photosynthetic organisms
Ocean toxicity hampered the rapid evolution of complex life
“In the article we argue that when we first see the appearance of complex life on Earth, is when life have developed mechanisms to resist catastrophic chemical…
Ancient rocks record first evidence for photosynthesis that made oxygen
“Rock from 3.4 billion years ago showed that the ocean contained basically no free oxygen,” says Clark Johnson, professor of geoscience at UW-Madison and a…
Engineering alternative fuel with cyanobacteria
Micro-algal fuels might be one way to reduce the nation’s dependence on foreign energy. Such fuels would be renewable since they are powered by sunlight. They…
Researchers identify molecular 'culprit' in rise of planetary oxygen
The new findings, reported in the journal Structure, build on more than a dozen previous studies that aim to track the molecular evolution of life by looking…
Scientists probe the energy transfer process in photosynthetic proteins
Plants and other photosynthetic organisms grow by harvesting the sun's energy and storing it in chemical bonds. Antenna proteins, which are made up of multiple…