CPPU はマスクメロン受粉および未受粉果実の初期生育とインベルターゼ活性を促進する

DOI NDLデジタルコレクション 日本農学文献記事索引 Web Site Web Site 被引用文献3件 参考文献20件

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タイトル別名
  • CPPU Promotes Growth and Invertase Activity in Seeded and Seedless Muskmelons during Early Growth Stage

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We compared the growth and invertase activity of pollinated melon (Cucumis melo L.) fruit and parthenocarpic fruit induced by CPPU [1-(2-chloro-4-pyridyl)-3-phenylurea]. CPPU-treated fruit enlarged from anthesis until the 15th day after anthesis (DAA). However, the growth of parthenocarpic fruit was slower than that of pollinated fruit during the later growth stage. Non-pollinated flowers without the CPPU treatment did not grow ; they wilted within 7 DAA. Acid invertase (AI) and neutral invertase (NI) activities in the ovary rapidly decreased from 0 to 5 DAA, whereas, AI activity in the mesocarp of pollinated and/or CPPU-treated fruit dramatically increased to 5 DAA, it declined as fruit matured. AI activity in CPPU-treated fruit was higher than that of pollinated fruit without the CPPU treatment during the early stage ; but between 25 and 40 DAA, the activity in CPPU-treated non-pollinated fruit was lower than that in the pollinated ones. NI activity was lower than AI activity in the mesocarp in all plots throughout fruit development. The seasonal patterns in NI activity were similar to those of AI activity. There was a close relationship between the growth rate and invertase activity in melon fruit. CPPU noticeably stimulated those activities in mesocarp tissues at anthesis and shortly thereafter.

収録刊行物

  • 園芸学会雑誌

    園芸学会雑誌 70 (3), 299-303, 2001

    一般社団法人　園芸学会

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