Articles with the keyword: 
Darkfrog submitted, created time 2 months 2 weeks (www.nature.com)
About 2.4 billion years ago, Earth's oxygen levels rose sharply, in what has turned out to be a prerequisite for almost every form of life (I am assuming that aquatic oxygen levels rose as well). This is one of the reasons why scientists studying early life and the origins of life have always considered the 2.4 billion mark to coincide with the emergence of photosynthetic organisms.
However, geologists in Australia have unearthed some shale that shows markings from hydrocarbons that "could only have been put there by photosynthetic organisms." Their date stamp? 2.7 billion years. .. 
Hardy Earth bacteria can grow in lunar soil
sumsung submitted, created time 9 months 3 weeks (space.newscientist.com)
A hardy life form called cyanobacteria can grow in otherwise inhospitable lunar soil, new experiments suggest. Future colonists on the Moon might be able to use the cyanobacteria to extract resources from the soil that could be used to make rocket fuel and fertilizer for crops.
Oligocene CO2 Decline Promoted C4 Photosynthesis in Grasses
davidd submitted, created time 11 months 3 weeks (www.current-biology.com)
C4 photosynthesis is an adaptation derived from the more common C3 photosynthetic pathway that confers a higher productivity under warm temperature and low atmospheric CO2 concentration. In this study, they inferred a large phylogenetic tree for the grass family and estimated, and make the C3/C4 divergence times more precise.
Researchers Prove How Plants Transport Sugars
Eric wu submitted, created time 1 year 6 days (www.sciencedaily.com)
How do many plants ship sugars from their leaves to flowers, roots, fruits and other parts of their structure? Using genetic engineering techniques, Cornell researchers have finally proven a long-standing theory of how this occurs.
Scientists Successfully Simulate Photosynthesis And Design A Better Leaf
tanker submitted, created time 1 year 1 month (www.sciencedaily.com)
The researchers accomplished the feat using a computer model that mimics the process of evolution. via Science Daily
sumsung submitted, created time 1 year 5 months (www.pnas.org)
In natural photosynthesis, the two photosystems that operate in series to drive electron transport from water to carbon dioxide are quite similar in structure and function, but operate at widely different potentials.
Piecing together the cyanobacteria puzzle
bianjie submitted, created time 1 year 5 months (www.biologynews.net)
Blue green algae are significant species in the global carbon cycle because they transform nitrogen gas from the atmosphere into a useable nutrient, enabling photosynthesis in nutrient-poor waters.
Coherence Dynamics in Photosynthesis: Protein Protection of Excitonic Coherence
addict submitted, created time 1 year 7 months (www.sciencemag.org)
"The role of quantum coherence in promoting the efficiency of the initial stages of photosynthesis is an open and intriguing question. We performed a two-color photon echo experiment on a bacterial reaction center that enabled direct visualization of the coherence dynamics in the reaction center. The data revealed long-lasting coherence between two electronic states that are formed by mixing of the bacteriopheophytin and accessory bacteriochlorophyll excited states. "
β-Oxidation in fatty acid degradation and beyond
badboy submitted, created time 1 year 7 months (www.sciencedirect.com)
"The degradation of fatty acids in plants occurs primarily in the peroxisomes through the β-oxidation cycle. Enzymes that are involved in various aspects of β-oxidation have been identified recently and shown to act biochemically on a diversity of fatty acids and derivatives. Analysis of several mutants has revealed essential roles for β-oxidation in the breakdown of reserve triacylglycerols, seed development, seed germination and post-germinative growth before the establishment of photosynthesis
Protein Dynamics Control the Kinetics of Initial Electron Transfer in Photosynthesis
newsdigg submitted, created time 1 year 8 months (www.sciencemag.org)
The initial electron transfer dynamics during photosynthesis have been studied in Rhodobacter sphaeroides reaction centers from wild type and 14 mutants in which the driving force and the kinetics of charge separation vary over a broad range. Surprisingly, the protein relaxation kinetics, as measured by tryptophan absorbance changes, are invariant in these mutants. By applying a reaction-diffusion model, we can fit the complex electron transfer kinetics of each mutant quantitatively, varying only the driving force
Plankton Species' Genome Analysis Yields Surprises Regarding Evolution And Global Photosynthesis
psychologist submitted, created time 1 year 8 months (www.sciencedaily.com)
An international team of scientists led by Scripps Institution of Oceanography at UC San Diego and the Department of Energy's (DOE) Joint Genome Institute has peered into the genetic makeup of two species of phytoplankton, the tiny plants key in global photosynthesis and carbon cycling, and come away with surprising results about evolutionary engineering and new ideas about the role that a poorly understood chemical element may play in the world's oceans.
Cindy submitted, created time 1 year 8 months (www.nature.com)
We introduced the Escherichia coli glycolate catabolic pathway into Arabidopsis thaliana chloroplasts to reduce the loss of fixed carbon and nitrogen that occurs in C3 plants when phosphoglycolate, an inevitable by-product of photosynthesis, is recycled by photorespiration.
Identification of the special pair of photosystem II in a chlorophyll d-dominated cyanobacterium
daphne submitted, created time 1 year 8 months (www.pnas.org)
The composition of photosystem II (PSII) in the chlorophyll (Chl) d-dominated cyanobacterium Acaryochloris marina MBIC 11017 was investigated to enhance the general understanding of the energetics of the PSII reaction center. Through the research, yhe combined results indicate that the special pair comprises a Chl d homodimer. The primary electron acceptor was shown by photoaccumulation to be Phe a, and its potential was shifted to a higher value than that in the Chl a/Phe a system
When It Comes to Photosynthesis, Plants Perform Quantum Computation
Dolly submitted, created time 1 year 8 months (sciam.com)
Plants soak up some of the 1017 joules of solar energy that bathe Earth each second, harvesting as much as 95 percent of it from the light they absorb. The transformation of sunlight into carbohydrates takes place in a million billionths of a second, preventing much of that energy from dissipating as heat. But exactly how plants manage this nearly instantaneous trick has remained elusive
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