Heavy Metal Tolerance Studies of Cyanobacterial Species Under Experimental Conditions

Periodic Research (P: ISSN No. 2231-0045 RNI No. UPBIL/2012/55438 VOL.-III, ISSUE-II, November-2014 E: ISSN No. 2349-9435)

Abstract

 Pragya Kulkarni 

Deptt. of Microbiology, Govt. V.Y.T. P.G. Autonomous College, Durg

Chetna Gupta

 Deptt. of Microbiology, Govt. V.Y.T. P.G. Autonomous College, Durg

Water inhabiting autotrophic microorganisms has the ability to grow in mass quantity under ideal conditions and such ability provides usable biomass at minimal efforts. These microorganisms are reported to play a significant role in heavy metal absorption from contaminated water in which they are growing. In the present study two Cyanobacterial isolates were cultured using different growth media (nitrogen plus and nitrogen free). The isolates were studied for their ability to tolerate heavy metals under experimental conditions by the dilution method with different concentrations (5, 10, 15ppm). Among the heavy metals Cu, As, Pb and Hg are reported to require for correct functioning of living organisms but an excess or deficiency of these metals can promote severe toxic effects, which depends on the type of organism, the nature and concentration of the metal and environmental conditions. Based on above assumption both Synchocystis sp. and Oscillatoria sp. showed various degree of tolerance for selected heavy metals.  

for full paper please visit below link :

http://www.socialresearchfoundation.com/upoadreserchpapers/2/33/1504131224101stenglish.pdf

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