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The role of auxins in somatic embryogenesis of Abies alba

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    SYSNO ASEP0367372
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleThe role of auxins in somatic embryogenesis of Abies alba
    Author(s) Vondráková, Zuzana (UEB-Q) RID, ORCID
    Eliášová, Kateřina (UEB-Q) RID, ORCID
    Fischerová, Lucie (UEB-Q) RID, ORCID
    Vágner, Martin (UEB-Q) RID, ORCID
    Source TitleCentral European Journal of Biology - ISSN 1895-104X
    Roč. 6, č. 4 (2011), s. 587-596
    Number of pages10 s.
    Languageeng - English
    CountryPL - Poland
    KeywordsAuxin inhibitor ; Fir ; Phytohormone
    Subject RIVEF - Botanics
    R&D ProjectsOC 158 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    CEZAV0Z50380511 - UEB-Q (2005-2011)
    UT WOS000290803200013
    DOI10.2478/s11535-011-0035-7
    AnnotationWe report the effects of the synthetic auxin 2,4-dichlorophenoxyacetic acid (2,4-D) and the auxin inhibitor p-chlorophenoxyisobutyric acid (PCIB) on the endogenous level of the auxin indole-3-acetic acid (IAA) and on the anatomical composition of early somatic embryos of Abies alba (European silver fir). The embryogenic suspensor mass (ESM) of Abies alba proliferated on a medium supplemented by 2,4-D as well as on an auxin-free medium. The endogenous level of IAA was significantly higher in the ESM cultivated on a medium supplemented by 2,4-D. The decrease in the endogenous level of IAA in the first week of maturation is one of the most important stimuli responsible for the subsequent development of embryos. Suppression of IAA synthesis by an auxin inhibitor did not stimulate the development of embryos. The maturation of somatic embryos from the globular to the cotyledonary stage occurs when the concentration of endogenous auxin in the ESM (including the embryos) increases.
    WorkplaceInstitute of Experimental Botany
    ContactDavid Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469
    Year of Publishing2012
Number of the records: 1  

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