bacterial taxis

About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.

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contagion
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bacterial taxis

Post by contagion » Fri Sep 16, 2005 4:28 am

and god said let there be light. so since the beginning, we had the bacteria. cool enough, but how (exactly) do they move? how do they react to stimuli? and what organelles are responsible? thanks

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Winter
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Post by Winter » Fri Sep 16, 2005 5:03 am

ok, bacteria moved in a variety of ways:

- either with the use of flagella (some bacteria had dozens)
- or by sending out streams of mucus or slimes thru their pores to propel them

but some bacteria do not move at all.

hope this answers your question.

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Post by loupass » Wed Sep 21, 2005 9:15 pm

what you are asking is a very complicated question and many years of research have been carried out. In general yes, use of flagella and gliding motility are mechanisms used. How about the use of actin fibers for some of the intracellular pathogens? Is that considered motility? I think if you look at any good micro textbook, you'll find lots of info regarding your question.

while you are at it, look up chemotaxis, elasticotaxis, phototaxis. I think you will be amazed at how intricate bacterial motility really is.

lara
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bacterial chemotaxis

Post by lara » Wed Sep 28, 2005 10:23 am

Well, bacteria r supposed 2 have a decaying memory & they make use of conc. gradient 2 move 2wards an attractant & away from a repellant.
Sure, they move with the help of flagella,but the hexidine kinase system has 2 operate 4 this.

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