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Bangalore, India

Chandra P.R.,Bellandur gate | Hossein N.R.,Bellandur gate | Deepa S.,Bellandur gate | Guha R.D.,Bellandur gate | And 2 more authors.
Research Journal of Biotechnology

The aim of this work was to evaluate the physiological aspects of polyphosphate metabolism of Cunninghamella. elegans (C. elegans) grown in the presence of copper. The growth profile was obtained by means of total yield in the biomass, consumption of orthophosphates and accumulation of polyphosphate and phosphatases enzyme activities. The results revealed the influence of copper on the growth, observed by the yield in biomass. Orthophosphate consumption was faster in the cells that were grown in the presence of copper. The presence of copper in the culture medium induced accumulation of polyphosphate. The polyphosphate level was almost constant in the beginning of the control culture growth and could be related to the exponential growth phase. On the other hand, the copper treated cultures exhibited a significant reduction in the polyphosphate levels, indicating an active metabolization of the polymer. Acid phosphatase activity was not detected in the conditions studied but alkaline phosphatase activity was significantly lower in the treated cultures. The results suggest the potential use of Cunninghamella. elegans isolate in bioremediation and biosorption applied to environments polluted by copper. Source

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