Callose deposition during pollen development

Image credit: Seale 2020


News and Views: Callose is a cell wall component that is dynamically deposited and degraded during pollen development. Thanks to a new article investigating pollen formation in cotton (Gossypium hirsutum), we now know that a pollen-specific protein regulates callose deposition by inhibiting the action of a transcription factor, WRKY15.

Plant Physiology, 184(2):564-565
Madeleine Seale
Leverhulme Early Career Fellow