Dynamics of Endogenous Cytokinin Pools in Tobacco Seedlings: A Modelling Approach

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Authors	LEXA Matej GENKOV Todor Nikolaev MALBECK Jiří MACHÁČKOVÁ Ivana BRZOBOHATÝ Břetislav
Year of publication	2003
Type	Article in Periodical
Magazine / Source	Annals of Botany
MU Faculty or unit	Faculty of Science
Citation
Field	Botany
Keywords	Endogenous cytokinins; zeatin; isopentenyladenine; dihydrozeatin; metabolism; mathematical simulation model; Nicotiana tabacum L.; tobacco
Description	Cytokinin metabolites of the adenine type were measured in seedlings of tobacco grown on media supplemented with zeatin, isopentenyladenine or dihydrozeatin. The treatment caused typical cytokinin effects, such as shortening of the primary root and thickening of hypocotyls. These morphological changes were accompanied by accumulation of selected cytokinin species in the tissues of treated seedlings. Content of various forms of cytokinins in the seedlings was measured by LC/MS/MS and compared to values simulated by a mathematical model of cytokinin conversions in plants.
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