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Issue: Vol. 672 No. 2: 20 Nov. 2024
Type: Article
Published: 2024-11-20
DOI: 10.11646/phytotaxa.672.2.4
Page range: 176-186
Abstract views: 25
PDF downloaded: 2

Alternaria youyangensis sp. nov. (Ascomycota: Pleosporaceae) from leaf spot of Fagopyrum esculentum in China

Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou 434025, China. Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou 434025, China.
Yangtze University
Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou 434025, China. Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou 434025, China.
Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou 434025, China. Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou 434025, China.
Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou 434025, China. Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou 434025, China.
Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agriculture Sciences, Changchun 130112, China.
Morphology Novel species Phylogenetic analysis Small-spored Alternaria Taxonomy Fungi

Abstract

Alternaria is a widely distributed fungal genus as saprophytes, endophytes, and pathogens. An Alternaria species was isolated from the leaf spot of Fagopyrum esculentum in Banxi Town, Youyang County, Chongqing municipality, China. The obtained strains were determined based on morphological characteristics and multi-locus phylogenetic analyses including the internal transcribed spacer (ITS) of the rDNA region, glyceraldehyde-3-phosphate dehydrogenase (GAPDH), translation elongation factor 1-alpha (TEF1), RNA polymerase second largest subunit (RPB2), a major Alternaria allergen (Alt a 1), endopolygalacturonase (EndoPG) and an anonymous region gene (OPA10-2) gene sequences. The results indicate that the present species is a novel species, which is described and illustrated as Alternaria youyangensis sp. nov. in this study.

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