ROS regulation of stigma papillae growth and maturation in Arabidopsis thaliana.

ABSTRACT:

Key message

Superoxide accumulates during early stigma papillae growth stages in Arabidopsis. Highly specialized stigma papillae cells play a critical role in plant reproduction. Their main purpose is to catch and interact with pollen, to mediate compatibility responses, to regulate pollen germination, and to guide pollen tubes to the transmitting tract so that the sperm cells carried in the pollen can be delivered to the female gametophyte to achieve double fertilization. In Arabidopsis thaliana, the stigma consists of single-celled stigma papillae that emerge from the apex of the fused carpels. Despite their critical function in plant reproduction, the molecular mechanisms that govern growth and maturation of stigma papillae remain poorly understood. Reactive Oxygen Species (ROS)

SUBMITTER: Sankaranarayanan S 

PROVIDER: S-EPMC12137503 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature