期刊
PEST MANAGEMENT SCIENCE
卷 57, 期 6, 页码 554-559出版社
JOHN WILEY & SONS LTD
DOI: 10.1002/ps.318
关键词
phomalactone; Nigrospora sphaerica; Phytophthora infestans; Phytophthora capsici; plant pathogenic fungi
Phomalactone, 5,6-dihydro-5-hydroxy-6-prop-2-enyl-2H-pyran-2-one, produced by the fungus Nigrospora sphaerica, was tested in vitro against nine plant pathogenic fungi, and specifically inhibited the mycelial growth of Phytophthora infestans, with an MIC value of 2.5 mg litre(-1). Its inhibitory activities against sporangium and zoospore germination of P infestans were similar to those against Phytophthora capsici. In vivo, at 100 and 500 mg litre(-1), it reduced the development of tomato late blight caused by P infestans. (C) 2001 Society of Chemical Industry.
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