Australasian Plant Pathology (2003) 32, 533-538

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Son-Quang Dinh, Julapark Chongwungse, Patchara Pongam and Somsiri Sangchote (2003)
Fruit infection by Colletotrichum gloeosporioides and anthracnose resistance of some mango cultivars in Thailand
Australasian Plant Pathology 32 (4), 533-538
Abstract: Infection of mango fruit cv. Nam Dok Mai by Colletotrichum gloeosporioides was studied using artificial inoculation. Under optimum conditions (95-100% RH, 25°C), germination and appressorium formation started at 12 h and 14 h, respectively, after deposition of conidia on the peel. After 48 h, 60% of fungal propagules present were appressoria. The fungus could infect mangoes through both pedicel and peel wounds, causing stem end rot and anthracnose in ripe fruit. Inoculation of wounded peel resulted in symptom development in unripe fruit whereas unwounded peel showed no symptoms. Resistance of fruits to disease depended on cultivar. Testing of fruit resistance to the fungus could be conducted by inoculation of fruit at 24 h after harvesting. When inoculated at both pre- and post-harvest stages, mango cvv. Nam Dok Mai, Nang Klang Wan and Chok Anan were found to be susceptible to anthracnose whereas Rad and Kaew were relatively resistant.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Son-Quang Dinh

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
general biology - morphology - evolution

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Colletotrichum gloeosporioides Mango (Mangifera indica) Thailand