Dinoflagellate

Ecki · Post by **Ecki** » Thu Jul 03, 2014 6:28 am

In one of my cultures live many Dinoflagellates. I don't have the literature to identify the species, but I thought I'll show some images anyway.

Build like a tank!

Best regards,
Ecki

carlos.uruguay · Post by **carlos.uruguay** » Thu Jul 03, 2014 7:19 am

Marvelous!!
Thank you for sharing it!
A good text:
http://www.kisr.edu.kw/Data/Site1/image ... 5-04-5.pdf

Ecki · Post by **Ecki** » Thu Jul 03, 2014 10:14 am

This is a freshwater Dinoflagellate but thanks for the link anyway, Carlos. I have very little literature on Dinoflagellates.

Best regards
Ecki

carlos.uruguay · Post by **carlos.uruguay** » Thu Jul 03, 2014 10:35 am

I'm sorry Ecki
Here some pages of freshwater dinoflagellates:
http://tolweb.org/Dinoflagellates/2445
http://onlinelibrary.wiley.com/doi/10.1 ... 5317.x/pdf

Jacek · Post by **Jacek** » Thu Jul 03, 2014 11:56 am

awesome, great

hkv · Post by **hkv** » Thu Jul 03, 2014 1:41 pm

Hi,

WARNING! The algaeweb link above contains a java script virus. It contains a Trojan that most likely do evil.

carlos.uruguay · Post by **carlos.uruguay** » Thu Jul 03, 2014 2:41 pm

Sorry!!!!
I've already deleted this link!
My antivirus not it had detected

Bruce Taylor · Post by **Bruce Taylor** » Thu Jul 03, 2014 3:07 pm

Dazzling!

I wonder if the pores within each Voronoi cell are located on the mathematical generating points of the polygons? Perhaps the algorithm that describes the polygon edges also situates the pores...

piermicro · Post by **piermicro** » Fri Jul 04, 2014 3:18 am

Absolutely interesting.

René · Post by **René** » Fri Jul 04, 2014 4:25 am

Good details. What about the rest of the dino Ecki?
The pores are quite complex, I see that also in some marine dino's like Protoceratium. Bruce, what is a Voronoi cell?

A good starting point for dino's is the Schiller monograph (2 volumes, Rabenhorst's Kryptogamen Flora, in German), downloadable from the biodiversity heritage library.

Best wishes, René

Bruce Taylor · Post by **Bruce Taylor** » Fri Jul 04, 2014 6:28 am

René wrote: Bruce, what is a Voronoi cell?

Voronoi diagrams are patterns of tesselating polygons generated from fairly simple algorithms. These tesselations appear commonly in the natural world (in the spots of a giraffe, for instance). We microscopists see such patterns frequently, in the cells of some plants, the carapaces of arthropods, the "silverline system" of some ciliate cortices, dinoflagellate thecal plates. Soap bubbles, too!

By "Voronoi cell" I just meant the individual polygons in the "diagram," which is generated from "seed" points randomly scattered over a surface. I was just idly wondering whether the pores of this dinoflagellate were located exactly at the seed points of the pattern.

arturoag75 · Post by **arturoag75** » Fri Jul 04, 2014 8:17 am

RogelioMoreno · Post by **RogelioMoreno** » Mon Jul 07, 2014 7:43 am

Amazing, I love all your SEM pictures, the quality and details are incredible.

Rogelio

Charles Krebs · Post by **Charles Krebs** » Mon Jul 07, 2014 3:22 pm

Stunning... fantastic to see this level of detail!

Ecki · Post by **Ecki** » Tue Jul 08, 2014 11:01 am

René,

You've got me there

This is just the epitheka. I have a nice culture in a petri dish with those dinoflagellates and Arcella. Somehow they did not attach to the coverslip that I prepared. I only found this piece. How do you get them to adhere to a coverslip for SEM preparation?

Regards
Ecki

Dinoflagellate

Dinoflagellate

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