It stole photosynthesis-related genes from an ancient proteobacterium. engineering
, the bacterium has evolved its ability of photosynthesis via the horizontal transfer of photosynthesis-related genes from a more ancient phototrophic proteobacterium. The complex of molecules allowing the bacterium's photosynthesis has two layers of rings around the reaction center. The outer ring functions to snatch the sunlight and transfer it from its 800 and 816 nm absorption bands to the 868 nm absorption of the inner ring.
Gemmatimonas phototrophica's photosynthetic complex. Source: Dr. Tristan I. Croll, University of Cambridge, UK The photosynthesizing complex resembles a funnel. First, the energy is absorbed by the pigments around the structure and transferred from the energy gradient to the center of the complex where it is converted into metabolic energy. The whole process takes only several picoseconds."This structural and functional study has exciting implications because it shows that G.
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