Effects of application of sucrose and cytokinin to roots on the formation of tuberous roots in sweetpotato (Ipomoea batatas (L.) Lam.)

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    25 被引用数 (Scopus)

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    Effects of sucrose and cytokinin (trans-zeatin riboside [t-ZR]) on the formation of tuberous root of sweetpotato (Ipomoea batatas (L.) Lam.) were studied by directly applying these substances to young roots. In the roots that originally contained approximately 9 μ endogenous sucrose per milligram of fresh weight (FW), further increase in the sucrose level did not necessarily result in tuberous root formation, whereas t-ZR application invariably induced tuberous root formation. However, t-ZR did not induce morphogenesis when the sucrose level in the root was lowered to approximately 2 μg mg-1 of FW. Our results imply that high levels of endogenous sucrose are necessary for tuberous root formation and that in the presence of high sucrose concentrations, cytokinins can trigger tuberous root formation. Copyrights 2008, Plant Root (JSRR).

    本文言語英語
    ページ(範囲)7-13
    ページ数7
    ジャーナルPlant Root
    2
    DOI
    出版ステータス出版済み - 3 18 2008

    All Science Journal Classification (ASJC) codes

    • 農業および作物学
    • 生化学、遺伝学、分子生物学(全般)
    • 植物科学

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