ACTIVITY AND RELATIVE MOBILITY OF PEROXIDASE AND ESTERASE ISOZYMES OF FLAX (LINUM USITATISSIMUM) GENOTROPHS. I. DEVELOPING MAIN STEMS

Abstract

The effects of growth of one flax genotype in soil supplemented by either nitrogen, phosphorous and potassium (NPK) or nitrogen and potassium (NK) on its progeny produced by several generations of complete selfing were studied. The two types of progeny produced, L induced by NPK and S induced by NK, were examined at 4-day intervals from the 16th to the 36th day after sowing. Both activity and relative mobility of the anionic peroxidase and esterase isozymes displayed effects of the fertilizer treatments applied in the treatment generation. NPK, compared to NK, increased the relative mobility of all the peroxidase and esterase isozymes, while depressing the activities of the peroxidase isozymes and increasing those of the esterase isozymes, at all ages examined. Some differences in the rates of change, with age, of the characteristics of L and S were distinguished; the differences observed between L and S could not, however, be attributed to differences in their developmental ages.