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Characterization of Pythium nunn newly recorded in Japan and its antagonistic activity against P. ultimum var. ultimum

  • Disease Control
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Abstract

Two isolates of Pythium nunn, newly recorded in Japan, were obtained from soils in Nagano and Fukuoka prefectures, characterized, and tested for antagonistic activity against P. ultimum var. ultimum. The morphology of both isolates corresponded with those of the original description of P. nunn. The rDNA-ITS sequences of the two isolates were identical to each other and had a high similarity with the sequences of the type strain of P. nunn. The two P. nunn isolates were mycoparasitic toward P. ultimum var. ultimum and suppressed damping off of cucumber seedlings caused by the pathogen at an early stage of plant growth.

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Authors and Affiliations

  1. Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan

    Sakura Kobayashi & Motoaki Tojo

  2. Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan

    Shihomi Uzuhashi & Makoto Kakishima

Authors
  1. Sakura Kobayashi
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  2. Shihomi Uzuhashi
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  3. Motoaki Tojo
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  4. Makoto Kakishima
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Correspondence to Motoaki Tojo.

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Kobayashi, S., Uzuhashi, S., Tojo, M. et al. Characterization of Pythium nunn newly recorded in Japan and its antagonistic activity against P. ultimum var. ultimum . J Gen Plant Pathol 76, 278–283 (2010). https://doi.org/10.1007/s10327-010-0244-3

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