Abstract
One of the promising methods for the integral assessment of the quality of the environment and the vital activity of herbaceous plants is the assessment of the state of living organisms by the morphometric characters development stability. The study revealed an increase in the variability of morphological characters in the plants of lamb's quarters (Chenopodium album) and milk-witch gowan (Taraxacum officinalis) in areas with a high level of technogenic pollution. Phenotypes with smaller sizes of vegetative organs prevailed there, as compared with the area with a low level of pollution. At the same time, viable seeds and seedlings were formed in the plants of urban cenoses.
Highlights
Urbanization affects the plants of urban ecosystems as a stress factor, which manifests itself in changes in individual functions and parameters of plants
We have shown that at a high and medium level of pollution of T. оfficinаle place of growth, the IT indicators of the root length were higher than in the Control variant
In the conditions of the city of Kazan in areas with a high level of technogenic pollution, we noted an increase in the variability of morphological characters in C. album and T. оfficinаle plants and a predominance of phenotypes with smaller sizes of vegetative organs than in plants from the control area
Summary
Urbanization affects the plants of urban ecosystems as a stress factor, which manifests itself in changes in individual functions and parameters of plants. The use of various ecological and physiological indicators of the state of plants is promising in the system of the urban environment phytomonitoring [1, 2, 3]. It is considered, that plants are reliable indicators of environmental pollution by various toxic substances. That plants are reliable indicators of environmental pollution by various toxic substances They are forced to adapt to stressors with the help of physiological and morphological reconstructions of the organism, sinse they are not able to move. Fixation and evaluation of these changes provide a reliable picture of the conditions of the place of growth of plants and reflect the state of the urban environment [4]
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