Počet záznamů: 1

Endogenous cytokinins in Cocos nucifera L. in vitro cultures obtained from plumular explants

  1. 1.
    0359284 - UEB-Q 2011 RIV DE eng J - Článek v odborném periodiku
    Sáenz, L. - Azpeitia, A. - Oropeza, C. - Jones, L. - Fuchsová, Květoslava - Spíchal, Lukáš - Strnad, Miroslav
    Endogenous cytokinins in Cocos nucifera L. in vitro cultures obtained from plumular explants.
    Plant Cell Reports. Roč. 29, č. 11 (2010), s. 1227-1234 ISSN 0721-7714
    Grant CEP: GA ČR GA301/08/1649; GA AV ČR IBS5038351
    Výzkumný záměr: CEZ:AV0Z50380511
    Klíčová slova: Coconut palm * Somatic embryogenesis * Endogenous cytokinins
    Kód oboru RIV: EF - Botanika
    Impakt faktor: 2.279, rok: 2010

    Embryogenic calli and non-embryogenic calli can be formed from the initial calli. Fourteen cytokinins were analysed in the three types of calli and all the cytokinins were found in each type. The most abundant cytokinins in each type of callus were isopentenyladenine-9-glucoside, zeatin-9-glucoside, zeatin riboside, isopentenyladenine riboside, dihydrozeatin and dihydrozeatin riboside in decreasing order. Total cytokinin content was found to be lower in embryogenic calli compared to non-embryogenic calli or initial calli. When explants were cultured in media containing exogenously added cytokinins, the formation of embryogenic calli in the explants was reduced. When 8-azaadenine (an anticytokinin) was added the formation of embryogenic calli and static embryos was increased. These results suggest that the difference in somatic embryo formation capacity observed between embryogenic calli and non-embryogenic calli is related to their endogenous cytokinin contents.
    Trvalý link: http://hdl.handle.net/11104/0197095