A cyst of a protozoa ?

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mintakax
Posts: 175
Joined: Mon Jul 29, 2019 12:06 am
Location: Boulder CO, USA

A cyst of a protozoa ?

#1 Post by mintakax » Sat Sep 07, 2019 1:04 pm

I have seen this organism enough times to suspect it is common, but I cant seem to track it down (and I am inexperienced in tracking down). The closest I come is some kind of protozoan cyst, although these don't seem to have cilia ? The size was around 50um diameter.
The "stem" protrusion at the bottom is not part of this organism.

https://vimeo.com/358440555

Thanks,
Dan

Wes
Posts: 312
Joined: Sat Mar 09, 2019 12:58 pm

Re: A cyst of a protozoa ?

#2 Post by Wes » Mon Sep 09, 2019 4:47 pm

You can see a contractile vacuole pumping so I'd say its not a cyst. Could be a detached vorticella or some other ciliate.

Great video btw, I really like the quality!

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75RR
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Re: A cyst of a protozoa ?

#3 Post by 75RR » Mon Sep 09, 2019 5:03 pm

Could be a detached vorticella ...
Agree, though I would stick with the much more general ID of Peritrich
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mintakax
Posts: 175
Joined: Mon Jul 29, 2019 12:06 am
Location: Boulder CO, USA

Re: A cyst of a protozoa ?

#4 Post by mintakax » Tue Sep 10, 2019 2:32 pm

Ahh thank you Wes and 75RR. Last night I had a view of a detached vorticella that looked very much like what I had been seeing, so I will go with Peritrich.

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