Closely related intertidal and deep-sea Halomonhystera species have distinct fatty acid compositions

Table 3 SFA/UFA ratio, unsaturation index and highly unsaturated fatty acid (HUFA) proportion of GD1 (GD1_P) and H. hermesi sampled from their natural environment, GD1 under different conditions of salinity (25 and 34) temperature (16 and 4 °C), and presence of sulphide (NoS = absent and S = presence), and of the E. coli food source

Treatment—species	SFA/UFA	Unsaturation index	HUFA
GD1_P	0.40 (±0.06)	1.12 (±0.07)	4.28 (±0.16)
H. hermesi	0.10 (±0.02)	1.68 (±0.03)	11.78 (±0.88)
GD1 (25–16 °C—NoS)	0.50	0.97	8.52
GD1 (25–4 °C—NoS)	0.29	1.28	12.30
GD1 (25°–16°S)	0.40	1.14	7.97
GD1 (25°–4°S)	0.23	1.31	9.17
GD1 (34–16 °C—NoS)	0.44	1.02	11.02
GD1 (34–4 °C—NoS)	0.19	1.36	8.31
GD1 (34°–16°S)	0.23	1.32	8.37
GD1 (34°–4°S)	0.19	1.33	5.22
E. coli	14.41	0.06	0

SFA proportion of saturated fatty acid, UFA proportion of unsaturated fatty acids, HUFA proportion of highly unsaturated fatty acids defined as unsaturated fatty acids with a chain length ≥20 carbon atoms and ≥3 double bonds

ISSN: 1438-3888