Osmotic stress and phosphate limitation alter production of cell-to-cell signal molecules and rhamnolipid biosurfactant by Pseudomonas aeruginosa

In Pseudomonas aeruginosa, rhamnolipid production is controlled by the quorum-sensing system RhlRI, which itself depends on LasRI. These systems use cell-to-cell signal molecules: N-butyryl- l-homoserine lactone (C 4–HSL) and N-(3-oxododecanoyl)- l-homoserine lactone (3OC 12–HSL), respectively. Wher...

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