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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 15, No. 3, 2011, pp. 489-492
Bioline Code: ja11081
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 15, No. 3, 2011, pp. 489-492

 en Chromium Tolerance and Bioremoval by Cyanobacteria Isolated from Textile Mill Oxidation Pond in Pure and Consortia Form
Kaushik, Anubha; Anjana, Kamra; C.P., Kaushik & Kiran, Bala

Abstract

Two cyanobacterial species Nostoc calcicola check for this species in other resources HH-12 and Chroococcus minutus check for this species in other resources HH-11 isolated from a textile mill oxidation pond were examined individually and as consortium for their chromium(VI) tolerance and bioremoval from aqueous solutions. Both species were tolerant to the metal and showed significant increase (p<0.01) in concentration of chlorophyll and carotenoids at higher concentration of chromium, and the tolerance further in the consortium. Concentration of phycobilins also increased in the pure culture of Chroococcus and consortium was also higher in response to increasing chromium concentration in the medium. Chromium bioremoval potential was high in both species and the consortium was even more efficient in metal removal. Probable antioxidative role of carotenoids in metal tolerance have also been discussed.

 
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