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dc.contributor.authorDeSouza, M.J.B.D.
dc.contributor.authorLokaBharathi, P.A.
dc.contributor.authorNair, S.
dc.contributor.authorChandramohan, D.
dc.date.accessioned2008-01-30T13:25:07Z
dc.date.available2008-01-30T13:25:07Z
dc.date.issued2007
dc.identifier.citationBiometals, Vol.20; 821-828p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/676
dc.description.abstractThe present study examines the metal and antibiotic resistant bacteria in ice and water from lakes east and west of the Indian base camp (Maitri) in Antarctica. The isolates from western and eastern lakes showed distinct geographical differences in properties like metal resistance and enzyme expression. This may be attributed to high organic loading in the lakes on the west of Maitri. However, there was no marked geographical distinction in antibiotic resistance between the lakes. Bacteria from the lakes on the eastern side showed resistance to three or more metals including mercury while, those from the western were resistant to only 1-2 metals excluding mercury. Multiple enzyme expression was more pronounced in the lakes on the western side. On the eastern side multiple metal resistance was encountered in bacterial isolates associated with fewer enzyme expressions suggesting a 'tradeoff'. Thus these Antarctic isolates from the east trade their ability to express multiple enzymes for developing resistance to multiple metals including mercury.
dc.language.isoen
dc.publisherSpringer
dc.subjectmicroorganisms
dc.subjectenzymes
dc.subjectenzymatic activity
dc.subjectmetals
dc.subjectbiological resistence
dc.subjectresistence mechanism
dc.subjectmercury
dc.subjectBacteria
dc.title'Trade-off' in Antarctic bacteria: limnetic psychrotrophs concede multiple enzyme expressions for multiple metal resistance
dc.typeJournal Article


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