Des isoperoxydases spécifiques de racines

Using starch gel electrophoresis, a group of anodic isoperoxidases which is revealed byo-dianisidine (not by guaïcol) in the soluble fraction of roots proteins from lentil, pea, sugarbeet and maize is never found in corresponding extracts from stems. These root specific peroxidases do not show IAA-oxidase activity as revealed byp-dimethylaminocinnamaldehyde on the gels. They could not serve as a rhizogenesis index since they do not appear from the early beginning of root growth.