TABLE 2.

Linoleic acid levels in M9L after growth of E. cloacae strains

E. cloacae strain	Remaining linoleic acid levels (mg/ml)a at:
	0 h	3 h	12 h
EcCt-501R3	0.35	0.14*	0.00*
Ec31	0.35	0.35	0.32
Ec31(pKV311)	0.35	0.03*	0.00*
EcL1	0.35	0.35	0.38
EcL1 (pKVL16)	0.35	0.08*	0.00*

^aLinoleic acid concentrations were determined by gas chromatography after periods of E. cloacae growth in M9 supplemented with 0.35 mg of sodium linoleate per ml. Numbers in each row followed by an asterisk differ significantly (P = 0.05) from the readings at 0 h according to t tests.