Details about the videos :

- "Aerotaxie_Bulle.avi" => 		Sinorhizobium meliloti bacteria at OD=4, close to a small air bubble (~675 microns of external diameter) trapped in a sealed chamber. 
					The movie is taken in phase-contrast in 10X, at 10Hz. The movie is sped up 400 times.

- "Billes_Aerotaxie.avi" =>		Fluorescent polystyrene beads (5 microns of diameter and 5.10-4 g/mL of volumic concentration) in a suspension of Burkholderia contaminans (not fluorescent) at OD=5.
					The movie is taken in YFP fluorescence in 2.5X (5.3x5.3mm). It takes place in one corner of a sealed chamber (310 microns of height), where bacteria are doing aerotaxis towards the edges.
					The movie is sped up 100 times.

- "Billes_Bioconvection.avi" =>		Fluorescent polystyrene beads (2 microns of diameter and 2.10-4 g/mL of volumic concentration) in a suspension of Burkholderia contaminans (not fluorescent) at OD=0.1.
					The movie is taken in YFP fluorescence in 2.5X (5.3x5.3mm) after ~160min. It takes place in one corner of a chamber sealed by PDMS on top but with a height of 620 microns.
					The movie is sped up 200 times. Once the OD becomes large enough, the bacteria are creating an oxygen gradient from top to bottom and thus doing aerotaxis. 
					An instability then triggers due to the higher density of bacteria, which creates hexagonal convection cells. We can see the beads getting displaced by those cells at the bottom of the chamber.

- "Billes_Clusters.avi"	=>		Fluorescent polystyrene beads (10 microns of diameter and 5.10-3 g/mL of volumic concentration) in a suspension of Burkholderia contaminans (not fluorescent) at OD=5.
					The movie is taken in YFP fluorescence in 2.5X (5.3x5.3mm). It takes place in the middle of a chamber sealed by PDMS (310 microns of height), where bacteria are swimming freely.
					The movie is sped up 600 times.

- "Billes_Clusters_Dynamique.avi" =>	Fluorescent polystyrene beads (5 microns of diameter and 5.10-3 g/mL of volumic concentration) in a suspension of Burkholderia contaminans (not fluorescent) at OD=5.
					The movie is taken in YFP fluorescence in 2.5X (5.3x5.3mm), 10 minutes after the sealing of the chamber.
					It takes place in the middle of a chamber sealed by PDMS (310 microns of height), where bacteria are swimming freely. The movie is in real time.

- "Billes_Clusters_Dynamique_2.avi" =>	Same as "Billes_Clusters_Dynamique.avi" but the image size is (1.8x1.8mm).

- "Billes_Contact.avi" =>		Fluorescent polystyrene beads (5 microns of diameter and 5.10-5 g/mL of volumic concentration) in a suspension of Burkholderia contaminans (not fluorescent) at OD=5.
					The movie is taken in phase-contrast in 10X (0.13x0.13mm). It takes place in the middle of a chamber sealed by PDMS (310 microns of height), where bacteria are swimming freely.
					The movie is in real time.

- "Run-reverse.avi" =>			Trajectory of a Sinorhizobium meliloti exhibiting 3 runs separated by 2 reverses. The movie was taken in phase-contrast in 63X (56x94 microns). The movie is in real time.