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Streptomyces
''Streptomyces'', from στρεπτός (''streptós''), meaning "twisted", and μύκης (''múkés''), meaning "fungus", is the largest genus of Actinomycetota, and the type genus of the family Streptomycetaceae. Over 700 species of ''Streptomyces'' bacteria have been described. As with the other Actinomycetota, streptomycetes are gram-positive, and have very large genomes with high GC content. Found predominantly in soil and decaying vegetation, most streptomycetes produce spores, and are noted for their distinct "earthy" odor that results from production of a volatile metabolite, geosmin. Different strains of the same species may colonize very diverse environments. Streptomycetes are characterised by a complex secondary metabolism. Between 5-23% (average: 12%) of the protein-coding genes of each ''Streptomyces'' species are implicated in secondary metabolism. Streptomycetes produce over two-thirds of the clinically useful antibiotics of natural origin (e.g., neomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streptomyces Scabies
''Streptomyces'', from στρεπτός (''streptós''), meaning "twisted", and μύκης (''múkés''), meaning "fungus", is the largest genus of Actinomycetota, and the type genus of the family Streptomycetaceae. Over 700 species of ''Streptomyces'' bacteria have been described. As with the other Actinomycetota, streptomycetes are gram-positive, and have very large genomes with high GC-content, GC content. Found predominantly in soil and decaying vegetation, most streptomycetes produce spores, and are noted for their distinct "earthy" odor that results from production of a volatile metabolite, geosmin. Different strains of the same species may colonize very diverse environments. Streptomycetes are characterised by a complex secondary metabolism. Between 5-23% (average: 12%) of the protein-coding genes of each ''Streptomyces'' species are implicated in secondary metabolism. Streptomycetes produce over two-thirds of the clinically useful antibiotics of natural origin (e.g., ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streptomyces Caviscabies
''Streptomyces griseus'' is a species of bacteria in the genus '' Streptomyces'' commonly found in soil. A few strains have been also reported from deep-sea sediments. It is a Gram-positive bacterium with high GC content. Along with most other streptomycetes, ''S. griseus'' strains are well known producers of antibiotics and other such commercially significant secondary metabolites. These strains are known to be producers of 32 different structural types of bioactive compounds. Streptomycin, the first antibiotic ever reported from a bacterium, comes from strains of ''S. griseus''. Recently, the whole genome sequence of one of its strains had been completed. The taxonomic history of ''S. griseus'' and its phylogenetically related strains has been turbulent. ''S. griseus'' was first described in 1914 by Krainsky, who called the species '' Actinomyces griseus''. The name was changed in 1948 by Waksman and Henrici to ''Streptomyces griseus''. The interest in these strains stems f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streptomycetaceae
Streptomycetaceae is a family of the order Streptomycetales. It includes the important genus ''Streptomyces''. This was the original source of many antibiotics, namely streptomycin, the first antibiotic against tuberculosis. Genomics Sequence alignments of actinomycetotal genomes have led to the identification of three conserved signature indels which are unique to the order Streptomycetales. The enzyme PBGD contains a four-amino-acid insertion which is present in all ''Streptomyces'' species and ''Kitasatospora setae'', but not any other Actinomycetota. Similarly, a one- amino-acid insertion is present in a conserved region of adenylate kinase and is found in all ''Streptomyces'' species and '' K. setae'', but is not found in any other Actinomycetota. Five conserved signature proteins have also been identified which are present in various sequenced ''Streptomyces'' species, but not in ''K. setae''; however, as the complete genome of ''K. setae'' has not yet been sequenced, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streptomyces Somaliensis
''Streptomyces somaliensis'' is a proteolytic bacterium species from the genus of '' Streptomyces'' which has been isolated from a mycetoma from the foot of a man in Somalia Somalia, officially the Federal Republic of Somalia, is the easternmost country in continental Africa. The country is located in the Horn of Africa and is bordered by Ethiopia to the west, Djibouti to the northwest, Kenya to the southwest, th .... ''Streptomyces somaliensis'' is a human pathogen and can cause actinomycosis. See also * List of ''Streptomyces'' species References Further reading * * * * * * External linksType strain of ''Streptomyces somaliensis'' at Bac''Dive'' - the Bacterial Diversity Metadatabase somaliensis Bacteria described in 1948 {{Streptomyces-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streptomyces Albus
''Streptomyces albus'' is a bacteria Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, prokaryotic microorganisms. Typically a few micr ...l species from which the pseudodisaccharide aminoglycoside salbostatin was isolated. ''S. albus'' is known to produce white aerial mycelium. References Further reading * External linksType strain of ''Streptomyces albus'' at Bac''Dive'' - the Bacterial Diversity Metadatabase albus {{Streptomyces-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streptomyces Turgidiscabies
''Streptomyces turgidiscabies'' is a streptomycete bacterium species, causing scab in potatoes. It has flexuous spore In biology, a spore is a unit of sexual reproduction, sexual (in fungi) or asexual reproduction that may be adapted for biological dispersal, dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores fo ..., the latter which are cylindrical and smooth. The type strain is SY9113T (= ATCC 700248T = IFO 16080T). It is almost identical to '' Streptomyces reticuliscabiei''; however, they are considered distinct species given the diseases they cause are different. References Further reading *Joshi, Madhumita V., and Rosemary Loria. "Streptomyces turgidiscabies possesses a functional cytokinin biosynthetic pathway and produces leafy galls." Molecular plant-microbe interactions 20.7 (2007): 751–758. * *Thwaites, R., et al. "Streptomyces turgidiscabies and S. acidiscabies: two new causal agents of common scab of potato (S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streptomyces Sudanensis
''Streptomyces sudanensis'' is a bacterium species from the genus of ''Streptomyces'' which has been isolated from patients with actinomycosis infections in Sudan Sudan, officially the Republic of the Sudan, is a country in Northeast Africa. It borders the Central African Republic to the southwest, Chad to the west, Libya to the northwest, Egypt to the north, the Red Sea to the east, Eritrea and Ethiopi .... See also * List of ''Streptomyces'' species References sudanensis Bacteria described in 2008 {{Streptomyces-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streptomyces Acidiscabies
''Streptomyces acidiscabies'' is a streptomycete bacterium species, causing a scab disease of potatoes. Its type strain is RL-110 (= ATCC 49003). References Further reading * *Zhao, W. Q., X. M. Yu, and D. Q. Liu. "First report of Streptomyces acidiscabies causing potato scab in China." New Disease Reports 19 (2009): 29. * * External links *LPSN acidiscabies Bacteria described in 1989 {{Streptomyces-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chloramphenicol
Chloramphenicol is an antibiotic useful for the treatment of a number of bacterial infections. This includes use as an eye ointment to treat conjunctivitis. By mouth or by intravenous, injection into a vein, it is used to treat meningitis, plague (disease), plague, cholera, and typhoid fever. Its use by mouth or by injection is only recommended when safer antibiotics cannot be used. Monitoring both blood levels of the medication and blood cell levels every two days is recommended during treatment. Common side effects include bone marrow suppression, nausea, and diarrhea. The bone marrow suppression may result in death. To reduce the risk of side effects treatment duration should be as short as possible. People with liver or kidney problems may need lower doses. In young infants, a condition known as gray baby syndrome may occur which results in a swollen stomach and Hypotension, low blood pressure. Its use near the end of pregnancy and during breastfeeding is typically not re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria
Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit the air, soil, water, Hot spring, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust. Bacteria play a vital role in many stages of the nutrient cycle by recycling nutrients and the nitrogen fixation, fixation of nitrogen from the Earth's atmosphere, atmosphere. The nutrient cycle includes the decomposition of cadaver, dead bodies; bacteria are responsible for the putrefaction stage in this process. In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bottromycin
Bottromycin is a macrocyclic peptide with antibiotic activity. It was first discovered in 1957 as a natural product isolated from ''Streptomyces bottropensis''. It has been shown to inhibit methicillin-resistant ''Staphylococcus aureus'' (MRSA) and vancomycin-resistant Enterococci (Vancomycin-resistant Enterococcus, VRE) among other Gram-positive bacteria and mycoplasma. Bottromycin is structurally distinct from both vancomycin, a glycopeptide antibiotic, and methicillin, a beta-lactam antibiotic. Bottromycin binds to the A site of the ribosome and blocks the binding of aminoacyl-tRNA, aminoacyl-''t''RNA, therefore inhibiting bacterial protein synthesis. Although bottromycin exhibits antibacterial activity ''in vitro'', it has not yet been developed as a clinical antibiotic, potentially due to its poor stability in blood plasma. To increase its stability ''in vivo'', some bottromycin derivatives have been explored. The structure of bottromycin contains a macrocyclic amidine as we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
