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EFFECT OF COAL FLY ASH ON SOMATIC CHROMOSOMES OF Helianthus annuus L.(SUNFLOWER)

机译:煤粉煤灰对Helianthus annuus L.体细胞染色体的影响(向日葵)

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The assessment of possible impacts of coal fly ash on somatic chromosomes of Helianthus annuus L. were investigated. The roots were treated with diluted, semi diluted and concentrated solution of fly ash. The mitotic and phase indexes were determined and chromosomal abnormalities were investigated in both control and test groups. It was found that coal fly ash had a marked mitodepressive action on mitosis. Chromosome aberrations were observed in all stages of mitosis. Results of laboratory experiments reveals that cell size increased with the treatment of semi diluted and concentrated fly ash solution respectively, but cell size not affected when root tip treated with the diluted fly ash solution. The types of chromosomal abnormalities observed included: chromatid bridge, c-mitosis, disturbed metaphase. A pronounced toxic effect is observed in semi diluted solution and above its.
机译:研究了对煤粉粉煤灰对Helianthus Anuus L.的体细胞染色体的影响。将根部用稀释的半稀释和浓缩粉煤灰溶液处理。确定有丝分裂和相位指标,并在对照组和试验组中研究了染色体异常。发现煤粉煤灰对有丝分裂具有显着的致力压作用。在有丝分裂的所有阶段观察到染色体像差。实验室实验结果表明,通过分别处理半稀释和浓缩粉煤灰溶液的细胞尺寸增加,但在用稀释的粉煤灰溶液处理的根尖时,细胞尺寸不受影响。所观察到的染色体异常的类型包括:染色体桥,C-丝分裂,干扰的中期。半稀释溶液中观察到明显的毒性效果。

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