Effect of Cypermethrin on the Growth of Ciliate Protozoan Paramecium caudatum


  • Department of Zoology, School of Biotechnology and Biosciences, Lovely Professional University, Phagwara, Punjab


Cypermethrin, Paramecium, Population Growth.


Objective: The objective of this study is to assess the effect of cypermethrin on the growth of ciliate protozoan Paramecium caudatum. Materials and Methods: Monoxenic culture of P. caudatum, were exposed to different doses (0.01, 0.05, 0.1, 0.15, and 0.2 μg/L) of cypermethrin along with control for 24, 48, 72, and 96 h time interval. The total numbers of live and dead cells were counted after trypan blue staining in Neubauer hemocytometer. Results: Marked decrease in the number of living cells with the increase in the concentration of cypermethrin and with increasing exposure time intervals was recorded. Conclusion: The results indicate that cypermethrin is toxic to P. caudatum even at low concentrations when it enters in the aquatic system through runoff.


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How to Cite

Dutta, J. (2015). Effect of Cypermethrin on the Growth of Ciliate Protozoan <i>Paramecium caudatum</i>. Toxicology International, 22(1), 100–103. Retrieved from https://www.informaticsjournals.com/index.php/toxi/article/view/20318