Bacterial brown spot on Avena storigosa Schereb. caused by Pseudomonas syringae pv. alisalensis
2013
Ishiyama, Y. (Nagano Vegetable and Ornamental Crops Experiment Station, Shiojiri, Nagano (Japan)) | Yamagishi, N. | Ogiso, H. | Fujinaga, M. | Takikawa, Y.
Avena storigosa Schereb. (bristle oat) is used as a green manure in crop rotations and as an antagonist of nematodes in Nagano Prefecture, Japan. In 2011, necrotic, brown, water-soaked lesions were observed on young bristle oat plants. A pathogenic bacterium was isolated from symptomatic leaves of infected plants and produced the same symptoms after inoculation. Bacteriological properties of the bacterial isolates from bristle oat matched those of Pseudomonas syringae pathovars. The host range of the bristle oat isolates was identical to that of P. syringae pv. alisalensis. This is the first report of bristle oat disease caused by P. syringae pv. alisalensis.
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