Article
Arabidopsis RPG1 is important for primexine deposition and functions redundantly with RPG2 for plant fertility at the late reproductive stage.
Plant reproduction - 1 Jun 2013
Sun Ming-Xi, Huang Xue-Yong, Yang Jun, Guan Yue-Feng, Yang Zhong-Nan
Abstract excerpt
Arabidopsis Ruptured Pollen Grain-1 (RPG1/Sweet8) is a member of the MtN3/saliva protein family that functions as a sugar transporter. The rpg1 mutant shows defective exine pattern formation. In this study, transmission electron microscopy (TEM) observations showed that much less primexine was deposited in rpg1 tetrads. Furthermore, microspore membrane undulation was abnormal, and sporopollenin accumulation was...
Topics
- Arabidopsis
- Arabidopsis Proteins
- Biopolymers
- Carotenoids
- Gametogenesis, Plant
- Gene Expression Regulation, Plant
- Glucans
- Glucosyltransferases
- Microscopy, Electron, Transmission
- Monosaccharide Transport Proteins