Pollen Quality and Cytogenetic Changes of Scots Pine as Indicators of the Effect of Technogenic Environmental Pollution of Krivoy Rog
I. I. KORSHIKOV1, H. V. LAPTEVA2, Yu. A. BELONOZHKO1
1Donetsk Botanical Garden of the NAS of Ukraine, 83059, Donetsk, Ilyicha ave., 110
2Krivoi Rog Botanical Garden of the NAS of Ukraine, 50089, Krivoy Rog, Marshaka str., 50
Keywords: Pinus sylvestris, pollen, seeds, cytogenetic changes, Krivoy Rog region
Abstract
Pollen quality and cytogenetic changes in seedlings of Scots pine (Pinus sylvestris L.) were studied. The pines growing on different sites in Krivoy Rog (on an iron ore dump, near a large metallurgical plant and in the arboretum of Krivoy Rog Botanical Garden) were compared to the plants from the forestry in Ternopil region, where there is no environmental pollution. It was established that the percentage of pollen with developmental abnormalities was 3 to 4 times higher in the plants from Krivoy Rog. The percentage of pollen with abnormalities of germinating pollen tubes was 4.5 to 18.2 times higher and the percentage of cytogenetic abnormalities in dividing cells of seedling roots was 2 to 4.2 times higher as compared to the plants from the forestry in Ternopil region.
|
