Cytokinin-Active Ribonucleosides in Phaseolus RNA
Author(s) -
Cynthia A. Edwards,
D. J. Armstrong
Publication year - 1981
Publication title -
plant physiology
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.67.6.1185
Subject(s) - phaseolus , transfer rna , cytokinin , biology , biochemistry , rna , botany , auxin , gene
The distribution of cytokinin-active ribonucleosides in tRNA species from etiolated Phaseolus vulgaris L. seedlings has been examined. Phaseolus tRNA was fractionated by benzoylated diethylaminoethyl-cellulose and RPC-5 chromatography, and the distribution of cytokinin activity was compared with the distribution of tRNA species expected to correspond to codons beginning with U. Phaseolus tRNA(Cys), tRNA(Trp), tRNA(Tyr), a major peak of tRNA(Phe), and a large fraction of tRNA(Leu) were devoid of cytokinin activity in the tobacco bioassay. Cytokinin activity was associated with all fractions containing tRNA(Ser) species and with minor tRNA(Leu) species. In addition, several anomalous peaks of cytokinin activity that could not be directly attributed to U group tRNA species were detected.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom