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Amoeba meets its nemesis

Posted: Mon Oct 08, 2018 4:51 am
by 75RR
Could not identify the amoeba nor indeed get confirmation that it is one ...

Perhaps the topic title should allow for this and read Potential Amoeba meets its nemesis.

Doesn't quite have the same ring to it ...

Note: Have amended video title to Spirotrich


Re: Amoeba meets its nemesis

Posted: Mon Oct 08, 2018 5:44 pm
by Aenima
wow, interesting capture !

I've seen something like this myself - or at least part of it. Had the appearance of a cilliate 'trapped' inside a round shell or membrane - twitching and spinning around - i got the feeling that if i watched it long enough i'd see it 'hatch'?

Might be related or might not - but either way, I really like that video and hope to see any info you find :)

Re: Amoeba meets its nemesis

Posted: Mon Oct 08, 2018 5:54 pm
by Hobbyst46
Intriguing event!

Re: Amoeba meets its nemesis

Posted: Mon Oct 08, 2018 8:22 pm
by 75RR
Thanks Aenima and Hobbyst46
I've seen something like this myself - or at least part of it. Had the appearance of a cilliate 'trapped' inside a round shell or membrane - twitching and spinning around - i got the feeling that if i watched it long enough i'd see it 'hatch'?
Sounds like it could be something similar, only not hatched but more likely a ciliate entering a test/shell to catch a amoeba and then having difficulty extracting itself. That at least is what I gathered from what I saw and videoed.

Re: Amoeba meets its nemesis

Posted: Mon Oct 08, 2018 11:17 pm
by actinophrys
Did you see it enter? Because my impression is that this looks a lot like a ciliate escaping from a resting cyst; it would be an unusual test, having almost no opening to pass out through.

Re: Amoeba meets its nemesis

Posted: Mon Oct 08, 2018 11:37 pm
by SunshineLW
actinophrys wrote:Did you see it enter? Because my impression is that this looks a lot like a ciliate escaping from a resting cyst; it would be an unusual test, having almost no opening to pass out through.
I agree. It looks like the excystation of an organism.

Re: Amoeba meets its nemesis

Posted: Tue Oct 09, 2018 2:01 am
by Bruce Taylor
actinophrys wrote:Did you see it enter? Because my impression is that this looks a lot like a ciliate escaping from a resting cyst;
I agree. It's a spirotrich ciliate (maybe a euplotid?), emerging from its cyst. Adoral membranelles are visible, early on.

Re: Amoeba meets its nemesis

Posted: Tue Oct 09, 2018 5:08 am
by 75RR
Many thanks actinophrys, SunshineLW and Bruce Taylor

My apologies Aenima

Going with spirotrich ciliate emerging from its cyst (have amended video title and intro)

These are the first 45 seconds of the original 5 min video:


Re: Amoeba meets its nemesis

Posted: Thu Oct 11, 2018 9:48 am
by SunshineLW
Nice work on figuring it out. Its an awesome video.

Re: Amoeba meets its nemesis

Posted: Thu Oct 11, 2018 4:06 pm
by einman
Very Nice!