MicrobeHunter.com Microscopy Forum

Hello Forum,

usually you observe disc shaped testate amoebae like Arcella or Centropyxis sitting flat on your glass slide, like this Centropyxis discoides:



With some luck and glycerol I have been able to view the following two specimen from lateral. The next photos show some quite complex structural elements connecting dorsal and ventral shell, quite complex for a single-celler:





Diameters (from top) 240, 237 and 218 µm, Neofluar 40x, stacks of abt. 20 focal planes.

Cheers,
Hans

Nice work and a new view in a well known subject.

Those are great! It is quite true that we have been enjoying, in the main, just a single and therefore rather limited view of testate diatoms.

I had some unusual help when I managed a glimpse : viewtopic.php?f=6&t=7113&p

.

Good work.
Thanks

Hi Hans,
very interesting post! These amoeba look quite different from the side from what I would have expected. And the complexity of these single cell organisms always astonishes me. My view of a cell is more the orderly onion skin cell that a structure like this!

Bob

Hello,

thanks for your comments. Views which SEMs cannot provide. Here's another example:

.

Pontigulasia (= throat bridge) build internal bridges to prevent Rotifera from highjacking the shell.

Cheers,
Hans