photosynthesis without bacteriochlorophyll?

[Michael F. Hynes]

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

MH