<i>OsLAP3/OsSTRL2</i>, encoding a rice strictosidine synthase, is required for anther cuticle formation and pollen exine patterning in rice.

ABSTRACT: The formation of the anther wall and the development of pollen processes, central to rice fertility and yield, are highly dependent on the synthesis and accumulation of lipid polymers. Although several regulatory factors related to lipid biosynthesis during pollen wall development have been identified, the molecular mechanisms controlling these processes remain poorly understood. In this study, a male-sterile rice mutant, lap3, was identified, characterized by normal vegetative growth but complete male sterility due to delayed programmed cell death (PCD) in tapetal cells and defects in anther cuticle and pollen exine formation. Map-based cloning revealed that OsLAP3 is a new allele of the strictosidine synthase-like gene, OsSTRL2. Functional analysis, including complem

SUBMITTER: Chen DB 

PROVIDER: S-EPMC11789761 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature