Downloads: 104 | Views: 113
Research Paper | Microbiology | India | Volume 4 Issue 9, September 2015
Impact of Hg (0) on Microbial functional diversity with their Enzyme Profile (MerA)
Rashmita Patel | Ratna Trivedi 
Abstract: Mercury (Hg) is one of the most important toxic pollutants widespread in the environment. It is being extensively used in industrial applications (chlor-alkali electrolysis, fungicides, disinfectants, dental products, etc), resulting in local hot spots of pollution and serious effects on biota and humans. During study we investigated changes in the microbial and functional communities within mercury contaminated effluent sample. The composition and diversity of microbial communities and specic functional groups involved in key pathways in the geochemical cycling of Mercury were characterized using cultivation-dependent and Independent Approach. The most common bacterial mercury resistance mechanism is based on the reduction of Hg2+ to Hg0, which is dependent on the mercuric reductase enzyme (merA) activity. Seven Mercury resistant bacteria Isolated, out of them highest resistance 200ppm were given by SG-1 And SG-4 Isolates. It was found that strong correlation may be present between higher metal tolerance and Antibiotic resistance. During Enzyme activity study it was found that SG-1 gave maximum enzyme activity Rnaging between 65-80 unit/ml/mg. The metal uptake ability suggests possibility of using these bacterial strains for removal of mercury from Hg2+ contaminated Effluent.
Keywords: Mercury, Fuctional Diversity, Mercury resistance, Mercury Reductase
Edition: Volume 4 Issue 9, September 2015,
Pages: 1227 - 1232
Similar Articles with Keyword 'Mercury'
Research Paper, Microbiology, India, Volume 4 Issue 1, January 2015Pages: 2736 - 2743
Bioremediaton of Tannery Effluent Using Lyngbya Sp. with Coir Pith
Lakshmi Karuppaiah | Rajakumar Suntharam | Malliga Perumal
Research Paper, Microbiology, India, Volume 3 Issue 9, September 2014Pages: 1002 - 1005
Pilot Scale Cultivation of Calocybe Indica by Utilizing Reeds as the Substrate and Nutritional Analysis of its Harvested Fruit Bodies
Velusamy Karuppuraj | Subramanian Chandra Sekarenthiran | Karuppan Perumal