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Wang Z, Zhong S, Zhang S, Zhang B, Zheng Y, Sun Y, Zhang Q, Liu X. A novel and ubiquitous miRNA-involved regulatory module ensures precise phosphorylation of RNA polymerase II and proper transcription. PLoS Pathog 2024; 20:e1012138. [PMID: 38640110 PMCID: PMC11062530 DOI: 10.1371/journal.ppat.1012138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 05/01/2024] [Accepted: 03/20/2024] [Indexed: 04/21/2024] Open
Abstract
Proper transcription orchestrated by RNA polymerase II (RNPII) is crucial for cellular development, which is rely on the phosphorylation state of RNPII's carboxyl-terminal domain (CTD). Sporangia, developed from mycelia, are essential for the destructive oomycetes Phytophthora, remarkable transcriptional changes are observed during the morphological transition. However, how these changes are rapidly triggered and their relationship with the versatile RNPII-CTD phosphorylation remain enigmatic. Herein, we found that Phytophthora capsici undergone an elevation of Ser5-phosphorylation in its uncanonical heptapeptide repeats of RNPII-CTD during sporangia development, which subsequently changed the chromosomal occupation of RNPII and primarily activated transcription of certain genes. A cyclin-dependent kinase, PcCDK7, was highly induced and phosphorylated RNPII-CTD during this morphological transition. Mechanistically, a novel DCL1-dependent microRNA, pcamiR1, was found to be a feedback modulator for the precise phosphorylation of RNPII-CTD by complexing with PcAGO1 and regulating the accumulation of PcCDK7. Moreover, this study revealed that the pcamiR1-CDK7-RNPII regulatory module is evolutionarily conserved and the impairment of the balance between pcamiR1 and PcCDK7 could efficiently reduce growth and virulence of P. capsici. Collectively, this study uncovers a novel and evolutionary conserved mechanism of transcription regulation which could facilitate correct development and identifies pcamiR1 as a promising target for disease control.
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Affiliation(s)
- Zhiwen Wang
- China Agricultural University, Beijing, China
- Sanya Institute of China Agricultural University, Sanya, China
| | - Shan Zhong
- China Agricultural University, Beijing, China
| | | | - Borui Zhang
- China Agricultural University, Beijing, China
| | - Yang Zheng
- China Agricultural University, Beijing, China
| | - Ye Sun
- China Agricultural University, Beijing, China
| | | | - Xili Liu
- China Agricultural University, Beijing, China
- State Key Laboratory or Crop Stress Resistance and High-Efficiency Production, Northwest A&F University, Yangling, China
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2
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Kong W, Huang H, Du W, Jiang Z, Luo Y, Yi D, Yang G, Pang Y. Overexpression of MsNIP2 improves salinity tolerance in Medicago sativa. JOURNAL OF PLANT PHYSIOLOGY 2024; 295:154207. [PMID: 38430574 DOI: 10.1016/j.jplph.2024.154207] [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: 12/16/2023] [Revised: 02/24/2024] [Accepted: 02/24/2024] [Indexed: 03/04/2024]
Abstract
Alfalfa (Medicago sativa) is one of the most widely cultivated forage crops in the world. However, alfalfa yield and quality are adversely affected by salinity stress. Nodulin 26-like intrinsic proteins (NIPs) play essential roles in water and small molecules transport and response to salt stress. Here, we isolated a salt stress responsive MsNIP2 gene and demonstrated its functions by overexpression in alfalfa. The open reading frame of MsNIP2 is 816 bp in length, and it encodes 272 amino acids. It has six transmembrane domains and two NPA motifs. MsNIP2 showed high identity to other known NIP proteins, and its tertiary model was similar to the crystal structure of OsNIP2-1 (7cjs) tetramer. Subcellular localization analysis showed that MsNIP2 protein fused with green fluorescent protein (GFP) was localized to the plasma membrane. Transgenic alfalfa lines overexpressing MsNIP2 showed significantly higher height and branch number compared with the non-transgenic control. The POD and CAT activity of the transgenic alfalfa lines was significantly increased and their MDA content was notably reduced compared with the control group under the treatment of NaCl. The transgenic lines showed higher capability in scavenging oxygen radicals with lighter NBT staining than the control under salt stress. The transgenic lines showed relative lower water loss rate and electrolyte leakage, but relatively higher Na+ content than the control line under salt stress. The relative expression levels of abiotic-stress-related genes (MsHSP23, MsCOR47, MsATPase, and MsRD2) in three transgenic lines were compared with the control, among them, only the expression of MsCOR47 was up-regulated. Consequently, this study offers a novel perspective for exploring the function of MsNIP2 in improving salt tolerance of alfalfa.
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Affiliation(s)
- Weiye Kong
- Grassland Agri-Husbandry Research Center, College of Grassland Science, Qingdao Agricultural University, Qingdao, China; Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Haijun Huang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Wenxuan Du
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Zhihu Jiang
- West Arid Region Grassland Resource and Ecology Key Laboratory, College of Grassland and Environmental Sciences, Xinjiang Agricultural University, Urumqi, 830052, China
| | - Yijing Luo
- Grassland Agri-Husbandry Research Center, College of Grassland Science, Qingdao Agricultural University, Qingdao, China
| | - Dengxia Yi
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Guofeng Yang
- Grassland Agri-Husbandry Research Center, College of Grassland Science, Qingdao Agricultural University, Qingdao, China.
| | - Yongzhen Pang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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3
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Yue C, Cao H, Zhang S, Shen G, Wu Z, Yuan L, Luo L, Zeng L. Multilayer omics landscape analyses reveal the regulatory responses of tea plants to drought stress. Int J Biol Macromol 2023; 253:126582. [PMID: 37652332 DOI: 10.1016/j.ijbiomac.2023.126582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/12/2023] [Accepted: 08/27/2023] [Indexed: 09/02/2023]
Abstract
Adverse environments, especially drought conditions, deeply influence plant development and growth in all aspects, and the yield and quality of tea plants are largely dependent on favorable growth conditions. Although tea plant responses to drought stress (DS) have been studied, a comprehensive multilayer epigenetic, transcriptomic, and proteomic investigation of how tea responds to DS is lacking. In this study, we generated DNA methylome, transcriptome, proteome, and phosphoproteome data to explore multiple regulatory landscapes in the tea plant response to DS. An integrated multiomics analysis revealed the response of tea plants to DS at multiple regulatory levels. Furthermore, a set of DS-responsive genes involved in photosynthesis, transmembrane transportation, phytohormone metabolism and signaling, secondary metabolite pathways, transcription factors, protein kinases, posttranslational and epigenetic modification, and other key stress-responsive genes were identified for further functional investigation. These results reveal the multilayer regulatory landscape of the tea plant response to DS and provide insight into the mechanisms of these DS responses.
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Affiliation(s)
- Chuan Yue
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China.
| | - Hongli Cao
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Shaorong Zhang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Gaojian Shen
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Zhijun Wu
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Lianyu Yuan
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Liyong Luo
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Liang Zeng
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China.
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4
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Li H, Song K, Zhang X, Wang D, Dong S, Liu Y, Yang L. Application of Multi-Perspectives in Tea Breeding and the Main Directions. Int J Mol Sci 2023; 24:12643. [PMID: 37628823 PMCID: PMC10454712 DOI: 10.3390/ijms241612643] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/29/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Tea plants are an economically important crop and conducting research on tea breeding contributes to enhancing the yield and quality of tea leaves as well as breeding traits that satisfy the requirements of the public. This study reviews the current status of tea plants germplasm resources and their utilization, which has provided genetic material for the application of multi-omics, including genomics and transcriptomics in breeding. Various molecular markers for breeding were designed based on multi-omics, and available approaches in the direction of high yield, quality and resistance in tea plants breeding are proposed. Additionally, future breeding of tea plants based on single-cellomics, pangenomics, plant-microbe interactions and epigenetics are proposed and provided as references. This study aims to provide inspiration and guidance for advancing the development of genetic breeding in tea plants, as well as providing implications for breeding research in other crops.
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Affiliation(s)
| | | | | | | | | | | | - Long Yang
- College of Plant Protection and Agricultural Big-Data Research Center, Shandong Agricultural University, Tai’an 271018, China
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5
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Luo Y, Ma L, Du W, Yan S, Wang Z, Pang Y. Identification and Characterization of Salt- and Drought-Responsive AQP Family Genes in Medicagosativa L. Int J Mol Sci 2022; 23:ijms23063342. [PMID: 35328763 PMCID: PMC8950044 DOI: 10.3390/ijms23063342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 02/05/2023] Open
Abstract
Aquaporins (AQP) are distributed ubiquitously in plants, and they play important roles in multiple aspects of plant growth and development, as well as in plant resistance to various environmental stresses. In this study, 43 MsAQP genes were identified in the forage crop Medicago sativa. All the MsAQP proteins were clustered into four subfamilies based on sequence similarity and phylogenetic relationship, including 17 TIPs, 14 NIPs, 9 PIPs and 3 SIPs. Analyses of gene structure and conserved domains indicated that the majority of the deduced MsAQP proteins contained the signature transmembrane domains and the NPA motifs. Analyses on cis-acting elements in the promoter region of MsAQP genes revealed the presence of multiple and diverse stress-responsive and hormone-responsive cis-acting elements. In addition, by analyzing the available and comprehensive gene expression data of M. truncatula, we screened ten representative MtAQP genes that were responsive to NaCl or drought stress. By analyzing the sequence similarity and phylogenetic relationship, we finally identified the corresponding ten salt- or drought-responsive AQP genes in M. sativa, including three MsTIPs, three MsPIPs and four MsNIPs. The qPCRs showed that the relative expression levels of these ten selected MsAQP genes responded differently to NaCl or drought treatment in M. sativa. Gene expression patterns showed that most MsAQP genes were preferentially expressed in roots or in leaves, which may reflect their tissue-specific functions associated with development. Our results lay an important foundation for the future characterization of the functions of MsAQP genes, and provide candidate genes for stress resistance improvement through genetic breeding in M. sativa.
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Affiliation(s)
- Yijing Luo
- College of Grassland Science, Qingdao Agricultural University, Qingdao 266109, China; (Y.L.); (S.Y.)
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (L.M.); (W.D.)
| | - Lin Ma
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (L.M.); (W.D.)
| | - Wenxuan Du
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (L.M.); (W.D.)
| | - Su Yan
- College of Grassland Science, Qingdao Agricultural University, Qingdao 266109, China; (Y.L.); (S.Y.)
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (L.M.); (W.D.)
| | - Zengyu Wang
- College of Grassland Science, Qingdao Agricultural University, Qingdao 266109, China; (Y.L.); (S.Y.)
- Correspondence: (Z.W.); (Y.P.)
| | - Yongzhen Pang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (L.M.); (W.D.)
- Correspondence: (Z.W.); (Y.P.)
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6
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Venisse JS, Õunapuu-Pikas E, Dupont M, Gousset-Dupont A, Saadaoui M, Faize M, Chen S, Chen S, Petel G, Fumanal B, Roeckel-Drevet P, Sellin A, Label P. Genome-Wide Identification, Structure Characterization, and Expression Pattern Profiling of the Aquaporin Gene Family in Betula pendula. Int J Mol Sci 2021; 22:7269. [PMID: 34298887 PMCID: PMC8304918 DOI: 10.3390/ijms22147269] [Citation(s) in RCA: 2] [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: 05/19/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 01/12/2023] Open
Abstract
Aquaporin water channels (AQPs) constitute a large family of transmembrane proteins present throughout all kingdoms of life. They play key roles in the flux of water and many solutes across the membranes. The AQP diversity, protein features, and biological functions of silver birch are still unknown. A genome analysis of Betula pendula identified 33 putative genes encoding full-length AQP sequences (BpeAQPs). They are grouped into five subfamilies, representing ten plasma membrane intrinsic proteins (PIPs), eight tonoplast intrinsic proteins (TIPs), eight NOD26-like intrinsic proteins (NIPs), four X intrinsic proteins (XIPs), and three small basic intrinsic proteins (SIPs). The BpeAQP gene structure is conserved within each subfamily, with exon numbers ranging from one to five. The predictions of the aromatic/arginine selectivity filter (ar/R), Froger's positions, specificity-determining positions, and 2D and 3D biochemical properties indicate noticeable transport specificities to various non-aqueous substrates between members and/or subfamilies. Nevertheless, overall, the BpePIPs display mostly hydrophilic ar/R selective filter and lining-pore residues, whereas the BpeTIP, BpeNIP, BpeSIP, and BpeXIP subfamilies mostly contain hydrophobic permeation signatures. Transcriptional expression analyses indicate that 23 BpeAQP genes are transcribed, including five organ-related expressions. Surprisingly, no significant transcriptional expression is monitored in leaves in response to cold stress (6 °C), although interesting trends can be distinguished and will be discussed, notably in relation to the plasticity of this pioneer species, B. pendula. The current study presents the first detailed genome-wide analysis of the AQP gene family in a Betulaceae species, and our results lay a foundation for a better understanding of the specific functions of the BpeAQP genes in the responses of the silver birch trees to cold stress.
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Affiliation(s)
- Jean-Stéphane Venisse
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Eele Õunapuu-Pikas
- Institute of Ecology and Earth Sciences, University of Tartu, 51005 Tartu, Estonia; (E.Õ.-P.); (A.S.)
| | - Maxime Dupont
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Aurélie Gousset-Dupont
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Mouadh Saadaoui
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
- National Institute of Agronomy of Tunisia (INAT), Crop Improvement Laboratory, INRAT, Tunis CP 1004, Tunisia
| | - Mohamed Faize
- Laboratory of Plant Biotechnology, Ecology and Ecosystem Valorization, Faculty of Sciences, University Chouaib Doukkali, El Jadida 24000, Morocco;
| | - Song Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; (S.C.); (S.C.)
| | - Su Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; (S.C.); (S.C.)
| | - Gilles Petel
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Boris Fumanal
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Patricia Roeckel-Drevet
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Arne Sellin
- Institute of Ecology and Earth Sciences, University of Tartu, 51005 Tartu, Estonia; (E.Õ.-P.); (A.S.)
| | - Philippe Label
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
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7
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Flooding or drought which one is more offensive on pepper physiology and growth? Mol Biol Rep 2021; 48:4233-4245. [PMID: 34120292 DOI: 10.1007/s11033-021-06437-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 05/26/2021] [Indexed: 10/21/2022]
Abstract
Both extreme usage of water in agriculture i.e., drought and flooding affect physiological and growth aspects of the plant as well as gene expression undertaken in water absorption. These affect depend on the stress duration i.e., shock or gradual stress exposer. The factorial experiment based on CRD with 10 replicates was conducted to investigate the physiological and water relation as well as aquaporin expression in (Capsicum annuum L.). Drought stress was applied gradually from - 2, - 3, - 4 to - 5 MPa during 8 days but in shock stress - 5 MPa applied at one time. The gradual flooding stress adjusted with changing the aeration duration from 15 to 0 min gradually every 2 days and for the shock- flooding, peppers keep in a nutrient solution without aeration in a sealed container. Results showed that both extreme water stress had a deleterious effect on the growth and physiological parameter of pepper for a longer duration. Antioxidant, proline, fluorescence chlorophyll stimulate in the gradual period except for ABA content, which is higher in shock stress. PIP1expression showed a reverse effect in leaf and root at flooding i.e., PIP1expression raised in root while it was reduced in leaf at shock-flooding. The highest PIP1expression was observed in gradual-drought of root and gradual duration of drought and flooding stress in leaf. In the physiological aspect of plant response to stress in pepper, results showed an enhanced in proline and phenol content to help osmotic adjustment and keep water status in moderate condition. Conclusively, shocked stress first, motivated these defense systems, and then in the next step, the other adaptive mechanism like gene expression activated to help pepper face stress. On the other hand, shock stress showed down-regulation, but when the stress lasted for a longer time results in up-regulation.
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Đurić MJ, Subotić AR, Prokić LT, Trifunović-Momčilov MM, Cingel AD, Dragićević MB, Simonović AD, Milošević SM. Molecular Characterization and Expression of Four Aquaporin Genes in Impatiens walleriana During Drought Stress and Recovery. PLANTS (BASEL, SWITZERLAND) 2021; 10:154. [PMID: 33466920 PMCID: PMC7829780 DOI: 10.3390/plants10010154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/23/2020] [Accepted: 01/06/2021] [Indexed: 12/19/2022]
Abstract
Aquaporins comprise a large group of transmembrane proteins responsible for water transport, which is crucial for plant survival under stress conditions. Despite the vital role of aquaporins, nothing is known about this protein family in Impatiens walleriana, a commercially important horticultural plant, which is sensitive to drought stress. In the present study, attention is given to the molecular characterization of aquaporins in I. walleriana and their expression during drought stress and recovery. We identified four I. walleriana aquaporins: IwPIP1;4, IwPIP2;2, IwPIP2;7 and IwTIP4;1. All of them had conserved NPA motifs (Asparagine-Proline-Alanine), transmembrane helices (TMh), pore characteristics, stereochemical properties and tetrameric structure of holoprotein. Drought stress and recovery treatment affected the aquaporins expression in I. walleriana leaves, which was up- or downregulated depending on stress intensity. Expression of IwPIP2;7 was the most affected of all analyzed I. walleriana aquaporins. At 15% and 5% soil moisture and recovery from 15% and 5% soil moisture, IwPIP2;7 expression significantly decreased and increased, respectively. Aquaporins IwPIP1;4 and IwTIP4;1 had lower expression in comparison to IwPIP2;7, with moderate expression changes in response to drought and recovery, while IwPIP2;2 expression was of significance only in recovered plants. Insight into the molecular structure of I. walleriana aquaporins expanded knowledge about plant aquaporins, while its expression during drought and recovery contributed to I. walleriana drought tolerance mechanisms and re-acclimation.
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Affiliation(s)
- Marija J. Đurić
- Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, Department of Plant Physiology, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia; (A.R.S.); (M.M.T.-M.); (A.D.C.); (M.B.D.); (A.D.S.); (S.M.M.)
| | - Angelina R. Subotić
- Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, Department of Plant Physiology, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia; (A.R.S.); (M.M.T.-M.); (A.D.C.); (M.B.D.); (A.D.S.); (S.M.M.)
| | - Ljiljana T. Prokić
- Department for Agrochemistry and Plant Physiology, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia;
| | - Milana M. Trifunović-Momčilov
- Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, Department of Plant Physiology, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia; (A.R.S.); (M.M.T.-M.); (A.D.C.); (M.B.D.); (A.D.S.); (S.M.M.)
| | - Aleksandar D. Cingel
- Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, Department of Plant Physiology, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia; (A.R.S.); (M.M.T.-M.); (A.D.C.); (M.B.D.); (A.D.S.); (S.M.M.)
| | - Milan B. Dragićević
- Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, Department of Plant Physiology, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia; (A.R.S.); (M.M.T.-M.); (A.D.C.); (M.B.D.); (A.D.S.); (S.M.M.)
| | - Ana D. Simonović
- Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, Department of Plant Physiology, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia; (A.R.S.); (M.M.T.-M.); (A.D.C.); (M.B.D.); (A.D.S.); (S.M.M.)
| | - Snežana M. Milošević
- Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, Department of Plant Physiology, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia; (A.R.S.); (M.M.T.-M.); (A.D.C.); (M.B.D.); (A.D.S.); (S.M.M.)
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9
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Versatile Roles of Aquaporins in Plant Growth and Development. Int J Mol Sci 2020; 21:ijms21249485. [PMID: 33322217 PMCID: PMC7763978 DOI: 10.3390/ijms21249485] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 12/14/2022] Open
Abstract
Aquaporins (AQPs) are universal membrane integrated water channel proteins that selectively and reversibly facilitate the movement of water, gases, metalloids, and other small neutral solutes across cellular membranes in living organisms. Compared with other organisms, plants have the largest number of AQP members with diverse characteristics, subcellular localizations and substrate permeabilities. AQPs play important roles in plant water relations, cell turgor pressure maintenance, the hydraulic regulation of roots and leaves, and in leaf transpiration, root water uptake, and plant responses to multiple biotic and abiotic stresses. They are also required for plant growth and development. In this review, we comprehensively summarize the expression and roles of diverse AQPs in the growth and development of various vegetative and reproductive organs in plants. The functions of AQPs in the intracellular translocation of hydrogen peroxide are also discussed.
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10
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Vanani FR, Shabani L, Sabzalian MR, Dehghanian F, Winner L. Comparative physiological and proteomic analysis indicates lower shock response to drought stress conditions in a self-pollinating perennial ryegrass. PLoS One 2020; 15:e0234317. [PMID: 32555744 PMCID: PMC7302502 DOI: 10.1371/journal.pone.0234317] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 05/22/2020] [Indexed: 12/05/2022] Open
Abstract
We investigated the physiological and proteomic changes in the leaves of three Lolium perenne genotypes, one Iranian putative self-pollinating genotype named S10 and two commercial genotypes of Vigor and Speedy, subjected to drought stress conditions. The results of this study indeed showed higher RWC (relative water content), SDW (shoot dry weight), proline, ABA (abscisic acid), nitrogen and amino acid contents, and antioxidant enzymes activities of S10 under drought stress in comparison with the two other genotypes. A total of 915 proteins were identified using liquid chromatography-mass spectrometry (LC/MS) analysis, and the number of differentially abundant proteins between normal and stress conditions was 467, 456, and 99 in Vigor, Speedy, and S10, respectively. Proteins involved in carbon and energy metabolism, photosynthesis, TCA cycle, redox, and transport categories were up-regulated in the two commercial genotypes. We also found that some protein inductions, including those involved in amino acid and ABA metabolisms, aquaporin, HSPs, photorespiration, and increases in the abundance of antioxidant enzymes, are essential responses of the two commercial genotypes to drought stress. In contrast, we observed only slight changes in the protein profile of the S10 genotype under drought stress. Higher homozygosity due to self-pollination in the genetic background of the S10 genotype may have led to a lower variation in response to drought stress conditions.
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Affiliation(s)
- Fatemeh Raeisi Vanani
- Department of Plant Science, Faculty of Science, Shahrekord University, Shahrekord, Iran
| | - Leila Shabani
- Department of Plant Science, Faculty of Science, Shahrekord University, Shahrekord, Iran
- Research Institute of Biotechnology, Shahrekord University, Shahrekord, Iran
| | - Mohammad R. Sabzalian
- Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Fariba Dehghanian
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Lisa Winner
- Core Facility Proteomics, Center for Biological Systems Analysis (ZBSA), University of Freiburg, Freiburg, Germany
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11
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Wan S, Zhang Y, Duan M, Huang L, Wang W, Xu Q, Yang Y, Yu Y. Integrated Analysis of Long Non-coding RNAs (lncRNAs) and mRNAs Reveals the Regulatory Role of lncRNAs Associated With Salt Resistance in Camellia sinensis. FRONTIERS IN PLANT SCIENCE 2020; 11:218. [PMID: 32265948 PMCID: PMC7096555 DOI: 10.3389/fpls.2020.00218] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 02/12/2020] [Indexed: 05/08/2023]
Abstract
Tea plant (Camellia sinensis), an important economic crop, is seriously affected by various abiotic stresses, including salt stress, which severely diminishes its widespread planting. However, little is known about the roles of long non-coding RNAs (lncRNAs) in transcriptional regulation under salt stress. In this study, high-throughput sequencing of tea shoots under salt-stress and control conditions was performed. Through sequencing analysis, 16,452 unique lncRNAs were identified, including 172 differentially expressed lncRNAs (DE-lncRNAs). The results of Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses of their cis- and trans-target genes showed that these DE-lncRNAs play important roles in many pathways such as the galactinol synthase (GOLS), calcium signaling pathway, and interact with transcription factors (TFs) under salt stress. The data from the gene-specific antisense oligodeoxynucleotide-mediated reduction in the lncRNA MSTRG.139242.1 and its predicted interacting gene, TEA027212.1 (Ca2+-ATPase 13), in tea leaves revealed that MSTRG.139242.1 may function in the response of tea plants to high salinity. In addition, 12 lncRNAs were predicted to be target mimics of 17 known mature miRNAs, such as miR156, that are related to the salt-stress response in C. sinensis. Our results provide new insights into lncRNAs as ubiquitous regulators in response to salt stress in tea plants.
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Affiliation(s)
- Siqing Wan
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Yongheng Zhang
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Mengsha Duan
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Linli Huang
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Weidong Wang
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Qingshan Xu
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Yajun Yang
- College of Horticulture, Northwest A&F University, Yangling, China
- Tea Research Institute, Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China
- *Correspondence: Yajun Yang,
| | - Youben Yu
- College of Horticulture, Northwest A&F University, Yangling, China
- Youben Yu,
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12
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Hu Z, Ban Q, Hao J, Zhu X, Cheng Y, Mao J, Lin M, Xia E, Li Y. Genome-Wide Characterization of the C-repeat Binding Factor (CBF) Gene Family Involved in the Response to Abiotic Stresses in Tea Plant ( Camellia sinensis). FRONTIERS IN PLANT SCIENCE 2020; 11:921. [PMID: 32849669 PMCID: PMC7396485 DOI: 10.3389/fpls.2020.00921] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 06/05/2020] [Indexed: 05/18/2023]
Abstract
C-repeat (CRT)/dehydration responsive element (DRE)-binding factor CBFs, a small family of genes encoding transcriptional activators, play important roles in plant cold tolerance. In this study, a comprehensive genome-wide analysis was carried out to identify and characterize the functional dynamics of CsCBFs in tea plant (Camellia sinensis). A total of 6 CBF genes were obtained from the tea plant genome and named CBF1-6. All of the CsCBFs had an AP2/ERF DNA-binding domain and nuclear localization signal (NLS) sequence. CsCBF-eGFP fusion and DAPI staining analysis confirmed the nuclear localization of the CsCBFs. Transactivation assays showed that the CsCBFs, except CsCBF1, had transcriptional activity. CsCBF expression was differentially induced by cold, heat, PEG, salinity, ABA, GA, MeJA, and SA stresses. In particular, the CsCBF genes were significantly induced by cold treatments. To further characterize the functions of CsCBF genes, we overexpressed the CsCBF3 gene in Arabidopsis thaliana plants. The resulting transgenic plants showed increased cold tolerance compared with the wild-type Arabidopsis plant. The enhanced cold tolerance of the transgenic plants was potentially achieved through an ABA-independent pathway. This study will help to increase our understanding of CsCBF genes and their contributions to stress tolerance in tea plants.
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13
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Vishwakarma K, Mishra M, Patil G, Mulkey S, Ramawat N, Pratap Singh V, Deshmukh R, Kumar Tripathi D, Nguyen HT, Sharma S. Avenues of the membrane transport system in adaptation of plants to abiotic stresses. Crit Rev Biotechnol 2019; 39:861-883. [DOI: 10.1080/07388551.2019.1616669] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kanchan Vishwakarma
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
| | - Mitali Mishra
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
| | - Gunvant Patil
- Department of Agronomy and Plant Genetics, University of Minnesota St. Paul, Minnesota, MN, USA
| | - Steven Mulkey
- Department of Agronomy and Plant Genetics, University of Minnesota St. Paul, Minnesota, MN, USA
| | - Naleeni Ramawat
- Amity Institute of Organic Agriculture, Amity University, Uttar Pradesh, Noida, India
| | - Vijay Pratap Singh
- Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Allahabad, India
| | - Rupesh Deshmukh
- National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | | | - Henry T. Nguyen
- Department of Agronomy and Plant Genetics, University of Minnesota St. Paul, Minnesota, MN, USA
| | - Shivesh Sharma
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
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14
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Li X, Liu Q, Feng H, Deng J, Zhang R, Wen J, Dong J, Wang T. Dehydrin MtCAS31 promotes autophagic degradation under drought stress. Autophagy 2019; 16:862-877. [PMID: 31362589 PMCID: PMC7144882 DOI: 10.1080/15548627.2019.1643656] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Drought stress seriously affects crop yield, and the mechanism underlying plant resistance to drought stress via macroautophagy/autophagy is not clear. Here, we show that a dehydrin, Medicago truncatula MtCAS31 (cold acclimation-specific 31), a positive regulator of drought response, plays a key role in autophagic degradation. A GFP cleavage assay and treatment with an autophagy-specific inhibitor indicated that MtCAS31 participates in the autophagic degradation pathway and that overexpressing MtCAS31 promotes autophagy under drought stress. Furthermore, we discovered that MtCAS31 interacts with the autophagy-related protein ATG8a in the AIM-like motif YXXXI, supporting its function in autophagic degradation. In addition, we identified a cargo protein of MtCAS31, the aquaporin MtPIP2;7, by screening an M. truncatula cDNA library. We found that MtPIP2;7 functions as a negative regulator of drought response. Under drought stress, MtCAS31 facilitated the autophagic degradation of MtPIP2;7 and reduced root hydraulic conductivity, thus reducing water loss and improving drought tolerance. Taken together, our results reveal a novel function of dehydrins in promoting the autophagic degradation of proteins, which extends our knowledge of the function of dehydrins.Abbreviations: AIM: ATG8-interacting motif; ATG: autophagy-related; ATI1: ATG8-interacting protein1; BiFC: Biomolecular fluorescence complementation; CAS31: cold acclimation-specific 31; ConcA: concanamycin A; DSK2: dominant suppressor of KAR2; ER: endoplasmic reticulum; ERAD: ER-associated degradation; NBR1: next to BRCA1 gene 1; PM: plasma membrane; PIPs: plasma membrane intrinsic proteins; TALEN: transcription activator-like effector nuclease; TSPO: tryptophan-rich sensory protein/translocator; UPR: unfolded protein response; VC: vector control.
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Affiliation(s)
- Xin Li
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Qianwen Liu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Hao Feng
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Jie Deng
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Rongxue Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Jiangqi Wen
- Plant Biology Division, Samuel Roberts Noble Research Institute, Ardmore, OK, USA
| | - Jiangli Dong
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Tao Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
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15
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Yue C, Cao H, Lin H, Hu J, Ye Y, Li J, Hao Z, Hao X, Sun Y, Yang Y, Wang X. Expression patterns of alpha-amylase and beta-amylase genes provide insights into the molecular mechanisms underlying the responses of tea plants (Camellia sinensis) to stress and postharvest processing treatments. PLANTA 2019; 250:281-298. [PMID: 31025197 DOI: 10.1007/s00425-019-03171-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 04/22/2019] [Indexed: 05/27/2023]
Abstract
The alpha-amylase and beta-amylase genes have been identified from tea plants, and their bioinformatic characteristics and expression patterns provide a foundation for further studies to elucidate their biological functions. Alpha-amylase (AMY)- and beta-amylase (BAM)-mediated starch degradation plays central roles in carbohydrate metabolism and participates extensively in the regulation of a wide range of biological processes, including growth, development and stress response. However, the AMY and BAM genes in tea plants (Camellia sinensis) are poorly understood, and the biological functions of these genes remain to be elucidated. In this study, three CsAMY and nine CsBAM genes from tea plants were identified based on genomic and transcriptomic database analyses, and the genes were subjected to comprehensive bioinformatic characterization. Phylogenetic analysis showed that the CsAMY proteins could be clustered into three different subfamilies, and nine CsBAM proteins could be classified into four groups. Putative catalytically active proteins were identified based on multiple sequence alignments, and the tertiary structures of these proteins were analyzed. Cis-element analysis indicated that CsAMY and CsBAM were extensively involved in tea plant growth, development and stress response. In addition, the CsAMY and CsBAM genes were differentially expressed in various tissues and were regulated by stress treatments (e.g., ABA, cold, drought and salt stress), and the expression patterns of these genes were associated with the postharvest withering and rotation processes. Taken together, our results will enhance the understanding of the roles of the CsAMY and CsBAM gene families in the growth, development and stress response of tea plants and of the potential functions of these genes in determining tea quality during the postharvest processing of tea leaves.
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Affiliation(s)
- Chuan Yue
- College of Horticulture, Fujian Agriculture and Forestry University/Key Laboratory of Tea Science, Universities of Fujian Province, Fuzhou, China.
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Plant Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China.
| | - Hongli Cao
- College of Horticulture, Fujian Agriculture and Forestry University/Key Laboratory of Tea Science, Universities of Fujian Province, Fuzhou, China
| | - Hongzheng Lin
- College of Horticulture, Fujian Agriculture and Forestry University/Key Laboratory of Tea Science, Universities of Fujian Province, Fuzhou, China
| | - Juan Hu
- College of Horticulture, Fujian Agriculture and Forestry University/Key Laboratory of Tea Science, Universities of Fujian Province, Fuzhou, China
| | - Yijun Ye
- College of Horticulture, Fujian Agriculture and Forestry University/Key Laboratory of Tea Science, Universities of Fujian Province, Fuzhou, China
| | - Jiamin Li
- College of Horticulture, Fujian Agriculture and Forestry University/Key Laboratory of Tea Science, Universities of Fujian Province, Fuzhou, China
| | - Zhilong Hao
- College of Horticulture, Fujian Agriculture and Forestry University/Key Laboratory of Tea Science, Universities of Fujian Province, Fuzhou, China
| | - Xinyuan Hao
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Plant Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China
| | - Yun Sun
- College of Horticulture, Fujian Agriculture and Forestry University/Key Laboratory of Tea Science, Universities of Fujian Province, Fuzhou, China
| | - Yajun Yang
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Plant Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China.
| | - Xinchao Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Plant Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China.
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16
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Priya M, Dhanker OP, Siddique KHM, HanumanthaRao B, Nair RM, Pandey S, Singh S, Varshney RK, Prasad PVV, Nayyar H. Drought and heat stress-related proteins: an update about their functional relevance in imparting stress tolerance in agricultural crops. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2019; 132:1607-1638. [PMID: 30941464 DOI: 10.1007/s00122-019-03331-2] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 03/19/2019] [Indexed: 05/21/2023]
Abstract
We describe here the recent developments about the involvement of diverse stress-related proteins in sensing, signaling, and defending the cells in plants in response to drought or/and heat stress. In the current era of global climate drift, plant growth and productivity are often limited by various environmental stresses, especially drought and heat. Adaptation to abiotic stress is a multigenic process involving maintenance of homeostasis for proper survival under adverse environment. It has been widely observed that a series of proteins respond to heat and drought conditions at both transcriptional and translational levels. The proteins are involved in various signaling events, act as key transcriptional activators and saviors of plants under extreme environments. A detailed insight about the functional aspects of diverse stress-responsive proteins may assist in unraveling various stress resilience mechanisms in plants. Furthermore, by identifying the metabolic proteins associated with drought and heat tolerance, tolerant varieties can be produced through transgenic/recombinant technologies. A large number of regulatory and functional stress-associated proteins are reported to participate in response to heat and drought stresses, such as protein kinases, phosphatases, transcription factors, and late embryogenesis abundant proteins, dehydrins, osmotins, and heat shock proteins, which may be similar or unique to stress treatments. Few studies have revealed that cellular response to combined drought and heat stresses is distinctive, compared to their individual treatments. In this review, we would mainly focus on the new developments about various stress sensors and receptors, transcription factors, chaperones, and stress-associated proteins involved in drought or/and heat stresses, and their possible role in augmenting stress tolerance in crops.
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Affiliation(s)
- Manu Priya
- Department of Botany, Panjab University, Chandigarh, India
| | - Om P Dhanker
- Stockbridge School of Agriculture, University of Massachusetts Amherst, Amherst, MA, 01003, USA
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture, University of Western Australia, Perth, WA, Australia
| | | | | | - Sarita Pandey
- Center of Excellence in Genomics and Systems Biology, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Hyderabad, Telangana, 502324, India
| | - Sadhana Singh
- Center of Excellence in Genomics and Systems Biology, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Hyderabad, Telangana, 502324, India
| | - Rajeev K Varshney
- Center of Excellence in Genomics and Systems Biology, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Hyderabad, Telangana, 502324, India
| | - P V Vara Prasad
- Sustainable Intensification Innovation Lab, Kansas State University, Manhattan, KS, USA
| | - Harsh Nayyar
- Department of Botany, Panjab University, Chandigarh, India.
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17
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Feng ZJ, Liu N, Zhang GW, Niu FG, Xu SC, Gong YM. Investigation of the AQP Family in Soybean and the Promoter Activity of TIP2;6 in Heat Stress and Hormone Responses. Int J Mol Sci 2019; 20:E262. [PMID: 30634702 PMCID: PMC6359280 DOI: 10.3390/ijms20020262] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 12/29/2018] [Accepted: 01/07/2019] [Indexed: 12/22/2022] Open
Abstract
Aquaporins (AQPs) are one diverse family of membrane channel proteins that play crucial regulatory roles in plant stress physiology. However, the heat stress responsiveness of AQP genes in soybean remains poorly understood. In this study, 75 non-redundant AQP encoding genes were identified in soybean. Multiple sequence alignments showed that all GmAQP proteins possessed the conserved regions, which contained 6 trans-membrane domains (TM1 to TM6). Different GmAQP members consisted of distinct Asn-Pro-Ala (NPA) motifs, aromatic/arginine (ar/R) selectivity filters and Froger's positions (FPs). Phylogenetic analyses distinguished five sub-families within these GmAQPs: 24 GmPIPs, 24 GmTIPs, 17 GmNIPs, 8 GmSIPs, and 2 GmXIPs. Promoter cis-acting elements analyses revealed that distinct number and composition of heat stress and hormone responsive elements existed in different promoter regions of GmAQPs. QRT-PCR assays demonstrated that 12 candidate GmAQPs with relatively extensive expression in various tissues or high expression levels in root or leaf exhibited different expression changes under heat stress and hormone cues (abscisic acid (ABA), l-aminocyclopropane-l-carboxylic acid (ACC), salicylic acid (SA) and methyl jasmonate (MeJA)). Furthermore, the promoter activity of one previously functionally unknown AQP gene-GmTIP2;6 was investigated in transgenic Arabidopsis plants. The beta-glucuronidase (GUS) activity driven by the promoter of GmTIP2;6 was strongly induced in the heat- and ACC-treated transgenic plants and tended to be accumulated in the hypocotyls, vascular bundles, and leaf trichomes. These results will contribute to uncovering the potential functions and molecular mechanisms of soybean GmAQPs in mediating heat stress and hormone signal responses.
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Affiliation(s)
- Zhi-Juan Feng
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Na Liu
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Gu-Wen Zhang
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Fu-Ge Niu
- Food Safety Key Lab of Zhejiang Province, The School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China.
| | - Sheng-Chun Xu
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Ya-Ming Gong
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
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18
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Qian W, Xiao B, Wang L, Hao X, Yue C, Cao H, Wang Y, Li N, Yu Y, Zeng J, Yang Y, Wang X. CsINV5, a tea vacuolar invertase gene enhances cold tolerance in transgenic Arabidopsis. BMC PLANT BIOLOGY 2018; 18:228. [PMID: 30309330 PMCID: PMC6182829 DOI: 10.1186/s12870-018-1456-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 10/01/2018] [Indexed: 05/21/2023]
Abstract
BACKGROUND Vacuolar invertases (VINs) have been reported to regulate plant growth and development and respond to abiotic stresses such as drought and cold. With our best knowledge, the functions of VIN genes little have been reported in tea plant (Camellia sinensis L.). Therefore, it is necessary to develop research in this field. RESULTS Here, we identified a VIN gene, CsINV5, which was induced by cold acclimation and sugar treatments in the tea plant. Histochemical assays results showed that the 1154 bp 5'-flanking sequence of CsINV5 drove β-glucuronidase (GUS) gene expression in roots, stems, leaves, flowers and siliques of transgenic Arabidopsis during different developmental stages. Moreover, promoter deletion analysis results revealed that an LTRE-related motif (CCGAAA) and a WBOXHVISO1 motif (TGACT) within the promoter region of CsINV5 were the core cis-elements in response to low temperature and sugar signaling, respectively. In addition, overexpression of CsINV5 in Arabidopsis promoted taproot and lateral root elongation through glucose-mediated effects on auxin signaling. Based on physiological and RNA-seq analysis, we found that overexpression of CsINV5 improved cold tolerance in transgenic Arabidopsis mainly by increasing the contents of glucose and fructose, the corresponding ratio of hexose to sucrose, and the transcription of osmotic-stress-related genes (P5CS1, P5CS2, AtLEA3, COR413-PM1 and COR15B) to adjust its osmotic potential. CONCLUSIONS Comprehensive experimental results suggest that overexpression of CsINV5 may enhance the cold tolerance of plant through the modification of cellular sugar compounds contents and osmotic regulation related pathways.
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Affiliation(s)
- Wenjun Qian
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China
- College of Horticulture, Qingdao Agricultural University, Qingdao, Shandong China
| | - Bin Xiao
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi China
| | - Lu Wang
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China
| | - Xinyuan Hao
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China
| | - Chuan Yue
- Department of Tea Science, College of Horticulture, Fujian A & F University, Fuzhou, China
| | - Hongli Cao
- Department of Tea Science, College of Horticulture, Fujian A & F University, Fuzhou, China
| | - Yuchun Wang
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China
| | - Nana Li
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China
| | - Youben Yu
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi China
| | - Jianming Zeng
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China
| | - Yajun Yang
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China
| | - Xinchao Wang
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, China
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19
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Li W, Qiang XJ, Han XR, Jiang LL, Zhang SH, Han J, He R, Cheng XG. Ectopic Expression of a Thellungiella salsuginea Aquaporin Gene, TsPIP1;1, Increased the Salt Tolerance of Rice. Int J Mol Sci 2018; 19:ijms19082229. [PMID: 30061546 PMCID: PMC6122036 DOI: 10.3390/ijms19082229] [Citation(s) in RCA: 16] [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: 06/25/2018] [Revised: 07/24/2018] [Accepted: 07/26/2018] [Indexed: 11/25/2022] Open
Abstract
Aquaporins play important regulatory roles in the transport of water and small molecules in plants. In this study, a Thellungiella salsuginea TsPIP1;1 aquaporin was transformed into Kitaake rice, and three transgenic lines were evaluated by profiling the changes of the physiological metabolism, osmotic potential, and differentially expressed genes under salt stress. The TsPIP1;1 protein contains six transmembrane domains and is localized in the cytoplasm membrane. Overexpression of the TsPIP1;1 gene not only increased the accumulation of prolines, soluble sugars and chlorophyll, but also lowered the osmotic potential and malondialdehyde content in rice under salt stress, and alleviated the amount of salt damage done to rice organs by regulating the distribution of Na/K ions, thereby promoting photosynthetic rates. Transcriptome sequencing confirmed that the differentially expressed genes that are up-regulated in rice positively respond to salt stimulus, the photosynthetic metabolic process, and the accumulation profiles of small molecules and Na/K ions. The co-expressed Rubisco and LHCA4 genes in rice were remarkably up-regulated under salt stress. This data suggests that overexpression of the TsPIP1;1 gene is involved in the regulation of water transport, the accumulation of Na/K ions, and the translocation of photosynthetic metabolites, thus conferring enhanced salt tolerance to rice.
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Affiliation(s)
- Wei Li
- Lab of Plant Nutrition Molecular Biology, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Xiao-Jing Qiang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Xiao-Ri Han
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China.
| | - Lin-Lin Jiang
- Lab of Plant Nutrition Molecular Biology, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Shu-Hui Zhang
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China.
| | - Jiao Han
- College of Life Science, Shanxi Normal University, Linfen 041004, China.
| | - Rui He
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China.
| | - Xian-Guo Cheng
- Lab of Plant Nutrition Molecular Biology, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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20
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Li NN, Yue C, Cao HL, Qian WJ, Hao XY, Wang YC, Wang L, Ding CQ, Wang XC, Yang YJ. Transcriptome sequencing dissection of the mechanisms underlying differential cold sensitivity in young and mature leaves of the tea plant (Camellia sinensis). JOURNAL OF PLANT PHYSIOLOGY 2018; 224-225:144-155. [PMID: 29642051 DOI: 10.1016/j.jplph.2018.03.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 03/27/2018] [Accepted: 03/27/2018] [Indexed: 06/08/2023]
Abstract
The tea plant originated in tropical and subtropical regions and experiences considerable challenges during cold winters and late spring frosts. After short-term chilling stress, young leaves of tea plants exhibit browning, a significant increase in electrolyte leakage and a marked decrease in the maximal photochemical efficiency of photosystem II (Fv/Fm) compared with mature leaves. To identify the mechanisms underlying the different chilling tolerance between young and mature leaves of the tea plant, we used Illumina RNA-Seq technology to analyse the transcript expression profiles of young and mature leaves exposed to temperatures of 20 °C, 4 °C, and 0 °C for 4 h. A total of 45.70-72.93 million RNA-Seq raw reads were obtained and then de novo assembled into 228,864 unigenes with an average length of 601 bp and an N50 of 867 bp. In addition, the differentially expressed unigenes were identified via Venn diagram analyses for paired comparisons of young and mature leaves. Functional classifications based on Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses revealed that the up-regulated differentially expressed genes were predominantly related to the cellular component terms of chloroplasts and cell membranes, the biological process term of oxidation-reduction process as well as the pathway terms of glutathione metabolism and photosynthesis, suggesting that these components and pathways may contribute to the cold hardiness of mature leaves. Conversely, the inhibited expression of genes related to cell membranes, carotenoid metabolism, photosynthesis, and ROS detoxification in young leaves under cold conditions might lead to the disintegration of cell membranes and oxidative damage to the photosynthetic apparatus. Further quantitative real-time PCR testing validated the reliability of our RNA-Seq results. This work provides valuable information for understanding the mechanisms underlying the cold susceptibility of young tea plant leaves and for breeding tea cultivars with superior frost resistance via the genetic manipulation of antioxidant enzymes.
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Affiliation(s)
- Na-Na Li
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China
| | - Chuan Yue
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Department of Tea Science, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hong-Li Cao
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Department of Tea Science, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Wen-Jun Qian
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Xin-Yuan Hao
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China
| | - Yu-Chun Wang
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China
| | - Lu Wang
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China
| | - Chang-Qing Ding
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China
| | - Xin-Chao Wang
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China.
| | - Ya-Jun Yang
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China.
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21
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Wang L, Yao L, Hao X, Li N, Qian W, Yue C, Ding C, Zeng J, Yang Y, Wang X. Tea plant SWEET transporters: expression profiling, sugar transport, and the involvement of CsSWEET16 in modifying cold tolerance in Arabidopsis. PLANT MOLECULAR BIOLOGY 2018; 96:577-592. [PMID: 29616437 DOI: 10.1007/s11103-018-0716-y] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 03/06/2018] [Indexed: 05/18/2023]
Abstract
Thirteen SWEET transporters were identified in Camellia sinensis and the cold-suppression gene CsSWEET16 contributed to sugar compartmentation across the vacuole and function in modifying cold tolerance in Arabidopsis. The sugars will eventually be exported transporters (SWEET) family of sugar transporters in plants is a recently identified protein family of sugar uniporters that contain seven transmembrane helices harbouring two MtN3 motifs. SWEETs play important roles in various biological processes, including plant responses to environmental stimuli. In this study, 13 SWEET transporters were identified in Camellia sinensis and were divided into four clades. Transcript abundances of CsSWEET genes were detected in various tissues. CsSWEET1a/1b/2a/2b/2c/3/9b/16/17 were expressed in all of the selected tissues, whereas the expression of CsSWEET5/7/9a/15 was not detected in some tissues, including those of mature leaves. Expression analysis of nine CsSWEET genes in leaves in response to abiotic stresses, natural cold acclimation and Colletotrichum camelliae infection revealed that eight CsSWEET genes responded to abiotic stress, while CsSWEET3 responded to C. camelliae infection. Functional analysis of 13 CsSWEET activities in yeast revealed that CsSWEET1a/1b/7/17 exhibit transport activity for glucose analogues and other types of hexose molecules. Further characterization of the cold-suppression gene CsSWEET16 revealed that this gene is localized in the vacuolar membrane. CsSWEET16 contributed to sugar compartmentation across the vacuole and function in modifying cold tolerance in Arabidopsis. Together, these findings demonstrate that CsSWEET genes play important roles in the response to abiotic and biotic stresses in tea plants and provide insights into the characteristics of SWEET genes in tea plants, which could serve as the basis for further functional identification of such genes.
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Affiliation(s)
- Lu Wang
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South of Meiling Road, Hangzhou, 310008, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Lina Yao
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South of Meiling Road, Hangzhou, 310008, China
| | - Xinyuan Hao
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South of Meiling Road, Hangzhou, 310008, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Nana Li
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South of Meiling Road, Hangzhou, 310008, China
| | - Wenjun Qian
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South of Meiling Road, Hangzhou, 310008, China
| | - Chuan Yue
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South of Meiling Road, Hangzhou, 310008, China
| | - Changqing Ding
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South of Meiling Road, Hangzhou, 310008, China
| | - Jianming Zeng
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South of Meiling Road, Hangzhou, 310008, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Yajun Yang
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South of Meiling Road, Hangzhou, 310008, China.
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China.
| | - Xinchao Wang
- National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South of Meiling Road, Hangzhou, 310008, China.
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China.
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22
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Yue C, Cao H, Hao X, Zeng J, Qian W, Guo Y, Ye N, Yang Y, Wang X. Differential expression of gibberellin- and abscisic acid-related genes implies their roles in the bud activity-dormancy transition of tea plants. PLANT CELL REPORTS 2018; 37:425-441. [PMID: 29214380 DOI: 10.1007/s00299-017-2238-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 11/20/2017] [Indexed: 05/20/2023]
Abstract
Thirty genes involved in GA and ABA metabolism and signalling were identified, and the expression profiles indicated that they play crucial roles in the bud activity-dormancy transition in tea plants. Gibberellin (GA) and abscisic acid (ABA) are fundamental phytohormones that extensively regulate plant growth and development, especially bud dormancy and sprouting transition in perennial plants. However, there is little information on GA- and ABA-related genes and their expression profiles during the activity-dormancy transition in tea plants. In the present study, 30 genes involved in the metabolism and signalling pathways of GA and ABA were first identified, and their expression patterns in different tissues were assessed. Further evaluation of the expression patterns of selected genes in response to GA3 and ABA application showed that CsGA3ox, CsGA20ox, CsGA2ox, CsZEP and CsNCED transcripts were differentially expressed after exogenous treatment. The expression profiles of the studied genes during winter dormancy and spring sprouting were investigated, and somewhat diverse expression patterns were found for GA- and ABA-related genes. This diversity was associated with the bud activity-dormancy cycle of tea plants. These results indicate that the genes involved in the metabolism and signalling of GA and ABA are important for regulating the bud activity-dormancy transition in tea plants.
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Affiliation(s)
- Chuan Yue
- College of Horticulture, Key Laboratory of Tea Science in Universities of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Hongli Cao
- College of Horticulture, Key Laboratory of Tea Science in Universities of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Xinyuan Hao
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Jianming Zeng
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Wenjun Qian
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Yuqiong Guo
- College of Horticulture, Key Laboratory of Tea Science in Universities of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Naixing Ye
- College of Horticulture, Key Laboratory of Tea Science in Universities of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yajun Yang
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China.
| | - Xinchao Wang
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China.
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23
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Feng ZJ, Xu SC, Liu N, Zhang GW, Hu QZ, Xu ZS, Gong YM. Identification of the AQP members involved in abiotic stress responses from Arabidopsis. Gene 2018; 646:64-73. [DOI: 10.1016/j.gene.2017.12.048] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 12/22/2017] [Indexed: 11/26/2022]
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Putpeerawit P, Sojikul P, Thitamadee S, Narangajavana J. Genome-wide analysis of aquaporin gene family and their responses to water-deficit stress conditions in cassava. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 121:118-127. [PMID: 29100101 DOI: 10.1016/j.plaphy.2017.10.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 10/13/2017] [Accepted: 10/26/2017] [Indexed: 05/27/2023]
Abstract
Cassava (Manihot esculenta Crantz) is an important economic crop in tropical countries. Although cassava is considered a drought-tolerant crop that can grow in arid areas, the impact of drought can significantly reduce the growth and yield of cassava storage roots. The discovery of aquaporin molecules (AQPs) in plants has resulted in a paradigm shift in the understanding of plant-water relationships, whereas the relationship between aquaporin and drought resistance in cassava still remains elusive. To investigate the potential role of aquaporin in cassava under water-deficit conditions, 45 putative MeAQPs were identified in the cassava genome. Six members of MeAQPs, containing high numbers of water stress-responsive motifs in their promoter regions, were selected for a gene expression study. Two cassava cultivars, which showed different degrees of responses to water-deficit stress, were used to test in in vitro and potted plant systems. The differential expression of all candidate MeAQPs were found in only leaves from the potted plant system were consistent with the relative water content and with the stomatal closure profile of the two cultivars. MePIP2-1 and MePIP2-10 were up-regulated and this change in their expression might regulate a special signal for water efflux out of guard cells, thus inducing stomatal closure under water-deficit conditions. In addition, the expression profiles of genes in the ABA-dependent pathway revealed an essential correlation with stomatal closure. The potential functions of MeAQPs and candidate ABA-dependent pathway genes in response to water deficit in the more tolerant cassava cultivar were discussed.
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Affiliation(s)
- Pattaranit Putpeerawit
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok, Thailand; Center of Excellence on Agricultural Biotechnology (AG-BIO/PERDO-CHE), Bangkok, Thailand
| | - Punchapat Sojikul
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Siripong Thitamadee
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Jarunya Narangajavana
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok, Thailand; Center of Excellence on Agricultural Biotechnology (AG-BIO/PERDO-CHE), Bangkok, Thailand.
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25
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Genome-Wide Analysis of the Biosynthesis and Deactivation of Gibberellin-Dioxygenases Gene Family in Camellia sinensis (L.) O. Kuntze. Genes (Basel) 2017; 8:genes8090235. [PMID: 28925957 PMCID: PMC5615368 DOI: 10.3390/genes8090235] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/11/2017] [Accepted: 09/15/2017] [Indexed: 12/20/2022] Open
Abstract
Gibberellins (GAs), a class of diterpenoid phytohormones, play a key role in regulating diverse processes throughout the life cycle of plants. Bioactive GA levels are rapidly regulated by Gibberellin-dioxygenases (GAox), which are involved in the biosynthesis and deactivation of gibberellin. In this manuscript, a comprehensive genome-wide analysis was carried out to find all GAox in Camellia sinensis. For the first time in a tea plant, 14 CsGAox genes, containing two domains, DIOX_N (PF14226) and 2OG-FeII_Oxy, were identified (PF03171). These genes all belong to 2-oxoglutarate-dependent dioxygenases (2-ODD), including four CsGA20ox (EC: 1.14.11.12), three CsGA3ox (EC: 1.14.11.15), and seven CsGA2ox (EC: 1.14.11.13). According to the phylogenetic classification as in Arabidopsis, the CsGAox genes spanned five subgroups. Each CsGAox shows tissue-specific expression patterns, although these vary greatly. Some candidate genes, which may play an important role in response to external abiotic stresses, have been identified with regards to patterns, such as CsGA20ox2, CsGA3ox2, CsGA3ox3, CsGA2ox1, CsGA2ox2, and CsGA2ox4. The bioactive GA levels may be closely related to the GA20ox, GA3ox and GA2ox genes. In addition, the candidate genes could be used as marker genes for abiotic stress resistance breeding in tea plants.
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26
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Barrios A, Caminero C, García P, Krezdorn N, Hoffmeier K, Winter P, Pérez de la Vega M. Deep Super-SAGE transcriptomic analysis of cold acclimation in lentil (Lens culinaris Medik.). BMC PLANT BIOLOGY 2017; 17:111. [PMID: 28666411 PMCID: PMC5493078 DOI: 10.1186/s12870-017-1057-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 06/14/2017] [Indexed: 05/24/2023]
Abstract
BACKGROUND Frost is one of the main abiotic stresses limiting plant distribution and crop production. To cope with the stress, plants evolved adaptations known as cold acclimation or chilling tolerance to maximize frost tolerance. Cold acclimation is a progressive acquisition of freezing tolerance by plants subjected to low non-freezing temperatures which subsequently allows them to survive exposure to frost. Lentil is a cool season grain legume that is challenged by winter frost in some areas of its cultivation. RESULTS To better understand the genetic base of frost tolerance differential gene expression in response to cold acclimation was investigated. Recombinant inbred lines (RILs) from the cross Precoz x WA8649041 were first classified as cold tolerant or cold susceptible according to their response to temperatures between -3 to -15 °C. Then, RILs from both extremes of the response curve were cold acclimated and the leaf transcriptomes of two bulks each of eight frost tolerant and seven cold susceptible RILs were investigated by Deep Super-SAGE transcriptome profiling. Thus, four RNA bulks were analysed: the acclimated susceptible, the acclimated tolerant and the respective controls (non-acclimated susceptible and non-acclimated tolerant). Approximately 16.5 million 26 nucleotide long Super-SAGE tags were sequenced in the four sets (between ~3 and 5.4 millions). In total, 133,077 different unitags, each representing a particular transcript isoform, were identified in these four sets. Tags which showed a significantly different abundance in any of the bulks (fold change ≥4.0 and a significant p-value <0.001) were selected and used to identify the corresponding lentil gene sequence. Three hundred of such lentil sequences were identified. Most of their known homologs coded for glycine-rich, cold and drought-regulated proteins, dormancy-associated proteins, proline-rich proteins (PRPs) and other membrane proteins. These were generally but not exclusively over-expressed in the acclimated tolerant lines. CONCLUSIONS This set of candidate genes implicated in the response to frost in lentil represents an useful base for deeper and more detailed investigations into this important agronomic trait in future.
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Affiliation(s)
- Abel Barrios
- Instituto Tecnológico Agrario de Castilla y León, Consejería de Agricultura y Ganadería, Junta de Castilla y León, Finca Zamadueñas, Ctra. Burgos km, 119, 47071 Valladolid, Spain
- Present Address: Escuela Universitaria de Ingeniería Agrícola I.N.E.A, Con. Viejo de Simancas, Km. 4.5, 47008 Valladolid, Spain
| | - Constantino Caminero
- Instituto Tecnológico Agrario de Castilla y León, Consejería de Agricultura y Ganadería, Junta de Castilla y León, Finca Zamadueñas, Ctra. Burgos km, 119, 47071 Valladolid, Spain
| | - Pedro García
- Area de Genética, Departamento de Biología Molecular, Universidad de León, 24071 León, Spain
| | | | - Klaus Hoffmeier
- GenXPro, Altenhöferallee 3, D-60438 Frankfurt am Main, Germany
| | - Peter Winter
- GenXPro, Altenhöferallee 3, D-60438 Frankfurt am Main, Germany
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27
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Ni ZX, Cui JM, Zhang NZ, Fu BQ. Structural and evolutionary divergence of aquaporins in parasites (Review). Mol Med Rep 2017; 15:3943-3948. [PMID: 28440467 PMCID: PMC5436202 DOI: 10.3892/mmr.2017.6505] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 02/28/2017] [Indexed: 11/05/2022] Open
Abstract
Aquaporins are ubiquitous proteins that belong to the major intrinsic protein family. Previous studies have indicated that aquaporins are involved in multiple physiological processes in parasites, such as nutrient absorption and end product efflux, and thus, would be promising pharmacological agents in the fight against parasite infection. In the present paper, the authors analyzed the evolutionary relationship of parasitic aquaporins by re‑constructing of a phylogenic tree using neighbor‑joining and maximum likelihood methods. In addition, the authors discussed the variation of the conserved functional sites impacting on the transportation of water molecules. The protein was concluded to be a potential drug target in parasites.
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Affiliation(s)
- Zi-Xin Ni
- College of Veterinary Medicine, China Agricultural University, Beijing 100083, P.R. China
| | - Jian-Min Cui
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, P.R. China
| | - Nian-Zhang Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, P.R. China
| | - Bao-Quan Fu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, P.R. China
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28
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Qian W, Yue C, Wang Y, Cao H, Li N, Wang L, Hao X, Wang X, Xiao B, Yang Y. Identification of the invertase gene family (INVs) in tea plant and their expression analysis under abiotic stress. PLANT CELL REPORTS 2016; 35:2269-2283. [PMID: 27538912 DOI: 10.1007/s00299-016-2033-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 07/25/2016] [Indexed: 05/02/2023]
Abstract
Fourteen invertase genes were identified in the tea plant, all of which were shown to participate in regulating growth and development, as well as in responding to various abiotic stresses. Invertase (INV) can hydrolyze sucrose into glucose and fructose, which plays a principal role in regulating plant growth and development as well as the plants response to various abiotic and biotic stresses. However, currently, there is a lack of reported information, regarding the roles of INVs in either tea plant development or in the tea plants response to various stresses. In this study, 14 INV genes were identified from the transcriptome data of the tea plant (Camellia sinensis (L.) O. Kuntze), and named CsINV1-5 and CsINV7-15. Based on the results of a Blastx search and phylogenetic analysis, the CsINV genes could be clustered into 6 acid invertase (AI) genes and 8 alkaline/neutral invertase (A/N-Inv) genes. The results of tissue-specific expression analysis showed that the transcripts of all the identified CsINV genes are detectable in various tissues. Under various abiotic stress conditions, the expression patterns of the 14 CsINV genes were diverse in both the leaves and roots, and some of them were shown to be significantly expressed. Overall, we hypothesize that the identified CsINV genes all participate in regulating growth and development in the tea plant, and most likely through different signaling pathways that regulate the carbohydrate allocation and the ratio of hexose and sucrose for improving the resistance of the leaves and the roots of the tea plant to various abiotic stresses.
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Affiliation(s)
- Wenjun Qian
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Chuan Yue
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
- Department of Tea Science, College of Horticulture, Fujian A&F University, Fuzhou, 350002, China
| | - Yuchun Wang
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Hongli Cao
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
- Department of Tea Science, College of Horticulture, Fujian A&F University, Fuzhou, 350002, China
| | - Nana Li
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Lu Wang
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Xinyuan Hao
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Xinchao Wang
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China.
| | - Bin Xiao
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Yajun Yang
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China.
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29
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Li R, Wang J, Li S, Zhang L, Qi C, Weeda S, Zhao B, Ren S, Guo YD. Plasma Membrane Intrinsic Proteins SlPIP2;1, SlPIP2;7 and SlPIP2;5 Conferring Enhanced Drought Stress Tolerance in Tomato. Sci Rep 2016; 6:31814. [PMID: 27545827 PMCID: PMC4992886 DOI: 10.1038/srep31814] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 07/26/2016] [Indexed: 11/30/2022] Open
Abstract
The function of aquaporin (AQP) protein in transporting water is crucial for plants to survive in drought stress. With 47 homologues in tomato (Solanum lycopersicum) were reported, but the individual and integrated functions of aquaporins involved in drought response remains unclear. Here, three plasma membrane intrinsic protein genes, SlPIP2;1, SlPIP2;7 and SlPIP2;5, were identified as candidate aquaporins genes because of highly expressed in tomato roots. Assay on expression in Xenopus oocytes demonstrated that SlPIP2s protein displayed water channel activity and facilitated water transport into the cells. With real-time PCR and in situ hybridization analysis, SlPIP2s were considered to be involved in response to drought treatment. To test its function, transgenic Arabidopsis and tomato lines overexpressing SlPIP2;1, SlPIP2;7 or SlPIP2;5 were generated. Compared with wild type, the over-expression of SlPIP2;1, SlPIP2;7 or SlPIP2;5 transgenic Arabidopsis and tomato plants all showed significantly higher hydraulic conductivity levels and survival rates under both normal and drought conditions. Taken together, this study concludes that aquaporins (SlPIP2;1, SlPIP2;7 and SlPIP2;5) contribute substantially to root water uptake in tomato plants through improving plant water content and maintaining osmotic balance.
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Affiliation(s)
- Ren Li
- College of Horticulture, China Agricultural University, 100193 Beijing, China
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 100081 Beijing, China
| | - Jinfang Wang
- College of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Shuangtao Li
- College of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Lei Zhang
- College of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Chuandong Qi
- College of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Sarah Weeda
- School of Agriculture, Virginia State University, PO Box 9061, Petersburg, VA 23806, USA
| | - Bing Zhao
- College of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Shuxin Ren
- School of Agriculture, Virginia State University, PO Box 9061, Petersburg, VA 23806, USA
| | - Yang-Dong Guo
- College of Horticulture, China Agricultural University, 100193 Beijing, China
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30
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Lopez D, Amira MB, Brown D, Muries B, Brunel-Michac N, Bourgerie S, Porcheron B, Lemoine R, Chrestin H, Mollison E, Di Cola A, Frigerio L, Julien JL, Gousset-Dupont A, Fumanal B, Label P, Pujade-Renaud V, Auguin D, Venisse JS. The Hevea brasiliensis XIP aquaporin subfamily: genomic, structural and functional characterizations with relevance to intensive latex harvesting. PLANT MOLECULAR BIOLOGY 2016; 91:375-96. [PMID: 27068521 DOI: 10.1007/s11103-016-0462-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 02/25/2016] [Indexed: 05/22/2023]
Abstract
X-Intrinsic Proteins (XIP) were recently identified in a narrow range of plants as a full clade within the aquaporins. These channels reportedly facilitate the transport of a wide range of hydrophobic solutes. The functional roles of XIP in planta remain poorly identified. In this study, we found three XIP genes (HbXIP1;1, HbXIP2;1 and HbXIP3;1) in the Hevea brasiliensis genome. Comprehensive bioinformatics, biochemical and structural analyses were used to acquire a better understanding of this AQP subfamily. Phylogenetic analysis revealed that HbXIPs clustered into two major groups, each distributed in a specific lineage of the order Malpighiales. Tissue-specific expression profiles showed that only HbXIP2;1 was expressed in all the vegetative tissues tested (leaves, stem, bark, xylem and latex), suggesting that HbXIP2;1 could take part in a wide range of cellular processes. This is particularly relevant to the rubber-producing laticiferous system, where this isoform was found to be up-regulated during tapping and ethylene treatments. Furthermore, the XIP transcriptional pattern is significantly correlated to latex production level. Structural comparison with SoPIP2;1 from Spinacia oleracea species provides new insights into the possible role of structural checkpoints by which HbXIP2;1 ensures glycerol transfer across the membrane. From these results, we discuss the physiological involvement of glycerol and HbXIP2;1 in water homeostasis and carbon stream of challenged laticifers. The characterization of HbXIP2;1 during rubber tree tapping lends new insights into molecular and physiological response processes of laticifer metabolism in the context of latex exploitation.
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Affiliation(s)
- David Lopez
- Clermont Université, Université Blaise Pascal, INRA, UMR 547 PIAF, BP 10448, 63000, Clermont-Ferrand, France
| | - Maroua Ben Amira
- Clermont Université, Université Blaise Pascal, INRA, UMR 547 PIAF, BP 10448, 63000, Clermont-Ferrand, France
| | - Daniel Brown
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
- Biotechnology Unit, Tun Abdul Razak Research Centre, Brickendonbury, Hertford, UK
| | - Beatriz Muries
- Institut des Sciences de la Vie, Université catholique de Louvain, 1348, Louvain-la-Neuve, Belgium
| | - Nicole Brunel-Michac
- Clermont Université, Université Blaise Pascal, INRA, UMR 547 PIAF, BP 10448, 63000, Clermont-Ferrand, France
| | - Sylvain Bourgerie
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, Université d'Orléans, UPRES EA 1207, INRA-USC1328, 45067, Orléans, France
| | - Benoit Porcheron
- Ecologie, Biologie des Interactions, Equipe SEVE, UMR 7267 CNRS/Université de Poitiers, Bâtiment B31, TSA 51106, 86073, Poitiers Cedex 9, France
| | - Remi Lemoine
- Ecologie, Biologie des Interactions, Equipe SEVE, UMR 7267 CNRS/Université de Poitiers, Bâtiment B31, TSA 51106, 86073, Poitiers Cedex 9, France
| | - Hervé Chrestin
- Institut de Recherche pour le Développement, UR060/CEFE-CNRS, 1029 route de Mende, 34032, Montpellier, France
| | - Ewan Mollison
- Biotechnology Unit, Tun Abdul Razak Research Centre, Brickendonbury, Hertford, UK
| | - Alessandra Di Cola
- Biotechnology Unit, Tun Abdul Razak Research Centre, Brickendonbury, Hertford, UK
| | - Lorenzo Frigerio
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | - Jean-Louis Julien
- Clermont Université, Université Blaise Pascal, INRA, UMR 547 PIAF, BP 10448, 63000, Clermont-Ferrand, France
| | - Aurélie Gousset-Dupont
- Clermont Université, Université Blaise Pascal, INRA, UMR 547 PIAF, BP 10448, 63000, Clermont-Ferrand, France
| | - Boris Fumanal
- Clermont Université, Université Blaise Pascal, INRA, UMR 547 PIAF, BP 10448, 63000, Clermont-Ferrand, France
| | - Philippe Label
- Clermont Université, Université Blaise Pascal, INRA, UMR 547 PIAF, BP 10448, 63000, Clermont-Ferrand, France
| | - Valérie Pujade-Renaud
- Clermont Université, Université Blaise Pascal, INRA, UMR 547 PIAF, BP 10448, 63000, Clermont-Ferrand, France
- CIRAD, UMR AGAP, 63000, Clermont-Ferrand, France
| | - Daniel Auguin
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, Université d'Orléans, UPRES EA 1207, INRA-USC1328, 45067, Orléans, France.
| | - Jean-Stéphane Venisse
- Clermont Université, Université Blaise Pascal, INRA, UMR 547 PIAF, BP 10448, 63000, Clermont-Ferrand, France.
- Campus Universitaire des Cézeaux, 8 Avenue Blaise Pascal, TSA 60026, CS 60026, 63178, Aubiere Cedex, France.
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He F, Zhang H, Tang M. Aquaporin gene expression and physiological responses of Robinia pseudoacacia L. to the mycorrhizal fungus Rhizophagus irregularis and drought stress. MYCORRHIZA 2016; 26:311-23. [PMID: 26590998 DOI: 10.1007/s00572-015-0670-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 11/13/2015] [Indexed: 05/09/2023]
Abstract
The influence of arbuscular mycorrhiza (AM) and drought stress on aquaporin (AQP) gene expression, water status, and photosynthesis was investigated in black locust (Robinia pseudoacacia L.). Seedlings were grown in potted soil inoculated without or with the AM fungus Rhizophagus irregularis, under well-watered and drought stress conditions. Six full-length AQP complementary DNAs (cDNAs) were isolated from Robinia pseudoacacia, named RpTIP1;1, RpTIP1;3, RpTIP2;1, RpPIP1;1, RpPIP1;3, and RpPIP2;1. A phylogenetic analysis of deduced amino acid sequences demonstrated that putative proteins coded by these RpAQP genes belong to the water channel protein family. Expression analysis revealed higher RpPIP expression in roots while RpTIP expression was higher in leaves, except for RpTIP1;3. AM symbiosis regulated host plant AQPs, and the expression of RpAQP genes in mycorrhizal plants depended on soil water condition and plant tissue. Positive effects were observed for plant physiological parameters in AM plants, which had higher dry mass and lower water saturation deficit and electrolyte leakage than non-AM plants. Rhizophagus irregularis inoculation also slightly increased leaf net photosynthetic rate and stomatal conductance under well-watered and drought stress conditions. These findings suggest that AM symbiosis can enhance the drought tolerance in Robinia pseudoacacia plants by regulating the expression of RpAQP genes, and by improving plant biomass, tissue water status, and leaf photosynthesis in host seedlings.
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Affiliation(s)
- Fei He
- College of Forestry, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Haoqiang Zhang
- College of Forestry, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Ming Tang
- College of Forestry, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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32
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Cao H, Wang L, Yue C, Hao X, Wang X, Yang Y. Isolation and expression analysis of 18 CsbZIP genes implicated in abiotic stress responses in the tea plant (Camellia sinensis). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2015; 97:432-442. [PMID: 26555901 DOI: 10.1016/j.plaphy.2015.10.030] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 10/24/2015] [Accepted: 10/24/2015] [Indexed: 06/05/2023]
Abstract
Basic leucine zipper (bZIP) transcription factors (TFs) play essential roles in regulating stress processes in plants. Despite the economic importance of this woody crop, there is little information about bZIP TFs in tea plants. In this study, 18 bZIP genes were isolated from the tea plant (Camellia sinensis) and named sequentially from CsbZIP1 to CsbZIP18. According to the phylogenetic classification as in Arabidopsis, the CsbZIP genes spanned ten subgroups (Group A, B, C, D, E, F, H, I, S and K) of bZIP TFs. When analyzed for organ specific expression, all CsbZIP genes were found to be ubiquitously expressed in roots, stems, leaves and flowers. Expression analysis of CsbZIP genes in response to four abiotic stresses showed that in leaves, 9, 9, 15 and 11 CsbZIPs have 2-fold greater variation in transcript abundance under cold, exogenous ABA, high salinity and dehydration conditions, respectively. In roots, 5, 12, 14 and 11 CsbZIPs were differentially expressed under conditions of cold, exogenous ABA, high salinity and dehydration stresses. Moreover, CsbZIP genes in Groups F, H, S and K exhibited several folds up-and/or down-regulation against the above four stresses. Notably, CsbZIP18 of group K showed significant up-regulation in response to these same stresses, suggesting a vital functional role in stress response. Together, these findings increase our knowledge of bZIP TFs in the tea plant and suggest the significance of CsbZIP genes in plant abiotic responses.
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Affiliation(s)
- Hongli Cao
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China.
| | - Lu Wang
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; National Center for Tea Improvement, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China.
| | - Chuan Yue
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China.
| | - Xinyuan Hao
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; National Center for Tea Improvement, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China.
| | - Xinchao Wang
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; National Center for Tea Improvement, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China.
| | - Yajun Yang
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; National Center for Tea Improvement, Hangzhou 310008, China; Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China.
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33
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Miniussi M, Del Terra L, Savi T, Pallavicini A, Nardini A. Aquaporins in Coffea arabica L.: Identification, expression, and impacts on plant water relations and hydraulics. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2015; 95:92-102. [PMID: 26241904 DOI: 10.1016/j.plaphy.2015.07.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 07/21/2015] [Indexed: 05/02/2023]
Abstract
Plant aquaporins (AQPs) are involved in the transport of water and other small solutes across cell membranes, and thus play major roles in the regulation of plant water balance, as well as in growth regulation and response to abiotic stress factors. Limited information is currently available about the presence and role of AQPs in Coffea arabica L., despite the economic importance of the species and its vulnerability to drought stress. We identified candidate AQP genes by screening a proprietary C. arabica transcriptome database, resulting in the identification of nine putative aquaporins. A phylogenetic analysis based on previously characterized AQPs from Arabidopsis thaliana and Solanum tuberosum allowed to assign the putative coffee AQP sequences to the Tonoplast (TIP) and Plasma membrane (PIP) subfamilies. The possible functional role of coffee AQPs was explored by measuring hydraulic conductance and aquaporin gene expression on leaf and root tissues of two-year-old plants (C. arabica cv. Pacamara) subjected to different experimental conditions. In a first experiment, we tested plants for root and leaf hydraulic conductance both before dawn and at mid-day, to check the eventual impact of light on AQP activity and plant hydraulics. In a second experiment, we measured plant hydraulic responses to different water stress levels as eventually affected by changes in AQPs expression levels. Our results shed light on the possible roles of AQPs in the regulation of C. arabica hydraulics and water balance, opening promising research lines to improve the sustainability of coffee cultivation under global climate change scenarios.
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Affiliation(s)
- Matilda Miniussi
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 10, 34127 Trieste, Italy
| | | | - Tadeja Savi
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 10, 34127 Trieste, Italy
| | - Alberto Pallavicini
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 10, 34127 Trieste, Italy.
| | - Andrea Nardini
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 10, 34127 Trieste, Italy.
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34
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Yue C, Cao HL, Wang L, Zhou YH, Huang YT, Hao XY, Wang YC, Wang B, Yang YJ, Wang XC. Effects of cold acclimation on sugar metabolism and sugar-related gene expression in tea plant during the winter season. PLANT MOLECULAR BIOLOGY 2015; 88:591-608. [PMID: 26216393 DOI: 10.1007/s11103-015-0345-7] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 07/13/2015] [Indexed: 05/20/2023]
Abstract
Sugar plays an essential role in plant cold acclimation (CA), but the interaction between CA and sugar remains unclear in tea plants. In this study, during the whole winter season, we investigated the variations of sugar contents and the expression of a large number of sugar-related genes in tea leaves. Results indicated that cold tolerance of tea plant was improved with the development of CA during early winter season. At this stage, starch was dramatically degraded, whereas the content of total sugars and several specific sugars including sucrose, glucose and fructose were constantly elevated. Beyond the CA stage, the content of starch was maintained at a low level during winter hardiness (WH) period and then was elevated during de-acclimation (DC) period. Conversely, the content of sugar reached a peak at WH stage followed by a decrease during DC stage. Moreover, gene expression results showed that, during CA period, sugar metabolism-related genes exhibited different expression pattern, in which beta-amylase gene (CsBAM), invertase gene (CsINV5) and raffinose synthase gene (CsRS2) engaged in starch, sucrose and raffinose metabolism respectively were solidly up-regulated; the expressions of sugar transporters were stimulated in general except the down-regulations of CsSWEET2, 3, 16, CsERD6.7 and CsINT2; interestingly, the sugar-signaling related CsHXK3 and CsHXK2 had opposite expression patterns at the early stage of CA. These provided comprehensive insight into the effects of CA on carbohydrates indicating that sugar accumulation contributes to tea plant cold tolerance during winter season, and a simply model of sugar regulation in response to cold stimuli is proposed.
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Affiliation(s)
- Chuan Yue
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou, 310008, People's Republic of China,
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Jarzyniak KM, Jasiński M. Membrane transporters and drought resistance - a complex issue. FRONTIERS IN PLANT SCIENCE 2014; 5:687. [PMID: 25538721 PMCID: PMC4255493 DOI: 10.3389/fpls.2014.00687] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 11/18/2014] [Indexed: 05/18/2023]
Abstract
Land plants have evolved complex adaptation strategies to survive changes in water status in the environment. Understanding the molecular nature of such adaptive changes allows the development of rapid innovations to improve crop performance. Plant membrane transport systems play a significant role when adjusting to water scarcity. Here we put proteins participating in transmembrane allocations of various molecules in the context of stomatal, cuticular, and root responses, representing a part of the drought resistance strategy. Their role in the transport of signaling molecules, ions or osmolytes is summarized and the challenge of the forthcoming research, resulting from the recent discoveries, is highlighted.
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Affiliation(s)
- Karolina M. Jarzyniak
- Laboratory of Plant Molecular Physiology, Department of Natural Products Biochemistry, Institute of Bioorganic Chemistry Polish Academy of SciencesPoznań, Poland
- Laboratory of Molecular Biology, Department of Biochemistry and Biotechnology, University of Life SciencesPoznań, Poland
| | - Michał Jasiński
- Laboratory of Plant Molecular Physiology, Department of Natural Products Biochemistry, Institute of Bioorganic Chemistry Polish Academy of SciencesPoznań, Poland
- Laboratory of Molecular Biology, Department of Biochemistry and Biotechnology, University of Life SciencesPoznań, Poland
- *Correspondence: Michał Jasiński, Laboratory of Plant Molecular Physiology, Department of Natural Products Biochemistry, Institute of Bioorganic Chemistry Polish Academy of Sciences, Noskowskiego 12/14, Poznań 61-704, Poland e-mail:
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