. 2014 Oct 1;14(10):848–858. doi: 10.1089/ast.2014.1176

Table 1.

A Bioreactor with Euglena gracilis Cells under Alternating Illumination (1 h Dark–1 h Light)

Light profile	r Value	Theta	Up (%)	Motile (%)	Velocity (μm/s)	Counts
DP	0.71	353.58	86.86	24.02	71.21	327.64
DP stdev	0.10	5.09	5.93	4.52	2.29	74.45
LP	0.44^a	337.98	71.74^a	17.55^a	75.81^a	214.35^a
LP stdev	0.13	13.41	7.51	3.78	2.40	62.23
CL	0.33^a,b	336.64	66.17^a,b	16.17^a,b	68.89^a,b	219.76^a
CL stdev	0.06	12.53	3.87	2.29	2.36	42.07

Mean values of movement parameters at different illumination phases. The table shows average and standard deviation (stdev) of all recorded movement parameters of the dark and light cycles as well as during subsequent constant illumination.

r Value: precision of orientation. Theta: mean direction of movement (upward=0° or 360°, respectively, downward=180°). Up: upward-swimming cells (%). Motile: fraction of motile cells (%). Velocity: mean velocity of cell culture (μm/s). Counts: average of analyzed cells per minute (for detailed description of movement parameters, see the Materials and Methods section).

DP, movement of the cells in the dark phase; LP, movement of the cells in the light phase of the cycle; CL, movement of the cells under constant illumination (no light-dark cycle).

^{^a}

Significant differences of movement behavior between (i) dark phase and light phase and (ii) dark phase and constant light.

^{^b}

Significant differences between constant light and light period during light-dark cycles.