Fig. 2From: Characterization of two keystone taxa, sulfur-oxidizing, and nitrate-reducing bacteria, by tracking their role transitions in the benzo[a]pyrene degradative microbiomeNitrate transformation and BaP degradation rates in microcosms. The nitrate concentration (A), nitrite concentration (B), ammonium concentration (C), and BaP degradation ratios (D) in the microcosms. BN, N, B, and CK indicate the microcosms under BaP and nitrate addition, nitrate replenishment, BaP contamination, and without any additionBack to article page