Search found 690 matches

by Walter Piorkowski
Tue Mar 02, 2021 1:13 pm
Forum: Photography Through the Microscope
Topic: Amoeba - Volume 5 – Gromia fluvialis.
Replies: 0
Views: 34

Amoeba - Volume 5 – Gromia fluvialis.

Finally, a testate amoeba that I can put a name to. This amoeba has a test around 20 micrometers diameter and long pseudopodia in the form of filopodia, up to 90 - 100 micrometers. While stationary, the filopodia extend out in all directions. They are in a state of constant change, extending and ret...
by Walter Piorkowski
Mon Mar 01, 2021 4:44 pm
Forum: Photography Through the Microscope
Topic: Amoeba - Volume 4 - Two tiny testate amoeba.
Replies: 0
Views: 35

Amoeba - Volume 4 - Two tiny testate amoeba.

We get two for one here in a small field of detritus. Both show well in the same plane of focus in the top image. The lower gray amoeba is projecting a pseudopodium larger than its entire body which is roughly 8 by 12 micrometers. The amoeboid is very similar to the subject in my Volume 1 post. Howe...
by Walter Piorkowski
Sat Feb 27, 2021 4:14 pm
Forum: Photography Through the Microscope
Topic: Amoeba - Volume 3 - A tiny amoeba with flagella.
Replies: 0
Views: 80

Amoeba - Volume 3 - A tiny amoeba with flagella.

This tiny amoeba, only 8 by 12 micrometers in size has a pseudopodal projection that started out an oval and expanded to a circle. It was the way that I recognized this little smudge as a living amoeboid. My eye had initially been drawn to this area of my slide by the presence of the Peritrich to it...
by Walter Piorkowski
Fri Feb 26, 2021 7:39 pm
Forum: Photography Through the Microscope
Topic: Amoeba - Volume 2 -Testate amoeba.
Replies: 0
Views: 71

Amoeba - Volume 2 -Testate amoeba.

This amoeba is a very slow mover. It projects a wide pseudopodium in the direction it wants to move. In these images, the movement was to the upper right-hand corner. Its size is roughly 45 -50 micrometers in diameter. I believe that it is a testate amoeba due to the pile of material moving along wi...
by Walter Piorkowski
Thu Feb 25, 2021 4:54 pm
Forum: Photography Through the Microscope
Topic: Amoeba -Volume 1 – A strange testate amoeba.
Replies: 0
Views: 97

Amoeba -Volume 1 – A strange testate amoeba.

I begin this series with the most unusual ameboid subject that I have seen to date. It is circular, stationary, colorless, very flat and it has short filose pseudopodia. It also seems to have projected a large circular pseudopodia, if that is what it can be called. Dozens of live bacteria inhabited ...
by Walter Piorkowski
Thu Feb 11, 2021 8:02 pm
Forum: Photography Through the Microscope
Topic: Cyclidium glaucoma feeding.
Replies: 0
Views: 271

Cyclidium glaucoma feeding.

Cyclidium glaucoma feeding. It is good to be back after a very long absence. I see that submissions have undergone some changes. Hope I did it correctly. I have for your review some images of the protozoan Cyclidium glaucoma (Kahl). These are the first protozoan darkfield images with a, new for me, ...
by Walter Piorkowski
Mon May 21, 2018 12:17 pm
Forum: Photography Through the Microscope
Topic: A Vanadinite crystal in R-DIC
Replies: 2
Views: 2435

Thank you Keith. The article is one I had not seen. It also shows the exact microscope that I used for the images in the post. Walter
by Walter Piorkowski
Sat Apr 21, 2018 12:13 pm
Forum: Photography Through the Microscope
Topic: Beneficial nematodes -- Heterorhabditis bacteriophora
Replies: 9
Views: 3131

Rik. Liked the sharp images and the information provided. Walt
by Walter Piorkowski
Sat Apr 21, 2018 12:11 pm
Forum: Photography Through the Microscope
Topic: A Vanadinite crystal in R-DIC
Replies: 2
Views: 2435

A Vanadinite crystal in R-DIC

Back in February of this year I posted two images of vanadinite crystals. The subject of this post is in the top image of that post. The image showed small crystals that had grown on it’s face surface. I thought this was odd along with the lack of smoothness on the crystal surfaces. I have revisited...
by Walter Piorkowski
Sat Apr 14, 2018 11:20 am
Forum: Photography Through the Microscope
Topic: Black bread mold spores germination
Replies: 10
Views: 2616

Nice work. Enjoyed it. Walt
by Walter Piorkowski
Sat Apr 14, 2018 11:16 am
Forum: Photography Through the Microscope
Topic: Begonia leaf photos
Replies: 9
Views: 2227

Very attractive images Jorgen. I like the stomatal details and the sphere topped trichome. It is also interesting in the lower image that so much internal detail shows up in the cells of the white spot. Will have to review this plant in the future.

Walt
by Walter Piorkowski
Sat Apr 14, 2018 11:05 am
Forum: Photography Through the Microscope
Topic: Stomata - Arborvitae
Replies: 0
Views: 994

Stomata - Arborvitae

http://www.photomacrography.net/forum/userpix/96_arborvitie_stom_UO50x_EPI_USM2ATCLW_1.jpg Image 1 - Stomata from the leaf of Thuja occidentalis or the eastern arborvitae. The epidermal surface of the leaf is shown with eight stomas. The elliptical stomatal pit and the surrounding Florin ring are d...
by Walter Piorkowski
Sat Apr 14, 2018 10:59 am
Forum: Photography Through the Microscope
Topic: Stomata - Pinus strobus
Replies: 0
Views: 1167

Stomata - Pinus strobus

http://www.photomacrography.net/forum/userpix/96_white_pine_stomata_UO50x_EPICLW_1.jpg Image 1 - Four stomata from the needle (leaf) of the eastern white pine tree. The stomata guard cells and other features are not visible in the pine. The openings are not on the epidermal surface but under the wh...
by Walter Piorkowski
Mon Apr 02, 2018 4:09 pm
Forum: Photography Through the Microscope
Topic: Dictyostelium in moist culture chamber (petri dish)
Replies: 5
Views: 1674

Hi Ken. It is good to see that you are still enjoying myxomycetes. I know you have worked with them for well over a decade now. I look forward to more of them myself. Walt
by Walter Piorkowski
Mon Apr 02, 2018 4:01 pm
Forum: Photography Through the Microscope
Topic: Scale Trichomes
Replies: 8
Views: 2362

Thank you Walter. Walt.