Abstract
Pestalotiopsis is a common and important plant-associated pathogen and endophyte with wide geographical and host distribution. In an investigation of endophytic Pestalotiopsis species associated with Podocarpaceae in China, a new species Pestalotiopsis yunnanensis was isolated from Podocarpus macrophyllus in Kunming, southwestern China. This new species produced pycnidium-like conidiamata in culture, distinct from its morphologically similar species, P. funereoides, P. funerea and P. thujae, which produce acervuli in manual media and hosts. P. yunnanensis also possesses a greater conidium length/width ratio, and longer apical and basal appendages as its distinguishing morphology characters. Phylogenetic analysis of internal transcribed spacer (ITS) sequences showed that P. yunnanensis is a member of Pestalotiopsis, and is distinct from morphologically similar P. funereoides, P. funerea, and P. thujae, as well as other Pestalotiopsis species. A dichotomous key to 26 Pestalotiopsis species occurring on Podocarpus plants is also presented.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (Nos. 30670012, 30970022, and 31100016), Guangxi Natural Science Foundation (2011GXNSFA018078) and the Plans for Construction of Scientific Topnotch and Innovation Team in Guangxi University. We thank Prof. Jian-Yun Zhuang for revising the Latin description. We are grateful to Dr. Jo Taylor, Royal Botanic Gardens Edinburgh, for revising the manuscript.
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Wei, JG., Phan, CK., Wang, L. et al. Pestalotiopsis yunnanensis sp. nov., an endophyte from Podocarpus macrophyllus (Podocarpaceae) based on morphology and ITS sequence data. Mycol Progress 12, 563–568 (2013). https://doi.org/10.1007/s11557-012-0863-5
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DOI: https://doi.org/10.1007/s11557-012-0863-5