| Literature DB >> 16616142 |
Morten H H Norholm1, Hussam H Nour-Eldin, Peter Brodersen, John Mundy, Barbara A Halkier.
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.Entities:
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Year: 2006 PMID： 16616142 DOI： 10.1016/j.febslet.2006.03.064
Source DB: PubMed Journal: FEBS Lett ISSN： 0014-5793 Impact factor: 4.124