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Variations de l'activité des auxines-oxydases dans les racines duLens

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Summary

2, 4-dichlorophenol (DCP), 2, 4-dinitrophenol (DNP) and 2, 4-dinitro-o-cresol (DNC) applied at a concentration of 1.10−7 to 1.10−3 M, produce a dramatic increase in IAA-oxidase activity in young cells ofLens root. IAA destruction by ‘breis’ from root tissues was inhibited by Mn++ ion at low concentrations of DCP (1·10−∞ to 1.10−7 M), but was enhanced by Mn++ ion at higher (1.10−5 to 1.10−3 M) DCP levels.

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Authors and Affiliations

  1. Institut de Botanique, Université de Lausanne, Switzerland

    P. E. Pilet

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  1. P. E. Pilet
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Ce travail a pu être entreprise grâce à l'appui duFonds national suisse pour la Recherche scientifique.

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Pilet, P.E. Variations de l'activité des auxines-oxydases dans les racines duLens. Experientia 13, 35–37 (1957). https://doi.org/10.1007/BF02156952

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