On mycobiota of fruit, vegetable, ornamental crops and weeds in China (results of 2017 expedition)

Abstract

Samples of plants damaged with fungi were collected on the Hainan Island in vicinities of the Hainan branch of Jilin Agricultural Academy (Foluo) on 15-16.11.2017. Some samples were also collected in glasshouse farms of the Jilin Province on 12 and 16.11.2017. 40 species of fungi from Zygomycota, Ascomycota, Basidiomycota and Mitosporic fungi group are identified. Some species from Oomycota are also identified. The revealed microorganisms are registered on 36 species of plants from 36 genera, 26 families. In glasshouse farms of the Jilin Province, the most widespread and harmful diseases on vegetable cultures are false mildew of cucumber (Pseudoperonospora cubensis) and powdery mildew of pepper (Leveillula taurica), and also wilt of tomato, eggplant and pepper (Fusarium oxysporum, Verticillium dahliae). In an open ground on Hainan Island, cucumber false mildew and wilt of pepper are the most harmful. Mango leaf spot and dieback (complex of causal agents Colletotrichum gloeosporioides, Lasiodiplodia theobromae, Botryosphaeria dothidea, Pestalotiopsis mangiferae, Phomopsis sp. and others) and papaya anthracnose (Colletotrichum gloeosporioides) have moderate severity. The collection of pure cultures of micromycetes including 106 isolates of 28 species from 27 genera of Oomycota (1), Zygomycota (2), Basidiomycota (1), Ascomycota (18) and Mitosporic fungi (84) has been created.