Post-translational regulation of the membrane transporters contributing to salt tolerance in plants

Gupta, Amber; Shaw, Birendra Prasad; Sahu, Binod Bihari

doi:10.1071/fp21153

Cited by 17 publications

(8 citation statements)

References 125 publications

(205 reference statements)

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“…First, organic solutes accumulate in the cytosol and organelles at high salt concentrations to balance the osmotic pressure of the ions in the vacuole. Second, plant salt tolerance is mainly associated with low maintenance of the cytosolic Na + /K + ratio [33,34]. According to our results, MYC2-like overexpression could elevate the content of proline in transformants compared to the wild type in the presence of 150 mM NaCl, but there were no significant differences in the Na + /K + ratio among these lines (Fig 6).…”

Section: Plos Onementioning

confidence: 63%

Binding of the transcription factor MYC2-like to the ABRE of the OsCYP2 promoter enhances salt tolerance in Oryza sativa

et al. 2022

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Cyclophilins, a type of peptidyl-prolyl cis-trans isomerase, function as important molecular chaperones in a series of biological processes. However, the expression pattern and signal transduction pathway of cyclophilins are still unclear. Here, we showed that the promoter of OsCYP2 could function as a tissue-specific promoter by GUS staining. Moreover, we found that the promoter sequence contained not only core elements but also inducible elements. Then, the ABA-responsive element was used for cDNA library screening, and the transcription factor MYC2-like was identified by a yeast one-hybrid assay and confirmed through an electrophoretic mobility shift assay. Furthermore, the relative expression showed that MYC2-like was induced by abscisic acid. In addition, MYC2-like overexpression enhanced salt tolerance in transformants and partially restored the cyp2-RNAi line. In summary, we explored a novel transcriptional signal mediated by MYC2-like, a potential regulator of salt stress-related physiological processes in rice.

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Section: Plos Onementioning

confidence: 63%

Binding of the transcription factor MYC2-like to the ABRE of the OsCYP2 promoter enhances salt tolerance in Oryza sativa

et al. 2022

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“…Salt stress disturbed the intracellular ion homeostasis and decreased the metabolic activity of plants caused by ionic stress (Zhang et al 2021a;Zhang et al 2021b). In addition, excessive Na + /K + also caused plant cellular dehydration, membrane dysfunction, and ion toxicity (Gupta et al 2021;Zhang et al 2021c). To alleviate ion stress, plants mainly reduce salt ion concentration in the cytoplasm through reduced uptake (Sofy et al 2020), increased exclusion (Wei et al 2022), or compartmentalized salt ions in the vesicles (Lang et al 2017).…”

Section: Discussionmentioning

confidence: 99%

Overexpression of ZmDUF1644 from Zoysia matrella enhances salt tolerance in Arabidopsis thaliana

Yin²,

Chen³

et al. 2023

Plant Growth Regul

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The DUF1644 family is a highly conserved and functionally unknown protein family and has been demonstrated significantly improved the salt tolerance of rice (nonhalophytes). However, little is understood about the function of the DUF1644 gene in halophytes. Further studies are required to determine whether it has a similar function in halophyte species. In our study, the functions of ZmDUF1644 from halophyte Zoysia matrella Z123 species were investigated under salt stress. Phylogenetic analysis clustered ZmDUF1644 and OsSDIP361 in the same group, which function as a salttolerant genes in rice. Our experimental data suggested that the ZmDUF1644 gene significantly alleviated the growth inhibition of transgenic Arabidopsis thaliana seedlings caused by salt stress. The maximum root length, fresh weight, and photosynthetic pigment content of transgenic seedlings were obviously better than that of the wild type. Moreover, a relatively lower relative electrolyte leakage rate, toxic ion (Na + ) content, and Na + /K + ratios were also found in the transgenic line when compared with the wild type under salt stress. In conclusion, this study revealed that the ZmDUF1644 gene was overexpressed in Arabidopsis thaliana significantly enhancing the salt tolerance of seedlings. It is the first report on the functions of ZmDUF1644 from halophyte Zoysia matrella which has a similar function in halophyte species.

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“…In salt-tolerant plants, an up-regulation in NHX-Na+/H+ antiporter activity fueled by the electrochemical proton gradient in the vacuole sap that H+-ATPase creates helps reduce Na+ toxicity through restricting Na+ presence to the vacuole [ 60 ]. In the present study, the Ismailia line and Misr 3 exhibited higher up-regulation of both H+ATPase and NHX2 in the root system under salinity stress.…”

Section: Discussionmentioning

confidence: 99%

Exploring Salinity Tolerance Mechanisms in Diverse Wheat Genotypes Using Physiological, Anatomical, Agronomic and Gene Expression Analyses

Hussein,

Alqahtani,

Alwutayd

et al. 2023

Plants

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Salinity is a widespread abiotic stress that devastatingly impacts wheat growth and restricts its productivity worldwide. The present study is aimed at elucidating biochemical, physiological, anatomical, gene expression analysis, and agronomic responses of three diverse wheat genotypes to different salinity levels. A salinity treatment of 5000 and 7000 ppm gradually reduced photosynthetic pigments, anatomical root and leaf measurements and agronomic traits of all evaluated wheat genotypes (Ismailia line, Misr 1, and Misr 3). In addition, increasing salinity levels substantially decreased all anatomical root and leaf measurements except sclerenchyma tissue upper and lower vascular bundle thickness compared with unstressed plants. However, proline content in stressed plants was stimulated by increasing salinity levels in all evaluated wheat genotypes. Moreover, Na+ ions content and antioxidant enzyme activities in stressed leaves increased the high level of salinity in all genotypes. The evaluated wheat genotypes demonstrated substantial variations in all studied characters. The Ismailia line exhibited the uppermost performance in photosynthetic pigments under both salinity levels. Additionally, the Ismailia line was superior in the activity of superoxide dismutase (SOD), catalase activity (CAT), peroxidase (POX), and polyphenol oxidase (PPO) enzymes followed by Misr 1. Moreover, the Ismailia line recorded the maximum anatomical root and leaf measurements under salinity stress, which enhanced its tolerance to salinity stress. The Ismailia line and Misr 3 presented high up-regulation of H+ATPase, NHX2 HAK, and HKT genes in the root and leaf under both salinity levels. The positive physiological, anatomical, and molecular responses of the Ismailia line under salinity stress were reflected on agronomic performance and exhibited superior values of all evaluated agronomic traits.

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Post-translational regulation of the membrane transporters contributing to salt tolerance in plants

Cited by 17 publications

References 125 publications

Binding of the transcription factor MYC2-like to the ABRE of the OsCYP2 promoter enhances salt tolerance in Oryza sativa

Binding of the transcription factor MYC2-like to the ABRE of the OsCYP2 promoter enhances salt tolerance in Oryza sativa

Overexpression of ZmDUF1644 from Zoysia matrella enhances salt tolerance in Arabidopsis thaliana

Exploring Salinity Tolerance Mechanisms in Diverse Wheat Genotypes Using Physiological, Anatomical, Agronomic and Gene Expression Analyses

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