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Full-Text Articles in Life Sciences
Prophage Induction Of Indigenous Marine Lysogenic Bacteria By Environmental Pollutants, Pamela K. Cochran, Christine A. Kellogg, John H. Paul
Prophage Induction Of Indigenous Marine Lysogenic Bacteria By Environmental Pollutants, Pamela K. Cochran, Christine A. Kellogg, John H. Paul
Marine Science Faculty Publications
Lysogenic bacteria may be abundant components of bacterial assemblages in marine waters. The tremendous number of viruses found in estuarine and other eutrophic environments may be the result in part of induction of prophages. Mitomycin C is the inducing agent of choice for prophage induction; however this is not naturally found in the marine environment. We determined the capability of environmentally important pollutants to effect prophage induction in natural populations of marine bacteria. We investigated Aroclor 1248, a PCB mixture, bunker C fuel oil #6, and a pesticide mixture as inducing agents for natural bacterial communities from the Gulf of …
Seasonal And Diel Abundance Of Viruses And Occurrence Of Lysogeny/Bacteriocinogeny In The Marine Environment, Sunny C. Jiang, John H Paul
Seasonal And Diel Abundance Of Viruses And Occurrence Of Lysogeny/Bacteriocinogeny In The Marine Environment, Sunny C. Jiang, John H Paul
Marine Science Faculty Publications
To understand the role of viruses in the marine environment, it is important to know the factors affecting their temporal distribution and the abundance of lysogens. We therefore performed a seasonal and a diel study on viral distribution in Tampa Bay, Florida, USA, and detected the abundance of lysogens and bacteriocinogens amongst marine bacterial isolates from diverse marine environments. We investigated the distribution of viruses, bacterial direct counts, chlorophyll a (chl a), salinity and temperature during a 13 mo period in the Tampa Bay estuary. The results indicated that the viral population had a strong seasonal pattern with the highest …