Dinobryon utriculus

ralfwagner · Post by **ralfwagner** » Sat Dec 30, 2006 5:05 am

Hello,

Dinobryon is commonly known as a formation of several cells, fighting together through the water-drop. Here I want show a species, Dinobryon utriculus, that is found as single cells, attached to a substrate like filamentous algae, e. g. a zygnema:

With phase contrast you can see the stem with which D. utriculus is attached to the Zygnema and also the typical two falgella, one short and a long one.

I think it is remarkable, that D. utricukus with its stem is even able to overcome the mucous layer that surrounds Zygnema.

There is also a small video (~400kb, divx-coded) available. It shows the movement of the two flagella:

http://www.dr-ralf-wagner.de/Bilder/Din ... um-avi.avi

Ken Ramos · Post by **Ken Ramos** » Sat Dec 30, 2006 5:32 am

Great shots and video there Ralf. These are some interesting and beautiful organisms, especailly those in colonies.

Charles Krebs · Post by **Charles Krebs** » Sat Dec 30, 2006 9:48 am

Ralf... very nice! I really enjoyed the phase phase shots (and phase video).

Looks like a microscopic champaigne glass.