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Author Gao Q., Yin X., Wang F., Hu S., Liu W., Chen L., Dai X., Liang M.
Title <i>OsJRL40</i>, a Jacalin-Related Lectin Gene, Promotes Salt Stress Tolerance in Rice.
Abstract:
High salinity is a major stress factor affecting the quality and productivity of rice (<i>Oryza sativa</i> L.). Although numerous salt tolerance-related genes have been identified in rice, their molecular mechanisms remain unknown. Here, we report that <i>OsJRL40</i>, a Jacalin-Related Lectin Gene, confers remarkable salt tolerance in rice. The loss of function of <i>OsJRL40</i> increased sensitivity to salt stress in rice, whereas its overexpression enhanced salt tolerance at the seedling stage and during reproductive growth. &#x3b2;-glucuronidase (GUS) reporter assays indicated that <i>OsJRL40</i> is expressed to higher levels in roots and internodes than in other tissues, and subcellular localization analysis revealed that the OsJRL40 protein localizes to the cytoplasm. Further molecular analyses showed that OsJRL40 enhances antioxidant enzyme activities and regulates Na+-K+ homeostasis under salt stress. RNA-seq analysis revealed that <i>OsJRL40</i> regulates salt tolerance in rice by controlling the expression of genes encoding Na+/K+ transporters, salt-responsive transcription factors, and other salt response-related proteins. Overall, this study provides a scientific basis for an in-depth investigation of the salt tolerance mechanism in rice and could guide the breeding of salt-tolerant rice cultivars.
Journal Int J Mol Sci
Country China
Volume 24(8)
Pages
Year 2023
PubMed ID 37108614
PubMed Central ID 10138497
DOI 10.3390/ijms24087441
URL -
Relation
Gene 2R_MYB36 AKT1 CDPK13 JAC1 JRL8 KAT1 LCS ONAC2 WRKY71
INSD -
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain 		-
Stages in Each Organ
- Muant Lines (Gene) 		-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
/rice/oryzabase