[Cytogenetic characteristics of seed progeny of trees under condition of antropogenic contamination in Voronezh town].
It has been shown that in seed progeny of Quercus robur L., Pinus sylvestris L. and Betula pendula Roth. some cytogenetical characteristics vary under conditions of contamination. Such changes may be common or specific type. Thus, the frequency of pathological mitosis increases under such conditions in all the investigated species of trees. Inhibition of mitosis was found in the progeny of the pine, and variability in the number of nucleoli was detected in the pine and oak. However, in some cases the level of pathological mitosis in the oak progeny did not differ from the control, but the mitotic activity was higher due to the presence of much more cells being at the prophase stage. In the birch progeny under conditions of contamination the mitotic index increased, with a simultaneous shifts in the peaks of mitotic activity. The possibility of using these cytological characteristics for the aims of cytogenetical monitoring is considered.
Butorina
A K
AK
Chair of Genetics, Selection and Theory of Evolution, Voronezh State University. bsgen185@main.vsu.ru
Kalaev
V N
VN
Vostrikova
T V
TV
Miagkova
O E
OE
D000393:Air Pollutants / Q000009:adverse effects*; D003582:Cytogenetics; D008938:Mitosis; D012426:Russia; D012639:Seeds / Q000235:genetics; D012989:Soil Pollutants / Q000009:adverse effects*; D014197:Trees / Q000235:genetics*
D000393:Air Pollutants; D012989:Soil Pollutants