Effect of magnesium on free amino acid and polyamine content in wheat seedling exposed to cadmium stress

Leskó, Kornélia and Stefanovits-Bányai, Éva and Simon-Sarkadi, Lívia: Effect of magnesium on free amino acid and polyamine content in wheat seedling exposed to cadmium stress. Acta biologica Szegediensis, (46) 3-4. pp. 109-111. (2002)

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Abstract

The effect of cadmium and combined cadmium and magnesium was examined on wheat seedlings (Triticum aestivum L. cv. Alföld-90). The one-week-old hydroponicallygrown wheat seedlings were exposed to Cd2+ (10-7 M, 10-3 M) and Cd2+ (10-7 M, 10-3 M) + 1 % MgCl2 stresses. Free amino acid content was determined by ion-exchange liquid chromatography. Polyamine content was identified by OPLC (overpressured layer chromatography). The results showed significant differences between the two organs of the plant (root and shoot). The cadmium stress caused typical accumulation of proline in both shoots and roots. Whereas in the samples treated with combined cadmium and magnesium proline content decreased. The magnesium treatment seemed to reduce the negative effects of cadmium in wheat seedlings. With respect to the total free polyamine content, considerable decrease in shoots and increase in roots were found under stress conditions. The major components were agmatine, putrescine and spermidine. Organ-specific changes were found in the case of agmatine.

Item Type: Article
Event Title: Hungarian Congress on Plant Physiology, 7., 2002, Szeged
Journal or Publication Title: Acta biologica Szegediensis
Date: 2002
Volume: 46
Number: 3-4
Page Range: pp. 109-111
ISSN: 1588-385X
Language: angol
Heading title: Abiotic environmental stress; Proceedings of the 7th Hungarian Congress on Plant Physiology
Uncontrolled Keywords: Természettudomány, Biológia
Additional Information: Bibliogr.: 111. p.; Abstract
Date Deposited: 2016. Oct. 17. 09:25
Last Modified: 2018. May. 28. 11:15
URI: http://acta.bibl.u-szeged.hu/id/eprint/22521

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