Bacteria Colony

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hkv
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Bacteria Colony

#1 Post by hkv » Mon May 15, 2017 1:49 pm

Bacteria Colony at 60X water immersion and DIC.

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billbillt
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Re: Bacteria Colony

#2 Post by billbillt » Mon May 15, 2017 3:47 pm

Hi,

That turned out very well.. Any idea on ID?...

BillT

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Re: Bacteria Colony

#3 Post by hkv » Mon May 15, 2017 3:56 pm

billbillt wrote:Hi,

That turned out very well.. Any idea on ID?...

BillT
I do not know. Some form of Bacillus since it is rod shaped. Found in a freshwater sample. A drop from the surface water
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Re: Bacteria Colony

#4 Post by JimT » Mon May 15, 2017 10:26 pm

Yes, quite nice. Interesting how they cluster together.

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Re: Bacteria Colony

#5 Post by zzffnn » Tue May 16, 2017 12:16 am

It is not possible to ID bacteria by looking at an image. You can get a basic idea about how to do it, by searching "bacteria identification chart" in Google Image.

Basically, cultures, stress factors (such as antibiotics) and biochemical assays are involved.

If bacteria cannot be cultured, you may not be able to ID it easily, unless you can obtain enough genetic information from it for sequencing.

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billben74
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Re: Bacteria Colony

#6 Post by billben74 » Tue May 16, 2017 9:26 am

Very nice image on what has to be one of the hardest subjects.

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Re: Bacteria Colony

#7 Post by apochronaut » Tue May 16, 2017 1:32 pm

JimT wrote:Yes, quite nice. Interesting how they cluster together.
Bacteria cluster together for one of several possible reasons, depending on whether they are motile or non-motile.

With non-motile bacteria a cluster of individuals can be a result of it being a center of culture, with each individual in the group having descended from one or several original individuals. The rock concerts, art openings or book signings of Homo Sapiens are not dissimilar events , except that the development of progeny, following such events just takes a little longer. A clumping of cells can also be caused by a process known as aglutination, which occurs as a result of various environmental stresses. Homo Sapiens also has similar events, where they cluster together, such as bomb shelters and protests. The third reason could be due to a process known as reversion. Most bacteria, maintain a classic morphology as well as one to numerous, non-classic morphologies. Environmental stresses, again , can result in the individuals changing their morphology to a cell wall deficient form or L-form, a spheroplast, or numerous other defensive forms. Some of these are very innocuous forms and can be mistaken for amorphous structures or random particles. Bacterial colonies can revert to the classic morphology quite rapidly and seemingly just appear out of no where. They were there all along but not noticed. While Homo Sapiens does not have a direct comparative life style as this, we wish that we did. It would have to be known by the name shape changer and I'm sure the concept is being worked on somewhere.

Additionally, motile species can migrate from an area of unfavourable environment to an area of favourable environment, and cluster . A good example can be seen with anaerobic gliding bacteria. They have the facility to evacuate an environment that is becoming aerobic and migrate to an area that has less oxygen. It would seem that their development of motility was as a result of this environmental need. In Homo Sapiens, the well known phenomena of refugees, is a good similar example.

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Re: Bacteria Colony

#8 Post by hkv » Tue May 16, 2017 3:21 pm

apochronaut wrote:
JimT wrote:Yes, quite nice. Interesting how they cluster together.
Bacteria cluster together for one of several possible reasons, depending on whether they are motile or non-motile.

With non-motile bacteria a cluster of individuals can be a result of it being a center of culture, with each individual in the group having descended from one or several original individuals. The rock concerts, art openings or book signings of Homo Sapiens are not dissimilar events , except that the development of progeny, following such events just takes a little longer. A clumping of cells can also be caused by a process known as aglutination, which occurs as a result of various environmental stresses. Homo Sapiens also has similar events, where they cluster together, such as bomb shelters and protests. The third reason could be due to a process known as reversion. Most bacteria, maintain a classic morphology as well as one to numerous, non-classic morphologies. Environmental stresses, again , can result in the individuals changing their morphology to a cell wall deficient form or L-form, a spheroplast, or numerous other defensive forms. Some of these are very innocuous forms and can be mistaken for amorphous structures or random particles. Bacterial colonies can revert to the classic morphology quite rapidly and seemingly just appear out of no where. They were there all along but not noticed. While Homo Sapiens does not have a direct comparative life style as this, we wish that we did. It would have to be known by the name shape changer and I'm sure the concept is being worked on somewhere.

Additionally, motile species can migrate from an area of unfavourable environment to an area of favourable environment, and cluster . A good example can be seen with anaerobic gliding bacteria. They have the facility to evacuate an environment that is becoming aerobic and migrate to an area that has less oxygen. It would seem that their development of motility was as a result of this environmental need. In Homo Sapiens, the well known phenomena of refugees, is a good similar example.



Great explaination. Humans and germs are not that different after all
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billbillt
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Re: Bacteria Colony

#9 Post by billbillt » Tue May 16, 2017 6:09 pm

Must be the herd mentality..

BillT

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Re: Bacteria Colony

#10 Post by apochronaut » Wed May 17, 2017 12:30 am

lemmings, actually. unfortunately, humans probably outnumber cliffs, by now.

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Re: Bacteria Colony

#11 Post by kit1980 » Wed May 17, 2017 8:04 am

Nice image with great contrast for such a hard specimen.
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Re: Bacteria Colony

#12 Post by vasselle » Wed May 24, 2017 1:24 pm

Bonjour
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