Red Pigments

Glen Tamura gtamura at U.WASHINGTON.EDU
Fri Jun 19 18:55:32 EST 1998


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
> > 
> > 
> > 
> 
> 




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