photosynthesis without bacteriochlorophyll?
bickle at ubaclu.unibas.ch
Wed Apr 10 02:19:47 EST 1996
In article <4keir6$15n2 at ds2.acs.ucalgary.ca>, "Michael F. Hynes"
<hynes at acs.ucalgary.ca> wrote:
> hua <hua at uh.edu> wrote:
> >Please help!!! Does anyone know if there is a photosynthetic mode of
> >metabolism in bacteria that occurs in the absence of bacteriochlorophyll
> >or even chlorophyll?
> Yes in some of the halophilic Archaebacteria there is a mechanism
> using bacteriorhodopsin which is essentially a light driven
> proton pump. This system is described in nearly every introductory
> Microbiology text book (eg. Brock and Madigan) and most biochemistry
> text books too
True, but this is not photosynthesis, just light-driven ATP synthesis; it
is not coupled to carbon fixation.
Tom Bickle, Department of Microbiology, Biozentrum, Basel University
Klingelbergstrasse 70, CH-4056 Basel, Switzerland.
+4161 267 2120, Fax: +4161 267 2118 bickle at ubaclu.unibas.ch
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