FEATURES OF THE MORPHO-ANATOMICAL STRUCTURE OF THE LEAF OF FRUIT TREES UNDER THE INFLUENCE OF TECHNOGENIC POLLUTION OF URBAN ECOSYSTEMS

In conditions of complex pollution of urban ecosystems malus domestica Borkh, cydonia oblonga Mill trees demonstrate high sensitivity to pollution, which is expressed by decrease in fertility level of pollen and formation of morphologically uneven pollen grain; in conditions of pollution xerophyllization is increased, cuticle thickens, the height of adaxial epidermis of palisade cells increases, and so does the number of vessels and medial veins.