Stentor: rhythm & excretion

Images made through a microscope. All subject types.

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NikonUser
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Joined: Thu Sep 04, 2008 2:03 am
Location: southern New Brunswick, Canada

Stentor: rhythm & excretion

Post by NikonUser »

Note the metachromal rhythm of the apical cilia and the food vacuole emptying the undigested food remains.
Olympus S Plan 10x, 2.5x photo relay eyepiece, 1.25x intermediate lens.
Image
NUM10093
NU.
student of entomology
Quote – Holmes on ‘Entomology’
” I suppose you are an entomologist ? “
” Not quite so ambitious as that, sir. I should like to put my eyes on the individual entitled to that name.
No man can be truly called an entomologist,
sir; the subject is too vast for any single human intelligence to grasp.”
Oliver Wendell Holmes, Sr
The Poet at the Breakfast Table.

Nikon camera, lenses and objectives
Olympus microscope and objectives

john sp.
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Joined: Sat Oct 23, 2010 3:55 pm
Location: Tennessee, USA

Post by john sp. »

What an amazing picture. It is interesting on so many levels.

Mitch640
Posts: 2137
Joined: Sun Aug 15, 2010 1:43 pm

Post by Mitch640 »

Very nice. I have not seen a stentor excrete like that. In fact, all my stentors have left for a better place. I need to go collect more before the river freezes. :)

NikonUser
Posts: 2693
Joined: Thu Sep 04, 2008 2:03 am
Location: southern New Brunswick, Canada

Post by NikonUser »

Thanks John and Mitch.
Although the ProtoSlo did slow this beast down it did not prevent it from slowly moving such that it was not possible to get a series of images to use for stacking; thus just a single frame from a thick, dense protozoan covered in cilia.
It looks like it had been feeding on Dinobryon as you can see the vase-shaped loricae being ejected. These loricae are composed of cellulose and protein and it seems strange they were not digested; protein should be digestible but cellulose not quite so easily digestible.
NU.
student of entomology
Quote – Holmes on ‘Entomology’
” I suppose you are an entomologist ? “
” Not quite so ambitious as that, sir. I should like to put my eyes on the individual entitled to that name.
No man can be truly called an entomologist,
sir; the subject is too vast for any single human intelligence to grasp.”
Oliver Wendell Holmes, Sr
The Poet at the Breakfast Table.

Nikon camera, lenses and objectives
Olympus microscope and objectives

rjlittlefield
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Location: Richland, Washington State, USA
Contact:

Post by rjlittlefield »

NikonUser wrote:you can see the vase-shaped loricae being ejected.
Ah, lovely! I had overlooked that detail.

--Rik

Mitch640
Posts: 2137
Joined: Sun Aug 15, 2010 1:43 pm

Post by Mitch640 »

as you can see the vase-shaped loricae being ejected
I totally missed that, but there they are, clear as day. Fascinating, and a great catch.

john sp.
Posts: 42
Joined: Sat Oct 23, 2010 3:55 pm
Location: Tennessee, USA

Post by john sp. »

I know that I probably should keep such loose associations to myself, but part of the charm of this picture for me is that I keep anthropomorphizing it into Bart Simpson's head.

John

Mitch640
Posts: 2137
Joined: Sun Aug 15, 2010 1:43 pm

Post by Mitch640 »

NU, I was going to ask, what's your technique for using the Protoslo? I have not used mine yet, waiting for equipment that would give decent images. Now I am ready to give it a try with the new T1i on the old scope. [The Fluophot may arrive tomorrow, Tuesday by 5pm for sure]

So how much did you use, did you use a depression slide, and did you add the Protoslo first or last?

And now I can't get Bart Simpson out of my mind. LOL

NikonUser
Posts: 2693
Joined: Thu Sep 04, 2008 2:03 am
Location: southern New Brunswick, Canada

Post by NikonUser »

The Bart Simpson analogy has ruined this image for me :cry:

(I'm not serious)

Mitch: see
HERE FOR PROTOSLO METHOD
NU.
student of entomology
Quote – Holmes on ‘Entomology’
” I suppose you are an entomologist ? “
” Not quite so ambitious as that, sir. I should like to put my eyes on the individual entitled to that name.
No man can be truly called an entomologist,
sir; the subject is too vast for any single human intelligence to grasp.”
Oliver Wendell Holmes, Sr
The Poet at the Breakfast Table.

Nikon camera, lenses and objectives
Olympus microscope and objectives

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