Beyond an Ocean of Chlorophyll: The Role of Proteorhodopsin Phototrophy in Plankton Ecology.
Until the early 2000s, light-driven energy capture in the ocean was viewed almost exclusively through the lens of chlorophyll-based photosynthesis. The discovery of proteorhodopsins (PRs) in marine bacterioplankton fundamentally expanded this paradigm, revealing that the surface ocean is also inhabited by photoheterotr...