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Overexpression of enhances salt tolerance in rice. | LitMetric

Overexpression of enhances salt tolerance in rice.

Front Plant Sci

State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu, China.

Published: January 2025

Excessive salt accumuln in soil is one of the most important abiotic stresses in agricultural environments. The Domain of Unknown Function 868 (DUF868) family, comprising 15 members in rice, has been identified in the protein family database. In this study, we cloned and functionally characterized , a member of the OsDUF868 family, to elucidate its role in rice response to salt stress. A series of experiments, including RT-qPCR, Agrobacterium-mediated transient transformation in tobacco for localization analysis, phenotypic characterization, physiological and biochemical index measurement, and leaf staining, were conducted to investigate the function of under salt stress. Transcriptional analysis revealed that exhibited the most significant response to low temperature and salt stress. Preliminary subcellular localization studies indicated that is localized in the cell membrane. Phenotypic Identification Experiments showed Overexpression lines of enhanced resistance to salt stress and increased survival rates, while knockout lines of were opposite. Physiological and biochemical assessments, along with leaf staining, demonstrated that overexpression of improved the activity against oxidative stress.under salt stress. Furthermore, overexpression of elevated the transcription levels of positively regulated salt stress-related genes. These findings suggest that overexpression of enhances rice tolerance to salt stress at the molecular level through a series of regulatory mechanisms. This study provides valuable insights into the functional roles of the DUF868 family in plant responses to abiotic stress.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11814167PMC
http://dx.doi.org/10.3389/fpls.2025.1458467DOI Listing

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