Types of Cytogenetic Abnormalities in the Apical Root Meristem of Elodea canadensis from the Yenisei River Areas with Different Types of Anthropogenic Pollution

The change in the spectrum of chromosomal abnormalities in the apical root meristem of Elodea canadensis Michx. (elodea) growing in areas with different types of anthropogenic (radioactive and chemical) pollution of the bottom sediments of the Yenisei River is shown. In the samples of elodea collected in the zone of radioactive contamination of the river by discharges of the Rosatom Mining and Chemical Combine (MCC, Zheleznogorsk), the predominant type of abnormalities consist of chromosomal aberrations (bridges, stickiness, chromosomal fragmentation), as well as multiple abnormalities in one cell. The elodea samples from the areas of the Yenisei River with nonradioactive (chemical) contamination of bottom sediments by the enterprises of the city of Krasnoyarsk are predominantly characterized by abnormalities associated with the disturbance of the mitotic spindle of cell division.