Format

Send to

Choose Destination
FEBS Lett. 2006 Apr 17;580(9):2381-7.

Expression of the Arabidopsis high-affinity hexose transporter STP13 correlates with programmed cell death.

Author information

1
Plant Biochemistry Laboratory, center for Molecular Plant Physiology, the royal Veterinary and Agricultural University, Fredericksberg C, Denmark.

Abstract

We report the biochemical characterization in Xenopus oocytes of the Arabidopsis thaliana membrane protein, STP13, as a high affinity, hexose-specific H(+)-symporter. Studies with kinase activators suggest that it is negatively regulated by phosphorylation. STP13 promoter GFP reporter lines show GFP expression only in the vascular tissue in emerging petals under non-stressed conditions. Quantitative PCR and the pSTP13-GFP plants show induction of STP13 in programmed cell death (PCD) obtained by treatments with the fungal toxin fumonisin B1 and the pathogen Pseudomonas syringae. A role for STP13 in PCD is supported by microarray data from e.g. plants undergoing senescence and a strong correlation between STP13 transcripts and the PCD phenotype in different accelerated cell death (acd11) mutants.

PMID:
16616142
DOI:
10.1016/j.febslet.2006.03.064
[Indexed for MEDLINE]
Free full text

Supplemental Content

Full text links

Icon for Wiley
Loading ...
Support Center