LBD29 regulates the cell cycle progression in response to auxin during lateral root formation in Arabidopsis thaliana.

ABSTRACT:

Background and aims

LATERAL ORGAN BOUNDARIES DOMAIN 29 (LBD29), an important molecule downstream of auxin response factors ARF7 and ARF19, has a critical role in lateral root formation in Arabidopsis thaliana. The cell cycle activation of pericycle cells and their specification triggered by auxin are crucial for the initiation of lateral roots. In this study, we attempted to determine whether LBD29 is involved in auxin signalling and/or cell cycle regulation and to characterize the roles of LBD29 in these processes.

Methods

The impact of LBD29 on cell cycling progression in pericycle cells was investigated in lbd29 loss-of-function mutant or LBD29-over-expressing plants. The cell cycle was determined by measuring the expression of some cell cycle-related genes using in situ h

SUBMITTER: Feng Z 

PROVIDER: S-EPMC3380585 | biostudies-literature | 2012 Jul

REPOSITORIES: biostudies-literature