Leave your teak Ameba?.....video
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Leave your teak Ameba?.....video
Hello
In this video I see what it looks to be an amoeba that leaving your teak broken - with complete safety -
Could it be?
http://www.youtube.com/watch?v=a0XP9L6KqKc
In this video I see what it looks to be an amoeba that leaving your teak broken - with complete safety -
Could it be?
http://www.youtube.com/watch?v=a0XP9L6KqKc
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You squeezed the amoeba out of his theca. They never leave their home, but here it is clear that the crushed theca is the only reason. I have observed this many times, also with large Difflugia's. You can also obeserve that your amoeba isn't moving much and, as Abel states, is dying. The abandonment of a theca is poorly documented, because it never happens.
Ferry
Ferry
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Hello Ferry
Thank you for your information
I think it is my opinion that, in the world of freshwater microorganisms say "never happens" is a bit risky
In my opinion, based on my experience, every day new phenomena are observed. It's the magic of ciliates, diatoms, rotifers ... etc
The abandonment of teak by the amoeba, but strange and not documented, I believe, possible
In this video - poor quality, I observed the same femonemo
Coincidence?. I really do not know
Francisco
http://www.youtube.com/watch?v=bky5q5XPrsQ
Thank you for your information
I think it is my opinion that, in the world of freshwater microorganisms say "never happens" is a bit risky
In my opinion, based on my experience, every day new phenomena are observed. It's the magic of ciliates, diatoms, rotifers ... etc
The abandonment of teak by the amoeba, but strange and not documented, I believe, possible
In this video - poor quality, I observed the same femonemo
Coincidence?. I really do not know
Francisco
http://www.youtube.com/watch?v=bky5q5XPrsQ
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- rjlittlefield
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Readers of this thread: please note that I have moved Ferry's description of how thecamoeba multiply to a new topic of its own.
The forum organization will be cleaner this way, with both topics easier to find later.
The new topic is here: How thecamoeba multiply (Arcella) .
--Rik
The forum organization will be cleaner this way, with both topics easier to find later.
The new topic is here: How thecamoeba multiply (Arcella) .
--Rik
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An interesting article, in part, speaks of the possibility of difflugia to live outside of the theca
http://www.biolbull.org/content/61/2/223.full.pdf
Francisco
http://www.biolbull.org/content/61/2/223.full.pdf
Francisco
Francisco,
the information in these historic papers has to be taken with a grain of salt. I just got a book by Professor Dr. August Gruber (120 years old) who reports on Actinophyrs sol. He observed small species of A. sol without a nucleus and includes drawings of stained species that show no nucleus
The thin layer of water under the cover slip is an alien habitat. The behavior of many protists under the cover slip is different from nature. When thecamoeba leave their shell they are dying. The pressure of the cover slip triggers this quite often.
regards
Ecki
the information in these historic papers has to be taken with a grain of salt. I just got a book by Professor Dr. August Gruber (120 years old) who reports on Actinophyrs sol. He observed small species of A. sol without a nucleus and includes drawings of stained species that show no nucleus

The thin layer of water under the cover slip is an alien habitat. The behavior of many protists under the cover slip is different from nature. When thecamoeba leave their shell they are dying. The pressure of the cover slip triggers this quite often.
regards
Ecki
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thanks Ecki
I agree, I just seemed an interesting article and thought it would be interesting to share
In the book "Zoologia especial PROTOZOOS" Albert Westphal. (do not know the English name) refers to experiments with Chaos and Stentor. In these experiments, "short" in two, a piece containing the nucleus, the other not. The two are regenerated funcionon maintaining mobility of the pulsating vacuole and, in some species, the ability to feed but not nucleated piece makes no digestion.
Francisco
I agree, I just seemed an interesting article and thought it would be interesting to share
In the book "Zoologia especial PROTOZOOS" Albert Westphal. (do not know the English name) refers to experiments with Chaos and Stentor. In these experiments, "short" in two, a piece containing the nucleus, the other not. The two are regenerated funcionon maintaining mobility of the pulsating vacuole and, in some species, the ability to feed but not nucleated piece makes no digestion.
Francisco