Low salinity and high-level UV-B radiation reduce single-cell activity in Antarctic sea ice bacteria

Experiments simulating the sea ice cycle were conducted by exposing microbes from Antarctic fast ice tosaline and irradiance regimens associated with the freeze-thaw process. In contrast to hypersaline conditions(ice formation), the simulated release of bacteria into hyposaline seawater combined wit...

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Bibliographic Details
Published in:Applied and Environmental Microbiology
Main Authors: Martin, AR, Hall, J, Ryan, K
Format: Article in Journal/Newspaper
Language:English
Published: Amer Soc Microbiology 2009
Subjects:
Biological Sciences
Microbiology
Microbial Ecology
Antarctic
Antarc*
Sea ice
Online Access:http://aem.asm.org
https://doi.org/10.1128/AEM.00829-09
http://www.ncbi.nlm.nih.gov/pubmed/19801462
http://ecite.utas.edu.au/62614
Description
Summary:Experiments simulating the sea ice cycle were conducted by exposing microbes from Antarctic fast ice tosaline and irradiance regimens associated with the freeze-thaw process. In contrast to hypersaline conditions(ice formation), the simulated release of bacteria into hyposaline seawater combined with rapid exposure toincreased UV-B radiation significantly reduced metabolic activity.

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