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Issue: Vol. 774 No. 2: 15 Sept. 2026
Type: Article
Published: 2026-09-15
DOI: 10.11646/phytotaxa.774.2.5
Page range: 159-172
Abstract views: 31
PDF downloaded: 0

Fusarium guiyangense sp. nov. (Nectriaceae, Hypocreales), a novel species from bamboo in China

Department of Plant Pathology; College of Agriculture; Guizhou University; Guiyang; Guizhou 550025; P.R. China
Department of Plant Pathology; College of Agriculture; Guizhou University; Guiyang; Guizhou 550025; P.R. China
Department of Plant Pathology; College of Agriculture; Guizhou University; Guiyang; Guizhou 550025; P.R. China
Department of Plant Pathology; College of Agriculture; Guizhou University; Guiyang; Guizhou 550025; P.R. China
Department of Plant Pathology; College of Agriculture; Guizhou University; Guiyang; Guizhou 550025; P.R. China
Department of Plant Pathology; College of Agriculture; Guizhou University; Guiyang; Guizhou 550025; P.R. China
Fungi 1 new species morphological characteristics molecular analysis taxonomy

Abstract

Fusarium species within the Fusarium incarnatum–equiseti species complex (FIESC) comprise a diverse group of fungi with pathogenic, endophytic, and saprobic lifestyles. During a survey of fungal diversity associated with bamboo in Guiyang City, Guizhou Province, China, a Fusarium species was isolated from dead bamboo culms. Morphological observations combined with multilocus phylogenetic analyses based on calmodulin (cal), RNA polymerase II second largest subunit (rpb2), β-tubulin (tub2), and translation elongation factor 1-alpha (tef1) sequence data demonstrated that the isolates represent a previously undescribed species, Fusarium guiyangense sp. nov. Phylogenetic analyses placed the new taxon as a distinct and well-supported lineage within the FIESC. Morphologically, F. guiyangense is distinguished from its closest relatives by producing macroconidia with a broader septation range (1–8 septa) and consistently forming chlamydospores. The recognition of F. guiyangense expands the known diversity of the FIESC and contributes to a better understanding of species diversity and taxonomy within this complex.

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How to Cite

Zhang, R.-N., Wang, X.-C., Norphanphoun, C., Guo, S.-Q., Wang, S.-B. & Wang, Y. (2026) Fusarium guiyangense sp. nov. (Nectriaceae, Hypocreales), a novel species from bamboo in China. Phytotaxa 774 (2): 159–172. https://doi.org/10.11646/phytotaxa.774.2.5