Dear Colleagues
We just published an article showing many different metabolic/physiological strategies of a marine symbiosis for dealing with energy and nutrient limitation.
http://www.pnas.org/content/early/2012/04/03/1121198109.full.pdf+html
Kleiner, M. et al. Metaproteomics of a gutless marine worm and its symbiotic microbial community reveal unusual pathways for carbon and energy use PNAS 2012 ; published ahead of print April 18, 2012, doi:10.1073/pnas.1121198109