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Investigations on Cytokinins. IV. The Metabolism of 6‐Benzylaminopurine in Lemna minor
Author(s) -
BEZEMERSYBRANDY SYTSKE M.,
VELDSTRA H.
Publication year - 1971
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.1399-3054.1971.tb01078.x
Subject(s) - cytokinin , lemna , lemna minor , metabolism , lemna gibba , biochemistry , biology , nucleotide , hydrolysate , chemistry , botany , aquatic plant , auxin , ecology , hydrolysis , macrophyte , gene
The metabolism of 14 C‐labeled 6‐benzylaminopurine in aseptic cultures of Lemna minor was investigated. This cytokinin is slowly taken up by the plants; part of it can be released and part of it is rapidly metabolized to several compounds, among which the corresponding nucleotides can be identified. In this connection the feasibility of locating the site of hormone receptors (sites of primary action) in plants is discussed. Incorporation of the labeled cytokinin into Lemna tRNA was not observed, although tRNA hydrolysates, isolated from plants grown on a cytokinin‐free medium, contain a fair amount of cytokinin activity and therefore presumably cy okinin molecules.