D. Salomon

Quorum Sensing Regulates Virulence Factors in the Coral Pathogen Vibrio coralliilyticus

This study identifies an active quorum sensing pathway in Vibrio coralliilyticus that regulates virulence factors like proteases, biofilms, and type VI secretion systems.

Bile acids activate the antibacterial T6SS1 in the gut pathogen Vibrio parahaemolyticus

This study shows that secondary bile acids activate T6SS1 in Vibrio parahaemolyticus, enabling it to kill commensal bacteria and enhance its virulence.

A T6SS in the coral pathogen Vibrio coralliilyticus secretes an arsenal of anti-eukaryotic effectors and contributes to virulence

This study identifies two temperature-regulated T6SSs in Vibrio coralliilyticus, revealing their roles in bacterial competition and host toxicity, with T6SS2 secreting nine novel anti-eukaryotic toxins.

An N-terminal delivery domain defines a new class of polymorphic T6SS effectors in Enterobacterales

The paper identifies a new N-terminal PIX domain in T6SS effectors from Pantoea agglomerans, showing it is essential for secretion and binds to a specialized VgrG protein.

Gamma-Mobile-Trio systems define a new class of mobile elements rich in bacterial defensive and offensive tools

The paper identifies GMT-containing genomic islands as mobile elements that carry both anti-phage defense systems and antibacterial offensive tools, highlighting their role in bacterial survival and dissemination.

A Vibrio T6SS-mediated lethality in a marine animal model

This study shows Vibrio proteolyticus uses T6SS3 to kill Artemia salina, identifying two known and one novel effector contributing to host lethality.

Vibrio parahaemolyticus T6SS2 effector repertoires

This study identifies the T6SS2 effector repertoire in Vibrio parahaemolyticus using proteomics, revealing core and accessory effectors and a quality control checkpoint.

A new class of polymorphic T6SS effectors and tethers

The paper identifies RIX as a new domain defining polymorphic T6SS effectors and tethers, expanding the known repertoire of T6SS cargo and suggesting a broader role in vibrio-eukaryote interactions.

Post-phagocytosis activation of NLRP3 inflammasome by two novel T6SS effectors

The paper identifies two novel T6SS effectors from Vibrio that induce pyroptosis via NLRP3 inflammasome activation in mammalian immune cells and reveal a compensatory pathway.

Multiple T6SSs, mobile auxiliary modules, and effectors revealed in a systematic analysis of the Vibrio parahaemolyticus pan-genome

The paper systematically analyzes the T6SS gene clusters and auxiliary modules in the Vibrio parahaemolyticus pan-genome, identifying diverse T6SS systems and novel effectors.

A DNase T6SS effector requires its MIX domain for secretion

The paper identifies a DNase toxin domain in a Vibrio parahaemolyticus T6SS effector and shows its necessity for secretion and toxicity.

A dynamic antibacterial T6SS in Pantoea agglomerans pv. betae delivers a lysozyme-like effector to antagonize competitors

This study identifies a functional T6SS in Pantoea agglomerans pv. betae that delivers a lysozyme-like effector to outcompete bacterial rivals.

A binary effector module secreted by a type VI secretion system

The paper identifies a new T6SS secretion mechanism where an effector and co-effector are secreted together, termed a binary effector module, found in marine bacteria.

Formylglycine-generating enzyme-like proteins constitute a novel family of widespread type VI secretion system immunity proteins

This study identifies Tsi3 as a T6SS immunity protein with an FGE domain, showing it prevents self-intoxication by interacting with Tse3 but is not a functional enzyme.

Engineering a customizable antibacterial T6SS-based platform in Vibrio natriegens

This paper engineers a customizable T6SS-based antibacterial platform in Vibrio natriegens to deliver toxins and test their effects.

Vibrio pore-forming leukocidin activates pyroptotic cell death via the NLRP3 inflammasome

This study shows that VPRH, a Vibrio leukocidin, induces pyroptotic cell death via NLRP3 inflammasome activation in macrophages, with a second unknown mechanism.

New players in the regulatory network of Vibrio parahaemolyticus type VI secretion system 1

This study identifies genes required for Vibrio parahaemolyticus T6SS1 activation using a competitive fluorescence screening method.

T3SS effector VopL inhibits the host ROS response, promoting the intracellular survival of Vibrio parahaemolyticus

This study shows that VopL, a T3SS2 effector of Vibrio parahaemolyticus, inhibits host ROS production by disrupting actin cytoskeleton function, thereby promoting bacterial intracellular survival.