Abstract
Four new species and two new host records of Torula (Torulaceae, Pleosporales) are described and illustrated from herbaceous litter collected in Italy and Thailand. The new species possess colony, conidiophore and conidial characteristics that fit within the generic concept of Torula. Detailed morphological observations clearly demarcate four of these from extant species and are hence described as new (Torula chiangmaiensis sp. nov., Torula pluriseptata sp. nov., Torula chromolaenae sp. nov., Torula mackenziei sp. nov.). Details of asexual morphs are described, and justifications for establishing these new species are provided. The nuclear are sequenced ribosomal RNA genes as well as protein coding genes to infer phylogenetic relationships and discuss phylogenetic affinities with morphologically similar species. Our morphological distinction is further supported by phylogenetic discrimination. In particular, phylogenies depict a close relationship of Torula chiangmaiensis and T. pluriseptata to T. hollandica, while T. chromolaenae and T. mackenziei constitute an independent phylogenetic lineage basal to T. herbarum and T. ficus. Torula ficus and T. masonii are also described and their phylogeny investigated as new host records from Bidens pilosa and Iris germanica, respectively.
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Acknowledgements
We are grateful to the Mushroom Research Foundation and Thailand Research Fund (TRF: BRG5280002) for supporting this research, and for MFLU grant number 567110754 to support Hyphomycetes studies. Prof. Kevin D. Hyde thanks the Chinese Academy of Sciences (project no. 2013T2S0030) for the award of Visiting Professorship for Senior International Scientists at Kunming Institute of Botany. Dr. Rungtiwa Phookamsak expresses sincere appreciation for the CAS President’s International Fellowship for Postdoctoral Researchers, project number 2017 PB0072, for financial support. Ausana Mapook is grateful for financial support provided by Research and Researchers for Industries (RRI) PHD57I0012 under the Thailand Research Fund. Jun-Fu Li thanks Dr. Shaun Pennycook, Dhanushka Wanasinghe, Sirinapa Konta, Qing Tian, Dr. Mingkwan Doilom and Zonglong Luo for their assistance and valuable suggestions. Prof. Darbhe J. Bhat and Dr. Jeewon Rajesh would like to thank Mae Fah Luang University for the opportunities provided to them as visiting professors to the Center of Excellence in Fungal Research. The authors extend their sincere appreciation to the Deanship of Scientific Research at King Saud University for its Prolific Research Group funding (PRG-1436-09).
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This article is part of the “Special Issue in honour of the 70th birthday of Dr. Eric McKenzie”
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Li, JF., Phookamsak, R., Jeewon, R. et al. Molecular taxonomy and morphological characterization reveal new species and new host records of Torula species (Torulaceae, Pleosporales). Mycol Progress 16, 447–461 (2017). https://doi.org/10.1007/s11557-017-1292-2
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DOI: https://doi.org/10.1007/s11557-017-1292-2