Red Pigments

Phil jorge2 at earthlink.net
Sat Jun 20 15:31:31 EST 1998


Glen Tamura wrote:
> 
> All:
> 
> Did some more research. Rhodobacter sphaeroides is a free-living gram
> NEGATIVE organism which lives in fresh water. It is photosynthetic. It is
> a purple color.
> 
> Rhodococcus equi is what I was actually thinking of. It causes infections
> in immunocompromised patients, and is a gram positive rod, so it fits the
> profile of what was described. Why its called Rhodococcus when it is a rod
> I have no idea. I think it makes a red pigment, but I couldn't actually
> verify that.
> 
> Glen Tamura
> 
> On Fri, 19 Jun 1998, William J. Mason wrote:
> 
> > Glen,
> >
> > Tell me more...I have never heard of this.  Does it produce a red pigment?
> >
> > Jeff Mason
> > University of Arkansas, Biological Sciences/Microbiology
> > wmason at comp.uark.edu
> > http://comp.uark.edu/~wmason
> >
> > On Fri, 19 Jun 1998, Glen Tamura wrote:
> >
> > > How about Rhodobacter sphaeroides? I know it is red, and some other
> > > species produce a capsule which might make it quite mucoid (Rhodobacter
> > > capsulatus). I don't know whether its gram negative or positive, though.
> > >
> > > Glen Tamura
> > >
> > >
> > >
> >
> >
Glen may be on target here.  Serratia is clearly Gram negative.



More information about the Microbio mailing list