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Diaporthe rostrata, a novel ascomycete from Juglans mandshurica associated with walnut dieback

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Abstract

Diaporthe rostrata sp. nov., collected from Juglans mandshurica in China, is described and illustrated in this paper. The new species is introduced based on its holomorphic morphology plus support from phylogenetic analysis. The sexual and asexual morphs produce rostrate host tissue around the necks on infected branches or twigs and have aseptate alpha conidia, while the sexual morph produces 1-septate ascospores. The new species is compared with other taxa from Juglans spp.

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Acknowledgments

This study was financed by the National Natural Science Foundation of China (31170603) and the Fundamental Research Funds for the Central Universities (BLYJ201404). The authors would like to thank Chungen Piao and Minwei Guo (China Forestry Culture Collection Center (CFCC), Chinese Academy of Forestry, Beijing) for support of strains preservation in this study.

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Authors and Affiliations

  1. The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing, 100083, China

    Xin-Lei Fan & Cheng-Ming Tian

  2. International Fungal Research & Development Centre, The Research Institute of Resource Insects, Chinese Academy of Forestry, Bailongsi, Kunming, 650224, China

    Kevin D. Hyde & Dhanushka Udayanga

  3. Institute of Excellence in Fungal Research, and School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand

    Kevin D. Hyde & Dhanushka Udayanga

  4. Forest Diseases and Pest Control & Quarantine Station of Qinzhou District, Tianshui, Gansu, 741000, China

    Xing-Yu Wu

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  1. Xin-Lei Fan
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  2. Kevin D. Hyde
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  3. Dhanushka Udayanga
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  4. Xing-Yu Wu
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  5. Cheng-Ming Tian
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Correspondence to Cheng-Ming Tian.

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Section Editor: Gerhard Rambold

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Fan, XL., Hyde, K.D., Udayanga, D. et al. Diaporthe rostrata, a novel ascomycete from Juglans mandshurica associated with walnut dieback. Mycol Progress 14, 82 (2015). https://doi.org/10.1007/s11557-015-1104-5

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  • DOI: https://doi.org/10.1007/s11557-015-1104-5

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