ASPECT OF CYTOGENETIC ANALYSIS OF POTATOES MITOSIS UNDER COLCHICINE INFLUENCE

Abstract

This experiment was performed in order to study the changes in cell division, as a result of colchicine influence on potatoes root meristems. Same concentration (0.5%) in four times of exposure (0.5h; 1.0h; 1.5h; 2.0h) along a control (distilled water) for each variant were used with the aim to identify the types of modifications in cells division and chromosomes behavior. Mitotic abnormalities were identified both in the cells from the control material and to those subjected to colchicine influence for shorter and longer time. Percent of normal mitosis decreased once with the increase in time exposure and as mitotic abnormalities were identified chromosomal fragments, chromosomal bridges, micronuclei and C mitosis.