Chlorophyll f-driven photosynthesis in a cavernous cyanobacterium. chlf

Chlorophyll (Chl) f is the most recently discovered chlorophyll and has only been found in cyanobacteria from aquatic environments. While its structure and biophysical properties are resolved, the importance of Chl f as an accessory pigment in photosynthesis remains unresolved. We found Chl f in a cyanobacterium enriched from a cavernous environment and report the first example of Chl f-supported oxygenic photosynthesis in cyanobacteria from a cavernous habitat.