Phytochrome control and anoxia effect on the activity and expression of soybean seedling lipoxygenases 1 and 2

Mauro Maccarrone, Gerrit A. Veldink, Johannes F G Vliegenthart

Research output: Contribution to journalArticle

Abstract

The effects of different light irradiations and anoxia treatment on the activity and expression of the lipoxygenases 1 (LOX-1) and 2 (LOX-2) of soybean seedlings have been investigated. A phytochrome-mediated decrease of the specific activities of both isoenzymes was found which was due to the regulation of the gene expression at the transcriptional level. The anoxia treatment of the seedlings led to a decrease of both lipoxygenase specific activities as well, but this effect was attributable to the reduction of the amount of the two isoenzymes, without changes in the steady-state levels of specific mRNAs. Therefore, light and anoxia are both regulators of soybean lipoxygenases, but their mechanism of action at the molecular level is different.

Original languageEnglish
Pages (from-to)117-121
Number of pages5
JournalFEBS Letters
Volume291
Issue number1
DOIs
Publication statusPublished - Oct 7 1991

Keywords

  • Anoxia
  • Lipoxygenase-1
  • Lipoxygenase-2
  • Phytochrome
  • Soybean

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology

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