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KMID : 0379119970250040340
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Korean Journal of Mycology
1997 Volume.25 No. 4 p.340 ~ p.347
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Cultural Characteristics of Chromogenic and Teleomorphic Strains of Collectotricum gloeosporioides Isolated from Apple and Red pepper
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Abstract
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Conidia and cultural characteristics of isolates of chromogenic and teleomorphic strains of Colletotrichum gloeosporioides from apple and red pepper were compared. The mycelial growth of teleomorphic strains was faster than that of chromogenic strains in potato dextrose agar and V-g agar. The chromogenic isolates from apple and red pepper developed white gray to gray green mycelial rings interspersed with salmon to apricot colored conidial masses in colonies on potato dextrose air and V-8 agar and none formed on ascigerous stage in cultures. The chromogenic isolates from red pepper produced conidia, most with one apex attenuated on apple and potato dextrose agar whereas fusiform and smaller conidia were produced in V-8 agar and water agar leaf medium. The chromogenic isolates from apple produced fusiform conidia in the media tested. The teleomarrphic isolates from apple and red pepper produced cylindrical conidia, most with both apices rounded, developed white gray to dark olive green in a zonate pattern with small dark spots throughout colonies and formed the ascigerous stage in cultures.
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