International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:6, June, 2018

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(6): 2980-2990

Toxicological Effects of Chlorpyrifos on Growth, Chlorophyll a Synthesis and Enzyme Activity of a Cyanobacterium Spirulina (Arthrospira) platensis
G. Rathi Bhuvaneswari1, C. S. Purushothaman2, P. K. Pandey3, Subodh Gupta1, H. Sanath Kumar1 and S. P. Shukla1*
1ICAR - Central Institute of Fisheries Education, Mumbai, India
2ICAR - Central Marine Fisheries Research Institute, Cochin (Retd), India
3College of Fisheries, Central Agricultural University, Lembucherra, India
*Corresponding author

Chlorpyrifos, is one of the most widely used organophosphorus insecticides for agricultural activities, and it is highly toxic to non-target organisms. This paper aims to acquire the experimental data on the eco-toxicological effects of Chlorpyrifos and the data can support the assessment of toxicity on the phytoplankton. The microalgae S. platensis was employed to evaluate toxicity of Chlorpyrifos by means of measuring the specific growth rate, generation time, percent growth inhibition, the pigment content of chlorophyll a and carotenoid and the antioxidant enzyme super oxide dismutase. In this study, the results showed that EC50 values was found to be 33.65 mg L-1, indicating the Chlorpyrifos had a relatively limited growth of algae during the acute toxicity experimental period. The growth of the microalgae was significantly affected at 40mg L−1 of Chlorpyrifos, showing growth inhibition after 72h of exposure. Biochemical properties, including carotenoid, chlorophyll and antioxidant enzymes of C. vulgaris were influenced by Chlorpyrifos at relatively high concentrations. Moreover, when algae were exposed to Chlorpyrifos, SOD activity was significantly enhanced compared to control.

Keywords: Chlorpyrifos, Acute Toxicity, Spirulina

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How to cite this article:

Rathi Bhuvaneswari G., C. S. Purushothaman, P. K. Pandey, Subodh Gupta, H. Sanath Kumar and Shukla S. P. 2018. Toxicological Effects of Chlorpyrifos on Growth, Chlorophyll a Synthesis and Enzyme Activity of a Cyanobacterium Spirulina (Arthrospira) platensis.Int.J.Curr.Microbiol.App.Sci. 7(6): 2980-2990. doi:
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