Show simple item record

dc.contributor.authorLokaBharathi, P.A.
dc.contributor.authorNair, S.
dc.contributor.authorDeSouza, M.J.B.D.
dc.contributor.authorChandramohan, D.
dc.date.accessioned2009-01-10T11:49:37Z
dc.date.available2009-01-10T11:49:37Z
dc.date.issued1999
dc.identifier.citationCurrent Science, Vol.76; 1585-1587p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/1838
dc.description.abstractThe total number of bacteria counted directly by epifluorescent microscopy showed that they ranged from 10 sup(8)-10 sup(-1) in Antarctic lake water samples. The percentages of retrievable viable counts (RVC) of anaerobic bacteria (AnB) was greater than aerobic counts. Among the different groups of anaerobes, the order of retrieval was Thiobacillus denitrificans like organisms (TDLO) greater than fermentative bacteria (FB) greater than sulfate reducing bacteria (SRB). The total direct anaerobic viable counts (TDAnVC) was one order more than the total direct aerobic viable counts (TDAeVC). Laboratory experiments with one of the lake-isolates indicated that there was a tendency to express higher viability of 61% at redox potential (Eh) ranging from -281 to -335 mv. It is suggested that the disposition to express increased viability under reducing conditions is a strategy to counteract stress due to supersaturation of oxygen in the cold lacustrine environment.
dc.language.isoen
dc.publisherCurrent Science Association, Bangalore, India
dc.rightsCopyright [1999]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subjectanaerobic bacteria
dc.subjectanaerobiosis
dc.subjectbacterial counters
dc.subjectfermentation
dc.subjectsulphate reduction
dc.subjectredox potential
dc.subjectsupersaturation
dc.titleTruce with oxygen - A naerobiosis outcompete aerobiosis in the Antarctic lacustrine bacteria
dc.typeJournal Article


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record