Parameters of the Histological Adaptation of Marmorkrebs Procambarus virginalis (Lyko, 2017) (Decapoda, Cambaridae) to Manganese, Nickel and Lead Ions Pollution

A. Naboka, O. Marenkov, J. Kovalchuk, Zoya Shapovalenko, O. Nesterenko, Bogdan Dzhobolda
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引用次数: 3

Abstract

Manganese, lead and nickel are heavy metals, which are the priority fresh water toxic contaminants and relate to of the first danger class chemicals. Heavy metals cause functional disorders in the tissues and organs of hydrobionts, affecting their linear and weight indices, reproductive system, digestive and extraction organs. In the experiment on marbled crayfishProcambarus virginalis(Lyko, 2017) studied the long-term effects of various concentrations of heavy metal ions on the physiological state and histostructure of tissues and organs. According to the results of research, it was found that among the studied heavy metals nickel ions influenced the weight indexes and mortality of crustaceans the most negatively. The results of morphometric studies on marbled crayfish indicate no significant changes in the control group and experimental one, but heavy metals influenced the form of the hepatopancerase lobes and the size of the lumen of the gland. Research on adipocytes of the connective tissue showed a significant difference between the size of cells under the influence of heavy metals. Dimensions of adipocytes fluctuated in a wide range from 144 μm2to 537 μm2. In control group the adipocyte area was 406.96 μm2. Experimental studies of hemolymph showed that, under the influence of lead ions, a significant increase in 1.4 times was observed in the area of hemolymph cells; when manganese and nickel were added, moderate decrease was observed in cells. It was found that under the influence of nickel, the area of round hyalinocytes has reduced by 1.7 times.
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原amambarus virginalis (Lyko, 2017)(十足目,蜈蚣科)对锰、镍和铅离子污染的组织学适应参数
锰、铅和镍是重金属,是淡水中的首要有毒污染物,属于第一类危险化学品。重金属会导致水生生物组织和器官的功能紊乱,影响其线性和重量指数、生殖系统、消化和提取器官。在对大理石纹小龙虾的实验中,弗吉尼亚原螯虾(Lyko,2017)研究了不同浓度的重金属离子对组织器官生理状态和组织结构的长期影响。研究结果表明,在所研究的重金属中,镍离子对甲壳类动物的体重指数和死亡率的影响最大。大理石纹小龙虾的形态计量学研究结果表明,对照组和实验组没有显著变化,但重金属影响了肝胰腺叶的形状和腺体内腔的大小。对结缔组织脂肪细胞的研究表明,在重金属的影响下,细胞的大小存在显著差异。脂肪细胞的大小在144μm2到537μm2之间波动很大。对照组脂肪细胞面积为406.96μm2。血淋巴的实验研究表明,在铅离子的影响下,血淋巴细胞面积显著增加1.4倍;当添加锰和镍时,观察到细胞中的适度减少。研究发现,在镍的影响下,圆形透明细胞的面积减少了1.7倍。
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International Letters of Natural Sciences
International Letters of Natural Sciences MULTIDISCIPLINARY SCIENCES-
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