Počet záznamů: 1

CHANGES IN ENDOGENOUS CYTOKININ CONCENTRATIONS IN CHLORELLA (CHLOROPHYCEAE) IN RELATION TO LIGHT AND THE CELL CYCLE

  1. 1.
    0368602 - UEB-Q 2012 RIV US eng J - Článek v odborném periodiku
    Stirk, W. A. - van Staden, J. - Novák, Ondřej - Doležal, Karel - Strnad, Miroslav - Dobrev, Petre - Sipos, G. - Oerdoeg, V. - Balint, P.
    CHANGES IN ENDOGENOUS CYTOKININ CONCENTRATIONS IN CHLORELLA (CHLOROPHYCEAE) IN RELATION TO LIGHT AND THE CELL CYCLE.
    Journal of Phycology. Roč. 47, č. 2 (2011), s. 291-301 ISSN 0022-3646
    Grant CEP: GA ČR GA301/08/1649; GA ČR GA206/09/1284
    Výzkumný záměr: CEZ:AV0Z50380511
    Klíčová slova: cell cycle * Chlorella * cis-zeatin * cytokinins * N6-(2-isopentenyl)adenine
    Kód oboru RIV: EF - Botanika
    Impakt faktor: 2.071, rok: 2011

    Endogenous cytokinins were quantified in synchronized Chlorella minutissima Fott et Novakova (MACC 361) and Chlorella sp. (MACC 458) grown in a 14:10 light:dark (L:D) photoperiod. In 24 h experiments, cell division occurred during the dark period, and cells increased in size during the light period. Cytokinin profiles were similar in both strains, consisting of five cis-zeatin (cZ) and three N6-(2-isopentenyl)adenine (iP) derivatives. Cytokinin concentrations were low during the dark period and increased during the light period. In 48 h experiments using synchronized C. minutissima (MACC 361), half the cultures were maintained in continuous dark conditions for the second photoperiod. Cell division occurred during both dark periods, and cells increased in size during the light periods. Cultures kept in continuous dark did not increase in size following cell division.
    Trvalý link: http://hdl.handle.net/11104/0202900