Fungicidal potential of methoxylated flavones from citrus for in vitro control of Colletotrichum gloeosporioides, causal agent of anthracnose disease in tropical fruits.
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 Cgloeosporioides at a concentration of 100 microg ml(-1).
Almada-Ruiz
Ernestina
E
Centro de Investigación en Alimentación y Desarrollo, AC Carr a la Victoria km 0.6, Apdo Postal 1735, 83000 Hermosillo, Sonora, Mexico.
Martínez-Téllez
Miguel Angel
MA
Hernández-Alamos
Maria M
MM
Vallejo
Socorro
S
Primo-Yúfera
Eduardo
E
Vargas-Arispuro
Irasema
I
D002957:Citrus / Q000737:chemistry*; D020231:Colletotrichum / Q000187:drug effects / Q000254:growth & development*; D015169:Colony Count, Microbial; D004305:Dose-Response Relationship, Drug; D005419:Flavonoids / Q000737:chemistry / Q000494:pharmacology*; D005638:Fruit / Q000382:microbiology*; D005659:Fungicides, Industrial / Q000494:pharmacology*; D010935:Plant Diseases / Q000382:microbiology; D014329:Tropical Climate
D005419:Flavonoids; D005659:Fungicides, Industrial