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Rumen ciliates : Isotricha spp.

 
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Gerd



Joined: 16 Feb 2005
Posts: 160
Location: near Cologne, Germany

PostPosted: Thu Feb 16, 2006 2:30 pm    Post subject: Rumen ciliates : Isotricha spp. Reply with quote



Rumen ciliates : Isotricha spp. The upper pic is focused on the middle of the ciliate.
You can see the vestibulum and the cytostome. Macronucleus and micronucleus are beneath
the cytostome. There also are vacuoles and characteristic starch grains.



The lower pic is focused on the ciliate surface. The cilia form an hairy
impression.....
There are thousands of ciliates in one small drop. I had to made very thin
samples to take shots with only one single ciliate to see...
About 2% of the weight of rumen content are ciliates, if you have 100 kg of rumen content,
there are 2 kg of ciliates !!
Objective 40x, DIC, flash.
Thanks,
Gerd
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rjlittlefield



Joined: 06 May 2005
Posts: 727
Location: Richland, WA, USA

PostPosted: Thu Feb 16, 2006 3:10 pm    Post subject: Reply with quote

Gerd,

Fantastic photos -- thanks for sharing Exclamation

Can you recommend a good reference on the biology of these beasts? Web search quickly turned up "Rumen Holotrich Ciliate Protozoa", Alan G. Williams, Microbiological Reviews, Mar. 1986, p. 25-49. It looks good, but it's 20 years old now and I'm wondering if there's something better.

--Rik
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Ken Ramos
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Joined: 04 May 2004
Posts: 4809
Location: Western North Carolina

PostPosted: Fri Feb 24, 2006 3:33 am    Post subject: Reply with quote

These are some fantastic shots Gerd, glad you posted them. Some interesting facts that you have presented with your images. The ciliate really looks good on the front cover. Congratulations Gerd! Very Happy
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Reposts of my images within the galleries are welcome, as are constructive critical critiques.
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gpmatthews



Joined: 27 Apr 2004
Posts: 539
Location: Horsham, UK

PostPosted: Sun Feb 26, 2006 12:54 pm    Post subject: Reply with quote

Congrats - looks really good
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Graham
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Sortvind



Joined: 26 Mar 2006
Posts: 24
Location: Norway

PostPosted: Mon Mar 27, 2006 6:41 am    Post subject: Reply with quote

Once again..Very fasinated!
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