This colourless freshwater protozoan rotated while swimming.
I would appreciate getting an ID.
Length 0.21 mm
Olympus BHS DIC 20x S Plan Apo, 1.25x intermediate lens, 2.5x NFK relay lens, Nikon D90, flash.
small Stentor (Protozoan)
Moderators: rjlittlefield, ChrisR, Chris S., Pau
small Stentor (Protozoan)
EDIT: title changed from "Protozoa for ID"
This colourless freshwater protozoan rotated while swimming.
I would appreciate getting an ID.
Length 0.21 mm
Olympus BHS DIC 20x S Plan Apo, 1.25x intermediate lens, 2.5x NFK relay lens, Nikon D90, flash.
This colourless freshwater protozoan rotated while swimming.
I would appreciate getting an ID.
Length 0.21 mm
Olympus BHS DIC 20x S Plan Apo, 1.25x intermediate lens, 2.5x NFK relay lens, Nikon D90, flash.
Last edited by NikonUser on Wed Dec 15, 2010 6:35 pm, edited 1 time in total.
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
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
Looking at this photo, I'm reminded of Arturo's Stentor photo with its "string of pearls" nucleus.
http://www.photomacrography.net/forum/v ... hp?t=11125
John
http://www.photomacrography.net/forum/v ... hp?t=11125
John
Thanks John, yes looks very close.
A lot different from the much larger, colourful, Stentor sp. (spp.) that I see lots of
AS HERE
A lot different from the much larger, colourful, Stentor sp. (spp.) that I see lots of
AS HERE
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
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
If we are right about this being a stentor, it would appear to be in its free-swimming mode. I would assume that the oral area would be towards the upper right.
DIC gives a very strong cross-sectional view, and since what appear to be the nuclei are so visible, this is probaby a mid-depth view. The part that puzzles me somewhat is the area that is also towards the upper right, just inside the cell. I'm assuming that this is part of the "mouth", but I can't work out the 3D image enough to place it.
Stentors are ciliated, beyond what readily is seen around the oral zone. If you look at the earlier picture that NU links to (his green stentor), as well as Arturo's photos that I link to, you can see how the surface is covered with rows of cilia. The present image does a nice job of highlighting them at the edge of the cell.
DIC gives a very strong cross-sectional view, and since what appear to be the nuclei are so visible, this is probaby a mid-depth view. The part that puzzles me somewhat is the area that is also towards the upper right, just inside the cell. I'm assuming that this is part of the "mouth", but I can't work out the 3D image enough to place it.
Stentors are ciliated, beyond what readily is seen around the oral zone. If you look at the earlier picture that NU links to (his green stentor), as well as Arturo's photos that I link to, you can see how the surface is covered with rows of cilia. The present image does a nice job of highlighting them at the edge of the cell.
John, this guy was certainly a free-swimming stage; very active and lots of rotating; never got a shot of the oral surface but here are a couple of other images:john sp. wrote:I I'm assuming that this is part of the "mouth", but I can't work out the 3D image enough to place it.
NUM10128
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
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