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Position: Home > Articles > Effects of Cu~(2+) on Content of Polysaccharide in Paramaecium caudatum Journal of Anhui Agricultural Sciences 2009 (2) 188-189

Cu~(2+)对草履虫体内多糖含量的影响

作  者:
李清;杨润亚;张丽;樊培峰
单  位:
鲁东大学生命科学学院
关键词:
草履虫;多糖;Cu2+
摘  要:
[目的]研究Cu2+对草履虫体内多糖含量的影响。[方法]通过用含不同质量浓度Cu2+的稻草液培养大草履虫,提取其体内多糖,用蒽酮-硫酸法进行检测,研究Cu2+对大草履虫体内多糖含量的影响。[结果]0.05 mg/L可能是大草履虫适应Cu2+的临界质量浓度,低于此浓度时,大草履虫体内的多糖含量随着Cu2+质量浓度增大而呈现小幅度的增高,大草履虫的生长繁殖得到增强,高于此浓度时,大草履虫体内的多糖含量随着Cu2+质量浓度增大而显著地降低,大草履虫生长繁殖开始明显受到抑制,且浓度越高受毒害越明显。[结论]草履虫对Cu2+表现出较高的敏感性,是一种对水体卫生质量评价的较理想指示生物。
译  名:
Effects of Cu~(2+) on Content of Polysaccharide in Paramaecium caudatum
作  者:
LI Qing et al(School of life Science,Ludong University,Yantai,Shandong 264025)
关键词:
Paramaecium caudatum;Polysaccharide;Cu2+
摘  要:
[Objective] The aim was to study the effect of Cu2+ on the content of polysaccharide in Paramaecium caudatum.[Method] The P.caudatum were cultured in the straw water with different mass concn.of Cu2+,its polysaccharide was extracted and detected by the anthrone-sulfuric method and the effect of Cu2+ on the content of polysaccharide in P.caudatum was studied.[Result] 0.05 mg/L could be the critical mass concn.of P.caudatum fitting to Cu2+.Below this concn.,the polysaccharide content in P.caudatum was increased in a small range with the increment of mass concn.of Cu2+,then the growth and propagation of P.caudatum was strengthened and above this concn.,the polysaccharide content was decreased significantly with the increment of mass concn.of Cu2+,then the growth and propagation of P.caudatum began to be restrained obviously and the poison was more obvious when the concn.was higher.[Conclusion] The P.caudatum showed higher sensitivity to the Cu2+ and it was a more ideal indicative biology for water health quality evaluation.

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