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Issue: Vol. 425 No. 5: 12 December 2019
Type: Article
Published: 2019-12-12
DOI: 10.11646/phytotaxa.425.5.1
Page range: 259–268
Abstract views: 26
PDF downloaded: 2

Diaporthe sinensis, a new fungus from Amaranthus sp. in China

 

Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, China. Agricultural Experiment Station, Zhejiang University, Hangzhou 310058, Zhejiang, China.
Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, China.
Xiaoshan Agricultural Technology Extension Center, Hangzhou 311203, Zhejiang, China.
Zhejiang Plant Protection and Quarantine General Station, Hangzhou 310004, Zhejiang, China.
Zhejiang Agricultural Products Quality and Safety Center, Hangzhou 310021, Zhejiang, China.
Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, China.
Diaporthe phylogeny taxonomy Fungi

Abstract

During an exploration of plant pathogens in vegetables occuring in Zhejiang province, China, a novel fungal species, was found. Three strains ZJUP0033-4, ZJUP0038-3 and ZJUP0132 were isolated from black round lesions in the stems and leaves of Amaranthus sp. Phylogenetic analyses based on sequences from four genes including rDNA internal transcribed spacer (ITS), translation elongation factor 1-α (EF1-α), histone (HIS) and β-tubulin (TUB) indicated that D. sinensis clustered in a distinct clade closely related to D. neoarctii, D. angelicae, D. subordinaria, D. arctii, D. cuppatea, D. lusitanicae, D. novem, D. infecunda, D. ganjae and D. manihotia. Morphologically, D. sinensis is distinguished by brown, scattered, globose pycnidia and ellipsoid alpha conidia with bi- to multiguttulate.