Xepicula yifeii sp. nov. caused a leaf blight of Lasia spinosa (Araceae) in South China karst

Eleven coelomycetous fungi were isolated from diseased leaves of Lasia spinosa (Araceae) in Guangxi Province, China. These isolates produced sporodochial and myrothecium-like conidiomata. Multi-gene analyses (ITS, LSU, cmdA , rpb2 , tub2 and tef1 ) showed that these isolates belonged to Xepicula gro...

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Bibliographic Details
Published in:European journal of plant pathology 2020-09, Vol.158 (1), p.121-134
Main Authors: Zhang, Qian, Wijayawardene, Nalin N., Hyde, Kevin D., Wang, Yong, Pan, Xue-Jun
Format: Article
Language:English
Subjects:
Agriculture
Araceae
Biomedical and Life Sciences
Blight
Ecology
Fungi
In vivo methods and tests
Inoculation
Karst
Lasia
Leaf blight
Leaves
Life Sciences
New species
Pathogenicity
Pathogens
Plant Pathology
Plant Sciences
Setae
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Summary:Eleven coelomycetous fungi were isolated from diseased leaves of Lasia spinosa (Araceae) in Guangxi Province, China. These isolates produced sporodochial and myrothecium-like conidiomata. Multi-gene analyses (ITS, LSU, cmdA , rpb2 , tub2 and tef1 ) showed that these isolates belonged to Xepicula group with a close relationship to X. leucotricha , but formed an independent branch with high bootstrap support. These isolates represent a new species of Xepicula that can be distinguished mainly by setae that are longer than the three other known species. Based on both morphological and molecular analyses, the new species, X. yifeii sp. nov., is described. Further, pathogenicity tests of in vitro and in vivo inoculation experiments showed that X. yifeii is pathogenic to Lasia spinosa leaves.
ISSN:0929-1873
1573-8469
DOI:10.1007/s10658-020-02060-3