CYSTM3 negatively regulates salt stress tolerance in Arabidopsis

Xu, Yang; Yu, Zipeng; Zhang, Shizhong; Wu, Changai; Yang, Guodong; Ke, Yan; Zheng, Chengchao; Huang, Jinguang

doi:10.1007/s11103-019-00825-x

Cited by 29 publications

(18 citation statements)

References 50 publications

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“…In plants under salt stress, the accumulation of proline has multiple protective functions, including osmotic protection and ROS scavenging (Zsigmond et al 2012). SOD, a kind of antioxidant enzyme, also plays an important role in scavenging ROS and protects against oxidative stress under salt conditions (Xu et al 2019).In this study, proline levels and SOD activities are signi cantly higher in the LcSAIN3 overexpression lines than in the wild type under salt stress. SOS pathway is a key regulator of Na + homeostasis, for example via SOS1 (Isayenkov and Maathuis 2019).…”

Section: Discussionmentioning

confidence: 55%

“…Previous studies suggest that the transcription factors can activate many stress-induced genes, such as LEA genes (RD26, RD29A, RD29B, and RAB18) and proline biosynthesis genes (P5CS), and the LEA proteins are mainly involved in protection to desiccation by acting as cellular dewatering protectants under stress conditions (Zheng et al 2019). Proline plays an important role in osmoregulation, and can be also used as an active oxygen scavenger to stabilize protein and membrane structure under pressure (Deinlein et al 2014;Szabados and Savoure 2010).Molecular regulatory networks related to salt stress are complex and have not been fully explored (Xu et al 2019); thus, mining key and novel salt tolerancerelated genes is required for developing breeding strategies to enhance salt stress tolerance in crops.…”

Section: Introductionmentioning

confidence: 99%

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Lcsain3, A Novel Gene From Sheepgrass, Regulates Arabidopsis Seed Germination And Seedling Growth Under Salt Stress

Yang

et al. 2021

Preprint

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Sheepgrass is a perennial native grass species with an aggressive and vigorous rhizome system, and it can tolerate high levels of salt stress. Many salt stress-responsive genes have been identified in sheepgrass. Here, we identified and characterized a novel salt-induced gene, LcSAIN3 (Leymus chinensis salt-induced 3), from sheepgrass. Expression analysis confirmed that LcSAIN3 is induced by PEG, ABA and salt stress. Subcellular localization analysis indicated that the LcSAIN3 protein is mainly localized in the chloroplasts. The heterologous of LcSAIN3 in Arabidopsis increases seed germination under various stress conditions. More importantly, the seedling survival, plant height and weight of the transgenic plants are higher than those of the WT plants under salt stress. The overexpression of LcSAIN3 causes a relatively high accumulation of free proline; enhances SOD activity; and leads to the upregulated expression of several stress-responsive genes, such as AtRAB26, AtRD29B, AtSOS1 and AtP5CS1. Our results suggest that LcSAIN3 may be a useful gene for the molecular breeding to improve plants salt stress tolerance.

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Section: Discussionmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Lcsain3, A Novel Gene From Sheepgrass, Regulates Arabidopsis Seed Germination And Seedling Growth Under Salt Stress

Yang

et al. 2021

Preprint

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“…Moreover, inorganic ion transport and metabolism is high. Soil salinity can cause excessive ion toxicity (Na + and Cl − ) to plants or microbes [35], thus the vigorous inorganic ion transport and metabolism in salt-treated soils may have implications for plants to re-establish ionic homeostasis. Therefore, we assume that these vigorous pathways may contribute to peanut adaption to salt stress.…”

Section: Discussionmentioning

confidence: 99%

Comprehensive Effect of Salt Stress and Peanut Cultivars on the Bacterial Community Structure and Diversity of Peanut Rhizosphere Soils

Ding

Wen

et al. 2020

Preprint

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Background: Plant rhizosphere bacterial communities influence plant growth and stress tolerance, which differs across cultivars and external environments. Peanut (Arachis hypogaea. L) as an important oil crop cultivated worldwide. However, relatively little is known about the comprehensive effects of environmental conditions and peanut cultivars on rhizosphere bacterial community structure and diversity. Results: Here, bacterial community structure diversity from rhizosphere soils of various susceptible and resistant peanut cultivars with or without salt stress was analyzed by 16S rRNA gene deep sequencing and quantitative PCR assays. Taxonomic analysis showed that the bacterial community predominantly consisted of phyla Actinobacteria, Proteobacteria, Chloroflexi, Acidobacteria, and Cyanobacteria. Among these bacteria, numbers of beneficial bacteria Cyanobacteria and Proteobacteria increased, while that of Acidobacteria decreased after salt treatment. Metabolic function prediction showed that the percentages of reads categorized to signaling transduction and inorganic ion transport and metabolism were higher in the salt-treated soils, which may be beneficial to plant survival and salt tolerance. Conclusions: Overall, rhizosphere bacterial community structure and population metabolism are affected by salt stress, which may be conducive to peanut stress tolerance in saline-alkali soil. The study is therefore crucially important to develop the foundation for improving the salt tolerance of peanuts via modifying the soil bacterial community.

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“…Peanuts growing in these types of fields are impaired by soil salinity throughout their life cycle and their seed germination is the more sensitive stage to salt stress [3,5]. Soil salinity can create osmotic potential around the seed and cause excessive ion toxicity (Na + and Cl − ) to seeds [6][7][8]. Therefore, the exposure of seeds to soil salinity results in lower seed viability, reduced germination percentage, increased germination time, and even total inhibition of germination [5,9].…”

Section: Introductionmentioning

confidence: 99%

Influence of Salt Stress on Growth of Spermosphere Bacterial Communities in Different Peanut (Arachis hypogaea L.) Cultivars

Zhang

Dai

et al. 2020

IJMS

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Background: Exposure of seeds to high salinity can cause reduced germination and poor seedling establishment. Improving the salt tolerance of peanut (Arachis hypogaea L.) seeds during germination is an important breeding goal of the peanut industry. Bacterial communities in the spermosphere soils may be of special importance to seed germination under salt stress, whereas extant results in oilseed crop peanut are scarce. Methods: Here, bacterial communities colonizing peanut seeds with salt stress were characterized using 16S rRNA gene sequencing. Results: Peanut spermosphere was composed of four dominant genera: Bacillus, Massilia, Pseudarthrobacter, and Sphingomonas. Comparisons of bacterial community structure revealed that the beneficial bacteria (Bacillus), which can produce specific phosphatases to sequentially mineralize organic phosphorus into inorganic phosphorus, occurred in relatively higher abundance in salt-treated spermosphere soils. Further soil enzyme activity assays showed that phosphatase activity increased in salt-treated spermosphere soils, which may be associated with the shift of Bacillus. Conclusion: This study will form the foundation for future improvement of salt tolerance of peanuts at the seed germination stage via modification of the soil microbes.

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CYSTM3 negatively regulates salt stress tolerance in Arabidopsis

Cited by 29 publications

References 50 publications

Lcsain3, A Novel Gene From Sheepgrass, Regulates Arabidopsis Seed Germination And Seedling Growth Under Salt Stress

Lcsain3, A Novel Gene From Sheepgrass, Regulates Arabidopsis Seed Germination And Seedling Growth Under Salt Stress

Comprehensive Effect of Salt Stress and Peanut Cultivars on the Bacterial Community Structure and Diversity of Peanut Rhizosphere Soils

Influence of Salt Stress on Growth of Spermosphere Bacterial Communities in Different Peanut (Arachis hypogaea L.) Cultivars

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