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The pseudoheliozoan Hedriocystis

Posted: Sun Mar 19, 2023 6:29 pm
by tlansing
Here are a couple of photos of the strange protist Hedriocystis. This is a small amoeba which inhabits a lorica on a stalk and thin pseudopods extend from openings in the lorica. These pseudopods do not have the usual ordered microtubule arrays seen in axopodia so they do not fit the defining characteristic of axopodia.
Hedriocystis-1.jpg
Hedriocystis-1.jpg (39.32 KiB) Viewed 579 times
Hedriocystis-2.jpg
Hedriocystis-2.jpg (35.14 KiB) Viewed 579 times
Hedriocystis-3.jpg
Hedriocystis-3.jpg (40.75 KiB) Viewed 579 times
An interesting article about these and related amoebae can be found here as a pdf: https://rcin.org.pl/Content/13538/PDF/W ... nr2_AP.pdf

Re: The pseudoheliozoan Hedriocystis

Posted: Sun Mar 19, 2023 7:54 pm
by DonSchaeffer
How do you get those nice 3-D effects in your images?

Re: The pseudoheliozoan Hedriocystis

Posted: Sun Mar 19, 2023 11:11 pm
by tlansing
Hi Don,

These photos using a microscope with DIC optics. DIC produces the 3D-like effect.

Re: The pseudoheliozoan Hedriocystis

Posted: Mon Mar 20, 2023 5:42 am
by WWWW
Very nice images and interesting literature !
I have never seen this specimen, hopefully in the future.