Wound healings in cultivated plants : I. Wound penetration of the pathogenic bacteria of potato tuber

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  • Koba Saburo
    Laboratory of Plant Pathology, Faculty of Agriculture, Kyushu University

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  • 負傷植物の治癒反応に関する研究 : I. 馬鈴薯の負傷よりの経過時間と病原細菌の侵入
  • 負傷植物の治癒反応に関する研究-1・2-
  • フショウ ショクブツ ノ チユ ハンノウ ニ カンスル ケンキュウ 1 2

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Cut pieces of potato tubers were preserved at a temperature of 30℃ and humidity of 85～97 % for 8 days. The whole surfaces of wounded parts were covered with wound cork, and healed perfectly. Then the tops of the pieces of potato tubers were cut again, and about 0.2 cc of water suspensions either of Erwinia aroideae, Pseudomonas solanacearum or Corynebacterium sepedonicum was inoculated with pipetts at one hour intervals. Experimental data are shown in Table 1 to Table 6. The penetration of pathogenic bacteria from the wound of potato tuber became considerably difficult 8 hours after wounding.

馬鈴薯は, 立枯病菌, 軟腐病菌, 輪腐病菌の傷からの侵入に対して, 温度25～30℃, 湿度95%前後であれば, 負傷後7～8時間目には,防衛反応を起し, 病原細菌の感染からまぬかれる.

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