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The effect of arsenic contamination on amino acids metabolism in Spinacia oleracea L
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SYSNO ASEP 0349939 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The effect of arsenic contamination on amino acids metabolism in Spinacia oleracea L Author(s) Pavlík, Milan (UEB-Q) RID, ORCID
Pavlíková, D. (CZ)
Staszková, L. (CZ)
Neuberg, M. (CZ)
Kaliszová, R. (CZ)
Száková, J. (CZ)
Tlustoš, P. (CZ)Source Title Ecotoxicology and Enviromental Safety. - : Elsevier - ISSN 0147-6513
Roč. 73, č. 6 (2010), s. 1309-1313Number of pages 5 s. Language eng - English Country US - United States Keywords Chronic stress ; Delta(1)-pyrroline-5-carboxylate synthetase ; Soil contamination Subject RIV CB - Analytical Chemistry, Separation R&D Projects GA521/09/1150 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000281822200028 DOI 10.1016/j.ecoenv.2010.07.008 Annotation Changes of amino acid concentrations (proline, glutamate, asparagine, aspartate, alanine) and glutamate kinase activity (GKA) in plants under arsenic chronic stress reported here reveal their role in plant arsenic stress adaptation. Results of the pot experiment confirmed the toxic effect of arsenic at tested levels (As1=25, As2=50, As3=75 mg As kg-1 soil) for spinach. Growing available arsenic contents in soil were associated with the strong inhibition of above-ground biomass and with the enhancement of As plant content. The changes of glutamate, asparagine, aspartate and proline levels in the plants showed strong linear dependences on arsenic concentration in plants (R2=0.60-0.90). Compared to the untreated control, concentrations of free proline and aspartate of As3 treatment were enhanced up to 381 % and 162 %, respectively. The significant changes of glutamate were observed on As2 and As3 treatments (increased level up to 188, respectively 617 %). Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2011
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