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. 2002 Jan;68(1):245–253. doi: 10.1128/AEM.68.1.245-253.2002

FIG. 3.

FIG. 3.

cPCR for amoA gene and Nitrospira sp. 16S rDNA. (A) Agarose gel containing cPCR products of the amoA gene from a mixed-liquor sample from a municipal WWTP (sample M-09-07-00), obtained by procedures described in Materials and Methods. (B) Determination of the competition equivalence point for the data shown in panel A. (C) Agarose gel containing cPCR products of the Nitrospira 16S rDNA gene from a mixed-liquor sample from a municipal WWTP (sample M-04-01-00). (D) Determination of the competition equivalence point for the data shown in panel C. Fl., fluorescence; Corr. Fluor., corrected fluorescence. The equations and fits of the lines are shown.