Sixty Colletotrichum isolates originating from fields producing banana in the municipalities of Vicência, São Vicente Férrer and Machados in the State of Pernambuco were evaluated for physiological, morphological, molecular, cultural, virulence and genetic diversity characteristics. The isolates were identified as C. musae, with most conidia, straight, oblong with rounded summits. The mycelial growth rate ranged from 1.36 to 1.91 cm / day. Three groups of staining for colonies were found: white, cream and salmon, while the presence of sectors ranged from 0 to 8 per isolate, and in most isolates (73.3%) there were the presence of microsclerotia. The difference in virulence was significant for the area under the disease progress curve, indicating variability among isolates. The dendrogram generated by UPGMA analysis of ISSR-PCR markers revealed the formation of three groups by Dice similarity coefficient which correspond mostly to the three sampled areas.
Musa sp.; anthracnose; postharvest disease; morphology; ISSR–PCR
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