Prochlorococcus contributes a significant fraction of global photosynthesis

SeaWiFS Project, NASA

36-70%total chlorophyll

25-58%

44-57%

6-47%

Half of global photosynthesis is in the oceans

Sometimes half of that – over vast regions - is done by Prochlorococcus

SMALLEST AND MOST ABUNDANTPHOTOSYNTHETIC CELL ON EARTH

600 nmMBL

C. Ting

C. Ting