Identification, cloning and characterization of sis7 and sis10 sugar-insensitive mutants of Arabidopsis.

ABSTRACT:

Background

The levels of soluble sugars, such as glucose and sucrose, help regulate many plant metabolic, physiological and developmental processes. Genetic screens are helping identify some of the loci involved in plant sugar response and reveal extensive cross-talk between sugar and phytohormone response pathways.

Results

A forward genetic screen was performed to identify mutants with increased resistance to the inhibitory effects of high levels of exogenous sugars on early Arabidopsis seedling development. The positional cloning and characterization of two of these sugar insensitive (sis) mutants, both of which are also involved in abscisic acid (ABA) biosynthesis or response, are reported. Plants carrying mutations in SIS7/NCED3/STO1 or SIS10/ABI3 are resistant to the in

SUBMITTER: Huang Y 

PROVIDER: S-EPMC2579432 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature