Defective pollen meiosis in Arabidopsis due to combined arabinan and galactan insufficiency.

ABSTRACT: The development of pollen is critical for seed plants and depends on precise cellular and molecular mechanisms. It is known that the cell wall plays a key role in the progression of pollen maturation. An earlier phase in pollen development is the meiosis of pollen mother cells (PMCs), a fundamental process for producing viable pollen grains. However, the significance of the cell wall during pre-meiosis processes has remained unclear. Pectin, a major component of the cell wall, accumulates abundantly in pollen. To investigate the significance of the cell wall during pre-meiosis and meiosis, we generated an arad1 gals2 gals3 triple mutant of Arabidopsis thaliana, lacking the genes responsible for normal synthesis of arabinan and galactan, which constitute the side chains of pectin. Although

SUBMITTER: Kikuchi T 

PROVIDER: S-EPMC12461841 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature