Suppressive effects of <i>Pythium oligandrum</i> on soybean damping off caused by <i>P. aphanidermatum</i> and <i>P. myriotylum</i>

  • You Xiaodong
    Graduate School of Life and Environmental Sciences, Osaka Prefecture University
  • Barraud Joffroy
    University Institute of Technology La Rochelle
  • Tojo Motoaki
    Graduate School of Life and Environmental Sciences, Osaka Prefecture University

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  • Suppressive effects of Pythium oligandrum on soybean damping off caused by P. aphanidermatum and P. myriotylum

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<p>A strain of Pythium oligandrum isolated from soybean, grown in a commercial field in Osaka, Japan, was characterized by species identification and suppression of soybean damping off caused by P. aphanidermatum and P. myriotylum. The morphology and hyphal growth temperature of the P. oligandrum strain corresponded with those of the original description of P. oligandrum. rDNA-ITS sequences of the P. oligandrum strain were highly matched to those of the type strain of the species. The P. oligandrum strain was mycoparasitic toward P. aphanidermatum and P. myriotylum, and significantly suppressed soybean damping off caused by them. This is the first report of the effectiveness of P. oligandrum on soybean damping off pathogens.</p>

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