Rogier <rogierNOroSPAM at bio.vu.nl.invalid> wrote in message
news:0df0788c.0d9b354f at usw-ex0106-046.remarq.com...
> it can swim through a 2.7 um filter, so it's probably not a
> fungus. yeast is a small fungus, and a yeast cell is usually
> about 5 um.
> as far as I know there are no viruses that require strict
> anaerobic conditions to stay alive (as far as a virus is
> alive...) so I'd put my money on one of the zillions of
> (facultative anaerobic) bacteria out there.
> Rogier
> rogier AT bio.vu.nl
>
I'd suggest thinking about what is happening to the filtrate - (1) what's in
it and (2) what happens to it when something else grows in it. You can
isolate obligate anaerobes (bacteroides species for example) which are very
sensitive to oxygen from apparently aeobic sites such as the human mouth -
because their microenvironment is rendered anaeobic by other organisms using
up the available oxygen.
GS
