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Autor(en): Kull, Ulrich
Kühn, Barbara
Schweizer, Jürgen
Weiser, Helmut
Titel: Short-term effects of cytokinins on the lipid fatty acids of green leaves
Erscheinungsdatum: 1978
Dokumentart: Zeitschriftenartikel
Erschienen in: Plant and cell physiology 19 (1978), S. 801-810. URL http://pcp.oxfordjournals.org/content/19/5/801.abstract
URI: http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-90090
http://elib.uni-stuttgart.de/handle/11682/2240
http://dx.doi.org/10.18419/opus-2223
Zusammenfassung: Isolated shoots of Coleus blumei and isolated leaves from this species and from Impatiens sultani were fed zeatin for different periods. High doses of the hormone (100 μg/ml) caused a measurable effect on lipid fatty acid composition after a two-hour feeding period in isolated leaves of Coleus. The maximum effects were at 20–30 μg zeatin taken up per g fresh weight. With the leaves of Impatiens, higher doses of the hormone were needed to obtain optimal effects. In both species, the proportion of linolenic acid increased and that of palmitic acid decreased. For higher concentrations, the reverse was true. The effects of the hormone on the fatty acids of glycolipids were more apparent than on those of phospholipids. The results are discussed in view of the general importance of dose-response curves for cytokinin effects and the possible effects on cell membranes.
Enthalten in den Sammlungen:04 Fakultät Energie-, Verfahrens- und Biotechnik

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