Biosynthesis of Cytokinins in Cytokinin-Autotrophic Tobacco Callus
AUTOR(ES)
Einset, John W.
RESUMO
A cytokinin-autotrophic strain of tobacco callus contained cytokinin-active compounds with chromatographic mobilities on Sephadex LH-20 corresponding to ribosylzeatin, zeatin, and 6-Δ2-isopentenylaminopurine. Zeatin, the apparent major cytokinin, was estimated to be present at a concentration of 10-4 μmol/kg of tissue. Cytokinin-autotrophic callus supplied with [14C]adenine produced radioactive components with the same chromatographic properties as zeatin and 6-Δ2-isopentenylaminopurine. These components were not obtained from cytokinin-dependent tissue supplied with [14C]adenine in the same manner.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=433328Documentos Relacionados
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