@ARTICLE{TreeBASE2Ref18500, author = {Ratchadawan Cheewangkoon and Pedro W. Crous and Kevin D Hyde and Johannes (Ewald) Zacharias Groenewald and Chaiwat To-Anan}, title = {Species of Mycosphaerella and related anamorphs on Eucalyptus leaves from Thailand}, year = {2008}, keywords = {}, doi = {10.3767/003158508x370857}, url = {}, pmid = {}, journal = {Persoonia}, volume = {21}, number = {}, pages = {77--91}, abstract = {Eucalyptus is a substrate that supports highly diverse fungal taxa, many of which remain undescribed. Several Mycosphaerella species and related anamorphs also represent potentially serious foliar pathogens of Eucalyptus. The microfungi treated in the present study were isolated from symptomatic Eucalyptus leaves collected in Thailand during June-October 2007. Species were initially identified based on morphological and cultural characteristics. Identifications were confirmed using comparisons of DNA sequence data of the internal transcribed spacers (ITS1, 5.8S nrDNA, ITS2) and the 28S nrDNA (LSU) regions. To help distinguish species of Pseudocercospora, the dataset was expanded by generating partial sequences of the translation elongation factor 1-? and actin genes. By integrating the morphological and molecular datasets, five new taxa are distinguished, namely Mycosphaerella pseudomarksii, M. irregularis, M. quasiparkii, Pseudocercospora chiangmaiensis and Penidiella eucalypti. New records for Thailand include M. vietnamensis and M. heimii.} }

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