A Histological Study of Anthracnose onCarica papaya

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Abstract
The infection process of Colletotrichum gloeosporoides on papaya (C. papava) fruit was examined via light microscopy and transmission and scanning electron microscopy. Penetration of the cuticle by an infection peg, which was produced by an appressorium, was observed 3-4 days after inoculation. A hypha then formed between the cuticle and the epidermal wall. Mycelium grew intra- and intercellularly, and infected cells eventually separated, collapsed, and formed a sunken lesion that became visible .apprx. 5 days after inoculation. The cuticle of the fruit ruptured during the sporulation process.