EFFECTS OF GIBBERELLIN AND AUXIN ON THE EXTENSIBILITY OF THE PEA STEM |
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Authors: | YODA SHIZUKO; ASHIDA JOJI |
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Institution: | Botanical Department, Faculty of Science, Kyoto University Kyoto |
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Abstract: | Excised pieces of etiolated Alaska pea stem were pulled longitudinallyor transversely, and elongation or bending was measured. Pieces treated with IAA were stretched conspicuously when longitudinalforce was applied, and continued elongating under the forceat approximately the same rate as without it. Control piecesbehaved in a similar way, but on a smaller scale. Pieces treatedwith gibberellin scarcely elongated under the force, but elongatedwithout it. IAA-treated stem pieces were bent by transverse force more easily,and gibberellin-treated ones less easily than control. (Received February 1, 1960; ) |
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