S-Propenylcysteine Sulfoxide in Exudates of Onion Roots and Its Possible Decompartmentalization in Root Cells by Bacteria into Attractant of the Onion Maggot, Hylemya antiqua (Diptera : Anthomyiidae)

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概要

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• The contents of S-propenylcysteine sulfoxide (PCSO) in roots and exudates of aseptic onion seedlings, and the total root bacteria counts in septic seedlings were all higher in cultivars that are susceptible to the onion maggot, Hylemya antiqua MEIGEN, than in the resistant ones. In addition, more propylthio oviposition attractants were generated in the susceptible cultivars. In aseptic soil where bacterial metabolism was impossible, PCSO accumulated.In vitro metabolism of the PCSO extract of onion by bacteria produced more methylthio compounds than propylthio compounds, which was in contrast to allinase metabolism in chopped onions. Since intact septic onion seedlings generated these compounds in intermediate proportions, it is suggested that both bacterial metabolism of exudates in soil and activation of alliinase by bacterial decompartmentalization are simultaneously taking place in the onion rhizosphere.

• 日本応用動物昆虫学会の論文
• 1984-05-25

著者

• IKESHOJI Toshiaki

  Applied Entomology, Faculty of Agriculture, University of Tokyo

• Ikeshoji Toshiaki

  Applied Entomology Laboratory Faculty Of Agriculture University Of Tokyo

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• Correlation between the Susceptibility of Onion Cultivars to the Onion Maggor, Hylemya antiqua MEIGEN (Diptera : Anthomyiidae), and the Biochemical Characteristics of Onion Plant
• Field Trapping of the Onion and Seed-Corn Flies with Baits of Fresh and Aged Onion Pulp
• Behavioral and EAG Synergism of Varous Compounds to Dipropyl Disulfide in the Ovipositional Attraction of the Onion Fly : Hylemya antiqua MEIGEN : Diptera : Anthomyiidae
• Cephalic sensory Organs of the Onion Fly Larva, Hylemya antiqua MEIGEN (Diptera : Anthomyiidae)Responsible for Host-Plant Finding
• A Propylthio Moiety Essential to the Oviposition Attractant and Stimulant of the Onion Fly, Hylemya antiqua MEIGEN
• S-Propenylcysteine Sulfoxide in Exudates of Onion Roots and Its Possible Decompartmentalization in Root Cells by Bacteria into Attractant of the Onion Maggot, Hylemya antiqua (Diptera : Anthomyiidae)

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