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Growth and Sucrose Metabolism of Carrot Callus Strains with Normal and Low Acid Invertase Activity
Author(s) -
PARR D. R.,
EDELMAN J.,
HAWKER J. S.
Publication year - 1976
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1976.tb03962.x
Subject(s) - daucus carota , sucrose , invertase , callus , metabolism , biochemistry , chemistry , biology , botany
The properties of two strains of carrot ( Daucus carota ) callus are presented. One has a very low acid invertase activity which is accompanied by differences in morphology and metabolic rate, but not in growth rate. We conclude that one of the main functions of plant acid invertases is in controlling the levels of sugars which, by interaction with hormones, affect differentiation, both morphological and biochemical. The effect of tris on sucrose metabolizing enzymes, and the cause of the “sucrose effect” are considered.