Enumeration of viable bacteria in the marine pelagic environment.

Applied and Environmental Microbiology
A Bianchi, L Giuliano

Abstract

The low percentage of living bacteria commonly obtained when comparing viable counts with total direct counts in seawater could be due more to inappropriate techniques for appreciating the growth ability of living cells than to unadapted culture conditions. The most-probable-number counts in filtered seawater cultures and the microscopic counts of 4(prm1),6-diamidino-2-phenylindole (DAPI)-stained aggregate-forming units grown on black polycarbonate filters appeared significantly correlated to the direct counts. Both these techniques show that in the superficial and intermediate water masses, the living cells may constitute an important (frequently higher than 20%) but highly variable part of the total populations. These viable counts appear more realistic than the conventional CFU counts, which provide only 0.001 to 0.2% of the total counts.

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Citations

Jul 15, 2004·Extremophiles : Life Under Extreme Conditions·Tatiana GroudievaGarabed Antranikian
Jan 24, 2015·The ISME Journal·Jessica ToutJustin R Seymour
Jun 6, 2016·Applied Microbiology and Biotechnology·Niilo KaldaluTanel Tenson
Jul 2, 1998·Applied and Environmental Microbiology·C DahlbergM Hermansson
Oct 29, 2017·Environmental Science and Pollution Research International·Pasqualina LaganàSanti Delia
Sep 22, 2001·Journal of Microbiological Methods·I BussmannB Schink
Mar 15, 2006·Applied and Environmental Microbiology·F Joux, P Lebaron
Sep 1, 1996·Applied and Environmental Microbiology·V Boivin-JahnsR Christen
Oct 23, 2012·Aquatic Biosystems·Kaberi ChaudhuriMaitree Bhattacharyya
Aug 12, 2010·Saline Systems·Suman MannaMaitree Bhattacharyya
Mar 11, 2011·Journal of Environmental Radioactivity·M AlexandrovaN Kudryasheva

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