Lauren Speare

41% of Gram-negative bacteria encode a Type Six Secretion System

The paper quantifies T6SS prevalence in Gram-negative bacteria using genome analysis and finds it is present in 41% of well-sampled genera.

A dominant coral parasite, Candidatus Aquirickettsia rohweri, resists antibiotic exposure and thermal challenge below the bleaching threshold in disease-susceptible Acropora cervicornis

This study shows that the coral parasite Candidatus Aquirickettsia rohweri resists antibiotics and thermal stress in disease-susceptible Acropora cervicornis, suggesting antibiotic treatment may not disrupt its dominance.

H-NS is a conserved repressor of the type VI secretion system in Vibrio fischeri

This study identifies H-NS as a conserved repressor of the T6SS in V. fischeri by showing its role in transcriptional regulation and T6SS weapon production under different viscosity conditions.

The conserved global regulator H-NS has a strain-specific impact on biofilm formation in Vibrio fischeri symbionts

This paper shows that the conserved regulator H-NS has strain-specific effects on biofilm formation in Vibrio fischeri, with different strains showing varied phenotypes when hns is disrupted.