Sentences with phrase «by archaea»

At that time common biologic knowledge is: Biogene methanogenesis is performed by archaea, (perhaps some cyanobacteria, fungi and microalgae) which can be divided into two groups: — H2 / CO2 - and — acetate - consumers, (both groups have proteins, carbohydrates or lipds an their derivatives as source).

Potent greenhouse gases, such as nitrogen oxides produced by denitrifying bacteria in overfertilized Chinese farming lands or methane released by archaea in the millions of ruminant animals in Australia and New Zealand, may have contributed substantially to global warming.

Not exact matches

Anaerobic digestion is the simple, natural breakdown of organic matter into carbon dioxide, methane and water, by two groups of microorganisms, bacteria and archaea.

Researchers tested the importance of that rodlike architecture by tampering with the histone - DNA structures of some archaea and then observing how these mutant archaea fared in different conditions.

And it appears that archaea acquired chemotactic abilities by borrowing those genes from bacteria.

The depicted cell consortia are composed of archaea and bacteria that, by combining their individual metabolic powers, together achieve oxidation of the greenhouse gas methane in the absence of oxygen.

«We found that at depths still reached by sunlight, temperature was the main factor that influences the composition of bacteria and archaea communities,» said Bork.

Clustered regularly interspaced short palindromic repeats (CRISPR) / CRISPR - associated (Cas) systems provide bacteria and archaea with adaptive immunity against viruses and plasmids by using CRISPR RNAs (crRNAs) to guide the silencing of invading nucleic acids.

«Our study illustrates that self - guided mutation is relevant to life within Earth's subsurface and uncovers mechanisms by which viruses and archaea can adapt in this hostile environment,» said David Valentine, a professor in UCSB's Department of Earth Science and at the campus's Marine Science Institute (MSI).

A study by the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and the Medical University of Graz has found that the skin microbiome also contains archaea, a type of extreme - loving microbe, and that the amount of it varies with age.

Informed by more than 1,000 newly sequenced types of microbe, Banfield's new tree reveals the diversity and long lineage of bacteria, which, along with eukaryotes and archaea, represent the three main domains of life.

Subgroup characteristics of marine methane - oxidizing ANME - 2 archaea and their syntrophic partners revealed by integrated multimodal analytical microscopy — Shawn E. McGlynn — Applied and Environmental Microbiology

The discovery of the Archaea, also referred to as the Third Domain of Life, by Carl Woese and George Foxrepresents a milestone in the modern era of microbiology.

Since 2001, the examination of sediment from the sea bottom has revealed the presence of another type of Archaea that exist by using methane, an important gas that is contributing to the warming of the Earth's atmosphere.

By weight, the oceans contain about as much archaea as they do fish — up to 4 billion tons» worth.

The Swedish Biodiversity Program aims to target biodiversity of bacteria, viruses, archaea and eukaryotes and combinations thereof to promote large research projects aiming to uncover and understand genomic variability in nature by use of massively parallel sequencing and microbial single cell analysis.

Although Solar radiation and lightning (which has been detected by the ESA's Venus Express probe in 2007) should be producing large amounts of carbon monoxide (CO), the gas was found to be scarce, as if something was removing it (such as hydrogenogens, diverse bacteria and archaea that grow anaerobically utilizing CO as their sole carbon source and water as an electron acceptor to produce carbon dioxide and molecular hydrogen as waste products).

This microbe, which comes from the Archaea family of microbes, uses carbon dioxide and molecular hydrogen as food, releasing methane as a by - product.

A paper published this week in the Proceedings of the National Academy of Science by MIT professor of geophysics Daniel Rothman and other members of the Foundations of Complex Life team suggests the P / T extinction resulted from methane - producing archaea called Methanosarcina suddenly blooming in the oceans.

The audience voted after the presentations and chose the first prizewinner to be «Complex archaea that bridge the gap between prokaryotes and eukaryotes» presented by Anja Spang.

By doing so, I help increase our understanding of the diversity within the Asgard archaea and their evolutionary relation to the eukaryotic domain.

The human body is inhabited by a vast number of bacteria, archaea, viruses, and unicellular eukaryotes.

Emissions of CH4 from most of these sources involve ecosystem processes that result from complex sequences of events beginning with primary fermentation of organic macromolecules to acetic acid (CH3COOH), other carboxylic acids, alcohols, CO2 and hydrogen (H2), followed by secondary fermentation of the alcohols and carboxylic acids to acetate, H2 and CO2, which are finally converted to CH4 by the so - called methanogenic Archaea: CH3COOH → CH4 + CO2 and CO2 + 4H2 → CH4 + 2H2O (Conrad, 1996).