TABLE 2.

Gulf of Mexico strains and concentrations

Site	Straina	MPN dilutionb
MAI-686	NOP-122A	2 × 104
	NOP-122B	2 × 104
	NOP-122E1	2 × 104
	NOP-122E2	2 × 104
	NOP-122G1 (= E)c	2 × 104
	NOP-122G2	2 × 104
	NOP-122J1	2 × 104
	NOP-122J2	2 × 104
MU-A85	NOP-822A (= G)c	2 × 104
1	N-131	2 × 105
	P-122B1	2 × 104
	P-131A2	2 × 105
	P-132A2	2 × 105
	P-211A2	2 × 103
	P-211B2 (= W)c	2 × 103
	P-212A1	2 × 103
2	N-112A1	2 × 103
	N-112A2	2 × 103
	N-221A	2 × 104
	N-231B	2 × 105
	P-111A1	2 × 103
	P-112B2	2 × 103
	P-123A2	2 × 104

^aThe first letter in each designation indicates the PAH used for initial isolation of the organism (P, phenanthrene; N, naphthalene). 

^bSediment dilution from which the strain was isolated. 

^cStrain used in the complete 16S rDNA sequencing analysis.