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Fungicidal potential of methoxylated flavones from citrus for in vitro control of Colletotrichum gloeosporioides , causal agent of anthracnose disease in tropical fruits
Author(s) -
AlmadaRuiz Ernestina,
MartínezTéllez Miguel Ángel,
HernándezÁlamos Maria M,
Vallejo Socorro,
PrimoYúfera Eduardo,
VargasArispuro Irasema
Publication year - 2003
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.747
Subject(s) - flavones , mycelium , fungicide , colletotrichum gloeosporioides , fungus , biology , colletotrichum , botany , horticulture , citrus × sinensis , conidium , orange (colour)
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 µg ml −1 . Copyright © 2003 Society of Chemical Industry

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