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Acuminatispora palmarum gen. et sp. nov. from mangrove habitats

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Abstract

Fungi play a vital role as decomposers in mangrove ecosystems. A new ascomycete species, Acuminatispora palmarum, inhabiting decayed petioles and rachides of palms in mangrove habitats, is introduced in this paper based on morphological and phylogenetic evidence. Phylogenetic relationships of related taxa were inferred from combined LSU, SSU, TEF1α, and RPB2 sequence data, and the analyses indicate that A. palmarum could be recognized as a distinct group in Pleosporales, but its familial placement needs to be further resolved. The morphological characters of this new taxon are also different from other members in Pleosporales by its deeply immersed ascomata, long pedicellate asci, and biseriate to triseriate, 1-(rarely 3) septate, brown, fusiform ascospores with acute or narrowly pointed ending cells. Acuminatispora gen. nov. (Pleosporales, incertae sedis) is therefore established to accommodate the new taxon A. palmarum. Furthermore, phylogenetic relationships of Acrocordiopsis and Caryospora are discussed with a consideration of morphological observations.

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Acknowledgements

The staffs of Ngao Mangrove Forest Research Center are thanked for their assistance in samples’ collection. Jian-Kui Liu thanks the National Natural Science Foundation of China (NSFC 31600032) and Science and Technology Foundation of Guizhou Province (LH [2015]7061). The authors also would like to thank Dr. Shaun Pennycook (Manaaki Whenua Landcare Research, New Zealand) for providing advice on fungal nomenclature. Ning-Guo Liu is acknowledged for assisting in molecular experiments.

Funding

We are grateful to the Thailand Research Fund (TRF) Grant (No. RSA5980068) for supporting collection and research facilities.

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Correspondence to Jian-Kui (Jack) Liu.

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Section Editor: Gerhard Rambold

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Zhang, SN., Hyde, K.D., Gareth Jones, E.B. et al. Acuminatispora palmarum gen. et sp. nov. from mangrove habitats. Mycol Progress 17, 1173–1188 (2018). https://doi.org/10.1007/s11557-018-1433-2

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  • DOI: https://doi.org/10.1007/s11557-018-1433-2

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