Table 1.

Percent of M. maripaludis and D. vulgaris cells in planktonic and biofilm phases over time [row 1 early (0 h), 2 intermediate (48 h), 3 steady-state (240 h)] in a reactor containing both growth phases, a reactor where biofilm has been removed (row 4), a reactor with an increased loading rate (row 5), and a reactor containing a coculture of ΔpilA mutant D. vulgaris with wild-type M. maripaludis (row 6).

Rows		% M. maripaludis biofilm	% D. vulgaris biofilm	% M. maripaludis planktonic	% D. vulgaris planktonic
1	Biofilm and planktonic early	3% ± 0.8	97% ± 0.8	26% ± 13.7	69% ± 11.1
2	Biofilm and planktonic intermediate	22% ± 1.5	78% ± 1.5	23% ± 12.1	73% ± 10.6
3	Biofilm and planktonic steady state	31% ± 1.4	69% ±1.4	36% ±10.8	59% ±2.2
4	WT planktonic only	0	0	13% ± 1.9	82% ± 1.9
5	Biofilm and planktonic increased loading rate	18% ± 1.5	82% ± 1.5	22% ± 5.9	73% ± 3.3
6	ΔpilA planktonic only	0	0	19% ± 1.4	81% ± 1.4

Error is the 95% confidence interval. The number of images analyzed for each time point is early n = 146, intermediate n = 269, steady-state n = 2,118, biofilm removed n = 140, increased loading rate n = 174, and ΔpilA n = 120.