Počet záznamů: 1

The contents of amino acids and sterols in maize plants growing under different nitrogen conditions

  1. 1.
    0348492 - UEB-Q 2011 RIV CZ eng J - Článek v odborném periodiku
    Pavlík, Milan - Pavlíková, D. - Balík, J. - Neuberg, M.
    The contents of amino acids and sterols in maize plants growing under different nitrogen conditions.
    Plant, Soil and Environment. Roč. 56, č. 3 (2010), s. 125-132 ISSN 1214-1178
    Grant CEP: GA MZe 1G58027; GA MŠk 2B06024
    Výzkumný záměr: CEZ:AV0Z50380511
    Klíčová slova: plant metabolism * ammonium nutrition * phytosterol
    Kód oboru RIV: GD - Hnojení, závlahy, zpracování půdy
    Impakt faktor: 1.076, rok: 2010
    www.agriculturejournals.cz/publishedArticle?journal=PSE&volume=56&firstPage=125

    The effect of nitrogen nutrition on phytosterol and amino acid content in aboveground biomass of maize was investigated in a pot experiment.For cultivation of maize plants nitrogen dose(2 or 4 g N per pot) was applied in the form of ammonium nitrate (AN) for control treatments or urea ammonium nitrate solution (UAN).UAN solution was applied according to the CULTAN method (Controlled Uptake Long Term Ammonium Nutrition). The content of amino acids as important nitrogen-containing compounds in plant biomass was affected by nitrogen nutrition. The increases of glutamine and asparagine levels in maize aboveground biomass were observed after UAN solution application. The results of free ß-sitosterol analyses by HPLC showed its 94 % increasing concentration after UAN application in contrast to AN treatments. Our results confirmed that sterol interconversions are controlled by environmental conditions and they are involved in the regulation of membrane properties in response to changing growth conditions.
    Trvalý link: http://hdl.handle.net/11104/0189017