日木で発生したニンジンしみ腐病(2)培養と同定

書誌事項

タイトル別名
  • Brown-blotted root rot of carrots in Japan. 2. Culture and identification.
  • 日本で発生したニンジンしみ腐病-2-培養と同定〔英文〕
  • ニホン デ ハッセイシタ ニンジン シ

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抄録

A Pythium species (isolates A-1 and A-4) obtained from diseased carrot roots with water-soaked brown blot-like symptoms in Chiba Prefecture is slow in growth rate and it has specific pathogenicity only limited to carrot roots. It is morphologically characterized by formation of globose, subglobose or peanut-shaped hyphal swellings and predominantly single monoclinous clavate, crook-necked or various-shaped antheridia with transverse furrows and folds. This fungus was identified as P. sulcatum Pratt and Mitchell based on morphological and physiological characteristics.

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