At GISS, through membership in the Virtual Planetary Laboratory team of the NASA Astrobiology Institute, research by Nancy Kiang is probing the long wavelength limit of
oxygenic photosynthesis.
The cyanobacterium Acaryochloris marina is being studied as a model organism for alternative pigment signatures of
oxygenic photosynthesis adapted, for example, to the light of red dwarf stars.
Think of all the work on the Neoproterozoic Snowball Earth, the evolution of
oxygenic photosynthesis on the Early Earth and its role in the transition from a methane - dominated to a CO2 - dominated greenhouse, Martian paleoclimate, the climate of Venus and Titan, the nature of the glacial - interglacial cycles, and so many more.
The evolution of
oxygenic photosynthesis and...
Simple biogeochemical flux modeling suggests that, if the Archean Earth was kept warm by a methane greenhouse, then the evolution of
oxygenic photosynthesis could have triggered a Snowball Earth event on a time scale as short as about a million years (Kopp et al., 2005).
Thereby Calredoxin functions at the crossroad of calcium - and redox - dependent reactions to promote efficient
oxygenic photosynthesis.
The researchers are exploring how this protein functions at the crossroad of calcium - and redox - dependent reactions to promote efficient
oxygenic photosynthesis.
«The only reason we have a well - oxygenated planet we can live on is because of
oxygenic photosynthesis,» Planavsky said.
But scientists are confident that
oxygenic photosynthesis evolved only this one time in Earth's history, only in cyanobacteria, and all plants and other beings on Earth that photosynthesize coopted the development.
Not exact matches
The symposium lectures given by renowned specialists in the field will focus on recent progress in the knowledge of structure, biogenesis and function of important pigment — protein complexes participating in
oxygenic and anoxygenic
photosynthesis.