Počet záznamů: 1

Endogenous brassinosteroids in wheat treated with 24-epibrassinolide

  1. 1.
    0359303 - UEB-Q 2011 RIV NL eng J - Článek v odborném periodiku
    Janeczko, A. - Swaczynová, Jana
    Endogenous brassinosteroids in wheat treated with 24-epibrassinolide.
    Biologia Plantarum. Roč. 54, č. 3 (2010), s. 477-482 ISSN 0006-3134
    Grant CEP: GA ČR GA301/08/1649
    Klíčová slova: brassinolide * castasterone * growth response
    Kód oboru RIV: EF - Botanika
    Impakt faktor: 1.582, rok: 2010

    The aim of the study was to examine the effect of exogenous 24-epibrassinolide on its uptake and content of endogenous brassinosteroids in wheat seedlings. 24-Epibrassinolide was applied at two concentrations (0.1 and 2.0 mu M) and in three different methods: by soaking seeds, by drenching and by spraying plants. Brassinosteroids were determined by high-performance liquid chromatography combined with electrospray mass spectrometry. Three important brassinosteroids, 24-epibrassinolide, brassinolide and castasterone, were detected in the wheat leaves, but their contents varied with leaf insertion and plant age. Increased 24-epibrassinolide content in the leaf tissue was found when this hormone was applied by soaking or drenching. Additionally the seed treatment influenced brassinosteroid balance in seedlings. The growth response of wheat seedlings treated with 24-epibrassinolide has been also investigated.
    Trvalý link: http://hdl.handle.net/11104/0198839