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Wang C, Wen J, Liu Y, Yu B, Yang S. SOS2-AFP2 module regulates seed germination by inducing ABI5 degradation in response to salt stress in Arabidopsis. Biochem Biophys Res Commun 2024; 723:150190. [PMID: 38838447 DOI: 10.1016/j.bbrc.2024.150190] [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: 05/23/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/07/2024]
Abstract
Soil salinity pose a significant challenge to global agriculture, threatening crop yields and food security. Understanding the salt tolerance mechanisms of plants is crucial for improving their survival under salt stress. AFP2, a negative regulator of ABA signaling, has been shown to play a crucial role in salt stress tolerance during seed germination. Mutations in AFP2 gene lead to increased sensitivity to salt stress. However, the underline mechanisms by which AFP2 regulates seed germination under salt stress remain elusive. In this study, we identified a protein interaction between AFP2 and SOS2, a Ser/Thr protein kinase known to play a critical role in salt stress response. Using a combination of genetic, biochemical, and physiological approaches, we investigated the role of the SOS2-AFP2 module in regulating seed germination under salt stress. Our findings reveal that SOS2 physically interacts with AFP2 and stabilizes it, leading to the degradation of the ABI5 protein, a negative transcription factor in seed germination under salt stress. This study sheds light on previously unknown connections within salt stress and ABA signaling, paving the way for novel strategies to enhance plant resilience against environmental challenges.
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Affiliation(s)
- Chuntao Wang
- Yuxi Normal University, Yuxi, 653100, China; Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
| | - Jing Wen
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuanyuan Liu
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Buzhu Yu
- Yuxi Normal University, Yuxi, 653100, China
| | - Shuda Yang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China
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2
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Xie Q, Yin X, Wang Y, Qi Y, Pan C, Sulaymanov S, Qiu QS, Zhou Y, Jiang X. The signalling pathways, calcineurin B-like protein 5 (CBL5)-CBL-interacting protein kinase 8 (CIPK8)/CIPK24-salt overly sensitive 1 (SOS1), transduce salt signals in seed germination in Arabidopsis. PLANT, CELL & ENVIRONMENT 2024; 47:1486-1502. [PMID: 38238896 DOI: 10.1111/pce.14820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 11/21/2023] [Accepted: 12/03/2023] [Indexed: 04/06/2024]
Abstract
For plant growth under salt stress, sensing and transducing salt signals are central to cellular Na+ homoeostasis. The calcineurin B-like protein (CBL)-CBL-interacting protein kinase (CIPK) complexes play critical roles in transducing salt signals in plants. Here, we show that CBL5, an ortholog of CBL4 and CBL10 in Arabidopsis, interacts with and recruits CIPK8/CIPK24 to the plasma membrane. Yeast cells coexpressing CBL5, CIPK8/CIPK24 and SOS1 demonstrated lesser Na+ accumulation and a better growth phenotype than the untransformed or SOS1 transgenic yeast cells under salinity. Overexpression of CBL5 improved the growth of the cipk8 or cipk24 single mutant but not the cipk8 cipk24 double mutant under salt stress, suggesting that CIPK8 and CIPK24 were the downstream targets of CBL5. Interestingly, seed germination in cbl5 was severely inhibited by NaCl, which was recovered by the overexpression of CBL5. Furthermore, CBL5 was mainly expressed in the cotyledons and hypocotyls, which are essential to seed germination. Na+ efflux activity in the hypocotyls of cbl5 was reduced relative to the wild-type under salt stress, enhancing Na+ accumulation. These findings indicate that CBL5 functions in seed germination and protects seeds and germinating seedlings from salt stress through the CBL5-CIPK8/CIPK24-SOS1 pathways.
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Affiliation(s)
- Qing Xie
- National Center for Technology Innovation of Saline-Alkali Tolerant Rice/College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Xiaochang Yin
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Tropical Agriculture and Forestry (School of Agricultural and Rural Affairs, School of Rural Revitalization), Hainan University, Haikou, China
| | - Yu Wang
- National Center for Technology Innovation of Saline-Alkali Tolerant Rice/College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Yuting Qi
- MOE Key Laboratory of Cell Activities and Stress Adaptations/School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Chengcai Pan
- National Center for Technology Innovation of Saline-Alkali Tolerant Rice/College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Sunnatulla Sulaymanov
- National Center for Technology Innovation of Saline-Alkali Tolerant Rice/College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Quan-Sheng Qiu
- MOE Key Laboratory of Cell Activities and Stress Adaptations/School of Life Sciences, Lanzhou University, Lanzhou, China
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Lanzhou University, Lanzhou, China
| | - Yang Zhou
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Tropical Agriculture and Forestry (School of Agricultural and Rural Affairs, School of Rural Revitalization), Hainan University, Haikou, China
| | - Xingyu Jiang
- National Center for Technology Innovation of Saline-Alkali Tolerant Rice/College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
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3
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Iglesias-Moya J, Benítez Á, Segura M, Alonso S, Garrido D, Martínez C, Jamilena M. Structural and functional characterization of genes PYL-PP2C-SnRK2s in the ABA signalling pathway of Cucurbita pepo. BMC Genomics 2024; 25:268. [PMID: 38468207 PMCID: PMC10926676 DOI: 10.1186/s12864-024-10158-9] [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: 09/27/2023] [Accepted: 02/24/2024] [Indexed: 03/13/2024] Open
Abstract
BACKGROUND The core regulation of the abscisic acid (ABA) signalling pathway comprises the multigenic families PYL, PP2C, and SnRK2. In this work, we conducted a genome-wide study of the components of these families in Cucurbita pepo. RESULTS The bioinformatic analysis of the C. pepo genome resulted in the identification of 19 CpPYL, 102 CpPP2C and 10 CpSnRK2 genes. The investigation of gene structure and protein motifs allowed to define 4 PYL, 13 PP2C and 3 SnRK2 subfamilies. RNA-seq analysis was used to determine the expression of these gene families in different plant organs, as well as to detect their differential gene expression during germination, and in response to ABA and cold stress in leaves. The specific tissue expression of some gene members indicated the relevant role of some ABA signalling genes in plant development. Moreover, their differential expression under ABA treatment or cold stress revealed those ABA signalling genes that responded to ABA, and those that were up- or down-regulated in response to cold stress. A reduced number of genes responded to both treatments. Specific PYL-PP2C-SnRK2 genes that had potential roles in germination were also detected, including those regulated early during the imbibition phase, those regulated later during the embryo extension and radicle emergence phase, and those induced or repressed during the whole germination process. CONCLUSIONS The outcomes of this research open new research lines for agriculture and for assessing gene function in future studies.
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Affiliation(s)
- Jessica Iglesias-Moya
- Department of Biology and Geology. Agri-food Campus of International Excellence (CeiA3) and Research Center CIAIMBITAL, University of Almería, 04120, Almería, Spain
| | - Álvaro Benítez
- Department of Biology and Geology. Agri-food Campus of International Excellence (CeiA3) and Research Center CIAIMBITAL, University of Almería, 04120, Almería, Spain
| | - María Segura
- Department of Biology and Geology. Agri-food Campus of International Excellence (CeiA3) and Research Center CIAIMBITAL, University of Almería, 04120, Almería, Spain
| | - Sonsoles Alonso
- Department of Biology and Geology. Agri-food Campus of International Excellence (CeiA3) and Research Center CIAIMBITAL, University of Almería, 04120, Almería, Spain
| | - Dolores Garrido
- Department of Plant Physiology. Faculty of Science, University of Granada, 18021, Granada, Spain
| | - Cecilia Martínez
- Department of Biology and Geology. Agri-food Campus of International Excellence (CeiA3) and Research Center CIAIMBITAL, University of Almería, 04120, Almería, Spain.
| | - Manuel Jamilena
- Department of Biology and Geology. Agri-food Campus of International Excellence (CeiA3) and Research Center CIAIMBITAL, University of Almería, 04120, Almería, Spain.
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Gámez-Arjona F, Park HJ, García E, Aman R, Villalta I, Raddatz N, Carranco R, Ali A, Ali Z, Zareen S, De Luca A, Leidi EO, Daniel-Mozo M, Xu ZY, Albert A, Kim WY, Pardo JM, Sánchez-Rodriguez C, Yun DJ, Quintero FJ. Inverse regulation of SOS1 and HKT1 protein localization and stability by SOS3/CBL4 in Arabidopsis thaliana. Proc Natl Acad Sci U S A 2024; 121:e2320657121. [PMID: 38386704 PMCID: PMC10907282 DOI: 10.1073/pnas.2320657121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/12/2024] [Indexed: 02/24/2024] Open
Abstract
To control net sodium (Na+) uptake, Arabidopsis plants utilize the plasma membrane (PM) Na+/H+ antiporter SOS1 to achieve Na+ efflux at the root and Na+ loading into the xylem, and the channel-like HKT1;1 protein that mediates the reverse flux of Na+ unloading off the xylem. Together, these opposing transport systems govern the partition of Na+ within the plant yet they must be finely co-regulated to prevent a futile cycle of xylem loading and unloading. Here, we show that the Arabidopsis SOS3 protein acts as the molecular switch governing these Na+ fluxes by favoring the recruitment of SOS1 to the PM and its subsequent activation by the SOS2/SOS3 kinase complex under salt stress, while commanding HKT1;1 protein degradation upon acute sodic stress. SOS3 achieves this role by direct and SOS2-independent binding to previously unrecognized functional domains of SOS1 and HKT1;1. These results indicate that roots first retain moderate amounts of salts to facilitate osmoregulation, yet when sodicity exceeds a set point, SOS3-dependent HKT1;1 degradation switches the balance toward Na+ export out of the root. Thus, SOS3 functionally links and co-regulates the two major Na+ transport systems operating in vascular plants controlling plant tolerance to salinity.
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Affiliation(s)
- Francisco Gámez-Arjona
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and University of Seville, Seville41092, Spain
- Department of Biology, ETH Zurich, Zurich8092, Switzerland
| | - Hee Jin Park
- Department of Biomedical Science and Engineering, Konkuk University, Seoul05029, South Korea
- Department of Biological Sciences, Chonnam National University, Gwangju61186, Korea
| | - Elena García
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and University of Seville, Seville41092, Spain
| | - Rashid Aman
- Laboratory for Genome Engineering and Synthetic Biology, King Abdullah University of Science and Technology, Thuwal23955-6900, Saudi Arabia
| | - Irene Villalta
- Institut de Recherche sur la Biologie de l’Insecte, Université de Tours, Tours37200, France
| | - Natalia Raddatz
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and University of Seville, Seville41092, Spain
| | - Raul Carranco
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and University of Seville, Seville41092, Spain
| | - Akhtar Ali
- Department of Biomedical Science and Engineering, Konkuk University, Seoul05029, South Korea
| | - Zahir Ali
- Laboratory for Genome Engineering and Synthetic Biology, King Abdullah University of Science and Technology, Thuwal23955-6900, Saudi Arabia
| | - Shah Zareen
- Department of Biomedical Science and Engineering, Konkuk University, Seoul05029, South Korea
| | - Anna De Luca
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and University of Seville, Seville41092, Spain
| | - Eduardo O. Leidi
- Instituto de Recursos Naturales y Agrobiología, Consejo Superior de Investigaciones Cientificas, Seville41012, Spain
| | - Miguel Daniel-Mozo
- Instituto de Química Física Blas Cabrera, Consejo Superior de Investigaciones Científicas, Madrid28006, Spain
| | - Zheng-Yi Xu
- Key Laboratory of Molecular Epigenetics, Northeast Normal University, Changchun130024, China
| | - Armando Albert
- Instituto de Química Física Blas Cabrera, Consejo Superior de Investigaciones Científicas, Madrid28006, Spain
| | - Woe-Yeon Kim
- Division of Applied Life Science (BK21 Program), Research Institute of Life Sciences, Gyeongsang National University, Jinju660-701, South Korea
| | - Jose M. Pardo
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and University of Seville, Seville41092, Spain
| | - Clara Sánchez-Rodriguez
- Department of Biology, ETH Zurich, Zurich8092, Switzerland
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid–Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (CSIC), Pozuelo de Alarcón28223, Spain
| | - Dae-Jin Yun
- Department of Biomedical Science and Engineering, Konkuk University, Seoul05029, South Korea
| | - Francisco J. Quintero
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and University of Seville, Seville41092, Spain
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5
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Ahmed M, Tóth Z, Decsi K. The Impact of Salinity on Crop Yields and the Confrontational Behavior of Transcriptional Regulators, Nanoparticles, and Antioxidant Defensive Mechanisms under Stressful Conditions: A Review. Int J Mol Sci 2024; 25:2654. [PMID: 38473901 DOI: 10.3390/ijms25052654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
One of the most significant environmental challenges to crop growth and yield worldwide is soil salinization. Salinity lowers soil solution water potential, causes ionic disequilibrium and specific ion effects, and increases reactive oxygen species (ROS) buildup, causing several physiological and biochemical issues in plants. Plants have developed biological and molecular methods to combat salt stress. Salt-signaling mechanisms regulated by phytohormones may provide additional defense in salty conditions. That discovery helped identify the molecular pathways that underlie zinc-oxide nanoparticle (ZnO-NP)-based salt tolerance in certain plants. It emphasized the need to study processes like transcriptional regulation that govern plants' many physiological responses to such harsh conditions. ZnO-NPs have shown the capability to reduce salinity stress by working with transcription factors (TFs) like AP2/EREBP, WRKYs, NACs, and bZIPs that are released or triggered to stimulate plant cell osmotic pressure-regulating hormones and chemicals. In addition, ZnO-NPs have been shown to reduce the expression of stress markers such as malondialdehyde (MDA) and hydrogen peroxide (H2O2) while also affecting transcriptional factors. Those systems helped maintain protein integrity, selective permeability, photosynthesis, and other physiological processes in salt-stressed plants. This review examined how salt stress affects crop yield and suggested that ZnO-NPs could reduce plant salinity stress instead of osmolytes and plant hormones.
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Affiliation(s)
- Mostafa Ahmed
- Festetics Doctoral School, Institute of Agronomy, Georgikon Campus, Hungarian University of Agriculture and Life Sciences, 8360 Keszthely, Hungary
- Department of Agricultural Biochemistry, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Zoltán Tóth
- Institute of Agronomy, Georgikon Campus, Hungarian University of Agriculture and Life Sciences, 8360 Keszthely, Hungary
| | - Kincső Decsi
- Institute of Agronomy, Georgikon Campus, Hungarian University of Agriculture and Life Sciences, 8360 Keszthely, Hungary
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6
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Zhang Y, Zhou J, Ni X, Wang Q, Jia Y, Xu X, Wu H, Fu P, Wen H, Guo Y, Yang G. Structural basis for the activity regulation of Salt Overly Sensitive 1 in Arabidopsis salt tolerance. NATURE PLANTS 2023; 9:1915-1923. [PMID: 37884652 DOI: 10.1038/s41477-023-01550-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023]
Abstract
The plasma membrane Na+/H+ exchanger Salt Overly Sensitive 1 (SOS1) is crucial for plant salt tolerance. Unlike typical sodium/proton exchangers, SOS1 contains a large cytoplasmic domain (CPD) that regulates Na+/H+ exchange activity. However, the underlying modulation mechanism remains unclear. Here we report the structures of SOS1 from Arabidopsis thaliana in two conformations, primarily differing in CPD flexibility. The CPD comprises an interfacial domain, a cyclic nucleotide-binding domain-like domain (CNBD-like domain) and an autoinhibition domain. Through yeast cell-based Na+ tolerance test, we reveal the regulatory role of the interfacial domain and the activation role of the CNBD-like domain. The CPD forms a negatively charged cavity that is connected to the ion binding site. The transport of Na+ may be coupled with the conformational change of CPD. These findings provide structural and functional insight into SOS1 activity regulation.
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Affiliation(s)
- Yanming Zhang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Jiaqi Zhou
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xuping Ni
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | | | - Yutian Jia
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xia Xu
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Haoyang Wu
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Peng Fu
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Han Wen
- DP Technology, Beijing, China
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Guanghui Yang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, China.
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7
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Hao R, Zhou W, Li J, Luo M, Scheres B, Guo Y. On salt stress, PLETHORA signaling maintains root meristems. Dev Cell 2023; 58:1657-1669.e5. [PMID: 37480843 DOI: 10.1016/j.devcel.2023.06.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 04/02/2023] [Accepted: 06/30/2023] [Indexed: 07/24/2023]
Abstract
Salt stress is one of the unfavorable environmental factors to affect plants. Salinity represses root growth, resulting in reduced biomass of agricultural plants. Little is known about how plants maintain root growth to counteract salt stress. The AP2-domain transcription factors PLETHORA1/2 (PLT1/2) act as master regulators in root meristem maintenance in Arabidopsis. In this study, we report that the salt overly sensitive (SOS) pathway component SOS2 regulates PLT1/2 at the post-transcriptional level. Salt-activated SOS2 interacts and phosphorylates PLT1/2 through their conserved C-terminal motifs to stabilize PLT1/2, critical for root apical meristem maintenance under salt stress. The phospho-mimetic version of PLT1/2 restored meristem and primary root length reduction of sos2-2 and plt1-4 plt2-2 mutants on salt treatment. Moreover, SOS2-mediated PLT1/2 phosphorylation improves root growth recovery after salt stress alleviation. We identify a SOS2-PLT1/2 core protein module that is required for protecting primary root growth and meristem maintenance from salt stress.
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Affiliation(s)
- Rong Hao
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Wenkun Zhou
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China.
| | - Jingrui Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Manqing Luo
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Ben Scheres
- Laboratory of Plant Developmental Biology, Wageningen University and Research, 6708 PB Wageningen, the Netherlands; Rijk Zwaan R&D, 4793 RS Fijnaart, the Netherlands
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China.
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8
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Han R, Ma L, Lv Y, Qi L, Peng J, Li H, Zhou Y, Song P, Duan J, Li J, Li Z, Terzaghi W, Guo Y, Li J. SALT OVERLY SENSITIVE2 stabilizes phytochrome-interacting factors PIF4 and PIF5 to promote Arabidopsis shade avoidance. THE PLANT CELL 2023; 35:2972-2996. [PMID: 37119311 PMCID: PMC10396385 DOI: 10.1093/plcell/koad119] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 03/08/2023] [Accepted: 04/10/2023] [Indexed: 06/19/2023]
Abstract
Sun-loving plants trigger the shade avoidance syndrome (SAS) to compete against their neighbors for sunlight. Phytochromes are plant red (R) and far-red (FR) light photoreceptors that play a major role in perceiving the shading signals and triggering SAS. Shade induces a reduction in the level of active phytochrome B (phyB), thus increasing the abundance of PHYTOCHROME-INTERACTING FACTORS (PIFs), a group of growth-promoting transcription factors. However, whether other factors are involved in modulating PIF activity in the shade remains largely obscure. Here, we show that SALT OVERLY SENSITIVE2 (SOS2), a protein kinase essential for salt tolerance, positively regulates SAS in Arabidopsis thaliana. SOS2 directly phosphorylates PIF4 and PIF5 at a serine residue close to their conserved motif for binding to active phyB. This phosphorylation thus decreases their interaction with phyB and posttranslationally promotes PIF4 and PIF5 protein accumulation. Notably, the role of SOS2 in regulating PIF4 and PIF5 protein abundance and SAS is more prominent under salt stress. Moreover, phyA and phyB physically interact with SOS2 and promote SOS2 kinase activity in the light. Collectively, our study uncovers an unexpected role of salt-activated SOS2 in promoting SAS by modulating the phyB-PIF module, providing insight into the coordinated response of plants to salt stress and shade.
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Affiliation(s)
- Run Han
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Liang Ma
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yang Lv
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Lijuan Qi
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jing Peng
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Hong Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yangyang Zhou
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Pengyu Song
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jie Duan
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jianfang Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhen Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - William Terzaghi
- Department of Biology, Wilkes University, Wilkes-Barre, PA 18766, USA
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jigang Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
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9
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Ma L, Han R, Yang Y, Liu X, Li H, Zhao X, Li J, Fu H, Huo Y, Sun L, Yan Y, Zhang H, Li Z, Tian F, Li J, Guo Y. Phytochromes enhance SOS2-mediated PIF1 and PIF3 phosphorylation and degradation to promote Arabidopsis salt tolerance. THE PLANT CELL 2023; 35:2997-3020. [PMID: 37119239 PMCID: PMC10396371 DOI: 10.1093/plcell/koad117] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 03/08/2023] [Accepted: 04/10/2023] [Indexed: 06/19/2023]
Abstract
Soil salinity is one of the most detrimental abiotic stresses affecting plant survival, and light is a core environmental signal regulating plant growth and responses to abiotic stress. However, how light modulates the plant's response to salt stress remains largely obscure. Here, we show that Arabidopsis (Arabidopsis thaliana) seedlings are more tolerant to salt stress in the light than in the dark, and that the photoreceptors phytochrome A (phyA) and phyB are involved in this tolerance mechanism. We further show that phyA and phyB physically interact with the salt tolerance regulator SALT OVERLY SENSITIVE2 (SOS2) in the cytosol and nucleus, and enhance salt-activated SOS2 kinase activity in the light. Moreover, SOS2 directly interacts with and phosphorylates PHYTOCHROME-INTERACTING FACTORS PIF1 and PIF3 in the nucleus. Accordingly, PIFs act as negative regulators of plant salt tolerance, and SOS2 phosphorylation of PIF1 and PIF3 decreases their stability and relieves their repressive effect on plant salt tolerance in both light and dark conditions. Together, our study demonstrates that photoactivated phyA and phyB promote plant salt tolerance by increasing SOS2-mediated phosphorylation and degradation of PIF1 and PIF3, thus broadening our understanding of how plants adapt to salt stress according to their dynamic light environment.
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Affiliation(s)
- Liang Ma
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Run Han
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yongqing Yang
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xiangning Liu
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Hong Li
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xiaoyun Zhao
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jianfang Li
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Haiqi Fu
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yandan Huo
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Liping Sun
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yan Yan
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Hongyan Zhang
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhen Li
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Feng Tian
- National Maize Improvement Center, Key Laboratory of Biology and Genetic Improvement of Maize (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Jigang Li
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience (SKLPER), College of Biological Sciences, China Agricultural University, Beijing 100193, China
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10
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Liang L, Guo L, Zhai Y, Hou Z, Wu W, Zhang X, Wu Y, Liu X, Guo S, Gao G, Liu W. Genome-wide characterization of SOS1 gene family in potato ( Solanum tuberosum) and expression analyses under salt and hormone stress. FRONTIERS IN PLANT SCIENCE 2023; 14:1201730. [PMID: 37457336 PMCID: PMC10347410 DOI: 10.3389/fpls.2023.1201730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/14/2023] [Indexed: 07/18/2023]
Abstract
Salt Overly Sensitive 1 (SOS1) is one of the members of the Salt Overly Sensitive (SOS) signaling pathway and plays critical salt tolerance determinant in plants, while the characterization of the SOS1 family in potato (Solanum tuberosum) is lacking. In this study, 37 StSOS1s were identified and found to be unevenly distributed across 10 chromosomes, with most of them located on the plasma membrane. Promoter analysis revealed that the majority of these StSOS1 genes contain abundant cis-elements involved in various abiotic stress responses. Tissue specific expression showed that 21 of the 37 StSOS1s were widely expressed in various tissues or organs of the potato. Molecular interaction network analysis suggests that 25 StSOS1s may interact with other proteins involved in potassium ion transmembrane transport, response to salt stress, and cellular processes. In addition, collinearity analysis showed that 17, 8, 1 and 5 of orthologous StSOS1 genes were paired with those in tomato, pepper, tobacco, and Arabidopsis, respectively. Furthermore, RT-qPCR results revealed that the expression of StSOS1s were significant modulated by various abiotic stresses, in particular salt and abscisic acid stress. Furthermore, subcellular localization in Nicotiana benthamiana suggested that StSOS1-13 was located on the plasma membrane. These results extend the comprehensive overview of the StSOS1 gene family and set the stage for further analysis of the function of genes in SOS and hormone signaling pathways.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Gang Gao
- *Correspondence: Gang Gao, ; Weizhong Liu,
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11
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Popova LG, Khramov DE, Nedelyaeva OI, Volkov VS. Yeast Heterologous Expression Systems for the Study of Plant Membrane Proteins. Int J Mol Sci 2023; 24:10768. [PMID: 37445944 DOI: 10.3390/ijms241310768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Researchers are often interested in proteins that are present in cells in small ratios compared to the total amount of proteins. These proteins include transcription factors, hormones and specific membrane proteins. However, sufficient amounts of well-purified protein preparations are required for functional and structural studies of these proteins, including the creation of artificial proteoliposomes and the growth of protein 2D and 3D crystals. This aim can be achieved by the expression of the target protein in a heterologous system. This review describes the applications of yeast heterologous expression systems in studies of plant membrane proteins. An initial brief description introduces the widely used heterologous expression systems of the baker's yeast Saccharomyces cerevisiae and the methylotrophic yeast Pichia pastoris. S. cerevisiae is further considered a convenient model system for functional studies of heterologously expressed proteins, while P. pastoris has the advantage of using these yeast cells as factories for producing large quantities of proteins of interest. The application of both expression systems is described for functional and structural studies of membrane proteins from plants, namely, K+- and Na+-transporters, various ATPases and anion transporters, and other transport proteins.
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Affiliation(s)
- Larissa G Popova
- K.A. Timiryazev Institute of Plant Physiology RAS, 127276 Moscow, Russia
| | - Dmitrii E Khramov
- K.A. Timiryazev Institute of Plant Physiology RAS, 127276 Moscow, Russia
| | - Olga I Nedelyaeva
- K.A. Timiryazev Institute of Plant Physiology RAS, 127276 Moscow, Russia
| | - Vadim S Volkov
- K.A. Timiryazev Institute of Plant Physiology RAS, 127276 Moscow, Russia
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12
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Li J, Shen L, Han X, He G, Fan W, Li Y, Yang S, Zhang Z, Yang Y, Jin W, Wang Y, Zhang W, Guo Y. Phosphatidic acid-regulated SOS2 controls sodium and potassium homeostasis in Arabidopsis under salt stress. EMBO J 2023; 42:e112401. [PMID: 36811145 PMCID: PMC10106984 DOI: 10.15252/embj.2022112401] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/24/2023] Open
Abstract
The maintenance of sodium/potassium (Na+ /K+ ) homeostasis in plant cells is essential for salt tolerance. Plants export excess Na+ out of cells mainly through the Salt Overly Sensitive (SOS) pathway, activated by a calcium signal; however, it is unknown whether other signals regulate the SOS pathway and how K+ uptake is regulated under salt stress. Phosphatidic acid (PA) is emerging as a lipid signaling molecule that modulates cellular processes in development and the response to stimuli. Here, we show that PA binds to the residue Lys57 in SOS2, a core member of the SOS pathway, under salt stress, promoting the activity and plasma membrane localization of SOS2, which activates the Na+ /H+ antiporter SOS1 to promote the Na+ efflux. In addition, we reveal that PA promotes the phosphorylation of SOS3-like calcium-binding protein 8 (SCaBP8) by SOS2 under salt stress, which attenuates the SCaBP8-mediated inhibition of Arabidopsis K+ transporter 1 (AKT1), an inward-rectifying K+ channel. These findings suggest that PA regulates the SOS pathway and AKT1 activity under salt stress, promoting Na+ efflux and K+ influx to maintain Na+ /K+ homeostasis.
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Affiliation(s)
- Jianfang Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Like Shen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Life SciencesNanjing Agricultural UniversityNanjingChina
| | - Xiuli Han
- School of Life Sciences and MedicineShandong University of TechnologyZiboChina
| | - Gefeng He
- State Key Laboratory of Plant Environmental Resilience, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Wenxia Fan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Life SciencesNanjing Agricultural UniversityNanjingChina
| | - Yu Li
- State Key Laboratory of Agrobiotechnology, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Shiping Yang
- State Key Laboratory of Plant Environmental Resilience, College of Biological SciencesChina Agricultural UniversityBeijingChina
- State Key Laboratory of Agrobiotechnology, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Ziding Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Yongqing Yang
- State Key Laboratory of Plant Environmental Resilience, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Weiwei Jin
- State Key Laboratory of Plant Environmental Resilience, College of Biological SciencesChina Agricultural UniversityBeijingChina
- National Maize Improvement Center of China and Center for Crop Functional Genomics and Molecular BreedingChina Agricultural UniversityBeijingChina
| | - Yi Wang
- State Key Laboratory of Plant Environmental Resilience, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Wenhua Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Life SciencesNanjing Agricultural UniversityNanjingChina
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, College of Biological SciencesChina Agricultural UniversityBeijingChina
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13
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Alfatih A, Zhang J, Song Y, Jan SU, Zhang ZS, Xia JQ, Zhang ZY, Nazish T, Wu J, Zhao PX, Xiang CB. Nitrate-responsive OsMADS27 promotes salt tolerance in rice. PLANT COMMUNICATIONS 2023; 4:100458. [PMID: 36199247 PMCID: PMC10030316 DOI: 10.1016/j.xplc.2022.100458] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/08/2022] [Accepted: 10/03/2022] [Indexed: 05/04/2023]
Abstract
Salt stress is a major constraint on plant growth and yield. Nitrogen (N) fertilizers are known to alleviate salt stress. However, the underlying molecular mechanisms remain unclear. Here, we show that nitrate-dependent salt tolerance is mediated by OsMADS27 in rice. The expression of OsMADS27 is specifically induced by nitrate. The salt-inducible expression of OsMADS27 is also nitrate dependent. OsMADS27 knockout mutants are more sensitive to salt stress than the wild type, whereas OsMADS27 overexpression lines are more tolerant. Transcriptomic analyses revealed that OsMADS27 upregulates the expression of a number of known stress-responsive genes as well as those involved in ion homeostasis and antioxidation. We demonstrate that OsMADS27 directly binds to the promoters of OsHKT1.1 and OsSPL7 to regulate their expression. Notably, OsMADS27-mediated salt tolerance is nitrate dependent and positively correlated with nitrate concentration. Our results reveal the role of nitrate-responsive OsMADS27 and its downstream target genes in salt tolerance, providing a molecular mechanism for the enhancement of salt tolerance by nitrogen fertilizers in rice. OsMADS27 overexpression increased grain yield under salt stress in the presence of sufficient nitrate, suggesting that OsMADS27 is a promising candidate for the improvement of salt tolerance in rice.
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Affiliation(s)
- Alamin Alfatih
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui Province 230027, China
| | - Jing Zhang
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui Province 230027, China
| | - Ying Song
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui Province 230027, China
| | - Sami Ullah Jan
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui Province 230027, China
| | - Zi-Sheng Zhang
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui Province 230027, China
| | - Jin-Qiu Xia
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui Province 230027, China
| | - Zheng-Yi Zhang
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui Province 230027, China
| | - Tahmina Nazish
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui Province 230027, China
| | - Jie Wu
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui Province 230027, China.
| | - Ping-Xia Zhao
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui Province 230027, China.
| | - Cheng-Bin Xiang
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui Province 230027, China.
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14
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Haxim Y, Wang L, Pan Z, Fan X, Ma J. A novel high-affinity potassium transporter SeHKT1;2 from halophyte Salicornia europaea shows strong selectivity for Na + rather than K . FRONTIERS IN PLANT SCIENCE 2023; 14:1104070. [PMID: 36890895 PMCID: PMC9986455 DOI: 10.3389/fpls.2023.1104070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
High-affinity K+ transporters (HKTs) are known as transmembrane cation transporters and are involved in Na+ or Na+-K+ transport in plants. In this study, a novel HKT gene SeHKT1;2 was isolated and characterized from the halophyte, Salicornia europaea. It belongs to subfamily I of HKT and shows high homology with other halophyte HKT proteins. Functional characterization of SeHKT1;2 indicated that it contributes to facilitating Na+ uptake in Na+-sensitive yeast strains G19, however, cannot rescue the K+ uptake-defective phenotype of yeast strain CY162, demonstrating SeHKT1;2 selectively transports Na+ rather than K+. The addition of K+ along with NaCl relieved the Na+ sensitivity. Furthermore, heterologous expression of SeHKT1;2 in sos1 mutant of Arabidopsis thaliana increased salt sensitivity and could not rescued the transgenic plants. This study will provide valuable gene resources for improving the salt tolerance in other crops by genetic engineering.
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Affiliation(s)
- Yakupjan Haxim
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, China
- Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, China
- Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, China
| | - Lei Wang
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, China
| | - Zhendong Pan
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, China
- Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, China
| | - Xiaorong Fan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, MOA Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Nanjing Agricultural University, Nanjing, China
| | - Jinbiao Ma
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, China
- Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, China
- Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, China
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15
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Salinity-Induced Cytosolic Alkaline Shifts in Arabidopsis Roots Require the SOS Pathway. Int J Mol Sci 2023; 24:ijms24043549. [PMID: 36834961 PMCID: PMC9960406 DOI: 10.3390/ijms24043549] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/27/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
Plants have evolved elaborate mechanisms to sense, respond to and overcome the detrimental effects of high soil salinity. The role of calcium transients in salinity stress signaling is well established, but the physiological significance of concurrent salinity-induced changes in cytosolic pH remains largely undefined. Here, we analyzed the response of Arabidopsis roots expressing the genetically encoded ratiometric pH-sensor pHGFP fused to marker proteins for the recruitment of the sensor to the cytosolic side of the tonoplast (pHGFP-VTI11) and the plasma membrane (pHGFP-LTI6b). Salinity elicited a rapid alkalinization of cytosolic pH (pHcyt) in the meristematic and elongation zone of wild-type roots. The pH-shift near the plasma membrane preceded that at the tonoplast. In pH-maps transversal to the root axis, the epidermis and cortex had cells with a more alkaline pHcyt relative to cells in the stele in control conditions. Conversely, seedlings treated with 100 mM NaCl exhibited an increased pHcyt in cells of the vasculature relative to the external layers of the root, and this response occurred in both reporter lines. These pHcyt changes were substantially reduced in mutant roots lacking a functional SOS3/CBL4 protein, suggesting that the operation of the SOS pathway mediated the dynamics of pHcyt in response to salinity.
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16
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Tian R, Sun X, Liu C, Chu J, Zhao M, Zhang WH. A Medicago truncatula lncRNA MtCIR1 negatively regulates response to salt stress. PLANTA 2023; 257:32. [PMID: 36602592 DOI: 10.1007/s00425-022-04064-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
A lncRNA MtCIR1 negatively regulates the response to salt stress in Medicago truncatula seed germination by modulating seedling growth and ABA metabolism and signaling by enhancing Na+ accumulation. Increasing evidence suggests that long non-coding RNAs (lncRNAs) are involved in the regulation of plant tolerance to varying abiotic stresses. A large number of lncRNAs that are responsive to abiotic stress have been identified in plants; however, the mechanisms underlying the regulation of plant responses to abiotic stress by lncRNAs are largely unclear. Here, we functionally characterized a salt stress-responsive lncRNA derived from the leguminous model plant M. truncatula, referred to as MtCIR1, by expressing MtCIR1 in Arabidopsis thaliana in which no such homologous sequence was observed. Expression of MtCIR1 rendered seed germination more sensitive to salt stress by enhanced accumulation of abscisic acid (ABA) due to suppressing the expression of the ABA catabolic enzyme CYP707A2. Expression of MtCIR1 also suppressed the expression of genes associated with ABA receptors and signaling. The ABA-responsive gene AtPGIP2 that was involved in degradation of cell wall during seed germination was up-regulated by expressing MtCIR1. On the other hand, expression of MtCIR1 in Arabidopsis thaliana enhanced foliar Na+ accumulation by down-regulating genes encoding Na+ transporters, thus rendering the transgenic plants more sensitive to salt stress. These results demonstrate that the M. truncatula lncRNA MtCIR1 negatively regulates salt stress response by targeting ABA metabolism and signaling during seed germination and foliar Na+ accumulation by affecting Na+ transport under salt stress during seedling growth. These novel findings would advance our knowledge on the regulatory roles of lncRNAs in response of plants to salt stress.
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Affiliation(s)
- Rui Tian
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, People's Republic of China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Xiaohan Sun
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, People's Republic of China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Cuimei Liu
- National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Jinfang Chu
- National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100039, People's Republic of China
| | - Mingui Zhao
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, People's Republic of China.
| | - Wen-Hao Zhang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, People's Republic of China.
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
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17
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Park HJ, Gámez-Arjona FM, Lindahl M, Aman R, Villalta I, Cha JY, Carranco R, Lim CJ, García E, Bressan RA, Lee SY, Valverde F, Sánchez-Rodríguez C, Pardo JM, Kim WY, Quintero FJ, Yun DJ. S-acylated and nucleus-localized SALT OVERLY SENSITIVE3/CALCINEURIN B-LIKE4 stabilizes GIGANTEA to regulate Arabidopsis flowering time under salt stress. THE PLANT CELL 2023; 35:298-317. [PMID: 36135824 PMCID: PMC9806564 DOI: 10.1093/plcell/koac289] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 09/16/2022] [Indexed: 05/15/2023]
Abstract
The precise timing of flowering in adverse environments is critical for plants to secure reproductive success. We report a mechanism in Arabidopsis (Arabidopsis thaliana) controlling the time of flowering by which the S-acylation-dependent nuclear import of the protein SALT OVERLY SENSITIVE3/CALCINEURIN B-LIKE4 (SOS3/CBL4), a Ca2+-signaling intermediary in the plant response to salinity, results in the selective stabilization of the flowering time regulator GIGANTEA inside the nucleus under salt stress, while degradation of GIGANTEA in the cytosol releases the protein kinase SOS2 to achieve salt tolerance. S-acylation of SOS3 was critical for its nuclear localization and the promotion of flowering, but partly dispensable for salt tolerance. SOS3 interacted with the photoperiodic flowering components GIGANTEA and FLAVIN-BINDING, KELCH REPEAT, F-BOX1 and participated in the transcriptional complex that regulates CONSTANS to sustain the transcription of CO and FLOWERING LOCUS T under salinity. Thus, the SOS3 protein acts as a Ca2+- and S-acylation-dependent versatile regulator that fine-tunes flowering time in a saline environment through the shared spatial separation and selective stabilization of GIGANTEA, thereby connecting two signaling networks to co-regulate the stress response and the time of flowering.
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Affiliation(s)
| | | | - Marika Lindahl
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and Universidad de Sevilla, Seville 41092, Spain
| | - Rashid Aman
- Division of Applied Life Science (BK21plus Program), Research Institute of Life Sciences, Plant Molecular Biology and Biotechnology Research Center, Graduate School of Gyeongsang National University, Jinju 52828, South Korea
| | - Irene Villalta
- Institut de Recherche sur la Biologie de l’Insecte, Université de Tours, 37200 Tours, France
| | - Joon-Yung Cha
- Division of Applied Life Science (BK21plus Program), Research Institute of Life Sciences, Plant Molecular Biology and Biotechnology Research Center, Graduate School of Gyeongsang National University, Jinju 52828, South Korea
| | - Raul Carranco
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and Universidad de Sevilla, Seville 41092, Spain
| | - Chae Jin Lim
- Department of Biomedical Science and Engineering, Konkuk University, Seoul 05029, South Korea
| | - Elena García
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and Universidad de Sevilla, Seville 41092, Spain
| | - Ray A Bressan
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana 47907, USA
| | - Sang Yeol Lee
- Division of Applied Life Science (BK21plus Program), Research Institute of Life Sciences, Plant Molecular Biology and Biotechnology Research Center, Graduate School of Gyeongsang National University, Jinju 52828, South Korea
| | - Federico Valverde
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and Universidad de Sevilla, Seville 41092, Spain
| | | | - Jose M Pardo
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and Universidad de Sevilla, Seville 41092, Spain
| | - Woe-Yeon Kim
- Author for correspondence: (D.-J.Y.); (F.J.Q.); (W.-Y.K.)
| | | | - Dae-Jin Yun
- Author for correspondence: (D.-J.Y.); (F.J.Q.); (W.-Y.K.)
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18
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Li W, Luo L, Gu L, Li H, Zhang Q, Ye Y, Li L. Vacuolar H + -ATPase subunit VAB3 regulates cell growth and ion homeostasis in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 112:664-676. [PMID: 36069460 DOI: 10.1111/tpj.15971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 09/03/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
Vacuolar H+ -ATPase (V-ATPase) has diverse functions related to plant development and growth. It creates the turgor pressure that drives cell growth by generating the energy needed for the active transport of solutes across the tonoplast. V-ATPase is a large protein complex made up of multiheteromeric subunits, some of which have unknown functions. In this study, a forward genetics-based strategy was employed to identify the vab3 mutant, which displayed resistance to isoxaben, a cellulose synthase inhibitor that could induce excessive transverse cell expansion. Map-based cloning and genetic complementary assays demonstrated that V-ATPase B subunit 3 (VAB3) is associated with the observed insensitivity of the mutant to isoxaben. Analysis of the vab3 mutant revealed defective ionic homeostasis and hypersensitivity to salt stress. Treatment with a V-ATPase inhibitor exacerbated ionic tolerance and cell elongation defects in the vab3 mutant. Notably, exogenous low-dose Ca2+ or Na+ could partially restore isoxaben resistance of the vab3 mutant, suggesting a relationship between VAB3-regulated cell growth and ion homeostasis. Taken together, the results of this study suggest that the V-ATPase subunit VAB3 is required for cell growth and ion homeostasis in Arabidopsis.
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Affiliation(s)
- Wenbo Li
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Laifu Luo
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Lili Gu
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Haimin Li
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Qian Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yajin Ye
- Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education of China; Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Laigeng Li
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
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19
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Han QQ, Wang YP, Li J, Li J, Yin XC, Jiang XY, Yu M, Wang SM, Shabala S, Zhang JL. The mechanistic basis of sodium exclusion in Puccinellia tenuiflora under conditions of salinity and potassium deprivation. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 112:322-338. [PMID: 35979653 DOI: 10.1111/tpj.15946] [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: 12/29/2021] [Revised: 07/29/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
Soil salinity is a significant threat to global agriculture. Understanding salt exclusion mechanisms in halophyte species may be instrumental in improving salt tolerance in crops. Puccinellia tenuiflora is a typical salt-excluding halophytic grass often found in potassium-deprived saline soils. Our previous work showed that P. tenuiflora possesses stronger selectivity for K+ than for Na+ ; however, the mechanistic basis of this phenomenon remained elusive. Here, P. tenuiflora PutHKT1;5 was cloned and the functions of PutHKT1;5 and PutSOS1 were characterized using heterologous expression systems. Yeast assays showed that PutHKT1;5 possessed Na+ transporting capacity and was highly selective for Na+ over K+ . PutSOS1 was located at the plasma membrane and operated as a Na+ /K+ exchanger, with much stronger Na+ extrusion capacity than its homolog from Arabidopsis. PutHKT2;1 mediated high-affinity K+ and Na+ uptake and its expression levels were upregulated by mild salinity and K+ deprivation. Salinity-induced changes of root PutHKT1;5 and PutHKT1;4 transcript levels matched the expression pattern of root PutSOS1, which was consistent with root Na+ efflux. The transcript levels of root PutHKT2;1 and PutAKT1 were downregulated by salinity. Taken together, these findings demonstrate that the functional activity of PutHKT1;5 and PutSOS1 in P. tenuiflora roots is fine-tuned under saline conditions as well as by operation of other ion transporters/channel (PutHKT1;4, PutHKT2;1, and PutAKT1). This leads to the coordination of radial Na+ and K+ transport processes, their loading to the xylem, or Na+ retrieval and extrusion under conditions of mild salinity and/or K+ deprivation.
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Affiliation(s)
- Qing-Qing Han
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, P. R. China
| | - Yong-Ping Wang
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, P. R. China
| | - Jian Li
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, P. R. China
| | - Jing Li
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, P. R. China
| | - Xiao-Chang Yin
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, P. R. China
| | - Xing-Yu Jiang
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, P. R. China
| | - Min Yu
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, 528000, P. R. China
| | - Suo-Min Wang
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, P. R. China
| | - Sergey Shabala
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, P. R. China
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, 528000, P. R. China
- Tasmanian Institute of Agriculture, University of Tasmania, Private Bag 54, Hobart, TAS 7001, Australia
- School of Biological Sciences, The University of Western Australia, Perth, WA 6009, Australia
| | - Jin-Lin Zhang
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, P. R. China
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, 528000, P. R. China
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20
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Steinhorst L, He G, Moore LK, Schültke S, Schmitz-Thom I, Cao Y, Hashimoto K, Andrés Z, Piepenburg K, Ragel P, Behera S, Almutairi BO, Batistič O, Wyganowski T, Köster P, Edel KH, Zhang C, Krebs M, Jiang C, Guo Y, Quintero FJ, Bock R, Kudla J. A Ca 2+-sensor switch for tolerance to elevated salt stress in Arabidopsis. Dev Cell 2022; 57:2081-2094.e7. [PMID: 36007523 DOI: 10.1016/j.devcel.2022.08.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 06/03/2022] [Accepted: 08/04/2022] [Indexed: 12/20/2022]
Abstract
Excessive Na+ in soils inhibits plant growth. Here, we report that Na+ stress triggers primary calcium signals specifically in a cell group within the root differentiation zone, thus forming a "sodium-sensing niche" in Arabidopsis. The amplitude of this primary calcium signal and the speed of the resulting Ca2+ wave dose-dependently increase with rising Na+ concentrations, thus providing quantitative information about the stress intensity encountered. We also delineate a Ca2+-sensing mechanism that measures the stress intensity in order to mount appropriate salt detoxification responses. This is mediated by a Ca2+-sensor-switch mechanism, in which the sensors SOS3/CBL4 and CBL8 are activated by distinct Ca2+-signal amplitudes. Although the SOS3/CBL4-SOS2/CIPK24-SOS1 axis confers basal salt tolerance, the CBL8-SOS2/CIPK24-SOS1 module becomes additionally activated only in response to severe salt stress. Thus, Ca2+-mediated translation of Na+ stress intensity into SOS1 Na+/H+ antiporter activity facilitates fine tuning of the sodium extrusion capacity for optimized salt-stress tolerance.
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Affiliation(s)
- Leonie Steinhorst
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Gefeng He
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Lena K Moore
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Stefanie Schültke
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Ina Schmitz-Thom
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Yibo Cao
- State Key Laboratory of Plant Physiology and Biochemistry (SKLPPB), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Kenji Hashimoto
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Zaida Andrés
- Instituto de Biología Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Cientificas, 41092 Seville, Spain
| | - Katrin Piepenburg
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam, Germany
| | - Paula Ragel
- Instituto de Biología Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Cientificas, 41092 Seville, Spain
| | - Smrutisanjita Behera
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Bader O Almutairi
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Oliver Batistič
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Thomas Wyganowski
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Philipp Köster
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Kai H Edel
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Chunxia Zhang
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Melanie Krebs
- Department of Plant Developmental Biology, Centre for Organismal Studies, Heidelberg University, 69120 Heidelberg, Germany
| | - Caifu Jiang
- State Key Laboratory of Plant Physiology and Biochemistry (SKLPPB), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yan Guo
- State Key Laboratory of Plant Physiology and Biochemistry (SKLPPB), College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Francisco J Quintero
- Instituto de Biología Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Cientificas, 41092 Seville, Spain
| | - Ralph Bock
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam, Germany
| | - Jörg Kudla
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany.
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21
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Al-Elwany OAAI, Hemida KA, Abdel-Razek MA, El-Mageed TAA, El-Saadony MT, AbuQamar SF, El-Tarabily KA, Taha RS. Impact of Folic Acid in Modulating Antioxidant Activity, Osmoprotectants, Anatomical Responses, and Photosynthetic Efficiency of Plectranthus amboinicus Under Salinity Conditions. FRONTIERS IN PLANT SCIENCE 2022; 13:887091. [PMID: 35968108 PMCID: PMC9367479 DOI: 10.3389/fpls.2022.887091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Salinity is a major threat to the sustainability of agricultural production systems. Salt stress has unfavorable implications on various plant physio-morphological and biochemical reactions, causing osmotic and ionic stress. Exogenously applied folic acid (FA) may at least provide one mechanism to evade the injurious stress effects of saline irrigation water on Plectranthus amboinicus. In this regard, two pot trials were performed during the 2018-2019 and 2019-2020 seasons in an open greenhouse of an experimental farm (29°17'N; 30°53'E) in Fayoum, Egypt. We tested four levels of saline irrigation water (SW): 34, 68, and 102 mM NaCl, plus tap water as the control = 0), combined with FA at three concentrations (25 and 50 μM, plus spray with distilled water as the control = 0). The growth parameters, biochemistry, physiology, elemental leaf status, essential oil content, and anatomical responses were assessed. Salt markedly reduced photosynthetic productivity [Fv/Fm and performance index (PI)], total chlorophyll [soil plant analysis development (SPAD)], and leaf osmoprotectant compounds, i.e., total soluble sugars (TSS), free amino acids, proline, and total phenolics, thus hampering P. amboinicus growth and essential oil yield. However, the addition of FA as a foliar spray to P. amboinicus irrigated with saline water induced increases in Fv/Fm, SPAD, and PI. These were linked with enriched stem anatomical structures, leaf osmoprotectant compounds, and enhanced leaf enzymatic activity, e.g., superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase, glutathione, ascorbic acid, and antioxidant content. Under salt stress, supplementation of 25 and 50 μM FA increased the growth and production of essential oil by 27.8 and 55.6%, respectively, compared with no applied FA. The highest growth characteristics and elemental leaf contents were obtained when P. amboinicus was irrigated with 0 mM saline water and treated foliarly with 50 μM of FA compared with non-treated plants. Overall, these data showed that foliar spraying with FA reduces the impact of salt stress on P. amboinicus irrigated with saline water.
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Affiliation(s)
| | | | | | | | - Mohamed T. El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Synan F. AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Khaled A. El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
- Khalifa Center for Genetic Engineering and Biotechnology, United Arab Emirates University, Al-Ain, United Arab Emirates
- Harry Butler Institute, Murdoch University, Murdoch, WA, Australia
| | - Ragab S. Taha
- Botany Department, Faculty of Agriculture, Beni-Suef University, Beni-Suef, Egypt
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22
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DeTar RA, Höhner R, Manavski N, Blackholm M, Meurer J, Kunz HH. Loss of SALT OVERLY SENSITIVE 1 prevents virescence in chloroplast K+/H+ EFFLUX ANTIPORTER-deficient mutants. PLANT PHYSIOLOGY 2022; 189:1220-1225. [PMID: 35325208 PMCID: PMC9237680 DOI: 10.1093/plphys/kiac142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
Defects in two plastid K+/H+ EFFLUX ANTIPORTERs in Arabidopsis can be relieved by loss of a plasma membrane Na+/H+ exchanger, presumably by altering plant K+ transport.
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Affiliation(s)
- Rachael Ann DeTar
- Plant Physiology, School of Biological Sciences, Washington State University, PO Box 644236, Pullman, Washington 99164-4236, USA
- LMU Munich, Plant Sciences, Großhaderner Str. 2-4, 82152 Planegg-Martinsried, Germany
| | - Ricarda Höhner
- Plant Physiology, School of Biological Sciences, Washington State University, PO Box 644236, Pullman, Washington 99164-4236, USA
| | - Nikolay Manavski
- LMU Munich, Plant Sciences, Großhaderner Str. 2-4, 82152 Planegg-Martinsried, Germany
| | - Marius Blackholm
- LMU Munich, Plant Sciences, Großhaderner Str. 2-4, 82152 Planegg-Martinsried, Germany
| | - Jörg Meurer
- LMU Munich, Plant Sciences, Großhaderner Str. 2-4, 82152 Planegg-Martinsried, Germany
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23
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Ma L, Liu X, Lv W, Yang Y. Molecular Mechanisms of Plant Responses to Salt Stress. FRONTIERS IN PLANT SCIENCE 2022; 13:934877. [PMID: 35832230 PMCID: PMC9271918 DOI: 10.3389/fpls.2022.934877] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 05/23/2022] [Indexed: 06/12/2023]
Abstract
Saline-alkali soils pose an increasingly serious global threat to plant growth and productivity. Much progress has been made in elucidating how plants adapt to salt stress by modulating ion homeostasis. Understanding the molecular mechanisms that affect salt tolerance and devising strategies to develop/breed salt-resilient crops have been the primary goals of plant salt stress signaling research over the past few decades. In this review, we reflect on recent major advances in our understanding of the cellular and physiological mechanisms underlying plant responses to salt stress, especially those involving temporally and spatially defined changes in signal perception, decoding, and transduction in specific organelles or cells.
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Affiliation(s)
- Liang Ma
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xiaohong Liu
- Department of Art and Design, Taiyuan University, Taiyuan, China
| | - Wanjia Lv
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yongqing Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
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24
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Viviani A, Spada M, Giordani T, Fambrini M, Pugliesi C. Origin of the genome editing systems: application for crop improvement. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01142-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Xie Q, Zhou Y, Jiang X. Structure, Function, and Regulation of the Plasma Membrane Na +/H + Antiporter Salt Overly Sensitive 1 in Plants. FRONTIERS IN PLANT SCIENCE 2022; 13:866265. [PMID: 35432437 PMCID: PMC9009148 DOI: 10.3389/fpls.2022.866265] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/08/2022] [Indexed: 05/24/2023]
Abstract
Physiological studies have confirmed that export of Na+ to improve salt tolerance in plants is regulated by the combined activities of a complex transport system. In the Na+ transport system, the Na+/H+ antiporter salt overly sensitive 1 (SOS1) is the main protein that functions to excrete Na+ out of plant cells. In this paper, we review the structure and function of the Na+/H+ antiporter and the physiological process of Na+ transport in SOS signaling pathway, and discuss the regulation of SOS1 during phosphorylation activation by protein kinase and the balance mechanism of inhibiting SOS1 antiporter at molecular and protein levels. In addition, we carried out phylogenetic tree analysis of SOS1 proteins reported so far in plants, which implied the specificity of salt tolerance mechanism from model plants to higher crops under salt stress. Finally, the high complexity of the regulatory network of adaptation to salt tolerance, and the feasibility of coping strategies in the process of genetic improvement of salt tolerance quality of higher crops were reviewed.
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Affiliation(s)
- Qing Xie
- National Innovation Center for Technology of Saline-Alkaline Tolerant Rice/College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
- Hainan Key Laboratory for Biotechnology of Salt Tolerant Crops/School of Horticulture, Hainan University, Haikou, China
| | - Yang Zhou
- Hainan Key Laboratory for Biotechnology of Salt Tolerant Crops/School of Horticulture, Hainan University, Haikou, China
| | - Xingyu Jiang
- National Innovation Center for Technology of Saline-Alkaline Tolerant Rice/College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
- Hainan Key Laboratory for Biotechnology of Salt Tolerant Crops/School of Horticulture, Hainan University, Haikou, China
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26
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Decreased Solution pH and Increased K+ Uptake Are Related to Ammonium Tolerance in Hydroponically Cultured Plants. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8030228] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The ammonium (NH4+) tolerance of plants is an important issue in agriculture, associated with several plant characteristics. So far, plant tissue acidification has been shown as the primary cause of NH4+ toxicity. Suppressed plant growth caused by excess NH4+ can be counteracted by potassium (K+) application. However, the effects of NH4+ tolerances on the differences regarding pH changes together with K+ uptake remain to be determined. Here, we performed an 84 h hydroponic cultivation of five species with different NH4+ tolerances, subjected to three NH4+:NO3− solutions (0:100, 50:50, or 100:0), to investigate the pH changes and ion uptakes. Consequently, the solution pH was lowered over time to varying extents in the presence of NH4+. The NH4+-tolerant ageratum and lettuce, shown to be tolerant to NH4+ in this trial, rapidly lowered the solution pH, whereas extremely NH4+-sensitive salvia and cabbage only gave a minor decrease in the solution pH when grown with 100:0 NH4+:NO3−. Additionally, the increased external NH4+ level led to a substantial decline in the net cation influxes (K+, Ca2+, and Mg2+). As compared to solely NH4+-fed salvia and cabbage, solely NH4+-fed ageratum and lettuce ultimately showed a relatively greater net K+ influx. Taken together, this study discusses how the decreases in pH and K+ are related to NH4+ tolerance in five hydroponically cultured species.
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27
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Mahmood MZ, Bibi S, Shahzad M, Fakhar A, Rafique M, Qayyum A. Mechanisms of microbes to combat salinity in soil by producing secondary metabolites. ARABIAN JOURNAL OF GEOSCIENCES 2021. [DOI: 10.1007/s12517-021-09371-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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28
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Saddhe AA, Mishra AK, Kumar K. Molecular insights into the role of plant transporters in salt stress response. PHYSIOLOGIA PLANTARUM 2021; 173:1481-1494. [PMID: 33963568 DOI: 10.1111/ppl.13453] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/29/2021] [Accepted: 05/06/2021] [Indexed: 05/23/2023]
Abstract
Salt stress disturbs the cellular osmotic and ionic balance, which then creates a negative impact on plant growth and development. The Na+ and Cl- ions can enter into plant cells through various membrane transporters, including specific and non-specific Na+ , K+ , and Ca2+ transporters. Therefore, it is important to understand Na+ and K+ transport mechanisms in plants along with the isolation of genes, their characterization, the structural features, and their post-translation regulation under salt stress. This review summarizes the molecular insights of plant ion transporters, including non-selective cation transporters, cyclic nucleotide-gated cation transporters, glutamate-like receptors, membrane intrinsic proteins, cation proton antiporters, and sodium proton antiporter families. Further, we discussed the K+ transporter families such as high-affinity K+ transporters, HAK/KUP/KT transporters, shaker type K+ transporters, and K+ efflux antiporters. Besides the ion transport process, we have shed light on available literature on epigenetic regulation of transport processes under salt stress. Recent advancements of salt stress sensing mechanisms and various salt sensors within signaling transduction pathways are discussed. Further, we have compiled salt-stress signaling pathways, and their crosstalk with phytohormones.
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Affiliation(s)
- Ankush Ashok Saddhe
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, K. K. Birla Goa Campus, Goa, 403726, India
| | - Ajay Kumar Mishra
- Biology Centre, Czech Academy of Sciences, Department of Molecular Genetics, Institute of Plant Molecular Biology, České Budějovice, Czech Republic
| | - Kundan Kumar
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, K. K. Birla Goa Campus, Goa, 403726, India
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29
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Ali AAM, Romdhane WB, Tarroum M, Al-Dakhil M, Al-Doss A, Alsadon AA, Hassairi A. Analysis of Salinity Tolerance in Tomato Introgression Lines Based on Morpho-Physiological and Molecular Traits. PLANTS 2021; 10:plants10122594. [PMID: 34961065 PMCID: PMC8704676 DOI: 10.3390/plants10122594] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/16/2021] [Accepted: 11/23/2021] [Indexed: 02/07/2023]
Abstract
The development of salt-tolerant tomato genotypes is a basic requirement to overcome the challenges of tomato production under salinity in the field or soil-free farming. Two groups of eight tomato introgression lines (ILs) each, were evaluated for salinity tolerance. Group-I and the group-II resulted from the following crosses respectively: Solanum lycopersicum cv-6203 × Solanum habrochaites and Solanum lycopersicum M82 × Solanum pennellii. Salt tolerance level was assessed based on a germination percentage under NaCl (0, 75, 100 mM) and in the vegetative stage using a hydroponic growing system (0, 120 mM NaCl). One line from group I (TA1648) and three lines from group II (IL2-1, IL2-3, and IL8-3) were shown to be salt-tolerant since their germination percentages were significantly higher at 75 and 100 mM NaCl than that of their respective cultivated parents cvE6203 and cvM82. Using the hydroponic system, IL TA1648 and IL 2-3 showed the highest value of plant growth traits and chlorophyll concentration. The expression level of eight salt-responsive genes in the leaves and roots of salt-tolerant ILs (TA1648 and IL 2-3) was estimated. Interestingly, SlSOS1, SlNHX2, SlNHX4, and SlERF4 genes were upregulated in leaves of both TA1648 and IL 2-3 genotypes under NaCl stress. While SlHKT1.1, SlNHX2, SlNHX4, and SlERF4 genes were upregulated under salt stress in the roots of both TA1648 and IL 2-3 genotypes. Furthermore, SlSOS2 and SlSOS3 genes were upregulated in TA1648 root and downregulated in IL 2-3. On the contrary, SlSOS1 and SlHKT1.2 genes were upregulated in the IL 2-3 root and downregulated in the TA1648 root. Monitoring of ILs revealed that some of them have inherited salt tolerance from S. habrochaites and S. pennellii genetic background. These ILs can be used in tomato breeding programs to develop salt-tolerant tomatoes or as rootstocks in grafting techniques under saline irrigation conditions.
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Affiliation(s)
- Ahmed Abdelrahim Mohamed Ali
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (A.A.M.A.); (W.B.R.); (M.A.-D.); (A.A.-D.); (A.A.A.)
| | - Walid Ben Romdhane
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (A.A.M.A.); (W.B.R.); (M.A.-D.); (A.A.-D.); (A.A.A.)
| | - Mohamed Tarroum
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 11451, Riyadh 11451, Saudi Arabia;
| | - Mohammed Al-Dakhil
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (A.A.M.A.); (W.B.R.); (M.A.-D.); (A.A.-D.); (A.A.A.)
- Natural Resources and Environmental Research Institute, King Abdulaziz City for Science and Technology, Riyadh 11442, Saudi Arabia
| | - Abdullah Al-Doss
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (A.A.M.A.); (W.B.R.); (M.A.-D.); (A.A.-D.); (A.A.A.)
| | - Abdullah A. Alsadon
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (A.A.M.A.); (W.B.R.); (M.A.-D.); (A.A.-D.); (A.A.A.)
| | - Afif Hassairi
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (A.A.M.A.); (W.B.R.); (M.A.-D.); (A.A.-D.); (A.A.A.)
- Centre of Biotechnology of Sfax, University of Sfax, B.P 1177, Sfax 3018, Tunisia
- Correspondence:
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Wang L, Qiu T, Yue J, Guo N, He Y, Han X, Wang Q, Jia P, Wang H, Li M, Wang C, Wang X. Arabidopsis ADF1 is Regulated by MYB73 and is Involved in Response to Salt Stress Affecting Actin Filament Organization. PLANT & CELL PHYSIOLOGY 2021; 62:1387-1395. [PMID: 34086948 DOI: 10.1093/pcp/pcab081] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/26/2021] [Accepted: 06/03/2021] [Indexed: 06/12/2023]
Abstract
Actin cytoskeleton and transcription factors play key roles in plant response to salt stress; however, little is known about the link between the two regulators in response to salt stress. Actin-depolymerizing factors (ADFs) are conserved actin-binding proteins in eukaryotes. Here, we revealed that the expression level of ADF1 was induced by salt stress. The adf1 mutants showed significantly reduced survival rate, increased percentage of actin cable and reduced density of actin filaments, while ADF1 overexpression seedlings displayed the opposite results when compared with WT under the same condition. Furthermore, biochemical assays revealed that MYB73, a R2R3 MYB transcription factor, binds to the promoter of ADF1 and represses its expression via the MYB-binding site core motif ACCTAC. Taken together, our results indicate that ADF1 participates in salt stress by regulating actin organization and may also serve as a potential downstream target of MYB73, which is a negative regulator of salt stress.
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Affiliation(s)
- Lu Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
- College of Horticulture, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Tianqi Qiu
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Jianru Yue
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Nannan Guo
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Yunjian He
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Xueping Han
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Qiuyang Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Pengfei Jia
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Hongdan Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Muzi Li
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Che Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Xianling Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
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31
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Wang Z, Li N, Yu Q, Wang H. Genome-Wide Characterization of Salt-Responsive miRNAs, circRNAs and Associated ceRNA Networks in Tomatoes. Int J Mol Sci 2021; 22:12238. [PMID: 34830118 PMCID: PMC8625345 DOI: 10.3390/ijms222212238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 11/28/2022] Open
Abstract
Soil salinization is a major environmental stress that causes crop yield reductions worldwide. Therefore, the cultivation of salt-tolerant crops is an effective way to sustain crop yield. Tomatoes are one of the vegetable crops that are moderately sensitive to salt stress. Global market demand for tomatoes is huge and growing. In recent years, the mechanisms of salt tolerance in tomatoes have been extensively investigated; however, the molecular mechanism through which non-coding RNAs (ncRNAs) respond to salt stress is not well understood. In this study, we utilized small RNA sequencing and whole transcriptome sequencing technology to identify salt-responsive microRNAs (miRNAs), messenger RNAs (mRNAs), and circular RNAs (circRNAs) in roots of M82 cultivated tomato and Solanum pennellii (S. pennellii) wild tomato under salt stress. Based on the theory of competitive endogenous RNA (ceRNA), we also established several salt-responsive ceRNA networks. The results showed that circRNAs could act as miRNA sponges in the regulation of target mRNAs of miRNAs, thus participating in the response to salt stress. This study provides insights into the mechanisms of salt tolerance in tomatoes and serves as an effective reference for improving the salt tolerance of salt-sensitive cultivars.
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Affiliation(s)
- Zhongyu Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
| | - Ning Li
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China;
- Key Laboratory of Horticulture Crop Genomics and Genetic Improvement in Xinjiang, Urumqi 830091, China
- College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
| | - Qinghui Yu
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China;
| | - Huan Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
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32
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Vaziriyeganeh M, Khan S, Zwiazek JJ. Transcriptome and Metabolome Analyses Reveal Potential Salt Tolerance Mechanisms Contributing to Maintenance of Water Balance by the Halophytic Grass Puccinellia nuttalliana. FRONTIERS IN PLANT SCIENCE 2021; 12:760863. [PMID: 34777443 PMCID: PMC8586710 DOI: 10.3389/fpls.2021.760863] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 09/29/2021] [Indexed: 06/08/2023]
Abstract
Elevated soil salinity exacerbated by human activities and global climate change poses serious threats to plant survival. Although halophytes provide many important clues concerning salt tolerance in plants, some unanswered questions remain to be addressed, including the processes of water and solute transport regulation. We performed high-throughput RNA-sequencing in roots and metabolome characterizations in roots and leaves of Puccinellia nuttalliana halophytic grass subjected to 0 (control) and 150 mM NaCl. In RNAseq, a total of 31 Gb clean bases generated were de novo assembled into 941,894 transcripts. The PIP2;2 and HKT1;5 transcript levels increased in response to the NaCl treatment implying their roles in water and ion homeostasis. Several transcription factors, including WRKY39, DEK3, HY5, and ABF2, were also overexpressed in response to NaCl. The metabolomic analysis revealed that proline and dopamine significantly increased due to the upregulation of the pathway genes under salt stress, likely contributing to salt tolerance mechanisms. Several phosphatidylcholines significantly increased in roots suggesting that the alterations of membrane lipid composition may be an important strategy in P. nuttalliana for maintaining cellular homeostasis and membrane integrity under salt stress. In leaves, the TCA cycle was enriched suggesting enhanced energy metabolism to cope with salt stress. Other features contributing to the ability of P. nuttalliana to survive under high salinity conditions include salt secretion by the salt glands and enhanced cell wall lignification of the root cells. While most of the reported transcriptomic, metabolomics, and structural alterations may have consequences to water balance maintenance by plants under salinity stress, the key processes that need to be further addressed include the role of the changes in the aquaporin gene expression profiles in the earlier reported enhancement of the aquaporin-mediated root water transport.
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Affiliation(s)
| | | | - Janusz J. Zwiazek
- Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada
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Kumari S, Chhillar H, Chopra P, Khanna RR, Khan MIR. Potassium: A track to develop salinity tolerant plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 167:1011-1023. [PMID: 34598021 DOI: 10.1016/j.plaphy.2021.09.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 09/10/2021] [Accepted: 09/24/2021] [Indexed: 05/24/2023]
Abstract
Salinity is one of the major constraints to plant growth and development across the globe that leads to the huge crop productivity loss. Salinity stress causes impairment in plant's metabolic and cellular processes including disruption in ionic homeostasis due to excess of sodium (Na+) ion influx and potassium (K+) efflux. This condition subsequently results in a significant reduction of the cytosolic K+ levels, eventually inhibiting plant growth attributes. K+ plays a crucial role in alleviating salinity stress by recasting key processes of plants. In addition, K+ acquisition and retention also serve as the perquisite trait to establish salt tolerant mechanism. In addition, an intricate network of genes and their regulatory elements are involved in coordinating salinity stress responses. Furthermore, plant growth regulators (PGRs) and other signalling molecules influence K+-mediated salinity tolerance in plants. Recently, nanoparticles (NPs) have also been found several implications in plants with respect to their roles in mediating K+ homoeostasis during salinity stress in plants. The present review describes salinity-induced adversities in plants and role of K+ in mitigating salinity-induced damages. The review also highlights the efficacy of PGRs and other signalling molecules in regulating K+ mediated salinity tolerance along with nano-technological perspective for improving K+ mediated salinity tolerance in plants.
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Affiliation(s)
- Sarika Kumari
- Department of Botany, Jamia Hamdard, New Delhi-110062, India
| | | | - Priyanka Chopra
- Department of Botany, Jamia Hamdard, New Delhi-110062, India
| | | | - M Iqbal R Khan
- Department of Botany, Jamia Hamdard, New Delhi-110062, India.
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34
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Ródenas R, Vert G. Regulation of Root Nutrient Transporters by CIPK23: 'One Kinase to Rule Them All'. PLANT & CELL PHYSIOLOGY 2021; 62:553-563. [PMID: 33367898 DOI: 10.1093/pcp/pcaa156] [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: 09/25/2020] [Accepted: 11/27/2020] [Indexed: 05/21/2023]
Abstract
Protein kinases constitute essential regulatory components in the majority of cellular processes in eukaryotic cells. The CBL-INTERACTING PROTEIN KINASE (CIPK) family of plant protein kinases functions in calcium (Ca2+)-related signaling pathways and is therefore involved in the response to a wide variety of signals in plants. By covalently linking phosphate groups to their target proteins, CIPKs regulate the activity of downstream targets, their localization, their stability and their ability to interact with other proteins. In Arabidopsis, the CIPK23 kinase has emerged as a major hub driving root responses to diverse environmental stresses, including drought, salinity and nutrient imbalances, such as potassium, nitrate and iron deficiencies, as well as ammonium, magnesium and non-iron metal toxicities. This review will chiefly report on the prominent roles of CIPK23 in the regulation of plant nutrient transporters and on the underlying molecular mechanisms. We will also discuss the different scenarios explaining how a single promiscuous kinase, such as CIPK23, may convey specific responses to a myriad of signals.
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Affiliation(s)
- Reyes Ródenas
- Plant Science Research Laboratory (LRSV), UMR5546, CNRS, Université Toulouse 3, 24 Chemin de Borde Rouge, 31320 Auzeville Tolosane, France
| | - Grégory Vert
- Plant Science Research Laboratory (LRSV), UMR5546, CNRS, Université Toulouse 3, 24 Chemin de Borde Rouge, 31320 Auzeville Tolosane, France
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35
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Bhattarai S, Liu N, Karunakaran C, Tanino KK, Fu YB, Coulman B, Warkentin T, Biligetu B. Tissue specific changes in elements and organic compounds of alfalfa (Medicago sativa L.) cultivars differing in salt tolerance under salt stress. JOURNAL OF PLANT PHYSIOLOGY 2021; 264:153485. [PMID: 34358945 DOI: 10.1016/j.jplph.2021.153485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 07/09/2021] [Accepted: 07/26/2021] [Indexed: 05/03/2023]
Abstract
Soil salinity is a global concern and often the primary factor contributing to land degradation, limiting crop growth and production. Alfalfa (Medicago sativa L.) is a low input high value forage legume with a wide adaptation. Examining the tissue-specific responses to salt stress will be important to understanding physiological changes of alfalfa. The responses of two alfalfa cultivars (salt tolerant 'Halo', salt intolerant 'Vernal') were studied for 12 weeks in five gradients of salt stress in a sand based hydroponic system in the greenhouse. The accumulation and localization of elements and organic compounds in different tissues of alfalfa under salt stress were evaluated using synchrotron beamlines. The pattern of chlorine accumulation for 'Halo' was: root > stem ~ leaf at 8 dSm-1, and root ~ leaf > stem at 12 dSm-1, potentially preventing toxic ion accumulation in leaf tissues. In contrast, for 'Vernal', it was leaf > stem ~ root at 8 dSm-1 and leaf > root ~ stem at 12 dSm-1. The distribution of chlorine in 'Halo' was relatively uniform in the leaf surface and vascular bundles of the stem. Amide concentration in the leaf and stem tissues was greater for 'Halo' than 'Vernal' at all salt gradients. This study determined that low ion accumulation in the shoot was a common strategy in salt tolerant alfalfa up to 8 dSm-1 of salt stress, which was then replaced by shoot tissue tolerance at 12 dSm-1.
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Affiliation(s)
- Surendra Bhattarai
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, S7N 5A8, Canada
| | - Na Liu
- Canadian Light Source, 44 Innovation Boulevard, Saskatoon, SK, S7N 2V3, Canada
| | - Chithra Karunakaran
- Canadian Light Source, 44 Innovation Boulevard, Saskatoon, SK, S7N 2V3, Canada
| | - Karen K Tanino
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, S7N 5A8, Canada
| | - Yong-Bi Fu
- Plant Gene Resources of Canada, Saskatoon Research and Development Centre, Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK, S7N 0X2, Canada
| | - Bruce Coulman
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, S7N 5A8, Canada
| | - Tom Warkentin
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, S7N 5A8, Canada
| | - Bill Biligetu
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, S7N 5A8, Canada.
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Gupta BK, Sahoo KK, Anwar K, Nongpiur RC, Deshmukh R, Pareek A, Singla-Pareek SL. Silicon nutrition stimulates Salt-Overly Sensitive (SOS) pathway to enhance salinity stress tolerance and yield in rice. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 166:593-604. [PMID: 34186283 DOI: 10.1016/j.plaphy.2021.06.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 06/07/2021] [Indexed: 05/27/2023]
Abstract
In rice (Oryza sativa), Si nutrition is known to improve salinity tolerance; however, limited efforts have been made to elucidate the underlying mechanism. Salt-Overly Sensitive (SOS) pathway contributes to salinity tolerance in plants in a major way which works primarily through Na+ exclusion from the cytosol. SOS1, a vital component of SOS pathway is a Na+/H+ antiporter that maintains ion homeostasis. In this study, we evaluated the effect of overexpression of Oryza sativa SOS1 (OsSOS1) in tobacco (cv. Petit Havana) and rice (cv. IR64) for modulating its response towards salinity further exploring its correlation with Si nutrition. OsSOS1 transgenic tobacco plants showed enhanced tolerance to salinity as evident by its high chlorophyll content and maintaining favorable ion homeostasis under salinity stress. Similarly, transgenic rice overexpressing OsSOS1 also showed improved salinity stress tolerance as shown by higher seed germination percentage, seedling survival and low Na+ accumulation under salinity stress. At their mature stage, compared with the non-transgenic plants, the transgenic rice plants showed better growth and maintained better photosynthetic efficiency with reduced chlorophyll loss under stress. Also, roots of transgenic rice plants showed reduced accumulation of Na+ leading to reduced oxidative damage and cell death under salinity stress which ultimately resulted in improved agronomic traits such as higher number of panicles and fertile spikelets per panicle. Si nutrition was found to improve the growth of salinity stressed OsSOS1 rice by upregulating the expression of Si transporters (Lsi1 and Lsi2) that leads to more uptake and accumulation of Si in the rice shoots. Metabolite profiling showed better stress regulatory machinery in the transgenic rice, since they maintained higher abundance of most of the osmolytes and free amino acids.
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Affiliation(s)
- Brijesh K Gupta
- Plant Stress Biology, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Road, New Delhi, 110067, India.
| | - Khirod K Sahoo
- Plant Stress Biology, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Road, New Delhi, 110067, India.
| | - Khalid Anwar
- Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - Ramsong C Nongpiur
- Plant Stress Biology, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Road, New Delhi, 110067, India.
| | - Rupesh Deshmukh
- National Agri-Food Biotechnology Institute, Mohali, Punjab, 140306, India.
| | - Ashwani Pareek
- Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India; National Agri-Food Biotechnology Institute, Mohali, Punjab, 140306, India.
| | - Sneh L Singla-Pareek
- Plant Stress Biology, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Road, New Delhi, 110067, India.
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37
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Singhal RK, Saha D, Skalicky M, Mishra UN, Chauhan J, Behera LP, Lenka D, Chand S, Kumar V, Dey P, Indu, Pandey S, Vachova P, Gupta A, Brestic M, El Sabagh A. Crucial Cell Signaling Compounds Crosstalk and Integrative Multi-Omics Techniques for Salinity Stress Tolerance in Plants. FRONTIERS IN PLANT SCIENCE 2021; 12:670369. [PMID: 34484254 PMCID: PMC8414894 DOI: 10.3389/fpls.2021.670369] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 05/28/2021] [Indexed: 10/29/2023]
Abstract
In the era of rapid climate change, abiotic stresses are the primary cause for yield gap in major agricultural crops. Among them, salinity is considered a calamitous stress due to its global distribution and consequences. Salinity affects plant processes and growth by imposing osmotic stress and destroys ionic and redox signaling. It also affects phytohormone homeostasis, which leads to oxidative stress and eventually imbalances metabolic activity. In this situation, signaling compound crosstalk such as gasotransmitters [nitric oxide (NO), hydrogen sulfide (H2S), hydrogen peroxide (H2O2), calcium (Ca), reactive oxygen species (ROS)] and plant growth regulators (auxin, ethylene, abscisic acid, and salicylic acid) have a decisive role in regulating plant stress signaling and administer unfavorable circumstances including salinity stress. Moreover, recent significant progress in omics techniques (transcriptomics, genomics, proteomics, and metabolomics) have helped to reinforce the deep understanding of molecular insight in multiple stress tolerance. Currently, there is very little information on gasotransmitters and plant growth regulator crosstalk and inadequacy of information regarding the integration of multi-omics technology during salinity stress. Therefore, there is an urgent need to understand the crucial cell signaling crosstalk mechanisms and integrative multi-omics techniques to provide a more direct approach for salinity stress tolerance. To address the above-mentioned words, this review covers the common mechanisms of signaling compounds and role of different signaling crosstalk under salinity stress tolerance. Thereafter, we mention the integration of different omics technology and compile recent information with respect to salinity stress tolerance.
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Affiliation(s)
| | - Debanjana Saha
- Department of Biotechnology, Centurion University of Technology and Management, Bhubaneswar, India
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Udit N. Mishra
- Faculty of Agriculture, Sri Sri University, Cuttack, India
| | - Jyoti Chauhan
- Narayan Institute of Agricultural Sciences, Gopal Narayan Singh University, Jamuhar, India
| | - Laxmi P. Behera
- Department of Agriculture Biotechnology, Orissa University of Agriculture and Technology, Bhubaneswar, India
| | - Devidutta Lenka
- Department of Plant Breeding and Genetics, Orissa University of Agriculture and Technology, Bhubaneswar, India
| | - Subhash Chand
- ICAR-Indian Grassland and Fodder Research Institute, Jhansi, India
| | - Vivek Kumar
- Institute of Agriculture Sciences, Banaras Hindu University, Varanasi, India
| | - Prajjal Dey
- Faculty of Agriculture, Sri Sri University, Cuttack, India
| | - Indu
- ICAR-Indian Grassland and Fodder Research Institute, Jhansi, India
| | - Saurabh Pandey
- Department of Agriculture, Guru Nanak Dev University, Amritsar, India
| | - Pavla Vachova
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Aayushi Gupta
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Marian Brestic
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
- Department of Plant Physiology, Slovak University of Agriculture in Nitra, Nitra, Slovakia
| | - Ayman El Sabagh
- Department of Agronomy, Faculty of Agriculture, University of Kafrelsheikh, Kafr El Sheikh, Egypt
- Department of Field Crops, Faculty of Agriculture, Siirt University, Siirt, Turkey
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38
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DeTar RA, Barahimipour R, Manavski N, Schwenkert S, Höhner R, Bölter B, Inaba T, Meurer J, Zoschke R, Kunz HH. Loss of inner-envelope K+/H+ exchangers impairs plastid rRNA maturation and gene expression. THE PLANT CELL 2021; 33:2479-2505. [PMID: 34235544 PMCID: PMC8364240 DOI: 10.1093/plcell/koab123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/30/2021] [Indexed: 05/08/2023]
Abstract
The inner-envelope K+ EFFLUX ANTIPORTERS (KEA) 1 and 2 are critical for chloroplast development, ion homeostasis, and photosynthesis. However, the mechanisms by which changes in ion flux across the envelope affect organelle biogenesis remained elusive. Chloroplast development requires intricate coordination between the nuclear genome and the plastome. Many mutants compromised in plastid gene expression (PGE) display a virescent phenotype, that is delayed greening. The phenotypic appearance of Arabidopsis thaliana kea1 kea2 double mutants fulfills this criterion, yet a link to PGE has not been explored. Here, we show that a simultaneous loss of KEA1 and KEA2 results in maturation defects of the plastid ribosomal RNAs. This may be caused by secondary structure changes of rRNA transcripts and concomitant reduced binding of RNA-processing proteins, which we documented in the presence of skewed ion homeostasis in kea1 kea2. Consequently, protein synthesis and steady-state levels of plastome-encoded proteins remain low in mutants. Disturbance in PGE and other signs of plastid malfunction activate GENOMES UNCOUPLED 1-dependent retrograde signaling in kea1 kea2, resulting in a dramatic downregulation of GOLDEN2-LIKE transcription factors to halt expression of photosynthesis-associated nuclear-encoded genes (PhANGs). PhANG suppression delays the development of fully photosynthesizing kea1 kea2 chloroplasts, probably to avoid progressing photo-oxidative damage. Overall, our results reveal that KEA1/KEA2 function impacts plastid development via effects on RNA-metabolism and PGE.
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Affiliation(s)
- Rachael Ann DeTar
- Plant Physiology, School of Biological Sciences, Washington State University, PO Box 644236, Pullman, WA 99164-4236, USA
| | - Rouhollah Barahimipour
- Max Planck Institute of Molecular Plant Physiology, Wissenschaftspark Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Nikolay Manavski
- Plant Sciences, Department I, LMU Munich, Großhaderner Str. 2-4, 82152 Planegg-Martinsried, Germany
| | - Serena Schwenkert
- Plant Sciences, Department I, LMU Munich, Großhaderner Str. 2-4, 82152 Planegg-Martinsried, Germany
| | - Ricarda Höhner
- Plant Physiology, School of Biological Sciences, Washington State University, PO Box 644236, Pullman, WA 99164-4236, USA
| | - Bettina Bölter
- Plant Sciences, Department I, LMU Munich, Großhaderner Str. 2-4, 82152 Planegg-Martinsried, Germany
| | - Takehito Inaba
- Department of Agricultural and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Jörg Meurer
- Plant Sciences, Department I, LMU Munich, Großhaderner Str. 2-4, 82152 Planegg-Martinsried, Germany
| | - Reimo Zoschke
- Max Planck Institute of Molecular Plant Physiology, Wissenschaftspark Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Hans-Henning Kunz
- Plant Physiology, School of Biological Sciences, Washington State University, PO Box 644236, Pullman, WA 99164-4236, USA
- Plant Sciences, Department I, LMU Munich, Großhaderner Str. 2-4, 82152 Planegg-Martinsried, Germany
- Author for correspondence:
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39
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Kamiyama Y, Katagiri S, Umezawa T. Growth Promotion or Osmotic Stress Response: How SNF1-Related Protein Kinase 2 (SnRK2) Kinases Are Activated and Manage Intracellular Signaling in Plants. PLANTS 2021; 10:plants10071443. [PMID: 34371646 PMCID: PMC8309267 DOI: 10.3390/plants10071443] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 12/12/2022]
Abstract
Reversible phosphorylation is a major mechanism for regulating protein function and controls a wide range of cellular functions including responses to external stimuli. The plant-specific SNF1-related protein kinase 2s (SnRK2s) function as central regulators of plant growth and development, as well as tolerance to multiple abiotic stresses. Although the activity of SnRK2s is tightly regulated in a phytohormone abscisic acid (ABA)-dependent manner, recent investigations have revealed that SnRK2s can be activated by group B Raf-like protein kinases independently of ABA. Furthermore, evidence is accumulating that SnRK2s modulate plant growth through regulation of target of rapamycin (TOR) signaling. Here, we summarize recent advances in knowledge of how SnRK2s mediate plant growth and osmotic stress signaling and discuss future challenges in this research field.
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Affiliation(s)
- Yoshiaki Kamiyama
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan; (Y.K.); (S.K.)
| | - Sotaro Katagiri
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan; (Y.K.); (S.K.)
| | - Taishi Umezawa
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan; (Y.K.); (S.K.)
- Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8538, Japan
- Correspondence:
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Raina M, Kumar A, Yadav N, Kumari S, Yusuf MA, Mustafiz A, Kumar D. StCaM2, a calcium binding protein, alleviates negative effects of salinity and drought stress in tobacco. PLANT MOLECULAR BIOLOGY 2021; 106:85-108. [PMID: 33629224 DOI: 10.1007/s11103-021-01131-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 02/09/2021] [Indexed: 05/20/2023]
Abstract
KEY MESSAGE Overexpression of StCaM2 in tobacco promotes plant growth and confers increased salinity and drought tolerance by enhancing the photosynthetic efficiency, ROS scavenging, and recovery from membrane injury. Calmodulins (CaMs) are important Ca2+ sensors that interact with effector proteins and drive a network of signal transduction pathways involved in regulating the growth and developmental pattern of plants under stress. Herein, using in silico analysis, we identified 17 CaM isoforms (StCaM) in potato. Expression profiling revealed different temporal and spatial expression patterns of these genes, which were modulated under abiotic stress. Among the identified StCaM genes, StCaM2 was found to have the largest number of abiotic stress responsive promoter elements. In addition, StCaM2 was upregulated in response to some of the selected abiotic stress in potato tissues. Overexpression of StCaM2 in transgenic tobacco plants enhanced their tolerance to salinity and drought stress. Accumulation of reactive oxygen species was remarkably decreased in transgenic lines compared to that in wild type plants. Chlorophyll a fluorescence analysis suggested better performance of photosystem II in transgenic plants under stress compared to that in wild type plants. The increase in salinity stress tolerance in StCaM2-overexpressing plants was also associated with a favorable K+/Na+ ratio. The enhanced tolerance to abiotic stresses correlated with the increase in the activities of anti-oxidative enzymes in transgenic tobacco plants. Overall, our results suggest that StCaM2 can be a novel candidate for conferring salt and drought tolerance in plants.
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Affiliation(s)
- Meenakshi Raina
- Department of Botany, Central University of Jammu, Rahya-Suchani (Bagla), Dist- Samba, Jammu and Kashmir, 181143, India
| | - Ashish Kumar
- Plant Molecular Biology Laboratory, Faculty of Life Sciences and Biotechnology, South Asian University, Akbar Bhawan, Chanakyapuri, New Delhi, 110021, India
| | - Nikita Yadav
- Plant Molecular Biology Laboratory, Faculty of Life Sciences and Biotechnology, South Asian University, Akbar Bhawan, Chanakyapuri, New Delhi, 110021, India
| | - Sumita Kumari
- Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Jammu and Kashmir, India
| | - Mohd Aslam Yusuf
- Department of Bioengineering, Integral University, Dasauli, Kursi Road, Lucknow, 226026, India
| | - Ananda Mustafiz
- Plant Molecular Biology Laboratory, Faculty of Life Sciences and Biotechnology, South Asian University, Akbar Bhawan, Chanakyapuri, New Delhi, 110021, India.
| | - Deepak Kumar
- Department of Botany, Central University of Jammu, Rahya-Suchani (Bagla), Dist- Samba, Jammu and Kashmir, 181143, India.
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India.
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Brindha C, Vasantha S, Raja AK, Tayade AS. Characterization of the Salt Overly Sensitive pathway genes in sugarcane under salinity stress. PHYSIOLOGIA PLANTARUM 2021; 171:677-687. [PMID: 33063359 DOI: 10.1111/ppl.13245] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 09/13/2020] [Indexed: 06/11/2023]
Abstract
The Salt Overly Sensitive (SOS) pathway is a crucial ion homeostasis process in crop plants trafficking excess Na+ ions for elimination/sequestration. The SOS pathway genes SOS1 (Na+ /H+ antiporter), SOS2 (CIPK), and SOS3 (CBL) associated with ion homeostasis were isolated and characterized in the sugarcane clone Co 85019. The isolated genes had a coding region of 1086, 904, and 636 bp, respectively. A nucleotide blast analysis of the isolated SOS gene sequences showed strong similarity with previous genes found to be involved in the active functioning of the SOS pathway for ion homeostasis conferring salinity tolerance in sugarcane. The analysis of tissue specific gene expression of the identified SOS genes revealed a significant linear increase in the leaves under the first 96 h of salt stress (2.5- to 21.6-fold) in the tolerant genotype Co 85019, while the expression in the roots showed a linear increase up to 48 h and thereafter a gradual decline. The expression of SOS genes in the susceptible genotype (Co 97010) was significantly lower than in the tolerant genotype. Tissue ion content analysis also revealed a differential accumulation of Na+ and K+ ions in the contrasting sugarcane genotypes (Co 85019 and Co 97010) and this corroborates the varied expressions of SOS genes between the tolerant and susceptible varieties under salinity. Genome-wide analysis of identified SOS family genes showed the homologs in Saccharum complex members, Sorghum bicolor and Zea mays, and this verifies a close genetic similarity among these genera.
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Affiliation(s)
- Chinnasamy Brindha
- Indian Council of Agricultural Research, Sugarcane Breeding Institute, Coimbatore, India
| | | | - Arun K Raja
- Indian Council of Agricultural Research, Sugarcane Breeding Institute, Coimbatore, India
| | - Arjun S Tayade
- Indian Council of Agricultural Research, Sugarcane Breeding Institute, Coimbatore, India
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Ranawat B, Mishra S, Singh A. Enterobacter hormaechei (MF957335) enhanced yield, disease and salinity tolerance in tomato. Arch Microbiol 2021; 203:2659-2667. [PMID: 33712862 DOI: 10.1007/s00203-021-02226-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 01/05/2021] [Accepted: 02/11/2021] [Indexed: 10/21/2022]
Abstract
Soil salinity is one of the major limiting factors for poor crop yield in the world. Increasing salinity in the soil is a challenge for agriculture. In the recent past, plant growth-promoting rhizobacteria (PGPR) are being used to enhance plant growth in various conditions. However, the saline-tolerant PGPR are of great use for plant growth under saline condition. In the present study, saline-tolerant E. hormaechei (MF957335) was isolated from saline water. E. hormaechei (MF957335) was tested for its potassium and calcium solubilizing efficiency using Scanning Electron Microscopy-Energy Dispersive X-Ray (SEM-EDX). E. hormaechei (MF957335) and K-Feldspar treatments significantly increased plant growth as compared to untreated plants (negative control). E. hormaechei (MF957335) significantly increased fresh biomass, shoot and root length of tomato plants. Among all the NaCl treatments, maximum fruits (9.66) were achieved in 250 mM NaCl + E. hormaechei treatment. Similar results with increased fruit numbers were obtained in K-Feldspar-treated plants. Apart from the plant growth, fresh biomass and fruit numbers, tomatoes from K-Feldspar-treated plants were large, fleshy and deep red colored. The study could demonstrate bioavailability of potassium from K-feldspar for tomato cultivation. Control plants tomato were small, non-fleshy, yellowish red, and infected with calcium deficiency disease blossom-end rot. The present study demonstrates the role of E. hormaechei (MF957335) in plant growth, yield promotion and disease tolerance by potassium and calcium solubilization, respectively. The study showed that E. hormaechei (MF957335) could be applied to saline and non-saline soils to enhance tomato yield.
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Affiliation(s)
- Bablesh Ranawat
- Applied Phycology and Biotechnology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sandhya Mishra
- Applied Phycology and Biotechnology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Aneesha Singh
- Applied Phycology and Biotechnology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Hussain S, Hussain S, Ali B, Ren X, Chen X, Li Q, Saqib M, Ahmad N. Recent progress in understanding salinity tolerance in plants: Story of Na +/K + balance and beyond. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 160:239-256. [PMID: 33524921 DOI: 10.1016/j.plaphy.2021.01.029] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 01/18/2021] [Indexed: 05/07/2023]
Abstract
High salt concentrations in the growing medium can severely affect the growth and development of plants. It is imperative to understand the different components of salt-tolerant network in plants in order to produce the salt-tolerant cultivars. High-affinity potassium transporter- and myelocytomatosis proteins have been shown to play a critical role for salinity tolerance through exclusion of sodium (Na+) ions from sensitive shoot tissues in plants. Numerous genes, that limit the uptake of salts from soil and their transport throughout the plant body, adjust the ionic and osmotic balance of cells in roots and shoots. In the present review, we have tried to provide a comprehensive report of major research advances on different mechanisms regulating plant tolerance to salinity stress at proteomics, metabolomics, genomics and transcriptomics levels. Along with the role of ionic homeostasis, a major focus was given on other salinity tolerance mechanisms in plants including osmoregulation and osmo-protection, cell wall remodeling and integrity, and plant antioxidative defense. Major proteins and genes expressed under salt-stressed conditions and their role in enhancing salinity tolerance in plants are discussed as well. Moreover, this manuscript identifies and highlights the key questions on plant salinity tolerance that remain to be discussed in the future.
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Affiliation(s)
- Sadam Hussain
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China; Department of Agronomy, University of Agriculture, Faisalabad, Pakistan
| | - Saddam Hussain
- Department of Agronomy, University of Agriculture, Faisalabad, Pakistan; Shanghai Center for Plant Stress Biology, Chinese Academy of Agricultural Sciences, Shanghai, China.
| | - Basharat Ali
- Department of Agronomy, University of Agriculture, Faisalabad, Pakistan
| | - Xiaolong Ren
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiaoli Chen
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Qianqian Li
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Muhammad Saqib
- Agronomic Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - Naeem Ahmad
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
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Naegele RP, Londo JP, Zou C, Cousins P. Identification of SNPs associated with magnesium and sodium uptake and the effect of their accumulation on micro and macro nutrient levels in Vitis vinifera. PeerJ 2021; 9:e10773. [PMID: 33614279 PMCID: PMC7877238 DOI: 10.7717/peerj.10773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 12/22/2020] [Indexed: 11/20/2022] Open
Abstract
Macro and micro nutrient accumulation affects all stages of plant growth and development. When nutrient deficiencies or excesses occur, normal plant growth is altered resulting in symptoms such as leaf chlorosis, plant stunting or death. In grapes, few genomic regions associated with nutrient accumulation or deficiencies have been identified. Our study evaluated micro and macro nutrient concentrations in Vitis vinifera L. to identify associated SNPs using an association approach with genotype by sequencing data. Nutrient concentrations and foliar symptoms (leaf chlorosis and stunting) were compared among 249 F1Vitis vinifera individuals in 2015 and 2016. Foliar symptoms were consistent (≥90%) between years and correlated with changes in nutrient concentrations of magnesium (r = 0.65 and r = 0.38 in 2015 and 2016, respectively), aluminum (r = 0.24 and r = 0.49), iron (r = 0.21 and r = 0.49), and sodium (r = 0.32 and r = 0.21). Single nucleotide polymorphisms associated with symptoms, sodium, and magnesium were detected on each chromosome with the exception of 5, 7 and 17 depending on the trait and genome used for analyses explaining up to 40% of the observed variation. Symptoms and magnesium concentration were primarily associated with SNPs on chromosome 3, while SNPs associated with increased sodium content were primarily found on chromosomes 11 and 18. Mean concentrations for each nutrient varied between years in the population between symptomatic and asymptomatic plants, but relative relationships were mostly consistent. These data suggest a complex relationship among foliar symptoms and micro and macro nutrients accumulating in grapevines.
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Affiliation(s)
- Rachel P Naegele
- San Joaquin Valley Agricultural Sciences Center, USDA ARS, Parlier, CA, United States of America
| | - Jason P Londo
- Grape Genetics Unit, USDA ARS, Geneva, NY, United States of America
| | - Cheng Zou
- BRC Bioinformatics Facility, Institute of Biotechnology, Cornell University, Ithaca, NY, United States of America
| | - Peter Cousins
- E&J Gallo Winery, Modesto, CA, United States of America
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Ketehouli T, Zhou YG, Dai SY, Carther KFI, Sun DQ, Li Y, Nguyen QVH, Xu H, Wang FW, Liu WC, Li XW, Li HY. A soybean calcineurin B-like protein-interacting protein kinase, GmPKS4, regulates plant responses to salt and alkali stresses. JOURNAL OF PLANT PHYSIOLOGY 2021; 256:153331. [PMID: 33310529 DOI: 10.1016/j.jplph.2020.153331] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 06/12/2023]
Abstract
Calcineurin B-like protein-interacting protein kinases (CIPKs) are key elements of plant abiotic stress signaling pathways. CIPKs are SOS2 (Salt Overly Sensitive 2)-like proteins (protein kinase S [PKS] proteins) which all contain a putative FISL motif. It seems that the FISL motif is found only in the SOS2 subfamily of protein kinases. In this study, the full-length cDNA of a soybean CIPK gene (GmPKS4) was isolated and was revealed to have an important role in abiotic stress responses. A qRT-PCR analysis indicated that GmPKS4 expression is upregulated under saline conditions or when exposed to alkali, salt-alkali, drought, or abscisic acid (ABA). A subcellular localization assay revealed the presence of GmPKS4 in the nucleus and cytoplasm. Further studies on the GmPKS4 promoter suggested it affects soybean resistance to various stresses. Transgenic Arabidopsis thaliana and soybean hairy roots overexpressing GmPKS4 had increased proline content as well as high antioxidant enzyme activities but decreased malondialdehyde levels following salt and salt-alkali stress treatments. Additionally, GmPKS4 overexpression activated reactive oxygen species scavenging systems, thereby minimizing damages due to oxidative and osmotic stresses. Moreover, upregulated stress-related gene expression levels were detected in lines overexpressing GmPKS4 under stress conditions. In conclusion, GmPKS4 improves soybean tolerance to salt and salt-alkali stresses. The overexpression of GmPKS4 enhances the scavenging of reactive oxygen species, osmolyte synthesis, and the transcriptional regulation of stress-related genes.
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Affiliation(s)
- Toi Ketehouli
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
| | - Yong-Gang Zhou
- College of Tropical Crops, Hainan University, Haikou, 570228, China(2); College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
| | - Si-Yu Dai
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
| | - Kue Foka Idrice Carther
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
| | - Da-Qian Sun
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
| | - Yang Li
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
| | - Quoc Viet Hoang Nguyen
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
| | - Hu Xu
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
| | - Fa-Wei Wang
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
| | - Wei-Can Liu
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
| | - Xiao-Wei Li
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
| | - Hai-Yan Li
- College of Tropical Crops, Hainan University, Haikou, 570228, China(2); College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, China(3).
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Ammonium Accumulation Caused by Reduced Tonoplast V-ATPase Activity in Arabidopsis thaliana. Int J Mol Sci 2020; 22:ijms22010002. [PMID: 33374906 PMCID: PMC7792577 DOI: 10.3390/ijms22010002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 01/06/2023] Open
Abstract
Plant vacuoles are unique compartments that play a critical role in plant growth and development. The vacuolar H+-ATPase (V-ATPase), together with the vacuolar H+-pyrophosphatase (V-PPase), generates the proton motive force that regulates multiple cell functions and impacts all aspects of plant life. We investigated the effect of V-ATPase activity in the vacuole on plant growth and development. We used an Arabidopsisthaliana (L.) Heynh. double mutant, vha-a2 vha-a3, which lacks two tonoplast-localized isoforms of the membrane-integral V-ATPase subunit VHA-a. The mutant is viable but exhibits impaired growth and leaf chlorosis. Nitrate assimilation led to excessive ammonium accumulation in the shoot and lower nitrogen uptake, which exacerbated growth retardation of vha-a2 vha-a3. Ion homeostasis was disturbed in plants with missing VHA-a2 and VHA-a3 genes, which might be related to limited growth. The reduced growth and excessive ammonium accumulation of the double mutant was alleviated by potassium supplementation. Our results demonstrate that plants lacking the two tonoplast-localized subunits of V-ATPase can be viable, although with defective growth caused by multiple factors, which can be alleviated by adding potassium. This study provided a new insight into the relationship between V-ATPase, growth, and ammonium accumulation, and revealed the role of potassium in mitigating ammonium toxicity.
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Phour M, Sehrawat A, Sindhu SS, Glick BR. Interkingdom signaling in plant-rhizomicrobiome interactions for sustainable agriculture. Microbiol Res 2020; 241:126589. [DOI: 10.1016/j.micres.2020.126589] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 12/24/2022]
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Huang HE, Ho MH, Chang H, Chao HY, Ger MJ. Overexpression of plant ferredoxin-like protein promotes salinity tolerance in rice (Oryza sativa). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 155:136-146. [PMID: 32750653 DOI: 10.1016/j.plaphy.2020.07.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 06/18/2020] [Accepted: 07/13/2020] [Indexed: 05/02/2023]
Abstract
High-salinity stress is one of the major limiting factors on crop productivity. Physiological strategies against high-salinity stress include generation of reactive oxygen species (ROS), induction of stress-related genes expression, accumulation of abscisic acid (ABA) and up-regulation of antiporters. ROS are metabolism by-products and involved in signal transduction pathway. Constitutive expression of plant ferrodoxin-like protein (PFLP) gene enhances pathogen-resistance activities and root-hair growth through promoting ROS generation. However, the function of PFLP in abiotic stress responses is unclear. In this study, PFLP-1 and PFLP-2-transgenic rice plants were generated to elucidate the role of PFLP under salinity stress. PFLP overexpression significantly increased salt tolerance in PFLP-transgenic rice plants compared with non-transgenic plants (Oryza sativa japonica cv. Tainung 67, designated as TNG67). In high-salinity conditions, PFLP-transgenic plants exhibited earlier ROS production, higher antioxidant enzyme activities, higher ABA accumulation, up-regulated expression of stress-related genes (OsRBOHa, Cu/Zn SOD, OsAPX, OsNCED2, OsSOS1, OsCIPK24, OsCBL4, and OsNHX2), and leaf sodium ion content was lower compared with TNG67 plant. In addition, transgenic lines maintained electron transport rates and contained lower malondialdhyde (MDA) content than TNG67 plant did under salt-stress conditions. Overall results indicated salinity tolerance was improved by PFLP overexpression in transgenic rice plant. The PFLP gene is a potential candidate for improving salinity tolerance for valuable agricultural crops.
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Affiliation(s)
- Hsiang-En Huang
- Department of Life Sciences, National Taitung University, Taitung, 95002, Taiwan.
| | - Mei-Hsuan Ho
- Institute of Biotechnology, National University of Kaohsiung, Kaohsiung, 81148, Taiwan.
| | - Hsiang Chang
- Department of Biotechnology and Pharmaceutical Technology, Yuanpei University of Medical Technology, Hsinchu, 30015, Taiwan.
| | - Hsien-Yu Chao
- Institute of Biotechnology, National University of Kaohsiung, Kaohsiung, 81148, Taiwan.
| | - Mang-Jye Ger
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung, 81148, Taiwan.
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Li J, Zhou H, Zhang Y, Li Z, Yang Y, Guo Y. The GSK3-like Kinase BIN2 Is a Molecular Switch between the Salt Stress Response and Growth Recovery in Arabidopsis thaliana. Dev Cell 2020; 55:367-380.e6. [PMID: 32891194 DOI: 10.1016/j.devcel.2020.08.005] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 02/07/2020] [Accepted: 08/10/2020] [Indexed: 01/12/2023]
Abstract
Plant stress responses involve dynamic growth regulation. Growth is restricted in harsh environmental conditions and is rapidly restored when conditions improve. Here, we identified BIN2, a glycogen synthase kinase 3 (GSK3)-like kinase, as a molecular switch in the transition to robust growth after salt stress in Arabidopsis thaliana. In the rapid recovery phase after salt stress, the calcium sensors SOS3 and SCaBP8 perceive a calcium signal and promote BIN2 localization to the plasma membrane to repress the salt stress response, and BIN2 inhibits SOS2 activity and enhances growth by releasing BZR1/BES1 transcriptional activity. The expression of stress- and brassinosteroid-responsive genes is coordinately regulated during this process. bin2-3bil1 and bin2-3bil2 mutants defective in BIN2 and its homologs BIL1 and BIL2, respectively, are hyposensitive to salt stress. Our study suggests that salt signaling modulates the subcellular localization and interactions of BIN2. By phosphorylating different substrates, BIN2 regulates the salt stress response and growth recovery.
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Affiliation(s)
- Jianfang Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Huapeng Zhou
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Yan Zhang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhen Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yongqing Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yan Guo
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China.
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Lu L, Chen X, Zhu L, Li M, Zhang J, Yang X, Wang P, Lu Y, Cheng T, Shi J, Yi Y, Chen J. NtCIPK9: A Calcineurin B-Like Protein-Interacting Protein Kinase From the Halophyte Nitraria tangutorum, Enhances Arabidopsis Salt Tolerance. FRONTIERS IN PLANT SCIENCE 2020; 11:1112. [PMID: 32973820 PMCID: PMC7472804 DOI: 10.3389/fpls.2020.01112] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 07/06/2020] [Indexed: 05/20/2023]
Abstract
Calcineurin B-like protein-interacting protein kinases (CIPKs) play essential roles in plant abiotic stress response. In order to better understand salt tolerance, we cloned and analyzed the NtCIPK9 gene from the halophyte Nitraria tangutorum. Phylogenetic analysis shows that NtCIPK9 belongs to a sister clade with the Arabidopsis AtCIPK9 gene and is thought to localize to the plasma membrane. NtCIPK9 shows the highest expression level in the Nitraria tangutorum root under normal growth conditions, whereas after NaCl treatment, the highest expression was found in the blade. NtCIPK9-overexpressing Arabidopsis plants have a higher seed germination rate, longer root length, and displayed higher salt tolerance than wild type seedlings under salt stress conditions. Furthermore, NtCIPK9 overexpression might enhance the expression of genes related to K+ transportation after NaCl treatment. Thus, we conclude that NtCIPK9 increases transgenic plant salt tolerance and reduces damage associated with salt stress by promoting the expression of genes controlling ion homeostasis. Our results suggest that NtCIPK9 could serve as an ideal candidate gene to genetically engineer salt-tolerant plants.
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Affiliation(s)
- Lu Lu
- Key Laboratory of Forestry Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
| | - Xinying Chen
- Key Laboratory of Forestry Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
| | - Liming Zhu
- Key Laboratory of Forestry Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
| | - Mengjuan Li
- Key Laboratory of Forestry Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
| | - Jingbo Zhang
- Experimental Center of Desert Forestry, Chinese Academy of Forestry, Dengkou, China
| | - Xiuyan Yang
- Research Center of Saline and Alkali Land of National Forestry and Grassland Administration, China Academy of Forestry, Beijing, China
| | - Pengkai Wang
- Key Laboratory of Forestry Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
| | - Ye Lu
- Key Laboratory of Forestry Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
| | - Tielong Cheng
- Key Laboratory of Forestry Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
| | - Jisen Shi
- Key Laboratory of Forestry Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
| | - Yin Yi
- State Forestry Administration Key Laboratory of Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, Guizhou Normal University, Guiyang, China
- Guizhou Provincial Key Laboratory of Plant Physiology and Developmental Regulation, Guizhou Normal University, Guiyang, China
| | - Jinhui Chen
- Key Laboratory of Forestry Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
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