Promotion of Indoleacetic Acid Oxidase Isoenzymes in Tobacco Callus Cultures by Indoleacetic Acid
Open Access
- 1 July 1971
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 48 (1) , 56-59
- https://doi.org/10.1104/pp.48.1.56
Abstract
Indoleacetic acid oxidase in tobacco callus cultures (Nicotiana tabacum L., cv. White Gold) was composed of at least two groups of isoenzymes, which were distinctly different in electrophoretic mobilities and in responses to growth substances. Indoleacetic acid had dual effects; at low concentrations it promoted the development of two fast-migrating indoleacetic acid oxidase isoenzymes, but at high concentrations it increased the level of other indoleacetic acid oxidase isoenzymes with low and moderate electrophoretic mobilities. However, indoleacetic acid was not unique in such effects; 2,4-dichlorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid were effective at concentrations lower than that of indoleacetic acid.Keywords
This publication has 6 references indexed in Scilit:
- Cytokinin-controlled Indoleacetic Acid Oxidase Isoenzymes in Tobacco Callus CulturesPlant Physiology, 1971
- DISC ELECTROPHORESIS – II METHOD AND APPLICATION TO HUMAN SERUM PROTEINS*Annals of the New York Academy of Sciences, 1964
- The oxidation of indolyl-3-acetic acid by waxpod bean root sap and peroxidase systemsBiochemical Journal, 1955
- Flavoprotein and peroxidase as components of the indoleacetic acid oxidase system of peasArchives of Biochemistry and Biophysics, 1953
- Hydrogen Peroxide in the Enzymic Oxidation of HeteroauxinAustralian Journal of Biological Sciences, 1951
- COLORIMETRIC ESTIMATION OF INDOLEACETIC ACIDPlant Physiology, 1951