TABLE 1.

Comparison of the cellular fatty acid compositions of isolates KT-2/3-3 and KT-8-13 with those of Halanaerobium praevalens, Halothermothrix orenii, and Halanaerobacter lacunaris

Fatty acida	% in:
	KT-2/3-3	KT-8-13	Halanaerobium praevalens	Halothermothrix orenii	Halanaerobacter lacunaris
14	0.8	1.2	9.6	3.5	3.7
14:1, Δ7	0.2	0.2	2.9	ND	0.5
14:1, Δ9	0.1	0.0	0.9	ND	ND
i15	0.1	<0.1	0.1	0.1	0.2
a15	0.1	<0.1	<0.1	0.1	0.2
15	0.2	0.4	0.3	0.2	0.6
15:1, Δ7	0.1	0.1	0.2	ND	ND
15:1, Δ9	0.1	0.1	0.4	ND	ND
i16	0.2	0.1	<0.1	0.4	0.2
16	17.3	24.8	17.9	54.9	20.9
16:1, Δ7cis	7.3	10.1	12.3	ND	1.2
16:1, Δ9cis	34.2	35.0	28.3	1.4	34.2
16:1, Δ9trans	8.5	2.2	4.8	0.5	4.9
16:1, Δ11cis	20.4	13.3	17.5	ND	1.1
i17	0.2	<0.1	0.1	0.2	0.1
a17	0.2	0.2	0.1	0.3	ND
17	0.2	0.2	<0.1	0.6	0.5
cy17	1.7	1.6	0.2	0.2	0.6
17:1	0.2	0.6	0.1	ND	2.6
i18	NDb	<0.1	0.1	0.1	ND
a18	ND	ND	<0.1	<0.1	ND
18	2.5	1.9	2.7	29.4	5.3
18:1, Δ9cis	0.5	1.8	0.9	3.3	10.3
18:1, Δ9trans	0.5	0.3	0.1	2.0	2.2
18:1, Δ11cis	2.0	5.0	0.4	1.0	1.0
18:1, Δ11trans	0.6	ND	ND	0.1	0.4
18:1, Δ13cis	1.4	0.4	ND	ND	ND
i19	ND	ND	ND	0.3	1.4
a19	0.5	0.4	0.1	1.2	7.5
19	ND	ND	<0.1	0.2	0.4

^aFatty acids are designated by total number of carbon atoms:number of double bonds. The number after Δ indicates the position of the double bond relative to the carboxylic (Δ) end of the molecule, with cis and trans geometry indicated. cy, cyclopropyl ring; i and a, iso- and anteiso-branched fatty acids, respectively. The concentrations of total fatty acids of KT-2/3-3, KT-8-13, Halanaerobium praevalens, Halothermothrix orenii, and Halanaerobacter lacunaris were 160.9, 228.2, 1,017.4, 187.3, and 45.6 μg g (dry weight)^-1, respectively. 

^bND, none detected.