Paramecium feeding

Images made through a microscope. All subject types.

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Wim van Egmond
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Paramecium feeding

Post by Wim van Egmond »

This is a pair of images I made in May. I am still a bit delayed with the archiving. :)

The combination flash photography and DIC is nice for cilia movement. You can see the paramecium feeding. What I find interesting are the patterns in which the cilia move. When the Paramecium locomotes all the cilia beat in a coordinated way. But it also feeds when it is motionless and I think that than only the cilia in the Oral groove beat. Would that be correct?

I think Charles also photographed this in the past. It intrigues me how these cilia operate.




Ken Ramos
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Post by Ken Ramos »

Two more outstanding images there Wim. :o You captured the pellicle of the paramecium really well in the first image. One of the first things I look for and I don't know why, are the trichocysts near the surface of the cell. As for the motion of the cilia I have read very little as to just how they are used and it seems that they may come to rest, with the exception of those in the area of the oral groove, when they feed but I would not go as far to say that is so. What really interests me is the 9+2 configuration of the microtubules in the basal body of the cilia, which turn in unison, creating the corkscrew or whip like motion of the cilia. This 9+2 configuration is found in flagella also. Beautiful shots there Wim. :D

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Post by MacroLuv »

Wow! :shock:
The structure is nicely visible. It really looks like a slipper. :D
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Post by beetleman »

Excellent textures in the photos Wim. I bet it would have made a fantastic video to watch the cilia move in that first picture :wink:
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Post by gpmatthews »

Excellent shots - some of the best I've seen of Paramecium. I too have noticed the way the cilia idle when the creature is motionless.

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Bruce Williams
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Post by Bruce Williams »

Really clear and extremely interesting photos Wim. I have never seen the oral groove and buccal cilia so clearly defined and I certainly had no idea how complicated a structure it was.


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