期刊
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
卷 75, 期 4, 页码 718-722出版社
TAYLOR & FRANCIS LTD
DOI: 10.1271/bbb.100845
关键词
tuliposide; tulipalin; Baylis-Hillman reaction
类别
资金
- Japan Society for the Promotion of Science of Japan
The structure-activity relationship was investigated to evaluate the antifungal activities of tuliposides and tulipalins against tulip pathogenic fungi. 6-Tuliposide B was effectively synthesized via the asymmetric Baylis-Hillman reaction. Tuliposides and tulipalins showed antifungal activities against most of the strains tested at high concentrations (2.5 mm), while Botrytis tulipae was resistant to tuliposides. Tulipalin formation was involved in the antifungal activity, tulipalin A showed higher inhibitory activity than 6-tuliposide B and tulipalin B. Both the tuliposides and tulipalins showed pigment-inducing activity against Gibberella zeae and inhibitory activity against Fusarium oxysporum f. sp tulipae. These activities were induced at a much lower concentration (0.05 mm) than the antifungal MIC values.
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