Videos

Finger Formation 

Videos of finger formation with wild-type cells. The light source (warm white LED) is incident from the left. All microscopy was done at 4x magnification.

Video details:
Video sped up 600x, each frame was taken 10 min apart
Total duration of video: 24hours

Videos of finger formation with the ΔtaxD1 mutant. The light source (warm white LED) is incident from the left. All microscopy was done at 4x magnification. Movies are sped up 600x, at 10 min per frame.

Video details:
Video sped up 600x, each frame was taken 10 min apart
Total duration of video: 24hours

Changing Light Direction  

Depicting cells inside a finger-like projection.
From an original light source incident from the bottom of the frame, the direction of the light source was changed such that it was now incident from the left of the frame.
You can observe cells move in response to the light direction change, and then move into neighboring fingers.

Video details:
Video sped up 100x, each frame was taken 10 sec apart
Total duration of video: 240 min 

Video details:
Video sped up 200x, each frame was taken 10 sec apart
Total duration of video: 60 min 

Light On-off Experiement 

Cells are moving in finger-like projections toward a white LED light source incident from the left.

Video details:
Video sped up 100x, each frame was taken 10 sec apart
Total duration of video: 20 min
Video taken 1 day after inoculation

The original light source was turned off on these cells that were moving in the finger-like projections. You can observe the cell-dense region at the tip of the fingers lose its cohesion, and cells disperse in all directions.

Video details:
Video sped up 100x, each frame was taken 10 sec apart
Total duration of video: 20 min
Video taken 1 day after inoculation

After experiencing the light-off condition, the light source was renewed, incident from the left. You can observe the cells regain their movement toward the light source.

Video details:
Video sped up 100x, each frame was taken 10 sec apart
Total duration of video: 20 min
Video taken 1 day after inoculation

Other

BRIAN 2011 10 15 cyanobacteria growth

ciw1 redlight 

Polysaccharide movie merged