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Xochitecatl [ʃot͡ʃiˈtekat͡ɬ] is a pre-Columbian archaeological site located in the Mexican State of Tlaxcala, 18 km southwest of Tlaxcala city. [1] The major architecture dates to the Middle Preclassic Period (1000–400 BC) but occupation continued, with one major interruption, until the Late Classic , when the site was abandoned.
Myxococcus is a genus of bacteria in the family Myxococcaceae. Myxococci are Gram-negative, spore-forming, chemoorganotrophic, obligate aerobes. They are elongated rods with rounded or tapered ends, and they are nonflagellated. The cells utilize gliding motility to move and can predate other bacteria. The genus has been isolated from soil.
Carl Linnaeus made the classification "domain" popular in the famous taxonomy system he created in the middle of the eighteenth century. This system was further improved by the studies of Charles Darwin later on but could not classify bacteria easily, as they have very few observable features to compare to the other domains.
This is achievable in some well-studied bacteria, with models of Escherichia coli metabolism now being produced and tested. [ 237 ] [ 238 ] This understanding of bacterial metabolism and genetics allows the use of biotechnology to bioengineer bacteria for the production of therapeutic proteins, such as insulin , growth factors , or antibodies .
M. xanthus is typically found in the top most layer of soil, preying as a "pack" on other microorganisms like bacteria or fungi. [7] It is a neutralophile, growing best between a pH of 7.2-8.2. [8] The bacteria are mesophiles, growing best within the temperature range of 34-36°C.
The root microbiome (also called rhizosphere microbiome) is the dynamic community of microorganisms associated with plant roots. [1] Because they are rich in a variety of carbon compounds, plant roots provide unique environments for a diverse assemblage of soil microorganisms, including bacteria, fungi, and archaea.
While tetanus toxin is produced from Clostridium tetani, a spore forming bacteria found in soil, Tetanus is a paralytic disease that is global and commonly affects newborns as well as non-immunized individuals. Tetanus enters the body of organisms through wounds or skin breaks and can be found in manure, soil, and dust.
Colibactin is only produced by bacterial strains containing a polyketide synthase genomic island (pks) [1] or clb biosynthetic gene cluster. [4] About 20% of humans in high-income countries are colonized with E. coli that harbor the pks island. [5] [6] Colibactin forms DNA inter-strand cross-links by alkylation of adenine moieties on opposing ...