Fig. 1: Nitrite kinetics of NO2− oxidation rates at stations PS2 and PS3.
From: Microbial niche differentiation explains nitrite oxidation in marine oxygen minimum zones
Samples were from oxycline (a, b, c, d), ODZ top (e, f, g, h), and ODZ core (i, j, k, l), respectively. Closed circles indicate incubation under low O2 conditions (0.3–0.7 μM), and open circles indicate high O2 conditions (2.3–8.7 μM). Solid lines indicate a Km significantly larger than zero. The adjusted R square (r2) for each fitting curve is shown. Error bars around each point show standard errors of linear regression slope calculated from time course incubations with five bottles. Sampling depths for station PS2: Oxycline (90 m), ODZ top (120 m), and ODZ core (250 m); for station PS3: Oxycline (33 m), ODZ top (80 m), and ODZ core (160 m).
