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- 2Differential control of growth phase-dependent production of extracellular enzymes
- 3Involvement of two different regulatory systems in control of growth phase-dependent gene expression
- 4Surface motility
- 5Communication and interactions between bacterial cells: towards multicellularity
Serratia liquefaciens secretes a broad spectrum of hydrolytic enzymes to the surrounding medium and possesses the ability to differentiate into specialized swarmer cells capable of rapid surface motility. Control of exoenzyme production and swarming motility is governed by similar regulatory components, including a quorum-sensing mechanism and the flagellar master operon flhDC.