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A new species of the genus Trematosphaeria from China

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Abstract

A new species of the genus Trematosphaeria was isolated and identified from the soil in Jiuzhaigou Nature Reserve, southwestern China. The new taxon was studied based on morphological characters and phylogenetic analyses of three nuclear loci, i.e., the internal transcribed spacer rDNA operon (ITS), and large and small subunit nuclear ribosomal DNA (nuc28S rDNA, nuc18S rDNA). The analyzed Trematosphaeria species were clustered in several clades within the Pleosporales and the genus was shown to be polyphyletic. The new species is introduced as Trematosphaeria terricola, and it is characterized by short-papillate ascomata with suborbicular ostiolum, 3-septate, cinnamon-brown, fusiform ascospores with narrowly rounded ends, verruculose at maturity. Trematosphaeria terricola is compared with morphologically similar species T. confusa, T. mangrovis, and T. pertusa, which differ from the former species in the number of septa, and the shape and size of the ascospores with or without a sheath. This is the first report of a Trematosphaeria isolate from alpine soil in China.

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Acknowledgments

This work was supported by the Project of Youth Sci-tech fund of Sichuan Agricultural University. We are grateful to Dr. Chiyu Chen at National Chung Hsing University for helping to identify our fungus; to two anonymous reviewers for good proposals to improve this manuscript; to Dr. Xiaoli Chang, Xiaobo Qi, Jia Yao, Zhixiang Chen and all the members of our lab at Sichuan Agricultural University, for supporting the investigation, research work and manuscript modification.

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Authors and Affiliations

  1. Department of Plant Pathology, College of Agriculture, Sichuan Agricultural University, Chengdu, 611130, People’s Republic of China

    You Zhou, Guoshu Gong, Na Liu, Jingjing Wang & Peili Li

  2. College of Resources and Environment, Sichuan Agricultural University, Chengdu, 611130, People’s Republic of China

    Shirong Zhang & Xiumei Yu

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  1. You Zhou
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  2. Guoshu Gong
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  3. Shirong Zhang
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  4. Na Liu
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  5. Jingjing Wang
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  7. Xiumei Yu
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Correspondence to Guoshu Gong.

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Zhou, Y., Gong, G., Zhang, S. et al. A new species of the genus Trematosphaeria from China. Mycol Progress 13, 33–43 (2014). https://doi.org/10.1007/s11557-013-0889-3

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  • DOI: https://doi.org/10.1007/s11557-013-0889-3

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