Comparative analysis of stress tolerance in Aegilops accessions and Triticum wheat varieties to detect different drought tolerance strategies

P. Czövek; I. Király; E. Páldi; I. Molnár; L. Gáspár

doi:10.1556/AAgr.54.2006.1.5

Acta Agronomica Hungarica

Volume/Issue:: Volume 54: Issue 1

Comparative analysis of stress tolerance in Aegilops accessions and Triticum wheat varieties to detect different drought tolerance strategies

Authors:

P. Czövek

P. Czövek Department of Plant Physiology and Molecular Plant Biology, Eötvös Loránd University, Budapest, Hungary

Search for other papers by P. Czövek in
Current site
Google Scholar
PubMed

I. Király

I. Király Department of Plant Physiology and Molecular Plant Biology, Eötvös Loránd University, Budapest, Hungary

Search for other papers by I. Király in
Current site
Google Scholar
PubMed

E. Páldi

E. Páldi Agricultural Research Institute of the Hungarian Academy of Sciences Martonvásár, Hungary

Search for other papers by E. Páldi in
Current site
Google Scholar
PubMed

I. Molnár

I. Molnár Agricultural Research Institute of the Hungarian Academy of Sciences Martonvásár, Hungary

Search for other papers by I. Molnár in
Current site
Google Scholar
PubMed

, and

L. Gáspár

L. Gáspár Department of Plant Physiology and Molecular Plant Biology, Eötvös Loránd University, Budapest, Hungary

Search for other papers by L. Gáspár in
Current site
Google Scholar
PubMed

View More View Less

Pages:: 49–60

Online Publication Date:: 10 Apr 2006

Publication Date:: 01 Mar 2006

Article Category:: Research Article

DOI:: https://doi.org/10.1556/AAgr.54.2006.1.5

Keywords:: lipid peroxidation; lipid peroxidation; PEG; MDA; Aegilops biuncialis Vis.; drought stress; drought resistance strategies; oxidative stress; Triticum aestivum L.; SOD

Restricted access

The drought stress tolerance of three accessions of Aegilops biuncialis Vis. (Ae225, Ae550 and Ae1050) and two varieties of Triticum aestivum L. (Sakha and Cappelle Desprez) was compared. The activity of superoxide dismutase (SOD) isoenzymes, which reflects the intensity of oxidative stress, changes in the malonic dialdehyde (MDA) content, formed during the lipid peroxidation induced by stress situations, and the inducibility of electron removal systems appearing as an alternative to CO ₂ fixation were chosen for the present investigations. Drought stress was simulated using polyethylene glycol (PEG). The order of drought stress tolerance obtained correlated well with the original habitats ofthe varieties. The present results provide a clear illustration of the fact that tolerant varieties respond differently for the parameters tested, suggesting that their resistance can be attributed to different mechanisms. Abbreviations:CuZnSOD=superoxide dismutase isoform with Cu and Zn cofactor metals, MnSOD and FeSOD=superoxide dismutase isoform with Mn and Fe cofactor metals, PVP25= polyvinyl pyrrolidone 25, MDA=malonic dialdehyde, PEG=polyethylene glycol, TCA=trichloro acetic acid, TBA=thiobarbituric acid, ΔF=F _m -F _s , F _m =maximal fluorescence yield, F _s =fluorescence yield in steady state

Save
Cite
Email this content

Share Link

Copy this link, or click below to email it to a friend
Email this content
or copy the link directly:

https://akjournals.com/abstract/journals/014/54/1/article-p49.xml
The link was not copied. Your current browser may not support copying via this button.

Link copied successfully

Collapse
Expand

Acta Agronomica Hungarica

Print ISSN:: 0238-0161

Online ISSN:: 1588-2527

Acta Agronomica Hungarica
Language	English Russian German French
Size
Year of Foundation	1950
Publication Programme	ceased
Volumes per Year
Issues per Year
Founder	Magyar Tudományos Akadémia
Founder's Address	H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher	Akadémiai Kiadó
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0238-0161 (Print)
ISSN	1588-2527 (Online)