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ABSTRACT
General toxicity and genotoxicity of cyanoprokaryote Nodularia moravica was investigated on the base of Allium root meristem in vivo test system. Seeds sprouted in dechlorinated tap water were analyzed as a control sample. Seeds sprouted in the water-Dimethyl sulfoxide (9:1, v:v) extract, diluted 50 and 100 times (D1–797 and D2-797, respectively) were used as test samples. It was found that different concentrations of dilutions of the initial extract of cyanoprokaryote Nodularia moravica induced damages such as micronuclei (MNi), fragments, anaphasic and telophasic bridges and laggards with higher total frequency than in the control. Germination percentage and root length were found to be in positive correlation with percentage of chromosome aberrations and depend on the extract concentration. It was concluded that Nodularia moravica extract in water-DMSO solution induces general and genotoxycity in Allium cepa root meristem cells. There were not found data about cytotoxicity.