Caption: Figure 1: The connection between the molecular, energetic, and spectral characteristics of the chlorophyll and bacteriochlorophyll
Probing the binding site of 800-nm bacteriochlorophyll
in the memebrane-linked LH2 protein of Rhodobacter capsulatus by local unfolding and chemical modification.
The bacteria have developed photosynthetic pigment (bacteriochlorophyll
) to adapt to neartotal darkness.
(55,56) These compounds are diagenetic derivatives of photosynthetic pigments, isorenieratene and bacteriochlorophylls
e, respectively, from obligately anaerobic green sulfur bacteria.
Chlorophylls and Bacteriochlorophylls
: biochemistry, biophysics, functions and applications.
This hypothesis has been recently boosted by experimental results which reveal long-lived quantum coherent excitonic dynamics in the energy transfer among bacteriochlorophylls
in photosynthetic complexes (Engel et al., 2007; Lee et al., 2007).