Photosystem II is the water-oxidizing and O2-evolving enzyme of photosynthesis. How and
when this remarkable enzyme arose are fundamental questions in the history of life that …

Many multicellular cyanobacteria produce specialized nitrogen-fixing heterocysts. During
diazotrophic growth of the model organism Anabaena (Nostoc) sp. strain PCC 7120, a …

Among the emerging renewable and green energy sources, biohydrogen stands out as an
appealing choice. Hydrogen can be produced by certain groups of microorganisms that …

Microalgae are regarded as a potential biomass source for biofuel purposes. With regard to
bioethanol production, microalgae seem to overcome traditional substrate drawbacks …

The marine nitrogen fixing microorganisms (diazotrophs) are a major source of nitrogen to
open ocean ecosystems and are predicted to be limited by iron in most marine …

In the unicellular cyanobacterium Synechococcus elongatus PCC 7942, essentially all
promoter activities are under the control of the circadian clock under continuous light (LL) …

Microalgae, as facultative aerobic organisms, convert solar energy to produce biohydrogen
under anaerobic condition. Biohydrogen is a kind of ideal clean and renewable energy …

The marine cyanobacterium Prochlorococcus MED4 has the smallest genome and cell size
of all known photosynthetic organisms. Like all phototrophs at temperate latitudes, it …

Photosystem II, the water oxidizing enzyme, altered the course of evolution by filling the
atmosphere with oxygen. Here, we reconstruct the origin and evolution of water oxidation at …

Unicellular cyanobacteria have recently been recognized for their contributions to nitrogen
fixation in marine environments, a function previously thought to be filled mainly by …