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Spatio-temporal changes in endogenous abscisic acid contents during etiolated growth and photomorphogenesis in tomato seedlings

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    0473413 - ÚEB 2017 RIV US eng J - Journal Article
    Humplík, Jan - Turečková, Veronika - Fellner, Martin - Bergougnoux, V.
    Spatio-temporal changes in endogenous abscisic acid contents during etiolated growth and photomorphogenesis in tomato seedlings.
    Plant Signaling & Behavior. Roč. 10, č. 8 (2015), č. článku e1039213. ISSN 1559-2316. E-ISSN 1559-2324
    R&D Projects: GA MŠMT(CZ) LO1204
    Institutional support: RVO:61389030
    Keywords : arabidopsis seedlings * blue-light * phytochromes * germination * metabolism * dormancy * barley * seeds * abscisic acid * blue-light * etiolated growth * photomorphogenesis * tomato
    Subject RIV: EB - Genetics ; Molecular Biology

    The role of abscisic acid (ABA) during early development was investigated in tomato seedlings. The endogenous content of ABA in particular organs was analyzed in seedlings grown in the dark and under blue light. Our results showed that in dark-grown seedlings, the ABA accumulation was maximal in the cotyledons and elongation zone of hypocotyl, whereas under blue-light, the ABA content was distinctly reduced. Our data are consistent with the conclusion that ABA promotes the growth of etiolated seedlings and the results suggest that ABA plays an inhibitory role in de-etiolation and photomorphogenesis in tomato.
    Permanent Link: http://hdl.handle.net/11104/0270545

     
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