Transcript profiling of cytokinin action in Arabidopsis roots and shoots discovers largely similar but also organ-specific responses.

ABSTRACT:

Background

The plant hormone cytokinin regulates growth and development of roots and shoots in opposite ways. In shoots it is a positive growth regulator whereas it inhibits growth in roots. It may be assumed that organ-specific regulation of gene expression is involved in these differential activities, but little is known about it. To get more insight into the transcriptional events triggered by cytokinin in roots and shoots, we studied genome-wide gene expression in cytokinin-treated and cytokinin-deficient roots and shoots.

Results

It was found by principal component analysis of the transcriptomic data that the immediate-early response to a cytokinin stimulus differs from the later response, and that the transcriptome of cytokinin-deficient plants is different from both t

SUBMITTER: Brenner WG 

PROVIDER: S-EPMC3519560 | biostudies-literature | 2012 Jul

REPOSITORIES: biostudies-literature