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Table 1 The growth of the wild type and variants during 21 days incubation. Data expressed as mean ± standard deviation

From: Evaluation of the benzo[a]anthracene biodegradation by animal bioassays

Variants OD 600 of the Variants
Initial (zero time) 1 days 2 days 7 days 14 days 21 days
Wild type 1.40 ± 0.20 1.15 ± 0.01 1.17 ± 0.03 1.02 ± 0.03 0.87 ± 0.01a 0.87 ± 0.05a
V1 1.07 ± 0.02 0.92 ± 0.03 0.96 ± 0.03 0.78 ± 0.01 0.75 ± 0.00 0.64 ± 0.06 a
V2 1.12 ± 0.03 0.87 ± 0.02 0.87 ± 0.05 0.71 ± 0.08 0.67 ± 0.01 0.60 ± 0.08a
V3 0.96 ± 0.01 0.81 ± 0.03 0.64 ± 0.01 0.42 ± 0.05 0.33 ± 0.03a 0.39 ± 0.00
V4 1.07 ± 0.04 0.97 ± 0.09 0.96 ± 0.01 0.59 ± 0.01 0.42 ± 0.06a 0.50 ± 0.06
V5 1.06 ± 0.06 0.88 ± 0.01 0.88 ± 0.04 0.56 ± 0.04a 0.57 ± 0.02a 0.57 ± 0.02a
  1. asymbol mean the result of O D is significant from the initial for the same strain. The mean difference is significant at the 0.05 level. Data expressed as mean ± standard deviation significant results indicate OD decreased at that day as compared by the initial day for the same strain