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© 1972 Oxford University Press

RESEARCH-ARTICLE

Changes in Distribution of Acid-Phosphatase Activity During Wound Regeneration in Coleus

D. T. JONES and T. A. VILLIERS

Department of Plant Biology, University of Natal Durban, South Africa

Changes in the pattern of distribution of acid-phosphatase activity were followed during the period of regeneration and wound-vessel formation in Coleus internodes. The activity of this enzyme was associated with three phases of wound regeneration, the first of which was detected only in the damaged surface cells during the first few days after wounding. The second phase was associated with the undamaged cells immediately surrounding the wound and this travelled gradually inwards from the wound surface to the deeper tissues as a wave of activity during regeneration. This activity preceded cell division in the zone around the wound and was not detectable once the new cell walls had formed. The third phase was associated with the differentiation of cells of the new vascular tissues which formed around the wound connecting the original severed vascular bundle.


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