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Video archives
Here, we establish an online video library where a series of movies relevant to motility are available. The miscellaneous category includes bacteria, eukaryotes, and archaea, viruses, proteins, and synthetic polymers. The movies that are meaningful in the biology field will be uploaded in both Japanese and English.
For the contributors who plan to upload your video, you should keep in mind the following suggestions:
(1) the video which is relative to the object of your research
(2) the video about microbe found in the research activity of the super-science high school or biological clubs are encouraged to upload
(3) Do not forget to add the link of your video which has been published (Please make sure the copyright)
(4) If you think some videos in the old textbook are valuable to upload, please let us know.
Video List
Popular Ranking
2016.12.27
Eukaryote
Euplotes sp.
Species name:Euplotes sp.
Bureau Swerage, Tokyo Metropolitan Government
The size of Euplotes is 100- 200 μm in length. Part of the body is similar to Aspidisca, the body is voided and the back of the body is raised but they are differ in its front end that has a wide triangular peristome, and the pattern of attachment of cilia and the large size of cilia. High flock dependency. They are similar to ladybird, so cilia look like small feet when they move.
2016.12.16
Eukaryote
Euplotes： a skillful hunter
Species name:Euplotes
AL-Museum AL-Museum
A large Euplotes ciliate has characteristic cirri at the front and rear ends of its body. By actively waving the cilia surrounding its mouth, it creates a whirlpool to attract food particles. Several prey are drawn into its mouth and transferred inside, but some manage to get free.
2016.12.15
Eukaryote
A feeble Euglena and a small organism
Species name:Euglena
AL-Museum AL-Museum
A Euglena and an unknown small organism are standing still in this view. Only the flagellum of the Euglena moves somewhat feebly.
2016.12.15
Eukaryote
Stationary Euglena
Species name:Euglena
AL-Museum AL-Museum
Here we can see nine Euglena cells that are completely still. Are they weakened, or have their sticky bodies become caught on the wall of the container? A small ciliate, Aspidisca, and a large slender ciliate pass nearby.
2016.12.15
Eukaryote
A flagellate surrounded by a brown shell
Species name:Euglena, Trachelomonas
AL-Museum AL-Museum
A round, dark brown flagellate with a long flagellum swims around for a while, then stops beside a particle, still waving its flagellum vigorously. A hard lorica surrounds the body, so this organism may belong to the group Trachelomonas.
2016.12.15
Eukaryote
A Euglena stuck to the container surface
Species name:Euglena
AL-Museum AL-Museum
This Euglena cannot move freely, probably because its flagellum or some part of its body is stuck on the container surface. It expands and contracts its body in a desperate struggle to get free.
2016.07.19
Eukaryote
Epistylis sp.
Species name:Epistylis sp.
Bureau Swerage, Tokyo Metropolitan Government
The size of Epistylis is 5-90 μm in length. It might look like Vorticella, but Epistylis does not have myonemes. Epistylis sometimes stay in clusters. No myonemes result in immobility of stalk and whole body, but its oral can contract individually.
2016.07.15
Eukaryote
Communication between different organisms?
Species name:Euglena, Cryptomonas or Chroomona
AL-Museum AL-Museum
An inactive flagellate is sitting completely still without moving. One after another, two small ciliates come to the front of the inactive flagellate, and stop as to check on it before they leave. Soon these ciliate return for another visit, and it looks like the two different kinds of organisms are communicating. To our surprise, the flagellate suddenly becomes active, contracting its body and shooting out of our view.
2016.04.28
Eukaryote
Caught, escaped and stuck again
Species name:Euglena (Euglena viridis)
AL-Museum AL-Museum
After an intense struggle, an euglena frees itself from a particle and swims around for a while. However it gets caught by another particle. It changes its flexible shape repeatedly in its effort to break free.
2015.10.26
Eukaryote
Entosiphon
Species name:Entosiphon sp.
Bureau of Swerage, Tokyo Metropolitan Goverment
Entosiphon has a width of 10-25 micrometers and length of 15-20 micrometers. The morphology is a slightly flat oval body. Two flagella extend from the pharyngeal region of the top portion. The outer cell body is rigid, and the cell shape is maintained. It swims with a waving tail. It is very hard to observe a vigorous vibrating front flagellum in the still image. On the other hand, the flagellum trailing backward is easy to observe. In the video, a vigorous vibrating front flagellum is observed very well.