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Botrytis sinoallii: a new species of the grey mould pathogen on Allium crops in China

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Mycoscience

Abstract

A study was conducted to identify Botrytis spp. isolated from bulb onion, green onions, garlic, and garlic chives grown in Hubei Province of China. Based on colony morphology and conidial characteristics, 367 strains of Botrytis spp. were identified as five distinct species, namely, B. cinerea, B. squamosa, B. porri, B. byssoidea, and an undescribed Botrytis species (Botrytis sp.), which accounted for 64.3, 29.9, 3.3, 0.3, and 2.2%, respectively. The previously undescribed species is herein described as a new species, B. sinoallii sp. nov., which is characterized by production of numerous small sclerotia on potato dextrose agar. Phylogenetic analysis using partial sequences of three nuclear genes (G3PDH, HSP60, and RPB2) showed that B. sinoallii forms a unique lineage, which is closely related to B. squamosa, a well-known species on Allium crops, but distantly related to the other species of Botrytis on Allium crops, including B. cinerea, B. porri, B. aclada, B. allii, B. byssoidea, B. globosa, and B. sphaerosperma. Results of inoculation tests showed that B. sinoallii is a newly identified agent that can cause leaf blight of green onion, garlic, and garlic chives. Potential impact of B. sinoallii on production of Allium crops in China is discussed.

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Acknowledgments

This study was funded by the Natural Science Foundation of China (Grant No. 30570079). The authors greatly appreciate the help from Professor J. Y. Zhuang at the Institute of Microbiology, Chinese Academy of Sciences, Beijing, China, for correcting the Latin description of B. sinoallii, and the help from Mr. M. D. Wu of Huazhong Agricultural University for preparation of the distribution map of Botrytis spp. in Hubei Province, China.

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Author notes

  1. Hung-Chang Huang

    Present address: Plant Pathology Division, Taiwan Agricultural Research Institute, Wufeng, Taichung, 41301, Taiwan

Authors and Affiliations

  1. The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China

    Jing Zhang, Lei Zhang, Guo-Qing Li, Long Yang & Dao-Hong Jiang

  2. The Key Laboratory of Plant Pathology of Hubei Province, Huazhong Agricultural University, Wuhan, 430070, China

    Jing Zhang, Lei Zhang, Guo-Qing Li, Long Yang & Dao-Hong Jiang

  3. Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China

    Wen-Ying Zhuang

  4. Agriculture and Agri-Food Canada, Research Centre, Lethbridge, AB, Canada

    Hung-Chang Huang

Authors
  1. Jing Zhang
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  2. Lei Zhang
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  3. Guo-Qing Li
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Corresponding author

Correspondence to Guo-Qing Li.

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Zhang, J., Zhang, L., Li, GQ. et al. Botrytis sinoallii: a new species of the grey mould pathogen on Allium crops in China. Mycoscience 51, 421–431 (2010). https://doi.org/10.1007/s10267-010-0057-4

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  • DOI: https://doi.org/10.1007/s10267-010-0057-4

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