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

FEBS Letters
Morten H H NorholmBarbara 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.

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Citations

Sep 27, 2006·Nucleic Acids Research·Hussam H Nour-EldinBarbara A Halkier
Jul 16, 2010·Plant & Cell Physiology·Gernot PoschetMichael Büttner
May 17, 2014·Plant & Cell Physiology·Stefan ReuscherKatsuhiro Shiratake
Sep 28, 2014·FEBS Letters·Anna MediciRossitza Atanassova
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Apr 20, 2012·Trends in Plant Science·Joan DoidyDaniel Wipf
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Feb 13, 2015·Scientific Reports·Yang ZhangPinghua Li
Mar 25, 2017·Plant & Cell Physiology·Jörg HirscheThomas Roitsch
Aug 28, 2020·Pflügers Archiv : European journal of physiology·Dietmar Geiger
Dec 31, 2017·Seminars in Cell & Developmental Biology·Kohji Yamada, Yuriko Osakabe

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