Selective forces imposed by the squid animal host drive rapid adaptation of non-native Vibrio fischeri bacteria through convergent mutations of large effect, unmasking preexisting coordinated regulation of symbiosis.

Both beneficial and pathogenic bacteria can use their sheathed flagella during host colonization as a novel toxin-/signal-delivery mechanism.

Genetic analysis and host colonization assays reveal a regulatory mechanism that enables a bacterial symbiont to bypass the constraints of quorum sensing to activate specific cellular traits necessary to colonize its host.

Beneficial symbiotic bacteria encode an exceptional number of toxin-related genes that are all expressed by the symbionts in the host, supporting their key role in host-microbe interactions.

Overlapping DNA-binding specificity allows global transcription factors to cooperatively bind the same DNA sites and integrate two signals in the control of gene expression.

In situ structures of the flagellar motors genetically docked in CCW and CW rotational states reveal major rearrangement that facilitates rotational switch in Vibrio alginolyticus..

Considering the course of a pathogen's evolution, there appears to be interplay between secretion systems, providing unique, synergistic mechanisms to support a successful lifestyle for possibly pathogenesis, symbiosis and/or parasitosis.

The first overview of fitness interactions within a species provides information how genetic interactions and ecology combine together to determine trait evolution.

The T12 Vibrio cholerae lineage has been continuously circulating in West Africa since at least 2012, highlighting the importance of regional disease control efforts.