[Characteristic of photosynthetic pigments content in leaves (needles) of wood plants in the conditions of Minsk]
2007
Sidorovich, E.A. | Podobed, M.N.,National Academy of Sciences, Minsk (Belarus). Central Botanical Garden
Research results of studies of influence of the industrial pollutants on the content of photosynthetic pigments in assimilation organs of woody and deciduous plants (Colorado spruce (Picea pungens), Norway maple (Acer platanoides), small-leaved linden (Tilia cordata), horse chestnut (Aesculus hippocastanium)) grown on the urban territory of Minsk city (Belarus) were presented. Research results showed that pigment composition in the assimilative tissue of woody plants in the conditions of atmospheric pollution could change both towards the reduction and the increasing of pigments content. Content and correlation of pigments changes in woody plants could become apparent in pigments quantity growth which could be determined by the redundant formation of their predecessors (products of carbohydrates oxidation ) in the conditions of low concentration of pollutants or in pigments quantity reduction caused by the inhibition of biosynthesis in the conditions of high pollution level. Accumulation of chlorophyll in needles of Colorado spruce and in hardwood had the well-marked seasonal character with content peaks in June and July both in urban territories and suburban areas. Lowering of green pigments content in all wood species was noted by the end of vegetation period
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