CAJ | 학술논문

NaCl溶液培养导致大麦幼苗根尖细胞有丝分裂指数下降，细胞姐妹染色单体交换(SCE)频率增高，且诱发包括染色体断片、后期染色体桥、不均等分裂及间期细胞微核等的染色体行为异常。细胞平均SCE频率及异常分裂细胞的比率与NaCl浓度和作用时间呈正相关。结果提示：NaCl浓度高或作用时间较长时对大麦细胞具有遗传学毒性。
NaCl용액배양도치대맥유묘근첨세포유사분렬지수하강，세포저매염색단체교환(SCE)빈솔증고，차유발포괄염색체단편、후기염색체교、불균등분렬급간기세포미핵등적염색체행위이상。세포평균SCE빈솔급이상분렬세포적비솔여NaCl농도화작용시간정정상관。결과제시：NaCl농도고혹작용시간교장시대대맥세포구유유전학독성。
The effects of NaCl solution on chromosome behavior and sister chromatid exchanges(SCE)of barley were studied.Abnormal chromosome behavior including chromosome fragmentation,micronuclei,anaphase bridges and unequal split was found in root tip cells of Hordeum vulgare seedlings.Mitotic index decreased but SCE frequency increased significantly when barley incubated with NaCl solution.The effects of NaCl solution depended on its concentration and treatment duration.The higher the treated concentration was,the higher the ratio of chromosomal aberration was.The longer the treatment duration was,the higher the degree of the effects was.The results showed that NaCl solution was genotoxic when the concentration was higher and the treated time was longer.