Complementary roles for auxin and auxin signalling revealed by reverse engineering lateral root stable prebranch site formation.

ABSTRACT: Priming is the process through which periodic elevations in auxin signalling prepattern future sites for lateral root formation, called prebranch sites. Thus far, the extent to which elevations in auxin concentration and/or auxin signalling are required for priming and prebranch site formation has remained a matter of debate. Recently, we discovered a reflux-and-growth mechanism for priming generating periodic elevations in auxin concentration that subsequently dissipate. Here, we reverse engineer a mechanism for prebranch site formation that translates these transient elevations into a persistent increase in auxin signalling, resolving the prior debate into a two-step process of auxin concentration-mediated initial signal and auxin signalling capacity-mediated memorization. A crucial aspe

SUBMITTER: Santos Teixeira J 

PROVIDER: S-EPMC9793420 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature