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The transfer of an integrated ICE element from the donor to recipient bacterium must be preceded by its excision from the chromosome that is co-promoted by small DNA-binding proteins, the so-called recombination directionality factors. The dynamics of the integration and excision processes are specific to each integrative and conjugative element.
Water is the medium of the oceans, the medium which carries all the substances and elements involved in the marine biogeochemical cycles. Water as found in nature almost always includes dissolved substances, so water has been described as the "universal solvent" for its ability to dissolve so many substances.
[2] [3] Marine microorganisms have been variously estimated to make up about 70%, [4] or about 90%, [5] [6] of the biomass in the ocean. Taken together they form the marine microbiome. Over billions of years this microbiome has evolved many life styles and adaptations and come to participate in the global cycling of almost all chemical elements ...
Brine salinity can increase to as much as 100 PSU when sea ice temperature reaches ~3 °C below the freezing point of seawater. [5] Brine temperature typically ranges from -1.9 to -6.7 °C in the winter. [6] Sea ice temperatures fluctuate in response to irradiance and atmospheric temperatures, but also change in response to the volume of snowfall.
A microbiome (from Ancient Greek μικρός (mikrós) ' small ' and βίος (bíos) ' life ') is the community of microorganisms that can usually be found living together in any given habitat. It was defined more precisely in 1988 by Whipps et al. as "a characteristic microbial community occupying a reasonably well-defined habitat which has ...
Algae is present in almost all ice-free areas and occurs in soils, as epiphytes on mosses, in cyanobacterial mats and in plankton of lakes and ponds. [8] It is also possible to find algae associated with rocks or living in the thin film of melted water in the snow patches. [ 8 ]
Microbes.info is a microbiology information portal containing a vast collection of resources including articles, news, frequently asked questions, and links pertaining to the field of microbiology. Our Microbial Planet Archived 15 February 2013 at the Wayback Machine A free poster from the National Academy of Sciences about the positive roles ...
Microbiology (from Ancient Greek μῑκρος (mīkros) ' small ' βίος (bíos) ' life ' and -λογία ' study of ') is the scientific study of microorganisms, those being of unicellular (single-celled), multicellular (consisting of complex cells), or acellular (lacking cells).