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 to saline 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 w...

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Bibliographic Details
Published in:Applied and Environmental Microbiology
Main Authors: Martin, Andrew, Hall, Julie, Ryan, Ken
Format: Text
Language:English
Published: American Society for Microbiology (ASM) 2009
Subjects:
Microbial Ecology
Antarctic
Antarc*
Sea ice
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2786431
http://www.ncbi.nlm.nih.gov/pubmed/19801462
https://doi.org/10.1128/AEM.00829-09
Description
Summary:Experiments simulating the sea ice cycle were conducted by exposing microbes from Antarctic fast ice to saline 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 to increased UV-B radiation significantly reduced metabolic activity.

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