Whazzis?

Doug Caldwell caldwell at SKYWAY.USASK.CA
Sat Jun 21 13:13:41 EST 1997


As defined by Kevin Marshal (and generally agreed to at a Dahlem conference
in West Berlin more than a decade ago) - a biofilm is a layer of
microorganisms at a surface.


>What are biofilms?  I am a molecular bilogist/virologist, and was
>interested in the title of this newsgroup, so subscribed.  Is it, like, a
>cell monolayer?  or specialized photography medium?  Maybe it is films of
>athletes' biostatistics?
>Whazzis?




Doug Caldwell
Microbial Colonization Laboratory
Department of Applied Microbiology and Food Science
51 Campus Drive, University of Saskatchewan
Saskatoon, Saskatchewan, S7N 5A8, Canada
Voice: (306) 966-5026 (office), -5042 (colonization lab), -7704 (laser
imaging facility), 934-0711 (home)
Fax:  306-966-8898
Email:  caldwell at sask.usask.ca
WebSite:  http://zebra.usask.ca


Two bacteria in a chemostat - do they compete for the substrate or share
the substrate ? ? ?


Selection theorists argue that it is teleological to imagine that they
share, but insist that it is OK to imagine that they compete.  Based on
Ockham's Razor (the law of economy), it is equally unnecessary to imagine
either that they share or compete. However, it is sometimes possible for
them to proliferate more effectively by associating (or by recombining
information with one another).  





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