期刊
MYCOLOGIA
卷 105, 期 4, 页码 861-872出版社
TAYLOR & FRANCIS INC
DOI: 10.3852/12-346
关键词
Ascomycota; Diaporthaceae; Diaporthales; pathogen; scaly tree fern; systematics
类别
资金
- Taiwan Forestry Research Institute [1002101010508-080203G5]
- Taiwan Forestry Bureau [TFBC-1010506]
- National Science Council of Taiwan [NSC 101-2621-B-001-001-MY3]
The scaly tree fern, Cyathea lepifera, in Taiwan has been devastated by an ascomycetous pathogen in recent years. This fungus resembles species of Diaporthe, but unlike anamorphs of Diaporthe that produce two types of conidia, its anamorph produces one conidium type. It is described herein as Ophiodiaporthe cyatheae gen. et sp. nov. Through pathogenicity tests, O. cyatheae was demonstrated to be the causal agent of the C. lepifera wilt disease. Of interest, sporulating structures of O. cyatheae have not been found on C. lepifera plants but in culture thus far. The mating system is homothallic Phylogenetic analyses based on combined sequences of nSSU-rDNA, nLSU-rDNA, EF1-alpha-1 and RPB2 placed O. cyatheae in Diaporthaceae. Combined sequences of EF1-alpha-2 and TUB indicated that O. cyatheae had its origin within Diaporthe.
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