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Taxonomic and phylogenetic characterizations reveal three new species of Mendogia (Myriangiaceae, Myriangiales)

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Abstract

Three new Mendogia species are introduced, two from bamboo and one from a palm, with descriptions and illustrations. These three new taxa were placed in the genus Mendogia based on superficial, flattened, centrally raised, multi-loculate, round to elliptical, black ascostromata, (6–)8(–10)-spored, subglobose to cylindric-clavate asci and muriform ascospores. The three Mendogia species are similar in morphology, but can be distinguished by the size and number of septa of their ascospores and presence or lack of mucilaginous sheath. The new species, Mendogia calami, is introduced as it differs in having ellipsoidal to obovoid or clavate ascospores with 7 transverse septa and 1 longitudinal septum. Morphological comparisons, maximum-likelihood, and Bayesian inference analyses of ITS, LSU, SSU, TEF1-α sequence data support M. chiangraiensis and M. yunnanensis as distinct new species.

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Acknowledgment

We acknowledge Biology Experimental Center, Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences for providing the facilities of molecular laboratory. Shaun Pennycook is thanked for the nomenclatural clarification of the new species. We also thank the Swedish Museum of Natural History (S) for kind help on loaning the herbarium specimens for taxonomic study.

Funding

We appreciate the Mushroom Research Foundation, Chiang Rai, Thailand and Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (grant no. QYZDY-SSW-SMC014) for supporting this research. Kevin D. Hyde thanks the Foreign Experts Bureau of Yunnan Province, Foreign Talents Program (2018; grant no. YNZ2018002), Thailand Research grants entitled Biodiversity, phylogeny and role of fungal endophytes on above parts of Rhizophora apiculata and Nypa fruticans (grant no: RSA5980068), the future of specialist fungi in a changing climate: baseline data for generalist and specialist fungi associated with ants, Rhododendron species and Dracaena species (grant no: DBG6080013), Impact of climate change on fungal diversity and biogeography in the Greater Mekong Subregion (grant no: RDG6130001). Peter E Mortimer would like to thank the National Science Foundation of China and the Chinese Academy of Sciences for financial support under the following grants: 41761144055, 41771063, and Y4ZK111B01. Samantha C. Karunarathna thanks CAS President’s International Fellowship Initiative (PIFI) for funding his postdoctoral research (number 2018PC0006) and the National Science Foundation of China (NSFC) for funding this work under the project code 31750110478. Rungtiwa Phookamsak thanks CAS President’s International Fellowship Initiative (PIFI) for young staff (grant no. 2019FYC0003), the Yunnan Provincial Department of Human Resources and Social Security (grant no. Y836181261), and National Science Foundation of China (NSFC) project code 31850410489 for financial support.

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Authors and Affiliations

  1. Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand

    Hong-Bo Jiang, Rungtiwa Phookamsak, Samantha C. Karunarathna & Kevin D. Hyde

  2. CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People’s Republic of China

    Hong-Bo Jiang, Rungtiwa Phookamsak, Jianchu Xu, Peter E. Mortimer & Kevin D. Hyde

  3. School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand

    Hong-Bo Jiang

  4. World Agroforestry Centre, East and Central Asia, 132 Lanhei Road, Kunming, 650201, People’s Republic of China

    Hong-Bo Jiang, Rungtiwa Phookamsak, Jianchu Xu & Samantha C. Karunarathna

  5. Centre of Mountain Ecosystem Studies, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, People’s Republic of China

    Hong-Bo Jiang, Rungtiwa Phookamsak, Jianchu Xu, Samantha C. Karunarathna & Peter E. Mortimer

  6. Institute of Animal Science, State Key Laboratory of Animal Nutrition, Chinese Academy of Agricultural Sciences, Beijing, 100193, People’s Republic of China

    Jianchu Xu & Samantha C. Karunarathna

  7. Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand

    Samantha C. Karunarathna

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  1. Hong-Bo Jiang
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Correspondence to Kevin D. Hyde.

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Jiang, HB., Phookamsak, R., Xu, J. et al. Taxonomic and phylogenetic characterizations reveal three new species of Mendogia (Myriangiaceae, Myriangiales). Mycol Progress 19, 41–51 (2020). https://doi.org/10.1007/s11557-019-01540-z

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