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Issue: Vol. 644 No. 3: 16 Apr. 2024
Type: Article
Published: 2024-04-16
DOI: 10.11646/phytotaxa.644.3.3
Page range: 201-210
Abstract views: 41
PDF downloaded: 2

Colletotrichum xishanense as a new etiological anthracnose agent on Fagopyrum gracilipes in Yunnan Province, China

College of Life Science, Capital Normal University, Beijing, China
College of Life Science, Capital Normal University, Beijing, China
College of Life Science, Capital Normal University, Beijing, China
College of Life Science, Capital Normal University, Beijing, China
Colletotrichum multi-locus phylogeny pathogenicity plant pathogens Fungi

Abstract

Buckwheat (Fagopyrum spp.) is an important agricultural crop in some remote regions of China. In this study, two strains of Colletotrichum were isolated from brown and grey-white spots on the leaves of Fagopyrum gracilipes in Yunnan Province, China. Phylogenetic analyses inferred from combined ITS, act, chs-1, cal, gapdh, apmat, gs, and tub2 sequences revealed that these isolates are a new species, belonging to the C. gloeosporioides species complex and therefore we introduce as Colletotrichum xishanense. Pathogenicity tests indicated that C. xishanense infects not only herbaceous plant but also woody plant. Given the broader host range and stronger pathogenicity, it is time to focus on disease management and resistance breeding.

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