Plant Physiology 51:559-562 (1973)
© 1973 American Society of Plant Biologists
Articles
Cytokinins in Rhizopogon roseolus Secretion of N-[9-( -D-Ribofuranosyl-9H) Purin-6-Ylcarbamoyl]Threonine into the Culture Medium 1
Michel Laloue2 and
Ross H. Hall
a Department of Biochemistry, McMaster University, Hamilton, Ontario, Canada
Rhizopogon roseolus excretes the transfer RNA component, N-[9-( -D-ribofuranosyl-9H) purin-6-ylcarbamoyl]threonine (Ado-CO-thr) into the culture medium. This compound was proposed to be the archetype of ureidopurines exhibiting cytokinin activity. The amount of Ado-CO-thr isolated from the medium is about one-twentieth the amount of ribosylzeatin that can be isolated.
2 Recipient of an exchange scholarship of the Canada Council.
1 This research was supported by the Medical Research Council of Canada (MT-2738).
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