Response of the pigment system of conifers to long-term industrial air pollution

Response of the pigment system of conifers to long-term industrial air pollution To estimate the response of conifers to long-term industrial air pollution at the pigment system level, the dynamics of photosynthetic pigments have been studied in needles of Scots pine (Pinus sylvestris L.) and Siberian spruce (Picea obovata Ledeb.) growing at different distances from the emission source (a pulp and paper mill). It has been shown that the pigment apparatus of spruce. The results show that in spruce, unlike in pine, the pigment apparatus remains unchanged under the effect of weak pollution. Long-term exposure at high levels of industrial emission results in suppression of chlorophyll and carotenoid syntheses in pine but stimulates pigment production in spruce. An increase in the contents of pigments in the needles of conifers growing in the impact zone of the pulp and paper mill reflects a compensatory mechanism of adaptation of their pigment system to long-term stress exposure. Russian Journal of Ecology Springer Journals

Response of the pigment system of conifers to long-term industrial air pollution

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Copyright © 2009 by Pleiades Publishing, Ltd.
Life Sciences; Ecology; Environment, general
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