Urocentrum turbo : Conjugating or Dividing ?

Thomas Ashcraft · Post by **Thomas Ashcraft** » Fri Nov 10, 2006 9:41 am

(Image extracted from movie frame : 400x magnification)

In the above image I am wondering if these Urocentrum turbos are in a state of conjugation or division? I often see Urocentrums dividing but they look more like the following image, dividing from top to bottom rather than side to side:

(Image extracted from movie : 200x magnification )

So are the Urocentrums in the top image enjoying a moment of conjugation?

Thanks for any insight. - Tom in New Mexico

Canon S3 IS
Meiji microscope and optics

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bernhardinho · Post by **bernhardinho** » Fri Nov 10, 2006 2:47 pm

Hi Tom,

Ciliates divide by transverse binary fission , except for the peritrichs. So I think the first image shows conjugation, the second, as you mentioned, cell division.

Bernhard

bernhardinho · Post by **bernhardinho** » Fri Nov 10, 2006 2:48 pm

Sorry, something went wrong with the server communication

Bernhard

Thomas Ashcraft · Post by **Thomas Ashcraft** » Fri Nov 10, 2006 3:18 pm

Hi Bernhard,

Thanks for your reply.

Yes, I think it is conjugation but can't find much information on the web when I google " Urocentrum turbo conjugation". I couldn't find any images.

I made a page of short movies at
http://www.heliotown.com/Urocentrum_tur ... ation.html

Tom

bernhardinho · Post by **bernhardinho** » Fri Nov 10, 2006 3:33 pm

Hi,

may be that's asked to much. But if you google "ciliates conjugation", you get lots of entries, i.e. this one: http://combio.abo.fi/seminars/Chang_10Mars06.pdf

Cheers

Bernhard

Thomas Ashcraft · Post by **Thomas Ashcraft** » Sat Nov 11, 2006 6:34 am

Bernhard wrote: " But if you google "ciliates conjugation", you get lots of entries, i.e. this one: http://combio.abo.fi/seminars/Chang_10Mars06.pdf "

Many thanks Bernhard,

I haven't been thinking in terms of "ciliates" so this will be a helpful clarifier in future searches.

Tom