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halophilicbiofilm, quorumsensing

Doug Caldwell microbialecology at shaw.ca
Mon May 12 12:23:42 EST 2003


Dear Henk et al,

Halobacterium spp. and other bacteria beginning with Halo- grow at high salt
concentrations, up to and including the saturated salt brines found in salt
lakes and salt pans along the ocean shore - also in salted fish products.

It would be very interesting if networked communities of organisms were more
salt tolerant when in a community network (or some kind of networked complex
adaptive structure - containing least calculative units that embody a logic
circuit which provides increased capabilities - for example they might be able
to crystalize salt within microenvironments at a lower the nucleation
threshold and thereby increase water activity in the aqueous phase  - this
would come under the heading of geosymbiosis - i.e.  a symbiosis between the
proliferaiton of salt crystals and the proliferation of the bacteria).


Regards - Doug Caldwell



Henk Bolhuis wrote:

 > I found in high slat concentration (>25% NaCl) cells growing in standing in
 > liquid medim in small colonies...apparently connected by smallbridges...it
 > looks like neural network....but than made up of hundreds of small
 > microbes....
 >
 > does anyone know of halophiles that can do this ??
 > i will not be able to do the 16S the comming 2 weeks....
 >
 > thanks in advance
 >
 > Henk Bolhuis
 >
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