Fig. 3From: Bioreduction of Cr(VI) by Bacillus sp. QH-1 isolated from soil under chromium-containing slag heap in high altitude areaSEM photos of Bacillus sp. QH-1 cells after growth 48 h in LB medium containing different concentration of Cr(VI) [(a) without Cr(VI), (b) with 25 mg/L Cr(VI), (c) with 100 mg/L Cr(VI), (d) with 200 mg/L Cr(VI)]. Scale bars: 1 μmBack to article page