<i>Pseudomonas setariae</i> (Okabe) Savulescuによるブロームグラスおよびホイートグラスの褐条病

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  • Brown Stripe of Bromegrasses and Wheatgrasses Caused by <i>Pseudomonas setariae</i> (Okabe) Savulescu
  • Pseudomonas setariae Okabe Savulescu ニ ヨル グロームグラス オヨビ ホイートグラス ノ カツジョウビョウ

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説明

Bacterial diseases showing light-brown stripes on the foliage were found in bromegrasses (Bromus marginatus, B. catharticus) and wheatgrasses (Agropyron intermedium, A. trichophorum) in Japan. As a result of experiments on bacteriological characters and pathogenicities, the causal organisms were all identified as Pseudomonas setariae (Okabe) Savulescu. It is for the first time that P. setariae was found to attack the above plants under natural conditions. It has been reported that P. setariae can infect various other grasses, such as meadow fescue, velvetgrass, and teosinte, when inoculated by artificial spraying, suggesting a wide host range.<br>Goto et al. (1952) asserted that P. setariae was a synonym of P. panici (Elliott) Stapp. For the time being, however, it seems more reasonable to consider that these species may be two separate ones. Further studies are required to make sufficient evidences favorable for this opinion.

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