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Issue: Vol. 450 No. 3: 30 June 2020
Type: Article
Published: 2020-06-30
DOI: 10.11646/phytotaxa.450.3.3
Page range: 273–284
Abstract views: 39
PDF downloaded: 3

Fusarium xiangyunensis (Nectriaceae), a remarkable new species of nematophagous fungi from Yunnan, China

Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan 671003, P.R. China. Centre of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan 671003, P.R. China. Key Laboratory of Yunnan State Education Department on Er’hai Lake Basin Protection and the Sustainable Development Research, Dali University, Dali, Yunnan 671003, P.R. China. The provincial innovation team of biodiversity conservation and utility of the three parallel rivers from Dali University, Dali University, Dali, Yunnan 671003, China.
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan 671003, P.R. China. School of Public Health, Dali University, Dali, Yunnan 671003, P.R. China.
Centre of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.
Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P.R. China. Shenzhen Key Laboratory of Laser Engineering College of Optoelectronic Engineering Shenzhen University, Shenzhen, 518060, P. R. China.
Centre of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.
Centre of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan 671003, P.R. China. Key Laboratory of Yunnan State Education Department on Er’hai Lake Basin Protection and the Sustainable Development Research, Dali University, Dali, Yunnan 671003, P.R. China. The provincial innovation team of biodiversity conservation and utility of the three parallel rivers from Dali University, Dali University, Dali, Yunnan 671003, China.
1 new species Adhesive microconidia Endoparasitic nematodes Phylogeny Fungi

Abstract

Fusarium xiangyunensis sp. nov., isolated from hot-spring waterlogged soil in China, which is an endoparasitic fungus of nematodes, is described and illustrated. Evidence for the new species is provided by morphology and phylogenetic analyses of combined ITS, EF-1α and RPB1 sequence data. Phylogenetic analyses showed that F. xiangyunensis clustered with those species belonging to the F. solani species complex and grouped together with F. witzenhausenense. This species differs from F. witzenhausenense in habitat (parasitic on Hibiscus sp.), conidia and chlamydospores. Furthermore, the nematicidal activity of its microconidia was determined and causes infection and death of nematodes in both sterile water and solid medium.