AtVPS41-mediated endocytic pathway is essential for pollen tube-stigma interaction in Arabidopsis.

ABSTRACT: In flowering plants, extensive male-female interactions are required for successful fertilization in which various signaling cascades are involved. Prevacuolar compartments (PVC) and vacuoles are two types of subcellular compartments that terminate signal transduction by sequestrating signaling molecules in yeast and mammalian cells; however, the manner in which they might be involved in male-female interactions in plants is unknown. In this study, we identified Arabidopsis thaliana vacuolar protein sorting 41 (AtVPS41), encoded by a single-copy gene with sequence similarity to yeast Vps41p, as a new factor controlling pollen tube-stigma interaction. Loss of AtVPS41 function disrupted penetration of pollen tubes into the transmitting tissue and thus led to failed male transmission. In the

SUBMITTER: Hao L 

PROVIDER: S-EPMC4896696 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature