SprI/SprR Quorum Sensing System of Serratia proteamaculans 94

Table 3

Amount of AHLs detected in S. proteamaculans 94 culture supernatants by LC-MS/MS analysis.

AHL	BHL	HHL	OHHL	HHHL	HOHL	OHL	ODHL	OdDHL	DDHL	OOHL
ng/ml	12.5	41	>2500	>2000	nd	5.5	2	nd	2	Traces
μM	<0.1	0.2	>11.7	>9.3	nd	<0.1	<0.01	nd	<0.01	<0.001

nd, not detected. Concentration of AHLs in EtAc extracts, which were prepared from supernatants of strain S. proteamaculans 94 strain, was measured (mass and molar concentrations). Analysis was performed after 24 hours of bacterial growth.