Heterogeneous Type IV Pili-Mediated Twitching Motility Reveals Distinct Collective Behaviors in Acinetobacter baumannii
Using standardized twitching assays and time-lapse microscopy, researchers showed that motile Acinetobacter baumannii strains differ markedly from Pseudomonas aeruginosa in movement onset and organization. Two major expansion phenotypes and early- or delayed-onset subgroups were identified, highlighting extensive heterogeneity in surface colonization strategies driven by Type IV pili.
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