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The contents of amino acids and sterols in maize plants growing under different nitrogen conditions
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SYSNO ASEP 0348492 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The contents of amino acids and sterols in maize plants growing under different nitrogen conditions Author(s) Pavlík, Milan (UEB-Q) RID, ORCID
Pavlíková, D. (CZ)
Balík, J. (CZ)
Neuberg, M. (CZ)Source Title Plant, Soil and Environment. - : Česká akademie zemědělských věd - ISSN 1214-1178
Roč. 56, č. 3 (2010), s. 125-132Number of pages 8 s. Language eng - English Country CZ - Czech Republic Keywords plant metabolism ; ammonium nutrition ; phytosterol Subject RIV GD - Fertilization, Irrigation, Soil Processing R&D Projects 1G58027 GA MZe - Ministry of Agriculture (MZe) 2B06024 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000277364300005 Annotation 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. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2011
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