Content of carotenoids in needles of Pinus sylvestris L. growing in polluted area
2001
Matysiak, R. (Polish Academy of Sciences, Kornik (Poland). Inst. of Dendrology)
Carotenoids prevent the negative influence of free radicals on metabolism and can even repair some of the damages. This is confirmed by results of the author's analysis. Grown from seed colected in north-eastern Poland, the trees grow in relatively unpolluted control site, and in a polluted site located 2 km for away from the Phosphorus Fertilizer Works. In the polluted site the environment is contaminated with SO2, NOx and F, Al, Pb, Cu. The needles analysed in the study were visually undamaged. Material was collected in experimental plots from 6 trees in October '98 and April '99, between 10 and 13 o'clock at full sunlight. The pigments were analysed quantitatively and qualitatively . The paper presents results of the content and distribution of neoxanthin, violaxanthin, lutein and beta-carotene of Scots pine needles from healthy control and stressed trees. Marked differences in pigment levels depended on the stage of needle development and level of pollution
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