Phytohormone cytokinin guides microtubule dynamics during cell progression from proliferative to differentiated stage.

ABSTRACT: Cell production and differentiation for the acquisition of specific functions are key features of living systems. The dynamic network of cellular microtubules provides the necessary platform to accommodate processes associated with the transition of cells through the individual phases of cytogenesis. Here, we show that the plant hormone cytokinin fine-tunes the activity of the microtubular cytoskeleton during cell differentiation and counteracts microtubular rearrangements driven by the hormone auxin. The endogenous upward gradient of cytokinin activity along the longitudinal growth axis in Arabidopsis thaliana roots correlates with robust rearrangements of the microtubule cytoskeleton in epidermal cells progressing from the proliferative to the differentiation stage. Controlled increases

SUBMITTER: Montesinos JC 

PROVIDER: S-EPMC7459425 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature