Hello,
during my last holidays in the Lechtal Alps I origionally wanted to investigate some Desmids, but I couldn't find some interesting ones. Instead I found a nice Euglena spirogyra:
The first picture shows E. spirogyra focussed on the middle-part. Typical are the lengthwise spiral circulating rows of protuberances on the pellicle. Furthermore there are two large rings of paramylon visible, one anterior and one posterior to the nucleus.
Objektive 100x/1.25 oil, oblique illumination (for a better presentation of the protuberances)
The second picture is focussed on the pellicle in order to emphasize the circulating rows of protuberances.
The nucleus is between the two paramylon-grains. It is hardly visible in the two pictures above, but much more better in the following video. The video demonstrates also, that E. spirogyra shows only slight metaboly and is of slow motion. Also the short flagellum sometimes is visible.
Link to the video: http://www.dr-ralf-wagner.de/Bilder/Eug ... 2-divx.avi
objektive 40x/0.65, oblique illumination, DIVX-AVI-format, ~ 3 MB
enjoy!
Euglena spirogyra
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- ralfwagner
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- Location: Germany, Duesseldorf
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Euglena spirogyra
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Ralf
http://www.lichenes.de
http://www.dr-ralf-wagner.de
http://www.youtube.com/user/drralfwagner
Ralf
http://www.lichenes.de
http://www.dr-ralf-wagner.de
http://www.youtube.com/user/drralfwagner
- ralfwagner
- Posts: 441
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- Location: Germany, Duesseldorf
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Ken,
I really do not know what the function of the protuberances is. But I assume, that they have no special function and are just a game of nature.
I really do not know what the function of the protuberances is. But I assume, that they have no special function and are just a game of nature.
----------------------
Ralf
http://www.lichenes.de
http://www.dr-ralf-wagner.de
http://www.youtube.com/user/drralfwagner
Ralf
http://www.lichenes.de
http://www.dr-ralf-wagner.de
http://www.youtube.com/user/drralfwagner
Great Photos Ralf. Your two pictures show why it is called Euglena spirogyra. While I was looking for more info on this organism, I came across this site that has a SEM of the protuberances http://www.plantbiology.msu.edu/triemer ... ection.htm Very interesting creature
Take Nothing but Pictures--Leave Nothing but Footprints.
Doug Breda
Doug Breda