Table 2

Comparison of three separate adherence and invasion experiments
Isolate used Input bacteria (cfu/ml) Adherent bacteria (cfu/ml)

Adherent bacteria

as % of input

Invaded bacteria (cfu/ml)

Invaded bacteria

as % of input

% Invaded/adherent (%I/IA)
Experiment 1
81-176 (+ve control) (5.2 ± 0.8) × 107 (3.3 ± 1.0) × 106 6.5 (6.3 ± 2.2) × 105 1.22 18.8
00-2544 (+ prophage) (3.7 ± 0.2) × 107 (3.8 ± 1.2) × 105 1.0 (2.7 ± 1.1) × 104 0.07 7.0
00-2538 (+ prophage) (3.7 ± 0.9) × 107 (8.7 ± 0.1) × 105 2.4 (2.0 ± 0.8) × 105 0.54 23.0
00-2425 (+ prophage) (4.1 ± 0.4) × 107 (6.4 ± 0.8) × 105 1.6 (2.0 ± 0.4) × 105 0.48 31.9
00-2426 (− prophage) (4.1 ± 0.1) × 107 (1.2 ± 0.4) × 105 0.3 (1.0 ± 0.7) × 103 0.002 0.8
E. coli Top10 (invasion -ve) (2.2 ± 0.1) × 107 (5.2 ± 1.0) × 105 2.3 (9.5 ± 0.2) × 103 0.042 1.8
Experiment 2
81-176 (+ve control) (2.1 ± 0.5) × 107 (3.5 ± 1.2) × 105 1.6 (2.2 ± 0.3) × 105 1.04 64.3
00-2544 (+ prophage) (1.8 ± 0.8) × 107 (3.5 ± 2.4) × 105 1.9 (6.5 ± 1.5) × 104 0.33 18.8
00-2538 (+ prophage) (3.4 ± 0) × 107 (3.9 ± 2.3) × 105 1.1 (7.0 ± 0.9) × 104 0.20 17.9
00-2425 (+ prophage) (3.3 ± 0.6) × 107 (5.6 ± 1.5) × 105 1.7 (8.4 ± 3.5) × 104 0.26 15.0
00-2426 (− prophage) (3.4 ± 0.2) × 107 (4.0 ± 2.1) × 104 0.1 (8.7 ± 3.3) × 102 0.003 2.2
E. coli Top10 (invasion -ve) (1.8 ± 0.2) × 107 (1.7 ± 0.9) × 105 1.0 (9.6 ± 1.6) × 103 0.055 5.7
Experiment 3
81-176 (+ve control) (3.4 ± 0.1) × 107 (1.8 ± 0.3) × 106 5.4 (1.0 ± 0.6) × 105 0.30 5.6
00-2544 (+ prophage) (2.3 ± 0.3) × 107 (3.6 ± 1.3) × 105 1.6 (4.1 ± 2.0) × 104 0.18 11.4
00-2538 (+ prophage) (3.8 ± 0.4) × 107 (6.3 ± 2.8) × 105 1.7 (1.3 ± 0.3) × 105 0.33 20.2
00-2425 (+ prophage) (4.3 ± 1.0) × 107 (1.1 ± 0.2) × 106 2.5 (2.5 ± 1.0) × 105 0.58 22.8
00-2426 (− prophage) (3.8 ± 1.6) × 107 (1.6 ± 0.3) × 105 0.4 (5.5 ± 6.0) × 102 0.001 0.35
E. coli Top10 (invasion -ve) (2.0 ± 0.01) × 107 (2.1 ± 0.6) × 105 1.1 (4.9 ± 2.2) × 103 0.024 2.3

Clark et al.

Clark et al. BMC Microbiology 2012 12:269   doi:10.1186/1471-2180-12-269

Open Data