Journal of Stress Physiology &
Biochemistry, Vol. 9 No. 1
2013, pp. 66-73 ISSN 1997-0838
Original Text Copyright (cc) 2013 by Hosseini and Poorakbar
ORIGINAL
ARTICLE
Data source : Google Scholar
QueryDate : 2016-12-24
Cites : 4
Zinc toxicity on antioxidative
response in (Zea mays L.) at
two different pH
Zahra Hosseini and Latifeh Poorakbar*
Department of Biology, Faculty of Sciences, Urmia University,
Iran
Phone +989144400987; fax: +98 (441) 2776707
*E-Mail: l.pourakbar@urmia.ac.ir
Received September 22, 2012
Zn is the second
most abundant transition metal after iron (Fe). Excess Zn can have
negative effects on plants. The effect of Zn at two different pH on
lipid peroxidation (MDA), membrane permeability (EC), hydrogen peroxide
(H2O2),non-protein thiols (NPT) and the activities of major antioxidant
enzymes Zea mays were investigated under controlled growth conditions.
Zn-excess conditions increased the EC, MDA, H2O2
content and non-protein thiols and also activities of antioxidant
enzymes were increased. Also zinc toxicity was higher in 4.5 pH than
7.5 pH.
