Flavonoid-induced expression of a symbiosis-related gene in the cyanobacterium Nostoc punctiforme.
The flavonoid naringin was found to induce the expression of hrmA, a gene with a symbiotic phenotype in the cyanobacterium Nostoc punctiforme. A comparative analysis of several flavonoids revealed the 7-O-neohesperidoside, 4'-OH, and C-2-C-3 double bond in naringin as structural determinants of its hrmA-inducing activity.
Laboratory of Cell and Functional Biology, Faculty of Science, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan.
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Cohen
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Yamasaki
D000975:Antioxidants / Q000494:pharmacology; D001426:Bacterial Proteins / Q000235:genetics*; D000458:Cyanobacteria / Q000235:genetics / Q000502:physiology*; D044950:Flavanones; D005419:Flavonoids / Q000494:pharmacology*; D015964:Gene Expression Regulation, Bacterial / Q000187:drug effects*; D008156:Luciferases / Q000096:biosynthesis / Q000235:genetics; D013329:Structure-Activity Relationship; D013559:Symbiosis / Q000235:genetics
D000975:Antioxidants; D001426:Bacterial Proteins; D044950:Flavanones; D005419:Flavonoids; C085100:hrmA protein, Pseudomonas syringae; D008156:Luciferases; C005274:naringin