Morphological and pathogenic diversity of strains of Colletotrichum sp. responsible for anthracnose of mangoes in Côte d'Ivoire.
N'Guettia M. Y., Diallo H. A., Kouassi N., Felix C.
Author Affiliation: Laboratoire de Biologie et Amélioration des Productions Végétales, Université Nangui Abrogoua, 02 BP 801 Abidjan 02, Côte d'Ivoire.
Journal of Animal and Plant Sciences (JAPS) 18 : 2775-2784
Abstract : Anthracnose disease is a major biotic constraint of marketing mangoes in Côte d'Ivoire. The objective of this study is to identify Colletotrichum species associated to anthracnose symptoms on post-harvest mangoes in Côte d'Ivoire. Samples of 30 mangoes with characteristic symptoms of anthracnose disease were collected from Abidjan markets. Identification of Colletotrichum sp. strains was based on morphological, pathogenic characteristics and colonies development. The results showed that the fungus Colletotrichum gloeosporioides is responsible for the symptoms observed on mangoes. C. gloeosporioides showed great variability in the characters studied. Strains were characterized by white and gray colonies, cylindrical conidia with average length varied from 14.08 to 18.66µm and a width from 5.16 to 6.29µm. The pathogenicity test showed the presence of pathotypes within C. gloeosporioides strains.