期刊
PHYTOCHEMISTRY
卷 60, 期 7, 页码 703-708出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0031-9422(02)00196-6
关键词
Penicillium decumbens; melanin; inhibitor; Magnaporthe grisea; fungal metabolite; decumbenone; polyketide
Two polyketides, decumbenones A and B, and versiol were isolated from the culture filtrate of the fungus, Penicillium decumbens. Their respective structures were 1-(2.8-dihydroxy-1,2,6-trimethyl-1,2,6,7.8,8a-hexahydronaphthalen-1-yl)-3-hydroxy-1-propanone and 1-(2,8-dihydroxy-1,2,6-trimethyl-1,2,4a.5,6,7,8,8a-octahydronaphthalen-1-yl)-3-hydroxy-1-propanone based on NMR spectroscopic data, chemical conversion, and X-ray analysis. Decumbenone A inhibited melanization in Magnaporthe grisea, the rice blast pathogen, whereas decumbenone B like versiol did not. (C) 2002 Elsevier Science Ltd. All rights reserved.
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