Вплив промислового забруднення на гістологічні показники первинної кори стебла представників роду fraxinus l.
Industrial pollution influence on histological indices of stem primary bark of Fraxinus L. genus representatives

Summary/Abstract: The results of investigations of histological characteristics of primary bark of stems of denizen species F. lanceolata Borkh. and F. pennsylvanica Marsh, and F. excelsior L native species under emissions from cocke and chemical industrial enterprize in conditions of steppe Dnipropetrovsk region considered. Phytotoxicants cause increase of thé protection tissues thickness of F. excelsior cork and collenchyme and their reduction in F. lanceolata and F. pennsylvanica due to wich thickness of primary bark increases in the 1st species, reduces in the 2nd and stays similar to the controlled one in F. pennsylvanica as results of treading of bark parenchyma.

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