Cyanobacteria thrive in every illuminated aquatic environment known, contributing at least
25% of primary productivity worldwide. Given their importance in carbon and nutrient cycles,
cyanobacteria are essential geochemical agents that have shaped the composition of the
Earth's crust, oceans and atmosphere for billions of years. The high diversity of
cyanobacteria is reflected in the panoply of unique physiological adaptations across the
phylum, including different strategies to optimize light harvesting or sustain nitrogen fixation …