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Liu X, Gao T, Liu C, Mao K, Gong X, Li C, Ma F. Fruit crops combating drought: Physiological responses and regulatory pathways. PLANT PHYSIOLOGY 2023; 192:1768-1784. [PMID: 37002821 PMCID: PMC10315311 DOI: 10.1093/plphys/kiad202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 06/19/2023]
Abstract
Drought is a common stress in agricultural production. Thus, it is imperative to understand how fruit crops respond to drought and to develop drought-tolerant varieties. This paper provides an overview of the effects of drought on the vegetative and reproductive growth of fruits. We summarize the empirical studies that have assessed the physiological and molecular mechanisms of the drought response in fruit crops. This review focuses on the roles of calcium (Ca2+) signaling, abscisic acid (ABA), reactive oxygen species signaling, and protein phosphorylation underlying the early drought response in plants. We review the resulting downstream ABA-dependent and ABA-independent transcriptional regulation in fruit crops under drought stress. Moreover, we highlight the positive and negative regulatory mechanisms of microRNAs in the drought response of fruit crops. Lastly, strategies (including breeding and agricultural practices) to improve the drought resistance of fruit crops are outlined.
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Affiliation(s)
- Xiaomin Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Tengteng Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Changhai Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Ke Mao
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiaoqing Gong
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Chao Li
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
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2
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He L, Li L, Zhu Y, Pan Y, Zhang X, Han X, Li M, Chen C, Li H, Wang C. BolTLP1, a Thaumatin-like Protein Gene, Confers Tolerance to Salt and Drought Stresses in Broccoli ( Brassica oleracea L. var. Italica). Int J Mol Sci 2021. [PMID: 34681789 DOI: 10.3390/ijms222011132/s1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023] Open
Abstract
Plant thaumatin-like proteins (TLPs) play pleiotropic roles in defending against biotic and abiotic stresses. However, the functions of TLPs in broccoli, which is one of the major vegetables among the B. oleracea varieties, remain largely unknown. In the present study, bolTLP1 was identified in broccoli, and displayed remarkably inducible expression patterns by abiotic stress. The ectopic overexpression of bolTLP1 conferred increased tolerance to high salt and drought conditions in Arabidopsis. Similarly, bolTLP1-overexpressing broccoli transgenic lines significantly improved tolerance to salt and drought stresses. These results demonstrated that bolTLP1 positively regulates drought and salt tolerance. Transcriptome data displayed that bolTLP1 may function by regulating phytohormone (ABA, ethylene and auxin)-mediated signaling pathways, hydrolase and oxidoreductase activity, sulfur compound synthesis, and the differential expression of histone variants. Further studies confirmed that RESPONSE TO DESICCATION 2 (RD2), RESPONSIVE TO DEHYDRATION 22 (RD22), VASCULAR PLANT ONE-ZINC FINGER 2 (VOZ2), SM-LIKE 1B (LSM1B) and MALATE DEHYDROGENASE (MDH) physically interacted with bolTLP1, which implied that bolTLP1 could directly interact with these proteins to confer abiotic stress tolerance in broccoli. These findings provide new insights into the function and regulation of bolTLP1, and suggest potential applications for bolTLP1 in breeding broccoli and other crops with increased tolerance to salt and drought stresses.
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Affiliation(s)
- Lixia He
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Lihong Li
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yinxia Zhu
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yu Pan
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xiuwen Zhang
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xue Han
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Muzi Li
- College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China
| | - Chengbin Chen
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Hui Li
- College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China
| | - Chunguo Wang
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
- State Key Laboratory of Vegetable Germplasm Innovation, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China
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3
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He L, Li L, Zhu Y, Pan Y, Zhang X, Han X, Li M, Chen C, Li H, Wang C. BolTLP1, a Thaumatin-like Protein Gene, Confers Tolerance to Salt and Drought Stresses in Broccoli ( Brassica oleracea L. var. Italica). Int J Mol Sci 2021; 22:ijms222011132. [PMID: 34681789 PMCID: PMC8537552 DOI: 10.3390/ijms222011132] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/09/2021] [Accepted: 10/11/2021] [Indexed: 11/16/2022] Open
Abstract
Plant thaumatin-like proteins (TLPs) play pleiotropic roles in defending against biotic and abiotic stresses. However, the functions of TLPs in broccoli, which is one of the major vegetables among the B. oleracea varieties, remain largely unknown. In the present study, bolTLP1 was identified in broccoli, and displayed remarkably inducible expression patterns by abiotic stress. The ectopic overexpression of bolTLP1 conferred increased tolerance to high salt and drought conditions in Arabidopsis. Similarly, bolTLP1-overexpressing broccoli transgenic lines significantly improved tolerance to salt and drought stresses. These results demonstrated that bolTLP1 positively regulates drought and salt tolerance. Transcriptome data displayed that bolTLP1 may function by regulating phytohormone (ABA, ethylene and auxin)-mediated signaling pathways, hydrolase and oxidoreductase activity, sulfur compound synthesis, and the differential expression of histone variants. Further studies confirmed that RESPONSE TO DESICCATION 2 (RD2), RESPONSIVE TO DEHYDRATION 22 (RD22), VASCULAR PLANT ONE-ZINC FINGER 2 (VOZ2), SM-LIKE 1B (LSM1B) and MALATE DEHYDROGENASE (MDH) physically interacted with bolTLP1, which implied that bolTLP1 could directly interact with these proteins to confer abiotic stress tolerance in broccoli. These findings provide new insights into the function and regulation of bolTLP1, and suggest potential applications for bolTLP1 in breeding broccoli and other crops with increased tolerance to salt and drought stresses.
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Affiliation(s)
- Lixia He
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.H.); (L.L.); (Y.Z.); (Y.P.); (X.Z.); (X.H.); (C.C.)
| | - Lihong Li
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.H.); (L.L.); (Y.Z.); (Y.P.); (X.Z.); (X.H.); (C.C.)
| | - Yinxia Zhu
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.H.); (L.L.); (Y.Z.); (Y.P.); (X.Z.); (X.H.); (C.C.)
| | - Yu Pan
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.H.); (L.L.); (Y.Z.); (Y.P.); (X.Z.); (X.H.); (C.C.)
| | - Xiuwen Zhang
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.H.); (L.L.); (Y.Z.); (Y.P.); (X.Z.); (X.H.); (C.C.)
| | - Xue Han
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.H.); (L.L.); (Y.Z.); (Y.P.); (X.Z.); (X.H.); (C.C.)
| | - Muzi Li
- College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China;
| | - Chengbin Chen
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.H.); (L.L.); (Y.Z.); (Y.P.); (X.Z.); (X.H.); (C.C.)
| | - Hui Li
- College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China;
- Correspondence: (H.L.); (C.W.)
| | - Chunguo Wang
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China; (L.H.); (L.L.); (Y.Z.); (Y.P.); (X.Z.); (X.H.); (C.C.)
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
- State Key Laboratory of Vegetable Germplasm Innovation, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China
- Correspondence: (H.L.); (C.W.)
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Wang S, Liu J, Zhao T, Du C, Nie S, Zhang Y, Lv S, Huang S, Wang X. Modification of Threonine-1050 of SlBRI1 regulates BR Signalling and increases fruit yield of tomato. BMC PLANT BIOLOGY 2019; 19:256. [PMID: 31196007 PMCID: PMC6567510 DOI: 10.1186/s12870-019-1869-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 06/04/2019] [Indexed: 05/02/2023]
Abstract
BACKGROUND Appropriate brassinosteroid (BR) signal strength caused by exogenous application or endogenous regulation of BR-related genes can increase crop yield. However, precise control of BR signals is difficult and can cause unstable effects and failure to reach full potential. Phosphorylated BRASSINOSTEROID INSENSITIVE1 (BRI1), the rate-limiting receptor in BR signalling, transduces BR signals, and we recently demonstrated that modifying BRI1 phosphorylation sites alters BR signal strength and botanical characteristics in Arabidopsis. However, the functions of such phosphorylation sites in agronomic characteristics of crops remain unclear. RESULTS In this work, we investigated the roles of tomato SlBRI1 threonine-1050 (Thr-1050). SlBRI1 mutant cu3-abs1 plants expressing SlBRI1 with a non-phosphorylatable Thr-1050 (T1050A), with a wild-type SlBRI1 transformant used as a control, were examined. The results showed enhanced autophosphorylation of SlBRI1 and BR signal strength for cu3-abs1 harbouring T1050A, which promoted yield through increased plant expansion, leaf area, fruit weight and fruit number per cluster but reduced nutrient contents, including ascorbic acid and soluble sugar levels. Moreover, plant height, stem diameter, and internodal distance were similar between the transgenic plants. CONCLUSION Our results reveal the biological role of Thr-1050 in tomato and provide a molecular basis for establishing high-yield crops by precisely controlling BR signal strength via phosphorylation site modification.
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Affiliation(s)
- Shufen Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Jianwei Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Tong Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Chenxi Du
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Shuming Nie
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Yanyu Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Siqi Lv
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Shuhua Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Xiaofeng Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
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5
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Li G, Hu X, Hou L, Cao L, Wang Q, Wang D, Mu X, Zhang Y, Zhou X, Zhao Y, Xie CG. Molecular identification of BrHAB2a, one of the two AtHAB2-like proteins in Brassica rapa, is an important component of ABA signaling. Biochem Biophys Res Commun 2018; 503:495-500. [PMID: 29704501 DOI: 10.1016/j.bbrc.2018.04.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 04/23/2018] [Indexed: 10/28/2022]
Abstract
Abscisic acid (ABA) signaling is a vital physiological step that is used by many land plants to fight against environmental stress. As components of the linear ABA signaling pathway, clade A protein phosphatases type 2C (PP2C-As) are mainly inhibited by PYRABACTIN RESISTANCE1/PYR1-LIKE/REGULATORY COMPONENTS OF ABA RECEPTORS (PYLs)-type receptors upon their binding to ABA. Here, we show that the genome of Brassica rapa encodes 14 putative clade A PP2C-like proteins (BrPP2C-As). Two of these BrPP2C-As, Bra025964 and Bra016595, show high similarity to the HAB2 (Homology to ABI2) protein in Arabidopsis. RNAseq data reveal that nearly all BrPP2C-As, like BrHAB2a (Bra025964) and BrHAB2b (Bra016595), were highly expressed in at least one tissue. Overexpression of BrHAB2a conferred ABA insensitivity to Arabidopsis thaliana seedlings. Furthermore, the phosphatase activity of BrHAB2a could be inhibited by AtPYL1 or BrPYL1 in the presence of ABA. Overall, these results suggest that BrHAB2a is a functional PP2C-A like protein phosphotase and a key component of ABA signaling in Brassica rapa.
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Affiliation(s)
- Guoqing Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaochen Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lulu Hou
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lin Cao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qinhu Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Dandan Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaoqian Mu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yanfeng Zhang
- Hybrid Rapeseed Research Centre of Shaanxi Province, Yangling, Shaanxi, 712100, China
| | - Xiaona Zhou
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yang Zhao
- Shanghai Center for Plant Stress Biology, and CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Chang Gen Xie
- Northwest A&F University, No. 3 Taicheng Road, Yangling 712100 Shaanxi, China.
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6
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Ma T, Yoo MJ, Zhang T, Liu L, Koh J, Song WY, Harmon AC, Sha W, Chen S. Characterization of thiol-based redox modifications of Brassica napusSNF1-related protein kinase 2.6-2C. FEBS Open Bio 2018; 8:628-645. [PMID: 29632815 PMCID: PMC5881534 DOI: 10.1002/2211-5463.12401] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 12/09/2017] [Accepted: 01/29/2018] [Indexed: 01/04/2023] Open
Abstract
Sucrose nonfermenting 1‐related protein kinase 2.6 (SnRK2.6), also known as Open Stomata 1 (OST1) in Arabidopsis thaliana, plays a pivotal role in abscisic acid (ABA)‐mediated stomatal closure. Four SnRK2.6 paralogs were identified in the Brassica napus genome in our previous work. Here we studied one of the paralogs, BnSnRK2.6‐2C, which was transcriptionally induced by ABA in guard cells. Recombinant BnSnRK2.6‐2C exhibited autophosphorylation activity and its phosphorylation sites were mapped. The autophosphorylation activity was inhibited by S‐nitrosoglutathione (GSNO) and by oxidized glutathione (GSSG), and the inhibition was reversed by reductants. Using monobromobimane (mBBr) labeling, we demonstrated a dose‐dependent modification of BnSnRK2.6‐2C by GSNO. Furthermore, mass spectrometry analysis revealed previously uncharacterized thiol‐based modifications including glutathionylation and sulfonic acid formation. Of the six cysteine residues in BnSnRK2.6‐2C, C159 was found to have different types of thiol modifications, suggesting its high redox sensitivity and versatility. In addition, mBBr labeling on tyrosine residues was identified. Collectively, these data provide detailed biochemical characterization of redox‐induced modifications and changes of the BnSnRK2.6‐2C activity.
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Affiliation(s)
- Tianyi Ma
- College of Life Sciences Northeast Forestry University Harbin China.,Department of Biology Genetics Institute University of Florida Gainesville FL USA.,College of Life Sciences, Agriculture and Forestry Qiqihar University Heilongjiang China
| | - Mi-Jeong Yoo
- Department of Biology Genetics Institute University of Florida Gainesville FL USA
| | - Tong Zhang
- Department of Biology Genetics Institute University of Florida Gainesville FL USA
| | - Lihong Liu
- Department of Biology Genetics Institute University of Florida Gainesville FL USA
| | - Jin Koh
- Proteomics and Mass Spectrometry Interdisciplinary Center for Biotechnology Research University of Florida Gainesville FL USA
| | - Wen-Yuan Song
- Department of Plant Pathology University of Florida Gainesville FL USA.,Plant Molecular and Cellular Biology University of Florida Gainesville FL USA
| | - Alice C Harmon
- Department of Biology Genetics Institute University of Florida Gainesville FL USA.,Plant Molecular and Cellular Biology University of Florida Gainesville FL USA
| | - Wei Sha
- College of Life Sciences Northeast Forestry University Harbin China.,College of Life Sciences, Agriculture and Forestry Qiqihar University Heilongjiang China
| | - Sixue Chen
- Department of Biology Genetics Institute University of Florida Gainesville FL USA.,Proteomics and Mass Spectrometry Interdisciplinary Center for Biotechnology Research University of Florida Gainesville FL USA.,Plant Molecular and Cellular Biology University of Florida Gainesville FL USA
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Laloum T, Martín G, Duque P. Alternative Splicing Control of Abiotic Stress Responses. TRENDS IN PLANT SCIENCE 2018; 23:140-150. [PMID: 29074233 DOI: 10.1016/j.tplants.2017.09.019] [Citation(s) in RCA: 281] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 09/25/2017] [Accepted: 09/26/2017] [Indexed: 05/20/2023]
Abstract
Alternative splicing, which generates multiple transcripts from the same gene, is an important modulator of gene expression that can increase proteome diversity and regulate mRNA levels. In plants, this post-transcriptional mechanism is markedly induced in response to environmental stress, and recent studies have identified alternative splicing events that allow rapid adjustment of the abundance and function of key stress-response components. In agreement, plant mutants defective in splicing factors are severely impaired in their response to abiotic stress. Notably, mounting evidence indicates that alternative splicing regulates stress responses largely by targeting the abscisic acid (ABA) pathway. We review here current understanding of post-transcriptional control of plant stress tolerance via alternative splicing and discuss research challenges for the near future.
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Affiliation(s)
- Tom Laloum
- Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal
| | - Guiomar Martín
- Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal
| | - Paula Duque
- Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal.
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8
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Huang S, Nie S, Wang S, Liu J, Zhang Y, Wang X. SlBIR3 Negatively Regulates PAMP Responses and Cell Death in Tomato. Int J Mol Sci 2017; 18:ijms18091966. [PMID: 28902164 PMCID: PMC5618615 DOI: 10.3390/ijms18091966] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 09/10/2017] [Accepted: 09/11/2017] [Indexed: 02/07/2023] Open
Abstract
Bri1-associated kinase 1 (BAK1)-interacting receptor-like kinase (BIR) proteins have been shown to play important roles in regulating growth and development, pathogen associated molecular pattern (PAMP)-triggered immunity (PTI) responses, and cell death in the model plant, Arabidopsis thaliana. We identified four BIR family members in tomato (Solanum lycopersicum), including SlBIR3, an ortholog of AtBIR3 from A. thaliana. SlBIR3 is predicted to encode a membrane localized non-arginine-aspartate (non-RD) kinase that, based on protein sequence, does not have autophosphorylation activity but that can be phosphorylated in vivo. We established that SlBIR3 interacts with SlBAK1 and AtBAK1 using yeast two-hybrid assays and co-immunoprecipitation and maltose-binding protein pull down assays. We observed that SlBIR3 overexpression in tomato (cv. micro-tom) and A. thaliana has weak effect on growth and development through brassinosteroid (BR) signaling. SlBIR3 overexpression in A. thaliana suppressed flg22-induced defense responses, but did not affect infection with the bacterial pathogen Pseudomonas syringae (PstDC3000). This result was confirmed using virus-induced gene silencing (VIGS) in tomato in conjunction with PstDC3000 infection. Overexpression of SlBIR3 in tomato (cv. micro-tom) and A. thaliana resulted in enhanced susceptibility to the necrotrophic fungus Botrytis cinerea. In addition, co-silencing SlBIR3 with SlSERK3A or SlSERK3B using VIGS and the tobacco rattle virus (TRV)-RNA2 vector containing fragments of both the SlSERK3 and SlBIR3 genes induced spontaneous cell death, indicating a cooperation between the two proteins in this process. In conclusion, our study revealed that SlBIR3 is the ortholog of AtBIR3 and that it participates in BR, PTI, and cell death signaling pathways.
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Affiliation(s)
- Shuhua Huang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Shuming Nie
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Shufen Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Jianwei Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Yanfeng Zhang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, China.
- Hybrid Rapeseed Research Center of Shanxi Province, Yangling 712100, China.
| | - Xiaofeng Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, China.
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9
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Li Y, Wang D, Sun C, Hu X, Mu X, Hu J, Yang Y, Zhang Y, Xie CG, Zhou X. Molecular characterization of an AtPYL1-like protein, BrPYL1, as a putative ABA receptor in Brassica rapa. Biochem Biophys Res Commun 2017; 487:684-689. [PMID: 28450111 DOI: 10.1016/j.bbrc.2017.04.116] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 04/21/2017] [Indexed: 10/19/2022]
Abstract
Abscisic acid (ABA)-induced physiological changes are conserved in many land plants and underlie their responses to environmental stress and pathogens. The PYRABACTIN RESISTANCE1/PYR1-LIKE/REGULATORY COMPONENTS OF ABA RECEPTORS (PYLs)-type receptors perceive the ABA signal and initiate signal transduction. Here, we show that the genome of Brassica rapa encodes 24 putative AtPYL-like proteins. The AtPYL-like proteins in Brassica rapa (BrPYLs) can also be classified into 3 subclasses. We found that nearly all BrPYLs displayed high expression in at least one tissue. Overexpression of BrPYL1 conferred ABA hypersensitivity to Arabidopsis. Further, ABA activated the expression of an ABA-responsive reporter in Arabidopsis protoplasts expressing BrPYL1. Overall, these results suggest that BrPYL1 is a putative functional ABA receptor in Brassica rapa.
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Affiliation(s)
- Yanlin Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Dandan Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Congcong Sun
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiaochen Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiaoqian Mu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jingjiang Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yongqing Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100091, China
| | - Yanfeng Zhang
- Hybrid Rapeseed Research Centre of Shaanxi Province, Yangling 712100, Shaanxi, China
| | - Chang Gen Xie
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiaona Zhou
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China.
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Bai Y, Zhu W, Hu X, Sun C, Li Y, Wang D, Wang Q, Pei G, Zhang Y, Guo A, Zhao H, Lu H, Mu X, Hu J, Zhou X, Xie CG. Genome-Wide Analysis of the bZIP Gene Family Identifies Two ABI5-Like bZIP Transcription Factors, BrABI5a and BrABI5b, as Positive Modulators of ABA Signalling in Chinese Cabbage. PLoS One 2016; 11:e0158966. [PMID: 27414644 PMCID: PMC4944949 DOI: 10.1371/journal.pone.0158966] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 06/26/2016] [Indexed: 12/02/2022] Open
Abstract
bZIP (basic leucine zipper) transcription factors coordinate plant growth and development and control responses to environmental stimuli. The genome of Chinese cabbage (Brassica rapa) encodes 136 putative bZIP transcription factors. The bZIP transcription factors in Brassica rapa (BrbZIP) are classified into 10 subfamilies. Phylogenetic relationship analysis reveals that subfamily A consists of 23 BrbZIPs. Two BrbZIPs within subfamily A, Bra005287 and Bra017251, display high similarity to ABI5 (ABA Insensitive 5). Expression of subfamily A BrbZIPs, like BrABI5a (Bra005287/BrbZIP14) and BrABI5b (Bra017251/BrbZIP13), are significantly induced by the plant hormone ABA. Subcellular localization assay reveal that both BrABI5a and BrABI5b have a nuclear localization. BrABI5a and BrABI5b could directly stimulate ABA Responsive Element-driven HIS (a HIS3 reporter gene, which confers His prototrophy) or LUC (LUCIFERASE) expression in yeast and Arabidopsis protoplast. Deletion of the bZIP motif abolished BrABI5a and BrABI5b transcriptional activity. The ABA insensitive phenotype of Arabidopsis abi5-1 is completely suppressed in transgenic lines expressing BrABI5a or BrABI5b. Overall, these results suggest that ABI5 orthologs, BrABI5a and BrABI5b, have key roles in ABA signalling in Chinese cabbage.
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Affiliation(s)
- Yili Bai
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Wenbo Zhu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaochen Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Congcong Sun
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yanlin Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Dandan Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qinhu Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Guoliang Pei
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yanfeng Zhang
- Hybrid Rapeseed Research Centre of Shaanxi Province, Yangling, Shaanxi, 712100, China
| | - Aiguang Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Huixian Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Haibin Lu
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaoqian Mu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jingjiang Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaona Zhou
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Chang Gen Xie
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, 47907, United States of America
- * E-mail:
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11
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Zhu M, Monroe JG, Suhail Y, Villiers F, Mullen J, Pater D, Hauser F, Jeon BW, Bader JS, Kwak JM, Schroeder JI, McKay JK, Assmann SM. Molecular and systems approaches towards drought-tolerant canola crops. THE NEW PHYTOLOGIST 2016; 210:1169-1189. [PMID: 26879345 DOI: 10.1111/nph.13866] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 12/14/2015] [Indexed: 06/05/2023]
Abstract
1169 I. 1170 II. 1170 III. 1172 IV. 1176 V. 1181 VI. 1182 1183 References 1183 SUMMARY: Modern agriculture is facing multiple challenges including the necessity for a substantial increase in production to meet the needs of a burgeoning human population. Water shortage is a deleterious consequence of both population growth and climate change and is one of the most severe factors limiting global crop productivity. Brassica species, particularly canola varieties, are cultivated worldwide for edible oil, animal feed, and biodiesel, and suffer dramatic yield loss upon drought stress. The recent release of the Brassica napus genome supplies essential genetic information to facilitate identification of drought-related genes and provides new information for agricultural improvement in this species. Here we summarize current knowledge regarding drought responses of canola, including physiological and -omics effects of drought. We further discuss knowledge gained through translational biology based on discoveries in the closely related reference species Arabidopsis thaliana and through genetic strategies such as genome-wide association studies and analysis of natural variation. Knowledge of drought tolerance/resistance responses in canola together with research outcomes arising from new technologies and methodologies will inform novel strategies for improvement of drought tolerance and yield in this and other important crop species.
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Affiliation(s)
- Mengmeng Zhu
- Biology Department, Pennsylvania State University, University Park, PA, 16802, USA
| | - J Grey Monroe
- Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, CO, 80523, USA
| | - Yasir Suhail
- Department of Biomedical Engineering, The Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
| | - Florent Villiers
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, 20740, USA
| | - Jack Mullen
- Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, CO, 80523, USA
| | - Dianne Pater
- Division of Biological Sciences, Cell and Developmental Biology Section, Food and Fuel for the 21st Century Center, University of California San Diego, La Jolla, CA, 92093-016, USA
| | - Felix Hauser
- Division of Biological Sciences, Cell and Developmental Biology Section, Food and Fuel for the 21st Century Center, University of California San Diego, La Jolla, CA, 92093-016, USA
| | - Byeong Wook Jeon
- Biology Department, Pennsylvania State University, University Park, PA, 16802, USA
| | - Joel S Bader
- Department of Biomedical Engineering, The Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
- School of Medicine, The Johns Hopkins University, Baltimore, MD, 21205, USA
| | - June M Kwak
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, 20740, USA
- Center for Plant Aging Research, Institute for Basic Science, Department of New Biology, DGIST, Daegu, 42988, Korea
| | - Julian I Schroeder
- Division of Biological Sciences, Cell and Developmental Biology Section, Food and Fuel for the 21st Century Center, University of California San Diego, La Jolla, CA, 92093-016, USA
| | - John K McKay
- Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, CO, 80523, USA
| | - Sarah M Assmann
- Biology Department, Pennsylvania State University, University Park, PA, 16802, USA
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12
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Yoo MJ, Ma T, Zhu N, Liu L, Harmon AC, Wang Q, Chen S. Genome-wide identification and homeolog-specific expression analysis of the SnRK2 genes in Brassica napus guard cells. PLANT MOLECULAR BIOLOGY 2016; 91:211-27. [PMID: 26898295 DOI: 10.1007/s11103-016-0456-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 02/15/2016] [Indexed: 05/22/2023]
Abstract
Sucrose non-fermenting-1-related protein kinase 2 (SnRK2) proteins constitute a small plant-specific serine/threonine kinase family involved in abscisic acid (ABA) signaling and plant responses to biotic and abiotic stresses. Although SnRK2s have been well-studied in Arabidopsis thaliana, little is known about SnRK2s in Brassica napus. Here we identified 30 putative sequences encoding 10 SnRK2 proteins in the B. napus genome and the expression profiles of a subset of 14 SnRK2 genes in guard cells of B. napus. In agreement with its polyploid origin, B. napus maintains both homeologs from its diploid parents. The results of quantitative real-time PCR (qRT-PCR) and reanalysis of RNA-Seq data showed that certain BnSnRK2 genes were commonly expressed in leaf tissues in different varieties of B. napus. In particular, qRT-PCR results showed that 12 of the 14 BnSnRK2s responded to drought stress in leaves and in ABA-treated guard cells. Among them, BnSnRK2.4 and BnSnRK2.6 were of interest because of their robust responsiveness to ABA treatment and drought stress. Notably, BnSnRK2 genes exhibited up-regulation of different homeologs, particularly in response to abiotic stress. The homeolog expression bias in BnSnRK2 genes suggests that parental origin of genes might be responsible for efficient regulation of stress responses in polyploids. This work has laid a foundation for future functional characterization of the different BnSnKR2 homeologs in B. napus and its parents, especially their functions in guard cell signaling and stress responses.
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Affiliation(s)
- Mi-Jeong Yoo
- Department of Biology, Genetics Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Tianyi Ma
- Department of Biology, Genetics Institute, University of Florida, Gainesville, FL, 32610, USA
- College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Ning Zhu
- Department of Biology, Genetics Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Lihong Liu
- Department of Biology, Genetics Institute, University of Florida, Gainesville, FL, 32610, USA
- Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Alice C Harmon
- Department of Biology, Genetics Institute, University of Florida, Gainesville, FL, 32610, USA
- Plant Molecular and Cellular Biology, University of Florida, Gainesville, FL, 32611, USA
| | - Qiaomei Wang
- Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Sixue Chen
- Department of Biology, Genetics Institute, University of Florida, Gainesville, FL, 32610, USA.
- Plant Molecular and Cellular Biology, University of Florida, Gainesville, FL, 32611, USA.
- Proteomics and Mass Spectrometry, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL, 32610, USA.
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Laxalt AM, García-Mata C, Lamattina L. The Dual Role of Nitric Oxide in Guard Cells: Promoting and Attenuating the ABA and Phospholipid-Derived Signals Leading to the Stomatal Closure. FRONTIERS IN PLANT SCIENCE 2016; 7:476. [PMID: 27148304 PMCID: PMC4830826 DOI: 10.3389/fpls.2016.00476] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 03/24/2016] [Indexed: 05/21/2023]
Affiliation(s)
| | | | - Lorenzo Lamattina
- Molecular and Integrative Physiology, Instituto de Investigaciones Biológicas, CONICET-Universidad Nacional de Mar del PlataMar del Plata, Argentina
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14
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Dale R, Ohmuro-Matsuyama Y, Ueda H, Kato N. Mathematical Model of the Firefly Luciferase Complementation Assay Reveals a Non-Linear Relationship between the Detected Luminescence and the Affinity of the Protein Pair Being Analyzed. PLoS One 2016; 11:e0148256. [PMID: 26886551 PMCID: PMC4757408 DOI: 10.1371/journal.pone.0148256] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/15/2016] [Indexed: 01/11/2023] Open
Abstract
The firefly luciferase complementation assay is widely used as a bioluminescent reporter technology to detect protein-protein interactions in vitro, in cellulo, and in vivo. Upon the interaction of a protein pair, complemented firefly luciferase emits light through the adenylation and oxidation of its substrate, luciferin. Although it has been suggested that kinetics of light production in the firefly luciferase complementation assay is different from that in full length luciferase, the mechanism behind this is still not understood. To quantitatively understand the different kinetics and how changes in affinity of a protein pair affect the light emission in the assay, a mathematical model of the in vitro firefly luciferase complementation assay was constructed. Analysis of the model finds that the change in kinetics is caused by rapid dissociation of the protein pair, low adenylation rate of luciferin, and increased affinity of adenylated luciferin to the enzyme. The model suggests that the affinity of the protein pair has an exponential relationship with the light detected in the assay. This relationship causes the change of affinity in a protein pair to be underestimated. This study underlines the importance of understanding the molecular mechanism of the firefly luciferase complementation assay in order to analyze protein pair affinities quantitatively.
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Affiliation(s)
- Renee Dale
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
| | - Yuki Ohmuro-Matsuyama
- Chemical Resources Laboratory, Tokyo Institute of Technology, Nagatsuta-cho, Yokohama, Kanagawa, Japan
| | - Hiroshi Ueda
- Chemical Resources Laboratory, Tokyo Institute of Technology, Nagatsuta-cho, Yokohama, Kanagawa, Japan
| | - Naohiro Kato
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
- * E-mail:
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15
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Skubacz A, Daszkowska-Golec A, Szarejko I. The Role and Regulation of ABI5 (ABA-Insensitive 5) in Plant Development, Abiotic Stress Responses and Phytohormone Crosstalk. FRONTIERS IN PLANT SCIENCE 2016; 7:1884. [PMID: 28018412 PMCID: PMC5159420 DOI: 10.3389/fpls.2016.01884] [Citation(s) in RCA: 259] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 11/29/2016] [Indexed: 05/18/2023]
Abstract
ABA Insensitive 5 (ABI5) is a basic leucine zipper transcription factor that plays a key role in the regulation of seed germination and early seedling growth in the presence of ABA and abiotic stresses. ABI5 functions in the core ABA signaling, which is composed of PYR/PYL/RCAR receptors, PP2C phosphatases and SnRK2 kinases, through the regulation of the expression of genes that contain the ABSCISIC ACID RESPONSE ELEMENT (ABRE) motif within their promoter region. The regulated targets include stress adaptation genes, e.g., LEA proteins. However, the expression and activation of ABI5 is not only dependent on the core ABA signaling. Many transcription factors such as ABI3, ABI4, MYB7 and WRKYs play either a positive or a negative role in the regulation of ABI5 expression. Additionally, the stability and activity of ABI5 are also regulated by other proteins through post-translational modifications such as phosphorylation, ubiquitination, sumoylation and S-nitrosylation. Moreover, ABI5 also acts as an ABA and other phytohormone signaling integrator. Components of auxin, cytokinin, gibberellic acid, jasmonate and brassinosteroid signaling and metabolism pathways were shown to take part in ABI5 regulation and/or to be regulated by ABI5. Monocot orthologs of AtABI5 have been identified. Although their roles in the molecular and physiological adaptations during abiotic stress have been elucidated, knowledge about their detailed action still remains elusive. Here, we describe the recent advances in understanding the action of ABI5 in early developmental processes and the adaptation of plants to unfavorable environmental conditions. We also focus on ABI5 relation to other phytohormones in the abiotic stress response of plants.
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16
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Zhou X, Hao H, Zhang Y, Bai Y, Zhu W, Qin Y, Yuan F, Zhao F, Wang M, Hu J, Xu H, Guo A, Zhao H, Zhao Y, Cao C, Yang Y, Schumaker KS, Guo Y, Xie CG. SOS2-LIKE PROTEIN KINASE5, an SNF1-RELATED PROTEIN KINASE3-Type Protein Kinase, Is Important for Abscisic Acid Responses in Arabidopsis through Phosphorylation of ABSCISIC ACID-INSENSITIVE5. PLANT PHYSIOLOGY 2015; 168:659-76. [PMID: 25858916 PMCID: PMC4453773 DOI: 10.1104/pp.114.255455] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 04/04/2015] [Indexed: 05/18/2023]
Abstract
Abscisic acid (ABA) plays an essential role in seed germination. In this study, we demonstrate that one SNF1-related protein kinase3-type protein kinase, SOS2-like protein kinase5 (PKS5), is involved in ABA signal transduction via the phosphorylation of an interacting protein, abscisic acid-insensitive5 (ABI5). We found that pks5-3 and pks5-4, two previously identified PKS5 superactive kinase mutants with point mutations in the PKS5 FISL/NAF (a conserved peptide that is necessary for interaction with SOS3 or SOS3-like calcium binding proteins) motif and the kinase domain, respectively, are hypersensitive to ABA during seed germination. PKS5 was found to interact with ABI5 in yeast (Saccharomyces cerevisiae), and this interaction was further confirmed in planta using bimolecular fluorescence complementation. Genetic studies revealed that ABI5 is epistatic to PKS5. PKS5 phosphorylates a serine (Ser) residue at position 42 in ABI5 and regulates ABA-responsive gene expression. This phosphorylation was induced by ABA in vivo and transactivated ABI5. Expression of ABI5, in which Ser-42 was mutated to alanine, could not fully rescue the ABA-insensitive phenotypes of the abi5-8 and pks5-4abi5-8 mutants. In contrast, mutating Ser-42 to aspartate rescued the ABA insensitivity of these mutants. These data demonstrate that PKS5-mediated phosphorylation of ABI5 at Ser-42 is critical for the ABA regulation of seed germination and gene expression in Arabidopsis (Arabidopsis thaliana).
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Affiliation(s)
- Xiaona Zhou
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Hongmei Hao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Yuguo Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Yili Bai
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Wenbo Zhu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Yunxia Qin
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Feifei Yuan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Feiyi Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Mengyao Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Jingjiang Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Hong Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Aiguang Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Huixian Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Yang Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Cuiling Cao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Yongqing Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Karen S Schumaker
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Yan Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
| | - Chang Gen Xie
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China (X.Z., H.H., Y.B., W.Z., F.Y., M.W., J.H., H.X., A.G., H.Z., C.C., C.G.X.);State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China (Yu.Z., Y.Q., F.Z., Ya.Z., Y.Y., Y.G.); andSchool of Plant Sciences, University of Arizona, Tucson, Arizona 85721 (K.S.S.)
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Guerra D, Crosatti C, Khoshro HH, Mastrangelo AM, Mica E, Mazzucotelli E. Post-transcriptional and post-translational regulations of drought and heat response in plants: a spider's web of mechanisms. FRONTIERS IN PLANT SCIENCE 2015; 6:57. [PMID: 25717333 PMCID: PMC4324062 DOI: 10.3389/fpls.2015.00057] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 01/22/2015] [Indexed: 05/14/2023]
Abstract
Drought and heat tolerance are complex quantitative traits. Moreover, the adaptive significance of some stress-related traits is more related to plant survival than to agronomic performance. A web of regulatory mechanisms fine-tunes the expression of stress-related traits and integrates both environmental and developmental signals. Both post-transcriptional and post-translational modifications contribute substantially to this network with a pivotal regulatory function of the transcriptional changes related to cellular and plant stress response. Alternative splicing and RNA-mediated silencing control the amount of specific transcripts, while ubiquitin and SUMO modify activity, sub-cellular localization and half-life of proteins. Interactions across these modification mechanisms ensure temporally and spatially appropriate patterns of downstream-gene expression. For key molecular components of these regulatory mechanisms, natural genetic diversity exists among genotypes with different behavior in terms of stress tolerance, with effects upon the expression of adaptive morphological and/or physiological target traits.
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Affiliation(s)
- Davide Guerra
- Genomics Research Centre, Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Fiorenzuola d’Arda, Piacenza, Italy
| | - Cristina Crosatti
- Genomics Research Centre, Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Fiorenzuola d’Arda, Piacenza, Italy
| | - Hamid H. Khoshro
- Department of Agronomy and Plant Breeding, Ilam University, Ilam, Iran
| | - Anna M. Mastrangelo
- Cereal Research Centre, Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Foggia, Italy
| | - Erica Mica
- Genomics Research Centre, Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Fiorenzuola d’Arda, Piacenza, Italy
| | - Elisabetta Mazzucotelli
- Genomics Research Centre, Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Fiorenzuola d’Arda, Piacenza, Italy
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Maierhofer T, Diekmann M, Offenborn JN, Lind C, Bauer H, Hashimoto K, S. Al-Rasheid KA, Luan S, Kudla J, Geiger D, Hedrich R. Site- and kinase-specific phosphorylation-mediated activation of SLAC1, a guard cell anion channel stimulated by abscisic acid. Sci Signal 2014; 7:ra86. [DOI: 10.1126/scisignal.2005703] [Citation(s) in RCA: 144] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Bu Y, Zhao M, Sun B, Zhang X, Takano T, Liu S. An efficient method for stable protein targeting in grasses (Poaceae): a case study in Puccinellia tenuiflora. BMC Biotechnol 2014; 14:52. [PMID: 24898217 PMCID: PMC4064272 DOI: 10.1186/1472-6750-14-52] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Accepted: 05/26/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND An efficient transformation method is lacking for most non-model plant species to test gene function. Therefore, subcellular localization of proteins of interest from non-model plants is mainly carried out through transient transformation in homologous cells or in heterologous cells from model species such as Arabidopsis. Although analysis of expression patterns in model organisms like yeast and Arabidopsis can provide important clues about protein localization, these heterologous systems may not always faithfully reflect the native subcellular distribution in other species. On the other hand, transient expression in protoplasts from species of interest has limited ability for detailed sub-cellular localization analysis (e.g., those involving subcellular fractionation or sectioning and immunodetection), as it results in heterogeneous populations comprised of both transformed and untransformed cells. RESULTS We have developed a simple and reliable method for stable transformation of plant cell suspensions that are suitable for protein subcellular localization analyses in the non-model monocotyledonous plant Puccinellia tenuiflora. Optimization of protocols for obtaining suspension-cultured cells followed by Agrobacterium-mediated genetic transformation allowed us to establish stably transformed cell lines, which could be maintained indefinitely in axenic culture supplied with the proper antibiotic. As a case study, protoplasts of transgenic cell lines stably transformed with an ammonium transporter-green fluorescent protein (PutAMT1;1-GFP) fusion were successfully used for subcellular localization analyses in P. tenuiflora. CONCLUSIONS We present a reliable method for the generation of stably transformed P. tenuiflora cell lines, which, being available in virtually unlimited amounts, can be conveniently used for any type of protein subcellular localization analysis required. Given its simplicity, the method can be used as reference for other non-model plant species lacking efficient regeneration protocols.
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Affiliation(s)
| | | | | | | | | | - Shenkui Liu
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration in Oil Field (SAVER), Ministry of Education, Alkali Soil Natural Environmental Science Center (ASNESC), Northeast Forestry University, Hexing Road No, 26, Xiangfang District, Harbin City, Heilongjiang Province 150040, China.
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Yuan F, Wang M, Hao H, Zhang Y, Zhao H, Guo A, Xu H, Zhou X, Xie CG. Negative regulation of abscisic acid signaling by the Brassica oleracea ABI1 ortholog. Biochem Biophys Res Commun 2013; 442:202-8. [DOI: 10.1016/j.bbrc.2013.11.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Accepted: 11/07/2013] [Indexed: 12/15/2022]
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