Auxin efflux controls orderly nucellar degeneration and expansion of the female gametophyte in Arabidopsis (vol 230, pg 2261, 2021)

Summary: The nucellus tissue plays a crucial role in plant reproduction by influencing the degeneration of the nucellus and the expansion of the female gametophyte through the regulation of auxin. Auxin efflux is essential for controlling the precise distribution of auxin around the nucellus and the female gametophyte. Maternal tissues control auxin concentration and efflux, serving as a key communication between maternal and filial tissues during development.