Primary producers use carbon dioxide and bicarbonate as their main carbon sources. To fix carbon, they rely on a variety of autotrophic pathways, with the Calvin-Benson-Bassham cycle (CBB) being well-studied. Just as organisms can tweak the CBB to the environmental context, the study “Evidence for ecological adaptation of reductive citric acid and reverse oxidative citric […] The post #FEMSmicroBlog: Building biomolecules from carbon dioxide and bicarbonate in unusual places appeared first on FEMS .