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FEBS Lett. 2003 Jan 16;534(1-3):87-92.

Identification of an Arabidopsis mitochondrial succinate-fumarate translocator.

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  • 1Plant Physiology, ZMBP, Auf der Morgenstelle 1, 72076 Tübingen, Germany.

Abstract

Complementation of a yeast acr1 mutant carrying a deletion of the succinate/fumarate carrier gene enabled functional identification of a mitochondrial succinate translocator from Arabidopsis thaliana (AtmSFC1). Thus complementation of yeast mutants is applicable also for identification and characterization of organellar transporters. Reverse transcription polymerase chain reaction and promoter-GUS fusion showed expression of AtmSFC1 in 2 day old dark grown seedlings, which declined in cotyledons during further development, consistent with a role in export of fumarate for gluconeogenesis during lipid mobilization at early germination of Arabidopsis seeds. In mature plants, expression was found in developing and germinating pollen, suggesting a role in ethanolic fermentation.

PMID:
12527366
[PubMed - indexed for MEDLINE]
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