Before the Earth's complete oxygenation (0.58 to 0.55 billion years [Ga] ago), the photic
zone of the Proterozoic oceans was probably redox stratified, with a slightly aerobic, nutrient …

We report the isolation of a pinnacle-forming cyanobacterium isolated from a microbial mat
covering the sediment surface at Little Salt Spring—a flooded sinkhole in Florida with a …

We used microsensors to study the regulation of anoxygenic and oxygenic photosynthesis
(AP and OP, respectively) by light and sulfide in a cyanobacterium dominating microbial …

An isolate from H2S-rich layers of the Solar Lake, the cyanobacterium Oscillatoria limnetica,
exhibits both oxygenic and anoxygenic photosynthesis. It can use Na2S as an electron …

Sulfide inhibits oxygenic photosynthesis by blocking electron transfer between H2O and the
oxygen-evolving complex in the D1 protein of Photosystem II. The ability of cyanobacteria to …

Four different types of adaptation to sulfide among cyanobacteria are described based on
the differential toxicity to sulfide of photosystems I and II and the capacity for the induction of …

Cyanobacteria are a diverse group of photoautotrophic prokaryotes. Many species possess
a versatile metabolism but their dominant physiology is a plant-type oxygenic …

We used microsensors to investigate the combinatory effect of hydrogen sulfide (H 2 S) and
light on oxygenic photosynthesis in biofilms formed by a cyanobacterium from sulfidic …

This chapter describes photosynthetic antenna systems of cyanobacteria, with special
emphasis on two points:(i) diversity of pigments and associated changes in proteins of …

The ability to harvest light to drive chemical reactions and gain energy provided microbes
access to high energy electron donors which fueled primary productivity, biogeochemical …