Skip to main content
Bioresources and Bioprocessing
Fig. 1 | Bioresources and Bioprocessing

Fig. 1

From: Discovery of a readily heterologously expressed Rubisco from the deep sea with potential for CO2 capture

Fig. 1

Chemosynthetic carbon fixation by the vestimentiferan tube worm Riftia pachyptila. a Deep sea vent environments provide a rich source of carbon dioxide (CO2) and hydrogen sulfide (H2S). Endosymbiotic chemoautotrophic bacteria in the trophosome organ of R. pachyptila use Rubisco to fix CO2 into sugar for the host using the reducing power of inorganic compounds such as H2S. R. pachyptila illustration adapted from (Hinzke et al. 2021). b Simplified phylogenetic tree of the Rubisco large subunit (RbcL) protein sequences. Endosymbiont Rubisco cluster in the Form II (RbcL2-6) clade of Rubisco. Dinoflagellate and Alveolate coral endosymbiont Rubiscos indicated by a filled circle and triangle, respectively. Species Rubiscos analyzed in this study are indicated with a star. Tree was rooted to Rubisco-like proteins (Form IV). Full phylogeny visible in Additional file 2: Figure S1. c R. pachyptila Rubisco operon and ~ 30 kbp local genomic neighborhood. Gene annotation: Red, phosphoribulokinase (prkA); black, Rubisco operon regulator (lysR); blue, Form II Rubisco large subunit (cbbM); yellow, glycolate oxidase gene cluster; green, Rubisco activase complex (cbbQ, cbbO); grey, unrelated/unidentified conserved genes

Back to article page