Платонова А. The state of the anti-oxidation system in pea sprouts (Pisum sativum L.) under the influence of cadmium, thallium and lead ions

. Investigation object: pea sprouts. Investigation purpose: to clarity singularities of functioning of anti-oxidation system of pea sprouts under 2-, 5- and 8-days long exposition by cadmium, thallium and lead ions in laboratory conditions. Investigation methods: spectrophotometry. Theoretical and practical results, novelty: Influence of thallium, cadmium and lead ions on anti-oxidation system and content of malonil aldehyde in pea sprouts has been found for the early stages of plants ontogenesis. Activation of anti-oxidation system has been reported for 2-days long exposition of the ions while 8-days long exposition led to decrease of activity of anti-oxidation ferments. Content of the reduced glutathione was found the only biochemical parameter among all ones under this investigation, which exhibited specific sensitivity to the heavy metal ions content. Results of the investigation widen and complete knowledge about specific influence of the heavy metal ions on organism. The results also giv e opportunity to clarity specific traits of protective systems responce on cadmium, thallium and lead intoxication. Level of the reduced glutathione may be used as the indicator of a plant's responce on the intoxication as well as the indicator of a plant's homeostasis state. Degree of application: it is planned. Sphere (area) of application: physiology and biochemistry of plants, ecology.