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Zhang J, Wang X, Hou J, Li X, Li M, Zhao W, He N. High-resolution community-level sodium variation on the Tibetan Plateau: Content, density, and storage. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 944:173766. [PMID: 38844211 DOI: 10.1016/j.scitotenv.2024.173766] [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: 03/13/2024] [Revised: 06/02/2024] [Accepted: 06/02/2024] [Indexed: 06/18/2024]
Abstract
Sodium (Na), a beneficial mineral element, stimulates plant growth through osmotic adjustment. Previous studies focused on Na content at the individual or species level, however, it is hard to link to ecosystem functions without exploring the characteristics (content, density, and storage) of Na at the community level. We conducted grid-plot sampling of different plant organs in 2040 natural plant communities on the Tibetan Plateau (TP) to comprehensively characterize community-level Na on a regional scale. The Na content was 0.57, 0.09, 0.07, and 0.71 mg g-1 in leaves, branches, trunks, and roots, respectively. Across biomes Na content was higher in deserts under drought stress. Oxygen partial pressure, radiation, precipitation, soil Na supply, and temperature significantly affected the spatial variation in Na content. Furthermore, we accurately simulated the spatial variation in Na density and produced a highly precise 1 km × 1 km spatial map of plant Na density on the TP using random forest algorithm, which demonstrated higher Na density in the southeast of TP. The total plant Na storage on the TP was estimated as 111.80 × 104 t. These findings provide great insights and references for understanding the plant community-level adaptation strategies and evaluating the mineral element status on a large scale, and provide valuable data for ecological model optimization in the future.
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Affiliation(s)
- Jiahui Zhang
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin 150040, China; Earth Critical Zone and Flux Research Station of Xing'an Mountains, Chinese Academy of Sciences, Daxing'anling 165200, China
| | - Xiaomeng Wang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Jihua Hou
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China; Beijing Key Laboratory of Forest Resources and Ecosystem Process, Beijing Forestry University, Beijing 100083, China.
| | - Xin Li
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Mingxu Li
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Wenzong Zhao
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Nianpeng He
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin 150040, China; Earth Critical Zone and Flux Research Station of Xing'an Mountains, Chinese Academy of Sciences, Daxing'anling 165200, China.
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2
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Wang C, Wen J, Liu Y, Yu B, Yang S. SOS2-AFP2 module regulates seed germination by inducing ABI5 degradation in response to salt stress in Arabidopsis. Biochem Biophys Res Commun 2024; 723:150190. [PMID: 38838447 DOI: 10.1016/j.bbrc.2024.150190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/07/2024]
Abstract
Soil salinity pose a significant challenge to global agriculture, threatening crop yields and food security. Understanding the salt tolerance mechanisms of plants is crucial for improving their survival under salt stress. AFP2, a negative regulator of ABA signaling, has been shown to play a crucial role in salt stress tolerance during seed germination. Mutations in AFP2 gene lead to increased sensitivity to salt stress. However, the underline mechanisms by which AFP2 regulates seed germination under salt stress remain elusive. In this study, we identified a protein interaction between AFP2 and SOS2, a Ser/Thr protein kinase known to play a critical role in salt stress response. Using a combination of genetic, biochemical, and physiological approaches, we investigated the role of the SOS2-AFP2 module in regulating seed germination under salt stress. Our findings reveal that SOS2 physically interacts with AFP2 and stabilizes it, leading to the degradation of the ABI5 protein, a negative transcription factor in seed germination under salt stress. This study sheds light on previously unknown connections within salt stress and ABA signaling, paving the way for novel strategies to enhance plant resilience against environmental challenges.
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Affiliation(s)
- Chuntao Wang
- Yuxi Normal University, Yuxi, 653100, China; Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
| | - Jing Wen
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuanyuan Liu
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Buzhu Yu
- Yuxi Normal University, Yuxi, 653100, China
| | - Shuda Yang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China
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Zhang C, Miao Y, Xiang Y, Zhang A. Brassinosteroid-signaling kinase ZmBSK7 enhances salt stress tolerance in maize. Biochem Biophys Res Commun 2024; 723:150222. [PMID: 38850813 DOI: 10.1016/j.bbrc.2024.150222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Salinity has become a crucial environmental factor that restricts plant growth, development, and productivity. Nevertheless, the mechanisms by which plants react to salt stress remain inadequately comprehended. In this study, we identified maize brassinosteroid-signaling kinase gene ZmBSK7 which is homologous to AtBSK1. Our results showed that ZmBSK7 is induced by salt stress and ZmBSK7 localizes in the plasma membrane. ZmBSK7 overexpression increases salt tolerance, while its knockdown decreases salt tolerance in maize. ZmBSK7 reduces the malondialdehyde (MDA) content and the percentage of electrolyte leakage, and also elevates the activities of antioxidant enzymes. Furthermore, ZmBSK7 promotes K+ content accumulation and reduces Na+/K+ ratio. Further found that ZmBSK7 physically interacts with K+ efflux antiporter 2 (ZmKEA2) in vivo and in vitro. Salt stress also increased the expression of ZmKEA2. Thus, ZmBSK7 improves salt tolerance in maize by affecting ZmKEA2 expression to promote K+ content accumulation and reduce Na+/K+ ratio. This study enhances the comprehension of BSK proteins and establishes a theoretical foundation for investigating salt stress tolerance in plants.
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Affiliation(s)
- Chen Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yadan Miao
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yang Xiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China; State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
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4
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Chen Z, Ma Y, Ren Y, Ma L, Tang X, Pan S, Duan M, Tian H, Mo Z. Multi-walled carbon nanotubes affect yield, antioxidant response, and rhizosphere microbial community of scented rice under combined cadmium-lead (Cd-Pb) stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 213:108826. [PMID: 38908351 DOI: 10.1016/j.plaphy.2024.108826] [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: 04/16/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/24/2024]
Abstract
Rice production is threatened by heavy metal stress. The use of multi-walled carbon nanotubes (MWCNTs) in agriculture has been reported in previous studies. We aimed to quantify the impact of MWCNTs on the growth and physiological characteristics of scented rice under cadmium (Cd) and lead (Pb) stresses. Therefore, a pot experiment was conducted, two scented rice varieties Yuxiangyouzhan and Xiangyaxiangzhan were used as materials grown under different concentrations of MWCNTs (0, 100, and 300 mg kg-1 recorded as CK, CNPs100, and CNPs300, respectively). The yield, antioxidant response, and rhizosphere microbial community of scented rice were studied. The results showed that compared with the CK treatment, the CNPs100 and CNPs300 treatments increased leaf dry weight by 17.95%-56.22% at the heading stage, and the H2O2 content in leaves decreased significantly by 36.64%-42.27% at the maturity stage. Under CNPs100 treatment, the grain yield of two scented rice varieties increased significantly by 17.54% and 27.40%, respectively. The MWCNTs regulated the distribution of the Cd and Pb in different plant tissues. The content of Cd (0.11-0.20 mg kg-1) and Pb (0.01-0.04 mg kg-1) in grain were at a safety level (<0.2 mg kg-1). Moreover, MWCNTs increased soil microbial community abundance and altered community composition structure under Cd-Pb stress, which in turn improved agronomic traits and quality of scented rice. Overall, this study suggested that the application of MWCNTs regulates the growth, yield, physiological response, and soil microbial community, the genotypes response effect of scented rice to MWCNTs is needed further studied.
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Affiliation(s)
- Zhilong Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Yixian Ma
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Yong Ren
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Biology & Pharmacy of Yulin Normal University, Yulin, 537000, China
| | - Lin Ma
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Xiangru Tang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China; Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, China; Guangzhou Key Laboratory for Science and Technology of Fragrant Rice, Guangzhou, 510642, China
| | - Shenggang Pan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China; Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, China; Guangzhou Key Laboratory for Science and Technology of Fragrant Rice, Guangzhou, 510642, China
| | - Meiyang Duan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China; Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, China; Guangzhou Key Laboratory for Science and Technology of Fragrant Rice, Guangzhou, 510642, China
| | - Hua Tian
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China; Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, China; Guangzhou Key Laboratory for Science and Technology of Fragrant Rice, Guangzhou, 510642, China
| | - Zhaowen Mo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China; Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, China; Guangzhou Key Laboratory for Science and Technology of Fragrant Rice, Guangzhou, 510642, China.
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Li YL, Xie LN, Li SH, Zhang D, Ge ZM. Photosynthetic carbon allocation in native and invasive salt marshes undergoing hydrological change. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 935:173232. [PMID: 38761926 DOI: 10.1016/j.scitotenv.2024.173232] [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: 12/26/2023] [Revised: 05/11/2024] [Accepted: 05/12/2024] [Indexed: 05/20/2024]
Abstract
Biogeochemical processes mediated by plants and soil in coastal marshes are vulnerable to environmental changes and biological invasion. In particular, tidal inundation and salinity stress will intensify under future rising sea level scenarios. In this study, the interactive effects of flooding regimes (non-waterlogging vs. waterlogging) and salinity (0, 5, 15, and 30 parts per thousand (ppt)) on photosynthetic carbon allocation in plant, rhizodeposition, and microbial communities in native (Phragmites australis) and invasive (Spartina alterniflora) marshes were investigated using mesocosm experiments and 13CO2 pulse-labeling techniques. The results showed that waterlogging and elevated salinity treatments decreased specific root allocation (SRA) of 13C, rhizodeposition allocation (RA) 13C, soil 13C content, grouped microbial PLFAs, and the fungal 13C proportion relative to total PLFAs-13C. The lowest SRA, RA, and fungal 13C proportion occurred under the combined waterlogging and high (30 ppt) salinity treatments. Relative to S. alterniflora, P. australis displayed greater sensitivity to hydrological changes, with a greater reduction in rhizodeposition, soil 13C content, and fungal PLFAs. S. alterniflora showed an earlier peak SRA but a lower root/shoot 13C ratio than P. australis. This suggests that S. alterniflora may transfer more photosynthetic carbon to the shoot and rhizosphere to facilitate invasion under stress. Waterlogging and high salinity treatments shifted C allocation towards bacteria over fungi for both plant species, with a higher allocation shift in S. alterniflora soil, revealing the species-specific microbial response to hydrological stresses. Potential shifts towards less efficient bacterial pathways might result in accelerated carbon loss. Over the study period, salinity was the primary driver for both species, explaining 33.2-50.8 % of 13C allocation in the plant-soil-microbe system. We propose that future carbon dynamics in coastal salt marshes under sea-level rise conditions depend on species-specific adaptive strategies and carbon allocation patterns of native and invasive plant-soil systems.
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Affiliation(s)
- Ya-Lei Li
- College of Ecology, Lishui University, 323000 Lishui, China; State Key Laboratory of Estuarine and Coastal Research, Institute of Eco-Chongming, Center for Blue Carbon Science and Technology, East China Normal University, 200241 Shanghai, China
| | - Li-Na Xie
- College of Ecology, Lishui University, 323000 Lishui, China; State Key Laboratory of Estuarine and Coastal Research, Institute of Eco-Chongming, Center for Blue Carbon Science and Technology, East China Normal University, 200241 Shanghai, China
| | - Shi-Hua Li
- School of Advanced Manufacturing, Fuzhou University, 362251 Jinjiang, China
| | - Dan Zhang
- State Key Laboratory of Estuarine and Coastal Research, Institute of Eco-Chongming, Center for Blue Carbon Science and Technology, East China Normal University, 200241 Shanghai, China
| | - Zhen-Ming Ge
- State Key Laboratory of Estuarine and Coastal Research, Institute of Eco-Chongming, Center for Blue Carbon Science and Technology, East China Normal University, 200241 Shanghai, China.
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Kaijser W, Lorenz AW, Brauer VS, Burfeid-Castellanos A, David GM, Nuy JK, Baikova D, Beszteri B, Gillmann SM, Kiesel J, Mayombo NAS, Peters K, Rettig K, Rolauffs P, Haase P, Hering D. Differential associations of five riverine organism groups with multiple stressors. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 934:173105. [PMID: 38750737 DOI: 10.1016/j.scitotenv.2024.173105] [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: 12/15/2023] [Revised: 03/29/2024] [Accepted: 05/07/2024] [Indexed: 05/20/2024]
Abstract
The decline of river and stream biodiversity results from multiple simultaneous occuring stressors, yet few studies explore responses explore responses across various taxonomic groups at the same locations. In this study, we address this shortcoming by using a coherent data set to study the association of nine commonly occurring stressors (five chemical, one morphological and three hydraulic) with five taxonomic groups (bacteria, fungi, diatoms, macro-invertebrates and fish). According to studies on single taxonomic groups, we hypothesise that gradients of chemical stressors structure community composition of all taxonomic groups, while gradients of hydraulic and morphological stressors are mainly related to larger organisms such as benthic macro-invertebrates and fish. Organisms were sampled over two years at 20 sites in two catchments: a recently restored urban lowland catchment (Boye) and a moderately disturbed rural mountainous catchment (Kinzig). Dissimilarity matrices were computed for each taxonomic group within a catchment. Taxonomic dissimilarities between sites were linked to stressor dissimilarities using multivariable Generalized Linear Mixed Models. Stressor gradients were longer in the Boye, but did in contrast to the Kinzig not cover low stress intensities. Accordingly, responses of the taxonomic groups were stronger in the Kinzig catchment than in the recently restored Boye catchment. The discrepancy between catchments underlines that associations to stressors strongly depend on which part of the stressor gradient is covered in a catchment. All taxonomic groups were related to conductivity. Bacteria, fungi and macro-invertebrates change with dissolved oxygen, and bacteria and fungi with total nitrogen. Morphological and hydraulic stressors had minor correlations with bacteria, fungi and diatoms, while macro-invertebrates were strongly related to fine sediment and discharge, and fish to high flow peaks. The results partly support our hypotheses about the differential associations of the different taxonomic groups with the stressors.
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Affiliation(s)
- Willem Kaijser
- Aquatic Ecology, University of Duisburg-Essen, Essen, Germany
| | - Armin W Lorenz
- Aquatic Ecology, University of Duisburg-Essen, Essen, Germany; Centre for Water and Environmental Research (ZWU), Essen, Germany
| | - Verena S Brauer
- Environmental Microbiology and Biotechnology, University of Duisburg-Essen, Essen, Germany; Centre for Water and Environmental Research (ZWU), Essen, Germany
| | | | - Gwendoline M David
- Department of Plankton and Microbial Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Stechlin, Germany
| | - Julia K Nuy
- Environmental Metagenomics, One Health Research Centre, University of Duisburg-Essen, Germany; Faculty of Biology, University of Duisburg-Essen, Essen, Germany; Centre for Water and Environmental Research (ZWU), Essen, Germany
| | - Daria Baikova
- Environmental Microbiology and Biotechnology, University of Duisburg-Essen, Essen, Germany
| | - Bánk Beszteri
- Phycology, University of Duisburg-Essen, Essen, Germany
| | | | - Jens Kiesel
- Department of Hydrology and Water Resources Management, Institute of Natural Resource Conservation, CAU, Kiel, Germany
| | | | - Kristin Peters
- Department of Hydrology and Water Resources Management, Institute of Natural Resource Conservation, CAU, Kiel, Germany
| | | | - Peter Rolauffs
- Aquatic Ecology, University of Duisburg-Essen, Essen, Germany
| | - Peter Haase
- Centre for Water and Environmental Research (ZWU), Essen, Germany; Department of River Ecology and Conservation, Senckenberg Research Institute and Natural History Museum Frankfurt, Gelnhausen, Germany
| | - Daniel Hering
- Aquatic Ecology, University of Duisburg-Essen, Essen, Germany; Centre for Water and Environmental Research (ZWU), Essen, Germany
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Vyas KD, Singh A. Juncus rigidus high biomass and cellulose productivity under wastewater salinity stress - A paradigm shift to the valorization of RO reject water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 933:173076. [PMID: 38734100 DOI: 10.1016/j.scitotenv.2024.173076] [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: 12/27/2023] [Revised: 04/27/2024] [Accepted: 05/06/2024] [Indexed: 05/13/2024]
Abstract
The use of water purifiers is intensively catching up and disposing of reverse osmosis reject water is of great concern. Reject water management using conventional methods is costly and harmful to the environment. To address this issue, the present study aims to utilize reverse osmosis reject wastewater using an eco-friendly approach. Juncus rigidus was treated with reject wastewater containing different salinity levels. Wastewater-treated plant dry biomass increased with increasing reject water salinity, and 625.3 g dry biomass recovered in treatment-B (~18,520 ppm). However, ~23,220 ppm wastewater salinity was lethal to the plants. The cellulose was extracted by alkali hydrolysis. The cellulose content in the wastewater-treated biomass was significantly higher in Treatment-B compared to both the control and Treatment-A (~12,744 ppm). The water salinity enhanced the cellulose (26.49 %) production in J. rigidus. Cellulose purity was confirmed using spectroscopic and thermogravimetric means. XRD shows highest crystallinity Index (77.29) with a d-spacing of 4.7 Å and 5.7 nm crystallite size in treatment-B. FTIR results reveal well-defined relevant peaks for OH, CH, CO, CH2, C-O-C, CO groups in treatment-B cellulose. Salinity impacts carboxyl groups in treatment B cellulose with a sharper and intense peak at 1644 cm-1 responsible for water absorption. Treatment-B exhibits higher thermal stability due to increased crystallinity. DSC shows endothermic depolymerization of cellulose with distinct peaks for different treatments. Morphological traits got better with increasing salinity with no adverse effect on cellulose. Salinity moderately affected the water absorption capacity of cellulose. All cellulose samples were devoid of gram-negative bacteria known by microbial test. This pioneering work underscores the plant's remarkable capacity not only to accomplish the circular economy by the valorization of wastewater obtained from various water purifiers for Juncus cultivation for cellulose production for diverse applications but also to generate income from wastewater.
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Affiliation(s)
- Krupali Dipakbhai Vyas
- Applied Phycology and Biotechnology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Aneesha Singh
- Applied Phycology and Biotechnology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India.
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8
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Luo C, Zhang L, Ali MM, Xu Y, Liu Z. Environmental risk substances in soil on seed germination: Chemical species, inhibition performance, and mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134518. [PMID: 38749244 DOI: 10.1016/j.jhazmat.2024.134518] [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: 03/03/2024] [Revised: 04/20/2024] [Accepted: 04/30/2024] [Indexed: 05/30/2024]
Abstract
Nowadays, numerous environmental risk substances in soil worldwide have exhibited serious germination inhibition of crop seeds, posing a threat to food supply and security. This review provides a comprehensive summary and discussion of the inhibitory effects of environmental risk substances on seed germination, encompassing heavy metals, microplastics, petroleum hydrocarbons, salinity, phenols, essential oil, agricultural waste, antibiotics, etc. The impacts of species, concentrations, and particle sizes of various environmental risk substances are critically investigated. Furthermore, three primary inhibition mechanisms of environmental risk substances are elucidated: hindering water absorption, inducing oxidative damage, and damaging seed cells/organelles/cell membranes. To address these negative impacts, diverse effective coping measures such as biochar/compost addition, biological remediation, seed priming, coating, and genetic modification are proposed. In brief, this study systematically analyzes the negative effects of environmental risk substances on seed germination, and provides a basis for the comprehensive understanding and future implementation of efficient treatments to address this significant challenge and ensure food security and human survival.
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Affiliation(s)
- Cheng Luo
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Linyan Zhang
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Mahmoud M Ali
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; Agricultural Engineering Research Institute, Agricultural Research Center, Giza 12311, Egypt
| | - Yongdong Xu
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; State Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing 100083, China.
| | - Zhidan Liu
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; State Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing 100083, China.
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9
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Lai Y, Ma J, Zhang X, Xuan X, Zhu F, Ding S, Shang F, Chen Y, Zhao B, Lan C, Unver T, Huo G, Li X, Wang Y, Liu Y, Lu M, Pan X, Yang D, Li M, Zhang B, Zhang D. High-quality chromosome-level genome assembly and multi-omics analysis of rosemary (Salvia rosmarinus) reveals new insights into the environmental and genome adaptation. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:1833-1847. [PMID: 38363812 PMCID: PMC11182591 DOI: 10.1111/pbi.14305] [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: 03/29/2023] [Revised: 12/27/2023] [Accepted: 01/18/2024] [Indexed: 02/18/2024]
Abstract
High-quality genome of rosemary (Salvia rosmarinus) represents a valuable resource and tool for understanding genome evolution and environmental adaptation as well as its genetic improvement. However, the existing rosemary genome did not provide insights into the relationship between antioxidant components and environmental adaptability. In this study, by employing Nanopore sequencing and Hi-C technologies, a total of 1.17 Gb (97.96%) genome sequences were mapped to 12 chromosomes with 46 121 protein-coding genes and 1265 non-coding RNA genes. Comparative genome analysis reveals that rosemary had a closely genetic relationship with Salvia splendens and Salvia miltiorrhiza, and it diverged from them approximately 33.7 million years ago (MYA), and one whole-genome duplication occurred around 28.3 MYA in rosemary genome. Among all identified rosemary genes, 1918 gene families were expanded, 35 of which are involved in the biosynthesis of antioxidant components. These expanded gene families enhance the ability of rosemary adaptation to adverse environments. Multi-omics (integrated transcriptome and metabolome) analysis showed the tissue-specific distribution of antioxidant components related to environmental adaptation. During the drought, heat and salt stress treatments, 36 genes in the biosynthesis pathways of carnosic acid, rosmarinic acid and flavonoids were up-regulated, illustrating the important role of these antioxidant components in responding to abiotic stresses by adjusting ROS homeostasis. Moreover, cooperating with the photosynthesis, substance and energy metabolism, protein and ion balance, the collaborative system maintained cell stability and improved the ability of rosemary against harsh environment. This study provides a genomic data platform for gene discovery and precision breeding in rosemary. Our results also provide new insights into the adaptive evolution of rosemary and the contribution of antioxidant components in resistance to harsh environments.
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Affiliation(s)
- Yong Lai
- College of ForestryHenan Agricultural UniversityZhengzhouHenanChina
| | - Jinghua Ma
- College of ForestryHenan Agricultural UniversityZhengzhouHenanChina
| | - Xuebin Zhang
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi‐Omics Research, School of Life SciencesHenan UniversityKaifengHenanChina
| | - Xiaobo Xuan
- Key Laboratory of Water Management and Water Security for Yellow River BasinMinistry of Water ResourcesZhengzhouHenanChina
| | - Fengyun Zhu
- School of Biological and Food Processing EngineeringHuanghuai UniversityZhumadianHenanChina
| | - Shen Ding
- College of ForestryHenan Agricultural UniversityZhengzhouHenanChina
| | - Fude Shang
- College of Life ScienceHenan Agricultural UniversityZhengzhouHenanChina
| | - Yuanyuan Chen
- College of ForestryHenan Agricultural UniversityZhengzhouHenanChina
| | - Bing Zhao
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi‐Omics Research, School of Life SciencesHenan UniversityKaifengHenanChina
| | - Chen Lan
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi‐Omics Research, School of Life SciencesHenan UniversityKaifengHenanChina
| | | | - George Huo
- Department of BiologyEast Carolina UniversityGreenvilleNorth CarolinaUSA
| | - Ximei Li
- College of ForestryHenan Agricultural UniversityZhengzhouHenanChina
| | - Yihan Wang
- College of Life ScienceHenan Agricultural UniversityZhengzhouHenanChina
| | - Yufang Liu
- College of ForestryHenan Agricultural UniversityZhengzhouHenanChina
| | - Mengfei Lu
- College of ForestryHenan Agricultural UniversityZhengzhouHenanChina
| | - Xiaoping Pan
- Department of BiologyEast Carolina UniversityGreenvilleNorth CarolinaUSA
| | - Deshuang Yang
- College of ForestryHenan Agricultural UniversityZhengzhouHenanChina
| | - Mingwan Li
- College of ForestryHenan Agricultural UniversityZhengzhouHenanChina
| | - Baohong Zhang
- Department of BiologyEast Carolina UniversityGreenvilleNorth CarolinaUSA
| | - Dangquan Zhang
- College of ForestryHenan Agricultural UniversityZhengzhouHenanChina
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10
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Jiménez-Estévez E, Martínez-Martínez A, Amo J, Yáñez A, Miñarro P, Martínez V, Nieves-Cordones M, Rubio F. Increased tolerance to low K +, and to cationic stress of Arabidopsis plants by expressing the F130S mutant version of the K + transporter AtHAK5. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 212:108768. [PMID: 38797008 DOI: 10.1016/j.plaphy.2024.108768] [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: 03/21/2024] [Revised: 05/08/2024] [Accepted: 05/21/2024] [Indexed: 05/29/2024]
Abstract
Potassium (K+) selectivity of high-affinity K+ uptake systems is crucial for plant growth under low K+ and in the presence of inhibitors of K+ uptake that are toxic to plants such as Na+ or Cs+. Here, we express a mutated version of the Arabidopsis AtHAK5 high-affinity K+ transporter consisting on a change of phenylalanine 130 to serine (F130S) in athak5 akt1 double mutant plants. F130S-expressing plants show better growth, increased K+ uptake from low external concentrations and higher K+ contents when grown at low K+ (10 μM) and when grown at low K+ in the presence of Na+ (15 mM) or Cs+ (1 μM). In addition, these plants accumulate less Na+ and Cs+, resulting in lower Na+/K+ and Cs+/K+ ratios, which are important determinants of plant tolerance to salt stress and to Cs+-polluted soils. Structure analysis of AtHAK5 suggest that the F130 residue approaches the intracellular gate of the K+ tunnel of AtHAK5, affecting somehow its ionic selectivity. Modification of transport systems has a large potential to face challenges of future agriculture such as sustainable production under abiotic stress conditions imposed by climate change.
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Affiliation(s)
- Elisa Jiménez-Estévez
- Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, Campus de Espinardo, 30100, Murcia, Spain
| | - Almudena Martínez-Martínez
- Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, Campus de Espinardo, 30100, Murcia, Spain
| | - Jesús Amo
- Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, Campus de Espinardo, 30100, Murcia, Spain
| | - Adrián Yáñez
- Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, Campus de Espinardo, 30100, Murcia, Spain
| | - Pedro Miñarro
- Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, Campus de Espinardo, 30100, Murcia, Spain
| | - Vicente Martínez
- Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, Campus de Espinardo, 30100, Murcia, Spain
| | - Manuel Nieves-Cordones
- Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, Campus de Espinardo, 30100, Murcia, Spain
| | - Francisco Rubio
- Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, Campus de Espinardo, 30100, Murcia, Spain.
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11
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Lv J, Zhou F, Wei Q, Long X, Tian W, Zhai J, Wang J, Zhang Q, Wan D. An alternative 3' splice site of PeuHKT1;3 improves the response to salt stress through enhancing affinity to K + in Populus. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 212:108776. [PMID: 38843683 DOI: 10.1016/j.plaphy.2024.108776] [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: 01/29/2024] [Revised: 04/30/2024] [Accepted: 05/25/2024] [Indexed: 06/17/2024]
Abstract
Alternative splicing (AS) serves as a crucial post-transcriptional regulator in plants that contributes to the resistance to salt stress. However, the underlying mechanism is largely unknown. In this research, we identified an important AS transcript in Populus euphratica, PeuHKT1:3a, generated by alternative 3' splice site splicing mode that resulted in the removal of 252 bases at the 5' end of the first exon in PeuHKT1:3. Protein sequence comparison showed that the site of AS occurred in PeuHKT1:3 is located at a crucial Ser residue within the first pore-loop domain, which leads to inefficient K+ transport in HKT I-type transporters. Expressing PeuHKT1;3a in an axt3 mutant yeast strain can effectively compensate for the lack of intracellular K+, whereas the expression of PeuHKT1;3 cannot yield the effect. Furthermore, in transgenic Arabidopsis and poplar plants, it was observed that lines expressing PeuHKT1;3a exhibited greater salt tolerance compared to those expressing the PeuHKT1;3 strain. Analysis of ion content and flux demonstrated that the transgenic PeuHKT1;3a line exhibited significantly higher K+ content compared to the PeuHKT1;3 line, while there was no significant difference in Na+ content. In conclusion, our findings revealed that AS can give rise to novel variants of HKT I-type proteins in P. euphratica with modified K+ selectivity to keep a higher K+/Na+ ratio to enhanced salt tolerance.
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Affiliation(s)
- Jiaojiao Lv
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China.
| | - Fangfang Zhou
- College of Life and Health, Zhengzhou Technical College, Zhengzhou 450121, China.
| | - Qianqian Wei
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China.
| | - Xiaoqin Long
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China.
| | - Wenjing Tian
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China.
| | - Jiajia Zhai
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China.
| | - Junjie Wang
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China.
| | - Qi Zhang
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China.
| | - Dongshi Wan
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China.
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12
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Boussora F, Triki T, Bennani L, Bagues M, Ben Ali S, Ferchichi A, Ngaz K, Guasmi F. Mineral accumulation, relative water content and gas exchange are the main physiological regulating mechanisms to cope with salt stress in barley. Sci Rep 2024; 14:14931. [PMID: 38942909 PMCID: PMC11213892 DOI: 10.1038/s41598-024-65967-5] [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: 02/22/2024] [Accepted: 06/25/2024] [Indexed: 06/30/2024] Open
Abstract
Salinity has become a major environmental concern for agricultural lands, leading to decreased crop yields. Hence, plant biology experts aim to genetically improve barley's adaptation to salinity stress by deeply studying the effects of salt stress and the responses of barley to this stress. In this context, our study aims to explore the variation in physiological and biochemical responses of five Tunisian spring barley genotypes to salt stress during the heading phase. Two salinity treatments were induced by using 100 mM NaCl (T1) and 250 mM NaCl (T2) in the irrigation water. Significant phenotypic variations were detected among the genotypes in response to salt stress. Plants exposed to 250 mM of NaCl showed an important decline in all studied physiological parameters namely, gas exchange, ions concentration and relative water content RWC. The observed decreases in concentrations ranged from, approximately, 6.64% to 40.76% for K+, 5.91% to 43.67% for Na+, 14.12% to 52.38% for Ca2+, and 15.22% to 38.48% for Mg2+ across the different genotypes and salt stress levels. However, under salinity conditions, proline and soluble sugars increased for all genotypes with an average increase of 1.6 times in proline concentrations and 1.4 times in soluble sugars concentration. Furthermore, MDA levels rose also for all genotypes, with the biggest rise in Lemsi genotype (114.27% of increase compared to control). Ardhaoui and Rihane showed higher photosynthetic activity compared to the other genotypes across all treatments. The stepwise regression approach identified potassium content, K+/Na+ ratio, relative water content, stomatal conductance and SPAD measurement as predominant traits for thousand kernel weight (R2 = 84.06), suggesting their significant role in alleviating salt stress in barley. Overall, at heading stage, salt accumulation in irrigated soils with saline water significantly influences the growth of barley by influencing gas exchange parameters, mineral composition and water content, in a genotype-dependent manner. These results will serve on elucidating the genetic mechanisms underlying these variations to facilitate targeted improvements in barley's tolerance to salt stress.
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Affiliation(s)
- Faiza Boussora
- Drylands and Oases Cropping Laboratory LACO, Institute of Arid Lands of Medenine (IRA), Sreet El Djorf 22.5 km, 4119, Medenine, Tunisia.
| | - Tebra Triki
- Drylands and Oases Cropping Laboratory LACO, Institute of Arid Lands of Medenine (IRA), Sreet El Djorf 22.5 km, 4119, Medenine, Tunisia
| | - Leila Bennani
- Drylands and Oases Cropping Laboratory LACO, Institute of Arid Lands of Medenine (IRA), Sreet El Djorf 22.5 km, 4119, Medenine, Tunisia
| | - Mohamed Bagues
- Drylands and Oases Cropping Laboratory LACO, Institute of Arid Lands of Medenine (IRA), Sreet El Djorf 22.5 km, 4119, Medenine, Tunisia
| | - Sihem Ben Ali
- Drylands and Oases Cropping Laboratory LACO, Institute of Arid Lands of Medenine (IRA), Sreet El Djorf 22.5 km, 4119, Medenine, Tunisia
| | - Ali Ferchichi
- Department of Rural Engineering, Water, and Forests GREF, National Institute of Agronomic Research of Tunis (INAT), 43 Charles Nicolle, 1082, Tunis, Tunisia
| | - Kamel Ngaz
- Drylands and Oases Cropping Laboratory LACO, Institute of Arid Lands of Medenine (IRA), Sreet El Djorf 22.5 km, 4119, Medenine, Tunisia
| | - Ferdaous Guasmi
- Drylands and Oases Cropping Laboratory LACO, Institute of Arid Lands of Medenine (IRA), Sreet El Djorf 22.5 km, 4119, Medenine, Tunisia
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Ilyas M, Maqsood MF, Shahbaz M, Zulfiqar U, Ahmad K, Naz N, Ali MF, Ahmad M, Ali Q, Yong JWH, Ali HM. Alleviating salinity stress in canola (Brassica napus L.) through exogenous application of salicylic acid. BMC PLANT BIOLOGY 2024; 24:611. [PMID: 38926637 PMCID: PMC11210054 DOI: 10.1186/s12870-024-05314-y] [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: 01/26/2024] [Accepted: 06/19/2024] [Indexed: 06/28/2024]
Abstract
Canola, a vital oilseed crop, is grown globally for food and biodiesel. With the enormous demand for growing various crops, the utilization of agriculturally marginal lands is emerging as an attractive alternative, including brackish-saline transitional lands. Salinity is a major abiotic stress limiting growth and productivity of most crops, and causing food insecurity. Salicylic acid (SA), a small-molecule phenolic compound, is an essential plant defense phytohormone that promotes immunity against pathogens. Recently, several studies have reported that SA was able to improve plant resilience to withstand high salinity. For this purpose, a pot experiment was carried out to ameliorate the negative effects of sodium chloride (NaCl) on canola plants through foliar application of SA. Two canola varieties Faisal (V1) and Super (V2) were assessed for their growth performance during exposure to high salinity i.e. 0 mM NaCl (control) and 200 mM NaCl. Three levels of SA (0, 10, and 20 mM) were applied through foliar spray. The experimental design used for this study was completely randomized design (CRD) with three replicates. The salt stress reduced the shoot and root fresh weights up to 50.3% and 47% respectively. In addition, foliar chlorophyll a and b contents decreased up to 61-65%. Meanwhile, SA treatment diminished the negative effects of salinity and enhanced the shoot fresh weight (49.5%), root dry weight (70%), chl. a (36%) and chl. b (67%). Plants treated with SA showed an increased levels of both enzymatic i.e. (superoxide dismutase (27%), peroxidase (16%) and catalase (34%)) and non-enzymatic antioxidants i.e. total soluble protein (20%), total soluble sugar (17%), total phenolic (22%) flavonoids (19%), anthocyanin (23%), and endogenous ascorbic acid (23%). Application of SA also increased the levels of osmolytes i.e. glycine betaine (31%) and total free proline (24%). Salinity increased the concentration of Na+ ions and concomitantly decreased the K+ and Ca2+ absorption in canola plants. Overall, the foliar treatments of SA were quite effective in reducing the negative effects of salinity. By comparing both varieties of canola, it was observed that variety V2 (Super) grew better than variety V1 (Faisal). Interestingly, 20 mM foliar application of SA proved to be effective in ameliorating the negative effects of high salinity in canola plants.
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Affiliation(s)
- Maria Ilyas
- Department of Botany, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | | | - Muhammad Shahbaz
- Department of Botany, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Usman Zulfiqar
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan.
| | - Kamran Ahmad
- Department of Botany, College of Life Sciences, Northwest A&F University, Yangling , Shaanxi, 712100, China
| | - Nargis Naz
- Department of Botany, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Muhammad Fraz Ali
- College of Agronomy, Northwest A&F University, Yangling, Xianyang, 712100, China
| | - Muhammad Ahmad
- Department of Agronomy, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Qasim Ali
- Department of Soil Science, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Jean Wan Hong Yong
- Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Alnarp, Sweden.
| | - Hayssam M Ali
- Department of Botany and Microbiology, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
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14
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Badr A, Basuoni MM, Ibrahim M, Salama YE, Abd-Ellatif S, Abdel Razek ES, Amer KE, Ibrahim AA, Zayed EM. Ameliorative impacts of gamma-aminobutyric acid (GABA) on seedling growth, physiological biomarkers, and gene expression in eight wheat (Triticum aestivum L.) cultivars under salt stress. BMC PLANT BIOLOGY 2024; 24:605. [PMID: 38926865 PMCID: PMC11201109 DOI: 10.1186/s12870-024-05264-5] [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: 02/28/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024]
Abstract
Plants spontaneously accumulate γ-aminobutyric acid (GABA), a nonprotein amino acid, in response to various stressors. Nevertheless, there is limited knowledge regarding the precise molecular mechanisms that plants employ to cope with salt stress. The objective of this study was to investigate the impact of GABA on the salt tolerance of eight distinct varieties of bread wheat (Triticum aestivum L.) by examining plant growth rates and physiological and molecular response characteristics. The application of salt stress had a detrimental impact on plant growth markers. Nevertheless, the impact was mitigated by the administration of GABA in comparison to the control treatment. When the cultivars Gemmiza 7, Gemmiza 9, and Gemmiza 12 were exposed to GABA at two distinct salt concentrations, there was a substantial increase in both the leaf chlorophyll content and photosynthetic rate. Both the control wheat cultivars and the plants exposed to salt treatment and GABA treatment showed alterations in stress-related biomarkers and antioxidants. This finding demonstrated that GABA plays a pivotal role in mitigating the impact of salt treatments on wheat cultivars. Among the eight examined kinds of wheat, CV. Gemmiza 7 and CV. Gemmiza 11 exhibited the most significant alterations in the expression of their TaSOS1 genes. CV. Misr 2, CV. Sakha 94, and CV. Sakha 95 exhibited the highest degree of variability in the expression of the NHX1, DHN3, and GR genes, respectively. The application of GABA to wheat plants enhances their ability to cope with salt stress by reducing the presence of reactive oxygen species (ROS) and other stress indicators, regulating stomatal aperture, enhancing photosynthesis, activating antioxidant enzymes, and upregulating genes involved in salt stress tolerance.
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Affiliation(s)
- Abdelfattah Badr
- Botany and Microbiology Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Mostafa M Basuoni
- Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, Cairo, 11884, Egypt
| | - Mohamed Ibrahim
- Department of Botany, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Yossry E Salama
- Crop Science Department, Faculty of Agriculture, Damanhour University, Beheira Governorate, Damanhour, 22516, Egypt
| | - Sawsan Abd-Ellatif
- Bioprocess Development Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of the Scientific Research and Technological Application (SRTA-City), New Borg El-Arab, Alexandria, 21934, Egypt
| | - Elsayed S Abdel Razek
- Livestock Research Department, City of Scientific Research and Technological Applications (SRTA-City), Arid Lands Cultivation Research Institute (ALCRI), New Borg El-Arab, Alexandria, 21934, Egypt
| | - Khaled E Amer
- Crop Science Department, Faculty of Agriculture, Damanhour University, Beheira Governorate, Damanhour, 22516, Egypt
| | - Amira A Ibrahim
- Botany and Microbiology Department, Faculty of Science, Arish University, Al-Arish, 45511, Egypt.
| | - Ehab M Zayed
- Cell Study Research Department, Field Crops Research Institute, Agricultural Research Center (ARC), Giza, 12619, Egypt
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15
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Cho Y. Arabidopsis AGB1 participates in salinity response through bZIP17-mediated unfolded protein response. BMC PLANT BIOLOGY 2024; 24:586. [PMID: 38902609 PMCID: PMC11191249 DOI: 10.1186/s12870-024-05296-x] [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: 04/15/2024] [Accepted: 06/13/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND Plant heterotrimeric G proteins respond to various environmental stresses, including high salinity. It is known that Gβ subunit AGB1 functions in maintaining local and systemic Na+/K+ homeostasis to accommodate ionic toxicity under salt stress. However, whether AGB1 contributes to regulating gene expression for seedling's survival under high salinity remains unclear. RESULTS We showed that AGB1-Venus localized to nuclei when facing excessive salt, and the induction of a set of bZIP17-dependent salt stress-responsive genes was reduced in the agb1 mutant. We confirmed both genetic and physical interactions of AGB1 and bZIP17 in plant salinity response by comparing salt responses in the single and double mutants of agb1 and bzip17 and by BiFC assay, respectively. In addition, we show that AGB1 depletion decreases nuclei-localization of transgenic mRFP-bZIP17 under salt stress, as shown in s1p s2p double mutant in the Agrobacteria-mediated transient mRFP-bZIP17 expression in young seedlings. CONCLUSIONS Our results indicate that AGB1 functions in S1P and/or S2P-mediated proteolytic processing of bZIP17 under salt stress to regulate the induction of salinity-responsive gene expression.
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Affiliation(s)
- Yueh Cho
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 115201, Taiwan.
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16
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Feng Z, Xu Y, Xie Z, Yang Y, Lu G, Jin Y, Wang M, Liu M, Yang H, Li W, Liang Z. Overexpression of Abscisic Acid Biosynthesis Gene OsNCED3 Enhances Survival Rate and Tolerance to Alkaline Stress in Rice Seedlings. PLANTS (BASEL, SWITZERLAND) 2024; 13:1713. [PMID: 38931145 PMCID: PMC11207436 DOI: 10.3390/plants13121713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 06/18/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024]
Abstract
Alkaline stress with high pH levels could significantly influence plant growth and survival. The enzyme 9-cis-epoxycarotenoid dioxygenase (NCED) serves as a critical bottleneck in the biosynthesis of abscisic acid (ABA), making it essential for regulating stress tolerance. Here, we show that OsNCED3-overexpressing rice lines have increased ABA content by up to 50.90% and improved transcription levels of numerous genes involved in stress responses that significantly enhance seedling survival rates. Overexpression of OsNCED3 increased the dry weight contents of the total chlorophyll, proline, soluble sugar, starch, and the activities of antioxidant enzymes of rice seedlings, while reducing the contents of O2·-, H2O2, and malondialdehyde under hydroponic alkaline stress conditions simulated by 10, 15, and 20 mmol L-1 of Na2CO3. Additionally, the OsNCED3-overexpressing rice lines exhibited a notable increase in the expression of OsNCED3; ABA response-related genes OsSalT and OsWsi18; ion homeostasis-related genes OsAKT1, OsHKT1;5, OsSOS1, and OsNHX5; and ROS scavenging-related genes OsCu/Zn-SOD, OsFe-SOD, OsPOX1, OsCATA, OsCATB, and OsAPX1 in rice seedling leaves. The results of these findings suggest that overexpression of OsNCED3 upregulates endogenous ABA levels and the expression of stress response genes, which represents an innovative molecular approach for enhancing the alkaline tolerance of rice seedlings.
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Affiliation(s)
- Zhonghui Feng
- College of Life Science, Baicheng Normal University, Baicheng 137000, China; (Z.F.); (Z.X.); (Y.Y.)
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (Y.X.); (G.L.); (Y.J.); (M.W.); (M.L.); (H.Y.)
| | - Yang Xu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (Y.X.); (G.L.); (Y.J.); (M.W.); (M.L.); (H.Y.)
| | - Zhiming Xie
- College of Life Science, Baicheng Normal University, Baicheng 137000, China; (Z.F.); (Z.X.); (Y.Y.)
| | - Yaqiong Yang
- College of Life Science, Baicheng Normal University, Baicheng 137000, China; (Z.F.); (Z.X.); (Y.Y.)
| | - Guanru Lu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (Y.X.); (G.L.); (Y.J.); (M.W.); (M.L.); (H.Y.)
| | - Yangyang Jin
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (Y.X.); (G.L.); (Y.J.); (M.W.); (M.L.); (H.Y.)
| | - Mingming Wang
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (Y.X.); (G.L.); (Y.J.); (M.W.); (M.L.); (H.Y.)
- Jilin Da’an Farmland Ecosystem National Observation and Research Station, Da’an 131317, China
| | - Miao Liu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (Y.X.); (G.L.); (Y.J.); (M.W.); (M.L.); (H.Y.)
- Jilin Da’an Farmland Ecosystem National Observation and Research Station, Da’an 131317, China
| | - Haoyu Yang
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (Y.X.); (G.L.); (Y.J.); (M.W.); (M.L.); (H.Y.)
- Jilin Da’an Farmland Ecosystem National Observation and Research Station, Da’an 131317, China
| | - Weiqiang Li
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (Y.X.); (G.L.); (Y.J.); (M.W.); (M.L.); (H.Y.)
- Jilin Da’an Farmland Ecosystem National Observation and Research Station, Da’an 131317, China
| | - Zhengwei Liang
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (Y.X.); (G.L.); (Y.J.); (M.W.); (M.L.); (H.Y.)
- Jilin Da’an Farmland Ecosystem National Observation and Research Station, Da’an 131317, China
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17
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Liu Z, Xue W, Jiang Q, Olaniran AO, Zhong X. Low-cost and reliable substrate-based phenotyping platform for screening salt tolerance of cutting propagation-dependent grass, paspalum vaginatum. PLANT METHODS 2024; 20:94. [PMID: 38898477 PMCID: PMC11186238 DOI: 10.1186/s13007-024-01225-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: 12/30/2023] [Accepted: 06/11/2024] [Indexed: 06/21/2024]
Abstract
BACKGROUND Salt tolerance in plants is defined as their ability to grow and complete their life cycle under saline conditions. Staple crops have limited salt tolerance, but forage grass can survive in large unexploited saline areas of costal or desert land. However, due to the restriction of self-incompatible fertilization in many grass species, vegetative propagation via stem cuttings is the dominant practice; this is incompatible with current methodologies of salt-tolerance phenotyping, which have been developed for germination-based seedling growth. Therefore, the performance of seedlings from cuttings under salt stress is still fuzzy. Moreover, the morphological traits involved in salt tolerance are still mostly unknown, especially under experimental conditions with varying levels of stress. RESULTS To estimate the salt tolerance of cutting propagation-dependent grasses, a reliable and low-cost workflow was established with multiple saline treatments, using Paspalum vaginatum as the material and substrate as medium, where cold stratification and selection of stem segments were the two variables used to control for experimental errors. Average leaf number (ALN) was designated as the best criterion for evaluating ion-accumulated salt tolerance. The reliability of ALN was revealed by the consistent results among four P. vaginatum genotypes, and three warm-season (pearl millet, sweet sorghum, and wild maize) and four cold-season (barley, oat, rye, and ryegrass) forage cultivars. Dynamic curves simulated by sigmoidal mathematical models were well-depicted for the calculation of the key parameter, Salt50. The reliability of the integrated platform was further validated by screening 48 additional recombinants, which were previously generated from a self-fertile mutant of P. vaginatum. The genotypes displaying extreme ALN-based Salt50 also exhibited variations in biomass and ion content, which not only confirmed the reliability of our phenotyping platform but also the representativeness of the aerial ALN trait for salt tolerance. CONCLUSIONS Our phenotyping platform is proved to be compatible with estimations in both germination-based and cutting propagation-dependent seedling tolerance under salt stresses. ALN and its derived parameters are prone to overcome the species barriers when comparing salt tolerance of different species together. The accuracy and reliability of the developed phenotyping platform is expected to benefit breeding programs in saline agriculture.
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Affiliation(s)
- Zhiwei Liu
- National Forage Breeding Innovation Base (JAAS), Nanjing, P. R. China
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, P. R. China
- Key Laboratory for Crop and Animal Integrated Farming of Ministry of Agriculture and Rural Affairs, Nanjing, P. R. China
- College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Durban, South Africa
| | - Wentao Xue
- National Forage Breeding Innovation Base (JAAS), Nanjing, P. R. China
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, P. R. China
- Key Laboratory for Crop and Animal Integrated Farming of Ministry of Agriculture and Rural Affairs, Nanjing, P. R. China
- Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs, Nanjing, P.R. China
| | - Qijuan Jiang
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, P. R. China
- College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing, P. R. China
| | | | - Xiaoxian Zhong
- National Forage Breeding Innovation Base (JAAS), Nanjing, P. R. China.
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, P. R. China.
- Key Laboratory for Crop and Animal Integrated Farming of Ministry of Agriculture and Rural Affairs, Nanjing, P. R. China.
- Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs, Nanjing, P.R. China.
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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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19
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Noor J, Ahmad I, Ullah A, Iqbal B, Anwar S, Jalal A, Okla MK, Alaraidh IA, Abdelgawad H, Fahad S. Enhancing saline stress tolerance in soybean seedlings through optimal NH 4+/NO 3- ratios: a coordinated regulation of ions, hormones, and antioxidant potential. BMC PLANT BIOLOGY 2024; 24:572. [PMID: 38890574 PMCID: PMC11184694 DOI: 10.1186/s12870-024-05294-z] [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: 02/05/2024] [Accepted: 06/13/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND Nitrogen (N) availability is crucial in regulating plants' abiotic stress resistance, particularly at the seedling stage. Nevertheless, plant responses to N under salinity conditions may vary depending on the soil's NH4+ to NO3- ratio. METHODS In this study, we investigated the effects of different NH4+:NO3- ratios (100/0, 0/100, 25/75, 50/50, and 75/25) on the growth and physio-biochemical responses of soybean seedlings grown under controlled and saline stress conditions (0-, 50-, and 100-mM L- 1 NaCl and Na2SO4, at a 1:1 molar ratio). RESULTS We observed that shoot length, root length, and leaf-stem-root dry weight decreased significantly with increased saline stress levels compared to control. Moreover, there was a significant accumulation of Na+, Cl-, hydrogen peroxide (H2O2), and malondialdehyde (MDA) but impaired ascorbate-glutathione pools (AsA-GSH). They also displayed lower photosynthetic pigments (chlorophyll-a and chlorophyll-b), K+ ion, K+/Na+ ratio, and weakened O2•--H2O2-scavenging enzymes such as superoxide dismutase, catalase, peroxidase, monodehydroascorbate reductase, glutathione reductase under both saline stress levels, while reduced ascorbate peroxidase, and dehydroascorbate reductase under 100-mM stress, demonstrating their sensitivity to a saline environment. Moreover, the concentrations of proline, glycine betaine, total phenolic, flavonoids, and abscisic acid increased under both stresses compared to the control. They also exhibited lower indole acetic acid, gibberellic acid, cytokinins, and zeatine riboside, which may account for their reduced biomass. However, NH4+:NO3- ratios caused a differential response to alleviate saline stress toxicity. Soybean seedlings supplemented with optimal ratios of NH4+:NO3- (T3 = 25:75 and T = 4 50:50) displayed lower Na+ and Cl- and ABA but improved K+ and K+/Na+, pigments, growth hormones, and biomass compared to higher NH4+:NO3- ratios. They also exhibited higher O2•--H2O2-scavenging enzymes and optimized H2O2, MDA, and AsA-GSH pools status in favor of the higher biomass of seedlings. CONCLUSIONS In summary, the NH4+ and NO3- ratios followed the order of 50:50 > 25:75 > 0:100 > 75:25 > 100:0 for regulating the morpho-physio-biochemical responses in seedlings under SS conditions. Accordingly, we suggest that applying optimal ratios of NH4+ and NO3- (25/75 and 50:50) can improve the resistance of soybean seedlings grown in saline conditions.
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Affiliation(s)
- Javaria Noor
- Department of Botany, Islamia College Peshawar, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Izhar Ahmad
- Department of Botany, Islamia College Peshawar, Peshawar, Khyber Pakhtunkhwa, Pakistan.
| | - Abd Ullah
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, People's Republic of China
| | - Babar Iqbal
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China.
| | - Shazma Anwar
- Department of Agronomy, Faculty of Crop Production Sciences, The University of Agriculture, Peshawar, 25000, Pakistan
| | - Arshad Jalal
- School of Engineering, Department of Plant Health, Rural Engineering and Soils, São Paulo State University - UNESP-FEIS, Ilha Solteira, São Paulo, 15385-000, Brazil
| | - Mohammad K Okla
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Ibrahim A Alaraidh
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Hamada Abdelgawad
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, 2020, Belgium
| | - Shah Fahad
- Department of Agronomy, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, 23200, Pakistan.
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20
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Wang Y, Liu W, Li W, Wang C, Dai H, Xu R, Zhang Y, Zhang L. Integrative analysis of metabolome and transcriptome reveals regulatory mechanisms of flavonoid biosynthesis in soybean under salt stress. FRONTIERS IN PLANT SCIENCE 2024; 15:1415867. [PMID: 38957602 PMCID: PMC11217524 DOI: 10.3389/fpls.2024.1415867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 06/03/2024] [Indexed: 07/04/2024]
Abstract
Introduction Salt stress is a major environmental factor that constrains soybean growth, development, and productivity. Flavonoids are key secondary metabolites that play a crucial role in enhancing plant resistance to both biotic and abiotic stress. However, a comprehensive understanding of the regulatory mechanisms underlying flavonoid biosynthesis under salt stress in soybean is lacking. Methods In this study, an integrative analysis of soybean metabolome and transcriptome was conducted using two soybean lines, FQ03 (salt-sensitive, SS) and FQ07 (salt-tolerant, ST). Results A total of 650 significantly changed metabolites were identified in SS and ST after salt stress treatment. Among them, 151 flavonoids were categorized into nine classes, with flavones and flavonols being the predominant flavonoid types in soybean. Heatmap analysis showed higher contents of most flavonoid metabolites in ST than in SS under salt stress, and the total flavonoid content in ST was significantly higher than that in SS. In addition, transcriptome analysis revealed a higher number of differentially expressed genes (DEGs) in ST than in SS under salt stress. KEGG enrichment analysis revealed that DEGs were mainly enriched in pathways related to phenylpropanoid biosynthesis, isoflavonoid biosynthesis, flavonoid biosynthesis, as well as flavone and flavonol biosynthesis. Notably, 55 DEGs that were mapped to the flavonoid biosynthetic pathway were identified, with most showing higher expression levels in ST than in SS. Weighted gene correlation network analysis identified eight structural genes and six transcription factor genes as key regulators of flavonoid biosynthesis within the blue module. Furthermore, qRT-PCR results confirmed the accuracy of the transcriptomic data and reliability of the identified candidate genes. Discussion This study provides insights into the regulatory mechanisms underlying salt stress responses in soybean and highlights hub genes as potential targets for developing salt-tolerant soybean varieties.
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Affiliation(s)
- Yubin Wang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Shandong Engineering Laboratory of Featured Crops, Jinan, Shandong, China
| | - Wei Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Shandong Engineering Laboratory of Featured Crops, Jinan, Shandong, China
| | - Wei Li
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Shandong Engineering Laboratory of Featured Crops, Jinan, Shandong, China
| | - Caijie Wang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Shandong Engineering Laboratory of Featured Crops, Jinan, Shandong, China
| | - Haiying Dai
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Shandong Engineering Laboratory of Featured Crops, Jinan, Shandong, China
| | - Ran Xu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Shandong Engineering Laboratory of Featured Crops, Jinan, Shandong, China
| | - Yanwei Zhang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Shandong Engineering Laboratory of Featured Crops, Jinan, Shandong, China
| | - Lifeng Zhang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Shandong Engineering Laboratory of Featured Crops, Jinan, Shandong, China
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Li Q, Wang J, Liu Q, Zhang J, Zhu X, Hua Y, Zhou T, Yan S. Revealing critical mechanisms in determining sorghum resistance to drought and salt using mRNA, small RNA and degradome sequencing. BMC PLANT BIOLOGY 2024; 24:547. [PMID: 38872092 DOI: 10.1186/s12870-024-05230-1] [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: 04/05/2024] [Accepted: 05/31/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND Plant growth and development are severely threatened by drought and salt stresses. Compared with structural genes, transcription factors (TFs) play more pivotal roles in plant growth and stress adaptation. However, the underlying mechanisms of sorghum adapting to drought and salt are insufficient, and systematic analysis of TFs in response to the above stresses is lacking. RESULTS In this study, TFs were identified in sorghum and model plants (Arabidopsis thaliana and rice), and gene number and conserved domain were compared between sorghum and model plants. According to syntenic analysis, the expansion of sorghum and rice TFs may be due to whole-genome duplications. Between sorghum and model plants TFs, specific conserved domains were identified and they may be related to functional diversification of TFs. Forty-five key genes in sorghum, including four TFs, were likely responsible for drought adaption based on differently expression analysis. MiR5072 and its target gene (Sobic.001G449600) may refer to the determination of sorghum drought resistance according to small RNA and degradome analysis. Six genes were associated with drought adaptation of sorghum based on weighted gene co-expression network analysis (WGCNA). Similarly, the core genes in response to salt were also characterized using the above methods. Finally, 15 candidate genes, particularly two TFs (Sobic.004G300300, HD-ZIP; Sobic.003G244100, bZIP), involved in combined drought and salt resistance of sorghum were identified. CONCLUSIONS In summary, the findings in this study help clarify the molecular mechanisms of sorghum responding to drought and salt. We identified candidate genes and provide important genetic resource for potential development of drought-tolerant and salt-tolerant sorghum plants.
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Affiliation(s)
- Qiong Li
- Department of Brewing Engineering, Moutai Institute, Renhuai, 564507, Guizhou, China
| | - Jibin Wang
- Department of Resources and Environment, Moutai Institute, Renhuai, 564507, Guizhou, China
| | - Qian Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Junhan Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Xinlei Zhu
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Yinpeng Hua
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Ting Zhou
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Songxian Yan
- Department of Resources and Environment, Moutai Institute, Renhuai, 564507, Guizhou, China.
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22
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Dong X, Stokes MF, Hendry AP, Larsen LG, Dolby GA. Geo-evolutionary feedbacks: integrating rapid evolution and landscape change. Trends Ecol Evol 2024:S0169-5347(24)00119-8. [PMID: 38862356 DOI: 10.1016/j.tree.2024.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 06/13/2024]
Abstract
We develop a conceptual framework for geo-evolutionary feedbacks which describes the mutual interplay between landscape change and the evolution of traits of organisms residing on the landscape, with an emphasis on contemporary timeframes. Geo-evolutionary feedbacks can be realized via the direct evolution of geomorphic engineering traits or can be mediated by the evolution of trait variation that affects the population size and distribution of the specific geomorphic engineering organisms involved. Organisms that modify their local environments provide the basis for patch-scale geo-evolutionary feedbacks, whereas spatial self-organization provides a mechanism for geo-evolutionary feedbacks at the landscape scale. Understanding these likely prevalent geo-evolutionary feedbacks, that occur at timescales similar to anthropogenic climate change, will be essential to better predict landscape adaptive capacity and change.
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Affiliation(s)
- Xiaoli Dong
- Department of Environmental Science and Policy, University of California, Davis, CA, USA.
| | - Maya F Stokes
- Department of Earth, Ocean, and Atmospheric Science, Florida State University, Tallahassee, FL, USA
| | - Andrew P Hendry
- Department of Biology, McGill University, Montreal, QC, Canada
| | - Laurel G Larsen
- Department of Geography and Civil and Environmental Engineering, University of California, Berkeley, CA, USA
| | - Greer A Dolby
- Department of Biology, University of Alabama, Birmingham, AL, USA
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23
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Xu S, Zhao R, Sun J, Sun Y, Xu G, Wang F. Microplastics change soil properties, plant performance, and bacterial communities in salt-affected soils. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134333. [PMID: 38643581 DOI: 10.1016/j.jhazmat.2024.134333] [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: 02/23/2024] [Revised: 04/11/2024] [Accepted: 04/16/2024] [Indexed: 04/23/2024]
Abstract
Microplastics (MPs) are emerging contaminants found globally. However, their effects on soil-plant systems in salt-affected habitats remain unknown. Here, we examined the effects of polyethylene (PE) and polylactic acid (PLA) on soil properties, maize performance, and bacterial communities in soils with different salinity levels. Overall, MPs decreased soil electrical conductivity and increased NH4+-N and NO3--N contents. Adding NaCl alone had promoting and inhibitive effects on plant growth in a concentration-dependent manner. Overall, the addition of 0.2% PLA increased shoot biomass, while 2% PLA decreased it. Salinity increased Na content and decreased K/Na ratio in plant tissues (particularly roots), which were further modified by MPs. NaCl and MPs singly and jointly regulated the expression of functional genes related to salt tolerance in leaves, including ZMSOS1, ZMHKT1, and ZMHAK1. Exposure to NaCl alone had a slight effect on soil bacterial α-diversity, but in most cases, MPs increased ACE, Chao1, and Shannon indexes. Both MPs and NaCl altered bacterial community composition, although the specific effects varied depending on the type and concentration of MPs and the salinity level. Overall, PLA had more pronounced effects on soil-plant systems compared to PE. These findings bridge knowledge gaps in the risks of MPs in salt-affected habitats.
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Affiliation(s)
- Shuang Xu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, PR China
| | - Rong Zhao
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, PR China
| | - Jiao Sun
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, PR China; Shandong Vocational College of Science and Technology, Weifang, Shandong 261000, PR China
| | - Yuhuan Sun
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, PR China
| | - Guangjian Xu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, PR China
| | - Fayuan Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, PR China.
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Yang YB, Yang C, Zheng JR, Xu LZ, Yao N. Chloride salt enhances plant resistance to biotic stresses. FRONTIERS IN PLANT SCIENCE 2024; 15:1385164. [PMID: 38895612 PMCID: PMC11183330 DOI: 10.3389/fpls.2024.1385164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 05/15/2024] [Indexed: 06/21/2024]
Abstract
Biotic stresses caused by bacterial and fungal pathogens damage crops; identifying treatments that enhance disease resistance provides important information for understanding plant defenses and sustainable agriculture. Salt stress affects crop yields worldwide; however, studies have focused on the toxic sodium ion, leaving the effects of the chloride ion unclear. In this study, we found that irrigation with a combination of chloride salts (MgCl2, CaCl2, and KCl) suppressed the cell death phenotype of the ceramide kinase mutant acd5. Chloride salt pre-irrigation also significantly limited the cell death caused by Pseudomonas syringae pv maculicola infection and inhibited the multiplication of this bacterial pathogen in a mechanism partially dependent on the salicylic acid pathway. Moreover, chloride salt pre-irrigation improved plant defenses against the fungal pathogen challenge, confining the lesion area caused by Botrytis cinerea infection. Furthermore, the growth of herbivorous larvae of Spodoptera exigua was retarded by feeding on chloride salt irrigated plants. Thus, our data suggest that treatment with Cl- increases broad spectrum resistance to biotic challenges.
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Affiliation(s)
- Yu-Bing Yang
- School of Life Sciences, Jiaying University, Meizhou, Guangdong, China
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Chang Yang
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jia-Rui Zheng
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Liang-Zheng Xu
- School of Life Sciences, Jiaying University, Meizhou, Guangdong, China
| | - Nan Yao
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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25
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Gkotzamani A, Ipsilantis I, Menexes G, Katsiotis A, Mattas K, Koukounaras A. The Impact of Salinity in the Irrigation of a Wild Underutilized Leafy Vegetable, Sonchus oleraceus L. PLANTS (BASEL, SWITZERLAND) 2024; 13:1552. [PMID: 38891360 PMCID: PMC11174866 DOI: 10.3390/plants13111552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/30/2024] [Accepted: 06/01/2024] [Indexed: 06/21/2024]
Abstract
Introducing non- or under-utilized crops to cultivation generates benefits such as biodiversity enrichment, supporting mitigation actions towards climate change-induced effects. The salinization of soil and water supplies is progressively disrupting natural habitats and food production, especially in regions such as the Mediterranean. Sonchus oleraceus L. is a Mediterranean wild leafy green with nutritional and medicinal properties. This study's purpose was to determine whether salinity affects the growth, quality, and nutrient composition of Sonchus oleraceus L. In an unheated plastic greenhouse, seedlings were transplanted in pots filled with perlite and irrigated with a nutrient solution with no NaCl added (the control, C) or with the addition of 40, 60, 80, and 100 mM of NaCl (treatments S4, S6, S8, and S10, respectively). The leaf and root growth, leaf quality, and the nutrient composition of leaves and roots were determined. Regarding the results, growth was mainly affected at high salinity levels (S8 and S10), with no observed effects of salinity on the determined quality parameters. The nutrient composition was variably affected by salinity in leaves but not in roots (except in the case of Na and the K/Na ratio). Sonchus oleraceus L. showed a general relative tolerance in moderate salinity levels (40 and 60 mM of NaCl), suggesting potential commercial exploitation of the species in areas where the quality of irrigation water is low. However, the health effects of consuming this species grown under salinity stress need to be studied in future research.
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Affiliation(s)
- Anna Gkotzamani
- Laboratory of Vegetable Crops, School of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Ioannis Ipsilantis
- Soil Science Laboratory, School of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - George Menexes
- Laboratory of Agronomy, School of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Andreas Katsiotis
- Department of Agricultural Sciences, Biotechnology and Food Science, Faculty of Geotechnical Sciences and Environmental Management, Cyprus University of Technology, 50329 Limassol, Cyprus;
| | - Konstadinos Mattas
- Department of Agricultural Economics, School of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Athanasios Koukounaras
- Laboratory of Vegetable Crops, School of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
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Aggarwal G, Edhigalla P, Walia P, Jindal S, Sandal SS. A method for screening salt stress tolerance in Indian mustard (Brassica juncea) (L.) Czern & Coss at seedling stage. Sci Rep 2024; 14:12705. [PMID: 38831025 PMCID: PMC11148084 DOI: 10.1038/s41598-024-63693-6] [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] [Accepted: 05/31/2024] [Indexed: 06/05/2024] Open
Abstract
Fifty-nine diverse Brassica juncea (Indian mustard) genotypes were used to find an effective screening method to identify salt tolerance at the germination and seedling stages. Salinity stress limits crop productivity and is difficult to simulate on farms, hindering parental selection for hybridization programmes and the development of tolerant cultivars. To estimate an optimum salt concentration for screening, seeds of 15 genotypes were selected randomly and grown in vitro at 0 mM/L, 75 mM/L, 150 mM/L, 225 mM/L, and 300 mM/L concentrations of NaCl in 2 replications in a complete randomized design. Various morphological parameters, viz., length of seedling, root and shoot length, fresh weight, and dry weight, were observed to determine a single concentration using the Salt Injury Index. Then, this optimum concentration (225 mM/L) was used to assess the salt tolerance of all the 59 genotypes in 4 replications while observing the same morphological parameters. With the help of Mean Membership Function Value evaluation criteria, the genotypes were categorized into 5 grades: 4 highly salt-tolerant (HST), 6 salt-tolerant (ST), 19 moderately salt-tolerant (MST), 21 salt-sensitive (SS), and 9 highly salt-sensitive (HSS). Seedling fresh weight (SFW) at 225 mM/L was found to be an ideal trait, which demonstrates the extent to which B. juncea genotypes respond to saline conditions. This is the first report that establishes a highly efficient and reliable method for evaluating the salinity tolerance of Indian mustard at the seedling stage and will facilitate breeders in the development of salt-tolerant cultivars.
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Affiliation(s)
- Garima Aggarwal
- Department of Genetics and Plant Breeding, School of Agriculture, Lovely Professional University, Phagwara, Punjab, India
| | - Premnath Edhigalla
- Department of Genetics and Plant Breeding, School of Agriculture, Lovely Professional University, Phagwara, Punjab, India
| | - Puneet Walia
- Department of Genetics and Plant Breeding, School of Agriculture, Lovely Professional University, Phagwara, Punjab, India.
| | - Suruchi Jindal
- Department of Molecular Biology and Genetic Engineering, School of Bioengineering & Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Sanjeet Singh Sandal
- Department of Genetics and Plant Breeding, School of Agriculture, Lovely Professional University, Phagwara, Punjab, India
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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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Duan S, Al-Huqail AA, Alsudays IM, Younas M, Aslam A, Shahzad AN, Qayyum MF, Rizwan M, Alhaj Hamoud Y, Shaghaleh H, Hong Yong JW. Effects of biochar types on seed germination, growth, chlorophyll contents, grain yield, sodium, and potassium uptake by wheat (Triticum aestivum L.) under salt stress. BMC PLANT BIOLOGY 2024; 24:487. [PMID: 38824521 PMCID: PMC11143699 DOI: 10.1186/s12870-024-05188-0] [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: 03/30/2024] [Accepted: 05/23/2024] [Indexed: 06/03/2024]
Abstract
Soil salinity is a significant challenge in agriculture, particularly in arid and semi-arid regions such as Pakistan, leading to soil degradation and reduced crop yields. The present study assessed the impact of different salinity levels (0, 25, and 50 mmol NaCl) and biochar treatments (control, wheat-straw biochar, rice-husk biochar, and sawdust biochar applied @ 1% w/w) on the germination and growth performance of wheat. Two experiments: a germination study and a pot experiment (grown up to maturity), were performed. The results showed that NaCl-stress negatively impacted the germination parameters, grain, and straw yield, and agronomic and soil parameters. Biochar treatments restored these parameters compared to control (no biochar), but the effects were inconsistent across NaCl levels. Among the different biochars, wheat-straw biochar performed better than rice-husk and sawdust-derived biochar regarding germination and agronomic parameters. Biochar application notably increased soil pHs and electrical conductivity (ECe). Imposing NaCl stress reduced K concentrations in the wheat shoot and grains with concomitant higher Na concentrations in both parts. Parameters like foliar chlorophyll content (a, b, and total), stomatal and sub-stomatal conductance, and transpiration rate were also positively influenced by biochar addition. The study confirmed that biochar, particularly wheat-straw biochar, effectively mitigated the adverse effects of soil salinity, enhancing both soil quality and wheat growth. The study highlighted that biochar application can minimize the negative effects of salinity stress on wheat. Specifically, the types and dosages of biochar have to be optimized for different salinity levels under field conditions.
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Affiliation(s)
- Sumei Duan
- College of Agriculture, Anhui Science and Technology University, Chuzhou City, 233100, Anhui, China
| | - Arwa Abdulkreem Al-Huqail
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O.Box 84428, Riyadh, 11671, Saudi Arabia
| | | | - Mobeen Younas
- Department of Soil Science, Faculty of Agricultural Sciences & Technology, Bahauddin Zakariya University Multan, Multan, 60800, Pakistan
| | - Alishba Aslam
- Department of Soil Science, Faculty of Agricultural Sciences & Technology, Bahauddin Zakariya University Multan, Multan, 60800, Pakistan
| | - Ahmad Naeem Shahzad
- Institute of Agronomy, Faculty of Agricultural Sciences & Technology, Bahauddin Zakariya University Multan, Multan, 60800, Pakistan
| | - Muhammad Farooq Qayyum
- Department of Soil Science, Faculty of Agricultural Sciences & Technology, Bahauddin Zakariya University Multan, Multan, 60800, Pakistan.
| | - Muhammad Rizwan
- Department of Environmental Sciences, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Yousef Alhaj Hamoud
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Hiba Shaghaleh
- College of Environment, Hohai University, Nanjing, 210098, China
| | - Jean Wan Hong Yong
- Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Alnarp, 23456, Sweden.
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Wang M, Cheng J, Wu J, Chen J, Liu D, Wang C, Ma S, Guo W, Li G, Di D, Zhang Y, Han D, Kronzucker HJ, Xia G, Shi W. Variation in TaSPL6-D confers salinity tolerance in bread wheat by activating TaHKT1;5-D while preserving yield-related traits. Nat Genet 2024; 56:1257-1269. [PMID: 38802564 DOI: 10.1038/s41588-024-01762-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/19/2024] [Indexed: 05/29/2024]
Abstract
Na+ exclusion from above-ground tissues via the Na+-selective transporter HKT1;5 is a major salt-tolerance mechanism in crops. Using the expression genome-wide association study and yeast-one-hybrid screening, we identified TaSPL6-D, a transcriptional suppressor of TaHKT1;5-D in bread wheat. SPL6 also targeted HKT1;5 in rice and Brachypodium. A 47-bp insertion in the first exon of TaSPL6-D resulted in a truncated peptide, TaSPL6-DIn, disrupting TaHKT1;5-D repression exhibited by TaSPL6-DDel. Overexpressing TaSPL6-DDel, but not TaSPL6-DIn, led to inhibited TaHKT1;5-D expression and increased salt sensitivity. Knockout of TaSPL6-DDel in two wheat genotypes enhanced salinity tolerance, which was attenuated by a further TaHKT1;5-D knockdown. Spike development was preserved in Taspl6-dd mutants but not in Taspl6-aabbdd mutants. TaSPL6-DIn was mainly present in landraces, and molecular-assisted introduction of TaSPL6-DIn from a landrace into a leading wheat cultivar successfully improved yield on saline soils. The SPL6-HKT1;5 module offers a target for the molecular breeding of salt-tolerant crops.
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Affiliation(s)
- Meng Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, P. R. China.
- University of Chinese Academy of Sciences, Beijing, P. R. China.
| | - Jie Cheng
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, P. R. China
- State Key Laboratory of Crop Stress Resistance and High-Efficiency Production, College of Agronomy, Northwest A&F University, Yangling, P. R. China
| | - Jianhui Wu
- State Key Laboratory of Crop Stress Resistance and High-Efficiency Production, College of Agronomy, Northwest A&F University, Yangling, P. R. China
| | - Jiefei Chen
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Dan Liu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, P. R. China
- State Key Laboratory of Crop Stress Resistance and High-Efficiency Production, College of Agronomy, Northwest A&F University, Yangling, P. R. China
| | - Chenyang Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, P. R. China
- State Key Laboratory of Crop Stress Resistance and High-Efficiency Production, College of Agronomy, Northwest A&F University, Yangling, P. R. China
| | - Shengwei Ma
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, P. R. China
- Hainan Yazhou Bay Seed Laboratory, Sanya, P. R. China
| | - Weiwei Guo
- Shandong Engineering Research Center of Germplasm Innovation and Utilization of Salt-Tolerant Crops, College of Agronomy, Qingdao Agricultural University, Qingdao, P. R. China
| | - Guangjie Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, P. R. China
| | - Dongwei Di
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, P. R. China
| | - Yumei Zhang
- Shandong Engineering Research Center of Germplasm Innovation and Utilization of Salt-Tolerant Crops, College of Agronomy, Qingdao Agricultural University, Qingdao, P. R. China
| | - Dejun Han
- State Key Laboratory of Crop Stress Resistance and High-Efficiency Production, College of Agronomy, Northwest A&F University, Yangling, P. R. China
| | - Herbert J Kronzucker
- School of BioSciences, Faculty of Science, The University of Melbourne, Parkville, Victoria, Australia
| | - Guangmin Xia
- The Key Laboratory of Plant Development and Environment Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, P. R. China
| | - Weiming Shi
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, P. R. China
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Su TH, Shen Y, Chiang YY, Liu YT, You HM, Lin HC, Kung KN, Huang YM, Lai CM. Species selection as a key factor in the afforestation of coastal salt-affected lands: Insights from pot and field experiments. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 360:121126. [PMID: 38761629 DOI: 10.1016/j.jenvman.2024.121126] [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: 02/21/2024] [Revised: 05/03/2024] [Accepted: 05/08/2024] [Indexed: 05/20/2024]
Abstract
Soil salinization is a significant global issue that leads to land degradation and loss of ecological function. In coastal areas, salinization hampers vegetation growth, and forestation efforts can accelerate the recovery of ecological functions and enhance resilience to extreme climates. However, the salinity tolerance of tree species varies due to complex biological factors, and results between lab/greenhouse and field studies are often inconsistent. Moreover, in salinized areas affected by extreme climatic and human impacts, afforestation with indigenous species may face adaptability challenges. Therefore, it is crucial to select appropriate cross-species salinity tolerance indicators that have been validated in the field to enhance the success of afforestation and reforestation efforts. This study focuses on five native coastal tree species in Taiwan, conducting afforestation experiments on salt-affected soils mixed with construction and demolition waste. It integrates short-term controlled experiments with potted seedlings and long-term field observations to establish growth performance and physiological and biochemical parameters indicative of salinity tolerance. Results showed that Heritiera littoralis Dryand. exhibited the highest salinity tolerance, accumulating significant leaf proline under increased salinity. Conversely, Melia azedarach Linn. had the lowest tolerance, evidenced by complete defoliation and reduced biomass under salt stress. Generally, the field growth performance of these species aligns with the results of short-term pot experiments. Leaf malondialdehyde content from pot experiments proved to be a reliable cross-species salinity tolerance indicator, correlating negatively with field relative height growth and survival rates. Additionally, parameters related to the photosynthetic system or water status, measured using portable devices, also moderately indicated field survival, aiding in identifying potential salt-tolerant tree species. This study underscores the pivotal role of species selection in afforestation success, demonstrating that small-scale, short-term salinity control experiments coupled with appropriate assessment tools can effectively identify species suitable for highly saline and degraded environments. This approach not only increases the success of afforestation but also conserves resources needed for field replanting and maintenance, supporting sustainable development goals.
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Affiliation(s)
- Tzu-Hao Su
- Silviculture Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan
| | - Yang Shen
- Department of Forestry, National Chung Hsing University, Taichung City, 402202, Taiwan
| | - Yao-Yu Chiang
- Silviculture Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan
| | - Yu-Ting Liu
- Department of Forestry, National Chung Hsing University, Taichung City, 402202, Taiwan
| | - Han-Ming You
- Silviculture Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan
| | - Hung-Chih Lin
- Silviculture Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan
| | - Kuan-Ning Kung
- Chiayi Research Center, Taiwan Forestry Research Institute, Chiayi City, 600054, Taiwan
| | - Yao-Moan Huang
- Forest Ecology Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan
| | - Chih-Ming Lai
- Silviculture Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan.
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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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Chen S, Geng X, Lou J, Huang D, Mao H, Lin X. Overexpression of a plasmalemma Na +/H + antiporter from the halophyte Nitraria sibirica enhances the salt tolerance of transgenic poplar. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 343:112061. [PMID: 38461863 DOI: 10.1016/j.plantsci.2024.112061] [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: 10/27/2023] [Revised: 01/31/2024] [Accepted: 03/07/2024] [Indexed: 03/12/2024]
Abstract
The plasmalemma Na+/H+ antiporter Salt Overly Sensitive 1 (SOS1) is responsible for the efflux of Na+ from the cytoplasm, an important determinant of salt resistance in plants. In this study, an ortholog of SOS1, referred to as NsSOS1, was cloned from Nitraria sibirica, a typical halophyte that grows in deserts and saline-alkaline land, and its expression and function in regulating the salt tolerance of forest trees were evaluated. The expression level of NsSOS1 was higher in leaves than in roots and stems of N. sibirica, and its expression was upregulated under salt stress. Histochemical staining showed that β-glucuronidase (GUS) driven by the NsSOS1 promoter was strongly induced by abiotic stresses and phytohormones including salt, drought, low temperature, gibberellin, and methyl jasmonate, suggesting that NsSOS1 is involved in the regulation of multiple signaling pathways. Transgenic 84 K poplar (Populus alba × P. glandulosa) overexpressing NsSOS1 showed improvements in survival rate, root biomass, plant height, relative water levels, chlorophyll and proline levels, and antioxidant enzyme activities versus non-transgenic poplar (NT) under salt stress. Transgenic poplars accumulated less Na+ and more K+ in roots, stems, and leaves, which had a lower Na+/K+ ratio compared to NT under salt stress. These results indicate that NsSOS1-mediated Na+ efflux confers salt tolerance to transgenic poplars, which show more efficient photosynthesis, better scavenging of reactive oxygen species, and improved osmotic adjustment under salt stress. Transcriptome analysis of transgenic poplars confirmed that NsSOS1 not only mediates Na+ efflux but is also involved in the regulation of multiple metabolic pathways. The results provide insight into the regulatory mechanisms of NsSOS1 and suggest that it could be used to improve the salt tolerance of forest trees.
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Affiliation(s)
- Shouye Chen
- Key Laboratory of Herbage and Endemic Crop Biology of Ministry Education, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Xin Geng
- Key Laboratory of Herbage and Endemic Crop Biology of Ministry Education, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Jing Lou
- Key Laboratory of Herbage and Endemic Crop Biology of Ministry Education, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Duoman Huang
- Key Laboratory of Herbage and Endemic Crop Biology of Ministry Education, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Huiping Mao
- Key Laboratory of Herbage and Endemic Crop Biology of Ministry Education, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China; State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China.
| | - Xiaofei Lin
- Key Laboratory of Herbage and Endemic Crop Biology of Ministry Education, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China; State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China.
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Asins MJ, Carbonell EA. Meta-QTL and Candidate Gene Analyses of Agronomic Salt Tolerance and Related Traits in an RIL Population Derived from Solanum pimpinellifolium. Int J Mol Sci 2024; 25:6055. [PMID: 38892245 PMCID: PMC11172916 DOI: 10.3390/ijms25116055] [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: 04/22/2024] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
Breeding salt-tolerant crops is necessary to reduce food insecurity. Prebreeding populations are fundamental for uncovering tolerance alleles from wild germplasm. To obtain a physiological interpretation of the agronomic salt tolerance and better criteria to identify candidate genes, quantitative trait loci (QTLs) governing productivity-related traits in a population of recombinant inbred lines (RIL) derived from S. pimpinellifolium were reanalyzed using an SNP-saturated linkage map and clustered using QTL meta-analysis to synthesize QTL information. A total of 60 out of 85 QTLs were grouped into 12 productivity MQTLs. Ten of them were found to overlap with other tomato yield QTLs that were found using various mapping populations and cultivation conditions. The MQTL compositions showed that fruit yield was genetically associated with leaf water content. Additionally, leaf Cl- and K+ contents were related to tomato productivity under control and salinity conditions, respectively. More than one functional candidate was frequently found, explaining most productivity MQTLs, indicating that the co-regulation of more than one gene within those MQTLs might explain the clustering of agronomic and physiological QTLs. Moreover, MQTL1.2, MQTL3 and MQTL6 point to the root as the main organ involved in increasing productivity under salinity through the wild allele, suggesting that adequate rootstock/scion combinations could have a clear agronomic advantage under salinity.
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Affiliation(s)
- Maria J. Asins
- Instituto Valenciano de Investigaciones Agrarias (IVIA), 46113 Moncada, Valencia, Spain
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Gul B, Hameed A, Ahmed MZ, Hussain T, Rasool SG, Nielsen BL. Thriving under Salinity: Growth, Ecophysiology and Proteomic Insights into the Tolerance Mechanisms of Obligate Halophyte Suaeda fruticosa. PLANTS (BASEL, SWITZERLAND) 2024; 13:1529. [PMID: 38891337 PMCID: PMC11174735 DOI: 10.3390/plants13111529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 05/27/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024]
Abstract
Studies on obligate halophytes combining eco-physiological techniques and proteomic analysis are crucial for understanding salinity tolerance mechanisms but are limited. We thus examined growth, water relations, ion homeostasis, photosynthesis, oxidative stress mitigation and proteomic responses of an obligate halophyte Suaeda fruticosa to increasing salinity under semi-hydroponic culture. Most biomass parameters increased under moderate (300 mmol L-1 of NaCl) salinity, while high (900 mmol L-1 of NaCl) salinity caused some reduction in biomass parameters. Under moderate salinity, plants showed effective osmotic adjustment with concomitant accumulation of Na+ in both roots and leaves. Accumulation of Na+ did not accompany nutrient deficiency, damage to photosynthetic machinery and oxidative damage in plants treated with 300 mmol L-1 of NaCl. Under high salinity, plants showed further decline in sap osmotic potential with higher Na+ accumulation that did not coincide with a decline in relative water content, Fv/Fm, and oxidative damage markers (H2O2 and MDA). There were 22, 54 and 7 proteins in optimal salinity and 29, 46 and 8 proteins in high salinity treatment that were up-regulated, down-regulated or exhibited no change, respectively, as compared to control plants. These data indicate that biomass reduction in S. fruticosa at high salinity might result primarily from increased energetic cost rather than ionic toxicity.
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Affiliation(s)
- Bilquees Gul
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi 75270, Pakistan; (A.H.); (M.Z.A.); (T.H.); (S.G.R.)
| | - Abdul Hameed
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi 75270, Pakistan; (A.H.); (M.Z.A.); (T.H.); (S.G.R.)
| | - Muhammad Zaheer Ahmed
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi 75270, Pakistan; (A.H.); (M.Z.A.); (T.H.); (S.G.R.)
| | - Tabassum Hussain
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi 75270, Pakistan; (A.H.); (M.Z.A.); (T.H.); (S.G.R.)
| | - Sarwat Ghulam Rasool
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi 75270, Pakistan; (A.H.); (M.Z.A.); (T.H.); (S.G.R.)
| | - Brent L. Nielsen
- Department of Microbiology & Molecular Biology, Brigham Young University, Provo, UT 84602, USA;
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Yang Y, Cheng Y, Lu Z, Ye H, Du G, Li Z. Comparative proteomic and metabolomic analyses reveal stress responses of hemp to salinity. PLANT CELL REPORTS 2024; 43:154. [PMID: 38809335 DOI: 10.1007/s00299-024-03237-4] [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: 02/21/2024] [Accepted: 05/17/2024] [Indexed: 05/30/2024]
Abstract
KEY MESSAGE Integrated omics analyses outline the cellular and metabolic events of hemp plants in response to salt stress and highlight several photosynthesis and energy metabolism related pathways as key regulatory points. Soil salinity affects many physiological processes of plants and leads to crop yield losses worldwide. For hemp, a crop that is valued for multiple aspects, such as its medical compounds, fibre, and seed, a comprehensive understanding of its salt stress responses is a prerequisite for resistance breeding and tailoring its agronomic performance to suit certain industrial applications. Here, we first observed the phenotype of salt-stressed hemp plants and found that under NaCl treatment, hemp plants displayed pronounced growth defects, as indicated by the significantly reduced average height, number of leaves, and chlorophyll content. Next, we conducted comparative proteomics and metabolomics to dissect the complex salt-stress response mechanisms. A total of 314 proteins and 649 metabolites were identified to be differentially behaving upon NaCl treatment. Functional classification and enrichment analysis unravelled that many differential proteins were proteases associated with photosynthesis. Through metabolic pathway enrichment, several energy-related pathways were found to be altered, such as the biosynthesis and degradation of branched-chain amino acids, and our network analysis showed that many ribosomal proteins were involved in these metabolic adaptations. Taken together, for hemp plants, influences on chloroplast function probably represent a major toxic effect of salinity, and modulating several energy-producing pathways possibly through translational regulation is presumably a key protective mechanism against the negative impacts. Our data and analyses provide insights into our understanding of hemp's stress biology and may lay a foundation for future functional genomics studies.
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Affiliation(s)
- Yang Yang
- School of Agriculture, Yunnan University, Kunming, 650091, China
| | - Yu Cheng
- School of Agriculture, Yunnan University, Kunming, 650091, China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Kunming, 650091, China
| | - Zhenhua Lu
- School of Agriculture, Yunnan University, Kunming, 650091, China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Kunming, 650091, China
| | - Hailong Ye
- School of Agriculture, Yunnan University, Kunming, 650091, China
| | - Guanghui Du
- School of Agriculture, Yunnan University, Kunming, 650091, China
| | - Zheng Li
- School of Agriculture, Yunnan University, Kunming, 650091, China.
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Kunming, 650091, China.
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Wang Y, Ye H, Ren F, Ren X, Zhu Y, Xiao Y, He J, Wang B. Comparative Transcriptome Analysis Revealed Candidate Gene Modules Involved in Salt Stress Response in Sweet Basil and Overexpression of ObWRKY16 and ObPAL2 Enhanced Salt Tolerance of Transgenic Arabidopsis. PLANTS (BASEL, SWITZERLAND) 2024; 13:1487. [PMID: 38891295 PMCID: PMC11174604 DOI: 10.3390/plants13111487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/17/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024]
Abstract
Sweet basil (Ocimum basilicum L.) is an important aromatic plant with high edibility and economic value, widely distributed in many regions of the tropics including the south of China. In recent years, environmental problems, especially soil salinization, have seriously restricted the planting and spread of sweet basil. However, the molecular mechanism of the salt stress response in sweet basil is still largely unknown. In this study, seed germination, seedling growth, and chlorophyll synthesis in sweet basil were inhibited under salt stress conditions. Through comparative transcriptome analysis, the gene modules involved in the metabolic processes, oxidative response, phytohormone signaling, cytoskeleton, and photosynthesis were screened out. In addition, the landscape of transcription factors during salt treatment in sweet basil was displayed as well. Moreover, the overexpression of the WRKY transcription factor-encoding gene, ObWRKY16, and the phenylalanine ammonia-lyase-encoding gene, ObPAL2, enhanced the seed germination, seedling growth, and survival rate, respectively, of transgenic Arabidopsis, suggesting that they might be important candidates for the creation of salt-tolerant sweet basil cultivars. Our data enrich the study on salt responses in sweet basil and provide essential gene resources for genetic improvements in sweet basil in the future.
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Affiliation(s)
- Yukun Wang
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, China; (Y.W.); (Y.Z.); (Y.X.)
- College of Biology and Agriculture, Shaoguan University, Shaoguan 512005, China; (H.Y.); (F.R.); (X.R.)
- Engineering and Technology Research Center of Shaoguan Horticulture in Shaoguan University, Shaoguan 512005, China
| | - Hong Ye
- College of Biology and Agriculture, Shaoguan University, Shaoguan 512005, China; (H.Y.); (F.R.); (X.R.)
- Engineering and Technology Research Center of Shaoguan Horticulture in Shaoguan University, Shaoguan 512005, China
| | - Fei Ren
- College of Biology and Agriculture, Shaoguan University, Shaoguan 512005, China; (H.Y.); (F.R.); (X.R.)
- Engineering and Technology Research Center of Shaoguan Horticulture in Shaoguan University, Shaoguan 512005, China
| | - Xiaoqiang Ren
- College of Biology and Agriculture, Shaoguan University, Shaoguan 512005, China; (H.Y.); (F.R.); (X.R.)
- Engineering and Technology Research Center of Shaoguan Horticulture in Shaoguan University, Shaoguan 512005, China
| | - Yunna Zhu
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, China; (Y.W.); (Y.Z.); (Y.X.)
- College of Biology and Agriculture, Shaoguan University, Shaoguan 512005, China; (H.Y.); (F.R.); (X.R.)
- Engineering and Technology Research Center of Shaoguan Horticulture in Shaoguan University, Shaoguan 512005, China
| | - Yanhui Xiao
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, China; (Y.W.); (Y.Z.); (Y.X.)
- College of Biology and Agriculture, Shaoguan University, Shaoguan 512005, China; (H.Y.); (F.R.); (X.R.)
- Engineering and Technology Research Center of Shaoguan Horticulture in Shaoguan University, Shaoguan 512005, China
| | - Jinming He
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, China; (Y.W.); (Y.Z.); (Y.X.)
- College of Biology and Agriculture, Shaoguan University, Shaoguan 512005, China; (H.Y.); (F.R.); (X.R.)
- Engineering and Technology Research Center of Shaoguan Horticulture in Shaoguan University, Shaoguan 512005, China
| | - Bin Wang
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, China; (Y.W.); (Y.Z.); (Y.X.)
- College of Biology and Agriculture, Shaoguan University, Shaoguan 512005, China; (H.Y.); (F.R.); (X.R.)
- Engineering and Technology Research Center of Shaoguan Horticulture in Shaoguan University, Shaoguan 512005, China
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Wang L, Lin G, Li Y, Qu W, Wang Y, Lin Y, Huang Y, Li J, Qian C, Yang G, Zuo Q. Phenotype, Biomass, Carbon and Nitrogen Assimilation, and Antioxidant Response of Rapeseed under Salt Stress. PLANTS (BASEL, SWITZERLAND) 2024; 13:1488. [PMID: 38891297 PMCID: PMC11175084 DOI: 10.3390/plants13111488] [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: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024]
Abstract
Salt stress is one of the major adverse factors affecting plant growth and crop production. Rapeseed is an important oil crop, providing high-quality edible oil for human consumption. This experiment was conducted to investigate the effects of salt stress on the phenotypic traits and physiological processes of rapeseed. The soil salinity was manipulated by setting three different levels: 0 g NaCl kg-1 soil (referred to as S0), 1.5 g NaCl kg-1 soil (referred to as S1), and 3.0 g NaCl kg-1 soil (referred to as S2). In general, the results indicated that the plant height, leaf area, and root neck diameter decreased with an increase in soil salinity. In addition, the biomass of various organs at all growth stages decreased as soil salinity increased from S0 to S2. The increasing soil salinity improved the distribution of biomass in the root and leaf at the seedling and flowering stages, indicating that rapeseed plants subjected to salt stress during the vegetative stage are capable of adapting their growth pattern to sustain their capacity for nutrient and water uptake, as well as leaf photosynthesis. However, as the soil salinity increased, there was a decrease in the distribution of biomass in the pod and seed at the maturity stage, while an increase was observed in the root and stem, suggesting that salt stress inhibited carbohydrate transport into reproductive organs. Moreover, the C and N accumulation at the flowering and maturity stages exhibited a reduction in direct correlation with the increase in soil salinity. High soil salinity resulted in a reduction in the C/N, indicating that salt stress exerted a greater adverse effect on C assimilation compared to N assimilation, leading to an increase in seed protein content and a decrease in oil content. Furthermore, as soil salinity increased from S0 to S2, the activity of superoxide dismutase (SOD) and catalase (CAT) and the content of soluble protein and sugar increased by 58.39%, 33.38%, 15.57%, and 13.88% at the seedling stage, and 38.69%, 22.85%, 12.04%, and 8.26% at the flowering stage, respectively. In summary, this study revealed that salt stress inhibited C and N assimilation, leading to a suppressed phenotype and biomass accumulation. The imbalanced C and N assimilation under salt stress contributed to the alterations in the seed oil and protein content. Rapeseed had a certain degree of salt tolerance by improving antioxidants and osmolytes.
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Affiliation(s)
- Long Wang
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; (L.W.); (G.L.); (Y.L.); (W.Q.); (Y.W.); (Y.L.); (Y.H.); (J.L.); (C.Q.); (G.Y.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Guobing Lin
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; (L.W.); (G.L.); (Y.L.); (W.Q.); (Y.W.); (Y.L.); (Y.H.); (J.L.); (C.Q.); (G.Y.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Yiyang Li
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; (L.W.); (G.L.); (Y.L.); (W.Q.); (Y.W.); (Y.L.); (Y.H.); (J.L.); (C.Q.); (G.Y.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Wenting Qu
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; (L.W.); (G.L.); (Y.L.); (W.Q.); (Y.W.); (Y.L.); (Y.H.); (J.L.); (C.Q.); (G.Y.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Yan Wang
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; (L.W.); (G.L.); (Y.L.); (W.Q.); (Y.W.); (Y.L.); (Y.H.); (J.L.); (C.Q.); (G.Y.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Yaowei Lin
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; (L.W.); (G.L.); (Y.L.); (W.Q.); (Y.W.); (Y.L.); (Y.H.); (J.L.); (C.Q.); (G.Y.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Yihang Huang
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; (L.W.); (G.L.); (Y.L.); (W.Q.); (Y.W.); (Y.L.); (Y.H.); (J.L.); (C.Q.); (G.Y.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Jing Li
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; (L.W.); (G.L.); (Y.L.); (W.Q.); (Y.W.); (Y.L.); (Y.H.); (J.L.); (C.Q.); (G.Y.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Chen Qian
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; (L.W.); (G.L.); (Y.L.); (W.Q.); (Y.W.); (Y.L.); (Y.H.); (J.L.); (C.Q.); (G.Y.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Guang Yang
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; (L.W.); (G.L.); (Y.L.); (W.Q.); (Y.W.); (Y.L.); (Y.H.); (J.L.); (C.Q.); (G.Y.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Qingsong Zuo
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; (L.W.); (G.L.); (Y.L.); (W.Q.); (Y.W.); (Y.L.); (Y.H.); (J.L.); (C.Q.); (G.Y.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
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Yang C, Fredua-Agyeman R, Hwang SF, Gorim LY, Strelkov SE. Genome-wide association studies of root system architecture traits in a broad collection of Brassica genotypes. FRONTIERS IN PLANT SCIENCE 2024; 15:1389082. [PMID: 38863549 PMCID: PMC11165082 DOI: 10.3389/fpls.2024.1389082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 04/29/2024] [Indexed: 06/13/2024]
Abstract
The root systems of Brassica species are complex. Eight root system architecture (RSA) traits, including total root length, total root surface area, root average diameter, number of tips, total primary root length, total lateral root length, total tertiary root length, and basal link length, were phenotyped across 379 accessions representing six Brassica species (B. napus, B. juncea, B. carinata, B. oleracea, B. nigra, and B. rapa) using a semi-hydroponic system and image analysis software. The results suggest that, among the assessed species, B. napus and B. oleracea had the most intricate and largest root systems, while B. nigra exhibited the smallest roots. The two species B. juncea and B. carinata shared comparable root system complexity and had root systems with larger root diameters. In addition, 313 of the Brassica accessions were genotyped using a 19K Brassica single nucleotide polymorphism (SNP) array. After filtering by TASSEL 5.0, 6,213 SNP markers, comprising 5,103 markers on the A-genome (covering 302,504 kb) and 1,110 markers on the C-genome (covering 452,764 kb), were selected for genome-wide association studies (GWAS). Two general linear models were tested to identify the genomic regions and SNPs associated with the RSA traits. GWAS identified 79 significant SNP markers associated with the eight RSA traits investigated. These markers were distributed across the 18 chromosomes of B. napus, except for chromosome C06. Sixty-five markers were located on the A-genome, and 14 on the C-genome. Furthermore, the major marker-trait associations (MTAs)/quantitative trait loci (QTLs) associated with root traits were located on chromosomes A02, A03, and A06. Brassica accessions with distinct RSA traits were identified, which could hold functional, adaptive, evolutionary, environmental, pathological, and breeding significance.
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Affiliation(s)
| | - Rudolph Fredua-Agyeman
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | | | | | - Stephen E. Strelkov
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
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Hou L, Liu Z, Zhang D, Liu S, Chen Z, Wu Q, Shang Z, Wang J, Wang J. BR regulates wheat root salt tolerance by maintaining ROS homeostasis. PLANTA 2024; 260:5. [PMID: 38777878 DOI: 10.1007/s00425-024-04429-8] [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: 01/02/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024]
Abstract
MAIN CONCLUSION Trace amounts of epibrassinolide (EpiBL) could partially rescue wheat root length inhibition in salt-stressed situation by scavenging ROS, and ectopic expression of TaDWF4 or TaBAK1 enhances root salt tolerance in Arabidopsis by balancing ROS level. Salt stress often leads to ion toxicity and oxidative stress, causing cell structure damage and root development inhibition in plants. While prior research indicated the involvement of exogenous brassinosteroid (BR) in plant responses to salt stress, the precise cytological role and the function of BR in wheat root development under salt stress remain elusive. Our study demonstrates that 100 mM NaCl solution inhibits wheat root development, but 5 nM EpiBL partially rescues root length inhibition by decreasing H2O2 content, oxygen free radical (OFR) content, along with increasing the peroxidase (POD) and catalase (CAT) activities in salt-stressed roots. The qRT-PCR experiment also shows that expression of the ROS-scavenging genes (GPX2 and CAT2) increased in roots after applying BR, especially during salt stress situation. Transcriptional analysis reveals decreased expression of BR synthesis and root meristem development genes under salt stress in wheat roots. Differential expression gene (DEG) enrichment analysis highlights the significant impact of salt stress on various biological processes, particularly "hydrogen peroxide catabolic process" and "response to oxidative stress". Additionally, the BR biosynthesis pathway is enriched under salt stress conditions. Therefore, we investigated the involvement of wheat BR synthesis gene TaDWF4 and BR signaling gene TaBAK1 in salt stress responses in roots. Our results demonstrate that ectopic expression of TaDWF4 or TaBAK1 enhances salt tolerance in Arabidopsis by balancing ROS (Reactive oxygen species) levels in roots.
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Affiliation(s)
- Lijiang Hou
- Key Laboratory of Anyang Wheat Breeding Engineering Research Center, Anyang Institute of Technology, Anyang, 455000, Henan, China
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Zihui Liu
- Department of Biochemistry, Baoding University, Baoding, 071000, Hebei, China
| | - Dongzhi Zhang
- College of Life Sciences and Engineering, Hexi University, Zhangye, Gansu, 734000, China
| | - Shuhan Liu
- College of Agronomy, Xinyang Agriculture and Forestry University, Xinyang, 464000, Henan, China
| | - Zhenzhen Chen
- Xinyang Academy of Agricultural Sciences, Xinyang, 464000, Henan, China
| | - Qiufang Wu
- Key Laboratory of Anyang Wheat Breeding Engineering Research Center, Anyang Institute of Technology, Anyang, 455000, Henan, China
| | - Zengzhen Shang
- Key Laboratory of Anyang Wheat Breeding Engineering Research Center, Anyang Institute of Technology, Anyang, 455000, Henan, China
| | - Jingshun Wang
- Key Laboratory of Anyang Wheat Breeding Engineering Research Center, Anyang Institute of Technology, Anyang, 455000, Henan, China
| | - Junwei Wang
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China.
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Wang F, Miao H, Zhang S, Hu X, Chu Y, Yang W, Wang H, Wang J, Shan S, Chen J. Weighted gene co-expression network analysis reveals hub genes regulating response to salt stress in peanut. BMC PLANT BIOLOGY 2024; 24:425. [PMID: 38769518 PMCID: PMC11103959 DOI: 10.1186/s12870-024-05145-x] [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: 03/26/2024] [Accepted: 05/13/2024] [Indexed: 05/22/2024]
Abstract
Peanut (Arachis hypogaea L.) is an important oilseed crop worldwide. However, soil salinization becomes one of the main limiting factors of peanut production. Therefore, developing salt-tolerant varieties and understanding the molecular mechanisms of salt tolerance is important to protect peanut yield in saline areas. In this study, we selected four peanut varieties with contrasting response to salt challenges with T1 and T2 being tolerance and S1 and S2 being susceptible. High-throughput RNA sequencing resulted in more than 314.63 Gb of clean data from 48 samples. We identified 12,057 new genes, 7,971of which have functional annotations. KEGG pathway enrichment analysis of uniquely expressed genes in salt-tolerant peanut revealed that upregulated genes in the root are involved in the MAPK signaling pathway, fatty acid degradation, glycolysis/gluconeogenesis, and upregulated genes in the shoot were involved in plant hormone signal transduction and the MAPK signaling pathway. Na+ content, K+ content, K+/ Na+, and dry mass were measured in root and shoot tissues, and two gene co-expression networks were constructed based on weighted gene co-expression network analysis (WGCNA) in root and shoot. In this study, four key modules that are highly related to peanut salt tolerance in root and shoot were identified, plant hormone signal transduction, phenylpropanoid biosynthesis, starch and sucrose metabolism, flavonoid biosynthesis, carbon metabolism were identified as the key biological processes and metabolic pathways for improving peanut salt tolerance. The hub genes include genes encoding ion transport (such as HAK8, CNGCs, NHX, NCL1) protein, aquaporin protein, CIPK11 (CBL-interacting serine/threonine-protein kinase 11), LEA5 (late embryogenesis abundant protein), POD3 (peroxidase 3), transcription factor, and MAPKKK3. There were some new salt-tolerant genes identified in peanut, including cytochrome P450, vinorine synthase, sugar transport protein 13, NPF 4.5, IAA14, zinc finger CCCH domain-containing protein 62, beta-amylase, fatty acyl-CoA reductase 3, MLO-like protein 6, G-type lectin S-receptor-like serine/threonine-protein kinase, and kinesin-like protein KIN-7B. The identification of key modules, biological pathways, and hub genes in this study enhances our understanding of the molecular mechanisms underlying salt tolerance in peanuts. This knowledge lays a theoretical foundation for improving and innovating salt-tolerant peanut germplasm.
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Affiliation(s)
- Feifei Wang
- Shandong Peanut Research Institute, Qingdao, 266100, People's Republic of China
| | - Huarong Miao
- Shandong Peanut Research Institute, Qingdao, 266100, People's Republic of China
| | - Shengzhong Zhang
- Shandong Peanut Research Institute, Qingdao, 266100, People's Republic of China
| | - Xiaohui Hu
- Shandong Peanut Research Institute, Qingdao, 266100, People's Republic of China
| | - Ye Chu
- Department of Horticulture, University of Georgia Tifton Campus, Tifton, GA, 31793, USA
| | - Weiqiang Yang
- Shandong Peanut Research Institute, Qingdao, 266100, People's Republic of China
| | - Heng Wang
- Agricultural Technical Service Center, Rizhao, 276700, Shandong, China
| | - Jingshan Wang
- College of Agronomy, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China
| | - Shihua Shan
- Shandong Peanut Research Institute, Qingdao, 266100, People's Republic of China
| | - Jing Chen
- Shandong Peanut Research Institute, Qingdao, 266100, People's Republic of China.
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Salazar OR, Chen K, Melino VJ, Reddy MP, Hřibová E, Čížková J, Beránková D, Arciniegas Vega JP, Cáceres Leal LM, Aranda M, Jaremko L, Jaremko M, Fedoroff NV, Tester M, Schmöckel SM. SOS1 tonoplast neo-localization and the RGG protein SALTY are important in the extreme salinity tolerance of Salicornia bigelovii. Nat Commun 2024; 15:4279. [PMID: 38769297 PMCID: PMC11106269 DOI: 10.1038/s41467-024-48595-5] [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: 05/01/2023] [Accepted: 05/07/2024] [Indexed: 05/22/2024] Open
Abstract
The identification of genes involved in salinity tolerance has primarily focused on model plants and crops. However, plants naturally adapted to highly saline environments offer valuable insights into tolerance to extreme salinity. Salicornia plants grow in coastal salt marshes, stimulated by NaCl. To understand this tolerance, we generated genome sequences of two Salicornia species and analyzed the transcriptomic and proteomic responses of Salicornia bigelovii to NaCl. Subcellular membrane proteomes reveal that SbiSOS1, a homolog of the well-known SALT-OVERLY-SENSITIVE 1 (SOS1) protein, appears to localize to the tonoplast, consistent with subcellular localization assays in tobacco. This neo-localized protein can pump Na+ into the vacuole, preventing toxicity in the cytosol. We further identify 11 proteins of interest, of which SbiSALTY, substantially improves yeast growth on saline media. Structural characterization using NMR identified it as an intrinsically disordered protein, localizing to the endoplasmic reticulum in planta, where it can interact with ribosomes and RNA, stabilizing or protecting them during salt stress.
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Affiliation(s)
- Octavio R Salazar
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
- Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
- Red Sea Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Ke Chen
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Vanessa J Melino
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
- Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Muppala P Reddy
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
- Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Eva Hřibová
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of Plant Structural and Functional Genomics, Šlechtitelů 31, 77900, Olomouc, Czech Republic
| | - Jana Čížková
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of Plant Structural and Functional Genomics, Šlechtitelů 31, 77900, Olomouc, Czech Republic
| | - Denisa Beránková
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of Plant Structural and Functional Genomics, Šlechtitelů 31, 77900, Olomouc, Czech Republic
| | - Juan Pablo Arciniegas Vega
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
- Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Lina María Cáceres Leal
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
- Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Manuel Aranda
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
- Red Sea Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Lukasz Jaremko
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Mariusz Jaremko
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Nina V Fedoroff
- Department of Biology, Penn State University, University Park, PA, 16801, US
| | - Mark Tester
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia.
- Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia.
| | - Sandra M Schmöckel
- Department Physiology of Yield Stability, Institute of Crop Science, University of Hohenheim, Fruwirthstr. 21, 70599, Stuttgart, Germany
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Chen L, Zhou G, Feng B, Wang C, Luo Y, Li F, Shen C, Ma D, Zhang C, Zhang J. Saline-alkali land reclamation boosts topsoil carbon storage by preferentially accumulating plant-derived carbon. Sci Bull (Beijing) 2024:S2095-9273(24)00357-8. [PMID: 38910109 DOI: 10.1016/j.scib.2024.03.063] [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: 10/17/2023] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 06/25/2024]
Abstract
Saline-alkali land is an important cultivated land reserve resource for tackling global climate change and ensuring food security, partly because it can store large amounts of carbon (C). However, it is unclear how saline-alkali land reclamation (converting saline-alkali land into cultivated land) affects soil C storage. We collected 189 adjacent pairs of salt-affected and cultivated soil samples (0-30 cm deep) from the Songnen Plain, eastern coastal area, Hetao Plain, and northwestern arid area in China. Various soil properties, the soil inorganic C (SIC), organic C (SOC), particulate organic C (POC), and mineral-associated organic C (MAOC) densities, and plant- and microbial-derived C accumulation were determined. Saline-alkali land reclamation inconsistently affected the SIC density but significantly (P < 0.001) increased the SOC density. The SOC, POC, and MAOC densities were predicted well by the integrative soil amelioration index. Saline-alkali land reclamation significantly increased plant-derived C accumulation and the plant-derived C to microbial-derived C ratios in all saline-alkali areas, and less microbial transformation of plant-derived C (i.e., less lignin degradation or oxidation) occurred in cultivated soils than salt-affected soils. The results indicated that saline-alkali land reclamation leads to plant-derived C becoming the dominant contributor of SOC storage. POC storage and MAOC storage were strongly linked to plant- and microbial-derived C accumulation, respectively, caused by saline-alkali land reclamation. Our findings suggest that saline-alkali land reclamation increases C storage in topsoil by preferentially promoting plant-derived C accumulation.
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Affiliation(s)
- Lin Chen
- State Key Laboratory of Soil and Sustainable Agriculture, Fengqiu Experimental Station of National Ecosystem Research Network of China, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 211135, China
| | - Guixiang Zhou
- State Key Laboratory of Soil and Sustainable Agriculture, Fengqiu Experimental Station of National Ecosystem Research Network of China, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 211135, China
| | - Biao Feng
- State Key Laboratory of Soil and Sustainable Agriculture, Fengqiu Experimental Station of National Ecosystem Research Network of China, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 211135, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Wang
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Yu Luo
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Fang Li
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, China
| | - Congcong Shen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Donghao Ma
- State Key Laboratory of Soil and Sustainable Agriculture, Fengqiu Experimental Station of National Ecosystem Research Network of China, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 211135, China
| | - Congzhi Zhang
- State Key Laboratory of Soil and Sustainable Agriculture, Fengqiu Experimental Station of National Ecosystem Research Network of China, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 211135, China
| | - Jiabao Zhang
- State Key Laboratory of Soil and Sustainable Agriculture, Fengqiu Experimental Station of National Ecosystem Research Network of China, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 211135, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Chudasama T, Dangar K, Gadhvi K, Vyas S, Dudhagara D. Multivariate statistical analysis of bioavailability of heavy metals and mineral characterization in selected species of coastal flora. Sci Rep 2024; 14:11282. [PMID: 38760440 PMCID: PMC11101636 DOI: 10.1038/s41598-024-62201-0] [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: 12/04/2023] [Accepted: 05/14/2024] [Indexed: 05/19/2024] Open
Abstract
This study presents a thorough investigation into the concentration of heavy metals and mineral composition within four distinct coastal flora species: Cyperus conglomeratus, Halopyrum mucronatum, Sericostem pauciflorum, and Salvadora persica. Employing rigorous statistical methodologies such as Pearson coefficient correlation, principal component analysis (PCA), analysis of variance (ANOVA), and interclass correlation (ICC), we aimed to elucidate the bioavailability of heavy metals, minerals, and relevant physical characteristics. The analysis focused on essential elements including copper (Cu), iron (Fe), manganese (Mn), zinc (Zn), magnesium (Mg2+), calcium (Ca2+), sodium (Na+), potassium (K+), and chloride (Cl-), all of which are known to play pivotal roles in the ecological dynamics of coastal ecosystems. Through PCA, we discerned distinctive patterns within PC1 to PC4, collectively explaining an impressive 99.65% of the variance observed in heavy metal composition across the studied flora species. These results underscore the profound influence of environmental factors on the mineral composition of coastal flora, offering critical insights into the ecological processes shaping these vital ecosystems. Furthermore, significant correlations among mineral contents in H. mucronatum; K+ with content of Na+ (r = 0.989) and Mg2+ (r = 0.984); as revealed by ICC analyses, contributed to a nuanced understanding of variations in electrical conductivity (EC), pH levels, and ash content among the diverse coastal flora species. By shedding light on heavy metal and mineral dynamics in coastal flora, this study not only advances our scientific understanding but also provides a foundation for the development of targeted environmental monitoring and management strategies aimed at promoting the ecological sustainability and resilience of coastal ecosystems in the face of ongoing environmental challenges.
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Affiliation(s)
- Tarla Chudasama
- Department of Life Sciences, School of Science, Dr. Subhash University, Junagadh, Gujarat, India
| | - Kiran Dangar
- Savaj Junagadh Dist. Co-Operative Milk Producers Union Ltd, Junagadh, Gujarat, India
| | - Kamlesh Gadhvi
- Gujarat Forestry Research Foundation, Gandhinagar, Gujarat, India
| | - Suhas Vyas
- Department of Life Sciences, Bhakta Kavi Narsinh Mehta University, Junagadh, Gujarat, India.
| | - Dushyant Dudhagara
- Department of Life Sciences, Bhakta Kavi Narsinh Mehta University, Junagadh, Gujarat, India
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Ye J, Fan Y, Zhang H, Teng W, Teng K, Wu J, Fan X, Wang S, Yue Y. Octoploids Show Enhanced Salt Tolerance through Chromosome Doubling in Switchgrass ( Panicum virgatum L.). PLANTS (BASEL, SWITZERLAND) 2024; 13:1383. [PMID: 38794454 PMCID: PMC11124981 DOI: 10.3390/plants13101383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/11/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024]
Abstract
Polyploid plants often exhibit enhanced stress tolerance. Switchgrass is a perennial rhizomatous bunchgrass that is considered ideal for cultivation in marginal lands, including sites with saline soil. In this study, we investigated the physiological responses and transcriptome changes in the octoploid and tetraploid of switchgrass (Panicum virgatum L. 'Alamo') under salt stress. We found that autoploid 8× switchgrass had enhanced salt tolerance compared with the amphidiploid 4× precursor, as indicated by physiological and phenotypic traits. Octoploids had increased salt tolerance by significant changes to the osmoregulatory and antioxidant systems. The salt-treated 8× Alamo plants showed greater potassium (K+) accumulation and an increase in the K+/Na+ ratio. Root transcriptome analysis for octoploid and tetraploid plants with or without salt stress revealed that 302 upregulated and 546 downregulated differentially expressed genes were enriched in genes involved in plant hormone signal transduction pathways and were specifically associated with the auxin, cytokinin, abscisic acid, and ethylene pathways. Weighted gene co-expression network analysis (WGCNA) detected four significant salt stress-related modules. This study explored the changes in the osmoregulatory system, inorganic ions, antioxidant enzyme system, and the root transcriptome in response to salt stress in 8× and 4× Alamo switchgrass. The results enhance knowledge of the salt tolerance of artificially induced homologous polyploid plants and provide experimental and sequencing data to aid research on the short-term adaptability and breeding of salt-tolerant biofuel plants.
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Affiliation(s)
- Jiali Ye
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (J.Y.); (Y.F.); (H.Z.); (W.T.); (K.T.); (J.W.); (X.F.)
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Yupu Fan
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (J.Y.); (Y.F.); (H.Z.); (W.T.); (K.T.); (J.W.); (X.F.)
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Xianyang 712100, China
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Hui Zhang
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (J.Y.); (Y.F.); (H.Z.); (W.T.); (K.T.); (J.W.); (X.F.)
| | - Wenjun Teng
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (J.Y.); (Y.F.); (H.Z.); (W.T.); (K.T.); (J.W.); (X.F.)
| | - Ke Teng
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (J.Y.); (Y.F.); (H.Z.); (W.T.); (K.T.); (J.W.); (X.F.)
| | - Juying Wu
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (J.Y.); (Y.F.); (H.Z.); (W.T.); (K.T.); (J.W.); (X.F.)
| | - Xifeng Fan
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (J.Y.); (Y.F.); (H.Z.); (W.T.); (K.T.); (J.W.); (X.F.)
| | - Shiwen Wang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Xianyang 712100, China
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Yuesen Yue
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (J.Y.); (Y.F.); (H.Z.); (W.T.); (K.T.); (J.W.); (X.F.)
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Iqbal MS, Clode PL, Malik AI, Erskine W, Kotula L. Salt tolerance in mungbean is associated with controlling Na and Cl transport across roots, regulating Na and Cl accumulation in chloroplasts and maintaining high K in root and leaf mesophyll cells. PLANT, CELL & ENVIRONMENT 2024. [PMID: 38757412 DOI: 10.1111/pce.14943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 03/28/2024] [Accepted: 04/30/2024] [Indexed: 05/18/2024]
Abstract
Salinity tolerance requires coordinated responses encompassing salt exclusion in roots and tissue/cellular compartmentation of salt in leaves. We investigated the possible control points for salt ions transport in roots and tissue tolerance to Na+ and Cl- in leaves of two contrasting mungbean genotypes, salt-tolerant Jade AU and salt-sensitive BARI Mung-6, grown in nonsaline and saline (75 mM NaCl) soil. Cryo-SEM X-ray microanalysis was used to determine concentrations of Na, Cl, K, Ca, Mg, P, and S in various cell types in roots related to the development of apoplastic barriers, and in leaves related to photosynthetic performance. Jade AU exhibited superior salt exclusion by accumulating higher [Na] in the inner cortex, endodermis, and pericycle with reduced [Na] in xylem vessels and accumulating [Cl] in cortical cell vacuoles compared to BARI Mung-6. Jade AU maintained higher [K] in root cells than BARI Mung-6. In leaves, Jade AU maintained lower [Na] and [Cl] in chloroplasts and preferentially accumulated [K] in mesophyll cells than BARI Mung-6, resulting in higher photosynthetic efficiency. Salinity tolerance in Jade AU was associated with shoot Na and Cl exclusion, effective regulation of Na and Cl accumulation in chloroplasts, and maintenance of high K in root and leaf mesophyll cells.
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Affiliation(s)
- Md Shahin Iqbal
- Center for Plant Genetics and Breeding, The UWA School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, Western Australia, Australia
- Pulses Research Center, Bangladesh Agricultural Research Institute, Ishurdi, Bangladesh
| | - Peta L Clode
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Perth, Western Australia, Australia
- School of Biological Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Al Imran Malik
- Center for Plant Genetics and Breeding, The UWA School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, Western Australia, Australia
- International Center for Tropical Agriculture (CIAT-Asia), Lao People's Democratic Republic Office, Vientiane, Laos
| | - William Erskine
- Center for Plant Genetics and Breeding, The UWA School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, Western Australia, Australia
| | - Lukasz Kotula
- The UWA Institute of Agriculture, The University of Western Australia, Perth, Western Australia, Australia
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Soni S, Jha AB, Dubey RS, Sharma P. Nanowonders in agriculture: Unveiling the potential of nanoparticles to boost crop resilience to salinity stress. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 925:171433. [PMID: 38458469 DOI: 10.1016/j.scitotenv.2024.171433] [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: 11/25/2023] [Revised: 02/10/2024] [Accepted: 03/01/2024] [Indexed: 03/10/2024]
Abstract
Soil salinization significantly affects crop production by reducing crop quality and decreasing yields. Climate change can intensify salinity-related challenges, making the task of achieving global food security more complex. To address the problem of elevated salinity stress in crops, nanoparticles (NPs) have emerged as a promising solution. NPs, characterized by their small size and extensive surface area, exhibit remarkable functionality and reactivity. Various types of NPs, including metal and metal oxide NPs, carbon-based NPs, polymer-based NPs, and modified NPs, have displayed potential for mitigating salinity stress in plants. However, the effectiveness of NPs application in alleviating plant stress is dependent upon multiple factors, such as NPs size, exposure duration, plant species, particle composition, and prevailing environmental conditions. Moreover, alterations to NPs surfaces through functionalization and coating also play a role in influencing plant tolerance to salinity stress. NPs can influence cellular processes by impacting signal transduction and gene expression. They counteract reactive oxygen species (ROS), regulate the water balance, enhance photosynthesis and nutrient uptake and promote plant growth and yield. The objective of this review is to discuss the positive impacts of diverse NPs on alleviating salinity stress within plants. The intricate mechanisms through which NPs accomplish this mitigation are also discussed. Furthermore, this review addresses existing research gaps, recent breakthroughs, and prospective avenues for utilizing NPs to combat salinity stress.
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Affiliation(s)
- Sunil Soni
- School of Environment and Sustainable Development, Central University of Gujarat, Sector-30, Gandhinagar 382030, Gujarat, India
| | - Ambuj Bhushan Jha
- School of Life Sciences, Central University of Gujarat, Sector-30, Gandhinagar 382030, Gujarat, India
| | - Rama Shanker Dubey
- Central University of Gujarat, Sector-29, Gandhinagar 382030, Gujarat, India
| | - Pallavi Sharma
- School of Environment and Sustainable Development, Central University of Gujarat, Sector-30, Gandhinagar 382030, Gujarat, India.
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Liu X, Liu W, Su Z, Lu J, Zhang P, Cai M, Li W, Liu F, Andersen MN, Manevski K. Biochar addition and reduced irrigation modulates leaf morpho-physiology and biological nitrogen fixation in faba bean-ryegrass intercropping. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 925:171731. [PMID: 38492602 DOI: 10.1016/j.scitotenv.2024.171731] [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: 10/20/2023] [Revised: 02/18/2024] [Accepted: 03/13/2024] [Indexed: 03/18/2024]
Abstract
Intercropping legume with grass has potential to increase biomass and protein yield via biological N2-fixation (BNF) benefits, whereas the joint effects of biochar (BC) coupled with deficit irrigation on intercropping systems remain elusive. A 15N isotope-labelled experiment was implemented to investigate morpho-physiological responses of faba bean-ryegrass intercrops on low- (550 °C, LTBC) or high-temperature BC (800 °C, HTBC) amended sandy-loam soil under full (FI), deficit (DI) and partial root-zone drying irrigation (PRD). LTBC and HTBC significantly reduced intrinsic water-use efficiency (WUE) by 12 and 14 %, and instantaneous WUE by 8 and 16 %, respectively, in faba bean leaves, despite improved photosynthetic (An) and transpiration rate (Tr), and stomatal conductance (gs). Compared to FI, DI and PRD lowered faba bean An, gs and Tr, but enhanced leaf-scale and time-integrated WUE as proxied by the diminished shoots Δ13C. PRD enhanced WUE as lower gs, Tr and guard cell length than DI-plants. Despite higher carbon ([C]) and N concentration ([N]) in faba bean shoots amended by BC, the aboveground C- and N-pool of faba bean were reduced, while these pools increased for ryegrass. The N-use efficiency (NUE) in faba bean shoots was reduced by 9 and 14 % for LTBC and HTBC, respectively, but not for ryegrass. Interestingly, ryegrass shoots had 52 % higher NUE than faba bean shoots. The N derived from atmosphere (% Ndfa) was increased by 2 and 9 % under LTBC and HTBC, respectively, while it decreased slightly by reduced irrigation. Quantity of BNF in faba bean aboveground biomass decreased with HTBC coupled with reduced irrigation, mainly towards decreased biomass and soil N uptake by faba bean. Therefore, HTBC might not be a feasible option to improve WUE and BNF in faba bean-ryegrass intercropping, but PRD is permissible as the clear trade-off between BC and PRD.
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Affiliation(s)
- Xuezhi Liu
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China; Engineering Technology Research Center of Water-Saving and Water Resource Regulation in Ningxia, Yinchuan 750021, China; Ningxia Waler-saving Irrigation and Water Resource Control Engineering Technology Research Center, Yinchuan, Ningxia 750021, China.
| | - Weilun Liu
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
| | - Zhenjuan Su
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China.
| | - Junsheng Lu
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
| | - Peng Zhang
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
| | - Mengting Cai
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
| | - Wangcheng Li
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China; Engineering Technology Research Center of Water-Saving and Water Resource Regulation in Ningxia, Yinchuan 750021, China; Ningxia Waler-saving Irrigation and Water Resource Control Engineering Technology Research Center, Yinchuan, Ningxia 750021, China
| | - Fulai Liu
- Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegaard Alle 13, 2630 Taastrup, Denmark; Sino-Danish Center for Education and Research, Eastern Yanqihu campus, University of Chinese Academy of Sciences, 380 Huaibeizhuang, 101400 Beijing, China
| | - Mathias Neumann Andersen
- Department of Agroecology, Aarhus University, Blichers Allé 20, 8830 Tjele, Denmark; Sino-Danish Center for Education and Research, Eastern Yanqihu campus, University of Chinese Academy of Sciences, 380 Huaibeizhuang, 101400 Beijing, China
| | - Kiril Manevski
- Department of Agroecology, Aarhus University, Blichers Allé 20, 8830 Tjele, Denmark; Sino-Danish Center for Education and Research, Eastern Yanqihu campus, University of Chinese Academy of Sciences, 380 Huaibeizhuang, 101400 Beijing, China.
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Pacheco-Sangerman F, Gómez-Merino FC, Peralta-Sánchez MG, Trejo-Téllez LI. Sulfated Nutrition Modifies Nutrient Content and Photosynthetic Pigment Concentration in Cabbage under Salt Stress. PLANTS (BASEL, SWITZERLAND) 2024; 13:1337. [PMID: 38794408 PMCID: PMC11124958 DOI: 10.3390/plants13101337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 04/28/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024]
Abstract
Negative effects of salt stress may be counteracted by adequate management of sulfated nutrition. Herein, we applied 3.50, 4.25, and 5.00 mM SO42- in a nutrient solution to counteract salt stress induced by 75 and 150 mM NaCl in cabbage cv. Royal. The increase in NaCl concentration from 75 to 150 mM reduced the contents of macronutrients and micronutrients in the shoot. When increasing from 3.50 to 4.25 mM SO42-, the contents of nitrogen (N), phosphorous (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S) in shoots were enhanced, at both concentrations of NaCl. Increasing from 3.50 to 4.25 mM SO42- enhanced iron (Fe), zinc (Zn), manganese (Mn), and sodium (Na) concentrations with 75 mM NaCl. With 150 mM NaCl, the increase from 3.50 to 4.25 mM SO42- enhanced the contents of Cu and Mn, but also those of Na. Chlorophylls a, b, and total decreased as the concentration of SO42- increased in plants treated with 150 mM NaCl. With 75 mM NaCl, carotenoid concentration had a positive relationship with SO42-. Hence, the 4.25 mM SO42- concentration increased the contents of macronutrients and micronutrients in the presence of 75 mM NaCl, while, with 150 mM NaCl, it improved the contents of macronutrients except K. The chlorophyll a/chlorophyll b ratio remained close to 3 when the plants were treated with 5.00 mM SO42-, regardless of NaCl. Similarly, this level of SO42- increased the concentration of carotenoids, which translated into reductions in the total chlorophyll/carotenoid ratios, indicating a protective effect of the photosynthetic apparatus. It is concluded that higher doses of sulfur favor the accumulation of nutrients and increase the concentration of carotenoids under salt stress.
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Affiliation(s)
- Fresia Pacheco-Sangerman
- Programa de Edafología, Colegio de Postgraduados Campus Montecillo, Carretera México-Texcoco km 36.5, Montecillo C. P. 56264, Estado de México, Mexico
| | - Fernando Carlos Gómez-Merino
- Programa de Recursos Genéticos y Productividad-Fisiología Vegetal, Colegio de Postgraduados Campus Montecillo, Carretera México-Texcoco km 36.5, Montecillo C. P. 56264, Estado de México, Mexico
| | - María Guadalupe Peralta-Sánchez
- Programa de Edafología, Colegio de Postgraduados Campus Montecillo, Carretera México-Texcoco km 36.5, Montecillo C. P. 56264, Estado de México, Mexico
| | - Libia I Trejo-Téllez
- Programa de Edafología, Colegio de Postgraduados Campus Montecillo, Carretera México-Texcoco km 36.5, Montecillo C. P. 56264, Estado de México, Mexico
- Programa de Recursos Genéticos y Productividad-Fisiología Vegetal, Colegio de Postgraduados Campus Montecillo, Carretera México-Texcoco km 36.5, Montecillo C. P. 56264, Estado de México, Mexico
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Nazih A, Baghour M, Maatougui A, Aboukhalid K, Chiboub B, Bazile D. Effect of Gibberellic Acid and Mechanical Scarification on the Germination and Seedling Stages of Chenopodium quinoa Willd. under Salt Stress. PLANTS (BASEL, SWITZERLAND) 2024; 13:1330. [PMID: 38794401 PMCID: PMC11125075 DOI: 10.3390/plants13101330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/04/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024]
Abstract
Quinoa (Chenopodium quinoa Willd.) is a facultative halophyte renowned for its importance in enhancing food security, and it supports forage production across diverse climatic regions. The objective of this study is to examine the impacts of multiple pre-treatment methods on C. quinoa seed (Titicaca cultivar) germination parameters, identify the optimum pre-treatment to diminish the consequence of salinity, and promote the productivity of this crop, especially in marginal environments. For this purpose, a spectrum of sodium chloride (NaCl) concentrations spanning from 0 to 500 mM and gibberellic acid (GA3) concentrations ranging from 0 to 300 ppm were tested, and mechanical scarification (MS) was carried out. The effect of a combination of these pretreatment NaCl/GA3 and NaCl/MS on the germination parameters of C. quinoa seed was also investigated. The results showed that the total germination, vigor index, and germination index decreased progressively with an increase in salinity. Hence, salinity exhibited a notable influence on most germination parameters. Moreover, seeds scarified with 500 mM of NaCl negatively affected all measured parameters. In contrast, gibberellic acid applied at 200 ppm was effective on most of the parameters measured, particularly under 100 mM of NaCl. These findings indicate that immersing seeds in gibberellic acid could mitigate the adverse impacts of salinity.
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Affiliation(s)
- Abderrahmane Nazih
- Multidisciplinary Faculty of Nador, Mohamed 1st University, B.P. 300, Selouane 60700, Morocco; (M.B.); (B.C.)
- National Institute of Agronomic Research, CRRA Oujda, 10 Bd Mohamed VI, B.P. 428, Oujda 60000, Morocco; (A.M.); (K.A.)
| | - Mourad Baghour
- Multidisciplinary Faculty of Nador, Mohamed 1st University, B.P. 300, Selouane 60700, Morocco; (M.B.); (B.C.)
| | - Abdesselam Maatougui
- National Institute of Agronomic Research, CRRA Oujda, 10 Bd Mohamed VI, B.P. 428, Oujda 60000, Morocco; (A.M.); (K.A.)
| | - Kaoutar Aboukhalid
- National Institute of Agronomic Research, CRRA Oujda, 10 Bd Mohamed VI, B.P. 428, Oujda 60000, Morocco; (A.M.); (K.A.)
| | - Basma Chiboub
- Multidisciplinary Faculty of Nador, Mohamed 1st University, B.P. 300, Selouane 60700, Morocco; (M.B.); (B.C.)
| | - Didier Bazile
- CIRAD, UMR SENS, 34398 Montpellier, France;
- SENS, CIRAD, IRD, Université de Paul Valéry Montpellier 3, 34090 Montpellier, France
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Rajappa S, Krishnamurthy P, Huang H, Yu D, Friml J, Xu J, Kumar PP. The translocation of a chloride channel from the Golgi to the plasma membrane helps plants adapt to salt stress. Nat Commun 2024; 15:3978. [PMID: 38729926 PMCID: PMC11087495 DOI: 10.1038/s41467-024-48234-z] [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: 09/19/2022] [Accepted: 04/23/2024] [Indexed: 05/12/2024] Open
Abstract
A key mechanism employed by plants to adapt to salinity stress involves maintaining ion homeostasis via the actions of ion transporters. While the function of cation transporters in maintaining ion homeostasis in plants has been extensively studied, little is known about the roles of their anion counterparts in this process. Here, we describe a mechanism of salt adaptation in plants. We characterized the chloride channel (CLC) gene AtCLCf, whose expression is regulated by WRKY transcription factor under salt stress in Arabidopsis thaliana. Loss-of-function atclcf seedlings show increased sensitivity to salt, whereas AtCLCf overexpression confers enhanced resistance to salt stress. Salt stress induces the translocation of GFP-AtCLCf fusion protein to the plasma membrane (PM). Blocking AtCLCf translocation using the exocytosis inhibitor brefeldin-A or mutating the small GTPase gene AtRABA1b/BEX5 (RAS GENES FROM RAT BRAINA1b homolog) increases salt sensitivity in plants. Electrophysiology and liposome-based assays confirm the Cl-/H+ antiport function of AtCLCf. Therefore, we have uncovered a mechanism of plant adaptation to salt stress involving the NaCl-induced translocation of AtCLCf to the PM, thus facilitating Cl- removal at the roots, and increasing the plant's salinity tolerance.
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Affiliation(s)
- Sivamathini Rajappa
- Department of Biological Sciences and Research Centre on Sustainable Urban Farming, National University of Singapore, 14 Science Drive 4, Singapore, 117543, Singapore
| | - Pannaga Krishnamurthy
- Department of Biological Sciences and Research Centre on Sustainable Urban Farming, National University of Singapore, 14 Science Drive 4, Singapore, 117543, Singapore
- NUS Environmental Research Institute, National University of Singapore, #02-01, T-Lab Building, 5A Engineering Drive 1, Singapore, 117411, Singapore
| | - Hua Huang
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Electrophysiology Core Facility, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117456, Singapore
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore: Level 5, Centre for Life Sciences, 28 Medical Drive, Singapore, 117456, Singapore
- Cardiovascular Diseases Program, National University of Singapore, 14 Medical Drive, MD6, #08-01, Singapore, 117599, Singapore
| | - Dejie Yu
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Electrophysiology Core Facility, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117456, Singapore
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore: Level 5, Centre for Life Sciences, 28 Medical Drive, Singapore, 117456, Singapore
- Cardiovascular Diseases Program, National University of Singapore, 14 Medical Drive, MD6, #08-01, Singapore, 117599, Singapore
| | - Jiří Friml
- Institute of Science and Technology Austria (IST Austria) Am Campus 1, 3400, Klosterneuburg, Austria
| | - Jian Xu
- Department of Plant Systems Physiology, Radboud Institute for Biological and Environmental Sciences, Radboud University, Huygens Building, Heyendaalseweg 135, 6500 AJ, Nijmegen, The Netherlands
| | - Prakash P Kumar
- Department of Biological Sciences and Research Centre on Sustainable Urban Farming, National University of Singapore, 14 Science Drive 4, Singapore, 117543, Singapore.
- NUS Environmental Research Institute, National University of Singapore, #02-01, T-Lab Building, 5A Engineering Drive 1, Singapore, 117411, Singapore.
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