Table 2.

Timings of pellicle formation, average of 6 biological replicates with ± denoting the standard deviation and Bonferroni adjusted P-values of pairwise t-tests between wild-type and ΔsrfAC mutant for each strain, ∗ = below significance cut-off 0.05, NS = not significant.

Isolate	Pellicle timing, wild type	Pellicle timing, ΔsrfAC	Difference	P-value
MB8_B1	22.67 ± 1.99	39.58 ± 7.52	16.92 ± 7.02	3.34E-04 ∗
MB8_B7	20.25 ± 0.69	23.83 ± 2.02	3.58 ± 1.93	2.08E-03 ∗
MB8_B10	22.58 ± 5.28	26.33 ± 1.25	3.75 ± 4.58	1.21E-01 NS
MB9_B1	20.75 ± 1.72	23.92 ± 0.80	3.17 ± 1.97	2.22E-03 ∗
MB9_B4	30.92 ± 2.84	29.83 ± 1.44	−1.08 ± 2.46	4.23E-01 NS
MB9_B6	23.67 ± 1.47	30.17 ± 4.83	6.50 ± 4.31	1.03E-02 ∗
P8_B1	19.92 ± 0.86	23.42 ± 1.80	3.50 ± 1.79	1.57E-03 ∗
P8_B3	20.33 ± 0.61	24.58 ± 2.04	4.25 ± 2.07	6.20E-04 ∗
P9_B1	20.33 ± 0.41	18.25 ± 1.08	−2.08 ± 1.28	1.32E-03 ∗
P5_B1	19.83 ± 0.82	32.00 ± 8.11	12.17 ± 8.18	4.40E-03 ∗
73	20.92 ± 1.43	23.58 ± 3.63	2.67 ± 5.02	1.25E-01 NS
75	17.25 ± 0.69	15.83 ± 1.21	−1.42 ± 0.92	3.20E-02 ∗