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Yoon HS, Fujino K, Liu S, Takano T, Tsugama D. VIP1 and its close homologs confer mechanical stress tolerance in Arabidopsis leaves. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109021. [PMID: 39137679 DOI: 10.1016/j.plaphy.2024.109021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 07/19/2024] [Accepted: 08/05/2024] [Indexed: 08/15/2024]
Abstract
VIP1, an Arabidopsis thaliana basic leucine zipper transcription factor, and its close homologs are imported from the cytoplasm to the nucleus when cells are exposed to mechanical stress. They bind to AGCTG (G/T) and regulate mechanical stress responses in roots. However, their role in leaves is unclear. To clarify this, mutant lines (QM1 and QM2) that lack the functions of VIP1 and its close homologs (bZIP29, bZIP30 and PosF21) were generated. Brushing more severely damaged QM1 and QM2 leaves than wild-type leaves. Genes regulating stress responses and cell wall properties were downregulated in brushed QM2 leaves and upregulated in brushed VIP1-GFP-overexpressing (VIP1-GFPox) leaves compared to wild-type leaves in a transcriptome analysis. The VIP1-binding sequence AGCTG (G/T) was enriched in the promoters of genes downregulated in brushed QM2 leaves compared to wild-type leaves and in those upregulated in brushed VIP1-GFPox leaves. Calmodulin-binding transcription activators (CAMTAs) are known regulators of mechanical stress responses, and the CAMTA-binding sequence CGCGT was enriched in the promoters of genes upregulated in the brushed QM2 leaves and in those downregulated in the brushed VIP1-GFPox leaves. These findings suggest that VIP1 and its homologs upregulate genes via AGCTG (G/T) and influence CAMTA-dependent gene expression to enhance mechanical stress tolerance in leaves.
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Affiliation(s)
- Hyuk Sung Yoon
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo-shi, Tokyo, 188-0002, Japan.
| | - Kaien Fujino
- Laboratory of Crop Physiology, Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9 Kita-ku, Sapporo-shi, Hokkaido, 060-8589, Japan.
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, Hangzhou, 311300, PR China.
| | - Tetsuo Takano
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo-shi, Tokyo, 188-0002, Japan.
| | - Daisuke Tsugama
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo-shi, Tokyo, 188-0002, Japan.
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Qazi M, Gupta SK, Takano T, Tsugama D. Overexpression of a pearl millet WRKY transcription factor gene, PgWRKY74, in Arabidopsis retards shoot growth under dehydration and salinity-stressed conditions. Biotechnol Lett 2024; 46:851-860. [PMID: 38717664 DOI: 10.1007/s10529-024-03492-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/26/2024] [Accepted: 04/14/2024] [Indexed: 09/21/2024]
Abstract
Pearl millet (Cenchrus americanus) is a cereal crop that can tolerate high temperatures, drought, and low-fertility conditions where other crops lose productivity. However, genes regulating this ability are largely unknown. Transcription factors (TFs) regulate transcription of their target genes, regulate downstream biological processes, and thus are candidates for regulators of such tolerance of pearl millet. PgWRKY74 encodes a group IIc WRKY TF in pearl millet and is downregulated by drought. PgWRKY74 may have a role in drought tolerance. The objective of this study was to gain insights into the physiological and biochemical functions of PgWRKY74. Yeast one-hybrid and gel shift assays were performed to examine transcriptional activation potential and deoxyribonucleic acid (DNA)-binding ability, respectively. Transgenic Arabidopsis thaliana plants overexpressing PgWRKY74-green fluorescent protein (GFP) fusion gene were generated and tested for growth and stress-responsive gene expression under mannitol and NaCl-stressed conditions. A construct with PgWRKY74 enabled yeast reporter cells to survive on test media in the yeast one-hybrid assays. The electrophoretic mobility of DNA with putative WRKY TF-binding motifs was lower in the presence of a recombinant PgWRKY74 protein than its absence. The PgWRKY74-GFP-overexpressing Arabidopsis plants exhibited smaller rosette areas than did wild-type plants under mannitol-stressed and NaCl-stressed conditions, and exhibited weaker expression of RD29B, which is induced by the stress-related phytohormone abscisic acid (ABA), under the mannitol-stressed condition. PgWRKY74 have transcriptional activation potential and DNA-binding ability, and can negatively regulate plant responses to mannitol and NaCl stresses, possibly by decreasing ABA levels or ABA sensitivity.
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Affiliation(s)
- Maimuna Qazi
- Asian Research Center for Bioresource and Environmental Sciences (ARC-BRES), Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-Cho, Nishi-Tokyo-Shi, Tokyo, 188-0002, Japan
| | - Shashi Kumar Gupta
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, Telangana, India
| | - Tetsuo Takano
- Asian Research Center for Bioresource and Environmental Sciences (ARC-BRES), Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-Cho, Nishi-Tokyo-Shi, Tokyo, 188-0002, Japan
| | - Daisuke Tsugama
- Asian Research Center for Bioresource and Environmental Sciences (ARC-BRES), Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-Cho, Nishi-Tokyo-Shi, Tokyo, 188-0002, Japan.
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3
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Wang X, Cheng L, Xiong C, Whalley WR, Miller AJ, Rengel Z, Zhang F, Shen J. Understanding plant-soil interactions underpins enhanced sustainability of crop production. TRENDS IN PLANT SCIENCE 2024:S1360-1385(24)00126-2. [PMID: 38897884 DOI: 10.1016/j.tplants.2024.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/17/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024]
Abstract
The Green Revolution transformed agriculture with high-yielding, stress-resistant varieties. However, the urgent need for more sustainable agricultural development presents new challenges: increasing crop yield, improving nutritional quality, and enhancing resource-use efficiency. Soil plays a vital role in crop-production systems and ecosystem services, providing water, nutrients, and physical anchorage for crop growth. Despite advancements in plant and soil sciences, our understanding of belowground plant-soil interactions, which impact both crop performance and soil health, remains limited. Here, we argue that a lack of understanding of these plant-soil interactions hinders sustainable crop production. We propose that targeted engineering of crops and soils can provide a fresh approach to achieve higher yields, more efficient sustainable crop production, and improved soil health.
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Affiliation(s)
- Xin Wang
- State Key Laboratory of Nutrient Use and Management, Department of Plant Nutrition, College of Resources and Environmental Sciences, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, China; State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Lingyun Cheng
- State Key Laboratory of Nutrient Use and Management, Department of Plant Nutrition, College of Resources and Environmental Sciences, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, China
| | - Chuanyong Xiong
- State Key Laboratory of Nutrient Use and Management, Department of Plant Nutrition, College of Resources and Environmental Sciences, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, China; Horticultural Research Institute, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China
| | - William R Whalley
- Rothamsted Research, West Common, Harpenden, Hertfordshire, AL5 2JQ, UK
| | - Anthony J Miller
- Biochemistry and Metabolism Department, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Zed Rengel
- Soil Science and Plant Nutrition, UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia; Institute for Adriatic Crops and Karst Reclamation, 21000 Split, Croatia
| | - Fusuo Zhang
- State Key Laboratory of Nutrient Use and Management, Department of Plant Nutrition, College of Resources and Environmental Sciences, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, China
| | - Jianbo Shen
- State Key Laboratory of Nutrient Use and Management, Department of Plant Nutrition, College of Resources and Environmental Sciences, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, China.
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4
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Coomey JH, MacKinnon KJM, McCahill IW, Khahani B, Handakumbura PP, Trabucco GM, Mazzola J, Leblanc NA, Kheam R, Hernandez-Romero M, Barry K, Liu L, Lee JE, Vogel JP, O’Malley RC, Chambers JJ, Hazen SP. Mechanically induced localisation of SECONDARY WALL INTERACTING bZIP is associated with thigmomorphogenic and secondary cell wall gene expression. QUANTITATIVE PLANT BIOLOGY 2024; 5:e5. [PMID: 38774130 PMCID: PMC11106548 DOI: 10.1017/qpb.2024.5] [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: 08/09/2023] [Revised: 03/22/2024] [Accepted: 04/03/2024] [Indexed: 05/24/2024]
Abstract
Plant growth requires the integration of internal and external cues, perceived and transduced into a developmental programme of cell division, elongation and wall thickening. Mechanical forces contribute to this regulation, and thigmomorphogenesis typically includes reducing stem height, increasing stem diameter, and a canonical transcriptomic response. We present data on a bZIP transcription factor involved in this process in grasses. Brachypodium distachyon SECONDARY WALL INTERACTING bZIP (SWIZ) protein translocated into the nucleus following mechanostimulation. Classical touch-responsive genes were upregulated in B. distachyon roots following touch, including significant induction of the glycoside hydrolase 17 family, which may be unique to grass thigmomorphogenesis. SWIZ protein binding to an E-box variant in exons and introns was associated with immediate activation followed by repression of gene expression. SWIZ overexpression resulted in plants with reduced stem and root elongation. These data further define plant touch-responsive transcriptomics and physiology, offering insights into grass mechanotranduction dynamics.
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Affiliation(s)
- Joshua H. Coomey
- Biology Department, University of Massachusetts, Amherst, MA, USA
- Plant Biology Graduate Program, University of Massachusetts, Amherst, MA, USA
| | - Kirk J.-M. MacKinnon
- Biology Department, University of Massachusetts, Amherst, MA, USA
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, MA, USA
| | - Ian W. McCahill
- Biology Department, University of Massachusetts, Amherst, MA, USA
- Plant Biology Graduate Program, University of Massachusetts, Amherst, MA, USA
| | - Bahman Khahani
- Biology Department, University of Massachusetts, Amherst, MA, USA
- Plant Biology Graduate Program, University of Massachusetts, Amherst, MA, USA
| | - Pubudu P. Handakumbura
- Biology Department, University of Massachusetts, Amherst, MA, USA
- Plant Biology Graduate Program, University of Massachusetts, Amherst, MA, USA
| | - Gina M. Trabucco
- Biology Department, University of Massachusetts, Amherst, MA, USA
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, MA, USA
| | - Jessica Mazzola
- Biology Department, University of Massachusetts, Amherst, MA, USA
| | | | - Rithany Kheam
- Biology Department, University of Massachusetts, Amherst, MA, USA
| | - Miriam Hernandez-Romero
- Biology Department, University of Massachusetts, Amherst, MA, USA
- Plant Biology Graduate Program, University of Massachusetts, Amherst, MA, USA
| | - Kerrie Barry
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Lifeng Liu
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Ji E. Lee
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - John P. Vogel
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Ronan C. O’Malley
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - James J. Chambers
- Institute for Applied Life Science, University of Massachusetts, Amherst, MA, USA
| | - Samuel P. Hazen
- Biology Department, University of Massachusetts, Amherst, MA, USA
- Plant Biology Graduate Program, University of Massachusetts, Amherst, MA, USA
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, MA, USA
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5
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Ren H, Zhang Y, Zhong M, Hussian J, Tang Y, Liu S, Qi G. Calcium signaling-mediated transcriptional reprogramming during abiotic stress response in plants. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:210. [PMID: 37728763 DOI: 10.1007/s00122-023-04455-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/28/2023] [Indexed: 09/21/2023]
Abstract
Calcium (Ca2+) is a second messenger in plants growth and development, as well as in stress responses. The transient elevation in cytosolic Ca2+ concentration have been reported to be involved in plants response to abiotic and biotic stresses. In plants, Ca2+-induced transcriptional changes trigger molecular mechanisms by which plants adapt and respond to environment stresses. The mechanism for transcription regulation by Ca2+ could be either rapid in which Ca2+ signals directly cause the related response through the gene transcript and protein activities, or involved amplification of Ca2+ signals by up-regulation the expression of Ca2+ responsive genes, and then increase the transmission of Ca2+ signals. Ca2+ regulates the expression of genes by directly binding to the transcription factors (TFs), or indirectly through its sensors like calmodulin, calcium-dependent protein kinases (CDPK) and calcineurin B-like protein (CBL). In recent years, significant progress has been made in understanding the role of Ca2+-mediated transcriptional regulation in different processes in plants. In this review, we have provided a comprehensive overview of Ca2+-mediated transcriptional regulation in plants in response to abiotic stresses including nutrition deficiency, temperature stresses (like heat and cold), dehydration stress, osmotic stress, hypoxic, salt stress, acid rain, and heavy metal stress.
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Affiliation(s)
- Huimin Ren
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, Zhejiang, China
| | - Yuting Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, Zhejiang, China
| | - Minyi Zhong
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, Zhejiang, China
| | - Jamshaid Hussian
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, University Road, Abbottabad, 22060, Pakistan
| | - Yuting Tang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, Zhejiang, China
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, Zhejiang, China.
| | - Guoning Qi
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, Zhejiang, China.
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The Course of Mechanical Stress: Types, Perception, and Plant Response. BIOLOGY 2023; 12:biology12020217. [PMID: 36829495 PMCID: PMC9953051 DOI: 10.3390/biology12020217] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023]
Abstract
Mechanical stimuli, together with the corresponding plant perception mechanisms and the finely tuned thigmomorphogenetic response, has been of scientific and practical interest since the mid-17th century. As an emerging field, there are many challenges in the research of mechanical stress. Indeed, studies on different plant species (annual/perennial) and plant organs (stem/root) using different approaches (field, wet lab, and in silico/computational) have delivered insufficient findings that frequently impede the practical application of the acquired knowledge. Accordingly, the current work distils existing mechanical stress knowledge by bringing in side-by-side the research conducted on both stem and roots. First, the various types of mechanical stress encountered by plants are defined. Second, plant perception mechanisms are outlined. Finally, the different strategies employed by the plant stem and roots to counteract the perceived mechanical stresses are summarized, depicting the corresponding morphological, phytohormonal, and molecular characteristics. The comprehensive literature on both perennial (woody) and annual plants was reviewed, considering the potential benefits and drawbacks of the two plant types, which allowed us to highlight current gaps in knowledge as areas of interest for future research.
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Yoon HS, Fujino K, Liu S, Takano T, Tsugama D. NDR/LATS-family protein kinase genes are indispensable for embryogenesis in Arabidopsis. FEBS Open Bio 2021; 11:2600-2606. [PMID: 34320276 PMCID: PMC8409290 DOI: 10.1002/2211-5463.13257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/16/2021] [Accepted: 07/27/2021] [Indexed: 11/10/2022] Open
Abstract
NDR/LATS‐family protein kinases are conserved among eukaryotes. These protein kinases in yeast and animals phosphorylate specific targets and regulate the cell cycle. Arabidopsis thaliana has eight NDR/LATS‐family protein kinase genes (NDR1‐8), of which NDR2, NDR4, and NDR5 are involved in regulating pollen development. However, the functions of the other NDR/LATS‐family protein kinase genes in plants are unclear. Here, we show that three putative phosphorylation sites of an Arabidopsis basic leucine zipper transcription factor, VIP1, correspond to NDR/LATS‐family protein kinase phosphorylation motifs and that two of these three sites are phosphorylated by NDR2, NDR3, or NDR8 in vitro. Expression of NDR1‐8 was detected in various tissues. An NDR4 NDR6 NDR7 NDR8 quadruple mutation caused embryonic lethality These results suggest that different NDR/LATS‐family protein kinases in plants have distinct physiological roles.
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Affiliation(s)
- Hyuk Sung Yoon
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Nishitokyo-shi, Japan
| | - Kaien Fujino
- Laboratory of Crop Physiology, Research Faculty of Agriculture, Hokkaido University, Sapporo-shi, Japan
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, China
| | - Tetsuo Takano
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Nishitokyo-shi, Japan
| | - Daisuke Tsugama
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Nishitokyo-shi, Japan
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8
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Ghosh R, Barbacci A, Leblanc-Fournier N. Mechanostimulation: a promising alternative for sustainable agriculture practices. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2877-2888. [PMID: 33512423 DOI: 10.1093/jxb/erab036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
Plants memorize events associated with environmental fluctuations. The integration of environmental signals into molecular memory allows plants to cope with future stressors more efficiently-a phenomenon that is known as 'priming'. Primed plants are more resilient to environmental stresses than non-primed plants, as they are capable of triggering more robust and faster defence responses. Interestingly, exposure to various forms of mechanical stimuli (e.g. touch, wind, or sound vibration) enhances plants' basal defence responses and stress tolerance. Thus, mechanostimulation appears to be a potential priming method and a promising alternative to chemical-based priming for sustainable agriculture. According to the currently available method, mechanical treatment needs to be repeated over a month to alter plant growth and defence responses. Such a long treatment protocol restricts its applicability to fast-growing crops. To optimize the protocol for a broad range of crops, we need to understand the molecular mechanisms behind plant mechanoresponses, which are complex and depend on the frequency, intervals, and duration of the mechanical treatment. In this review, we synthesize the molecular underpinnings of plant mechanoperception and signal transduction to gain a mechanistic understanding of the process of mechanostimulated priming.
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Affiliation(s)
- Ritesh Ghosh
- Université Clermont Auvergne, INRAE, Laboratoire de Physique et Physiologie intégratives de l'Arbre en environnement Fluctuant (PIAF), 63000 Clermont-Ferrand, France
| | - Adelin Barbacci
- Université de Toulouse, INRAE, CNRS, Laboratoire des Interactions Plantes Micro-organismes (LIPM), 31326 Castanet-Tolosan, France
| | - Nathalie Leblanc-Fournier
- Université Clermont Auvergne, INRAE, Laboratoire de Physique et Physiologie intégratives de l'Arbre en environnement Fluctuant (PIAF), 63000 Clermont-Ferrand, France
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9
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Xiong Y, Fan XH, Wang Q, Yin ZG, Sheng XW, Chen J, Zhou YB, Chen M, Ma YZ, Ma J, Xu ZS. Genomic Analysis of Soybean PP2A-B ' ' Family and Its Effects on Drought and Salt Tolerance. FRONTIERS IN PLANT SCIENCE 2021; 12:784038. [PMID: 35195114 PMCID: PMC8847135 DOI: 10.3389/fpls.2021.784038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 12/30/2021] [Indexed: 05/05/2023]
Abstract
Abiotic stresses induce the accumulation of reactive oxygen species (ROS) and significantly affect plant growth. Protein phosphatase 2A (PP2A) plays an important role in controlling intracellular and extracellular ROS signals. However, the interaction between PP2A, ROS, and stress tolerance remains largely unclear. In this study, we found that the B ' ' subunit of PP2A (PP2A-B ' ' ) can be significantly induced and was analyzed using drought- and salt-induced soybean transcriptome data. Eighty-three soybean PP2A-B ' ' genes were identified from the soybean genome via homologous sequence alignment, which was distributed across 20 soybean chromosomes. Among soybean PP2A-B ' ' family genes, 26 GmPP2A-B ' ' members were found to be responsive to drought and salt stresses in soybean transcriptome data. Quantitative PCR (qPCR) analysis demonstrated that GmPP2A-B ' ' 71 had the highest expression levels under salt and drought stresses. Functional analysis demonstrated that overexpression of GmPP2A-B ' ' 71 in soybeans can improve plant tolerance to drought and salt stresses; however, the interference of GmPP2A-B ' ' 71 in soybean increased the sensibility to drought and salt stresses. Further analysis demonstrated that overexpression of GmPP2A-B ' ' 71 in soybean could enhance the expression levels of stress-responsive genes, particularly genes associated with ROS elimination. These results indicate that PP2A-B ' ' can promote plant stress tolerance by regulating the ROS signaling, which will contribute to improving the drought resistance of crops.
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Affiliation(s)
- Yang Xiong
- College of Agronomy, Jilin Agricultural University, Changchun, China
- Institute of Crop Science, 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, China
| | - Xu-Hong Fan
- Soybean Research Institute, Jilin Academy of Agricultural Sciences/National Engineering Research Center for Soybean, Changchun, China
| | - Qiang Wang
- Crop Resources Institute of Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Zheng-Gong Yin
- Crop Resources Institute of Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Xue-Wen Sheng
- College of Modern Agriculture, Changchun Vocational Institute of Technology, Changchun, China
| | - Jun Chen
- Institute of Crop Science, 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, China
| | - Yong-Bin Zhou
- Institute of Crop Science, 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, China
| | - Ming Chen
- Institute of Crop Science, 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, China
| | - You-Zhi Ma
- Institute of Crop Science, 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, China
| | - Jian Ma
- College of Agronomy, Jilin Agricultural University, Changchun, China
- *Correspondence: Jian Ma,
| | - Zhao-Shi Xu
- College of Agronomy, Jilin Agricultural University, Changchun, China
- Institute of Crop Science, 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, China
- Zhao-Shi Xu,
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10
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Yoon HS, Fujino K, Liu S, Takano T, Tsugama D. The B″-family subunits of protein phosphatase 2A are necessary for in-vitro dephosphorylation of the Arabidopsis mechanosensory transcription factor VIP1. Biochem Biophys Res Commun 2020; 534:353-358. [PMID: 33342519 DOI: 10.1016/j.bbrc.2020.11.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 11/28/2022]
Abstract
Protein phosphatase 2A (PP2A) B″-family subunits have Ca2+-binding EF-hand motifs and can bind PP2A substrates. Arabidopsis thaliana PP2A B″-family subunits are encoded by six genes, and bind a transcription factor, VIP1. VIP1 is dephosphorylated and nuclear-localized by hypo-osmotic stress. However, whether PP2A B″-family subunits mediate the VIP1 dephosphorylation is unclear. Here, we show by yeast two-hybrid and in vitro pull down assays that Arabidopsis PP2A B″-family subunits bind Arabidopsis PP2A A (scaffold) subunits. We also show that VIP1 dephosphorylation in vitro can be induced by a PP2A B″-family subunit.
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Affiliation(s)
- Hyuk Sung Yoon
- Asian Natural Environmental Science Center (ANESC), The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo-shi, Tokyo, 188-0002, Japan
| | - Kaien Fujino
- Laboratory of Crop Physiology, Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9 Kita-ku, Sapporo-shi, Hokkaido, 060-8589, Japan
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, Hangzhou, 311300, PR China
| | - Tetsuo Takano
- Asian Natural Environmental Science Center (ANESC), The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo-shi, Tokyo, 188-0002, Japan
| | - Daisuke Tsugama
- Asian Natural Environmental Science Center (ANESC), The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo-shi, Tokyo, 188-0002, Japan.
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11
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Wang X, Whalley WR, Miller AJ, White PJ, Zhang F, Shen J. Sustainable Cropping Requires Adaptation to a Heterogeneous Rhizosphere. TRENDS IN PLANT SCIENCE 2020; 25:1194-1202. [PMID: 32830043 DOI: 10.1016/j.tplants.2020.07.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/02/2020] [Accepted: 07/09/2020] [Indexed: 05/19/2023]
Abstract
Root-soil interactions in the rhizosphere are central to resource acquisition and crop production in agricultural systems. However, apart from studies in idealized experimental systems, rhizosphere processes in real agricultural soils in situ are largely uncharacterized. This limits the contribution of rhizosphere science to agriculture and the ongoing Green Revolution. Here, we argue that understanding plant responses to soil heterogeneity is key to understanding rhizosphere processes. We highlight rhizosphere sensing and root-induced soil modification in the context of heterogeneous soil structure, resource distribution, and root-soil interactions. A deeper understanding of the integrated and dynamic root-soil interactions in the heterogeneously structured rhizosphere could increase crop production and resource use efficiency towards sustainable agriculture.
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Affiliation(s)
- Xin Wang
- Department of Plant Nutrition, College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, PR China
| | | | | | - Philip J White
- Ecological Science Group, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK; National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China; Distinguished Scientist Fellowship Program, King Saud University, Riyadh 11451, Saudi Arabia
| | - Fusuo Zhang
- Department of Plant Nutrition, College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, PR China
| | - Jianbo Shen
- Department of Plant Nutrition, College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, PR China.
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Gong L, Zhang H, Liu X, Gan X, Nie F, Yang W, Zhang L, Chen Y, Song Y, Zhang H. Ectopic expression of HaNAC1, an ATAF transcription factor from Haloxylon ammodendron, improves growth and drought tolerance in transgenic Arabidopsis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 151:535-544. [PMID: 32305820 DOI: 10.1016/j.plaphy.2020.04.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 04/05/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
NAC transcription factors play a pivotal role in plant growth, development and response to abiotic stress. However, their biological functions in desert trees are largely unknown. In this work, the NAC transcription factor HaNAC1 from Haloxylon ammodendron, a typical wooden plant normally grown in desert, was isolated, and its possible role in plant growth and resistance to drought stress was investigated. HaNAC1 encodes an ATAF subfamily transcription factor containing one NAC domain with five conserved regions. Quantitative real time PCR analyses revealed that HaNAC1 was ubiquitously expressed in various tissues and organs such as roots, stems, leaves and seeds, with a predominant expression in stems. Further studies demonstrated that expression of HaNAC1 was significantly induced by osmotic stress in Haloxylon ammodendron seedlings, and subcellular localization analysis indicated that GFP-HaNAC1 fusion protein was localized to the nucleus in Arabidopsis leaf protoplast. Ectopic expression of HaNAC1 led to promoted growth and drought tolerance in transgenic Arabidopsis, accompanied with up-regulated expression of stress-inducible marker genes, and increased accumulation of proline, IAA and ABA under both normal and drought stress conditions. In addition, co-immunoprecipitation and Bi-molecular fluorescence complementation assays illustrated that HaNAC1 directly interacted with AtNAC32. All these results suggest that HaNAC1 is involved in both the growth and drought resistance of Haloxylon ammodendron, and could be used as a promising candidate gene for the breeding of crops with augmented tolerance to drought stress.
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Affiliation(s)
- Lei Gong
- Ningxia Key Laboratory for Agrobiotechnology, Agricultural Bio-Technology Center, Ningxia Academy of Agriculture and Forestry Science, 590 Huanghe East Road, Yinchuan, Ningxia Hui Nationality Autonomous Region, 750002, China
| | - Haiwen Zhang
- School of Life Sciences, Ningxia University, 489 Helanshan West Road, Yinchuan, Ningxia Hui Nationality Autonomous Region, 750021, China
| | - Xuan Liu
- Ningxia Key Laboratory for Agrobiotechnology, Agricultural Bio-Technology Center, Ningxia Academy of Agriculture and Forestry Science, 590 Huanghe East Road, Yinchuan, Ningxia Hui Nationality Autonomous Region, 750002, China
| | - Xiaoyan Gan
- Ningxia Key Laboratory for Agrobiotechnology, Agricultural Bio-Technology Center, Ningxia Academy of Agriculture and Forestry Science, 590 Huanghe East Road, Yinchuan, Ningxia Hui Nationality Autonomous Region, 750002, China
| | - Fengjie Nie
- Ningxia Key Laboratory for Agrobiotechnology, Agricultural Bio-Technology Center, Ningxia Academy of Agriculture and Forestry Science, 590 Huanghe East Road, Yinchuan, Ningxia Hui Nationality Autonomous Region, 750002, China
| | - Wenjing Yang
- Ningxia Key Laboratory for Agrobiotechnology, Agricultural Bio-Technology Center, Ningxia Academy of Agriculture and Forestry Science, 590 Huanghe East Road, Yinchuan, Ningxia Hui Nationality Autonomous Region, 750002, China
| | - Li Zhang
- Ningxia Key Laboratory for Agrobiotechnology, Agricultural Bio-Technology Center, Ningxia Academy of Agriculture and Forestry Science, 590 Huanghe East Road, Yinchuan, Ningxia Hui Nationality Autonomous Region, 750002, China
| | - Yuchao Chen
- Ningxia Key Laboratory for Agrobiotechnology, Agricultural Bio-Technology Center, Ningxia Academy of Agriculture and Forestry Science, 590 Huanghe East Road, Yinchuan, Ningxia Hui Nationality Autonomous Region, 750002, China
| | - Yuxia Song
- Ningxia Key Laboratory for Agrobiotechnology, Agricultural Bio-Technology Center, Ningxia Academy of Agriculture and Forestry Science, 590 Huanghe East Road, Yinchuan, Ningxia Hui Nationality Autonomous Region, 750002, China.
| | - Hongxia Zhang
- College of Agriculture, Ludong University, 186 Hongqizhong Road, Yantai, 264025, China; Key Laboratory of Molecular Module-Based Breeding of High Yield and Abiotic Resistant Plants in Universities of Shandong (Ludong University), 186 Hongqizhong Road, Yantai, Shandong Province, 264025, China.
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13
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A GDSL-type esterase/lipase gene, GELP77, is necessary for pollen dissociation and fertility in Arabidopsis. Biochem Biophys Res Commun 2020; 526:1036-1041. [DOI: 10.1016/j.bbrc.2020.03.179] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 03/30/2020] [Indexed: 02/02/2023]
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Yoon HS, Fujino K, Liu S, Takano T, Tsugama D. VIP1, a bZIP protein, interacts with the catalytic subunit of protein phosphatase 2A in Arabidopsis thaliana. PLANT SIGNALING & BEHAVIOR 2019; 15:1706026. [PMID: 31861962 PMCID: PMC7053879 DOI: 10.1080/15592324.2019.1706026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/12/2019] [Accepted: 12/14/2019] [Indexed: 06/10/2023]
Abstract
VirE2-INTERACTING PROTEIN1 (VIP1) is a basic leucine zipper protein in Arabidopsis thaliana. VIP1 changes its subcellular localization from the cytoplasm to the nucleus when cells are exposed to mechanical or hypo-osmotic stress. The nuclear localization of VIP1 is inhibited either by inhibitors of calcium signaling or by inhibitors of protein phosphatases 1, 2A and 4 (PP1, PP2A and PP4, respectively). VIP1 binds to the PP2A B"-family subunits, which have calcium-binding EF-hand motifs and which act as the regulatory, substrate-recruiting B subunit of PP2A. The VIP1 de-phosphorylation can therefore be mediated by PP2A. However, details of the PP2A-mediated de-phosphorylation of VIP1 are unclear. Here, with yeast two-hybrid assays and in-vitro pull-down assays, we show that VIP1 does not interact with the scaffolding A subunit of PP2A, but that VIP1 does interact with the catalytic C subunits. Our data raise the possibility that not only the B"-family B subunit of PP2A but also its C subunit contributes to the PP2A-mediated de-phosphorylation of VIP1.
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Affiliation(s)
- Hyuk Sung Yoon
- Asian Natural Environmental Science Center (ANESC), The University of Tokyo, Nishitokyo-shi, Japan
| | - Kaien Fujino
- Laboratory of Crop Physiology, Research Faculty of Agriculture, Hokkaido University, Hokkaido, Japan
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, P.R. China
| | - Tetsuo Takano
- Asian Natural Environmental Science Center (ANESC), The University of Tokyo, Nishitokyo-shi, Japan
| | - Daisuke Tsugama
- Asian Natural Environmental Science Center (ANESC), The University of Tokyo, Nishitokyo-shi, Japan
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15
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Tsugama D, Yoon HS, Fujino K, Liu S, Takano T. Protein phosphatase 2A regulates the nuclear accumulation of the Arabidopsis bZIP protein VIP1 under hypo-osmotic stress. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:6101-6112. [PMID: 31504762 PMCID: PMC6859724 DOI: 10.1093/jxb/erz384] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 08/16/2019] [Indexed: 05/21/2023]
Abstract
VIP1 is a bZIP transcription factor in Arabidopsis thaliana. When cells are exposed to mechanical stress, VIP1 transiently accumulates in the nucleus, where it regulates the expression of its target genes and suppresses mechanical stress-induced root waving. The nuclear-cytoplasmic shuttling of VIP1 is regulated by phosphorylation and calcium-dependent signaling, but specific regulators of these processes remain to be identified. Here, inhibitors of protein phosphatase 2A (PP2A) are shown to inhibit both the mechanical stress-induced dephosphorylation and nuclear accumulation of VIP1. The PP2A B subunit, which recruits substrates of PP2A holoenzyme, is classified into B, B', B'', and B''' families. Using bimolecular fluorescence complementation, in vitro pull-down, and yeast two-hybrid assays, we show that VIP1 interacts with at least two of the six members of the Arabidopsis PP2A B''-family subunit, which have calcium-binding EF-hand motifs. VIP1AAA, a constitutively nuclear-localized VIP1 variant with substitutions in putative phosphorylation sites of VIP1, suppressed the root waving induced by VIP1-SRDX (a repression domain-fused variant of VIP1). These results support the idea that VIP1 is dephosphorylated by PP2A and that the dephosphorylation suppresses the root waving. The phosphorylation sites of VIP1 and its homologs were narrowed down by in vitro phosphorylation, yeast two-hybrid, and protein subcellular localization assays.
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Affiliation(s)
- Daisuke Tsugama
- Asian Natural Environmental Science Center (ANESC), The University of Tokyo, Midori-cho, Nishitokyo-shi, Tokyo, Japan
- Laboratory of Crop Physiology, Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9 Kita-ku, Sapporo-shi, Hokkaido, Japan
- Correspondence:
| | - Hyuk Sung Yoon
- Asian Natural Environmental Science Center (ANESC), The University of Tokyo, Midori-cho, Nishitokyo-shi, Tokyo, Japan
- Laboratory of Crop Physiology, Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9 Kita-ku, Sapporo-shi, Hokkaido, Japan
| | - Kaien Fujino
- Laboratory of Crop Physiology, Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9 Kita-ku, Sapporo-shi, Hokkaido, Japan
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin’an, Hangzhou, PR China
| | - Tetsuo Takano
- Asian Natural Environmental Science Center (ANESC), The University of Tokyo, Midori-cho, Nishitokyo-shi, Tokyo, Japan
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16
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Liu D, Shi S, Hao Z, Xiong W, Luo M. OsbZIP81, A Homologue of Arabidopsis VIP1, May Positively Regulate JA Levels by Directly Targetting the Genes in JA Signaling and Metabolism Pathway in Rice. Int J Mol Sci 2019; 20:ijms20092360. [PMID: 31086007 PMCID: PMC6539606 DOI: 10.3390/ijms20092360] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/07/2019] [Accepted: 05/08/2019] [Indexed: 12/15/2022] Open
Abstract
Rice (Oryza sativa L.) is one of the most important food crops in the world. In plants, jasmonic acid (JA) plays essential roles in response to biotic and abiotic stresses. As one of the largest transcription factors (TFs), basic region/leucine zipper motif (bZIP) TFs play pivotal roles through the whole life of plant growth. However, the relationship between JA and bZIP TFs were rarely reported, especially in rice. In this study, we found two rice homologues of Arabidopsis VIP1 (VirE2-interacting protein 1), OsbZIP81, and OsbZIP84. OsbZIP81 has at least two alternative transcripts, OsbZIP81.1 and OsbZIP81.2. OsbZIP81.1 and OsbZIP84 are typical bZIP TFs, while OsbZIP81.2 is not. OsbZIP81.1 can directly bind OsPIOX and activate its expression. In OsbZIP81.1 overexpression transgenic rice plant, JA (Jasmonic Acid) and SA (Salicylic acid) were up-regulated, while ABA (Abscisic acid) was down-regulated. Moreover, Agrobacterium, Methyl Jasmonic Acid (MeJA), and PEG6000 can largely induce OsbZIP81. Based on ChIP-Seq and Random DNA Binding Selection Assay (RDSA), we identified a novel cis-element OVRE (Oryza VIP1 response element). Combining ChIP-Seq and RNA-Seq, we obtained 1332 targeted genes that were categorized in biotic and abiotic responses, including α-linolenic acid metabolism and fatty acid degradation. Together, these results suggest that OsbZIP81 may positively regulate JA levels by directly targeting the genes in JA signaling and metabolism pathway in rice.
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Affiliation(s)
- Defang Liu
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Shaopeng Shi
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Zhijun Hao
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Wentao Xiong
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Meizhong Luo
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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Tsugama D, Liu S, Fujino K, Takano T. B-family subunits of protein phosphatase 2A are necessary for pollen development but not for female gametophyte development in Arabidopsis. Biochem Biophys Res Commun 2018; 505:176-180. [PMID: 30243715 DOI: 10.1016/j.bbrc.2018.09.088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 09/13/2018] [Indexed: 11/30/2022]
Abstract
Protein phosphatase 2A (PP2A) is a heterotrimeric protein complex conserved among eukaryotes. The B subunit of PP2A determines the substrate specificity of the PP2A holoenzyme, and is classified into the B, B', B″ and B‴ families. Arabidopsis thaliana has two isoforms of the B-family subunit (ATBA and ATBB). A double knockout of their genes is lethal, but which developmental process is primarily impaired by the double knockout is unclear. Identifying such a process helps understand PP2A-mediated signaling more deeply. Here, genetic characterization of new knockout mutants for these genes shows that they are necessary for pollen development but not for female gametophyte development. Compared to wild-type pollen grains, the mutant pollen grains exhibited lower enzyme activities, germinated less frequently on stigmas, and exhibited the aberrant numbers of sperm cell nuclei, suggesting that ATBA and ATBB play pleiotropic roles in pollen development. The amino acids stabilizing the interaction between the human PP2A A and B-family subunits are conserved in an Arabidopsis A subunit (AtPP2AA2), ATBA and ATBB. His-tagged AtPP2AA2 co-immunoprecipitated with either Myc-tagged ATBA or Myc-tagged ATBB in vitro, confirming their interactions. Proteins that regulate pollen development and that undergo dephosphorylation are likely primary targets of ATBA and ATBB.
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Affiliation(s)
- Daisuke Tsugama
- Laboratory of Crop Physiology, Research Faculty of Agriculture, Hokkaido University Kita 9 Nishi 9 Kita-ku, Sapporo-shi, Hokkaido, 060-8589, Japan; Asian Natural Environmental Science Center, The University of Tokyo 1-1-1 Midori-cho, Nishitokyo-shi, Tokyo, 188-0002, Japan.
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, Hangzhou, 311300, PR China
| | - Kaien Fujino
- Laboratory of Crop Physiology, Research Faculty of Agriculture, Hokkaido University Kita 9 Nishi 9 Kita-ku, Sapporo-shi, Hokkaido, 060-8589, Japan
| | - Tetsuo Takano
- Asian Natural Environmental Science Center, The University of Tokyo 1-1-1 Midori-cho, Nishitokyo-shi, Tokyo, 188-0002, Japan
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18
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Tsugama D, Liu S, Fujino K, Takano T. Possible inhibition of Arabidopsis VIP1-mediated mechanosensory signaling by streptomycin. PLANT SIGNALING & BEHAVIOR 2018; 13:e1521236. [PMID: 30235047 PMCID: PMC6204804 DOI: 10.1080/15592324.2018.1521236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/24/2018] [Accepted: 08/29/2018] [Indexed: 05/21/2023]
Abstract
VIP1 (VIRE2-INTERACTING PROTEIN 1) and its close homologues are Arabidopsis thaliana bZIP proteins regulating stress responses and root tropisms. They are present in the cytoplasm under steady conditions, but transiently accumulate in the nucleus when cells are exposed to mechanical stress such as hypo-osmotic stress and touch. This pattern of changes in subcellular localization is unique to VIP1 and its close homologues, and can be useful to further characterize mechanical stress signaling in plants. A recent study showed that calcium signaling regulates this pattern of subcellular localization. Here, we show that a possible calcium channel inhibitor, streptomycin, also inhibits the nuclear accumulation of VIP1. Candidates for the specific regulators of the mechanosensitive calcium signaling are further discussed.
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Affiliation(s)
- Daisuke Tsugama
- Laboratory of Crop Physiology, Research Faculty of Agriculture, Hokkaido University, Hokkaido, Japan
- Asian Natural Environmental Science Center, The University of Tokyo, Tokyo, Japan
- CONTACT Daisuke Tsugama
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, P.R. China
| | - Kaien Fujino
- Laboratory of Crop Physiology, Research Faculty of Agriculture, Hokkaido University, Hokkaido, Japan
| | - Tetsuo Takano
- Asian Natural Environmental Science Center, The University of Tokyo, Tokyo, Japan
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