The new study found that there are huge microbial populations underground 47 new phylum bacteria 嘿嘿taxi

The new study found that there is a huge population of microbes in the ground: 47 new species of bacteria, including about 1/5 of the earth’s population, are buried underground. Scientists in the United States before the date in Colorado found a huge underground microbial population of new, and the microbial gene sequencing. The Laurence Berkeley National Laboratory and the University of California researchers at Berkeley before the "communication" in the British Nature magazine online edition reported that they were in Colorado, a town near Lai Fu aquifer sediments and groundwater samples were collected, were found in the genome of reconstruction from 2500 kinds of microorganisms. The researchers have obtained nearly 80% of all known bacterial genomes. The discovery of such an abundance of microbes at the same site is shocking. In addition, the researchers found 47 new phyla of bacteria, coupled with the discovery of the last year of the 35, so that the number of known bacteria doubled. They therefore re engineer the "tree of life" used to describe the evolution of species". The study also found a high degree of interdependence between the underground microbes, and further understanding of how the underground microorganisms involved in the carbon cycle, nitrogen cycle, hydrogen cycle and other important cycles on the earth. These cycles are very important to the earth’s atmosphere and life, and understanding them will help to more accurately reflect such cycles in the predictive models of climate simulation. The researchers observed that there is a phenomenon called microbial metabolism in the microbial community, that is, a microbial metabolite to become another kind of microbial food. The circulation of these substances is driven by metabolic switching, which requires a high degree of interdependence between microorganisms. In addition, most microorganisms can not be a single degradation of a compound, but also the need for "teamwork" between microorganisms". For example, nitrate can be reduced to harmless nitrogen in groundwater. The denitrification process is carried out in 4 steps, the first step is to produce greenhouse gases, nitrous oxide, nitrogen, and the third step of the process is carried out in two steps. If the microbes involved in the fourth step are not active and do not accept the switching of the metabolism of nitrogen monoxide, the denitrification fails, and the greenhouse gas will enter the atmosphere of the two. Laurence Berkeley, senior scientist and Laboratory of atmospheric science, ecological system at the University of California Berkeley Department of earth and planetary science professor Jill Banfield said, the height of the microbial diversity and metabolism via the switch connected, is likely to create a rich diversity of ecological system.相关的主题文章:

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