TABLE 4.

Predation assays for 10 potential prey organisms

Prey organism	Zone of predation (mm) generated by:			% of prey cells killed byb:
	CA052B		Mx mean, day 4a
	Day 3	Day 7		OMVs	SN
Escherichia coli	16	60	16.2	>78	<24
Pseudomonas aeruginosa	No zone	No zone	11.8	NDc	ND
Proteus mirabilis	11	42	16.6	>75	<10
Klebsiella pneumoniae	11	45	19.7	>82	<20
Staphylococcus aureus	15	43	12.2	>72	<18
Staphylococcus epidermidis	20	59	14.9	>77	<10
Staphylococcus saprophyticus	8	54	11.2	>5	<29
Enterococcus faecalis	20	57	14.2	>51	<16
Bacillus subtilis	11	20	16.2	ND	ND
Candida albicans	9	14	18.2	ND	ND

^aMx mean is the mean predation zone size for 113 myxobacterial isolates after 4 days of incubation, as described previously (11).

^bCA052B OMVs and culture supernatant (SN) were tested for predatory activity by flow cytometry.

^cND, not determined.