PsEND1 Is a Key Player in Pea Pollen Development Through the Modulation of Redox Homeostasis.

ABSTRACT: Redox homeostasis has been linked to proper anther and pollen development. Accordingly, plant cells have developed several Reactive Oxygen Species (ROS)-scavenging mechanisms to maintain the redox balance. Hemopexins constitute one of these mechanisms preventing heme-associated oxidative stress in animals, fungi, and plants. Pisum sativum ENDOTHECIUM 1 (PsEND1) is a pea anther-specific gene that encodes a protein containing four hemopexin domains. We report the functional characterization of PsEND1 and the identification in its promoter region of cis-regulatory elements that are essential for the specific expression in anthers. PsEND1 promoter deletion analysis revealed that a putative CArG-like regulatory motif is necessary to confer promoter activity in develo

SUBMITTER: Hamza R 

PROVIDER: S-EPMC8586548 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature