Latest Archaea Stories
A new study of the ribosome, the cell's protein-building machinery, sheds light on the oldest branches of the evolutionary tree of life and suggests that differences in ribosomal structure between the three main branches of that tree are "molecular fossils" of the early evolution of protein synthesis.
Biogeoscientists show evidence of 90 billion tons of microbial organismsâ€”expressed in terms of carbon massâ€”living in the deep biosphere, in a research article published online by Nature, July 20, 2008.
Scientists at the Helmholtz Centre for Infection Research (HZI) in Braunschweig (Germany) have joined up with colleagues from Spain and Great Britain to identify an enzyme that requires acids and dissolved metals in order to function.
Scientists have been given a hint that life might evolve underground on other planets as microbes were discovered living at a record depth of one mile beneath the Atlantic seabed.
Scientists of the Helmholtz Centre for Environmental Research (UFZ) in Leipzig and the California Institute of Technology (Caltech) in Pasadena succeeded in capturing syntrophic (means "feeding together") microorganisms that are known to dramatically reduce the oceanic emission of methane into the atmosphere.
Enzymes called helicases play a key role in human health, according to Maria Spies, a University of Illinois biochemistry professor.
Using the genetic equivalent of an ancient thermometer, a team of scientists has determined that the Earth endured a massive cooling period between 500 million and 3.5 billion years ago.
Scientists have suspected that the three known domains of life -- eukaryotes, bacteria, and archaea -- branched off and went their separate ways around three billion years ago. But pinning down the time of that split has been an elusive task.
Scientists have identified tiny nanoorganisms, which are virtually impossible to see beneath the microscope, in a Californian mine. The discovery may have important implications in the search for life on other planets.
Brett Baker discovered three new microbes living amidst the bacteria she thought she knew well. All three were so small - the size of large viruses - as to be virtually invisible under a microscope, and belonged to a totally new phylum of Archaea, microorganisms that have been around for billions of years.
- Small missiles, especially grape, canister, fragments of iron, and the like, when fired, as upon an enemy at close quarters.
- To fire mitraille at.