Summary
Amo 1618 inhibits germination and root growth of Lentil seedlings in the dark and in the light, with some symptoms of toxicity; CCC has no effect.
Both CCC and Amo 1618 inhibit the catalase activity of a lentil root extract.
Increasing concentrations of Amo 1618 progressively increase the activity of peroxidase and IAA-oxidase in vivo; the catalase activity remains unchanged.
The effect of Amo 1618 on root growth can thus be explained by a diminished auxin level mediated by an increased auxin catabolism.
The effect of Amo 1618 and that of kinetin on root growth and enzymes are parallet. Gibberellic acid has an opposite effect on auxin catabolism.
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Une partie de ce travail a fait l'objet du mémoire de Licence de J. L. et a été réalisée au Laboratoire de Biochimie végétale de l'Institut de Botanique de Liège.
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Lacoppe, J., Gaspar, T. Action du CCC et de l'Amo 1618 sur la germination, la croissance et les activités AIA-oxydasique, peroxydasique, catalasique in vitro et in vivo de la racine de la Lentille. Planta 80, 27–33 (1968). https://doi.org/10.1007/BF00387186
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DOI: https://doi.org/10.1007/BF00387186