Streptococcus.

From MicrobeWiki, student edited microbiology resource pages

kind Streptococcus Streptococcus acidominimus, S. agalactiae, S. alactolyticus, S. anginosus, S. anthrax, S. Southern, S. Bovi, S. dog S. castoreus, S. constellatus, S. criae, S. criceti, S. comb, S. devriesei, S. didelphis, S. downei, S. dysgalactiae group C. entericus, S. horse, S. Ferus, S. gallinaceus, S. gallolyticus, S. genomosp. C1, C genomosp. C2, S. genomosp. C3, S. genomosp. C4, C genomosp. C5, S. genomosp. C6, C. genomosp. C7, S. genomosp. C8, S. Gordonii, S. halichoeri, C. hyointestinalis, C. hyovaginalis, S. infantarius, S. infantis, S. iniae, S. intermedius, S. luteciae, S. lutetiensis, S. macacae, S. macedonicus, S. marimammalium, S. massiliensis, S. milleri, S. minor, S. tShz, S. mutans, S. oligofermentans, S. Oral, S. orisratti, C. Ovis, S. parasanguinis, S. parauberis, S. pasteuri, S. pasteurianus, S. peroris, S. phocae, S. pluranimalium, S.pneumoniae, S. porcinus, S. pseudopneumoniae, S. pyogenes, S. Ratti, S. salivarius, S. sanguinis, S. sciuri, C. Sinensis, S. sobrinus, S. suyis, S. thermophilus S. thoraltensis, S. uberis, S. urinalis, S. vestibularis, S. viridens, SP

streptococci represent a different genus, infecting flurry of different animals, including humans, diseases, from streptococcal throat in necrotic fastsyyt. They came to public attention recently, antibiotic-resistant strains began to appear and cause epidemics. In an effort to combat the evolution of these clever pathogens, scientists sekvenuvaly genomes 9 different strains in 4 different types

Streptococcus. The sequences of the gene for a circular chromosome Twelves pecies streptococci were consistently:,,,,, and

. Genome

pyogenes Streptococcus is 1852442 base pairs containing 1752 predicted protein-coding genes. Researchers have identified more than 40 virulence associated genes

S. pyogenes

genome, combined with its ability to cause various human diseases. Researchers also found many genes that encode proteins that help the "molecular mimicry" when the bacterium is masked, portraying themselves as the center, which is part of the site. Genome S. pneumonia

is 2038615 pairs of 2043 predicted protein-coding regions. S. pneumonia

has a high ability to absorb DNA and, hence, its genome contains many genes that are likely derived from other bacteria. More than 53% of genes S. pneumonia are very similar counterparts Bacillus

subtilius genome. Both very Prototype gram-positive bacteria. Genome S. agalactiae

containing 2160167 base pairs with 2175 predicted protein-coding regions. Genome S.

Agalactiae is very similar to other species such as Streptococcus pyogenes S.

And S. pneumonia, but differs in several metabolic pathways and membrane transport system. These differences are related to adaptation to the host environment. Genome S. mutans

containing 2030936 base pairs from 1963 predicted protein-coding regions. S. mutans

is a major cause of tooth decay worldwide. S. mutans

capable of metabolism of a wide variety of carbohydrates than any other Gram-positive organism is consistency. S. mutans

also has an extensive transport system (coding takes about 15% of the genome) that he uses to absorb sugar from the environment. Obviously

S. mutans

largely depends on its host for resources. Streptococci immobile, gram-positive, asporogenous bacteria that live in pairs or chains of different lengths. They are characterized by round or ovoid shape. Most streptococci are facultative anaerobes, although some obligate anaerobes. Typically, they require complex nutrient medium to grow. Many streptococci simulate aspects of the host to avoid detection. Capsule S

pyogenes treptococcus chemically similar to the connective tissue of its host, and therefore, nonantigenic, and its cytoplasmic membrane has antigens similar to human cardiac skeletal and smooth muscle. Streptococci are part of the normal microflora of animals. While some may lead to disease. The transition from delays to virulence is not well understood, but sequencing genomes

Streptococcus assists researchers in understanding better the mechanisms of streptococci. Infection by streptococci are divided into several categories, depending on the composition of their cell wall. Groups A and B are the most common and devastating pathogen to humans. Group

Streptococcus bacteria cause diseases ranging from streptococcal sore throat (sore throat) in necrotic fastsyyt (meat-eating disease). They can also cause scarlet fever, rheumatic fever, postpartum fever, and streptococcal toxic shock syndrome. S. pyogenes

You can count their number, as one of the main agents of the group streptococci. Necrotizing fastsyyt is one of the most deadly infections streptococcus, due to its rapid progression. This infection, caused by deadly strain of streptococcus group, which attacks the deep layers of tissue (fascia). Deformation is generally not as aggressive, and he thought that his sudden virulence caused by horizontal transfer of genes from bacteriophage. Strep toxic shock syndrome is another serious strep infection that progresses very quickly. This leads to a dangerous decrease in blood pressure, kidney damage, liver and lungs, and eventually shot. Due to rapid progression, the damage is strattera dosing usually done before the disease can be diagnosed even, let alone treatment. Group B streptococci cause life-threatening diseases in infants, pregnant women, the elderly and adults with weakened immune systems. Group B streptococcal infection is different from other infections, strep, that person may be colonized by bacteria before symptoms are obvious. This means that people can carry the bacteria in the body, but not infected and not show any symptoms. Group B streptococcus can be carried in the gastrointestinal tract, genital, or urinary tract, and only become dangerous when they get into the blood. Among the group B infection is pneumonia. Pneumonia can be caused by a barrage of different things, including viruses and fungi, but most often caused by pneumococcus

(see above in the genome), also called pneumococcus, which is the only type of pneumonia for which a vaccine. S. pneumonia

often present in healthy throat and develop only in severe infections when host defenses depleted by factors such as age, disease (eg AIDS), or malnutrition. How fastsyyt necrotic and toxic shock syndrome, bacterial pneumonia progresses rapidly changing with the sudden start of high fever. But seriously, the infection can become invasive and is manifested as meningitis (infection of cerebrospinal fluid). Streptococci were the focus of a number of medical research because emerging, antibiotic-resistant strains. Studies on new antibiotics to treat disease and new vaccines to prevent them escalated in recent years. And about streptococci increased from genome sequencing of four different types of streptococci. Streptococci has been shown that resistance to erythromycin and penicillin, but they also showed that resistance macrolide antibiotics. But low and prolonged exposure to macrolide antibiotics seem to allow streptococci to develop resistance to itself, but it also makes them resistant to penicillin and erythromycin. The study centers were streptococci with high resistance to macrolide and penicillin resistance. Streptococcus suyis, types of streptococci in pigs, recently caused a rash of infections rights in China. Person to person contact does not appear to be bacteria mode of transport, and,

Streptococcus suyis compressed by contact with or eating infected pigs. Currently the death toll from the disease is 37, an unusually high mortality rate that some scientists suspect that swine flu may not be disease. Famous vaccines were produced in China for some time due to lack of demand, but is now producing the vaccine is in the light of the outbreak. (Information from Reuters Alert Network).