Genetics of the peroxidase isoenzymes in Petunia : 9. Immunological investigation into differential expression of prxA alleles.

Antibodies were raised against the peroxidases encoded by the allele prxA1 to determine the specific activities of the peroxidases encoded by the alleles prxA1, prxA2, prxA3, and prxA5. The results from double diffusion experiments indicated that all peroxidases encoded by the four alleles are antigenically identical. By rocket immuno electrophoresis it was shown that the peroxidases encoded by the alleles prxA1, prxA2, prxA3, and prxA5 have different specific activities. The results presented are discussed in relation to differential expression of the alleles involved.