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Cytokinin activity of disubstituted aminopurines in Amaranthus
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SYSNO ASEP 0337490 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Cytokinin activity of disubstituted aminopurines in Amaranthus Author(s) Garcia-Raso, A. (ES)
Cabot, C. (ES)
Fiol, J. J. (ES)
Spíchal, Lukáš (UEB-Q) RID, ORCID
Nisler, Jaroslav (UEB-Q) RID, ORCID
Tasada, A. (ES)
Luna, J. M. (ES)
Alberti, F. M. (ES)
Sibole, J. V. (ES)Source Title Journal of Plant Physiology. - : Elsevier - ISSN 0176-1617
Roč. 166, č. 14 (2009), s. 1529-1536Number of pages 8 s. Language eng - English Country PT - Portugal Keywords Benzylaminopurine ; Betacyanin ; CO2 assimilation Subject RIV CE - Biochemistry R&D Projects GD522/08/H003 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000269999600007 DOI 10.1016/j.jplph.2009.03.012 Annotation Cytokinin (CK) receptors have different affinities for certain Ligands, and consequently, studies of the plant's response to CK analogues constitute a good approach to identify active compounds that trigger specific plant responses. In this study, N-6 and N-6 N-6-substituted CK analogues were synthesized and their CK-like activity was examined in the Amaranthus betacyanin and the bacterial. receptor assay. The compounds showed CK-like activities that were not always associated with their binding affinity to the Arabidopsis receptors AHK3 and CRE1/AHK4. The highest level of activity in both bioassays was obtained for the N-6-alkylaminopurines, which showed an especially high binding affinity to AHK3. In contrast to previously published data, we found remarkable activity of N-6,N-6-alkylbenzylaminopurines in the Amaranthus betacyanin bioassay, which was not associated with their binding affinity to the tested receptors. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2010
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