The UV responses of bacterioneuston and bacterioplankton isolates depend on the physiological condition and involve a metabolic shift |
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| Authors: | Santos Ana L Baptista Inês Lopes Sílvia Henriques Isabel Gomes Newton C M Almeida Adelaide Correia António Cunha Angela |
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| Institution: | Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal. |
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| Abstract: | Bacteria from the surface microlayer (bacterioneuston) and underlying waters (bacterioplankton) were isolated upon exposure to UV-B radiation, and their individual UV sensitivity in terms of CFU numbers, activity (leucine and thymidine incorporation), sole-carbon source use profiles, repair potential (light-dependent and independent), and photoadaptation potential, under different physiological conditions, was compared. Colony counts were 11.5-16.2% more reduced by UV-B exposure in bacterioplankton isolates (P?
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