Annexin5 plays a vital role in Arabidopsis pollen development via Ca2+-dependent membrane trafficking.

ABSTRACT: The regulation of pollen development and pollen tube growth is a complicated biological process that is crucial for sexual reproduction in flowering plants. Annexins are widely distributed from protists to higher eukaryotes and play multiple roles in numerous cellular events by acting as a putative "linker" between Ca2+ signaling, the actin cytoskeleton and the membrane, which are required for pollen development and pollen tube growth. Our recent report suggested that downregulation of the function of Arabidopsis annexin 5 (Ann5) in transgenic Ann5-RNAi lines caused severely sterile pollen grains. However, little is known about the underlying mechanisms of the function of Ann5 in pollen. This study demonstrated that Ann5 associates with phospholipid membrane and this association is stimula

SUBMITTER: Zhu J 

PROVIDER: S-EPMC4097066 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature