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Movement to bark and metabolism of xylem cytokinins in stems of Lupinus angustifolius

Zhang, R; Letham, D Stuart; Willcocks, David


Following uptake of [3H]zeatin riboside and [3H]dihydrozeatin riboside by girdled lupin (Lupinus angustifolius L.) stems via the transpiration stream, rapid lateral movement of the radioactivity from xylem to bark was observed. Short-term studies with intact stems, and other studies with excised stem tissues, revealed that the ribosides and/or the corresponding nucleotides were the cytokinin forms which actually moved into the bark tissues. Relative to cytokinin metabolism in xylem plus pith,...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
Source: Phytochemistry
DOI: 10.1016/S0031-9422(02)00085-7


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