Fatal affairs - conjugational transfer of a dinoflagellate-killing plasmid between marine .

The roseobacter group of marine bacteria is characterized by a mosaic distribution of ecologically important phenotypes. These are often encoded on mobile extrachromosomal replicons. So far, conjugation had only been experimentally proven between the two model organisms and .

Author Correction: The planctomycete Stieleria maiorica Mal15 employs stieleriacines to alter the species composition in marine biofilms.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Author Correction: The planctomycete Stieleria maiorica Mal15 employs stieleriacines to alter the species composition in marine biofilms.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

The planctomycete Stieleria maiorica Mal15 employs stieleriacines to alter the species composition in marine biofilms.

Bacterial strains of the phylum Planctomycetes occur ubiquitously, but are often found on surfaces of aquatic phototrophs, e.g. alga.

The first world swimming championships of roseobacters-Phylogenomic insights into an exceptional motility phenotype.

Many marine Alphaproteobacteria of the Roseobacter group show a characteristic swim-or-stick lifestyle, for which motility is a crucial trait. Three phylogenetically distinct flagellar gene clusters (FGCs) have been identified in Rhodobacteraceae that have been named fla1, fla2 and fla3 according to their relative abundance. In addition to the flagellar-dependent swimming and swarming motility, pilus-dependent twitching mediates bacterial locomotion.

The Composite 259-kb Plasmid of DSM 17316-A Natural Replicon with Functional RepABC Modules from and .

A multipartite genome organization with a chromosome and many extrachromosomal replicons (ECRs) is characteristic for . The best investigated ECRs of terrestrial rhizobia are the symbiotic plasmids for legume root nodulation and the tumor-inducing (Ti) plasmid of . RepABC plasmids represent the most abundant alphaproteobacterial replicon type.

The limits to growth - energetic burden of the endogenous antibiotic tropodithietic acid in Phaeobacter inhibens DSM 17395.

Phaeobacter inhibens DSM 17395, a model organism for marine Roseobacter group, was studied for its response to its own antimicrobial compound tropodithietic acid (TDA). TDA biosynthesis is encoded on the largest extrachromosomal element of P. inhibens, the 262 kb plasmid, whose curation leads to an increased growth and biomass yield.

Biofilm plasmids with a rhamnose operon are widely distributed determinants of the 'swim-or-stick' lifestyle in roseobacters.

Alphaproteobacteria of the metabolically versatile Roseobacter group (Rhodobacteraceae) are abundant in marine ecosystems and represent dominant primary colonizers of submerged surfaces. Motility and attachment are the prerequisite for the characteristic 'swim-or-stick' lifestyle of many representatives such as Phaeobacter inhibens DSM 17395. It has recently been shown that plasmid curing of its 65-kb RepA-I-type replicon with >20 genes for exopolysaccharide biosynthesis including a rhamnose operon results in nearly complete loss of motility and biofilm formation.