期刊
PEST MANAGEMENT SCIENCE
卷 59, 期 11, 页码 1245-1249出版社
JOHN WILEY & SONS LTD
DOI: 10.1002/ps.747
关键词
natural products; crop-protection agents; antifungal activity; Colletotrichum gloeosporioides; polymethoxylated flavones
Four polymethoxylated flavones (3,5,6,7,3',4'-hexamethoxyflavone, 3,5,6,7,8,3',4'-heptamethoxyflavone, 5,6,7,8,4'-pentamethoxyflavone and 5,6,7,8,3',4'-hexamethoxyflavone) were isolated and characterized from cold-pressed orange oil. Their antifungal activities were evaluated against Colletotrichum gloeosporioides (Penz) Penz & Sacc, a major plant pathogen of fruits that causes significant damage to crops in tropical, sub-tropical and temperate regions. Methoxylated flavones were effective in inhibiting mycelial growth of the fungus. As flavone concentration increased, mycelial growth decreased. 5,6,7,8,3',4'-Hexamethoxyflavone completely inhibited the growth of C gloeosporioides at a concentration of 100 mug ml(-1). (C) 2003 Society of Chemical Industry.
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