Callose deficiency modulates plasmodesmata frequency and extracellular distance in rice pollen mother and tapetal cells.

ABSTRACT:

Background and aims

Fertilization relies on pollen mother cells able to transition from mitosis to meiosis to supply gametes. This process involves remarkable changes at the molecular, cellular and physiological levels, including (but not limited to) remodelling of the cell wall. During the onset of meiosis, the cellulose content in the pollen mother cell walls gradually declines, with the concurrent deposition of the polysaccharide callose in anther locules. We aim to understand the biological significance of cellulose-to-callose turnover in pollen mother cells walls.

Methods

We carried out electron microscopic, aniline blue and renaissance staining analyses of rice flowers.

Key results

Our observations indicate that in wild-type rice anthers, the mitosis-to-meiosis

SUBMITTER: Somashekar H 

PROVIDER: S-EPMC11687631 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature