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. 2016 Dec 20;11(4):896–908. doi: 10.1038/ismej.2016.179

Figure 4.

Figure 4

The effect of acetylene exposure on AOA and AOB in Pendleton noncropped soil. Evaluation of biosynthesis potential (RNP) of AOA (a) or AOB (b) in comparison with potential nitrification activity (NP) over a range of temperatures in Pendleton noncropped soil. Soils were inactivated and activity recovered at the same temperature. Error bars represent the s.d. of three replicates. The asterisks (*) represent the NP and RNP that were significantly different at the same temperature (P>0.05). The effect of acetylene on the residual Topt activity of AOA at 37 °C (c) or AOB at 16 °C (d). Soil was acetylene-inactivated at 4 through 46 °C for 6h, degassed, and transferred to 37 °C for measurement of AOA residual activity, or 16 °C for measurement of AOB residual activity. Residual activity measured between 0 and 12 h was considered to be due to AMO that was not acetylene-inactivated. Error bars represent the s.d. of three replicates. Lower case letters indicate significant differences between residual activities (P<0.01). Bars with the same letter are not significantly different.