Phaeobacter inhibens from the Roseobacter clade has an environmental niche as a surface colonizer in harbors

Systematic and Applied Microbiology
Lone GramThorsten Brinkhoff

Abstract

Phaeobacter inhibens belongs to the marine Roseobacter clade and is important as a carbon and sulfur metabolizer, a biofilm former and producer of the antibiotic tropodithietic acid (TDA). The majority of cultured strains have been isolated from marine aquaculture sites, however, their niche in the environment is to date unknown. Here, we report on the repeated isolation of Phaeobacter inhibens strains from a marine environment (harbors) not related to aquaculture. Based on phenotype and 16S rRNA gene sequence similarity, a total of 64 P. inhibens strains were identified from 35 samples (eukaryotic organisms or biofilms on inert surfaces) in Jyllinge Harbor during late summer and autumn, but not during winter and spring in 2009, 2011, and 2012. P. inhibens strains were also isolated from biofilms at three other Danish harbors (in 2012), but not from the surrounding seawater. Ten of the 14 samples from which P. inhibens was cultured contained bryozoans. DNA was extracted (in 2012) from 55 out of 74 Jyllinge Harbor samples, and 35 were positive for Phaeobacter using a genus-specific PCR. P. inhibens strains were isolated from nine of these samples. DNA and RNA were isolated from 13 random samples and used for amplification of 16S...Continue Reading

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Citations

Feb 26, 2016·Environmental Microbiology·Carla LutzSuhelen Egan
Aug 24, 2016·The ISME Journal·Eva C SonnenscheinLone Gram
May 10, 2017·FEMS Microbiology Ecology·Kathleen TrautweinRalf Rabus
Jul 13, 2017·International Journal of Systematic and Evolutionary Microbiology·Sven BreiderThorsten Brinkhoff
Apr 7, 2018·Environmental Microbiology Reports·Eva C SonnenscheinLone Gram
Dec 2, 2017·Genome Biology and Evolution·Heike M FreeseJörg Overmann
Oct 13, 2019·Applied and Environmental Microbiology·Daniel WünschRalf Rabus
Jun 19, 2018·Frontiers in Microbiology·Rolf DanielBernd Wemheuer
Oct 28, 2017·Frontiers in Microbiology·Gerrit WienhausenMeinhard Simon
Dec 15, 2020·Applied and Environmental Microbiology·Eva C SonnenscheinLone Gram

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