Lipopolysaccharide Architecture Dictates Susceptibility to Predation by Bdellovibrio bacteriovorus.

Disruption of inner core biosynthesis genes in Escherichia coli significantly delays predation by four Bdellovibrio predators, with shorter LPS structures conferring greater resistance.

• Why it matters: Understanding how prey surface features influence predation is crucial for comprehending microbial predator-prey dynamics and potential biocontrol strategies against Gram-negative bacteria.
• What they did: Researchers systematically examined the susceptibility of E. coli mutants with defined LPS core truncations using four Bdellovibrio strains, assessing predation delay and surface masking effects.
• The result: Findings show that LPS architecture modulates predation efficiency, with shorter LPS structures reducing susceptibility, and extracellular LPS influencing predator activity, informing microbial community interactions.