Reactive Species Responsible for Inactivating the Ice-nucleating Activity of Pseudomonas fluorescens KUIN-1 by an Ascorbic Acid-Cu(II)Ion System(Pesticide Chemistry)
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概要
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The reactive species for inactivating the ice-nucleating activity of Pseudomonas fluorescens KUIN-1 by copper salt in the presence of an ascorbic acid were investigated. Strain KUIN-1, ascorbic acid and copper salt were allowed to react for 3hr at 18℃, the ice-nucleating activity of this strain being markedly inactivated in the ascorbic acid-Cu(II) ion system. The scavengers for hydrogen peroxide prevented inactivation of the ice-nucleating activity of strain KUIN-1 by the ascorbic acid-Cu(II) ion system. The ice-nucleating activity of strain KUIN-1 was inactivated in a hydrogen peroxide-generating system, but not in a hydroxyl radical-generating system. The superoxide anion radical had a small effect on inactivating the ice-nucleating activity of strain KUIN-1. The degree of freezing injury to corn treated with the ascorbic acid-Cu(II) ion system and strain KUIN-1 was lower than that of corn treated with only strain KUIN-1.
- 社団法人日本農芸化学会の論文
- 1988-08-23
著者
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Obata Hitoshi
Faculty of Bioresources, Mie University
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Tokuyama T
Kansai Univ. Osaka Jpn
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MORIGUCHI Yasuyuki
Faculty of Engineering, Kansai University
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TOKUKAWA Tai
Faculty of Engineering, Kansai University
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Obata Hitoshi
Faculty Of Agriculture Mie University
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Tokukawa Tai
Faculty Of Engineering Kansai University
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Moriguchi Yasuyuki
Faculty Of Engineering Kansai University
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