:Oxygen began to outgas from the oceans 3 2.7 billion years ago, leading to the Great Oxygenation Event ( an extinction event for anaerobic organisms ) around 2.3 billion years ago.
22.
Together with Carbon monoxide dehydrogenase ( CODH ), it forms the bifunctional enzyme Acetyl-CoA Synthase / Carbon Monoxide Dehydrogenase ( ACS / CODH ) found in anaerobic organisms such as archaea and eubacteria.
23.
I took the box up to my roof and dumped the tarlike noxious contents onto an old tarp ( the lack of air had encouraged the growth of anaerobic organisms, which stink ).
24.
However some anaerobic organisms, such as methanogens are able to continue with anaerobic respiration, yielding more ATP by using other inorganic molecules ( not oxygen ) as final electron acceptors in the electron transport chain.
25.
Members of this small phylum are anaerobic organisms, living in the digestive system of larger herbivorous mammals and in other terrestrial and aquatic environments enriched in cellulose ( e . g ., domestic waste landfill sites ).
26.
The management of anaerobic infection is often difficult because of the slow growth of anaerobic organisms, which can delay their identification by the frequent polymicrobial nature of these infections and by the increasing resistance of anaerobic bacteria to antimicrobials.
27.
Cyanobacteria use water as a reducing agent, producing atmospheric oxygen as a byproduct, and they thereby profoundly changed the early anaerobic organisms, and resulting in a highly oxidizing atmosphere, and opening up niches on land for occupation by aerobic organisms.
28.
The presence of large amounts of dissolved and free oxygen in the oceans and atmosphere may have driven most of the extant anaerobic organisms to extinction during the Great Oxygenation Event ( " oxygen catastrophe " ) about 2.4 billion years ago.
29.
The initial bacterial population are generally facultative anaerobic organisms; investigators believe that these initial colonizers decrease the oxygen concentration in the gut, which in turn allows purely anaerobic bacteria like " Bacteroides ", " Actinobacteria ", and " Firmicutes " to become established and thrive.
30.
It is a facultative anaerobic organism and considered an extremophile due to its optimal growing conditions at 8R C and 30 MPa . Researchers are evaluating this species to better understand the specific mechanisms " S . violacea " uses in order to thrive in its unusually cold and high-pressure environment.
