Red Stentor /DF/

Jacek · Post by **Jacek** » Tue Apr 03, 2012 4:24 am

Red Stentor sp.

RogelioMoreno · Post by **RogelioMoreno** » Tue Apr 03, 2012 4:32 am

Nice images, I would like to find one red stentor.

Rogelio

Mitch640 · Post by **Mitch640** » Tue Apr 03, 2012 5:33 am

I'd like to see any Stentor. It's been more than a year since I have seen one. You have gotten beautiful images of this one. Are they common in your area? Or am I just looking in the wrong places?

Chris_M · Post by **Chris_M** » Tue Apr 03, 2012 9:33 am

Superb! I found many times blue and green Stentor in pond.

Jacek · Post by **Jacek** » Tue Apr 03, 2012 10:20 am

Maybe a matter of eating Stentor, I saw red for the first time.

arturoag75 · Post by **arturoag75** » Wed Apr 04, 2012 12:44 am

Excellent shots!
Arturo

Marek Mis · Post by **Marek Mis** » Wed Apr 04, 2012 2:21 am

Jacek,

Very good dark field shots. Nice details and contrast.
How do you realize this technique ?

Marek

Jacek · Post by **Jacek** » Wed Apr 04, 2012 3:39 am

In the area of my city is a lot of ponds and lakes, Stentor is in me is very common.

Marek
use of such a microscope:
http://deltaoptical.pl/blizej_zycia/mik ... d1678.html

and condenser to him:
http://deltaoptical.pl/kondensor-do-cie ... d1581.html

Optics have all the listed primarily on the Nikon / lenses, glasses /

I'm using a second microscope / Biolar B / - only for DIC

RogelioMoreno · Post by **RogelioMoreno** » Wed Apr 04, 2012 4:58 am

That green stentor is a beauty!

Rogelio

Marek Mis · Post by **Marek Mis** » Wed Apr 04, 2012 5:04 am

Jacek,

Thank you for your immediate information.

Marek

Bruce Taylor · Post by **Bruce Taylor** » Wed Apr 04, 2012 5:19 am

Fascinating and beautiful.

Two Stentors are described as being red in transmitted light: Stentor rubra Bary (which Foissner does not think has been properly differentiated from S. igneus); and Stentor tartari, which may be synonymous with S. andreseni. The first has one macronucleus; the second has two (rarely three).

Others look red in reflected light, or turn red on contact with certain chemicals. And S. amethystinus(single macronucleus, like S. rubra) is described as purplish-red, in some cases.

If the macronucleus were resolved more clearly perhaps the species could be determined.

See Foissner's very useful revision of the genus (1994):

http://plankt.oxfordjournals.org/content/16/3/255.short

and a description of S. tartari:

http://onlinelibrary.wiley.com/doi/10.1 ... 3687.x/pdf

Tartar's book _Biology of Stentor_ can be freely downloaded from the internet archive: http://archive.org/details/biologyofstentor00tart