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Peng Z, Rehman A, Li X, Jiang X, Tian C, Wang X, Li H, Wang Z, He S, Du X. Comprehensive Evaluation and Transcriptome Analysis Reveal the Salt Tolerance Mechanism in Semi-Wild Cotton ( Gossypium purpurascens). Int J Mol Sci 2023; 24:12853. [PMID: 37629034 PMCID: PMC10454576 DOI: 10.3390/ijms241612853] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/03/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
Elevated salinity significantly threatens cotton growth, particularly during the germination and seedling stages. The utilization of primitive species of Gossypium hirsutum, specifically Gossypium purpurascens, has the potential to facilitate the restoration of genetic diversity that has been depleted due to selective breeding in modern cultivars. This investigation evaluated 45 G. purpurascens varieties and a salt-tolerant cotton variety based on 34 morphological, physiological, and biochemical indicators and comprehensive salt tolerance index values. This study effectively identified a total of 19 salt-tolerant and two salt-resistant varieties. Furthermore, transcriptome sequencing of a salt-tolerant genotype (Nayanmian-2; NY2) and a salt-sensitive genotype (Sanshagaopao-2; GP2) revealed 2776, 6680, 4660, and 4174 differentially expressed genes (DEGs) under 0.5, 3, 12, and 24 h of salt stress. Gene ontology enrichment analysis indicated that the DEGs exhibited significant enrichment in biological processes like metabolic (GO:0008152) and cellular (GO:0009987) processes. MAPK signaling, plant-pathogen interaction, starch and sucrose metabolism, plant hormone signaling, photosynthesis, and fatty acid metabolism were identified as key KEGG pathways involved in salinity stress. Among the DEGs, including NAC, MYB, WRKY, ERF, bHLH, and bZIP, transcription factors, receptor-like kinases, and carbohydrate-active enzymes were crucial in salinity tolerance. Weighted gene co-expression network analysis (WGCNA) unveiled associations of salt-tolerant genotypes with flavonoid metabolism, carbon metabolism, and MAPK signaling pathways. Identifying nine hub genes (MYB4, MYB105, MYB36, bZIP19, bZIP43, FRS2 SMARCAL1, BBX21, F-box) across various intervals offered insights into the transcriptional regulation mechanism of salt tolerance in G. purpurascens. This study lays the groundwork for understanding the important pathways and gene networks in response to salt stress, thereby providing a foundation for enhancing salt tolerance in upland cotton.
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Affiliation(s)
- Zhen Peng
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (Z.P.); (A.R.); (X.L.); (X.J.); (C.T.); (X.W.); (H.L.)
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China;
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya 572025, China
| | - Abdul Rehman
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (Z.P.); (A.R.); (X.L.); (X.J.); (C.T.); (X.W.); (H.L.)
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China;
| | - Xiawen Li
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (Z.P.); (A.R.); (X.L.); (X.J.); (C.T.); (X.W.); (H.L.)
| | - Xuran Jiang
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (Z.P.); (A.R.); (X.L.); (X.J.); (C.T.); (X.W.); (H.L.)
| | - Chunyan Tian
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (Z.P.); (A.R.); (X.L.); (X.J.); (C.T.); (X.W.); (H.L.)
| | - Xiaoyang Wang
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (Z.P.); (A.R.); (X.L.); (X.J.); (C.T.); (X.W.); (H.L.)
| | - Hongge Li
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (Z.P.); (A.R.); (X.L.); (X.J.); (C.T.); (X.W.); (H.L.)
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China;
| | - Zhenzhen Wang
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China;
| | - Shoupu He
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (Z.P.); (A.R.); (X.L.); (X.J.); (C.T.); (X.W.); (H.L.)
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China;
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya 572025, China
| | - Xiongming Du
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (Z.P.); (A.R.); (X.L.); (X.J.); (C.T.); (X.W.); (H.L.)
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China;
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya 572025, China
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Yang Z, Mu Y, Wang Y, He F, Shi L, Fang Z, Zhang J, Zhang Q, Geng G, Zhang S. Characterization of a Novel TtLEA2 Gene From Tritipyrum and Its Transformation in Wheat to Enhance Salt Tolerance. FRONTIERS IN PLANT SCIENCE 2022; 13:830848. [PMID: 35444677 PMCID: PMC9014267 DOI: 10.3389/fpls.2022.830848] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 02/11/2022] [Indexed: 05/12/2023]
Abstract
Late embryogenesis-abundant (LEA) proteins are critical in helping plants cope with salt stress. "Y1805" is a salt-tolerant Tritipyrum. We identified a "Y1805"-specific LEA gene that was expressed highly and sensitively under salt stress using transcriptome analysis. The novel group 2 LEA gene (TtLEA2-1) was cloned from "Y1805." TtLEA2-1 contained a 453 bp open reading frame encoding an 151-amino-acid protein that showed maximum sequence identity (77.00%) with Thinopyrum elongatum by phylogenetic analysis. It was mainly found to be expressed highly in the roots by qRT-PCR analysis and was located in the whole cell. Forty-eight candidate proteins believed to interact with TtLEA2-1 were confirmed by yeast two-hybrid analysis. These interacting proteins were mainly enriched in "environmental information processing," "glycan biosynthesis and metabolism," and "carbohydrate metabolism." Protein-protein interaction analysis indicated that the translation-related 40S ribosomal protein SA was the central node. An efficient wheat transformation system has been established. A coleoptile length of 2 cm, an Agrobacteria cell density of 0.55-0.60 OD600, and 15 KPa vacuum pressure were ideal for common wheat transformation, with an efficiency of up to 43.15%. Overexpression of TaLEA2-1 in wheat "1718" led to greater height, stronger roots, and higher catalase activity than in wild type seedlings. TaLEA2-1 conferred enhanced salt tolerance in transgenic wheat and may be a valuable gene for genetic modification in crops.
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Affiliation(s)
- Zhifen Yang
- College of Agriculture, Guizhou University, Guiyang, China
| | - Yuanhang Mu
- College of Agriculture, Guizhou University, Guiyang, China
| | - Yiqin Wang
- College of Agriculture, Guizhou University, Guiyang, China
| | - Fang He
- College of Agriculture, Guizhou University, Guiyang, China
- Guizhou Subcenter of National Wheat Improvement Center, Guiyang, China
| | - Luxi Shi
- College of Agriculture, Guizhou University, Guiyang, China
| | - Zhongming Fang
- College of Agriculture, Guizhou University, Guiyang, China
| | - Jun Zhang
- College of Agriculture, Guizhou University, Guiyang, China
| | - Qingqin Zhang
- College of Agriculture, Guizhou University, Guiyang, China
| | - Guangdong Geng
- College of Agriculture, Guizhou University, Guiyang, China
- *Correspondence: Guangdong Geng,
| | - Suqin Zhang
- College of Agriculture, Guizhou University, Guiyang, China
- Guizhou Subcenter of National Wheat Improvement Center, Guiyang, China
- Suqin Zhang,
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Athar HUR, Zulfiqar F, Moosa A, Ashraf M, Zafar ZU, Zhang L, Ahmed N, Kalaji HM, Nafees M, Hossain MA, Islam MS, El Sabagh A, Siddique KHM. Salt stress proteins in plants: An overview. FRONTIERS IN PLANT SCIENCE 2022; 13:999058. [PMID: 36589054 PMCID: PMC9800898 DOI: 10.3389/fpls.2022.999058] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 11/23/2022] [Indexed: 05/04/2023]
Abstract
Salinity stress is considered the most devastating abiotic stress for crop productivity. Accumulating different types of soluble proteins has evolved as a vital strategy that plays a central regulatory role in the growth and development of plants subjected to salt stress. In the last two decades, efforts have been undertaken to critically examine the genome structure and functions of the transcriptome in plants subjected to salinity stress. Although genomics and transcriptomics studies indicate physiological and biochemical alterations in plants, it do not reflect changes in the amount and type of proteins corresponding to gene expression at the transcriptome level. In addition, proteins are a more reliable determinant of salt tolerance than simple gene expression as they play major roles in shaping physiological traits in salt-tolerant phenotypes. However, little information is available on salt stress-responsive proteins and their possible modes of action in conferring salinity stress tolerance. In addition, a complete proteome profile under normal or stress conditions has not been established yet for any model plant species. Similarly, a complete set of low abundant and key stress regulatory proteins in plants has not been identified. Furthermore, insufficient information on post-translational modifications in salt stress regulatory proteins is available. Therefore, in recent past, studies focused on exploring changes in protein expression under salt stress, which will complement genomic, transcriptomic, and physiological studies in understanding mechanism of salt tolerance in plants. This review focused on recent studies on proteome profiling in plants subjected to salinity stress, and provide synthesis of updated literature about how salinity regulates various salt stress proteins involved in the plant salt tolerance mechanism. This review also highlights the recent reports on regulation of salt stress proteins using transgenic approaches with enhanced salt stress tolerance in crops.
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Affiliation(s)
- Habib-ur-Rehman Athar
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
- College of Life Sciences, Northwest A&F University, Yangling, China
| | - Faisal Zulfiqar
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
- *Correspondence: Faisal Zulfiqar, ; Kadambot H. M. Siddique,
| | - Anam Moosa
- Department of Plant Pathology, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Ashraf
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
| | - Zafar Ullah Zafar
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
| | - Lixin Zhang
- College of Life Sciences, Northwest A&F University, Yangling, China
| | - Nadeem Ahmed
- College of Life Sciences, Northwest A&F University, Yangling, China
- Department of Botany, Mohy-ud-Din Islamic University, Nerian Sharif, Pakistan
| | - Hazem M. Kalaji
- Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences SGGW, Warsaw, Poland
| | - Muhammad Nafees
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Mohammad Anwar Hossain
- Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Mohammad Sohidul Islam
- Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh
| | - Ayman El Sabagh
- Faculty of Agriculture, Department of Field Crops, Siirt University, Siirt, Türkiye
- Agronomy Department, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Kadambot H. M. Siddique
- The UWA Institute of Agriculture, The University of Western Australia, Petrth WA, Australia
- *Correspondence: Faisal Zulfiqar, ; Kadambot H. M. Siddique,
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Lv A, Su L, Wen W, Fan N, Zhou P, An Y. Analysis of the Function of the Alfalfa Mslea-D34 Gene in Abiotic Stress Responses and Flowering Time. PLANT & CELL PHYSIOLOGY 2021; 62:28-42. [PMID: 32976554 DOI: 10.1093/pcp/pcaa121] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 09/10/2020] [Indexed: 05/14/2023]
Abstract
A novel late embryogenesis abundant (LEA) gene, MsLEA-D34, was cloned from alfalfa (Medicago sativa L.). Its function and gene regulatory pathways were studied via overexpression (OE) and RNA interference (RNAi) of the gene in Arabidopsis and in hairy roots of alfalfa, as well as via analyzing key genes related to MsLEA-D34 during developmental phases in alfalfa. The results showed that MsLEA-D34 was a typical intrinsically disordered protein with a high capability for protein protection. Overexpression of MsLEA-D34 increased plant tolerance to osmotic and salt stresses, and caused Arabidopsis early flowering under drought and well-watered conditions. Overexpressing MsLEA-D34 induced up-regulation of FLOWERING LOCUS T (FT) and GIGANTEA (GI) at the flowering phase of Arabidopsis and hairy roots of alfalfa, but only FT was down-regulated in MsLEA-D34-RNAi lines. A positive effect of MsLEA-D34 on FT accumulation was demonstrated in alfalfa hairy roots. An ABA-responsive element (ABRE)-binding transcription factor (MsABF2), a novel transcription factor cloned from alfalfa, directly bound to the RY element in the MsLEA-D34 promoter and activated MsLEA-D34 expression. The above results indicate that MsLEA-D34 can regulate abiotic stress response in plants and influence flowering time of Arabidopsis.
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Affiliation(s)
- Aimin Lv
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Liantai Su
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wuwu Wen
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Nana Fan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Peng Zhou
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuan An
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
- Key Laboratory of Urban Agriculture, Ministry of Agriculture, Shanghai 201101, China
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5
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He C, Liu X, Teixeira da Silva JA, Wang H, Peng T, Zhang M, Si C, Yu Z, Tan J, Zhang J, Luo J, Duan J. Characterization of LEA genes in Dendrobium officinale and one Gene in induction of callus. JOURNAL OF PLANT PHYSIOLOGY 2021; 258-259:153356. [PMID: 33423816 DOI: 10.1016/j.jplph.2020.153356] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
Late embryogenesis abundant (LEA) proteins are widely involved in plant stress responsive, while their involvement in callus formation is largest unknown. In this study, we identified and conducted expression analysis of the LEA genes from Phalaenopsis equestris and Dendrobium officinale, and characterized a LEA gene from D. officinale. A total 57 and 59 LEA genes were identified in P. equestris and D. officinale, respectively. A phylogenetic analysis showed that AtM, LEA_5 and Dehydrin groups were absent in both orchids. LEA_1 group genes were strongly expressed in seeds, significantly down-regulated in flowers, and absent in vegetative organs (leaves, stems and roots) in both orchids. Moreover, LEA_1 and LEA_4 group genes from D. officinale were abundant in the protocorm-like body stage and were dramatically up-regulated in response to abscisic acid and salinity stress. A LEA_1 gene (DoLEA43) was selected for further functional analysis. DoLEA43 protein was localized in the cytoplasm and nucleus, and its promoter contained a WUN-motif that was modulated by wounding. Overexpression of DoLEA43 in Arabidopsis enhanced callus induction, causing changes to callus formation-related genes such as WIND1. Our results indicate the involvement of LEA genes in the induction of callus, which provide insights into plant regeneration.
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Affiliation(s)
- Chunmei He
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Xuncheng Liu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Jaime A Teixeira da Silva
- Independent researcher, P. O. Box 7, Miki-cho post office, Ikenobe 3011-2, Kagawa-ken, 761-0799, Japan
| | - Haobin Wang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Tao Peng
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Mingze Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Can Si
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhenming Yu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Jianwen Tan
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Jianxia Zhang
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Jianping Luo
- School of Food Engineering and Biotechnology, Hefei University of Technology, Hefei, 230009, China
| | - Jun Duan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
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Zhang P, Wang R, Yang X, Ju Q, Li W, Lü S, Tran LSP, Xu J. The R2R3-MYB transcription factor AtMYB49 modulates salt tolerance in Arabidopsis by modulating the cuticle formation and antioxidant defence. PLANT, CELL & ENVIRONMENT 2020; 43:1925-1943. [PMID: 32406163 DOI: 10.1111/pce.13784] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/06/2020] [Accepted: 05/06/2020] [Indexed: 05/04/2023]
Abstract
Salt stress activates defence responses in plants, including changes in leaf surface structure. Here, we showed that the transcriptional activation of cutin deposition and antioxidant defence by the R2R3-type MYB transcription factor AtMYB49 contributed to salt tolerance in Arabidopsis thaliana. Characterization of loss-of-function myb49 mutants, and chimeric AtMYB49-SRDX-overexpressing SRDX49 transcriptional repressor and AtMYB49-overexpressing (OX49) overexpressor plants demonstrated a positive role of AtMYB49 in salt tolerance. Transcriptome analysis revealed that many genes belonging to the category "cutin, suberin and wax biosyntheses" were markedly up-regulated and down-regulated in OX49 and SRDX49 plants, respectively, under normal and/or salt stress conditions. Some of these differentially expressed genes, including MYB41, ASFT, FACT and CYP86B1, were also shown to be the direct targets of AtMYB49 and activated by AtMYB49. Biochemical analysis indicated that AtMYB49 modulated cutin deposition in the leaves. Importantly, cuticular transpiration, chlorophyll leaching and toluidine blue-staining assays revealed a link between increased AtMYB49-mediated cutin deposition in leaves and enhanced salt tolerance. Additionally, increased AtMYB49 expression elevated Ca2+ level in leaves and improved antioxidant capacity by up-regulating genes encoding peroxidases and late embryogenesis abundant proteins. These results suggest that genetic manipulation of AtMYB49 may provide a novel way to improve salt tolerance in plants.
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Affiliation(s)
- Ping Zhang
- College of Horticulture, Shanxi Agricultural University, Taigu, China
| | - Ruling Wang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, China
| | - Xianpeng Yang
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Qiong Ju
- College of Horticulture, Shanxi Agricultural University, Taigu, China
| | - Weiqiang Li
- Institute of Plant Stress Biology, State Key Laboratory of Cotton Biology, Department of Biology, Henan University, Kaifeng, China
| | - Shiyou Lü
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Lam-Son Phan Tran
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- Stress Adaptation Research Unit, RIKEN Center for Sustainable Resource Science, Tsurumi, Japan
| | - Jin Xu
- College of Horticulture, Shanxi Agricultural University, Taigu, China
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, China
- GanSu Key Laboratory for Utilization of Agricultural Solid Waste Resources, College of Bioengineering and Biotechnology, TianShui Normal University, TianShui, China
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Zhang Y, Shi SH, Li FL, Zhao CZ, Li AQ, Hou L, Xia H, Wang BS, Baltazar JL, Wang XJ, Zhao SZ. Global transcriptome analysis provides new insights in Thellungiella salsuginea stress response. PLANT BIOLOGY (STUTTGART, GERMANY) 2019; 21:796-804. [PMID: 31081576 DOI: 10.1111/plb.13006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 05/08/2019] [Indexed: 05/13/2023]
Abstract
Thellungiella salsuginea is highly tolerant to abiotic stress, while its a close relative Arabidopsis thaliana is sensitive to stress. This characteristic makes T. salsuginea an excellent model for uncovering the mechanisms of abiotic stress tolerance. Abscisic acid (ABA) plays essential roles in plant abiotic and biotic stress tolerance. To test the changes in gene expression of T. salsuginea under ABA treatment, in this study, the transcriptomes of T. salsuginea roots and leaves were compared in response to exogenously application of ABA. The results showed that ABA treatment caused different expression of 2,200 and 3,305 genes in leaves and roots, respectively, compared with the untreated control. In particular, genes encoding transcription factors such as WRKY, MYB, NAC, GATA, ethylene-responsive factors (ERFs), heat stress transcription factors, basic helix-loop-helix, PLATZ and B3 domain-containing family members were enriched. In addition, 49 and 114 differentially expressed genes were identified as ABA-regulated genes, separately in leaves and roots, respectively, which were related to biotic and abiotic stresses. The expression levels of some genes were validated by qRT-PCR. Different responses of genes to ABA treatment were discovered in T. salsuginea and A. thaliana. This transcriptome analysis expands our understanding of the role of ABA in stress tolerance in T. salsuginea. Our study provides a wealth of information for improving stress tolerance in crop plants.
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Affiliation(s)
- Y Zhang
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - S H Shi
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
| | - F L Li
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- Life Science College of Shandong University, Qingdao, China
| | - C Z Zhao
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
| | - A Q Li
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - L Hou
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - H Xia
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
| | - B S Wang
- College of Life Science, Shandong Normal University, Jinan, China
| | - J L Baltazar
- Instituto Tecnologico del Valle de Oaxaca, Oaxaca, Mexico
| | - X J Wang
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
| | - S Z Zhao
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
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8
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Kim JH, Oh TR, Cho SK, Yang SW, Kim WT. Inverse Correlation Between MPSR1 E3 Ubiquitin Ligase and HSP90.1 Balances Cytoplasmic Protein Quality Control. PLANT PHYSIOLOGY 2019; 180:1230-1240. [PMID: 30890661 PMCID: PMC6548273 DOI: 10.1104/pp.18.01582] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/10/2019] [Indexed: 05/04/2023]
Abstract
MISFOLDED PROTEIN SENSING RING1 (MPSR1) is a chaperone-independent E3 ubiquitin ligase that participates in protein quality control by eliminating misfolded proteins in Arabidopsis (Arabidopsis thaliana). Here, we report that in the early stages of proteotoxic stress, cellular levels of MPSR1 increased immediately, whereas levels of HEAT SHOCK PROTEIN90.1 (AtHSP90.1) were unaltered despite massively upregulated transcription. At this stage, the gene-silencing pathway mediated by microRNA 414 (miR414) suppressed AtHSP90.1 translation. By contrast, under prolonged stress, AtHSP90.1 was not suppressed, and instead competed with MPSR1 to act on misfolded proteins, promoting the destruction of MPSR1. Deficiency or excess of MPSR1 significantly abolished or intensified the suppression of AtHSP90.1, respectively. Similar to the MPSR1-overexpressing transgenic plants, the miR414-overexpressing plants showed an increased tolerance to proteotoxic stress as compared to the wild-type plants. Although the functional relationship between MPSR1 and miR414 remains unclear, both MPSR1 and miR414 demonstrated negative modulation of the expression of AtHSP90.1. The inverse correlation between MPSR1 and AtHSP90.1 via miR414 may adjust the set-point of the HSP90-mediated protein quality control process in response to increasing stress intensity in Arabidopsis.
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Affiliation(s)
- Jong Hum Kim
- Department of Systems Biology, Yonsei University, Seoul 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
| | - Tae Rin Oh
- Department of Systems Biology, Yonsei University, Seoul 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
| | - Seok Keun Cho
- Department of Systems Biology, Yonsei University, Seoul 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
| | - Seong Wook Yang
- Department of Systems Biology, Yonsei University, Seoul 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
- Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Frederiksberg DK-1871, Denmark
| | - Woo Taek Kim
- Department of Systems Biology, Yonsei University, Seoul 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
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9
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Hu T, Liu Y, Zhu S, Qin J, Li W, Zhou N. Overexpression of OsLea14-A improves the tolerance of rice and increases Hg accumulation under diverse stresses. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:10537-10551. [PMID: 30762181 DOI: 10.1007/s11356-019-04464-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 02/03/2019] [Indexed: 04/16/2023]
Abstract
The group 5 LEA (late embryogenesis abundant) proteins are an atypical LEA protein group, which is associated with resistance to multiple stresses. In this study, OsLea14-A gene was isolated from Oryza sativa L., which encodes a 5C LEA protein with 151 amino acids. The qPCR analysis showed that OsLea14-A expressed in all tissues and organs at all times. The expression of OsLea14-A in the panicles of plumping stage were dramatically increased. The heterologous expression of OsLea14-A in Escherichia coli improved its growth performance under salinity, desiccation, high temperature, and freeze-thaw stresses. The purified OsLea14-A protein can protect LDH activity from freeze-thaw-, heat-, and desiccation-induced inactivation. The overexpression of OsLea14-A in rice improved tolerance to dehydration, high salinity, CuSO4, and HgCl2, but excluding K2Cr2O7. The analysis of metal contents showed that the accumulation of OsLea14-A protein in transgenic rice could increase the accumulation of Hg, but could not increase the accumulation of Na, Cr, and Cu after HgCl2, NaCl, K2Cr2O7, and CuSO4 treatment, respectively. These results suggested that OsLea14-A conferred multiple stress tolerance and Hg accumulation, which made it a possible gene in genetic improvement for plants to acclimatize itself to multiple stresses and remediate Hg-contaminated soil.
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Affiliation(s)
- Tingzhang Hu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, No. 174, Shazheng Street, Shapingba District, Chongqing, 400030, People's Republic of China.
| | - Yuanli Liu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, No. 174, Shazheng Street, Shapingba District, Chongqing, 400030, People's Republic of China
| | - Shanshan Zhu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, No. 174, Shazheng Street, Shapingba District, Chongqing, 400030, People's Republic of China
| | - Juan Qin
- College of Food and Biological Engineering, Chongqing Three Gorges University, Chongqing, 404120, China
| | - Wenping Li
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, No. 174, Shazheng Street, Shapingba District, Chongqing, 400030, People's Republic of China
| | - Nong Zhou
- College of Food and Biological Engineering, Chongqing Three Gorges University, Chongqing, 404120, China
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10
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Kaundal A, Sandhu D, Duenas M, Ferreira JFS. Expression of the high-affinity K+ transporter 1 (PpHKT1) gene from almond rootstock 'Nemaguard' improved salt tolerance of transgenic Arabidopsis. PLoS One 2019; 14:e0214473. [PMID: 30913281 PMCID: PMC6435114 DOI: 10.1371/journal.pone.0214473] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 03/13/2019] [Indexed: 11/18/2022] Open
Abstract
Soil salinity affects plant growth and development, which directly impact yield. Plants deploy many mechanisms to cope with, or mitigate, salt stress. One of such mechanism is to control movement of ions from root to shoot by regulating the loading of Na+ in the transpiration stream. The high-affinity K+ transporter 1 (HKT1) is known to play a role in the removal of Na+ from the xylem and bring it back to the root. As almond is a salt-sensitive crop, the rootstock plays an important role in successful almond cultivation in salt-affected regions. We currently lack knowledge on the molecular mechanisms involved in salt tolerance of almond rootstocks. In this study, we complemented the Arabidopsis athkt1 knockout mutant with HKT1 ortholog (PpHKT1) from the almond rootstock ‘Nemaguard’. Arabidopsis transgenic lines that were generated in athkt1 background with the constitutive promoter (PpHKT1OE2.2) and the native promoter (PpHKT1NP6) were subjected to different salt treatments. Both transgenic lines survived salt concentrations up to 120 mM NaCl, however, the mutant athkt1 died after 18 days under 120 mM NaCl. At 90 mM NaCl, the dry weight of athkt1 decreased significantly compared to the transgenic lines. Both transgenic lines showed significantly longer lateral roots compared to the athkt1 mutant at 80 mM NaCl treatment. The transgenic lines, PpHKT1OE2.2 and PpHKTNP6 had lower electrolyte leakage and higher relative water content compared to athkt1, suggesting that transgenic plants coped well with increased salt concentration by maintaining the integrity of the membranes. The expression analyses showed that PpHKT1 was induced in PpHKT1OE2.2 and PpHKTNP6 lines under salt treatment, which confirmed that both over-expression and native expression of PpHKT1 in the Arabidopsis mutant can complement salt tolerance function.
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Affiliation(s)
- Amita Kaundal
- USDA-ARS, US Salinity Lab, Riverside, California, United States of America
- College of Agriculture and Applied Sciences, Utah State University, Logan, Utah, United States of America
| | - Devinder Sandhu
- USDA-ARS, US Salinity Lab, Riverside, California, United States of America
- * E-mail:
| | - Marco Duenas
- USDA-ARS, US Salinity Lab, Riverside, California, United States of America
- College of Natural and Agricultural Sciences, University of California Riverside, Riverside, California, United States of America
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11
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Mining Late Embryogenesis Abundant (LEA) Family Genes in Cleistogenes songorica, a Xerophyte Perennial Desert Plant. Int J Mol Sci 2018; 19:ijms19113430. [PMID: 30388835 PMCID: PMC6274777 DOI: 10.3390/ijms19113430] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 10/11/2018] [Accepted: 10/23/2018] [Indexed: 11/17/2022] Open
Abstract
Plant growth and development depends on its ability to maintain optimal cellular homeostasis during abiotic and biotic stresses. Cleistogenes songorica, a xerophyte desert plant, is known to have novel drought stress adaptation strategies and contains rich pools of stress tolerance genes. Proteins encoded by Late Embryogenesis Abundant (LEA) family genes promote cellular activities by functioning as disordered molecules, or by limiting collisions between enzymes during stresses. To date, functions of the LEA family genes have been heavily investigated in many plant species except perennial monocotyledonous species. In this study, 44 putative LEA genes were identified in the C. songorica genome and were grouped into eight subfamilies, based on their conserved protein domains and domain organizations. Phylogenetic analyses indicated that C. songorica Dehydrin and LEA_2 subfamily proteins shared high sequence homology with stress responsive Dehydrin proteins from Arabidopsis. Additionally, promoter regions of CsLEA_2 or CsDehydrin subfamily genes were rich in G-box, drought responsive (MBS), and/or Abscisic acid responsive (ABRE) cis-regulatory elements. In addition, gene expression analyses indicated that genes from these two subfamilies were highly responsive to heat stress and ABA treatment, in both leaves and roots. In summary, the results from this study provided a comprehensive view of C. songoricaLEA genes and the potential applications of these genes for the improvement of crop tolerance to abiotic stresses.
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12
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Abstract
The late embryogenesis abundant (LEA) family is composed of a diverse collection of multidomain and multifunctional proteins found in all three domains of the tree of life, but they are particularly common in plants. Most members of the family are known to play an important role in abiotic stress response and stress tolerance in plants but are also part of the plant hypersensitive response to pathogen infection. The mechanistic basis for LEA protein functionality is still poorly understood. The group of LEA 2 proteins harbor one or more copies of a unique domain, the water stress and hypersensitive response (WHy) domain. This domain sequence has recently been identified as a unique open reading frame (ORF) in some bacterial genomes (mostly in the phylum Firmicutes), and the recombinant bacterial WHy protein has been shown to exhibit a stress tolerance phenotype in Escherichia coli and an in vitro protein denaturation protective function. Multidomain phylogenetic analyses suggest that the WHy protein gene sequence may have ancestral origins in the domain Archaea, with subsequent acquisition in Bacteria and eukaryotes via endosymbiont or horizontal gene transfer mechanisms. Here, we review the structure, function, and nomenclature of LEA proteins, with a focus on the WHy domain as an integral component of the LEA constructs and as an independent protein.
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13
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The Late Embryogenesis Abundant Protein Family in Cassava ( Manihot esculenta Crantz): Genome-Wide Characterization and Expression during Abiotic Stress. Molecules 2018; 23:molecules23051196. [PMID: 29772750 PMCID: PMC6099554 DOI: 10.3390/molecules23051196] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/11/2018] [Accepted: 05/15/2018] [Indexed: 11/16/2022] Open
Abstract
Late embryogenesis abundant (LEA) proteins, as a highly diverse group of polypeptides, play an important role in plant adaptation to abiotic stress; however, LEAs from cassava have not been studied in cassava. In this study, 26 LEA members were genome-wide identified from cassava, which were clustered into seven subfamily according to evolutionary relationship, protein motif, and gene structure analyses. Chromosomal location and duplication event analyses suggested that 26 MeLEAs distributed in 10 chromosomes and 11 MeLEA paralogues were subjected to purifying selection. Transcriptomic analysis showed the expression profiles of MeLEAs in different tissues of stem, leaves, and storage roots of three accessions. Comparative transcriptomic analysis revealed that the function of MeLEAs in response to drought may be differentiated in different accessions. Compared with the wild subspecies W14, more MeLEA genes were activated in cultivated varieties Arg7 and SC124 after drought treatment. Several MeLEA genes showed induction under various stresses and related signaling treatments. Taken together, this study demonstrates the transcriptional control of MeLEAs in tissue development and the responses to abiotic stress in cassava and identifies candidate genes for improving crop resistance to abiotic stress.
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14
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Dong Y, Fang X, Yang Y, Xue GP, Chen X, Zhang W, Wang X, Yu C, Zhou J, Mei Q, Fang W, Yan C, Chen J. Comparative Proteomic Analysis of Susceptible and Resistant Rice Plants during Early Infestation by Small Brown Planthopper. FRONTIERS IN PLANT SCIENCE 2017; 8:1744. [PMID: 29089949 PMCID: PMC5651024 DOI: 10.3389/fpls.2017.01744] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 09/25/2017] [Indexed: 05/29/2023]
Abstract
The small brown planthopper (Laodelphax striatellus Fallén, Homoptera, Delphacidae-SBPH) is one of the major destructive pests of rice (Oryza sativa L.). Understanding on how rice responds to SBPH infestation will contribute to developing strategies for SBPH control. However, the response of rice plant to SBPH is poorly understood. In this study, two contrasting rice genotypes, Pf9279-4 (SBPH-resistant) and 02428 (SBPH-susceptible), were used for comparative analysis of protein profiles in the leaf sheath of rice plants in responses to SBPH infestation. One hundred and thirty-two protein spots that were differentially expressed between the resistant and susceptible rice lines were identified with significant intensity differences (≥2-fold, P < 0.05) at 0, 6, and 12 h after SBPH infestation. Protein expression profile analysis in the leaf sheath of SBPH-resistant and SBPH-susceptible rice lines after SBPH infestation showed that proteins induced by SBPH feeding were involved mainly in stress response, photosynthesis, protein metabolic process, carbohydrate metabolic process, energy metabolism, cell wall-related proteins, amino acid metabolism and transcriptional regulation. Gene expression analysis of 24 differentially expressed proteins (DEPs) showed that more than 50% DEPs were positively correlated with their mRNA levels. Analysis of some physiological indexes mainly involved in the removal of oxygen reactive species showed that the levels of superoxide dismutase (SOD) and glutathione (GSH) were considerably higher in Pf9279-4 than 02428 during SBPH infestation. The catalase (CAT) activity and hydroxyl radical inhibition were lower in Pf9279-4 than 02428. Analysis of enzyme activities indicates that Pf9279-4 rice plants defend against SBPH through the activation of the pathway of the salicylic acid (SA)-dependent systemic acquired resistance. In conclusion, this study provides some insights into the molecular networks involved on cellular and physiological responses to SBPH infestation.
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Affiliation(s)
- Yan Dong
- Agricultural Insect Laboratory, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of China Key Laboratory of Biotechnology in Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xianping Fang
- Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization and Hunan Provincial Key Laboratory of Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, China
| | - Yong Yang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of China Key Laboratory of Biotechnology in Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Gang-Ping Xue
- CSIRO Agriculture and Food, St Lucia, QLD, Australia
| | - Xian Chen
- Institute of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, China
| | - Weilin Zhang
- Plant Genetic Engineering Laboratory, College of Plant Protection, Zhejiang Normal University, Jinhua, China
| | - Xuming Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of China Key Laboratory of Biotechnology in Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Chulang Yu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of China Key Laboratory of Biotechnology in Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jie Zhou
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of China Key Laboratory of Biotechnology in Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Qiong Mei
- Plant Pathogens Laboratory, College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Wang Fang
- Institute of Biotechnology, Ningbo Academy of Agricultural Science, Ningbo, China
| | - Chengqi Yan
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of China Key Laboratory of Biotechnology in Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jianping Chen
- Agricultural Insect Laboratory, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of China Key Laboratory of Biotechnology in Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
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15
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Jiang S, Wang J, Liu X, Liu Y, Guo C, Zhang L, Han J, Wu X, Xue D, Gomaa AE, Feng S, Zhang H, Chen Y, Ping S, Chen M, Zhang W, Li L, Zhou Z, Zuo K, Li X, Yang Y, Lin M. DrwH, a novel WHy domain-containing hydrophobic LEA5C protein from Deinococcus radiodurans, protects enzymatic activity under oxidative stress. Sci Rep 2017; 7:9281. [PMID: 28839181 PMCID: PMC5570939 DOI: 10.1038/s41598-017-09541-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 07/24/2017] [Indexed: 11/09/2022] Open
Abstract
Water stress and hypersensitive response (WHy) domain is typically found as a component of atypical late embryogenesis abundant (LEA) proteins closely associated with resistance to multiple stresses in numerous organisms. Several putative LEA proteins have been identified in Deinococcus bacteria; however their precise function remains unclear. This work reports the characterization of a Deinococcus-specific gene encoding a novel WHy domain-containing hydrophobic LEA5C protein (named DrwH) in D. radiodurans R1. The expression of the drwH gene was induced by oxidative and salinity stresses. Inactivation of this gene resulted in increased sensitivity to oxidative and salinity stresses as well as reduced activities of antioxidant enzymes. The WHy domain of the DrwH protein differs structurally from that of a previously studied bacterial LEA5C protein, dWHy1, identified as a gene product from an Antarctic desert soil metagenome library. Further analysis indicated that in E. coli, the function of DrwH is related to oxidative stress tolerance, whereas dWHy1 is associated with freezing-thawing stress tolerance. Under oxidative stress induced by H2O2, DrwH protected the enzymatic activities of malate dehydrogenase (MDH) and lactate dehydrogenase (LDH). These findings provide new insight into the evolutionary and survival strategies of Deinococcus bacteria under extreme environmental conditions.
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Affiliation(s)
- Shijie Jiang
- Key Lab of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, PR China.,Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jin Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaoli Liu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yingying Liu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Cui Guo
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Liwen Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jiahui Han
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaoli Wu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dong Xue
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ahmed E Gomaa
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shuai Feng
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Heng Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yun Chen
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Plant Biotechnology Research Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Shuzhen Ping
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ming Chen
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wei Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Liang Li
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhengfu Zhou
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Kaijing Zuo
- Plant Biotechnology Research Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Xufeng Li
- Key Lab of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, PR China
| | - Yi Yang
- Key Lab of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, PR China
| | - Min Lin
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.
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16
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Zhou M, Paul AL, Ferl RJ. Data for characterization of SALK_084889, a T-DNA insertion line of Arabidopsis thaliana. Data Brief 2017. [PMID: 28649584 PMCID: PMC5470433 DOI: 10.1016/j.dib.2017.05.047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In this article we report the identification of T-DNA (transfer DNA) insertion sites within two different gene regions in the genome of an Arabidopsis mutant line, SALK_084889. The T-DNA positions are in the 3′ UTR (untranslated region) of DREB2A (Dehydration-responsive element-binding protein 2A) (AT5G05410) and promoter of LOX1 (Lipoxygenase 1) (AT1G55020) as determined by DNA-PCR and sanger sequencing. The expression levels of DREB2A and LOX1 were also analyzed using quantitative realtime PCR (qPCR) in SALK_084889 and wild type Arabidopsis (Col, Columbia). Further, the comparison of drought and heat tolerance between Col and SALK_084889 were conducted by stress treatments. The present data indicate that in SALK_084889, the expression of DREB2A is not downregulated under normal growth conditions but can be affected only in roots under drought treatment, while LOX1 is significantly downregulated in both roots and shoots under all tested conditions. These data are original and have not been published elsewhere.
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Affiliation(s)
- Mingqi Zhou
- Department of Horticultural Sciences, Program in Plant Molecular and Cellular Biology, University of Florida, Gainesville, FL 32611, United States
| | - Anna-Lisa Paul
- Department of Horticultural Sciences, Program in Plant Molecular and Cellular Biology, University of Florida, Gainesville, FL 32611, United States
| | - Robert J Ferl
- Department of Horticultural Sciences, Program in Plant Molecular and Cellular Biology, University of Florida, Gainesville, FL 32611, United States.,Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32610, United States
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17
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Huang Z, Zhong XJ, He J, Jin SH, Guo HD, Yu XF, Zhou YJ, Li X, Ma MD, Chen QB, Long H. Genome-Wide Identification, Characterization, and Stress-Responsive Expression Profiling of Genes Encoding LEA (Late Embryogenesis Abundant) Proteins in Moso Bamboo (Phyllostachys edulis). PLoS One 2016; 11:e0165953. [PMID: 27829056 PMCID: PMC5102402 DOI: 10.1371/journal.pone.0165953] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 10/20/2016] [Indexed: 01/10/2023] Open
Abstract
Late embryogenesis abundant (LEA) proteins have been identified in a wide range of organisms and are believed to play a role in the adaptation of plants to stress conditions. In this study, we performed genome-wide identification of LEA proteins and their coding genes in Moso bamboo (Phyllostachys edulis) of Poaceae. A total of 23 genes encoding LEA proteins (PeLEAs) were found in P. edulis that could be classified to six groups based on Pfam protein family and homologous analysis. Further in silico analyses of the structures, gene amount, and biochemical characteristics were conducted and compared with those of O. sativa (OsLEAs), B. distachyon (BdLEAs), Z. mays (ZmLEAs), S. bicolor (SbLEAs), Arabidopsis, and Populus trichocarpa. The less number of PeLEAs was found. Evolutionary analysis revealed orthologous relationship and colinearity between P. edulis, O. sativa, B. distachyon, Z. mays, and S. bicolor. Analyses of the non-synonymous (Ka) and synonymous (Ks)substitution rates and their ratios indicated that the duplication of PeLEAs may have occurred around 18.8 million years ago (MYA), and divergence time of LEA family among the P. edulis-O. sativa and P. edulis–B. distachyon, P. edulis-S. bicolor, and P. edulis-Z. mays was approximately 30 MYA, 36 MYA, 48 MYA, and 53 MYA, respectively. Almost all PeLEAs contain ABA- and (or) stress-responsive regulatory elements. Further RNA-seq analysis revealed approximately 78% of PeLEAs could be up-regulated by dehydration and cold stresses. The present study makes insights into the LEA family in P. edulis and provides inventory of stress-responsive genes for further functional validation and transgenic research aiming to plant genetic improvement of abiotic stress tolerance.
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Affiliation(s)
- Zhuo Huang
- College of Landscape Architecture, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
- * E-mail: (ZH); (HL)
| | - Xiao-Juan Zhong
- College of Landscape Architecture, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Jiao He
- College of Landscape Architecture, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Si-Han Jin
- College of Landscape Architecture, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Han-Du Guo
- College of Landscape Architecture, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Xiao-Fang Yu
- College of Landscape Architecture, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Yu-Jue Zhou
- College of Landscape Architecture, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Xi Li
- College of Landscape Architecture, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Ming-Dong Ma
- College of Landscape Architecture, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Qi-Bing Chen
- College of Landscape Architecture, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Hai Long
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
- * E-mail: (ZH); (HL)
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18
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Tamayo-Ordóñez MC, Rodriguez-Zapata LC, Narváez-Zapata JA, Tamayo-Ordóñez YJ, Ayil-Gutiérrez BA, Barredo-Pool F, Sánchez-Teyer LF. Morphological features of different polyploids for adaptation and molecular characterization of CC-NBS-LRR and LEA gene families in Agave L. JOURNAL OF PLANT PHYSIOLOGY 2016; 195:80-94. [PMID: 27016883 DOI: 10.1016/j.jplph.2016.03.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 03/12/2016] [Accepted: 03/18/2016] [Indexed: 05/21/2023]
Abstract
Polyploidy has been widely described in many Agave L. species, but its influence on environmental response to stress is still unknown. With the objective of knowing the morphological adaptations and regulation responses of genes related to biotic (LEA) and abiotic (NBS-LRR) stress in species of Agave with different levels of ploidy, and how these factors contribute to major response of Agave against environmental stresses, we analyzed 16 morphological trials on five accessions of three species (Agave tequilana Weber, Agave angustifolia Haw. and Agave fourcroydes Lem.) with different ploidy levels (2n=2x=60 2n=3x=90, 2n=5x=150, 2n=6x=180) and evaluated the expression of NBS-LRR and LEA genes regulated by biotic and abiotic stress. It was possible to associate some morphological traits (spines, nuclei, and stomata) to ploidy level. The genetic characterization of stress-related genes NBS-LRR induced by pathogenic infection and LEA by heat or saline stresses indicated that amino acid sequence analysis in these genes showed more substitutions in higher ploidy level accessions of A. fourcroydes Lem. 'Sac Ki' (2n=5x=150) and A. angustifolia Haw. 'Chelem Ki' (2n=6x=180), and a higher LEA and NBS-LRR representativeness when compared to their diploid and triploid counterparts. In all studied Agave accessions expression of LEA and NBS-LRR genes was induced by saline or heat stresses or by infection with Erwinia carotovora, respectively. The transcriptional activation was also higher in A. angustifolia Haw. 'Chelem Ki' (2n=6x=180) and A. fourcroydes 'Sac Ki' (2n=5x=150) than in their diploid and triploid counterparts, which suggests higher adaptation to stress. Finally, the diploid accession A. tequilana Weber 'Azul' showed a differentiated genetic profile relative to other Agave accessions. The differences include similar or higher genetic representativeness and transcript accumulation of LEA and NBS-LRR genes than in polyploid (2n=5x=150 and 2n=6x=180) Agave accessions, thus suggesting a differentiated selection pressure for overcoming the lower ploidy level of the diploid A. tequilana Weber 'Azul'.
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Affiliation(s)
- M C Tamayo-Ordóñez
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán. Calle 43 No. 130, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
| | - L C Rodriguez-Zapata
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán. Calle 43 No. 130, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
| | - J A Narváez-Zapata
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Blvd. del Maestro, s/n, Esq. Elías Piña, Reynosa 88710, Mexico
| | - Y J Tamayo-Ordóñez
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán. Calle 43 No. 130, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
| | - B A Ayil-Gutiérrez
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Blvd. del Maestro, s/n, Esq. Elías Piña, Reynosa 88710, Mexico
| | - F Barredo-Pool
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán. Calle 43 No. 130, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
| | - L F Sánchez-Teyer
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán. Calle 43 No. 130, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico.
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19
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Mudalkar S, Sreeharsha RV, Reddy AR. A novel aldo-keto reductase from Jatropha curcas L. (JcAKR) plays a crucial role in the detoxification of methylglyoxal, a potent electrophile. JOURNAL OF PLANT PHYSIOLOGY 2016; 195:39-49. [PMID: 26995646 DOI: 10.1016/j.jplph.2016.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 03/09/2016] [Accepted: 03/09/2016] [Indexed: 06/05/2023]
Abstract
Abiotic stress leads to the generation of reactive oxygen species (ROS) which further results in the production of reactive carbonyls (RCs) including methylglyoxal (MG). MG, an α, β-dicarbonyl aldehyde, is highly toxic to plants and the mechanism behind its detoxification is not well understood. Aldo-keto reductases (AKRs) play a role in detoxification of reactive aldehydes and ketones. In the present study, we cloned and characterised a putative AKR from Jatropha curcas (JcAKR). Phylogenetically, it forms a small clade with AKRs of Glycine max and Rauwolfia serpentina. JcAKR was heterologously expressed in Escherichia coli BL-21(DE3) cells and the identity of the purified protein was confirmed through MALDI-TOF analysis. The recombinant protein had high enzyme activity and catalytic efficiency in assays containing MG as the substrate. Protein modelling and docking studies revealed MG was efficiently bound to JcAKR. Under progressive drought and salinity stress, the enzyme and transcript levels of JcAKR were higher in leaves compared to roots. Further, the bacterial and yeast cells expressing JcAKR showed more tolerance towards PEG (5%), NaCl (200mM) and MG (5mM) treatments compared to controls. In conclusion, our results project JcAKR as a possible and potential target in crop improvement for abiotic stress tolerance.
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Affiliation(s)
- Shalini Mudalkar
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India
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20
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Sharma A, Kumar D, Kumar S, Rampuria S, Reddy AR, Kirti PB. Ectopic Expression of an Atypical Hydrophobic Group 5 LEA Protein from Wild Peanut, Arachis diogoi Confers Abiotic Stress Tolerance in Tobacco. PLoS One 2016; 11:e0150609. [PMID: 26938884 PMCID: PMC4777422 DOI: 10.1371/journal.pone.0150609] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 02/16/2016] [Indexed: 11/23/2022] Open
Abstract
Late embryogenesis abundant (LEA) proteins are a group of hydrophilic proteins, which accumulate in plants under varied stress conditions like drought, salinity, extreme temperatures and oxidative stress suggesting their role in the protection of plants against these stresses. A transcript derived fragment (TDF) corresponding to LEA gene, which got differentially expressed in wild peanut, Arachis diogoi against the late leaf spot pathogen, Phaeoisariopsis personata was used in this study. We have cloned its full length cDNA by RACE-PCR, which was designated as AdLEA. AdLEA belongs to the atypical Group 5C of LEA protein family as confirmed by sequence analysis. Group 5C LEA protein subfamily contains Pfam LEA_2 domain and is highly hydrophobic. In native conditions, expression of AdLEA was upregulated considerably upon hormonal and abiotic stress treatments emphasizing its role in abiotic stress tolerance. Subcellular localization studies showed that AdLEA protein is distributed in both nucleus and cytosol. Ectopic expression of AdLEA in tobacco resulted in enhanced tolerance of plants to dehydration, salinity and oxidative stress with the transgenic plants showing higher chlorophyll content and reduced lipid peroxidation as compared to wild type plants. Overexpressed AdLEA tobacco plants maintained better photosynthetic efficiency under drought conditions as demonstrated by chlorophyll fluorescence measurements. These plants showed enhanced transcript accumulation of some stress-responsive genes. Our study also elucidates that ROS levels were significantly reduced in leaves and stomatal guard cells of transgenic plants upon stress treatments. These results suggest that AdLEA confers multiple stress tolerance to plants, which make it a potential gene for genetic modification in plants.
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Affiliation(s)
- Akanksha Sharma
- Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Dilip Kumar
- Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
- Department of Postharvest Science of Fresh Produce, ARO, The Volcani Center, Bet Dagan, 50250, Israel
| | - Sumit Kumar
- Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Sakshi Rampuria
- Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Attipalli R. Reddy
- Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
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21
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Transcriptome Analysis of Salt Stress Responsiveness in the Seedlings of Dongxiang Wild Rice (Oryza rufipogon Griff.). PLoS One 2016; 11:e0146242. [PMID: 26752408 PMCID: PMC4709063 DOI: 10.1371/journal.pone.0146242] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 12/15/2015] [Indexed: 11/19/2022] Open
Abstract
Dongxiang wild rice (Oryza rufipogon Griff.) is the progenitor of cultivated rice (Oryza sativa L.), and is well known for its superior level of tolerance against cold, drought and diseases. To date, however, little is known about the salt-tolerant character of Dongxiang wild rice. To elucidate the molecular genetic mechanisms of salt-stress tolerance in Dongxiang wild rice, the Illumina HiSeq 2000 platform was used to analyze the transcriptome profiles of the leaves and roots at the seedling stage under salt stress compared with those under normal conditions. The analysis results for the sequencing data showed that 6,867 transcripts were differentially expressed in the leaves (2,216 up-regulated and 4,651 down-regulated) and 4,988 transcripts in the roots (3,105 up-regulated and 1,883 down-regulated). Among these differentially expressed genes, the detection of many transcription factor genes demonstrated that multiple regulatory pathways were involved in salt stress tolerance. In addition, the differentially expressed genes were compared with the previous RNA-Seq analysis of salt-stress responses in cultivated rice Nipponbare, indicating the possible specific molecular mechanisms of salt-stress responses for Dongxiang wild rice. A large number of the salt-inducible genes identified in this study were co-localized onto fine-mapped salt-tolerance-related quantitative trait loci, providing candidates for gene cloning and elucidation of molecular mechanisms responsible for salt-stress tolerance in rice.
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22
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Xiang Y, Lu YH, Song M, Wang Y, Xu W, Wu L, Wang H, Ma Z. Overexpression of a Triticum aestivum Calreticulin gene (TaCRT1) Improves Salinity Tolerance in Tobacco. PLoS One 2015; 10:e0140591. [PMID: 26469859 PMCID: PMC4607401 DOI: 10.1371/journal.pone.0140591] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 09/27/2015] [Indexed: 12/17/2022] Open
Abstract
Calreticulin (CRT) is a highly conserved and abundant multifunctional protein that is encoded by a small gene family and is often associated with abiotic/biotic stress responses in plants. However, the roles played by this protein in salt stress responses in wheat (Triticum aestivum) remain obscure. In this study, three TaCRT genes were identified in wheat and named TaCRT1, TaCRT2 and TaCRT3-1 based on their sequence characteristics and their high homology to other known CRT genes. Quantitative real-time PCR expression data revealed that these three genes exhibit different expression patterns in different tissues and are strongly induced under salt stress in wheat. The calcium-binding properties of the purified recombinant TaCRT1 protein were determined using a PIPES/Arsenazo III analysis. TaCRT1 gene overexpression in Nicotiana tabacum decreased salt stress damage in transgenic tobacco plants. Physiological measurements indicated that transgenic tobacco plants showed higher activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) than non-transgenic tobacco under normal growth conditions. Interestingly, overexpression of the entire TaCRT1 gene or of partial TaCRT1 segments resulted in significantly higher tolerance to salt stress in transgenic plants compared with their WT counterparts, thus revealing the essential role of the C-domain of TaCRT1 in countering salt stress in plants.
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Affiliation(s)
- Yang Xiang
- Guizhou Rapeseed Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - Yun Hai Lu
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Min Song
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
- Qufu Normal University, College of Life Sciences, Qufu, China
| | - Yun Wang
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - Wenqi Xu
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - Lintao Wu
- Guizhou Rapeseed Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Hancheng Wang
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - Zhengqiang Ma
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
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23
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Lim CW, Lim S, Baek W, Lee SC. The pepper late embryogenesis abundant protein CaLEA1 acts in regulating abscisic acid signaling, drought and salt stress response. PHYSIOLOGIA PLANTARUM 2015; 154:526-42. [PMID: 25302464 DOI: 10.1111/ppl.12298] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 09/11/2014] [Accepted: 09/26/2014] [Indexed: 05/08/2023]
Abstract
As sessile organisms, plants are constantly challenged by environmental stresses, including drought and high salinity. Among the various abiotic stresses, osmotic stress is one of the most important factors for growth and significantly reduces crop productivity in agriculture. Here, we report a function of the CaLEA1 protein in the defense responses of plants to osmotic stress. Our analyses showed that the CaLEA1 gene was strongly induced in pepper leaves exposed to drought and increased salinity. Furthermore, we determined that the CaLEA1 protein has a late embryogenesis abundant (LEA)_3 homolog domain highly conserved among other known group 5 LEA proteins and is localized in the processing body. We generated CaLEA1-silenced peppers and CaLEA1-overexpressing (OX) transgenic Arabidopsis plants to evaluate their responses to dehydration and high salinity. Virus-induced gene silencing of CaLEA1 in pepper plants conferred enhanced sensitivity to drought and salt stresses, which was accompanied by high levels of lipid peroxidation in dehydrated and NaCl-treated leaves. CaLEA1-OX plants exhibited enhanced sensitivity to abscisic acid (ABA) during seed germination and in the seedling stage; furthermore, these plants were more tolerant to drought and salt stress than the wild-type plants because of enhanced stomatal closure and increased expression of stress-responsive genes. Collectively, our data suggest that CaLEA1 positively regulates drought and salinity tolerance through ABA-mediated cell signaling.
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Affiliation(s)
- Chae Woo Lim
- Department of Life Science (BK21 Program), Chung-Ang University, Seoul, 156-756, Republic of Korea
| | - Sohee Lim
- Department of Life Science (BK21 Program), Chung-Ang University, Seoul, 156-756, Republic of Korea
| | - Woonhee Baek
- Department of Life Science (BK21 Program), Chung-Ang University, Seoul, 156-756, Republic of Korea
| | - Sung Chul Lee
- Department of Life Science (BK21 Program), Chung-Ang University, Seoul, 156-756, Republic of Korea
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24
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Amara I, Zaidi I, Masmoudi K, Ludevid MD, Pagès M, Goday A, Brini F. Insights into Late Embryogenesis Abundant (LEA) Proteins in Plants: From Structure to the Functions. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/ajps.2014.522360] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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