Bradley Koch

INTRODUCTION Cyanobacteria perform oxygenic photosynthesis and contribute substantially to the global carbon cycle (Field et al., 1998). Oxygenic photosynthesis is essential for sustaining life, as it maintains atmospheric oxygen levels and serves as the primary source of energy and organic materials for most living organisms. In photosynthetic organisms, the thylakoid membranes host the light-dependent electron transfer reactions of photosynthesis.