Heavy oil exposure increases viral production in natural marine bacterial populations |
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| Authors: | Mitsuhiro Yoshida Satoru Suzuki |
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| Institution: | 1. Center for Marine Environmental Studies (CMES), Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
2. Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka, Kanagawa, 237-0061, Japan
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| Abstract: | This study examined whether heavy oil (HO) increases viral production and how that change may affect the marine bacterial community. The addition of a relatively low concentration (10 μg/mL) of HO to seawater resulted in the highest degree of viral lysis. Although the composition of the bacterial community did not change upon the viral lysis in terms of the taxa present, the relative abundance of the γ-Proteobacteria family Alteromonadaceae decreased (by 10 %) after the HO exposure, implying that the selective lysis by viruses and induced prophages may be responsible for changes in the composition of the bacterial community. |
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