Species identification of blackcurrant anthracnose agent Colletotrichum floriniae Marcelino & Gouli
2021
A first Russian isolate of the anthracnose fruit rot-causing Colletotrichum fungus was obtained from blackcur rant of Moscow and Bryansk regions. In the Bryansk Region, Colletotrichum sp. was isolated from berries of ten blackcur rant varieties, including Bagira, Mriya, Mriya-5, Selechenskaya, Litvinovskaya, Nadina, Nara, Yadrenaya, Sofievskaya and Ben Hopen. The Colletotrichum genus fungi were observed on Sadko and Bryanskiy Agat blackcurrants in the Moscow Region and on Dobrynya and Yadrenaya — at the Timiryazev Academy station in Moscow. Colletotrichum species endure mainly on mummified persistent blackcurrant berries in a viable form for over two years. Saprotrophic yeast-like fungiof the genera Cryptococcus and Rhodotorula largely compound the blackcurrant-infesting micromycete flora, aside to the hyphomycete Auerobasidium pullans and related genera Penicillium, Fusarium, Alternaria and Cladosporium. Some of these fungi are antagonistic to suppress the Colletotrichum genus fungi. A standard PCR sequencing was employed for the species identification of two Colletotrichum isolates from Bryansk and Moscow regions. Both isolates were found to represent the same species Colletotrichum fioriniae Marcelino & Gouli.
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