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  1. 2 days ago · Type and morphology. E. coli is a gram-negative, facultative anaerobe, nonsporulating coliform bacterium. Cells are typically rod-shaped, and are about 2.0 μm long and 0.25–1.0 μm in diameter, with a cell volume of 0.6–0.7 μm 3.

    • EPEC

      Introduction. E. coli and related bacteria constitute about...

    • Gram-negative

      Microscopic image of gram-negative Pseudomonas aeruginosa...

    • Enterobacteriaceae

      Enterobacteriaceae is a large family of Gram-negative...

  2. 5 days ago · Prochlorococcus, an influential marine cyanobacterium which produces much of the world's oxygen. Cyanobacteria are globally widespread photosynthetic prokaryotes and are major contributors to global biogeochemical cycles. [25] They are the only oxygenic photosynthetic prokaryotes, and prosper in diverse and extreme habitats. [26]

  3. en.wikipedia.org › wiki › NucleoidNucleoid - Wikipedia

    3 days ago · The E. coli chromosome was found to consist of 31 CIDs in the growth phase. The size of the CIDs ranged from 40 to ~300 kb. It appears that a supercoiling-diffusion barrier responsible for segregating plectonemic DNA loops into topological domains functions as a CID boundary in E. coli and many other bacteria. In other words, the presence of a ...

  4. 3 days ago · Gut microbiota. Escherichia coli, one of the many species of bacteria present in the human gut. Gut microbiota, gut microbiome, or gut flora are the microorganisms, including bacteria, archaea, fungi, and viruses, that live in the digestive tracts of animals.

  5. 5 days ago · Colony Morphology. Almost all organisms grow on this agar giving grey colonies of various sizes. However, it’s use is specifically to isolate fastidious pathogens such as Neisseria and Haemophilus, their colony morphologies are below.

  6. 5 days ago · Methicillin-resistant Staphylococcus aureus (MRSA, often pronounced / ˈmɜːrsə / or / ɛm ɑːr ɛs eɪ / ), is one of a number of greatly feared strains of S. aureus which have become resistant to most β-lactam antibiotics. For this reason, vancomycin, a glycopeptide antibiotic, is commonly used to combat MRSA.

  7. 5 days ago · Antibiotic resistance, loss of susceptibility of bacteria to the killing (bacteriocidal) or growth-inhibiting (bacteriostatic) properties of an antibiotic agent. When a resistant strain of bacteria is the dominant strain in an infection, the infection may be untreatable and life-threatening.

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