Variations des activités peroxydasique et phénoloxydasique au cours de la croissance deColeus blumeiBenth. var. Automne
✍ Scribed by Charles Kaminski
- Publisher
- Springer-Verlag
- Year
- 1971
- Tongue
- English
- Weight
- 490 KB
- Volume
- 99
- Category
- Article
- ISSN
- 0032-0935
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✦ Synopsis
The specific peroxidase (1.11.1.7) and phenoloxidase (1.10.3.1) activities are quantitatively measured during the life of Coleus, from germination until flowering. In most organs investigated, the peroxidase activity increases rapidly with growth while the phenoloxidase activity remains low. The latter activity is higher in root apices than in more differentiated regions of roots. From the results obtained it may be concluded that the phenoloxidase activity accompanies cellular proliferation. It is suggested that the peroxidase activity plays an indirect role in root initiation through its role in cellular differentiation. * Extrait d'une th~se de doctorat soutenue s la Faeult6 des Sciences de l'Uni-versit6 de Libge.