果実の微量エチレンの生合成

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書誌事項

タイトル別名
  • Biosynthesis of Trace-Ethylene in Some Fruits.
  • カジツ ノ ビリョウ エチレン ノ セイゴウセイ

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説明

To demonstrate whether system I ethylene is synthesized via the ACC (1-aminocyclopropane-1-carboxylic acid) -ethylene pathway, as well as system II ethylene, toma-to and mume fruits at preclimacteric stage and cucumber fruit were treated with aminooxy-acetic acid (AOA), a competitive inhibitor of ACC synthase, and salicylic acid (SA), an inhibitor of ethylene forming enzyme (EFE).<BR>1. In the intact fruits of tomato and mume, the production rate of system I ethylene was inhibited effectively by the absorption of AOA and/or SA through peduncles. ACC content was decreased by the treatment with AOA, and increased by SA. Similar results were also obtained when tissue slices were used.<BR>2. In the cucumber fruit segments, synthesis of system 1 ethylene was inhibited marked-ly by vacuum-infiltration with AOA and/or SA. ACC content in the segments was decreased by the treatment with AOA, and increased by SA.<BR>3. In intact tomatoes harvested during the climacteric stage, exposure to 45°C complete-ly inhibited EFE activity and ethylene synthesis. However, the same treatment administered to fruits at the preclimacteric stage reduced system I ethylene to less than 50% of control fruits.<BR>The data suggest that most of the ethylene evolved by systems I and II is synthesized via the ACC-ethylene pathway.

収録刊行物

  • 園芸学会雑誌

    園芸学会雑誌 61 (1), 199-204, 1992

    一般社団法人　園芸学会

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