What is going on here? Vorticella

carlos.uruguay · Post by **carlos.uruguay** » Tue Dec 24, 2013 7:47 am

In this video we see what we assume it's Vorticella.
Probably Vorticella microstoma.
They have a nucleus in G shape clearly visibly.
After a time lose its contractile stalk and swim freely.
But without changing its form or become zoosporas
(telotroch with cilia rear).
Some are looking to others. They touch.
Polarized oblique light.
40X objective.
Link:
http://www.youtube.com/watch?v=mr9I6IrdWxY
Regards
carlos

RogelioMoreno · Post by **RogelioMoreno** » Thu Dec 26, 2013 10:51 am

It nice to see them.

Rogelio

carlos.uruguay · Post by **carlos.uruguay** » Thu Dec 26, 2013 11:08 am

Thanks Rogelio.
The curious thing about this video
is that ciliate Vorticella moves freely without becoming telotroch with cilia rear.
I have seen this many times but i have not found documentation relative to this phenomenon
carlos

BJ · Post by BJ » Thu Dec 26, 2013 1:40 pm

Carlos,

another interesting video from you - and a very nice clean image.

I think that what you are seeing is just a normal phase in the life history.

In this paper, you will see in the introduction and especially in the discussion that Vorticella species which have free-swimming trophonts or switch between sessile and motile trophonts are quite common:

http://si-pddr.si.edu/handle/10088/18039

obrigado e boa sorte,

Brian

carlos.uruguay · Post by **carlos.uruguay** » Thu Dec 26, 2013 3:18 pm

Thank you so much Brian for so interesting text!!!!!
carlos

Marek Mis · Post by **Marek Mis** » Fri Dec 27, 2013 2:12 am

Nice video !

Marek

carlos.uruguay · Post by **carlos.uruguay** » Fri Dec 27, 2013 8:09 am

Thank you very much Marek

Jacek · Post by **Jacek** » Sat Dec 28, 2013 1:31 am

Nice video

carlos.uruguay · Post by **carlos.uruguay** » Sun Dec 29, 2013 6:37 am

Thank you Jacek