysis. The results indicated that specific SNAREs had a higher induction in leaf, root, flower and mature green fruit. S. lycopersicum is characterized for being a crop sensitive to saline stress unlike its wild relatives, such as Solanum pennellii, Solanum pimpinellifolium, Solanum habrochaites or Solanum chilense, which are tolerant. In this context, we analyzed different microarrays and evaluated and validated the transcript levels through qRT-PCR experiments. The results showed that SlGOS12.2, SlVAMP727 and SlSYP51.2 could have a positive relationship with salt stress and probably an important role in their tolerance. All these data increase our knowledge and can also be utilized to identify potential molecular targets for conferring tolerance to various stresses in tomato.
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Affiliation(s)
- Josselyn Salinas-Cornejo
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca 3460000, Chile.
| | - José Madrid-Espinoza
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca 3460000, Chile.
| | - Simón Ruiz-Lara
- Laboratorio de Genómica Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca 3460000, Chile.
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36
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Madina MH, Rahman MS, Zheng H, Germain H. Vacuolar membrane structures and their roles in plant-pathogen interactions. PLANT MOLECULAR BIOLOGY 2019; 101:343-354. [PMID: 31621005 DOI: 10.1007/s11103-019-00921-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 10/04/2019] [Indexed: 06/10/2023]
Abstract
Short review focussing on the role and targeting of vacuolar substructure in plant immunity and pathogenesis. Plants lack specialized immune cells, therefore each plant cell must defend itself against invading pathogens. A typical plant defense strategy is the hypersensitive response that results in host cell death at the site of infection, a process largely regulated by the vacuole. In plant cells, the vacuole is a vital organelle that plays a central role in numerous fundamental processes, such as development, reproduction, and cellular responses to biotic and abiotic stimuli. It shows divergent membranous structures that are continuously transforming. Recent technical advances in visualization and live-cell imaging have significantly altered our view of the vacuolar structures and their dynamics. Understanding the active nature of the vacuolar structures and the mechanisms of vacuole-mediated defense responses is of great importance in understanding plant-pathogen interactions. In this review, we present an overview of the current knowledge about the vacuole and its internal structures, as well as their role in plant-microbe interactions. There is so far limited information on the modulation of the vacuolar structures by pathogens, but recent research has identified the vacuole as a possible target of microbial interference.
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Affiliation(s)
- Mst Hur Madina
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, 3351 boulevard des Forges, Trois-Rivières, QC, G9A 5H7, Canada
| | - Md Saifur Rahman
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, 3351 boulevard des Forges, Trois-Rivières, QC, G9A 5H7, Canada
| | - Huanquan Zheng
- Department of Biology, McGill University, 1205 Dr. Penfield Avenue, Montreal, QC, H3A 1B1, Canada
| | - Hugo Germain
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, 3351 boulevard des Forges, Trois-Rivières, QC, G9A 5H7, Canada.
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Awwad F, Bertrand G, Grandbois M, Beaudoin N. Reactive Oxygen Species Alleviate Cell Death Induced by Thaxtomin A in Arabidopsis thaliana Cell Cultures. PLANTS (BASEL, SWITZERLAND) 2019; 8:E332. [PMID: 31489878 PMCID: PMC6784117 DOI: 10.3390/plants8090332] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/26/2019] [Accepted: 09/03/2019] [Indexed: 01/20/2023]
Abstract
Thaxtomin A (TA) is a cellulose biosynthesis inhibitor synthesized by the soil actinobacterium Streptomyces scabies, which is the main causal agent of potato common scab. TA is essential for the induction of scab lesions on potato tubers. When added to Arabidopsis thaliana cell cultures, TA induces an atypical programmed cell death (PCD). Although production of reactive oxygen species (ROS) often correlates with the induction of PCD, we observed a decrease in ROS levels following TA treatment. We show that this decrease in ROS accumulation in TA-treated cells is not due to the activation of antioxidant enzymes. Moreover, Arabidopsis cell cultures treated with hydrogen peroxide (H2O2) prior to TA treatment had significantly fewer dead cells than cultures treated with TA alone. This suggests that H2O2 induces biochemical or molecular changes in cell cultures that alleviate the activation of PCD by TA. Investigation of the cell wall mechanics using atomic force microscopy showed that H2O2 treatment can prevent the decrease in cell wall rigidity observed after TA exposure. While we cannot exclude the possibility that H2O2 may promote cell survival by altering the cellular redox environment or signaling pathways, our results suggest that H2O2 may inhibit cell death, at least partially, by reinforcing the cell wall to prevent or compensate for damages induced by TA.
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Affiliation(s)
- Fatima Awwad
- Centre SÈVE, Département de Biologie, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada.
- Groupe de Recherche en Biologie Végétale, Département de Chimie, Biochimie et Physique, Université du Québec à Trois-Rivières, Trois-Rivières, QC G9A 5H7, Canada.
| | - Guillaume Bertrand
- Institut de Pharmacologie de Sherbrooke, Département de Pharmacologie et Physiologie, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Michel Grandbois
- Institut de Pharmacologie de Sherbrooke, Département de Pharmacologie et Physiologie, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Nathalie Beaudoin
- Centre SÈVE, Département de Biologie, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada.
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Yichie Y, Hasan MT, Tobias PA, Pascovici D, Goold HD, Van Sluyter SC, Roberts TH, Atwell BJ. Salt-Treated Roots of Oryza australiensis Seedlings are Enriched with Proteins Involved in Energetics and Transport. Proteomics 2019; 19:e1900175. [PMID: 31475433 DOI: 10.1002/pmic.201900175] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 08/05/2019] [Indexed: 11/08/2022]
Abstract
Salinity is a major constraint on rice productivity worldwide. However, mechanisms of salt tolerance in wild rice relatives are unknown. Root microsomal proteins are extracted from two Oryza australiensis accessions contrasting in salt tolerance. Whole roots of 2-week-old seedlings are treated with 80 mM NaCl for 30 days to induce salt stress. Proteins are quantified by tandem mass tags (TMT) and triple-stage Mass Spectrometry. More than 200 differentially expressed proteins between the salt-treated and control samples in the two accessions (p-value <0.05) are found. Gene Ontology (GO) analysis shows that proteins categorized as "metabolic process," "transport," and "transmembrane transporter" are highly responsive to salt treatment. In particular, mitochondrial ATPases and SNARE proteins are more abundant in roots of the salt-tolerant accession and responded strongly when roots are exposed to salinity. mRNA quantification validated the elevated protein abundances of a monosaccharide transporter and an antiporter observed in the salt-tolerant genotype. The importance of the upregulated monosaccharide transporter and a VAMP-like protein by measuring salinity responses of two yeast knockout mutants for genes homologous to those encoding these proteins in rice are confirmed. Potential new mechanisms of salt tolerance in rice, with implications for breeding of elite cultivars are also discussed.
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Affiliation(s)
- Yoav Yichie
- Sydney Institute of Agriculture, University of Sydney, Sydney, Australia
| | - Mafruha T Hasan
- Sydney Institute of Agriculture, University of Sydney, Sydney, Australia
| | - Peri A Tobias
- Sydney Institute of Agriculture, University of Sydney, Sydney, Australia
| | - Dana Pascovici
- Australian Proteome Analysis Facility, Department of Molecular Sciences, Macquarie University, Sydney, Australia
| | - Hugh D Goold
- NSW Department of Primary Industries, Macquarie University, Sydney, Australia.,Department of Molecular Sciences, Macquarie University, Sydney, Australia
| | | | - Thomas H Roberts
- Sydney Institute of Agriculture, University of Sydney, Sydney, Australia
| | - Brian J Atwell
- Department of Biological Sciences, Macquarie University, Sydney, Australia
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Rosquete MR, Worden N, Ren G, Sinclair RM, Pfleger S, Salemi M, Phinney BS, Domozych D, Wilkop T, Drakakaki G. AtTRAPPC11/ROG2: A Role for TRAPPs in Maintenance of the Plant Trans-Golgi Network/Early Endosome Organization and Function. THE PLANT CELL 2019; 31:1879-1898. [PMID: 31175171 PMCID: PMC6713296 DOI: 10.1105/tpc.19.00110] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/06/2019] [Accepted: 06/02/2019] [Indexed: 05/14/2023]
Abstract
The dynamic trans-Golgi network/early endosome (TGN/EE) facilitates cargo sorting and trafficking and plays a vital role in plant development and environmental response. Transport protein particles (TRAPPs) are multi-protein complexes acting as guanine nucleotide exchange factors and possibly as tethers, regulating intracellular trafficking. TRAPPs are essential in all eukaryotic cells and are implicated in a number of human diseases. It has been proposed that they also play crucial roles in plants; however, our current knowledge about the structure and function of plant TRAPPs is very limited. Here, we identified and characterized AtTRAPPC11/RESPONSE TO OLIGOGALACTURONIDE2 (AtTRAPPC11/ROG2), a TGN/EE-associated, evolutionarily conserved TRAPP protein in Arabidopsis (Arabidopsis thaliana). AtTRAPPC11/ROG2 regulates TGN integrity, as evidenced by altered TGN/EE association of several residents, including SYNTAXIN OF PLANTS61, and altered vesicle morphology in attrappc11/rog2 mutants. Furthermore, endocytic traffic and brefeldin A body formation are perturbed in attrappc11/rog2, suggesting a role for AtTRAPPC11/ROG2 in regulation of endosomal function. Proteomic analysis showed that AtTRAPPC11/ROG2 defines a hitherto uncharacterized TRAPPIII complex in plants. In addition, attrappc11/rog2 mutants are hypersensitive to salinity, indicating an undescribed role of TRAPPs in stress responses. Overall, our study illustrates the plasticity of the endomembrane system through TRAPP protein functions and opens new avenues to explore this dynamic network.
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Affiliation(s)
| | - Natasha Worden
- Department of Plant Sciences University of California, Davis, California 95616
| | - Guangxi Ren
- Department of Plant Sciences University of California, Davis, California 95616
| | - Rosalie M Sinclair
- Department of Plant Sciences University of California, Davis, California 95616
| | - Sina Pfleger
- Department of Plant Sciences University of California, Davis, California 95616
| | - Michelle Salemi
- Genome Center, University of California, Davis, California 95616
| | - Brett S Phinney
- Genome Center, University of California, Davis, California 95616
| | - David Domozych
- Department of Biology and Skidmore Microscopy Imaging Center, Skidmore College, Saratoga Springs, New York 12866
| | - Thomas Wilkop
- Department of Plant Sciences University of California, Davis, California 95616
- Light Microscopy Core, University of Kentucky, Lexington, Kentucky 40536
| | - Georgia Drakakaki
- Department of Plant Sciences University of California, Davis, California 95616
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40
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Yang X, Liao CY, Tang J, Bassham DC. Overexpression of trans-Golgi network t-SNAREs rescues vacuolar trafficking and TGN morphology defects in a putative tethering factor mutant. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 99:703-716. [PMID: 31009161 DOI: 10.1111/tpj.14353] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 03/25/2019] [Accepted: 04/17/2019] [Indexed: 06/09/2023]
Abstract
The trans-Golgi network (TGN) is a major site for sorting of cargo to either the vacuole or apoplast. The TGN-localized coiled-coil protein TNO1 is a putative tethering factor that interacts with the TGN t-SNARE SYP41 and is required for correct localization of the SYP61 t-SNARE. An Arabidopsis thaliana tno1 mutant is hypersensitive to salt stress and partially mislocalizes vacuolar proteins to the apoplast, indicating a role in vacuolar trafficking. Here, we show that overexpression of SYP41 or SYP61 significantly increases SYP41-SYP61 complex formation in a tno1 mutant, and rescues the salt sensitivity and defective vacuolar trafficking of the tno1 mutant. The TGN is disrupted and vesicle budding from Golgi cisternae is reduced in the tno1 mutant, and these defects are also rescued by overexpression of SYP41 or SYP61. Our results suggest that the trafficking and Golgi morphology defects caused by loss of TNO1 can be rescued by increasing SYP41-SYP61 t-SNARE complex formation, implicating TNO1 as a tethering factor mediating efficient vesicle fusion at the TGN.
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Affiliation(s)
- Xiaochen Yang
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA
| | - Ching-Yi Liao
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA
| | - Jie Tang
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA
| | - Diane C Bassham
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA
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41
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Pan L, Yu X, Shao J, Liu Z, Gao T, Zheng Y, Zeng C, Liang C, Chen C. Transcriptomic profiling and analysis of differentially expressed genes in asparagus bean (Vigna unguiculata ssp. sesquipedalis) under salt stress. PLoS One 2019; 14:e0219799. [PMID: 31299052 PMCID: PMC6625716 DOI: 10.1371/journal.pone.0219799] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 07/01/2019] [Indexed: 01/17/2023] Open
Abstract
Asparagus bean (Vigna unguiculata ssp. sesquipedalis) is a warm season legume which is widely distributed over subtropical regions and semiarid areas. It is mainly grown as a significant protein source in developing countries. Salinity, as one of the main abiotic stress factors, constrains the normal growth and yield of asparagus bean. This study used two cultivars (a salt-sensitive genotype and a salt-tolerant genotype) under salt stress vs. control to identify salt-stress-induced genes in asparagus bean using RNA sequencing. A total of 692,086,838 high-quality clean reads, assigned to 121,138 unigenes, were obtained from control and salt-treated libraries. Then, 216 root-derived DEGs (differentially expressed genes) and 127 leaf-derived DEGs were identified under salt stress between the two cultivars. Of these DEGs, thirteen were assigned to six transcription factors (TFs), including AP2/EREBP, CCHC(Zn), C2H2, WRKY, WD40-like and LIM. GO analysis indicated four DEGs might take effects on the "oxidation reduction", "transport" and "signal transduction" process. Moreover, expression of nine randomly-chosen DEGs was verified by quantitative real-time-PCR (qRT-PCR) analysis. Predicted function of the nine tested DEGs was mainly involved in the KEGG pathway of cation transport, response to osmotic stress, and phosphorelay signal transduction system. A salt-stress-related pathway of "SNARE interactions in vesicular transport" was concerned. As byproducts, 15, 321 microsatellite markers were found in all the unigenes, and 17 SNP linked to six salt-stress induced DEGs were revealed. These candidate genes provide novel insights for understanding the salt tolerance mechanism of asparagus bean in the future.
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Affiliation(s)
- Lei Pan
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
- Computational Biology Institute and Center for Biomolecular Sciences, Department of Physics, The George Washington University, Washington, DC, United States of America
| | - Xiaolu Yu
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Jingjie Shao
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Zhichao Liu
- Computational Biology Institute and Center for Biomolecular Sciences, Department of Physics, The George Washington University, Washington, DC, United States of America
| | - Tong Gao
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Yu Zheng
- Institute for Interdisciplinary Research, Jianghan University, Wuhan, China
| | - Chen Zeng
- Computational Biology Institute and Center for Biomolecular Sciences, Department of Physics, The George Washington University, Washington, DC, United States of America
| | - Chengzhi Liang
- Institute of Genetics and Development, Chinese Academy of Sciences, Beijing, China
| | - Chanyou Chen
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
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42
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Xue Y, Zhao S, Yang Z, Guo Y, Yang Y. Regulation of plasma membrane H +-ATPase activity by the members of the V-SNARE VAMP7C family in arabidopsis thaliana. PLANT SIGNALING & BEHAVIOR 2019; 14:e1573097. [PMID: 30720384 PMCID: PMC6422389 DOI: 10.1080/15592324.2019.1573097] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/09/2019] [Accepted: 01/15/2019] [Indexed: 05/27/2023]
Abstract
The plasma membrane (PM) H+-ATPase plays an important role in response to environmental stress, such as salt-alkaline stress. We have reported that the N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) protein Vesicle-associated membrane protein 711 (VAMP711) is involved in drought stress by regulating PM H+-ATPase activity directly. In this study, we report that VAMP7C (VAMP711-14) represses PM H+-ATPase activity in response to high-pH stress. The Arabidopsis PM H+-ATPase AHA2 interacts with VAMP7C. The longin domain of VAMP711 interacts with AHA2 to inhibit PM H+-ATPase activity on the plasma membrane. The alkaline phenotype of vamp711 and vamp711 vamp712 vamp713 triple mutants suggested that VAMP7C was functionally redundant in regulating PM H+-ATPase activity in response to high-pH stress.
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Affiliation(s)
- Yuan Xue
- College of Biological Sciences, China Agricultural University, Beijing, China
| | - Shuangshuang Zhao
- Key Laboratory of Plant Stress, Life Science College, Shandong Normal University, Jinan, China
| | - Zhijia Yang
- College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yan Guo
- College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yongqing Yang
- College of Biological Sciences, China Agricultural University, Beijing, China
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Smirnoff N, Arnaud D. Hydrogen peroxide metabolism and functions in plants. THE NEW PHYTOLOGIST 2019; 221:1197-1214. [PMID: 30222198 DOI: 10.1111/nph.15488] [Citation(s) in RCA: 379] [Impact Index Per Article: 75.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 08/28/2018] [Indexed: 05/18/2023]
Abstract
Contents Summary 1197 I. Introduction 1198 II. Measurement and imaging of H2 O2 1198 III. H2 O2 and O2·- toxicity 1199 IV. Production of H2 O2 : enzymes and subcellular locations 1200 V. H2 O2 transport 1205 VI. Control of H2 O2 concentration: how and where? 1205 VII. Metabolic functions of H2 O2 1207 VIII. H2 O2 signalling 1207 IX. Where next? 1209 Acknowledgements 1209 References 1209 SUMMARY: Hydrogen peroxide (H2 O2 ) is produced, via superoxide and superoxide dismutase, by electron transport in chloroplasts and mitochondria, plasma membrane NADPH oxidases, peroxisomal oxidases, type III peroxidases and other apoplastic oxidases. Intracellular transport is facilitated by aquaporins and H2 O2 is removed by catalase, peroxiredoxin, glutathione peroxidase-like enzymes and ascorbate peroxidase, all of which have cell compartment-specific isoforms. Apoplastic H2 O2 influences cell expansion, development and defence by its involvement in type III peroxidase-mediated polymer cross-linking, lignification and, possibly, cell expansion via H2 O2 -derived hydroxyl radicals. Excess H2 O2 triggers chloroplast and peroxisome autophagy and programmed cell death. The role of H2 O2 in signalling, for example during acclimation to stress and pathogen defence, has received much attention, but the signal transduction mechanisms are poorly defined. H2 O2 oxidizes specific cysteine residues of target proteins to the sulfenic acid form and, similar to other organisms, this modification could initiate thiol-based redox relays and modify target enzymes, receptor kinases and transcription factors. Quantification of the sources and sinks of H2 O2 is being improved by the spatial and temporal resolution of genetically encoded H2 O2 sensors, such as HyPer and roGFP2-Orp1. These H2 O2 sensors, combined with the detection of specific proteins modified by H2 O2 , will allow a deeper understanding of its signalling roles.
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Affiliation(s)
- Nicholas Smirnoff
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK
| | - Dominique Arnaud
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK
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44
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Palumbo F, Qi P, Pinto VB, Devos KM, Barcaccia G. Construction of the First SNP-Based Linkage Map Using Genotyping-by-Sequencing and Mapping of the Male-Sterility Gene in Leaf Chicory. FRONTIERS IN PLANT SCIENCE 2019; 10:276. [PMID: 30915092 PMCID: PMC6421318 DOI: 10.3389/fpls.2019.00276] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 02/20/2019] [Indexed: 05/12/2023]
Abstract
We report the first high-density linkage map construction through genotyping-by-sequencing (GBS) in leaf chicory (Cichorium intybus subsp. intybus var. foliosum, 2n = 2x = 18) and the SNP-based fine mapping of the linkage group region carrying a recessive gene responsible for male-sterility (ms1). An experimental BC1 population, segregating for the male sterility trait, was specifically generated and 198 progeny plants were preliminary screened through a multiplexed SSR genotyping analysis for the identification of microsatellite markers linked to the ms1 locus. Two backbone SSR markers belonging to linkage group 4 of the available Cichorium consensus map were found genetically associated to the ms1 gene at 5.8 and 12.1 cM apart. A GBS strategy was then used to produce a high-density SNP-based linkage map, containing 727 genomic loci organized into 9 linkage groups and spanning a total length of 1,413 cM. 13 SNPs proved to be tightly linked to the ms1 locus based on a subset of 44 progeny plants analyzed. The map position of these markers was further validated by sequence-specific PCR experiments using an additional set of 64 progeny plants, enabling to verify that four of them fully co-segregated with male-sterility. A mesosynteny analysis revealed that 10 genomic DNA sequences encompassing the 13 selected SNPs of chicory mapped in a peripheral region of chromosome 5 of lettuce (Lactuca sativa L.) spanning about 18 Mbp. Since a MYB103-like gene, encoding for a transcription factor involved in callose dissolution of tetrads and exine development of microspores, was found located in the same chromosomal region, this orthologous was chosen as candidate for male-sterility. The amplification and sequencing of its CDS using accessions with contrasting phenotypes/genotypes (i.e., 4 male sterile mutants, ms1ms1, and 4 male fertile inbreds, Ms1Ms1) enabled to detect an INDEL of 4 nucleotides in its second exon, responsible for an anticipated stop codon in the male sterile mutants. This polymorphism was subsequently validated through allele-specific PCR assays and found to fully co-segregate with male-sterility, using 64 progeny plants of the same mapping BC1 population. Overall, our molecular data could be practically exploited for genotyping plant materials and for marker-assisted breeding schemes in leaf chicory.
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Affiliation(s)
- Fabio Palumbo
- Laboratory of Genomics for Plant Breeding, Department of Agronomy Food Natural Resources Animals and Environment (DAFNAE), University of Padova, Legnaro, Italy
| | - Peng Qi
- Institute of Plant Breeding, Genetics and Genomics, Department of Plant Biology, University of Georgia, Athens, GA, United States
- Institute of Plant Breeding, Genetics and Genomics, Department of Crop and Soil Sciences, University of Georgia, Athens, GA, United States
| | | | - Katrien M. Devos
- Institute of Plant Breeding, Genetics and Genomics, Department of Plant Biology, University of Georgia, Athens, GA, United States
- Institute of Plant Breeding, Genetics and Genomics, Department of Crop and Soil Sciences, University of Georgia, Athens, GA, United States
| | - Gianni Barcaccia
- Laboratory of Genomics for Plant Breeding, Department of Agronomy Food Natural Resources Animals and Environment (DAFNAE), University of Padova, Legnaro, Italy
- *Correspondence: Gianni Barcaccia,
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Genome-wide identification of the HKT genes in five Rosaceae species and expression analysis of HKT genes in response to salt-stress in Fragaria vesca. Genes Genomics 2018; 41:325-336. [DOI: 10.1007/s13258-018-0767-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 11/13/2018] [Indexed: 11/26/2022]
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46
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Xue Y, Yang Y, Yang Z, Wang X, Guo Y. VAMP711 Is Required for Abscisic Acid-Mediated Inhibition of Plasma Membrane H +-ATPase Activity. PLANT PHYSIOLOGY 2018; 178:1332-1343. [PMID: 30217827 PMCID: PMC6236615 DOI: 10.1104/pp.18.00499] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 09/01/2018] [Indexed: 05/20/2023]
Abstract
Drought stress is a limiting environmental factor that affects plant growth and development. The plant hormone abscisic acid (ABA) plays an important role in plant drought responses. Previous studies have indicated that ABA inhibits plasma membrane H+-ATPase (PM H+-ATPase) activity, and the decrease in PM H+-ATPase activity promotes stomatal closure under drought stress, thereby reducing water loss. However, the underlying molecular mechanisms are not well understood. In this study, we found that in Arabidopsis (Arabidopsis thaliana), ABA induces an N-ethylmaleimide-sensitive factor attachment protein receptor protein, namely, VESICLE-ASSOCIATED MEMBRANE PROTEIN 711 (VAMP711), to interact with the Arabidopsis PM H+-ATPases AHA1 and AHA2. The interaction occurs at their C-termini and inhibits PM H+-ATPase activity. Deletion of VAMP711 in Arabidopsis results in a higher PM H+-ATPase activity and slower stomatal closure in response to ABA and drought treatments. In addition, overexpression of VAMP711 partially rescues the drought-sensitive phenotype of ost2-2D, a mutation in AHA1 resulting in a constitutive activated PM H+-ATPase. Our results demonstrate that VAMP711 is involved in regulating ABA-mediated inhibition of PM H+-ATPase activity and stomatal closure in response to drought stress.
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Affiliation(s)
- Yuan Xue
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yongqing Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Zhijia Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xiangfeng Wang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yan Guo
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
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Zhou H, Wang C, Tan T, Cai J, He J, Lin H. Patellin1 Negatively Modulates Salt Tolerance by Regulating PM Na+/H+ Antiport Activity and Cellular Redox Homeostasis in Arabidopsis. PLANT & CELL PHYSIOLOGY 2018; 59:1630-1642. [PMID: 29684208 DOI: 10.1093/pcp/pcy081] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 04/16/2018] [Indexed: 06/08/2023]
Abstract
Soil salinity significantly represses plant development and growth. Mechanisms involved sodium (Na+) extrusion and compartmentation, intracellular membrane trafficking as well as redox homeostasis regulation play important roles in plant salt tolerance. In this study, we report that Patellin1 (PATL1), a membrane trafficking-related protein, modulates salt tolerance in Arabidopsis. The T-DNA insertion mutant of PATL1 (patl1) with an elevated PATL1 transcription level displays a salt-sensitive phenotype. PATL1 partially associates with the plasma membrane (PM) and endosomal system, and might participate in regulating membrane trafficking. Interestingly, PATL1 interacts with SOS1, a PM Na+/H+ antiporter in the Salt-Overly-Sensitive (SOS) pathway, and the PM Na+/H+ antiport activity is lower in patl1 than in Col-0. Furthermore, the reactive oxygen species (ROS) content is higher in patl1 and the redox signaling of antioxidants is partially disrupted in patl1 under salt stress conditions. Artificial elimination of ROS could partially rescue the salt-sensitive phenotype of patl1. Taken together, our results indicate that PATL1 participates in plant salt tolerance by regulating Na+ transport at least in part via SOS1, and by modulating cellular redox homeostasis during salt stress.
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Affiliation(s)
- Huapeng Zhou
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Chongwu Wang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Tinghong Tan
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Jingqing Cai
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Jiaxian He
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Honghui Lin
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
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48
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Yang Y, Guo Y. Elucidating the molecular mechanisms mediating plant salt-stress responses. THE NEW PHYTOLOGIST 2018; 217:523-539. [PMID: 29205383 DOI: 10.1111/nph.14920] [Citation(s) in RCA: 611] [Impact Index Per Article: 101.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 10/11/2017] [Indexed: 05/18/2023]
Abstract
Contents Summary 523 I. Introduction 523 II. Sensing salt stress 524 III. Ion homeostasis regulation 524 IV. Metabolite and cell activity responses to salt stress 527 V. Conclusions and perspectives 532 Acknowledgements 533 References 533 SUMMARY: Excess soluble salts in soil (saline soils) are harmful to most plants. Salt imposes osmotic, ionic, and secondary stresses on plants. Over the past two decades, many determinants of salt tolerance and their regulatory mechanisms have been identified and characterized using molecular genetics and genomics approaches. This review describes recent progress in deciphering the mechanisms controlling ion homeostasis, cell activity responses, and epigenetic regulation in plants under salt stress. Finally, we highlight research areas that require further research to reveal new determinants of salt tolerance in plants.
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Affiliation(s)
- Yongqing Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yan Guo
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
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Zeng Y, Li Q, Wang H, Zhang J, Du J, Feng H, Blumwald E, Yu L, Xu G. Two NHX-type transporters from Helianthus tuberosus improve the tolerance of rice to salinity and nutrient deficiency stress. PLANT BIOTECHNOLOGY JOURNAL 2018; 16:310-321. [PMID: 28627026 PMCID: PMC5785360 DOI: 10.1111/pbi.12773] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 05/30/2017] [Accepted: 06/08/2017] [Indexed: 05/18/2023]
Abstract
The NHX-type cation/H+ transporters in plants have been shown to mediate Na+ (K+ )/H+ exchange for salinity tolerance and K+ homoeostasis. In this study, we identified and characterized two NHX homologues, HtNHX1 and HtNHX2 from an infertile and salinity tolerant species Helianthus tuberosus (cv. Nanyu No. 1). HtNHX1 and HtNHX2 share identical 5'- and 3'-UTR and coding regions, except for a 342-bp segment encoding 114 amino acids (L272 to Q385 ) which is absent in HtNHX2. Both hydroponics and soil culture experiments showed that the expression of HtNHX1 or HtNHX2 improved the rice tolerance to salinity. Expression of HtNHX2, but not HtNHX1, increased rice grain yield, harvest index, total nutrient uptake under K+ -limited salt-stress or general nutrient deficiency conditions. The results provide a novel insight into NHX function in plant mineral nutrition.
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Affiliation(s)
- Yang Zeng
- State Key Laboratory of Crop Genetics and Germplasm EnhancementNanjing Agricultural UniversityNanjingChina
- Key Laboratory of Plant Nutrition and Fertilization in Low‐Middle Reaches of the Yangtze RiverMinistry of AgricultureNanjing Agricultural UniversityNanjingChina
| | - Qing Li
- Key Laboratory of Plant Nutrition and Fertilization in Low‐Middle Reaches of the Yangtze RiverMinistry of AgricultureNanjing Agricultural UniversityNanjingChina
| | - Haiya Wang
- State Key Laboratory of Crop Genetics and Germplasm EnhancementNanjing Agricultural UniversityNanjingChina
- Key Laboratory of Plant Nutrition and Fertilization in Low‐Middle Reaches of the Yangtze RiverMinistry of AgricultureNanjing Agricultural UniversityNanjingChina
| | - Jianliang Zhang
- State Key Laboratory of Crop Genetics and Germplasm EnhancementNanjing Agricultural UniversityNanjingChina
- Key Laboratory of Plant Nutrition and Fertilization in Low‐Middle Reaches of the Yangtze RiverMinistry of AgricultureNanjing Agricultural UniversityNanjingChina
| | - Jia Du
- State Key Laboratory of Crop Genetics and Germplasm EnhancementNanjing Agricultural UniversityNanjingChina
- Key Laboratory of Plant Nutrition and Fertilization in Low‐Middle Reaches of the Yangtze RiverMinistry of AgricultureNanjing Agricultural UniversityNanjingChina
| | - Huimin Feng
- State Key Laboratory of Crop Genetics and Germplasm EnhancementNanjing Agricultural UniversityNanjingChina
- Key Laboratory of Plant Nutrition and Fertilization in Low‐Middle Reaches of the Yangtze RiverMinistry of AgricultureNanjing Agricultural UniversityNanjingChina
| | | | - Ling Yu
- State Key Laboratory of Crop Genetics and Germplasm EnhancementNanjing Agricultural UniversityNanjingChina
- Key Laboratory of Plant Nutrition and Fertilization in Low‐Middle Reaches of the Yangtze RiverMinistry of AgricultureNanjing Agricultural UniversityNanjingChina
| | - Guohua Xu
- State Key Laboratory of Crop Genetics and Germplasm EnhancementNanjing Agricultural UniversityNanjingChina
- Key Laboratory of Plant Nutrition and Fertilization in Low‐Middle Reaches of the Yangtze RiverMinistry of AgricultureNanjing Agricultural UniversityNanjingChina
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50
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Khaleda L, Park HJ, Yun DJ, Jeon JR, Kim MG, Cha JY, Kim WY. Humic Acid Confers HIGH-AFFINITY K+ TRANSPORTER 1-Mediated Salinity Stress Tolerance in Arabidopsis. Mol Cells 2017; 40:966-975. [PMID: 29276942 PMCID: PMC5750715 DOI: 10.14348/molcells.2017.0229] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/05/2017] [Accepted: 11/05/2017] [Indexed: 11/27/2022] Open
Abstract
Excessive salt disrupts intracellular ion homeostasis and inhibits plant growth, which poses a serious threat to global food security. Plants have adapted various strategies to survive in unfavorable saline soil conditions. Here, we show that humic acid (HA) is a good soil amendment that can be used to help overcome salinity stress because it markedly reduces the adverse effects of salinity on Arabidopsis thaliana seedlings. To identify the molecular mechanisms of HA-induced salt stress tolerance in Arabidopsis, we examined possible roles of a sodium influx transporter HIGH-AFFINITY K+ TRANSPORTER 1 (HKT1). Salt-induced root growth inhibition in HKT1 overexpressor transgenic plants (HKT1-OX) was rescued by application of HA, but not in wild-type and other plants. Moreover, salt-induced degradation of HKT1 protein was blocked by HA treatment. In addition, the application of HA to HKT1-OX seedlings led to increased distribution of Na+ in roots up to the elongation zone and caused the reabsorption of Na+ by xylem and parenchyma cells. Both the influx of the secondary messenger calcium and its cytosolic release appear to function in the destabilization of HKT1 protein under salt stress. Taken together, these results suggest that HA could be applied to the field to enhance plant growth and salt stress tolerance via post-transcriptional control of the HKT1 transporter gene under saline conditions.
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Affiliation(s)
- Laila Khaleda
- Division of Applied Life Science (BK21Plus), Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Research Institute of Life Sciences (RILS), Gyeongsang National University, Jinju 52828,
Korea
| | - Hee Jin Park
- Institute of Glocal Disease Control, Konkuk University, Seoul 05029,
Korea
- Department of Biomedical Science and Engineering, Konkuk University, Seoul 05029,
Korea
| | - Dae-Jin Yun
- Department of Biomedical Science and Engineering, Konkuk University, Seoul 05029,
Korea
| | - Jong-Rok Jeon
- Department of Agriculture Chemistry and Food Science & Technology, Institute of Agriculture and Life Science (IALS), Gyeongsang National University, Jinju 52828,
Korea
| | - Min Gab Kim
- College of Pharmacy and Research Institute of Pharmaceutical Science, PMBBRC, Gyeongsang National University, Jinju 52828,
Korea
| | - Joon-Yung Cha
- Division of Applied Life Science (BK21Plus), Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Research Institute of Life Sciences (RILS), Gyeongsang National University, Jinju 52828,
Korea
| | - Woe-Yeon Kim
- Division of Applied Life Science (BK21Plus), Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Research Institute of Life Sciences (RILS), Gyeongsang National University, Jinju 52828,
Korea
- Department of Agriculture Chemistry and Food Science & Technology, Institute of Agriculture and Life Science (IALS), Gyeongsang National University, Jinju 52828,
Korea
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