Abstract
The influence of industrial pollutants on the intensity of lipid peroxidation in the assimilatory organs of arboreal plant was investigated. The differential changes of the probed indexes are set depending on the species. Information is got can testify to participation of lipid peroxidation products in forming of reactions-answers of arboreal plants on influence of industrial dust borne extract with content of heavy metals. Determination of level and rates of accumulation of Zn, Ni, Pb and Cd, in the leaves of arboreal plants in the conditions of different contamination level allowed to take species to two groups. To the first (phytoextraction potential exceeds a base-line level in 10 times) belong Populus bolleana Lauche, P. italica (Du Roi) Moench, Picea pungens Engelm and Sorbus aucuparia L. To the second (exceeds a base-line level from 5 to 10 times) belong Acer negundo L., Aesculus hippocastanum L., Betula pendula Roth and Tilia cordata Mill. The most substantial increase of peroxidation secondary product content (more than in 2.5 times) is peculiar for B. pendula, A. hippocastanum and P. pungens Engelm., that well conforms to the rates of heavy metals translocation, it has however species-specific character.
Highlights
Anthropogenic contamination of region in high-urbanized ecosystems results to varied violations of living organism functioning, and above all things plants
MATERIALS AND METHODS The objects of researche were Populus bolleana Lauche, P. italica (Du Roi) Moench, Picea pungens Engelm., Acer negundo L., Tilia cordata Mill., Sorbus aucuparia L., Betula pendula Roth, Aesculus hippocastanum L., that grow on industrial ground «Red Lead Factory» LTD and in the arboretum of the Kryvyi Rig Botanic Garden of the National Academy of Sciences of Ukraine, which is accepted for conditional control
According to the analysis of pollutant content contained in plants to the arboretum of the Kryvyi Rig Botanic Garden of the National Academy of Sciences of Ukraine in the phase of complete isolation of leaf is more intensive accumulated in the leaves of Acer negundo L., while in the Populus bolleana Lauche, P. italica (Du Roi) Moench and Tilia cordata Mill. on 36-45% less
Summary
Anthropogenic contamination of region in high-urbanized ecosystems results to varied violations of living organism functioning, and above all things plants. Among the effects of toxic influence this pollutants on plant organisms displacement of prooxidative-antioxidative equilibrium comes into the special notice in the side of intensification of lipid peroxidation (Bishnoi et al.,1993; Lichtanthaler,1998; Naoharu et al, 2003; Tang - Xi, 2002), exactly activation of lipids peroxidation processes – one of key links between the action of a stress factor and realization of protective reactions of organism (Finkel-Holbrook, 2000; Wang, 2004; Karperts-Kolupaev, 2008). Coming from that lipid peroxidation products are the determination indexes of character and intensity of a heavy metals stress on living organisms, the purpose of our work was to probe the features of Zn, Pb, Cd and Ni accumulation and dynamics of lipid peroxidation process changes, in the assimilatory agent of arboreal plants at industrial terms
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