Cyanobacterium Oscillatoria high speed video
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- carlos.uruguay
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Cyanobacterium Oscillatoria high speed video
Phase contrast
Oblique polarized light
20X and 40X objectives
Panasonic GH4 camera
Video link:
https://www.youtube.com/watch?v=Z7BZDCKwWOw
Video frame only for preview (to observe the movement, watch the video):
Regards
carlos
Oblique polarized light
20X and 40X objectives
Panasonic GH4 camera
Video link:
https://www.youtube.com/watch?v=Z7BZDCKwWOw
Video frame only for preview (to observe the movement, watch the video):
Regards
carlos
- carlos.uruguay
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- carlos.uruguay
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Thanks Walter. Yes, all the times I have observed them, they move by turning, they advance and then they retreat. I do not know the mechanism by which they manage to move.WalterD wrote:Very interesting clip! It's almost like it has got its own propulsion.
See:
https://www.youtube.com/watch?v=VPNj7n6lTf8
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Nice video, Carlos!carlos.uruguay wrote:I do not know the mechanism by which they manage to move.
The old theory for "gliding motility" was that it was accomplished through the secretion of "polysaccharide slime." However, recent work suggest that polysaccharide secretions provide a sort of track for the colony to glide along, but the motility is provided by small filaments called "Type IV pili", which are repeatedly extended and retracted by the cell, like tiny "grappling hooks."
http://onlinelibrary.wiley.com/doi/10.1 ... 13242/full
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- carlos.uruguay
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Tnahks Burce!!!!!!!!!!!!!!Bruce Taylor wrote: Nice video, Carlos!
The old theory for "gliding motility" was that it was accomplished through the secretion of "polysaccharide slime." However, recent work suggest that polysaccharide secretions provide a sort of track for the colony to glide along, but the motility is provided by small filaments called "Type IV pili", which are repeatedly extended and retracted by the cell, like tiny "grappling hooks."
http://onlinelibrary.wiley.com/doi/10.1 ... 13242/full
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- carlos.uruguay
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- carlos.uruguay
- Posts: 5358
- Joined: Thu Feb 23, 2012 8:05 pm
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