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Gao Y, Cui Y, Li M, Kang J, Yang Q, Ma Q, Long R. Comparative proteomic discovery of salt stress response in alfalfa roots and overexpression of MsANN2 confers salt tolerance. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109033. [PMID: 39137681 DOI: 10.1016/j.plaphy.2024.109033] [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: 12/19/2023] [Revised: 07/25/2024] [Accepted: 08/08/2024] [Indexed: 08/15/2024]
Abstract
Soil salinity constrains growth, development and yield of alfalfa (Medicago sativa L.). To illustrate the molecular mechanisms responsible for salt tolerance, a comparative proteome analysis was explored to characterize protein profiles of alfalfa seedling roots exposed to 100 and 200 mM NaCl for three weeks. There were 52 differentially expressed proteins identified, among which the mRNA expressions of 12 were verified by Real-Time-PCR analysis. The results showed increase in abundance of ascorbate peroxidase, POD, CBS protein and PR-10 in salt-stressed alfalfa, suggesting an effectively antioxidant and defense systems. Alfalfa enhanced protein quality control system to refold or degrade abnormal proteins induced by salt stress through upregulation of unfolded protein response (UPR) marker PDIs and molecular chaperones (eg. HSP70, TCP-1, and GroES) as well as the ubiquitin-proteasome system (UPS) including ubiquitin ligase enzyme (E3) and proteasome subunits. Upregulation of proteins responsible for calcium signal transduction including calmodulin and annexin helped alfalfa adapt to salt stress. Specifically, annexin (MsANN2), a key Ca2+-binding protein, was selected for further characterization. The heterologous of the MsANN2 in Arabidopsis conferred salt tolerance. These results provide detailed information for salt-responsive root proteins and highlight the importance of MsANN2 in adapting to salt stress in alfalfa.
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Affiliation(s)
- Yanli Gao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, No. 666 Wusu St, Lin'an District, Hangzhou, Zhejiang, 311300, China; Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Yanjun Cui
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, No. 666 Wusu St, Lin'an District, Hangzhou, Zhejiang, 311300, China; Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Mingna Li
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Junmei Kang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Qingchuan Yang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Qiaoli Ma
- College of Forestry and Prataculture, Ningxia University, No. 489 West Helanshan Road, Yinchuan, Ningxia, 750021, China
| | - Ruicai Long
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
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2
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Wei H, He W, Mao X, Liao S, Wang Q, Wang Z, Tang M, Xu T, Chen H. Arbuscular mycorrhizal fungi and exogenous Ca 2+ application synergistically enhance salt and alkali resistance in perennial ryegrass through diverse adaptive strategies. Microbiol Res 2024; 289:127906. [PMID: 39321594 DOI: 10.1016/j.micres.2024.127906] [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: 05/06/2024] [Revised: 08/30/2024] [Accepted: 09/10/2024] [Indexed: 09/27/2024]
Abstract
The challenge of soil salinization and alkalization, with its significant impact on crop productivity, has raised growing concerns with global population growth and enhanced environmental degradation. Although arbuscular mycorrhizal fungi (AMF) and calcium ions (Ca2+) are known to enhance plant resistance to stress, their combined effects on perennial ryegrass' tolerance to salt and alkali stress and the underlying mechanisms remain poorly understood. This study aimed to elucidate the roles of Arbuscular mycorrhizal (AM) fungus Rhizophagus irregularis and exogenous Ca2+ application in molecular and physiological responses to salt-alkali stress. AM symbiosis and exogenous Ca2+ application enhanced antioxidant enzyme activity and non-enzymatic components, promoting reactive oxygen species (ROS) scavenging and reducing lipid peroxidation while alleviating oxidative damage induced by salt-alkali stress. Furthermore, they enhanced osmotic balance by increasing soluble sugar content (Proportion of contribution of the osmotic adjustment were 34∼38 % in shoots and 30∼37 % in roots) under salt stress and organic acid content (Proportion of contribution of the osmotic adjustment were 32∼36 % in shoots and 37∼42 % in roots) under alkali stress. Changes in organic solute and inorganic cation-anion contents contributed to ion balance, while hormonal regulation played a role in these protective mechanisms. Moreover, the protective mechanisms involved activation of Ca2+-mediated signaling pathways, regulation of salt-alkali stress-related genes (including LpNHX1 and LpSOS1), increased ATPase activity, elevated ATP levels, enhanced Na+ extrusion, improved K+ absorption capacity, and a reduced Na+/K+ ratio, all contributing to the protection of photosynthetic pigments and the enhancement of photosynthetic efficiency. Ultimately, the combined application of exogenous Ca2+ and AMF synergistically alleviated the inhibitory effects of salt-alkali stress on perennial ryegrass growth. This finding suggested that exogenous Ca2+ may participate in the colonization of perennial ryegrass plants by R. irregularis, while AM symbiosis may activate Ca2+ pathways. Consequently, the combined treatment of AM and Ca2+ is beneficial for enhancing plant regulatory mechanisms and increasing crop yield under salt-alkali stress.
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Affiliation(s)
- Hongjian Wei
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Wenyuan He
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Xinjie Mao
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Songkai Liao
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Qi Wang
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Zhihao Wang
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Ming Tang
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Tingying Xu
- Boone Pickens School of Geology, Oklahoma State University, Stillwater, OK 74074, United States.
| | - Hui Chen
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China.
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Li Q, Wang X, Teng Y, Yu X, Zhao Y. Gamma-aminobutyric acid as a regulator of astaxanthin production in Haematococcus lacustris under salinity: Exploring physiology, signaling, autophagy, and multi-omics landscape. BIORESOURCE TECHNOLOGY 2024; 413:131466. [PMID: 39260731 DOI: 10.1016/j.biortech.2024.131466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 08/31/2024] [Accepted: 09/07/2024] [Indexed: 09/13/2024]
Abstract
Haematococcus lacustris-derived natural astaxanthin has significant commercial value, but stressful conditions alone impair cell growth and reduce the total productivity of astaxanthin in industrial settings. This study used gamma-aminobutyric acid (GABA) to increase biomass, astaxanthin productivity, and tolerance to salinity. GABA under NaCl stress enhanced the biomass to 1.76 g/L, astaxanthin content to 30.37 mg g-1, and productivity to 4.10 mg/L d-1, outperforming the control. Further analysis showed GABA enhanced nitrogen assimilation, Ca2+ level, and cellular GABA content, boosting substrate synthesis, energy metabolism, osmoregulation, autophagy, and antioxidant defenses. GABA also activated signaling pathways involving phytohormones, cAMP, cGMP, and MAPK, aiding astaxanthin synthesis. The application of biomarkers (ethylene, salicylic acid, trans-zeatin) and an autophagy inhibitor cooperated with GABA to further enhance the total astaxanthin productivity under NaCl stress. Combining GABA with 25 μM salicylic acid maximized astaxanthin yield at 4.79 mg/L d-1, offering new strategies for industrial astaxanthin production.
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Affiliation(s)
- Qingqing Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Xiang Wang
- Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Yajun Teng
- Kunming Customs Technology Center, Kunming 650228, China
| | - Xuya Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China.
| | - Yongteng Zhao
- Yunnan Urban Agricultural Engineering & Technological Research Center, College of Agronomy and Life Science, Kunming University, Kunming 650214, China.
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Zhang C, Meng Y, Zhao M, Wang M, Wang C, Dong J, Fan W, Xu F, Wang D, Xie Z. Advances and mechanisms of fungal symbionts in improving the salt tolerance of crops. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 349:112261. [PMID: 39270825 DOI: 10.1016/j.plantsci.2024.112261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 09/08/2024] [Accepted: 09/09/2024] [Indexed: 09/15/2024]
Abstract
Soil salinization leads to reduced crop yields and waste of land resources, thereby impacting global food security. To meet the increasing demand for food and simultaneously alleviate pressure on soil resources, the development of sustainable agriculture is imperative. In contrast to physical and chemical methods, bioremediation represents an efficient and environmentally friendly approach. Fungal symbionts have been found to be associated with most plants in natural ecosystems, colonizing and residing within the internal tissues of host plants. Moreover, the potential of fungal symbionts in improving saline-alkaline soil has been widely recognized and confirmed. Numerous reports have documented the effectiveness of arbuscular mycorrhizal fungi in alleviating salt stress in plants. Meanwhile, research on other endophytic fungi for mitigating plant salt stress has emerged in recent years, which contributes to refining mechanisms for enhancing plant salt tolerance. In this review, we summarized various mechanisms by which endophytic fungi enhance plant salt tolerance. We also provided an overview of the challenges and development directions in the field of fungal symbiosis, with the aim of offering a viable strategy for the bioremediation of saline-alkali soils.
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Affiliation(s)
- Chengkai Zhang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
| | - Yue Meng
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
| | - Mengguang Zhao
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
| | - Mengliang Wang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
| | - Chao Wang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
| | - Jingyi Dong
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
| | - Wenbin Fan
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
| | - Fulei Xu
- Jiangsu Wolvbao Biological Technology Co., Ltd, Su'qian City, Jiangsu 223800, China
| | - Dandan Wang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, China.
| | - Zhihong Xie
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, China.
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Saravanan K, Elavarasi S, Revathi G, Karuppannan P, Ashokkumar M, Muthusamy C, Ram Kumar A. Targeting SARS-CoV2 spike glycoprotein: molecular insights into phytocompounds binding interactions - in-silico molecular docking. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024:1-18. [PMID: 39225011 DOI: 10.1080/09205063.2024.2399395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Accepted: 08/22/2024] [Indexed: 09/04/2024]
Abstract
This study utilized small molecular characterization and docking study to evaluate the binding affinity of seven antiviral phytocompounds with the SARS CoV-2 variants (SARS-CoV-2 Spike Glycoprotein, SARS-CoV-2 Spike Protein Variant in 1-RBD, Alpha Variant SARS-CoV2- Spike Protein). The results revealed that five of seven compounds, possesses excellent drug lead property reveled through in-silico ADMET analysis. In addition, six of seven except D-Glucosamine, exhibited excellent binding affinity. Six ligands possess significant binding affinity towards SARS-CoV-2 variants 6VXX, 7LWV and 7R13, which is certainly greater than Remdesivir. Fagaronine found to be the best drug candidate against SARS-CoV-2 variants, It was found that -7.4, -5.6 and -6.3 is the docking score respectively. Aranotin, Beta aescin, Gliotoxin, and Fagaronine formed hydrogen bonds with specific amino acids and exhibited significant binding interactions. These findings suggest that these phytocompounds could be promising candidates for developing antiviral therapies against SARS-CoV-2. Moreover, the study underscores the importance of molecular docking in understanding protein-ligand interactions and its role in drug discovery. The documented pharmacological properties of these compounds in the literature further support their potential therapeutic relevance in various diseases.
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Affiliation(s)
- K Saravanan
- PG and Research Dept. of Zoology, Nehru Memorial College (Autonomous), Puthanampatti, Thiruchirappalli, Tamilnadu, India
| | - S Elavarasi
- PG and Research Dept. of Zoology, Holy Cross College (Autonomous), Thiruchirappalli, Tamilnadu, India
| | - G Revathi
- PG and Research Dept. of Zoology, Nehru Memorial College (Autonomous), Puthanampatti, Thiruchirappalli, Tamilnadu, India
| | - P Karuppannan
- PG and Research Dept. of Zoology, Vivekananda College of Arts and Science for women (Autonomous), Tiruchengode, Tamilnadu, India
| | - M Ashokkumar
- Department of Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Thandalam, Chennai, India
| | - C Muthusamy
- Department of Food Technology, School of Liberal Arts and Applied Sciences, Hindustan Institute of Technology and Science, Padur, OMR, Chennai, Tamilnadu, India
| | - A Ram Kumar
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Thandalam, Chennai, Tamil Nadu, India
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6
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Song LY, Xu CQ, Zhang LD, Li J, Jiang LW, Ma DN, Guo ZJ, Wang Q, Wang XX, Zheng HL. Trehalose along with ABA promotes the salt tolerance of Avicennia marina by regulating Na + transport. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:2349-2362. [PMID: 38981025 DOI: 10.1111/tpj.16921] [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: 03/12/2024] [Revised: 06/06/2024] [Accepted: 06/26/2024] [Indexed: 07/11/2024]
Abstract
Mangroves grow in tropical/subtropical intertidal habitats with extremely high salt tolerance. Trehalose and trehalose-6-phosphate (T6P) have an alleviating function against abiotic stress. However, the roles of trehalose in the salt tolerance of salt-secreting mangrove Avicennia marina is not documented. Here, we found that trehalose was significantly accumulated in A. marina under salt treatment. Furthermore, exogenous trehalose can enhance salt tolerance by promoting the Na+ efflux from leaf salt gland and root to reduce the Na+ content in root and leaf. Subsequently, eighteen trehalose-6-phosphate synthase (AmTPS) and 11 trehalose-6-phosphate phosphatase (AmTPP) genes were identified from A. marina genome. Abscisic acid (ABA) responsive elements were predicted in AmTPS and AmTPP promoters by cis-acting elements analysis. We further identified AmTPS9A, as an important positive regulator, that increased the salt tolerance of AmTPS9A-overexpressing Arabidopsis thaliana by altering the expressions of ion transport genes and mediating Na+ efflux from the roots of transgenic A. thaliana under NaCl treatments. In addition, we also found that ABA could promote the accumulation of trehalose, and the application of exogenous trehalose significantly promoted the biosynthesis of ABA in both roots and leaves of A. marina. Ultimately, we confirmed that AmABF2 directly binds to the AmTPS9A promoter in vitro and in vivo. Taken together, we speculated that there was a positive feedback loop between trehalose and ABA in regulating the salt tolerance of A. marina. These findings provide new understanding to the salt tolerance of A. marina in adapting to high saline environment at trehalose and ABA aspects.
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Affiliation(s)
- Ling-Yu Song
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
| | - Chao-Qun Xu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
| | - Lu-Dan Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
- Houji Laboratory in Shanxi Province, Shanxi Agricultural University, Taiyuan, Shanxi, 030000, People's Republic of China
| | - Jing Li
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
| | - Li-Wei Jiang
- College of Horticulture, Henan Agricultural University, Zhengzhou, Henan, 450046, People's Republic of China
| | - Dong-Na Ma
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China
| | - Ze-Jun Guo
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
| | - Qian Wang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
| | - Xiu-Xiu Wang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
| | - Hai-Lei Zheng
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
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7
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Zhang M, Wu M, Xu T, Cao J, Zhang Z, Zhang T, Xie Q, Wang J, Sun S, Zhang Q, Ma R, Xie L. A putative Na +/H + antiporter BpSOS1 contributes to salt tolerance in birch. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 346:112181. [PMID: 38969141 DOI: 10.1016/j.plantsci.2024.112181] [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: 02/25/2024] [Revised: 04/24/2024] [Accepted: 07/02/2024] [Indexed: 07/07/2024]
Abstract
White birch (Betula platyphylla Suk.) is an important pioneer tree which plays a critical role in maintaining ecosystem stability and forest regeneration. The growth of birch is dramatically inhibited by salt stress, especially the root inhibition. Salt Overly Sensitive 1 (SOS1) is the only extensively characterized Na+ efflux transporter in multiple plant species. The salt-hypersensitive mutant, sos1, display significant inhibition of root growth by NaCl. However, the role of SOS1 in birch responses to salt stress remains unclear. Here, we characterized a putative Na+/H+ antiporter BpSOS1 in birch and generated the loss-of-function mutants of the birch BpSOS1 by CRISPR/Cas9 approach. The bpsos1 mutant exhibit exceptional increased salt sensitivity which links to excessive Na+ accumulation in root, stem and old leaves. We observed a dramatic reduction of K+ contents in leaves of the bpsos1 mutant plants under salt stress. Furthermore, the Na+/K+ ratio of roots and leaves is significant higher in the bpsos1 mutants than the wild-type plants under salt stress. The ability of Na+ efflux in the root meristem zone is found to be impaired which might result the imbalance of Na+ and K+ in the bpsos1 mutants. Our findings indicate that the Na+/H+ exchanger BpSOS1 plays a critical role in birch salt tolerance by maintaining Na+ homeostasis and provide evidence for molecular breeding to improve salt tolerance in birch and other trees.
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Affiliation(s)
- Minghui Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Mingke Wu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Tao Xu
- The Editorial Board of Journal of Forestry Research, Northeast Forestry University, Harbin, China
| | - Junfeng Cao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Zihui Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Tianxu Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Qingyi Xie
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Jiang Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Shanwen Sun
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Qingzhu Zhang
- School of Ecology, Northeast Forestry University, Harbin, 150040, China; The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China; State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China; Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Ecology, Northeast Forestry University, Harbin, 150040, China
| | - Renyi Ma
- Yunnan Key Laboratory of Biodiversity of Gaoligong Mountain, Yunnan Academy of Forestry and Grassland, Kunming, China.
| | - Linan Xie
- School of Ecology, Northeast Forestry University, Harbin, 150040, China; The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China; Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Ecology, Northeast Forestry University, Harbin, 150040, China.
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8
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Wang Z, Peng Z, Khan S, Qayyum A, Rehman A, Du X. Unveiling the power of MYB transcription factors: Master regulators of multi-stress responses and development in cotton. Int J Biol Macromol 2024; 276:133885. [PMID: 39019359 DOI: 10.1016/j.ijbiomac.2024.133885] [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: 02/03/2024] [Revised: 07/12/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
Plants, being immobile, are subject to environmental stresses more than other creatures, necessitating highly effective stress tolerance systems. Transcription factors (TFs) play a crucial role in the adaptation mechanism as they can be activated by diverse signals and ultimately control the expression of stress-responsive genes. One of the most prominent plant TFs family is MYB (myeloblastosis), which is involved in secondary metabolites, developmental mechanisms, biological processes, cellular architecture, metabolic pathways, and stress responses. Extensive research has been conducted on the involvement of MYB TFs in crops, while their role in cotton remains largely unexplored. We also utilized genome-wide data to discover potential 440 MYB genes and investigated their plausible roles in abiotic and biotic stress conditions, as well as in different tissues across diverse transcriptome databases. This review primarily summarized the structure and classification of MYB TFs biotic and abiotic stress tolerance and their role in secondary metabolism in different crops, especially in cotton. However, it intends to identify gaps in current knowledge and emphasize the need for further research to enhance our understanding of MYB roles in plants.
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Affiliation(s)
- Zhenzhen Wang
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan 455000, China; Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Zhen Peng
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan 455000, China
| | - Sana Khan
- Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad 38040, Pakistan
| | - Abdul Qayyum
- Department of Plant Breeding and Genetics, Bahauddin Zakariya University, Multan 66000, Pakistan
| | - Abdul Rehman
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan 455000, China.
| | - Xiongming Du
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan 455000, China.
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Surati U, Niranjan SK, Pundir RK, Koul Y, Vohra V, Gandham RK, Kumar A. Genome-wide comparative analyses highlight selection signatures underlying saline adaptation in Chilika buffalo. Physiol Genomics 2024; 56:609-620. [PMID: 38949516 DOI: 10.1152/physiolgenomics.00028.2024] [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: 03/06/2024] [Revised: 05/30/2024] [Accepted: 06/25/2024] [Indexed: 07/02/2024] Open
Abstract
Chilika, a native buffalo breed of the Eastern coast of India, is mainly distributed around the Chilika brackish water lake connected with the Bay of Bengal Sea. This breed possesses a unique ability to delve deep into the salty water of the lake and stay there to feed on local vegetation of saline nature. Adaptation to salinity is a genetic phenomenon; however, the genetic basis underlying salinity tolerance is still limited in animals, specifically in livestock. The present study explores the genetic evolution that unveils the Chilika buffalo's adaptation to the harsh saline habitat, including both water and food systems. For this study, whole genome resequencing data on 18 Chilika buffalo and for comparison 10 Murrah buffalo of normal habitat were generated. For identification of selection sweeps, intrapopulation and interpopulation statistics were used. A total of 709, 309, 468, and 354 genes were detected to possess selection sweeps in Chilika buffalo using the nucleotide diversity (θπ), Tajima's D, nucleotide diversity ratio (θπ-ratio), and FST methods, respectively. Further analysis revealed a total of 23 genes including EXOC6B, VPS8, LYPD1, VPS35, CAMKMT, NCKAP5, COMMD1, myosin light chain kinase 3 (MYLK3), and B3GNT2 were found to be common by all the methods. Furthermore, functional annotation study of identified genes provided pathways such as MAPK signaling, renin secretion, endocytosis, oxytocin signaling pathway, etc. Gene network analysis enlists that hub genes provide insights into their interactions with each other. In conclusion, this study has highlighted the genetic basis underlying the local adaptive function of Chilika buffalo under saline environment.NEW & NOTEWORTHY Indian Chilika buffaloes are being maintained on extensive grazing system and have a unique ability to convert local salty vegetation into valuable human food. However, adaptability to saline habitat of Chilika buffalo has not been explored to date. Here, we identified genes and biological pathways involved, such as MAPK signaling, renin secretion, endocytosis, and oxytocin signaling pathway, underlying adaptability of Chilika buffalo to saline environment. This investigation shed light on the mechanisms underlying the buffalo's resilience in its native surroundings.
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Affiliation(s)
- Utsav Surati
- ICAR-National Bureau of Animal Genetic Resources, Karnal, India
- ICAR-National Dairy Research Institute, Karnal, India
| | | | | | - Ymberzal Koul
- ICAR-National Bureau of Animal Genetic Resources, Karnal, India
- ICAR-National Dairy Research Institute, Karnal, India
| | - Vikas Vohra
- ICAR-National Dairy Research Institute, Karnal, India
| | | | - Amod Kumar
- ICAR-National Bureau of Animal Genetic Resources, Karnal, India
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Fang Y, Wang L, Liu K, Wu H, Zheng Y, Duan Y, Feng S, Wang Y. Genome-wide investigation of HD-ZIP gene family and functional characterization of BnaHDZ149 and BnaHDZ22 in salt and drought response in Brassica napus L. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 346:112130. [PMID: 38795751 DOI: 10.1016/j.plantsci.2024.112130] [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: 04/01/2024] [Revised: 05/08/2024] [Accepted: 05/18/2024] [Indexed: 05/28/2024]
Abstract
HD-ZIP proteins comprise a plant-specific transcription factor family, which play pivotal roles in plant development and adaptation to ever-changing environment. Although HD-ZIP family members have been identified in some plant species, so far our knowledge about HD-ZIP genes in rapeseed is still limited. In this study, 178 Brassica napus HD-ZIP (BnaHDZ) family members were identified in the rapeseed genome. The phylogenetic relationship, chromosomal locations, intron-exon structures, motif composition, and expression patterns of the BnaHDZ members were analyzed. The BnaHDZ family can be phylogenetically divided into four categories (Ⅰ, Ⅱ, Ⅲ and Ⅳ). Genome-wide transcriptome analysis revealed that most of the HD-ZIP I members respond to at least one abiotic stress. Two closely homologous stress-responsive HD-ZIP Ⅰ genes, BnaHDZ22 and BnaHDZ149, were identified to be involved in drought and salt responses, and selected for further functional characterization. Overexpressing BnaHDZ149 in rapeseed increased salt sensitivity of the transgenic plants, whereas overexpressing BnaHDZ22 increased sensitivity of the transgenic plants to polyethylene glycol (PEG)-simulated drought stress. This research provides not only a comprehensive landscape of BnaHDZ genes, but also a theoretical basis for elucidating the molecular mechanism of the abiotic stress responses of the HD-ZIP family in rapeseed.
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Affiliation(s)
- Yujie Fang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China.
| | - Lu Wang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Kuan Liu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Han Wu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Yuqian Zheng
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Yujing Duan
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Shanshan Feng
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Youping Wang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China.
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Farooq MA, Zeeshan Ul Haq M, Zhang L, Wu S, Mushtaq N, Tahir H, Wang Z. Transcriptomic Insights into Salt Stress Response in Two Pepper Species: The Role of MAPK and Plant Hormone Signaling Pathways. Int J Mol Sci 2024; 25:9355. [PMID: 39273302 PMCID: PMC11394676 DOI: 10.3390/ijms25179355] [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: 07/29/2024] [Revised: 08/23/2024] [Accepted: 08/28/2024] [Indexed: 09/15/2024] Open
Abstract
Salt stress imposes significant plant limitations, altering their molecular, physiological, and biochemical functions. Pepper, a valuable herbaceous plant species of the Solanaceae family, is particularly susceptible to salt stress. This study aimed to elucidate the physiological and molecular mechanisms that contribute to the development of salt tolerance in two pepper species (Capsicum baccatum (moderate salt tolerant) and Capsicum chinense (salt sensitive)) through a transcriptome and weighted gene co-expression network analysis (WGCNA) approach to provide detailed insights. A continuous increase in malondialdehyde (MDA) and hydrogen peroxide (H2O2) levels in C. chinense and higher activities of catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD) in C. baccatum indicated more tissue damage in C. chinense than in C. baccatum. In transcriptome analysis, we identified 39 DEGs related to salt stress. Meanwhile, KEGG pathway analysis revealed enrichment of MAPK and hormone signaling pathways, with six DEGs each. Through WGCNA, the ME.red module was identified as positively correlated. Moreover, 10 genes, A-ARR (CQW23_24856), CHIb (CQW23_04881), ERF1b (CQW23_08898), PP2C (CQW23_15893), ABI5 (CQW23_29948), P450 (CQW23_16085), Aldedh1 (CQW23_06433), GDA (CQW23_12764), Aldedh2 (CQW23_14182), and Aldedh3 (CQW23_11481), were validated by qRT-PCR. This study provides valuable insights into the genetic mechanisms underlying salt stress tolerance in pepper. It offers potential targets for future breeding efforts to enhance salt stress resilience in this crop.
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Affiliation(s)
- Muhammad Aamir Farooq
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Sanya 572025, China
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Muhammad Zeeshan Ul Haq
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Sanya 572025, China
| | - Liping Zhang
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Sanya 572025, China
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Shuhua Wu
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Sanya 572025, China
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Naveed Mushtaq
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Sanya 572025, China
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Hassam Tahir
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Sanya 572025, China
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Zhiwei Wang
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Sanya 572025, China
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
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Shang C, Sihui L, Li C, Hussain Q, Chen P, Hussain MA, Nkoh Nkoh J. SOS1 gene family in mangrove (Kandelia obovata): Genome-wide identification, characterization, and expression analyses under salt and copper stress. BMC PLANT BIOLOGY 2024; 24:805. [PMID: 39187766 PMCID: PMC11348747 DOI: 10.1186/s12870-024-05528-0] [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: 06/06/2024] [Accepted: 08/20/2024] [Indexed: 08/28/2024]
Abstract
BACKGROUND Salt Overly Sensitive 1 (SOS1), a plasma membrane Na+/H+ exchanger, is essential for plant salt tolerance. Salt damage is a significant abiotic stress that impacts plant species globally. All living organisms require copper (Cu), a necessary micronutrient and a protein cofactor for many biological and physiological processes. High Cu concentrations, however, may result in pollution that inhibits the growth and development of plants. The function and production of mangrove ecosystems are significantly impacted by rising salinity and copper contamination. RESULTS A genome-wide analysis and bioinformatics techniques were used in this study to identify 20 SOS1 genes in the genome of Kandelia obovata. Most of the SOS1 genes were found on the plasma membrane and dispersed over 11 of the 18 chromosomes. Based on phylogenetic analysis, KoSOS1s can be categorized into four groups, similar to Solanum tuberosum. Kandelia obovata's SOS1 gene family expanded due to tandem and segmental duplication. These SOS1 homologs shared similar protein structures, according to the results of the conserved motif analysis. The coding regions of 20 KoSOS1 genes consist of amino acids ranging from 466 to 1221, while the exons include amino acids ranging from 3 to 23. In addition, we found that the 2.0 kb upstream promoter region of the KoSOS1s gene contains several cis-elements associated with phytohormones and stress responses. According to the expression experiments, seven randomly chosen genes experienced up- and down-regulation of their expression levels in response to copper (CuCl2) and salt stressors. CONCLUSIONS For the first time, this work systematically identified SOS1 genes in Kandelia obovata. Our investigations also encompassed physicochemical properties, evolution, and expression patterns, thereby furnishing a theoretical framework for subsequent research endeavours aimed at functionally characterizing the Kandelia obovata SOS1 genes throughout the life cycle of plants.
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Affiliation(s)
- Chenjing Shang
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Public Service Platform for Collaborative Innovation of Marine Algae Industry, Guangdong Engineering Research Center for Marine Algal Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, People's Republic of China
- Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
| | - Li Sihui
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Public Service Platform for Collaborative Innovation of Marine Algae Industry, Guangdong Engineering Research Center for Marine Algal Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Chunyuan Li
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Public Service Platform for Collaborative Innovation of Marine Algae Industry, Guangdong Engineering Research Center for Marine Algal Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Quaid Hussain
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Public Service Platform for Collaborative Innovation of Marine Algae Industry, Guangdong Engineering Research Center for Marine Algal Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, People's Republic of China.
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China.
| | - Pengyu Chen
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Public Service Platform for Collaborative Innovation of Marine Algae Industry, Guangdong Engineering Research Center for Marine Algal Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Muhammad Azhar Hussain
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Public Service Platform for Collaborative Innovation of Marine Algae Industry, Guangdong Engineering Research Center for Marine Algal Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, People's Republic of China
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Jackson Nkoh Nkoh
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Public Service Platform for Collaborative Innovation of Marine Algae Industry, Guangdong Engineering Research Center for Marine Algal Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, People's Republic of China
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
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Wang J, Yan D, Liu R, Wang T, Lian Y, Lu Z, Hong Y, Wang Y, Li R. The Physiological and Molecular Mechanisms of Exogenous Melatonin Promote the Seed Germination of Maize ( Zea mays L.) under Salt Stress. PLANTS (BASEL, SWITZERLAND) 2024; 13:2142. [PMID: 39124260 PMCID: PMC11313997 DOI: 10.3390/plants13152142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 07/22/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024]
Abstract
Salt stress caused by high concentrations of Na+ and Cl- in soil is one of the most important abiotic stresses in agricultural production, which seriously affects grain yield. The alleviation of salt stress through the application of exogenous substances is important for grain production. Melatonin (MT, N-acetyl-5-methoxytryptamine) is an indole-like small molecule that can effectively alleviate the damage caused by adversity stress on crops. Current studies have mainly focused on the effects of MT on the physiology and biochemistry of crops at the seedling stage, with fewer studies on the gene regulatory mechanisms of crops at the germination stage. The aim of this study was to explain the mechanism of MT-induced salt tolerance at physiological, biochemical, and molecular levels and to provide a theoretical basis for the resolution of MT-mediated regulatory mechanisms of plant adaptation to salt stress. In this study, we investigated the germination, physiology, and transcript levels of maize seeds, analyzed the relevant differentially expressed genes (DEGs), and examined salt tolerance-related pathways. The results showed that MT could increase the seed germination rate by 14.28-19.04%, improve seed antioxidant enzyme activities (average increase of 11.61%), and reduce reactive oxygen species accumulation and membrane oxidative damage. In addition, MT was involved in regulating the changes of endogenous hormones during the germination of maize seeds under salt stress. Transcriptome results showed that MT affected the activity of antioxidant enzymes, response to stress, and seed germination-related genes in maize seeds under salt stress and regulated the expression of genes related to starch and sucrose metabolism and phytohormone signal transduction pathways. Taken together, the results indicate that exogenous MT can affect the expression of stress response-related genes in salt-stressed maize seeds, enhance the antioxidant capacity of the seeds, reduce the damage induced by salt stress, and thus promote the germination of maize seeds under salt stress. The results provide a theoretical basis for the MT-mediated regulatory mechanism of plant adaptation to salt stress and screen potential candidate genes for molecular breeding of salt-tolerant maize.
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Affiliation(s)
- Jiajie Wang
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China; (J.W.); (D.Y.); (R.L.); (T.W.); (Y.L.); (Z.L.); (Y.H.); (Y.W.)
| | - Di Yan
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China; (J.W.); (D.Y.); (R.L.); (T.W.); (Y.L.); (Z.L.); (Y.H.); (Y.W.)
| | - Rui Liu
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China; (J.W.); (D.Y.); (R.L.); (T.W.); (Y.L.); (Z.L.); (Y.H.); (Y.W.)
| | - Ting Wang
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China; (J.W.); (D.Y.); (R.L.); (T.W.); (Y.L.); (Z.L.); (Y.H.); (Y.W.)
| | - Yijia Lian
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China; (J.W.); (D.Y.); (R.L.); (T.W.); (Y.L.); (Z.L.); (Y.H.); (Y.W.)
| | - Zhenzong Lu
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China; (J.W.); (D.Y.); (R.L.); (T.W.); (Y.L.); (Z.L.); (Y.H.); (Y.W.)
| | - Yue Hong
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China; (J.W.); (D.Y.); (R.L.); (T.W.); (Y.L.); (Z.L.); (Y.H.); (Y.W.)
| | - Ye Wang
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China; (J.W.); (D.Y.); (R.L.); (T.W.); (Y.L.); (Z.L.); (Y.H.); (Y.W.)
- Beijing Key Laboratory for Agricultural Application and New Technique, Beijing 102206, China
| | - Runzhi Li
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China; (J.W.); (D.Y.); (R.L.); (T.W.); (Y.L.); (Z.L.); (Y.H.); (Y.W.)
- Beijing Key Laboratory for Agricultural Application and New Technique, Beijing 102206, China
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Dai R, Zhan N, Geng R, Xu K, Zhou X, Li L, Yan G, Zhou F, Cai G. Progress on Salt Tolerance in Brassica napus. PLANTS (BASEL, SWITZERLAND) 2024; 13:1990. [PMID: 39065517 PMCID: PMC11281035 DOI: 10.3390/plants13141990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/13/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024]
Abstract
In China, saline-alkali lands constitute 5.01% of the total land area, having a significant impact on both domestic and international food production. Rapeseed (Brassica napus L.), as one of the most important oilseed crops in China, has garnered considerable attention due to its potential adaptability to saline conditions. Breeding and improving salt-tolerant varieties is a key strategy for the effective utilization of saline lands. Hence, it is important to conduct comprehensive research into the adaptability and salt tolerance mechanisms of Brassica napus in saline environments as well as to breed novel salt-tolerant varieties. This review summarizes the molecular mechanism of salt tolerance, physiological and phenotypic indexes, research strategies for the screening of salt-tolerant germplasm resources, and genetic engineering tools for salt stress in Brassica napus. It also introduces various agronomic strategies for applying exogenous substances to alleviate salt stress and provide technological tools and research directions for future research on salt tolerance in Brassica napus.
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Affiliation(s)
- Rui Dai
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (R.D.); (N.Z.); (R.G.); (K.X.); (X.Z.); (L.L.); (G.Y.)
| | - Na Zhan
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (R.D.); (N.Z.); (R.G.); (K.X.); (X.Z.); (L.L.); (G.Y.)
| | - Rudan Geng
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (R.D.); (N.Z.); (R.G.); (K.X.); (X.Z.); (L.L.); (G.Y.)
| | - Kun Xu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (R.D.); (N.Z.); (R.G.); (K.X.); (X.Z.); (L.L.); (G.Y.)
| | - Xiangchun Zhou
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (R.D.); (N.Z.); (R.G.); (K.X.); (X.Z.); (L.L.); (G.Y.)
| | - Lixia Li
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (R.D.); (N.Z.); (R.G.); (K.X.); (X.Z.); (L.L.); (G.Y.)
| | - Guixin Yan
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (R.D.); (N.Z.); (R.G.); (K.X.); (X.Z.); (L.L.); (G.Y.)
| | - Fanglin Zhou
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (R.D.); (N.Z.); (R.G.); (K.X.); (X.Z.); (L.L.); (G.Y.)
| | - Guangqin Cai
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (R.D.); (N.Z.); (R.G.); (K.X.); (X.Z.); (L.L.); (G.Y.)
- Hubei Hongshan Laboratory, Wuhan 430070, China
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Ren Y, Jiang M, Zhu JK, Zhou W, Zhao C. Simultaneous mutations in ITPK4 and MRP5 genes result in a low phytic acid level without compromising salt tolerance in Arabidopsis. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024. [PMID: 39031490 DOI: 10.1111/jipb.13745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 07/02/2024] [Indexed: 07/22/2024]
Abstract
Generation of crops with low phytic acid (myo-inositol-1,2,3,4,5,6-hexakisphosphate (InsP6)) is an important breeding direction, but such plants often display less desirable agronomic traits. In this study, through ethyl methanesulfonate-mediated mutagenesis, we found that inositol 1,3,4-trisphosphate 5/6-kinase 4 (ITPK4), which is essential for producing InsP6, is a critical regulator of salt tolerance in Arabidopsis. Loss of function of ITPK4 gene leads to reduced root elongation under salt stress, which is primarily because of decreased root meristem length and reduced meristematic cell number. The itpk4 mutation also results in increased root hair density and increased accumulation of reactive oxygen species during salt exposure. RNA sequencing assay reveals that several auxin-responsive genes are down-regulated in the itpk4-1 mutant compared to the wild-type. Consistently, the itpk4-1 mutant exhibits a reduced auxin level in the root tip and displays compromised gravity response, indicating that ITPK4 is involved in the regulation of the auxin signaling pathway. Through suppressor screening, it was found that mutation of Multidrug Resistance Protein 5 (MRP5)5 gene, which encodes an ATP-binding cassette (ABC) transporter required for transporting InsP6 from the cytoplasm into the vacuole, fully rescues the salt hypersensitivity of the itpk4-1 mutant, but in the itpk4-1 mrp5 double mutant, InsP6 remains at a very low level. These results imply that InsP6 homeostasis rather than its overall amount is beneficial for stress tolerance in plants. Collectively, this study uncovers a pair of gene mutations that confer low InsP6 content without impacting stress tolerance, which offers a new strategy for creating "low-phytate" crops.
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Affiliation(s)
- Yuying Ren
- Key Laboratory of Plant Design, National Key Laboratory of Plant Molecular Genetics, Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 200032, China
- University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Mengdan Jiang
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Jian-Kang Zhu
- Institute of Advanced Biotechnology and School of Life Sciences, Southern University of Science and Technology, Shenzhen, 518055, China
- Ministry of Agriculture and Rural Affairs Key Laboratory of Gene Editing Technologies, Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, 572024, China
| | - Wenkun Zhou
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Chunzhao Zhao
- Key Laboratory of Plant Design, National Key Laboratory of Plant Molecular Genetics, Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 200032, China
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Wang X, Ma J, He F, Wang L, Zhang T, Liu D, Xu Y, Li F, Feng X. A Study on the Functional Identification of Overexpressing Winter Wheat Expansin Gene TaEXPA7-B in Rice under Salt Stress. Int J Mol Sci 2024; 25:7707. [PMID: 39062950 PMCID: PMC11277075 DOI: 10.3390/ijms25147707] [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: 05/28/2024] [Revised: 07/03/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024] Open
Abstract
Expansin is a cell wall relaxant protein that is common in plants and directly or indirectly participates in the whole process of plant root growth, development and morphogenesis. A well-developed root system helps plants to better absorb water and nutrients from the soil while effectively assisting them in resisting osmotic stress, such as salt stress. In this study, we observed and quantified the morphology of the roots of Arabidopsis overexpressing the TaEXPAs gene obtained by the research group in the early stage of development. We combined the bioinformatics analysis results relating to EXPA genes in five plants and identified TaEXPA7-B, a member of the EXPA family closely related to root development in winter wheat. Subcellular localization analysis of the TaEXPA7-B protein showed that it is located in the plant cell wall. In this study, the TaEXPA7-B gene was overexpressed in rice. The results showed that plant height, root length and the number of lateral roots of rice overexpressing the TaEXPA7-B gene were significantly higher than those of the wild type, and the expression of the TaEXPA7-B gene significantly promoted the growth of lateral root primordium and cortical cells. The plants were treated with 250 mM NaCl solution to simulate salt stress. The results showed that the accumulation of osmotic regulators, cell wall-related substances and the antioxidant enzyme activities of the overexpressed plants were higher than those of the wild type, and they had better salt tolerance. This paper discusses the effects of winter wheat expansins in plant root development and salt stress tolerance and provides a theoretical basis and relevant reference for screening high-quality expansin regulating root development and salt stress resistance in winter wheat and its application in crop molecular breeding.
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Affiliation(s)
| | | | | | | | | | | | | | - Fenglan Li
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (X.W.); (J.M.); (F.H.); (L.W.); (T.Z.); (D.L.); (Y.X.)
| | - Xu Feng
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (X.W.); (J.M.); (F.H.); (L.W.); (T.Z.); (D.L.); (Y.X.)
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17
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Yao H, Li G, Gao Z, Guo F, Feng J, Xiao G, Shen H, Li H. Alternative splicing responses to salt stress in Glycyrrhiza uralensis revealed by global profiling of transcriptome RNA-seq datasets. Front Genet 2024; 15:1397502. [PMID: 39045328 PMCID: PMC11263197 DOI: 10.3389/fgene.2024.1397502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 05/28/2024] [Indexed: 07/25/2024] Open
Abstract
Excessive reactive oxygen species stress due to salinity poses a significant threat to the growth of Glycyrrhiza uralensis Fisch. To adapt to salt stress, G. uralensis engages in alternative splicing (AS) to generate a variety of proteins that help it withstand the effects of salt stress. While several studies have investigated the impact of alternative splicing on plants stress responses, the mechanisms by which AS interacts with transcriptional regulation to modulate the salt stress response in G. uralensis remain poorly understood. In this study, we utilized high-throughput RNA sequencing data to perform a comprehensive analysis of AS events at various time points in G. uralensis under salt stress, with exon skipping (SE) being the predominant AS type. KEGG enrichment analysis was performed on the different splicing genes (DSG), and pathways associated with AS were significantly enriched, including RNA transport, mRNA surveillance, and spliceosome. This indicated splicing regulation of genes, resulting in AS events under salt stress conditions. Moreover, plant response to salt stress pathways were also enriched, such as mitogen-activated protein kinase signaling pathway - plant, flavonoid biosynthesis, and oxidative phosphorylation. We focused on four differentially significant genes in the MAPK pathway by AS and qRT-PCR analysis. The alternative splicing type of MPK4 and SnRK2 was skipped exon (SE). ETR2 and RbohD were retained intron (RI) and alternative 5'splice site (A5SS), respectively. The expression levels of isoform1 of these four genes displayed different but significant increases in different tissue sites and salt stress treatment times. These findings suggest that MPK4, SnRK2, ETR2, and RbohD in G. uralensis activate the expression of isoform1, leading to the production of more isoform1 protein and thereby enhancing resistance to salt stress. These findings suggest that salt-responsive AS directly and indirectly governs G. uralensis salt response. Further investigations into AS function and mechanism during abiotic stresses may offer novel references for bolstering plant stress tolerance.
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Affiliation(s)
- Hua Yao
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Key Laboratory of Oasis Town and Mountain-Basin System Ecology of Xinjiang Production and Construction Corps, College of Life Sciences, Shihezi University, Shihezi, China
| | - Guozhi Li
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Key Laboratory of Oasis Town and Mountain-Basin System Ecology of Xinjiang Production and Construction Corps, College of Life Sciences, Shihezi University, Shihezi, China
| | - Zhuanzhuan Gao
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Key Laboratory of Oasis Town and Mountain-Basin System Ecology of Xinjiang Production and Construction Corps, College of Life Sciences, Shihezi University, Shihezi, China
| | - Fei Guo
- Zhuhai College of Science and Technology, Zhuhai, China
| | - Jianghua Feng
- Business School of Xinjiang Normal University, Urumqi, China
| | - Guanghui Xiao
- College of Life Sciences, Shaanxi Normal University, Xi’an, China
| | - Haitao Shen
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Key Laboratory of Oasis Town and Mountain-Basin System Ecology of Xinjiang Production and Construction Corps, College of Life Sciences, Shihezi University, Shihezi, China
| | - Hongbin Li
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Key Laboratory of Oasis Town and Mountain-Basin System Ecology of Xinjiang Production and Construction Corps, College of Life Sciences, Shihezi University, Shihezi, China
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18
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Tang J, Ji X, Li A, Zheng X, Zhang Y, Zhang J. Effect of Persistent Salt Stress on the Physiology and Anatomy of Hybrid Walnut ( Juglans major × Juglans regia) Seedlings. PLANTS (BASEL, SWITZERLAND) 2024; 13:1840. [PMID: 38999680 PMCID: PMC11244109 DOI: 10.3390/plants13131840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/27/2024] [Accepted: 07/01/2024] [Indexed: 07/14/2024]
Abstract
Soil salinization has become one of the major problems that threaten the ecological environment. The aim of this study is to explore the mechanism of salt tolerance of hybrid walnuts (Juglans major × Juglans regia) under long-term salt stress through the dynamic changes of growth, physiological and biochemical characteristics, and anatomical structure. Our findings indicate that (1) salt stress inhibited seedling height and ground diameter increase, and (2) with increasing salt concentration, relative water content (RWC) decreased, and proline (Pro) and soluble sugar (SS) content increased. The Pro content reached a maximum of 549.64 μg/g on the 42nd day. The increase in superoxide dismutase (SOD) activity (46.80-117.16%), ascorbate peroxidase (APX) activity, total flavonoid content (TFC), and total phenol content (TPC) under salt stress reduced the accumulation of malondialdehyde (MDA). (3) Increasing salt concentration led to increases and subsequent decreases in the thickness of palisade tissues, spongy tissues, leaves, and leaf vascular bundle diameter. Upper and lower skin thickness, root periderm thickness, root diameter, root cortex thickness, and root vascular bundle diameter showed different patterns of change at varying stress concentrations and durations. Overall, the study concluded that salt stress enhanced the antireactive oxygen system, increased levels of osmotic regulators, and low salt concentrations promoted leaf and root anatomy, but that under long-term exposure to high salt levels, leaf anatomy was severely damaged. For the first time, this study combined the anatomical structure of the vegetative organ of hybrid walnut with physiology and biochemistry, which is of great significance for addressing the challenge of walnut salt stress and expanding the planting area.
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Affiliation(s)
- Jiali Tang
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Xinying Ji
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Ao Li
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Xu Zheng
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Yutong Zhang
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100091, China
| | - Junpei Zhang
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
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19
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Chen C, Zhang Z, Lei Y, Chen W, Zhang Z, Dai H. The transcription factor MdERF023 negatively regulates salt tolerance by modulating ABA signaling and Na +/H + transport in apple. PLANT CELL REPORTS 2024; 43:187. [PMID: 38958739 DOI: 10.1007/s00299-024-03272-1] [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: 05/06/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
KEY MESSAGE MdERF023 is a transcription factor that can reduce salt tolerance by inhibiting ABA signaling and Na+/H+ homeostasis. Salt stress is one of the principal environmental stresses limiting the growth and productivity of apple (Malus × domestica). The APETALA2/ethylene response factor (AP2/ERF) family plays key roles in plant growth and various stress responses; however, the regulatory mechanism involved has not been fully elucidated. In the present study, we identified an AP2/ERF transcription factor (TF), MdERF023, which plays a negative role in apple salt tolerance. Stable overexpression of MdERF023 in apple plants and calli significantly decreased salt tolerance. Biochemical and molecular analyses revealed that MdERF023 directly binds to the promoter of MdMYB44-like, a positive modulator of ABA signaling-mediated salt tolerance, and suppresses its transcription. In addition, MdERF023 downregulated the transcription of MdSOS2 and MdAKT1, thereby reducing the Na+ expulsion, K+ absorption, and salt tolerance of apple plants. Taken together, these results suggest that MdERF023 reduces apple salt tolerance by inhibiting ABA signaling and ion transport, and that it could be used as a potential target for breeding new varieties of salt-tolerant apple plants via genetic engineering.
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Affiliation(s)
- Cui Chen
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Zhen Zhang
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Yingying Lei
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Wenjun Chen
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Zhihong Zhang
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Hongyan Dai
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China.
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20
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Zou J, Mitra K, Anees P, Oettinger D, Ramirez JR, Veetil AT, Gupta PD, Rao R, Smith JJ, Kratsios P, Krishnan Y. A DNA nanodevice for mapping sodium at single-organelle resolution. Nat Biotechnol 2024; 42:1075-1083. [PMID: 37735265 PMCID: PMC11004682 DOI: 10.1038/s41587-023-01950-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 08/15/2023] [Indexed: 09/23/2023]
Abstract
Cellular sodium ion (Na+) homeostasis is integral to organism physiology. Our current understanding of Na+ homeostasis is largely limited to Na+ transport at the plasma membrane. Organelles may also contribute to Na+ homeostasis; however, the direction of Na+ flow across organelle membranes is unknown because organellar Na+ cannot be imaged. Here we report a pH-independent, organelle-targetable, ratiometric probe that reports lumenal Na+. It is a DNA nanodevice containing a Na+-sensitive fluorophore, a reference dye and an organelle-targeting domain. By measuring Na+ at single endosome resolution in mammalian cells and Caenorhabditis elegans, we discovered that lumenal Na+ levels in each stage of the endolysosomal pathway exceed cytosolic levels and decrease as endosomes mature. Further, we find that lysosomal Na+ levels in nematodes are modulated by the Na+/H+ exchanger NHX-5 in response to salt stress. The ability to image subcellular Na+ will unveil mechanisms of Na+ homeostasis at an increased level of cellular detail.
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Affiliation(s)
- Junyi Zou
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Neuroscience Institute, The University of Chicago, Chicago, IL, USA
| | - Koushambi Mitra
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Neuroscience Institute, The University of Chicago, Chicago, IL, USA
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL, USA
| | - Palapuravan Anees
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Neuroscience Institute, The University of Chicago, Chicago, IL, USA
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL, USA
| | - Daphne Oettinger
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Neuroscience Institute, The University of Chicago, Chicago, IL, USA
| | - Joseph R Ramirez
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Neuroscience Institute, The University of Chicago, Chicago, IL, USA
| | - Aneesh Tazhe Veetil
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Neuroscience Institute, The University of Chicago, Chicago, IL, USA
| | - Priyanka Dutta Gupta
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Neuroscience Institute, The University of Chicago, Chicago, IL, USA
| | - Rajini Rao
- Department of Physiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jayson J Smith
- Neuroscience Institute, The University of Chicago, Chicago, IL, USA
- Department of Neurobiology, The University of Chicago, Chicago, IL, USA
| | - Paschalis Kratsios
- Neuroscience Institute, The University of Chicago, Chicago, IL, USA
- Department of Neurobiology, The University of Chicago, Chicago, IL, USA
| | - Yamuna Krishnan
- Department of Chemistry, The University of Chicago, Chicago, IL, USA.
- Neuroscience Institute, The University of Chicago, Chicago, IL, USA.
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL, USA.
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21
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Miao R, Zhang Y, Liu X, Yuan Y, Zang W, Li Z, Yan X, Pang Q, Zhang A. Histone variant H2A.Z is required for plant salt response by regulating gene transcription. PLANT, CELL & ENVIRONMENT 2024; 47:2693-2709. [PMID: 38576334 DOI: 10.1111/pce.14908] [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: 10/11/2022] [Revised: 02/11/2024] [Accepted: 03/24/2024] [Indexed: 04/06/2024]
Abstract
As a well-conserved histone variant, H2A.Z epigenetically regulates plant growth and development as well as the interaction with environmental factors. However, the role of H2A.Z in response to salt stress remains unclear, and whether nucleosomal H2A.Z occupancy work on the gene responsiveness upon salinity is obscure. Here, we elucidate the involvement of H2A.Z in salt response by analysing H2A.Z disorder plants with impaired or overloaded H2A.Z deposition. The salt tolerance is dramatically accompanied by H2A.Z deficiency and reacquired in H2A.Z OE lines. H2A.Z disorder changes the expression profiles of large-scale of salt responsive genes, announcing that H2A.Z is required for plant salt response. Genome-wide H2A.Z mapping shows that H2A.Z level is induced by salt condition across promoter, transcriptional start site (TSS) and transcription ending sites (-1 kb to +1 kb), the peaks preferentially enrich at promoter regions near TSS. We further show that H2A.Z deposition within TSS provides a direct role on transcriptional control, which has both repressive and activating effects, while it is found generally H2A.Z enrichment negatively correlate with gene expression level response to salt stress. This study shed light on the H2A.Z function in salt tolerance, highlighting the complex regulatory mechanisms of H2A.Z on transcriptional activity for yielding appropriate responses to particularly environmental stress.
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Affiliation(s)
- Rongqing Miao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Yue Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Xinxin Liu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Yue Yuan
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Wei Zang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Zhiqi Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Xiufeng Yan
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, China
| | - Qiuying Pang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Aiqin Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
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22
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Amir M, Raheem A, Yadav P, Kumar V, Tewari RK, Jalil SU, Danish M, Ansari MI. Phytofabricated gold nanoparticles as modulators of salt stress responses in spinach: implications for redox homeostasis, biochemical and physiological adaptation. FRONTIERS IN PLANT SCIENCE 2024; 15:1408642. [PMID: 38957605 PMCID: PMC11217327 DOI: 10.3389/fpls.2024.1408642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 05/28/2024] [Indexed: 07/04/2024]
Abstract
Introduction The utilization of plant material for synthesizing nanoparticles effectively triggers physiological and biochemical responses in plants to combat abiotic stresses. Salt stress, particularly caused by NaCl, significantly affects plant morphology and physiology, leading to reduced crop yields. Understanding the mechanisms of salt tolerance is crucial for maintaining crop productivity. Methods In this study, we examined the effects of 150 μM spinach-assisted gold nanoparticles (S-AuNPs) on various parameters related to seed germination, growth attributes, photosynthetic pigments, stomatal traits, ion concentrations, stress markers, antioxidants, metabolites, and nutritional contents of spinach plants irrigated with 50 mM NaCl. Results Results showed that S-AuNPs enhanced chlorophyll levels, leading to improved light absorption, increased photosynthates production, higher sugar content, and stimulated plant growth under NaCl stress. Stomatal traits were improved, and partially closed stomata were reopened with S-AuNPs treatment, possibly due to K+/Na+ modulation, resulting in enhanced relative water content and stomatal conductance. ABA content decreased under S-AuNPs application, possibly due to K+ ion accumulation. S-AuNPs supplementation increased proline and flavonoid contents while reducing ROS accumulation and lipid peroxidation via activation of both non-enzymatic and enzymatic antioxidants. S-AuNPs also regulated the ionic ratio of K+/Na+, leading to decreased Na+ accumulation and increased levels of essential ions in spinach plants under NaCl irrigation. Discussion Overall, these findings suggest that S-AuNPs significantly contribute to salt stress endurance in spinach plants by modulating various physiological attributes.
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Affiliation(s)
- Mohammad Amir
- Department of Botany, University of Lucknow, Lucknow, India
| | - Abdul Raheem
- Department of Botany, University of Lucknow, Lucknow, India
| | | | - Vijay Kumar
- Department of Botany, University of Lucknow, Lucknow, India
| | | | - Syed Uzma Jalil
- Amity Institutes of Biotechnology, Amity University, Lucknow, India
| | - Mohammad Danish
- Botany section, Maulana Azad National Urdu University, Hydrabad, India
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Liu L, Gong Y, Yahaya BS, Chen Y, Shi D, Liu F, Gou J, Zhou Z, Lu Y, Wu F. Maize auxin response factor ZmARF1 confers multiple abiotic stresses resistances in transgenic Arabidopsis. PLANT MOLECULAR BIOLOGY 2024; 114:75. [PMID: 38878261 DOI: 10.1007/s11103-024-01470-9] [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: 10/29/2023] [Accepted: 05/12/2024] [Indexed: 06/29/2024]
Abstract
Prolonged exposure to abiotic stresses causes oxidative stress, which affects plant development and survival. In this research, the overexpression of ZmARF1 improved tolerance to low Pi, drought and salinity stresses. The transgenic plants manifested tolerance to low Pi by their superior root phenotypic traits: root length, root tips, root surface area, and root volume, compared to wide-type (WT) plants. Moreover, the transgenic plants exhibited higher root and leaf Pi content and upregulated the high affinity Pi transporters PHT1;2 and phosphorus starvation inducing (PSI) genes PHO2 and PHR1 under low Pi conditions. Transgenic Arabidopsis displayed tolerance to drought and salt stress by maintaining higher chlorophyll content and chlorophyll fluorescence, lower water loss rates, and ion leakage, which contributed to the survival of overexpression lines compared to the WT. Transcriptome profiling identified a peroxidase gene, POX, whose transcript was upregulated by these abiotic stresses. Furthermore, we confirmed that ZmARF1 bound to the auxin response element (AuxRE) in the promoter of POX and enhanced its transcription to mediate tolerance to oxidative stress imposed by low Pi, drought and salt stress in the transgenic seedlings. These results demonstrate that ZmARF1 has significant potential for improving the tolerance of crops to multiple abiotic stresses.
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Affiliation(s)
- Ling Liu
- Faculty of Agriculture, Forestry and Food Engineering, Yibin University, Yibin, 644000, Sichuan, China
- Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Ying Gong
- Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Wenjiang, Chengdu, Sichuan, China
| | - Baba Salifu Yahaya
- Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Wenjiang, Chengdu, Sichuan, China
| | - Yushu Chen
- Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Wenjiang, Chengdu, Sichuan, China
| | - Dengke Shi
- Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Wenjiang, Chengdu, Sichuan, China
| | - Fangyuan Liu
- Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Wenjiang, Chengdu, Sichuan, China
| | - Junlin Gou
- Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Wenjiang, Chengdu, Sichuan, China
| | - Zhanmei Zhou
- Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Wenjiang, Chengdu, Sichuan, China
| | - Yanli Lu
- Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Wenjiang, Chengdu, Sichuan, China.
| | - Fengkai Wu
- Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Wenjiang, Chengdu, Sichuan, China.
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24
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Liu M, Ma L, Tang Y, Yang W, Yang Y, Xi J, Wang X, Zhu W, Xue J, Zhang X, Xu S. Maize Autophagy-Related Protein ZmATG3 Confers Tolerance to Multiple Abiotic Stresses. PLANTS (BASEL, SWITZERLAND) 2024; 13:1637. [PMID: 38931070 PMCID: PMC11207562 DOI: 10.3390/plants13121637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/05/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
Abiotic stresses pose a major increasing problem for the cultivation of maize. Autophagy plays a vital role in recycling and re-utilizing nutrients and adapting to stress. However, the role of autophagy in the response to abiotic stress in maize has not yet been investigated. Here, ZmATG3, which is essential for ATG8-PE conjugation, was isolated from the maize inbred line B73. The ATG3 sequence was conserved, including the C-terminal domains with HPC and FLKF motifs and the catalytic domain in different species. The promoter of the ZmATG3 gene contained a number of elements involved in responses to environmental stresses or hormones. Heterologous expression of ZmATG3 in yeast promoted the growth of strain under salt, mannitol, and low-nitrogen stress. The expression of ZmATG3 could be altered by various types of abiotic stress (200 mM NaCl, 200 mM mannitol, low N) and exogenous hormones (500 µM ABA). GUS staining analysis of ZmATG3-GUS transgenic Arabidopsis revealed that GUS gene activity increased after abiotic treatment. ZmATG3-overexpressing Arabidopsis plants had higher osmotic and salinity stress tolerance than wild-type plants. Overexpression of ZmATG3 up-regulated the expression of other AtATGs (AtATG3, AtATG5, and AtATG8b) under NaCl, mannitol and LN stress. These findings demonstrate that overexpression of ZmATG3 can improve tolerance to multiple abiotic stresses.
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Affiliation(s)
- Mengli Liu
- Key Laboratory of Biology and Genetic Breeding of Maize in Arid Area of Northwest Region, College of Agronomy, Northwest A&F University, Yangling 712100, China; (M.L.); (L.M.); (Y.T.); (W.Y.); (Y.Y.); (J.X.); (W.Z.); (J.X.)
| | - Li Ma
- Key Laboratory of Biology and Genetic Breeding of Maize in Arid Area of Northwest Region, College of Agronomy, Northwest A&F University, Yangling 712100, China; (M.L.); (L.M.); (Y.T.); (W.Y.); (Y.Y.); (J.X.); (W.Z.); (J.X.)
| | - Yao Tang
- Key Laboratory of Biology and Genetic Breeding of Maize in Arid Area of Northwest Region, College of Agronomy, Northwest A&F University, Yangling 712100, China; (M.L.); (L.M.); (Y.T.); (W.Y.); (Y.Y.); (J.X.); (W.Z.); (J.X.)
| | - Wangjin Yang
- Key Laboratory of Biology and Genetic Breeding of Maize in Arid Area of Northwest Region, College of Agronomy, Northwest A&F University, Yangling 712100, China; (M.L.); (L.M.); (Y.T.); (W.Y.); (Y.Y.); (J.X.); (W.Z.); (J.X.)
| | - Yuyin Yang
- Key Laboratory of Biology and Genetic Breeding of Maize in Arid Area of Northwest Region, College of Agronomy, Northwest A&F University, Yangling 712100, China; (M.L.); (L.M.); (Y.T.); (W.Y.); (Y.Y.); (J.X.); (W.Z.); (J.X.)
| | - Jing Xi
- Key Laboratory of Biology and Genetic Breeding of Maize in Arid Area of Northwest Region, College of Agronomy, Northwest A&F University, Yangling 712100, China; (M.L.); (L.M.); (Y.T.); (W.Y.); (Y.Y.); (J.X.); (W.Z.); (J.X.)
| | - Xuan Wang
- Yangling Qinfeng Seed-Industry Co., Ltd., Yangling 712100, China;
| | - Wanchao Zhu
- Key Laboratory of Biology and Genetic Breeding of Maize in Arid Area of Northwest Region, College of Agronomy, Northwest A&F University, Yangling 712100, China; (M.L.); (L.M.); (Y.T.); (W.Y.); (Y.Y.); (J.X.); (W.Z.); (J.X.)
| | - Jiquan Xue
- Key Laboratory of Biology and Genetic Breeding of Maize in Arid Area of Northwest Region, College of Agronomy, Northwest A&F University, Yangling 712100, China; (M.L.); (L.M.); (Y.T.); (W.Y.); (Y.Y.); (J.X.); (W.Z.); (J.X.)
| | - Xinghua Zhang
- Key Laboratory of Biology and Genetic Breeding of Maize in Arid Area of Northwest Region, College of Agronomy, Northwest A&F University, Yangling 712100, China; (M.L.); (L.M.); (Y.T.); (W.Y.); (Y.Y.); (J.X.); (W.Z.); (J.X.)
| | - Shutu Xu
- Key Laboratory of Biology and Genetic Breeding of Maize in Arid Area of Northwest Region, College of Agronomy, Northwest A&F University, Yangling 712100, China; (M.L.); (L.M.); (Y.T.); (W.Y.); (Y.Y.); (J.X.); (W.Z.); (J.X.)
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25
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Zhao Y, Sun T, Liu J, Zhang R, Yu Y, Zhou G, Liu J, Gao B. The Key Role of Plant Hormone Signaling Transduction and Flavonoid Biosynthesis Pathways in the Response of Chinese Pine ( Pinus tabuliformis) to Feeding Stimulation by Pine Caterpillar ( Dendrolimus tabulaeformis). Int J Mol Sci 2024; 25:6354. [PMID: 38928063 PMCID: PMC11203464 DOI: 10.3390/ijms25126354] [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: 05/07/2024] [Revised: 06/01/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
In nature, plants have developed a series of resistance mechanisms to face various external stresses. As understanding of the molecular mechanisms underlying plant resistance continues to deepen, exploring endogenous resistance in plants has become a hot topic in this field. Despite the multitude of studies on plant-induced resistance, how plants respond to stress under natural conditions remains relatively unclear. To address this gap, we investigated Chinese pine (Pinus tabuliformis) using pine caterpillar (Dendrolimus tabulaeformis) under natural conditions. Healthy Chinese pine trees, approximately 10 years old, were selected for studying induced resistance in Huangtuliangzi Forestry, Pingquan City, Chengde City, Hebei Province, China. Pine needles were collected at 2 h and 8 h after feeding stimulation (FS) via 10 pine caterpillars and leaf clipping control (LCC), to simulate mechanical damage caused by insect chewing for the quantification of plant hormones and transcriptome and metabolome assays. The results show that the different modes of treatments significantly influence the contents of JA and SA in time following treatment. Three types of differentially accumulated metabolites (DAMs) were found to be involved in the initial response, namely phenolic acids, lipids, and flavonoids. Weighted gene co-expression network analysis indicated that 722 differentially expressed genes (DEGs) are positively related to feeding stimulation and the specific enriched pathways are plant hormone signal transduction and flavonoid biosynthesis, among others. Two TIFY transcription factors (PtTIFY54 and PtTIFY22) and a MYB transcription factor (PtMYB26) were found to be involved in the interaction between plant hormones, mainly in the context of JA signal transduction and flavonoid biosynthesis. The results of this study provide an insight into how JA activates, serving as a reference for understanding the molecular mechanisms of resistance formation in conifers responding to mandibulate insects.
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Affiliation(s)
- Yanan Zhao
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Tianhua Sun
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Jie Liu
- College of Agronomy, Hebei Agricultural University, Baoding 071000, China;
| | - Ruibo Zhang
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Yongjie Yu
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Guona Zhou
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Junxia Liu
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Baojia Gao
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
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26
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Li X, Ma Q, Wang X, Zhong Y, Zhang Y, Zhang P, Du Y, Luo H, Chen Y, Li X, Li Y, He R, Zhou Y, Li Y, Cheng M, He J, Rong T, Tang Q. A teosinte-derived allele of ZmSC improves salt tolerance in maize. FRONTIERS IN PLANT SCIENCE 2024; 15:1361422. [PMID: 38903442 PMCID: PMC11188391 DOI: 10.3389/fpls.2024.1361422] [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: 12/26/2023] [Accepted: 04/29/2024] [Indexed: 06/22/2024]
Abstract
Maize, a salt-sensitive crop, frequently suffers severe yield losses due to soil salinization. Enhancing salt tolerance in maize is crucial for maintaining yield stability. To address this, we developed an introgression line (IL76) through introgressive hybridization between maize wild relatives Zea perennis, Tripsacum dactyloides, and inbred Zheng58, utilizing the tri-species hybrid MTP as a genetic bridge. Previously, genetic variation analysis identified a polymorphic marker on Zm00001eb244520 (designated as ZmSC), which encodes a vesicle-sorting protein described as a salt-tolerant protein in the NCBI database. To characterize the identified polymorphic marker, we employed gene cloning and homologous cloning techniques. Gene cloning analysis revealed a non-synonymous mutation at the 1847th base of ZmSCIL76 , where a guanine-to-cytosine substitution resulted in the mutation of serine to threonine at the 119th amino acid sequence (using ZmSCZ58 as the reference sequence). Moreover, homologous cloning demonstrated that the variation site derived from Z. perennis. Functional analyses showed that transgenic Arabidopsis lines overexpressing ZmSCZ58 exhibited significant reductions in leaf number, root length, and pod number, alongside suppression of the expression of genes in the SOS and CDPK pathways associated with Ca2+ signaling. Similarly, fission yeast strains expressing ZmSCZ58 displayed inhibited growth. In contrast, the ZmSCIL76 allele from Z. perennis alleviated these negative effects in both Arabidopsis and yeast, with the lines overexpressing ZmSCIL76 exhibiting significantly higher abscisic acid (ABA) content compared to those overexpressing ZmSCZ58 . Our findings suggest that ZmSC negatively regulates salt tolerance in maize by suppressing downstream gene expression associated with Ca2+ signaling in the CDPK and SOS pathways. The ZmSCIL76 allele from Z. perennis, however, can mitigate this negative regulatory effect. These results provide valuable insights and genetic resources for future maize salt tolerance breeding programs.
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Affiliation(s)
- Xiaofeng Li
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Qiangqiang Ma
- Pingliang Academy of Agricultural Sciences, Pingliang, China
| | - Xingyu Wang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Yunfeng Zhong
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Yibo Zhang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Ping Zhang
- Animal Feeding and Management Department, Research Base of Giant Panda Breeding, Chengdu, China
| | - Yiyang Du
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Hanyu Luo
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Yu Chen
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Xiangyuan Li
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Yingzheng Li
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Ruyu He
- Horticulture Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Yang Zhou
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Yang Li
- School of Urban and Rural Planning and Construction, Mianyang Teachers’ College, Mianyang, China
| | - Mingjun Cheng
- College of Grassland Resources, Southwest Minzu University, Chengdu, China
| | - Jianmei He
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Tingzhao Rong
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Qilin Tang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
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27
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Gupta S, Groen SC, Zaidem ML, Sajise AGC, Calic I, Natividad MA, McNally KL, Vergara GV, Satija R, Franks SJ, Singh RK, Joly-Lopez Z, Purugganan MD. Systems genomics of salinity stress response in rice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.31.596807. [PMID: 38895411 PMCID: PMC11185513 DOI: 10.1101/2024.05.31.596807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Populations can adapt to stressful environments through changes in gene expression. However, the role of gene regulation in mediating stress response and adaptation remains largely unexplored. Here, we use an integrative field dataset obtained from 780 plants of Oryza sativa ssp. indica (rice) grown in a field experiment under normal or moderate salt stress conditions to examine selection and evolution of gene expression variation under salinity stress conditions. We find that salinity stress induces increased selective pressure on gene expression. Further, we show that trans-eQTLs rather than cis-eQTLs are primarily associated with rice's gene expression under salinity stress, potentially via a few master-regulators. Importantly, and contrary to the expectations, we find that cis-trans reinforcement is more common than cis-trans compensation which may be reflective of rice diversification subsequent to domestication. We further identify genetic fixation as the likely mechanism underlying this compensation/reinforcement. Additionally, we show that cis- and trans-eQTLs are under different selection regimes, giving us insights into the evolutionary dynamics of gene expression variation. By examining genomic, transcriptomic, and phenotypic variation across a rice population, we gain insights into the molecular and genetic landscape underlying adaptive salinity stress responses, which is relevant for other crops and other stresses.
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Affiliation(s)
- Sonal Gupta
- Center for Genomics and Systems Biology, New York University, New York, NY USA
| | - Simon C Groen
- Center for Genomics and Systems Biology, New York University, New York, NY USA
- Department of Nematology and Department of Botany & Plant Sciences, University of California, Riverside, CA USA
- Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, Riverside, CA USA
| | - Maricris L. Zaidem
- Center for Genomics and Systems Biology, New York University, New York, NY USA
- Department of Biology, University of Oxford, Oxford, England
| | | | - Irina Calic
- Department of Biological Sciences, Fordham University, Bronx, NY USA
- Inari Agriculture Nv, Gent, Belgium
| | | | | | - Georgina V. Vergara
- International Rice Research Institute, Los Baños, Philippines
- Institute of Crop Science, University of the Philippines, Los Baños, Philippines
| | - Rahul Satija
- Center for Genomics and Systems Biology, New York University, New York, NY USA
- New York Genome Center, New York, NY USA
| | - Steven J. Franks
- Department of Biological Sciences, Fordham University, Bronx, NY USA
| | - Rakesh K. Singh
- International Rice Research Institute, Los Baños, Philippines
- International Center for Biosaline Agriculture, Dubai, UAE (current affiliation)
| | - Zoé Joly-Lopez
- Center for Genomics and Systems Biology, New York University, New York, NY USA
- Département de Chimie, Université du Quebéc à Montréal, Montreal, Quebec, Canada
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28
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Xue B, Duan W, Gong L, Zhu D, Li X, Li X, Liang YK. The OsDIR55 gene increases salt tolerance by altering the root diffusion barrier. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:1550-1568. [PMID: 38412303 DOI: 10.1111/tpj.16696] [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: 08/20/2023] [Revised: 01/30/2024] [Accepted: 02/07/2024] [Indexed: 02/29/2024]
Abstract
The increased soil salinity is becoming a major challenge to produce more crops and feed the growing population of the world. In this study, we demonstrated that overexpression of OsDIR55 gene enhances rice salt tolerance by altering the root diffusion barrier. OsDIR55 is broadly expressed in all examined tissues and organs with the maximum expression levels at lignified regions in rice roots. Salt stress upregulates the expression of OsDIR55 gene in an abscisic acid (ABA)-dependent manner. Loss-function and overexpression of OsDIR55 compromised and improved the development of CS and root diffusion barrier, manifested with the decreased and increased width of CS, respectively, and ultimately affected the permeability of the apoplastic diffusion barrier in roots. OsDIR55 deficiency resulted in Na+ accumulation, ionic imbalance, and growth arrest, whereas overexpression of OsDIR55 enhances salinity tolerance and provides an overall benefit to plant growth and yield potential. Collectively, we propose that OsDIR55 is crucial for ions balance control and salt stress tolerance through regulating lignification-mediated root barrier modifications in rice.
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Affiliation(s)
- Baoping Xue
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Wen Duan
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Luping Gong
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Dongmei Zhu
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Xueying Li
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Xuemei Li
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Yun-Kuan Liang
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
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29
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Dong H, Wang Y, Di Y, Qiu Y, Ji Z, Zhou T, Shen S, Du N, Zhang T, Dong X, Guo Z, Piao F, Li Y. Plant growth-promoting rhizobacteria Pseudomonas aeruginosa HG28-5 improves salt tolerance by regulating Na +/K + homeostasis and ABA signaling pathway in tomato. Microbiol Res 2024; 283:127707. [PMID: 38582011 DOI: 10.1016/j.micres.2024.127707] [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: 08/17/2023] [Revised: 03/19/2024] [Accepted: 03/27/2024] [Indexed: 04/08/2024]
Abstract
Salinity stress badly restricts the growth, yield and quality of vegetable crops. Plant growth-promoting rhizobacteria (PGPR) is a friendly and effective mean to enhance plant growth and salt tolerance. However, information on the regulatory mechanism of PGPR on vegetable crops in response to salt stress is still incomplete. Here, we screened a novel salt-tolerant PGPR strain Pseudomonas aeruginosa HG28-5 by evaluating the tomatoes growth performance, chlorophyll fluorescence index, and relative electrolyte leakage (REL) under normal and salinity conditions. Results showed that HG28-5 colonization improved seedling growth parameters by increasing the plant height (23.7%), stem diameter (14.6%), fresh and dry weight in the shoot (60.3%, 91.1%) and root (70.1%, 92.5%), compared to salt-stressed plants without colonization. Likewise, HG28-5 increased levels of maximum photochemical efficiency of PSII (Fv/Fm) (99.3%), the antioxidant enzyme activities as superoxide dismutase (SOD, 85.5%), peroxidase (POD, 35.2%), catalase (CAT, 20.6%), and reduced the REL (48.2%), MDA content (41.3%) and ROS accumulation in leaves of WT tomatoes under salt stress in comparison with the plants treated with NaCl alone. Importantly, Na+ content of HG28-5 colonized salt-stressed WT plants were decreased by15.5% in the leaves and 26.6% in the roots in the corresponding non-colonized salt-stressed plants, which may be attributed to the higher K+ concentration and SOS1, SOS2, HKT1;2, NHX1 transcript levels in leaves of colonized plants under saline condition. Interestingly, increased abscisic acid (ABA) content and upregulation of ABA pathway genes (ABA synthesis-related genes NCED1, NCED2, NCED4, NECD6 and signal genes ABF4, ABI5, and AREB) were observed in HG28-5 inoculated salt-stressed WT plants. ABA-deficient mutant (not) with NCED1 deficiency abolishes the effect of HG28-5 on alleviating salt stress in tomato, as exhibited by the substantial rise of REL and ROS accumulation and sharp drop of Fv/Fm in the leaves of not mutant plants. Notably, HG28-5 colonization enhances tomatoes fruit yield by 54.9% and 52.4% under normal and saline water irrigation, respectively. Overall, our study shows that HG28-5 colonization can significantly enhance salt tolerance and improved fruit yield by a variety of plant protection mechanism, including reducing oxidative stress, regulating plant growth, Na+/K+ homeostasis and ABA signaling pathways in tomato. The findings not only deepen our understanding of PGPR regulation plant growth and salt tolerance but also allow us to apply HG28-5 as a microbial fertilizer for agricultural production in high-salinity areas.
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Affiliation(s)
- Han Dong
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, PR China; College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Yuanyuan Wang
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Yancui Di
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Yingying Qiu
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Zelin Ji
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Tengfei Zhou
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Shunshan Shen
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Nanshan Du
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Tao Zhang
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Xiaoxing Dong
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Zhixin Guo
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China; International Joint Laboratory of Henan Horticultural Crop Biology, Henan Provincial Facility Horticulture Engineering Technology Research Center, Zhengzhou 450002, PR China.
| | - Fengzhi Piao
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, PR China; International Joint Laboratory of Henan Horticultural Crop Biology, Henan Provincial Facility Horticulture Engineering Technology Research Center, Zhengzhou 450002, PR China.
| | - Yonghua Li
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, PR China.
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30
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Malakar P, Gupta SK, Chattopadhyay D. Role of plant neurotransmitters in salt stress: A critical review. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 211:108601. [PMID: 38696867 DOI: 10.1016/j.plaphy.2024.108601] [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: 09/30/2023] [Revised: 03/22/2024] [Accepted: 04/03/2024] [Indexed: 05/04/2024]
Abstract
Neurotransmitters are naturally found in many plants, but the molecular processes that govern their actions still need to be better understood. Acetylcholine, γ-Aminobutyric acid, histamine, melatonin, serotonin, and glutamate are the most common neurotransmitters in animals, and they all play a part in the development and information processing. It is worth noting that all these chemicals have been found in plants. Although much emphasis has been placed on understanding how neurotransmitters regulate mood and behaviour in humans, little is known about how they regulate plant growth and development. In this article, the information was reviewed and updated considering current thinking on neurotransmitter signaling in plants' metabolism, growth, development, salt tolerance, and the associated avenues for underlying research. The goal of this study is to advance neurotransmitter signaling research in plant biology, especially in the area of salt stress physiology.
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Affiliation(s)
- Paheli Malakar
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.
| | - Santosh K Gupta
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.
| | - Debasis Chattopadhyay
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.
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31
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Li H, Liu Y, Wu J, Chang K, Zhang G, Zhao H, Qiu N, Bao Y. Overexpression of GhGSTF9 Enhances Salt Stress Tolerance in Transgenic Arabidopsis. Genes (Basel) 2024; 15:695. [PMID: 38927631 PMCID: PMC11202711 DOI: 10.3390/genes15060695] [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: 04/18/2024] [Revised: 05/20/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
Soil salinization is a major abiotic stress factor that negatively impacts plant growth, development, and crop yield, severely limiting agricultural production and economic development. Cotton, a key cash crop, is commonly cultivated as a pioneer crop in regions with saline-alkali soil due to its relatively strong tolerance to salt. This characteristic renders it a valuable subject for investigating the molecular mechanisms underlying plant salt tolerance and for identifying genes that confer salt tolerance. In this study, focus was placed on examining a salt-tolerant variety, E991, and a salt-sensitive variety, ZM24. A combined analysis of transcriptomic data from these cotton varieties led to the identification of potential salt stress-responsive genes within the glutathione S-transferase (GST) family. These versatile enzyme proteins, prevalent in animals, plants, and microorganisms, were demonstrated to be involved in various abiotic stress responses. Our findings indicate that suppressing GhGSTF9 in cotton led to a notably salt-sensitive phenotype, whereas heterologous overexpression in Arabidopsis plants decreases the accumulation of reactive oxygen species under salt stress, thereby enhancing salt stress tolerance. This suggests that GhGSTF9 serves as a positive regulator in cotton's response to salt stress. These results offer new target genes for developing salt-tolerant cotton varieties.
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Affiliation(s)
- Huimin Li
- Suzhou Polytechnic Institute of Agriculture, Suzhou 215008, China;
| | - Yihui Liu
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (Y.L.); (K.C.); (H.Z.); (N.Q.)
| | - Jie Wu
- Cash Crop Research Institute of Jiangxi Province, Jiujiang 332105, China;
| | - Kexin Chang
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (Y.L.); (K.C.); (H.Z.); (N.Q.)
| | - Guangqiang Zhang
- College of Agriculture and Bioengineering, Heze University, Heze 274015, China;
| | - Hang Zhao
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (Y.L.); (K.C.); (H.Z.); (N.Q.)
| | - Nianwei Qiu
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (Y.L.); (K.C.); (H.Z.); (N.Q.)
| | - Ying Bao
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (Y.L.); (K.C.); (H.Z.); (N.Q.)
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32
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Negroni YL, Doro I, Tamborrino A, Luzzi I, Fortunato S, Hensel G, Khosravi S, Maretto L, Stevanato P, Lo Schiavo F, de Pinto MC, Krupinska K, Zottini M. The Arabidopsis Mitochondrial Nucleoid-Associated Protein WHIRLY2 Is Required for a Proper Response to Salt Stress. PLANT & CELL PHYSIOLOGY 2024; 65:576-589. [PMID: 38591870 PMCID: PMC11094760 DOI: 10.1093/pcp/pcae025] [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: 10/29/2023] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 04/10/2024]
Abstract
In the last years, plant organelles have emerged as central coordinators of responses to internal and external stimuli, which can induce stress. Mitochondria play a fundamental role as stress sensors being part of a complex communication network between the organelles and the nucleus. Among the different environmental stresses, salt stress poses a significant challenge and requires efficient signaling and protective mechanisms. By using the why2 T-DNA insertion mutant and a novel knock-out mutant prepared by CRISPR/Cas9-mediated genome editing, this study revealed that WHIRLY2 is crucial for protecting mitochondrial DNA (mtDNA) integrity during salt stress. Loss-of-function mutants show an enhanced sensitivity to salt stress. The disruption of WHIRLY2 causes the impairment of mtDNA repair that results in the accumulation of aberrant recombination products, coinciding with severe alterations in nucleoid integrity and overall mitochondria morphology besides a compromised redox-dependent response and misregulation of antioxidant enzymes. The results of this study revealed that WHIRLY2-mediated structural features in mitochondria (nucleoid compactness and cristae) are important for an effective response to salt stress.
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Affiliation(s)
- Yuri L Negroni
- Department of Biology, University of Padova, Via U. Bassi 58/b, Padova 35131, Italy
| | - Irene Doro
- Department of Biology, University of Padova, Via U. Bassi 58/b, Padova 35131, Italy
| | - Alberto Tamborrino
- Department of Biology, University of Padova, Via U. Bassi 58/b, Padova 35131, Italy
| | - Irene Luzzi
- Department of Biology, University of Padova, Via U. Bassi 58/b, Padova 35131, Italy
| | - Stefania Fortunato
- Department of Biosciences, Biotechnology and Environment, University of Bari, Campus Universitario, Via Orabona, 4, Bari 70125, Italy
| | - Götz Hensel
- Plant Reproductive Biology, Department of Physiology and Cell Biology, IPK, Corrensstraße 3, Seeland, Gatersleben D-06466, Germany
| | - Solmaz Khosravi
- Plant Reproductive Biology, Department of Physiology and Cell Biology, IPK, Corrensstraße 3, Seeland, Gatersleben D-06466, Germany
| | - Laura Maretto
- Department of Agronomy, Food, Natural Resources, Animal and Environment, University of Padova, Viale Università 16, Legnaro, Padova 35020, Italy
| | - Piergiorgio Stevanato
- Department of Agronomy, Food, Natural Resources, Animal and Environment, University of Padova, Viale Università 16, Legnaro, Padova 35020, Italy
| | - Fiorella Lo Schiavo
- Department of Biology, University of Padova, Via U. Bassi 58/b, Padova 35131, Italy
| | - Maria Concetta de Pinto
- Department of Biosciences, Biotechnology and Environment, University of Bari, Campus Universitario, Via Orabona, 4, Bari 70125, Italy
| | - Karin Krupinska
- Botanisches Institut, Christian-Albrechts-Universität zu Kiel, Am Botanischen Garten 1-9, Kiel D-24098, Germany
| | - Michela Zottini
- Department of Biology, University of Padova, Via U. Bassi 58/b, Padova 35131, Italy
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Chang H, Wu T, Shalmani A, Xu L, Li C, Zhang W, Pan R. Heat shock protein HvHSP16.9 from wild barley enhances tolerance to salt stress. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2024; 30:687-704. [PMID: 38846458 PMCID: PMC11150235 DOI: 10.1007/s12298-024-01455-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 04/13/2024] [Accepted: 04/29/2024] [Indexed: 06/09/2024]
Abstract
Heat shock proteins (HSPs) are known to play a crucial role in the response of plants to environmental stress, particularly heat stress. Nevertheless, the function of HSPs in salt stress tolerance in plants, especially in barley, remains largely unexplored. Here, we aimed to investigate and compare the salt tolerance mechanisms between wild barley EC_S1 and cultivated barley RGT Planet through a comprehensive analysis of physiological parameters and transcriptomic profiles. Results demonstrated that the number of differentially expressed genes (DEGs) in EC_S1 was significantly higher than in RGT Planet, indicating that wild barley gene regulation is more adaptive to salt stress. KEGG enrichment analysis revealed that DEGs were mainly enriched in the processes of photosynthesis, plant hormone signal transduction, and reactive oxygen species metabolism. Furthermore, the application of weighted gene correlation network analysis (WGCNA) enabled the identification of a set of key genes, including small heat shock protein (sHSP), Calmodulin-like proteins (CML), and protein phosphatases 2C (PP2C). Subsequently, a novel sHSP gene, HvHSP16.9 encoding a protein of 16.9 kDa, was cloned from wild barley, and its role in plant response to salt stress was elucidated. In Arabidopsis, overexpression of HvHSP16.9 increased the salt tolerance. Meanwhile, barley stripe mosaic virus-induced gene silencing (BSMV-VIGS) of HvHSP16.9 significantly reduced the salt tolerance in wild barley. Overall, this study offers a new theoretical framework for comprehending the tolerance and adaptation mechanisms of wild barley under salt stress. It provides valuable insights into the salt tolerance function of HSP, and identifies new candidate genes for enhancing cultivated barley varieties. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-024-01455-4.
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Affiliation(s)
- Haowen Chang
- Research Center of Crop Stresses Resistance Technologies/MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River, Yangtze University, Jingzhou, 434025 China
| | - Tiantian Wu
- Research Center of Crop Stresses Resistance Technologies/MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River, Yangtze University, Jingzhou, 434025 China
| | - Abdullah Shalmani
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling, 712100 China
| | - Le Xu
- Research Center of Crop Stresses Resistance Technologies/MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River, Yangtze University, Jingzhou, 434025 China
| | - Chengdao Li
- Western Crop Genetics Alliance, Western Australian State Agricultural Biotechnology Centre, College of Science, Health, Engineering and Education, Murdoch University, Murdoch, WA 6105 Australia
| | - Wenying Zhang
- Research Center of Crop Stresses Resistance Technologies/MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River, Yangtze University, Jingzhou, 434025 China
| | - Rui Pan
- Research Center of Crop Stresses Resistance Technologies/MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River, Yangtze University, Jingzhou, 434025 China
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34
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Ji X, Tang J, Zheng X, Li A, Zhang J. The regulating mechanism of salt tolerance of black walnut seedlings was revealed by the physiological and biochemical integration analysis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108548. [PMID: 38552263 DOI: 10.1016/j.plaphy.2024.108548] [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: 10/14/2023] [Revised: 03/13/2024] [Accepted: 03/19/2024] [Indexed: 05/12/2024]
Abstract
Salt stress is an important abiotic stress that seriously affects plant growth. In order to research the salt tolerance of walnut rootstocks so as to provide scientific basis for screening salt-tolerant walnut rootstocks, two kinds of black walnut seedlings, Juglans microcarpa L. (JM) and Juglans nigra L. (JN), were treated under salt stress with different concentrations of NaCl (0, 50, 100, and 200 mM) and the growth situation of seedlings were observed. The physiological indexes of JM and JN seedlings were also measured in different days after treatment. Our study showed salt stress inhibited seedlings growth and limited biomass accumulation. Walnut mainly increased osmotic adjustment ability by accumulation Pro and SS. Furthermore, with the duration of treatment time increased, SOD and APX activities decreased, TPC and TFC contents increased. Walnut accumulated Na mostly in roots and transported more K and Ca to aboveground parts. The growth and physiological response performance differed between JM and JN, specifically, the differences occurred in the ability to absorb minerals, regulate osmotic stress, and scavenge ROS. Salt tolerance of JM and JN was assessed by principal component analysis (PCA) and resulted in JN > JM. In conclusion, our results indicated that JN has higher salt tolerance than JM, and JN might be used as a potential germplasm resource for the genetic breeding of walnuts.
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Affiliation(s)
- Xinying Ji
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Jiali Tang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Xu Zheng
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Ao Li
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Junpei Zhang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China.
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35
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Liu H, Lin M, Wang H, Li X, Zhou D, Bi X, Zhang Y. N 6-methyladenosine analysis unveils key mechanisms underlying long-term salt stress tolerance in switchgrass (Panicum virgatum). PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 342:112023. [PMID: 38320658 DOI: 10.1016/j.plantsci.2024.112023] [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: 10/12/2023] [Revised: 01/15/2024] [Accepted: 02/01/2024] [Indexed: 02/08/2024]
Abstract
N6-methyladenosine (m6A) RNA modification is critical for plant growth, development, and environmental stress response. While short-term stress impacts on m6A are well-documented, the consequences of prolonged stress remain underexplored. This study conducts a thorough transcriptome-wide analysis of m6A modifications following 28-day exposure to 200 mM NaCl. We detected 11,149 differentially expressed genes (DEGs) and 12,936 differentially methylated m6A peaks, along with a global decrease in m6A levels. Notably, about 62% of m6A-modified DEGs, including demethylase genes like PvALKBH6_N, PvALKBH9_K, and PvALKBH10_N, showed increased expression and reduced m6A peaks, suggesting that decreased m6A methylation may enhance gene expression under salt stress. Consistent expression and methylation patterns were observed in key genes related to ion homeostasis (e.g., H+-ATPase 1, High-affinity K+transporter 5), antioxidant defense (Catalase 1/2, Copper/zinc superoxide dismutase 2, Glutathione synthetase 1), and osmotic regulation (delta 1-pyrroline-5-carboxylate synthase 2, Pyrroline-5-carboxylate reductase). These findings provide insights into the adaptive mechanisms of switchgrass under long-term salt stress and highlight the potential of regulating m6A modifications as a novel approach for crop breeding strategies focused on stress resistance.
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Affiliation(s)
- Huayue Liu
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Mengzhuo Lin
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Hui Wang
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Xue Li
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Die Zhou
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Xiaojing Bi
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Yunwei Zhang
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China.
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Zhang S, Yang X, Xu Y, Wang H, Luo F, Fu G, Yan D, Lai M, Ke Y, Ye Y, Ji X. Rational design of a rapidly responsive and highly selective fluorescent probe for SO 2 derivatives detection and imaging. Food Chem 2024; 439:138151. [PMID: 38064833 DOI: 10.1016/j.foodchem.2023.138151] [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: 10/02/2023] [Revised: 11/16/2023] [Accepted: 12/03/2023] [Indexed: 01/10/2024]
Abstract
Sulfur dioxide (SO2) is emerging as a double-edged molecule, while plays vital roles in food and biological system. However, the fast, highly sensitive, and versatile fluorescent probe still remains a tough challenge among current reports. Herein, we developed a novel aggregation-induced emission (AIE) fluorescent probe TPE-PN for specifically sensing SO2 derivatives with high sensitivity (150 nmol/L) and rapid response time (10 s) based on intramolecular charge transfer (ICT) mechanism. And the fluorescence at 575 nm decreased tremendously with 31-fold after the probe was treated with HSO3-. Employing the probe, the accurate analysis of HSO3- was successfully realized in food samples, cells, plant tissues, and zebrafishes. Furthermore, we successfully demonstrate the eruption of SO2 derivatives within plant during drought and salt stress processes. Therefore, probe TPE-PN illustrates significant potential for applications in food analysis and monitoring of SO2 derivatives levels in biological systems under stress conditions.
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Affiliation(s)
- Shiyi Zhang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Xiaopeng Yang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, China.
| | - Ying Xu
- School of Pharmaceutical Sciences, and Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou 450001, China
| | - Haiyang Wang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Fei Luo
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Guangming Fu
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Dingwei Yan
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Miao Lai
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Yu Ke
- School of Pharmaceutical Sciences, and Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou 450001, China.
| | - Yong Ye
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaoming Ji
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, China.
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37
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Liu Y, An XH, Liu H, Zhang T, Li X, Liu R, Li C, Tian Y, You C, Wang XF. Cloning and functional identification of apple LATERAL ORGAN BOUNDARY DOMAIN 3 (LBD3) transcription factor in the regulation of drought and salt stress. PLANTA 2024; 259:125. [PMID: 38634979 DOI: 10.1007/s00425-024-04373-7] [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: 12/17/2023] [Accepted: 02/28/2024] [Indexed: 04/19/2024]
Abstract
MAIN CONCLUSION Overexpression of MdLBD3 in Arabidopsis reduced sensitivity to salt and drought stresses and was instrumental in promoting early flowering. Salt and drought stresses have serious effects on plant growth. LATERAL ORGAN BOUNDARY DOMAIN (LBD) proteins are a plant-specific transcription factors (TFs) family and play important roles in plants in resisting to abiotic stress. However, about the function of LBDs in apple and other woody plants is little known. In this study, protein sequences of the LBD family TFs in apples were identified which contained conserved LOB domains. The qRT-PCR analysis showed that the MdLBD3 gene was widely expressed in various tissues and organs. The subcellular localization assay showed that the MdLBD3 protein was localized in the nucleus. Ectopic expression of MdLBD3 in Arabidopsis positively regulated its salt and drought resistance, and promoted early flowering. Collectively, these results showed that MdLBD3 improved the abiotic stress resistance, plant growth and development. Overall, this study provided a new gene for breeding that can increase the abiotic stress tolerance in apple.
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Affiliation(s)
- Yaqi Liu
- Apple Technology Innovation Center of Shandong Province, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Xiu-Hong An
- National Engineering Research Center for Agriculture in Northern Mountainous Areas, Agricultural Technology Innovation Center in Mountainous Areas of Hebei Province, Hebei Agricultural University, Baoding, Hebei, China
| | - Haofeng Liu
- Apple Technology Innovation Center of Shandong Province, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Tingting Zhang
- Apple Technology Innovation Center of Shandong Province, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Xiaowen Li
- Apple Technology Innovation Center of Shandong Province, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Ranxin Liu
- Apple Technology Innovation Center of Shandong Province, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Chang Li
- Apple Technology Innovation Center of Shandong Province, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Yi Tian
- National Engineering Research Center for Agriculture in Northern Mountainous Areas, Agricultural Technology Innovation Center in Mountainous Areas of Hebei Province, Hebei Agricultural University, Baoding, Hebei, China
| | - Chunxiang You
- Apple Technology Innovation Center of Shandong Province, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, China.
| | - Xiao-Fei Wang
- Apple Technology Innovation Center of Shandong Province, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, China.
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38
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Li T, Zhang S, Li Y, Zhang L, Song W, Chen C. Overexpression of AtMYB2 Promotes Tolerance to Salt Stress and Accumulations of Tanshinones and Phenolic Acid in Salvia miltiorrhiza. Int J Mol Sci 2024; 25:4111. [PMID: 38612919 PMCID: PMC11012609 DOI: 10.3390/ijms25074111] [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: 02/14/2024] [Revised: 03/31/2024] [Accepted: 04/05/2024] [Indexed: 04/14/2024] Open
Abstract
Salvia miltiorrhiza is a prized traditional Chinese medicinal plant species. Its red storage roots are primarily used for the treatment of cardiovascular and cerebrovascular diseases. In this study, a transcription factor gene AtMYB2 was cloned and introduced into Salvia miltiorrhiza for ectopic expression. Overexpression of AtMYB2 enhanced salt stress resistance in S. miltiorrhiza, leading to a more resilient phenotype in transgenic plants exposed to high-salinity conditions. Physiological experiments have revealed that overexpression of AtMYB2 can decrease the accumulation of reactive oxygen species (ROS) during salt stress, boost the activity of antioxidant enzymes, and mitigate oxidative damage to cell membranes. In addition, overexpression of AtMYB2 promotes the synthesis of tanshinones and phenolic acids by upregulating the expression of biosynthetic pathway genes, resulting in increased levels of these secondary metabolites. In summary, our findings demonstrate that AtMYB2 not only enhances plant tolerance to salt stress, but also increases the accumulation of secondary metabolites in S. miltiorrhiza. Our study lays a solid foundation for uncovering the molecular mechanisms governed by AtMYB2 and holds significant implications for the molecular breeding of high-quality S. miltiorrhiza varieties.
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Affiliation(s)
| | | | | | | | | | - Chengbin Chen
- College of Life Sciences, Nankai University, Tianjin 300071, China; (T.L.); (S.Z.); (Y.L.); (L.Z.); (W.S.)
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39
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Yu C, Hu Y, Zhang Y, Luo W, Zhang J, Xu P, Qian J, Li J, Yu J, Liu J, Zhou W, Shao S. Concurrent enhancement of biomass production and phycocyanin content in salt-stressed Arthrospira platensis: A glycine betaine- supplementation approach. CHEMOSPHERE 2024; 353:141387. [PMID: 38331268 DOI: 10.1016/j.chemosphere.2024.141387] [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: 06/29/2023] [Revised: 01/07/2024] [Accepted: 02/03/2024] [Indexed: 02/10/2024]
Abstract
In industrial-scale cultivation of microalgae, salinity stress often stimulates high-value metabolites production but decreases biomass yield. In this research, we present an extraordinary response of Arthrospira platensis to salinity stress. Specifically, we observed a significant increase in both biomass production (2.58 g L-1) and phycocyanin (PC) content (22.31%), which were enhanced by 1.26-fold and 2.62-fold, respectively, compared to the control, upon exposure to exogenous glycine betaine (GB). The biochemical analysis reveals a significant enhancement in carbonic anhydrase activity and chlorophyll a level, concurrent with reductions in carbohydrate content and reactive oxygen species (ROS) levels. Further, transcriptomic profiling indicates a downregulation of genes associated with the tricarboxylic acid (TCA) cycle and an upregulation of genes linked to nitrogen assimilation, hinting at a rebalanced carbon/nitrogen metabolism favoring PC accumulation. This work thus presents a promising strategy for simultaneous enhancement of biomass production and PC content in A. platensis and expands our understanding of PC biosynthesis and salinity stress responses in A. platensis.
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Affiliation(s)
- Chunli Yu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Yao Hu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Yuqin Zhang
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Wei Luo
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Jing Zhang
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Peilun Xu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Jun Qian
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Jun Li
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Jianfeng Yu
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - Jin Liu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China; Center for Algae Innovation & Engineering Research, School of Resources and Environment, Nanchang University, Nanchang, China
| | - Wenguang Zhou
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China; Center for Algae Innovation & Engineering Research, School of Resources and Environment, Nanchang University, Nanchang, China.
| | - Shengxi Shao
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China; Center for Algae Innovation & Engineering Research, School of Resources and Environment, Nanchang University, Nanchang, China.
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40
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Gao R, Jia Y, Xu X, Fu P, Zhou J, Yang G. Structural insights into the Oryza sativa cation transporters HKTs in salt tolerance. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:700-708. [PMID: 38409933 DOI: 10.1111/jipb.13632] [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: 02/02/2024] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/28/2024]
Abstract
The high-affinity potassium transporters (HKTs), selectively permeable to either Na+ alone or Na+/K+, play pivotal roles in maintaining plant Na+/K+ homeostasis. Although their involvement in salt tolerance is widely reported, the molecular underpinnings of Oryza sativa HKTs remain elusive. In this study, we elucidate the structures of OsHKT1;1 and OsHKT2;1, representing two distinct classes of rice HKTs. The dimeric assembled OsHKTs can be structurally divided into four domains. At the dimer interface, a half-helix or a loop in the third domain is coordinated by the C-terminal region of the opposite subunit. Additionally, we present the structures of OsHKT1;5 salt-tolerant and salt-sensitive variants, a key quantitative trait locus associated with salt tolerance. The salt-tolerant variant of OsHKT1;5 exhibits enhanced Na+ transport capability and displays a more flexible conformation. These findings shed light on the molecular basis of rice HKTs and provide insights into their role in salt tolerance.
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Affiliation(s)
- Ran Gao
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, 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, 100193, 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, 100193, 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, 100193, 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, 100193, 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, 100193, China
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41
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Liu C, Mao B, Zhang Y, Tian L, Ma B, Chen Z, Wei Z, Li A, Shao Y, Cheng G, Li L, Li W, Zhang D, Ding X, Peng J, Peng Y, He J, Ye N, Yuan D, Chu C, Duan M. The OsWRKY72-OsAAT30/OsGSTU26 module mediates reactive oxygen species scavenging to drive heterosis for salt tolerance in hybrid rice. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:709-730. [PMID: 38483018 DOI: 10.1111/jipb.13640] [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: 10/24/2023] [Accepted: 02/23/2024] [Indexed: 04/11/2024]
Abstract
Hybrid rice (Oryza sativa) generally outperforms its inbred parents in yield and stress tolerance, a phenomenon termed heterosis, but the underlying mechanism is not completely understood. Here, we combined transcriptome, proteome, physiological, and heterosis analyses to examine the salt response of super hybrid rice Chaoyou1000 (CY1000). In addition to surpassing the mean values for its two parents (mid-parent heterosis), CY1000 exhibited a higher reactive oxygen species scavenging ability than both its parents (over-parent heterosis or heterobeltiosis). Nonadditive expression and allele-specific gene expression assays showed that the glutathione S-transferase gene OsGSTU26 and the amino acid transporter gene OsAAT30 may have major roles in heterosis for salt tolerance, acting in an overdominant fashion in CY1000. Furthermore, we identified OsWRKY72 as a common transcription factor that binds and regulates OsGSTU26 and OsAAT30. The salt-sensitive phenotypes were associated with the OsWRKY72paternal genotype or the OsAAT30maternal genotype in core rice germplasm varieties. OsWRKY72paternal specifically repressed the expression of OsGSTU26 under salt stress, leading to salinity sensitivity, while OsWRKY72maternal specifically repressed OsAAT30, resulting in salinity tolerance. These results suggest that the OsWRKY72-OsAAT30/OsGSTU26 module may play an important role in heterosis for salt tolerance in an overdominant fashion in CY1000 hybrid rice, providing valuable clues to elucidate the mechanism of heterosis for salinity tolerance in hybrid rice.
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Affiliation(s)
- Citao Liu
- Hunan Provincial Key Laboratory of Stress Biology, College of Agriculture, Hunan Agricultural University, Changsha, 410128, China
| | - Bigang Mao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, 410125, China
| | - Yanxia Zhang
- College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Lei Tian
- State Key Laboratory of Wheat and Maize Crop Science, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Biao Ma
- College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Zhuo Chen
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Zhongwei Wei
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, 410125, China
| | - Aifu Li
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Ye Shao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, 410125, China
| | - Gongye Cheng
- Hunan Provincial Key Laboratory of Stress Biology, College of Agriculture, Hunan Agricultural University, Changsha, 410128, China
| | - Lingling Li
- Hunan Provincial Key Laboratory of Stress Biology, College of Agriculture, Hunan Agricultural University, Changsha, 410128, China
| | - Wenyu Li
- Hunan Provincial Key Laboratory of Stress Biology, College of Agriculture, Hunan Agricultural University, Changsha, 410128, China
| | - Di Zhang
- Hunan Provincial Key Laboratory of Stress Biology, College of Agriculture, Hunan Agricultural University, Changsha, 410128, China
| | - Xiaoping Ding
- Hunan Provincial Key Laboratory of Stress Biology, College of Agriculture, Hunan Agricultural University, Changsha, 410128, China
| | | | - Yulin Peng
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, 410125, China
| | - Jiwai He
- Hunan Provincial Key Laboratory of Stress Biology, College of Agriculture, Hunan Agricultural University, Changsha, 410128, China
| | - Nenghui Ye
- Hunan Provincial Key Laboratory of Stress Biology, College of Agriculture, Hunan Agricultural University, Changsha, 410128, China
| | - Dingyang Yuan
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, 410125, China
| | - Chengcai Chu
- College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Meijuan Duan
- Hunan Provincial Key Laboratory of Stress Biology, College of Agriculture, Hunan Agricultural University, Changsha, 410128, China
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Zhao Q, Jing W, Fu X, Yang R, Zhu C, Zhao J, Choisy P, Xu T, Ma N, Zhao L, Gao J, Zhou X, Li Y. TSPO-induced degradation of the ethylene receptor RhETR3 promotes salt tolerance in rose ( Rosa hybrida). HORTICULTURE RESEARCH 2024; 11:uhae040. [PMID: 38623073 PMCID: PMC11017515 DOI: 10.1093/hr/uhae040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 01/30/2024] [Indexed: 04/17/2024]
Abstract
The gaseous plant hormone ethylene regulates plant development, growth, and responses to stress. In particular, ethylene affects tolerance to salinity; however, the underlying mechanisms of ethylene signaling and salt tolerance are not fully understood. Here, we demonstrate that salt stress induces the degradation of the ethylene receptor ETHYLENE RESPONSE 3 (RhETR3) in rose (Rosa hybrid). Furthermore, the TspO/MBR (Tryptophan-rich sensory protein/mitochondrial benzodiazepine receptor) domain-containing membrane protein RhTSPO interacted with RhETR3 to promote its degradation in response to salt stress. Salt tolerance is enhanced in RhETR3-silenced rose plants but decreased in RhTSPO-silenced plants. The improved salt tolerance of RhETR3-silenced rose plants is partly due to the increased expression of ACC SYNTHASE1 (ACS1) and ACS2, which results in an increase in ethylene production, leading to the activation of ETHYLENE RESPONSE FACTOR98 (RhERF98) expression and, ultimately accelerating H2O2 scavenging under salinity conditions. Additionally, overexpression of RhETR3 increased the salt sensitivity of rose plants. Co-overexpression with RhTSPO alleviated this sensitivity. Together, our findings suggest that RhETR3 degradation is a key intersection hub for the ethylene signalling-mediated regulation of salt stress.
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Affiliation(s)
- Qingcui Zhao
- School of Food and Drug, Shenzhen Polytechnic, Shenzhen, 518055, Guangdong, China
- Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen, 518055, Guangdong, China
| | - Weikun Jing
- School of Food and Drug, Shenzhen Polytechnic, Shenzhen, 518055, Guangdong, China
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, 650205, Yunnan, China
| | - Xijia Fu
- Department of Ornamental Horticulture, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, China Agricultural University, Beijing 100193, China
| | - Ruoyun Yang
- Department of Ornamental Horticulture, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, China Agricultural University, Beijing 100193, China
| | - Chunyan Zhu
- Department of Ornamental Horticulture, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, China Agricultural University, Beijing 100193, China
| | - Jiaxin Zhao
- Department of Ornamental Horticulture, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, China Agricultural University, Beijing 100193, China
| | | | - Tao Xu
- LVMH Recherche, F-45800 St Jean de Braye, France
| | - Nan Ma
- Department of Ornamental Horticulture, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, China Agricultural University, Beijing 100193, China
| | - Liangjun Zhao
- Department of Ornamental Horticulture, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, China Agricultural University, Beijing 100193, China
| | - Junping Gao
- Department of Ornamental Horticulture, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, China Agricultural University, Beijing 100193, China
| | - Xiaofeng Zhou
- Department of Ornamental Horticulture, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, China Agricultural University, Beijing 100193, China
| | - Yonghong Li
- School of Food and Drug, Shenzhen Polytechnic, Shenzhen, 518055, Guangdong, China
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Liu J, Zhang C, Sun H, Zang Y, Meng X, Zhai H, Chen Q, Li C. A natural variation in SlSCaBP8 promoter contributes to the loss of saline-alkaline tolerance during tomato improvement. HORTICULTURE RESEARCH 2024; 11:uhae055. [PMID: 38659442 PMCID: PMC11040208 DOI: 10.1093/hr/uhae055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/20/2024] [Indexed: 04/26/2024]
Abstract
Saline-alkaline stress is a worldwide problem that threatens the growth and yield of crops. However, how crops adapt to saline-alkaline stress remains less studied. Here we show that saline-alkaline tolerance was compromised during tomato domestication and improvement, and a natural variation in the promoter of SlSCaBP8, an EF-hand Ca2+ binding protein, contributed to the loss of saline-alkaline tolerance during tomato improvement. The biochemical and genetic data showed that SlSCaBP8 is a positive regulator of saline-alkaline tolerance in tomato. The introgression line Pi-75, derived from a cross between wild Solanum pimpinellifolium LA1589 and cultivar E6203, containing the SlSCaBP8LA1589 locus, showed stronger saline-alkaline tolerance than E6203. Pi-75 and LA1589 also showed enhanced saline-alkaline-induced SlSCaBP8 expression than that of E6203. By sequence analysis, a natural variation was found in the promoter of SlSCaBP8 and the accessions with the wild haplotype showed enhanced saline-alkaline tolerance compared with the cultivar haplotype. Our studies clarify the mechanism of saline-alkaline tolerance conferred by SlSCaBP8 and provide an important natural variation in the promoter of SlSCaBP8 for tomato breeding.
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Affiliation(s)
- Jian Liu
- College of Agronomy, Shandong Agricultural University, Tai’an, Shandong 271018, China
| | - Chi Zhang
- College of Agronomy, Shandong Agricultural University, Tai’an, Shandong 271018, China
| | - Heyao Sun
- College of Agronomy, Shandong Agricultural University, Tai’an, Shandong 271018, China
| | - Yinqiang Zang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong 271018, China
| | - Xianwen Meng
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong 271018, China
| | - Huawei Zhai
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong 271018, China
| | - Qian Chen
- Beijing Key Laboratory for Agricultural Applications and New Techniques, Plant Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Chuanyou Li
- College of Life Science, Shandong Agricultural University, Tai’an, Shandong 271018, China
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Liu L, Ma Y, Zhao H, Guo L, Guo Y, Liu CM. Genome-wide association studies identified OsTMF as a gene regulating rice seed germination under salt stress. FRONTIERS IN PLANT SCIENCE 2024; 15:1384246. [PMID: 38601316 PMCID: PMC11004275 DOI: 10.3389/fpls.2024.1384246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 03/15/2024] [Indexed: 04/12/2024]
Abstract
Introduction Salt tolerance during seed germination is an important trait for direct seeding and low-cost rice production. Nevertheless, it is still not clear how seed germination under salt stress is regulated genetically. Methods In this study, genome-wide association studies (GWAS) were performed to decipher the genetic basis of seed germination under salt stress using 541 rice varieties collected worldwide. Results and discussion Three quantitative trait loci (QTLs) were identified including qGRG3-1 on chromosome 3, qGRG3-2 on chromosome 5, and qGRG4 on chromosome 4. Assessment of candidate genes in these loci for their responses to salt stress identified a TATA modulatory factor (OsTMF) in qGRG3-2. The expression of OsTMF was up-regulated in both roots and shoots after exposure to salt stress, and OsTMF knockout mutants exhibited delayed seed germination under salt stress. Haplotype analysis showed that rice varieties carrying OsTMF-Hap2 displayed elevated salt tolerance during seed germination. These results provide important knowledge and resources to improve rice seed germination under salt stress in the future.
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Affiliation(s)
- Lifeng Liu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yanling Ma
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Heng Zhao
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lin Guo
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Chun-Ming Liu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- School of Advanced Agricultural Sciences, Peking University, Beijing, China
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45
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Ma G, Zhang Y, Li X. Overexpression of OsDUF6 increases salt stress tolerance in rice. BMC PLANT BIOLOGY 2024; 24:216. [PMID: 38532340 DOI: 10.1186/s12870-024-04921-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/18/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Soil salinity is one of the primary environmental stresses faced in rice production. When plants are exposed to salt stress, a series of cellular balances will be disrupted. Dufulin is an immune-induced antiviral agent used in plants. The DUF gene family influences plant response to abiotic stress, and the functional role of OsDUF6(ABA98726.1) in rice response to salt stress is being investigated here. RESULTS Based on the transcriptome analysis of Dufulin treatment in inducing salt tolerance in rice, we selected the OsDUF6 protein located on the cell membrane and studied its molecular function by overexpressing OsDUF6. Salt-induced decreases in root, stem, and leaf length and increased leaf yellowing rate and Na+ concentration in the wild-type plant were mitigated in the overexpressed lines. OsDUF6 overexpression increased the enzymatic antioxidant activities of superoxide dismutase, peroxidase, catalase, and phenylalanine ammonia-lyase. OsDUF6 also played a positive role in Na+ transport as reflected by the increased growth of a salt-sensitive yeast mutant complemented with OsDUF6 in the presence of salt stress. In addition, Reverse transcription quantitative PCR analysis confirmed that the overexpression of OsDUF6 significantly changed the expression level of other genes related to growth and stress tolerance. CONCLUSIONS Combined with previously published data, our results supported the observation that OsDUF6 is an important functional factor in Dufulin-induced promotion of salt stress tolerance in rice.
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Affiliation(s)
- Guangming Ma
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticides and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Yong Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticides and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Xiangyang Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticides and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China.
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Wang S, Jiang R, Feng J, Zou H, Han X, Xie X, Zheng G, Fang C, Zhao J. Overexpression of transcription factor FaMYB63 enhances salt tolerance by directly binding to the SOS1 promoter in Arabidopsis thaliana. PLANT MOLECULAR BIOLOGY 2024; 114:32. [PMID: 38512490 DOI: 10.1007/s11103-024-01431-2] [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: 10/31/2023] [Accepted: 02/20/2024] [Indexed: 03/23/2024]
Abstract
Salinity is a pivotal abiotic stress factor with far-reaching consequences on global crop growth, yield, and quality and which includes strawberries. R2R3-MYB transcription factors encompass a range of roles in plant development and responses to abiotic stress. In this study, we identified that strawberry transcription factor FaMYB63 exhibited a significant upregulation in its expression under salt stress conditions. An analysis using yeast assay demonstrated that FaMYB63 exhibited the ability to activate transcriptional activity. Compared with those in the wild-type (WT) plants, the seed germination rate, root length, contents of chlorophyll and proline, and antioxidant activities (SOD, CAT, and POD) were significantly higher in FaMYB63-overexpressing Arabidopsis plants exposed to salt stress. Conversely, the levels of malondialdehyde (MDA) were considerably lower. Additionally, the FaMYB63-overexpressed Arabidopsis plants displayed a substantially improved capacity to scavenge active oxygen. Furthermore, the activation of stress-related genes by FaMYB63 bolstered the tolerance of transgenic Arabidopsis to salt stress. It was also established that FaMYB63 binds directly to the promoter of the salt overly sensitive gene SOS1, thereby activating its expression. These findings identified FaMYB63 as a possible and important regulator of salt stress tolerance in strawberries.
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Affiliation(s)
- Shuaishuai Wang
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518000, China
| | - Rongyi Jiang
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Jian Feng
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Haodong Zou
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Xiaohuan Han
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Xingbin Xie
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Guanghui Zheng
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Congbing Fang
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China.
| | - Jing Zhao
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China.
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Rodríguez-Rojas F, Navarrete C, Rámila C, Tapia-Reyes P, Celis-Plá PSM, González C, Pereira-Rojas J, Blanco-Murillo F, Moreno P, Gutiérrez-Campos C, Sánchez-Lizaso JL, Sáez CA. Transcriptomic profiles and diagnostic biomarkers in the Mediterranean seagrasses Posidonia oceanica and Cymodocea nodosa reveal mechanistic insights of adaptative strategies upon desalination brine stress. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 916:170326. [PMID: 38266720 DOI: 10.1016/j.scitotenv.2024.170326] [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: 09/17/2023] [Revised: 12/26/2023] [Accepted: 01/19/2024] [Indexed: 01/26/2024]
Abstract
Seawater desalination by reverse osmosis is growing exponentially due to water scarcity. Byproducts of this process (e.g. brines), are generally discharged directly into the coastal ecosystem, causing detrimental effects, on benthic organisms. Understanding the cellular stress response of these organisms (biomarkers), could be crucial for establishing appropriate salinity thresholds for discharged brines. Early stress biomarkers can serve as valuable tools for monitoring the health status of brine-impacted organisms, enabling the prediction of long-term irreversible damage caused by the desalination industry. In this study, we conducted laboratory-controlled experiments to assess cellular and molecular biomarkers against brine exposure in two salinity-sensitive Mediterranean seagrasses: Posidonia oceanica and Cymodocea nodosa. Treatments involved exposure to 39, 41, and 43 psu, for 6 h and 7 days. Results indicated that photosynthetic performance remained unaffected across all treatments. However, under 43 psu, P. oceanica and C. nodosa exhibited lipid oxidative damage, which occurred earlier in P. oceanica. Additionally, P. oceanica displayed an antioxidant response at higher salinities by accumulating phenolic compounds within 6 h and ascorbate within 7 d; whereas for C. nodosa the predominant antioxidant mechanisms were phenolic compounds accumulation and total radical scavenging activity, which was evident after 7 d of brines exposure. Finally, transcriptomic analyses in P. oceanica exposed to 43 psu for 7 days revealed a poor up-regulation of genes associated with brassinosteroid response and abiotic stress response, while a high down-regulation of genes related to primary metabolism was detected. In C. nodosa, up-regulated genes were involved in DNA repair, cell cycle regulation, and reproduction, while down-regulated genes were mainly associated with photosynthesis and ribosome assembly. Overall, these findings suggest that 43 psu is a critical salinity-damage threshold for both seagrasses; and despite the moderate overexpression of several transcripts that could confer salt tolerance, genes involved in essential biological processes were severely downregulated.
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Affiliation(s)
- Fernanda Rodríguez-Rojas
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Departamento de Ciencias y Geografía, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile. Valparaíso, Chile
| | - Camilo Navarrete
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Doctorado Interdisciplinario en Ciencias Ambientales, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile
| | - Consuelo Rámila
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile
| | - Patricio Tapia-Reyes
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Santo Tomás. Av. Ejército 146, 8370003, Santiago, Chile
| | - Paula S M Celis-Plá
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Departamento de Ciencias y Geografía, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile. Valparaíso, Chile
| | - Christian González
- Escuela de Obras Civiles, Universidad Diego Portales. Av. Ejército 441, 8370191, Santiago, Chile
| | - Jeniffer Pereira-Rojas
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Doctorado Interdisciplinario en Ciencias Ambientales, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile
| | - Fabio Blanco-Murillo
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Doctorado Interdisciplinario en Ciencias Ambientales, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile; Departamento de Ciencias del Mar y Biología Aplicada, Universidad de Alicante, Carretera de San Vicente del Raspeig s/n, 03690, Alicante, Spain
| | - Pablo Moreno
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile
| | - Catalina Gutiérrez-Campos
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile
| | - José Luis Sánchez-Lizaso
- Departamento de Ciencias del Mar y Biología Aplicada, Universidad de Alicante, Carretera de San Vicente del Raspeig s/n, 03690, Alicante, Spain; Ciencias del Mar Universidad de Alicante, Unidad Asociada al CSIC por el IEO, Carretera de San Vicente del Raspeig s/n, 03690, Alicante, Spain
| | - Claudio A Sáez
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Departamento de Ciencias y Geografía, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile. Valparaíso, Chile; Departamento de Ciencias del Mar y Biología Aplicada, Universidad de Alicante, Carretera de San Vicente del Raspeig s/n, 03690, Alicante, Spain.
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Sharma G, Sharma N, Ohri P. Harmonizing hydrogen sulfide and nitric oxide: A duo defending plants against salinity stress. Nitric Oxide 2024; 144:1-10. [PMID: 38185242 DOI: 10.1016/j.niox.2024.01.002] [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: 09/15/2023] [Revised: 12/01/2023] [Accepted: 01/05/2024] [Indexed: 01/09/2024]
Abstract
In the face of escalating salinity stress challenges in agricultural systems, this review article delves into the harmonious partnership between hydrogen sulfide (H2S) and nitric oxide (NO) as they collectively act as formidable defenders of plants. Once considered as harmful pollutants, H2S and NO have emerged as pivotal gaseous signal molecules that profoundly influence various facets of plant life. Their roles span from enhancing seed germination to promoting overall growth and development. Moreover, these molecules play a crucial role in bolstering stress tolerance mechanisms and maintaining essential plant homeostasis. This review navigates through the intricate signaling pathways associated with H2S and NO, elucidating their synergistic effects in combating salinity stress. We explore their potential to enhance crop productivity, thereby ensuring food security in saline-affected regions. In an era marked by pressing environmental challenges, the manipulation of H2S and NO presents promising avenues for sustainable agriculture, offering a beacon of hope for the future of global food production.
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Affiliation(s)
- Gaurav Sharma
- Department of Microbiology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India.
| | - Nandni Sharma
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
| | - Puja Ohri
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
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Gao H, Ji Y, Chen W. Selenite resistance and biotransformation to SeNPs in Sinorhizobium meliloti 1021 and the synthetic promotion on alfalfa growth. Microbiol Res 2024; 280:127568. [PMID: 38118306 DOI: 10.1016/j.micres.2023.127568] [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: 10/27/2023] [Revised: 12/02/2023] [Accepted: 12/04/2023] [Indexed: 12/22/2023]
Abstract
Toxic selenite, commonly found in soil and water, can be transformed by microorganisms into selenium nanoparticles (SeNPs) as part of a detoxification process. In this study, a comprehensive investigation was conducted on the resistance and biotransformation of selenite in Sinorhizobium meliloti 1021 and the synergistic impact of SeNPs and the strain on alfalfa growth promotion was explored. Strain 1021 reduced 46% of 5 mM selenite into SeNPs within 72 h. The SeNPs, composed of proteins, lipids and polysaccharides, were primarily located outside rhizobial cells and had a tendency to aggregate. Under selenite stress, many genes participated in multidrug efflux, sulfur metabolism and redox processes were significantly upregulated. Of them, four genes, namely gmc, yedE, dsh3 and mfs, were firstly identified in strain 1021 that played crucial roles in selenite biotransformation and resistance. Biotoxic evaluations showed that selenite had toxic effects on roots and seedlings of alfalfa, while SeNPs exhibited antioxidant properties, promoted growth, and enhanced plant's tolerance to salt stress. Overall, our research provides novel insights into selenite biotransformation and resistance mechanisms in rhizobium and highlights the potential of SeNPs-rhizobium complex as biofertilizer to promote legume growth and salt tolerance.
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Affiliation(s)
- Huali Gao
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing 100193, China
| | - Yingrui Ji
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing 100193, China
| | - Wenfeng Chen
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing 100193, China.
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50
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Liang X, Li J, Yang Y, Jiang C, Guo Y. Designing salt stress-resilient crops: Current progress and future challenges. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:303-329. [PMID: 38108117 DOI: 10.1111/jipb.13599] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/10/2023] [Accepted: 12/15/2023] [Indexed: 12/19/2023]
Abstract
Excess soil salinity affects large regions of land and is a major hindrance to crop production worldwide. Therefore, understanding the molecular mechanisms of plant salt tolerance has scientific importance and practical significance. In recent decades, studies have characterized hundreds of genes associated with plant responses to salt stress in different plant species. These studies have substantially advanced our molecular and genetic understanding of salt tolerance in plants and have introduced an era of molecular design breeding of salt-tolerant crops. This review summarizes our current knowledge of plant salt tolerance, emphasizing advances in elucidating the molecular mechanisms of osmotic stress tolerance, salt-ion transport and compartmentalization, oxidative stress tolerance, alkaline stress tolerance, and the trade-off between growth and salt tolerance. We also examine recent advances in understanding natural variation in the salt tolerance of crops and discuss possible strategies and challenges for designing salt stress-resilient crops. We focus on the model plant Arabidopsis (Arabidopsis thaliana) and the four most-studied crops: rice (Oryza sativa), wheat (Triticum aestivum), maize (Zea mays), and soybean (Glycine max).
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Affiliation(s)
- Xiaoyan Liang
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100094, China
| | - Jianfang Li
- State Key Laboratory of Nutrient Use and Management, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100194, China
| | - Yongqing Yang
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100094, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100094, China
| | - Caifu Jiang
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100094, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100094, China
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100094, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100094, China
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
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