IAA-like substance: Toxin from Colletotrichum gloeosporioides (Penz.) Sacc. fungi

Niran Juntawong; Malee Na Nakorn; Kanya Wongviset . Faculty of Science. Dept. of Botany

IAA-like substance: Toxin from Colletotrichum gloeosporioides (Penz.) Sacc. fungi

1992

Niran Juntawong | Malee Na Nakorn | Kanya Wongviset (Kasetsart Univ., Bangkok (Thailand). Faculty of Science. Dept. of Botany)

Indole compond released by Colletotrichum gloeosporioides fungus in Czapek's culture supplemented or not with 1 mM tryptophan was studied. Paper chromatography revealed a IAA-like compound in 7-, 14-, 21-day-old culture filtrates with Rf range between 0.52 and 0.55. The result on HPLC showed that higher content of IAA-like substance was detected from 14-, 21-and 7-day-old culture filtrates obtained from medium containing 1 mM tryptophan, respectively.

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