Antioxidant enzyme activities in Allium species and their cultivars under water stress

J. Csiszár, E. Lantos, I. Tari, E. Madoşă, B. Wodala, Á. Vashegyi, F. Horváth, A. Pécsváradi, M. Szabó, B. Bartha, Á. Gallé, A. Lazăr, G. Coradini, M. Staicu, S. Postelnicu, S. Mihacea, G. Nedelea and L. Erdei
Additional contact information
J. Csiszár: Department of Plant Biology, University of Szeged, Szeged, Hungary
E. Lantos: Department of Plant Biology, University of Szeged, Szeged, Hungary
I. Tari: Department of Plant Biology, University of Szeged, Szeged, Hungary
E. Madoşă: Institute of Plant Biotechnology, Banat's University of Agricultural Sciences, Timisoara, Romania
B. Wodala: Department of Plant Biology, University of Szeged, Szeged, Hungary
Á. Vashegyi: Department of Plant Biology, University of Szeged, Szeged, Hungary
F. Horváth: Department of Plant Biology, University of Szeged, Szeged, Hungary
A. Pécsváradi: Department of Plant Biology, University of Szeged, Szeged, Hungary
M. Szabó: Department of Plant Biology, University of Szeged, Szeged, Hungary
B. Bartha: Department of Plant Biology, University of Szeged, Szeged, Hungary
Á. Gallé: Department of Plant Biology, University of Szeged, Szeged, Hungary
A. Lazăr: Institute of Plant Biotechnology, Banat's University of Agricultural Sciences, Timisoara, Romania
G. Coradini: Institute of Plant Biotechnology, Banat's University of Agricultural Sciences, Timisoara, Romania
M. Staicu: Institute of Plant Biotechnology, Banat's University of Agricultural Sciences, Timisoara, Romania
S. Postelnicu: Institute of Plant Biotechnology, Banat's University of Agricultural Sciences, Timisoara, Romania
S. Mihacea: Institute of Plant Biotechnology, Banat's University of Agricultural Sciences, Timisoara, Romania
G. Nedelea: Institute of Plant Biotechnology, Banat's University of Agricultural Sciences, Timisoara, Romania
L. Erdei: Department of Plant Biology, University of Szeged, Szeged, Hungary

Plant, Soil and Environment, 2007, vol. 53, issue 12, 517-523

Abstract: We compared the enzymatic antioxidative defence mechanisms of some regional subspecies of Allium (A. cepa L., A. ascalonicum auct. hort., A. sativum L.) cultivated mainly in the western regions of Romania, and two modern Hungarian climate resistant F 1 hybrids. The variability in the activities of antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), glutathione reductase (GR) and glutathione S-transferase (GST) and their changes under soil moisture stress were investigated. 1-week-long water stress revealed that among three Allium species, relative water content decreased only in A. ascalonicum leaves (up to 16%). Unlike root enzymes, the activities of the shoot enzymes, especially POD, GR and GST showed a stronger correlation with the water content of the leaves after one week of water withdrawal; regression coefficients (R2) were 0.359, 0.518 and 0.279, respectively. The ancient populations with elevated (or highly inducible) antioxidant enzyme activities may be interesting for further research and for breeding of new Allium varieties.

Keywords: Allium species; superoxide dismutase; catalase; guaiacol peroxidase; glutathione reductase; glutathione S-transferase; drought stress; genetic diversity (search for similar items in EconPapers)
Date: 2007
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://pse.agriculturejournals.cz/doi/10.17221/2192-PSE.html (text/html)
http://pse.agriculturejournals.cz/doi/10.17221/2192-PSE.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:53:y:2007:i:12:id:2192-pse

DOI: 10.17221/2192-PSE

Access Statistics for this article

Plant, Soil and Environment is currently edited by Mgr. Kateřina Součková

More articles in Plant, Soil and Environment from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().