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Colourful Paramecium

 
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Gerd



Joined: 05 Aug 2006
Posts: 152
Location: Duesseldorf, Germany

PostPosted: Tue Feb 03, 2009 12:44 pm    Post subject: Colourful Paramecium Reply with quote




This is a picture of my microscopic pets, paramecium caudatum, fed with dyed yeast cells.
I used Congo red for dying the yeast, because Congo red is an indicator for pH too :http://en.wikipedia.org/wiki/Congo_red
red with pH above 5.2, blue below pH 3. First the ingested yeast cells are colourful red in the feeding vacuoles,
later they turn to blue, a wonderful and easy to do experiment.
Thanks for looking,
Gerd
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gpmatthews



Joined: 03 Aug 2006
Posts: 1015
Location: Horsham, W. Sussex, UK

PostPosted: Sun Feb 08, 2009 11:43 pm    Post subject: Reply with quote

Beautiful picture - I must try feeding some like this...
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Graham

Though we lean upon the same balustrade, the colours of the mountain are different.
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Cyclops



Joined: 05 Aug 2006
Posts: 2968
Location: North East of England

PostPosted: Mon Feb 09, 2009 2:16 pm    Post subject: Reply with quote

VERY very nice!
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Canon 30D | Canon IXUS 265HS | Cosina 100mm f3.5 macro | EF 75-300 f4.5-5.6 USM III | EF 50 f1.8 II | Slik 88 tripod | Apex Practicioner monocular microscope
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