A Paramecium takes a poop

billporter1456 · Post by **billporter1456** » Wed Apr 23, 2014 3:53 am

I'm sure that any of you who have peered at pond water for a while have seen a Paramecium expel waste products. I've seen this plenty of times, but today I decided to see if I could make a short instructional video of that process. Turns out to be pretty hard to do, mainly because of the movement of the critter. My solution was to find an individual who wasn't moving much and just watch until the event occurred. Kind of like potty training where you might wait and wait for the little tyke to cooperate and "let it go." Eventually I caught it on a video and uploaded it for your viewing pleasure. I was using a Zeiss Neofluar 40X phase contrast objective on a Nikon Labophot stand (with Nikon phase contrast condenser). The camera was an Amscope MU300.

https://www.youtube.com/watch?v=Qb0L7SnF9y0

Pau · Post by **Pau** » Fri Apr 25, 2014 10:47 am

Excellent video! I've never seen before exocytosis in action.

billporter1456 · Post by **billporter1456** » Fri Apr 25, 2014 11:43 am

Pau wrote:Excellent video! I've never seen before exocytosis in action.

Thanks, Pau! And I should mention that I have enjoyed looking at the excellent images you have posted on this forum.

piermicro · Post by **piermicro** » Sat Apr 26, 2014 10:06 am

Very well. interesting.

Jean-marc · Post by **Jean-marc** » Sat Apr 26, 2014 3:22 pm

Very well !

JM