Auxin-dependent control of cytoskeleton and cell shape regulates division orientation in the Arabidopsis embryo.

ABSTRACT: Premitotic control of cell division orientation is critical for plant development, as cell walls prevent extensive cell remodeling or migration. While many divisions are proliferative and add cells to existing tissues, some divisions are formative and generate new tissue layers or growth axes. Such formative divisions are often asymmetric in nature, producing daughters with different fates. We have previously shown that, in the Arabidopsis thaliana embryo, developmental asymmetry is correlated with geometric asymmetry, creating daughter cells of unequal volume. Such divisions are generated by division planes that deviate from a default "minimal surface area" rule. Inhibition of auxin response leads to reversal to this default, yet the mechanisms underlying division plane choice in the embr

SUBMITTER: Vaddepalli P 

PROVIDER: S-EPMC8612740 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature