Biochem Biophys Res Commun
February 2025
Leaf senescence is a complex developmental process that is regulated by multiple genetic and environmental factors. Understanding the mechanisms underlying the regulation of leaf senescence will provide valuable insights for manipulation of this trait in crops. Here, we report that the ATP-binding cassette (ABC) transporter OsPDR1 is involved in promoting leaf senescence in rice.
View Article and Find Full Text PDFThe Casparian strip (CS) is a ring-like lignin structure deposited between endodermal cells that forms an apoplastic barrier to control the selective uptake of nutrients in vascular plants. However, the molecular mechanism of CS formation in rice (Oryza sativa), which possesses one CS each in the endodermis and exodermis, is relatively unknown. Here, we functionally characterized CS INTEGRITY FACTOR1 (OsCIF1a, OsCIF1b), OsCIF2, and SCHENGEN3 (OsSGN3a, OsSGN3b) in rice.
View Article and Find Full Text PDFSalt stress is a critical limiting factor for rice growth and production. Although numerous salt-tolerant genes have been identified, the mechanism underlying salt stress tolerance in rice remains unclear. This study reports the need for an uncharacterized WRKY transcription factor OsWRKY54 for rice salt-tolerance.
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