Amoebas

Wim van Egmond · Post by **Wim van Egmond** » Sun May 22, 2011 6:05 am

After the recent Amoeba movie posting by Charles there was a discussion about the species. It made me doubt about the ID of some of my own images. Hopefully you can give some feedback on these. I always thought this was Amoeba proteus.

I hope I don't post too many images on one day. I could not find the maximum number in the FAQ page.

Wim

rjlittlefield · Post by **rjlittlefield** » Sun May 22, 2011 9:05 am

Wim van Egmond wrote:I hope I don't post too many images on one day. I could not find the maximum number in the FAQ page.

No problem. The limit is currently 6 per gallery per day, HERE.

--Rik

René · Post by **René** » Mon May 23, 2011 2:47 am

Looks like it Wim, nice collection of imaging techniques. What do you make of those typical dots eg in the brightfield image?

René

Ferry · Post by **Ferry** » Tue May 24, 2011 9:13 am

Hallo Wim,

You may be right, it could be Amoeba proteus. It differs from Polychaos dubium in the presence of dorsal ridges. But the nucleus looks a little small compared with proteus. To be sure you should give the dimensions of the nucleus. If it is about 25 um, it could be Amoeba leningradensis. Proteus has a nucleus of ca. 40 um, up to 65 um.

Groetjes,
Ferry

Wim van Egmond · Post by **Wim van Egmond** » Tue May 24, 2011 11:22 am

Dank je Ferry! Than I think it is A. proteus. The amoebas were large, around 500 um, the nucleus is more than 40 um. But I will measure the nucleus more exactly next time.

Wim

Amoebas

Amoebas

Re: Amoebas