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Changes in endogenous cytokinins during germination and seedling establishment of Tagetes minuta L.

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F05%3A00002254" target="_blank" >RIV/61989592:15310/05:00002254 - isvavai.cz</a>

  • Alternative codes found

    RIV/61389030:_____/05:00083398

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Changes in endogenous cytokinins during germination and seedling establishment of Tagetes minuta L.

  • Original language description

    Endogenous cytokinins were quantified and identified in germinating achenes and developing seedlings of Tagetes minuta L. incubated at 25 degrees C over a 144 h period. The process of germination (radicle emergence) was completed 38 h after commencementof imbibition. Subsequent growth was considered to cover seedling establishment. Eighteen isoprenoid cytokinins, belonging to the zeatin (9), dihyrozeatin (5) and isopentenyladenine (4) groups and one aromatic cytokinin, benzyladenine, were identified. The total isoprenoid cytokinin concentration increased upon imbibition, reached a peak by 48 h and subsequently decreased with seedling development. The individual cytokinin groups and the respective derivatives within each group did, however, not followsuch a consistent trend. During the course of the experiment, the ribotides and ribosides were present in the highest concentrations, reaching a peak at 48 h and decreasing thereafter. The free bases and O-glucoside remained at low levels

  • Czech name

    Změny v hladinách endogenních cytokininů během doby klíčení a ujmutí semenáčků u Tagetes minuta L.

  • Czech description

    Endogenní cytokininy byly kvantifikovány a identifikovány v klíčících nažkách a vyvíjející semenáčcích Tagetes minuta L. inkubovaných ve 25 °C po dobu 144 h. Bylo identifikováno osmnáct isoprenoidních cytokininů (zeatinové (9), dihyrozeatinové (5) a isopentenyladeninové (4) typy a jeden aromatický cytokinin - benzyladenin). Celková koncentrace isoprenoidních cytokininů byla zvětšená během imbibici, dosáhla maxima 48 h. a následovně byla snížena během vývojem semenáčků. Jednotlivé typy cytokininů a příslušné deriváty neukazovaly tak shodný trend. Ribotidy a ribosidy byly přítomny v nejvyšších koncentracích, volné báse a O - glucosidy zůstávaly v malých koncentracích. Množství isopentenyladenin 9-glukosid dramaticky narůstalo a benzyladenin byl přítomenve vysokých koncentracích v suchých nažkách.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    EF - Botany

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Plant Growth Regulation

  • ISSN

    0167-6903

  • e-ISSN

  • Volume of the periodical

    47

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    7

  • Pages from-to

    1-7

  • UT code for WoS article

  • EID of the result in the Scopus database