[TML] Alien ecologies

[shadow at shadowgard.com]

On 20 Aug 2008 at 20:29, Garry Ward wrote:

> > However the purple pigments in these plants do not play a role in
> > photosynthesis.
> 
> Vaguely remember reading some where that with a non iron (or was it non 
> carbon?) basis then the Photosynthesis agent would have a different color.

We don't know off ant non-carbon life.

The metal in chlorophyll is magnesium. 

BTW, photosynthesis pigments and respiratory pigments are fairly 
closely related. 


--
Leonard Erickson (aka shadow)
shadow at shadowgard dot com