Inactivation of delta-endotoxin of Bacillus thuringiensis by tannin

Tannin, an important constituent of many plants, reacted strongly with the proteinaceous insecticidal metabolite of Bacillus thuringiensis. Solutions of a commercial tannin preparation stopped the activity of dissolved crystal protein and activated δ‐endotoxin. Intact crystals lost their activity on...

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Veröffentlicht in:	FEMS microbiology letters 1985-01, Vol.28 (1), p.31-33
Hauptverfasser:	Luthy, P, Hofmann, C, Jaquet, F
Format:	Artikel
Sprache:	eng
Schlagworte:	Bacillus thuringiensis Bacteriology Biological and medical sciences delta -endotoxin endotoxins field inactivation of delta‐endotoxin Fundamental and applied biological sciences. Psychology inactivation Microbiology Pathogenicity, virulence, toxins, bacteriocins, pyrogens, host-bacteria relations, miscellaneous strains Polyphenol‐protein interaction tannin tannins
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Beschreibung
Zusammenfassung:	Tannin, an important constituent of many plants, reacted strongly with the proteinaceous insecticidal metabolite of Bacillus thuringiensis. Solutions of a commercial tannin preparation stopped the activity of dissolved crystal protein and activated δ‐endotoxin. Intact crystals lost their activity only partially in the presence of tannin. Interaction between host plant tannins and δ‐endotoxin might be a major factor where the field efficacy of B. thuringiensis preparations is unexpectedly low.
ISSN:	0378-1097 1574-6968
DOI:	10.1111/j.1574-6968.1985.tb00758.x