Low Salinity and High-Level UV-B Radiation Reduce Single-Cell Activity in Antarctic Sea Ice Bacteria | Zendy

Andrew Martin | Zendy; Julie Hall | Zendy; Ken G. Ryan | Zendy

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Low Salinity and High-Level UV-B Radiation Reduce Single-Cell Activity in Antarctic Sea Ice Bacteria

Author(s) -

Andrew Martin,

Julie Hall,

Ken G. Ryan

Publication year - 2009

Publication title -

applied and environmental microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.552

H-Index - 324

eISSN - 1070-6291

pISSN - 0099-2240

DOI - 10.1128/aem.00829-09

Subject(s) - seawater , salinity , sea ice , bacteria , irradiance , environmental science , oceanography , radiation , atmospheric sciences , ice formation , environmental chemistry , chemistry , biology , geology , physics , optics , genetics

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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