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First report of powdery mildew on zinnia, blue torenia, dahurian patrinia and scoparia caused by genus Euoidium in Japan

  • Fungal Diseases
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Abstract

Zinnia, blue torenia, dahurian patrinia, and scoparia were found to be affected by powdery mildews from 2006 to 2008 in Tokyo. Abundant white, powdery colonies were observed to grow on the stems and leaves of each plant species resulting in chlorosis and eventual dieback of infected leaves and stems. Based on the morphological characteristics of the strain from each plant species, the causal agents were determined to belong to the genus Euoidium and pathogenicity to each original host was confirmed through inoculation experiments. This is the first report of Euoidium infection on these four plant species in Japan.

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Acknowledgments

This work was supported in part by a Grant-in-Aid for Scientific Research (C) (No. 18580046) from the Ministry of Education, Science, Sports and Culture of Japan.

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Authors and Affiliations

  1. Tokyo Metropolitan Agriculture and Forestry Research Center, 3-8-1 Fujimi-cho, Tachikawa, Tokyo, 190-0013, Japan

    Hideo Hoshi

  2. Department of Liberal Arts and Sciences, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan

    Yukio Sato

  3. Faculty of Bioscience and Applied Chemistry, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo, 184-8584, Japan

    Satoshi Kagiwada & Hiromichi Horie

Authors
  1. Hideo Hoshi
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  2. Yukio Sato
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  3. Satoshi Kagiwada
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  4. Hiromichi Horie
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Correspondence to Hideo Hoshi.

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Hoshi, H., Sato, Y., Kagiwada, S. et al. First report of powdery mildew on zinnia, blue torenia, dahurian patrinia and scoparia caused by genus Euoidium in Japan. J Gen Plant Pathol 79, 89–95 (2013). https://doi.org/10.1007/s10327-012-0425-3

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  • DOI: https://doi.org/10.1007/s10327-012-0425-3

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