Search results
Results from the WOW.Com Content Network
Bacteriophages introduce a gene into the bacterial cells that makes a strain toxigenic. The strains that are not infected with these viruses are harmless. [5] C. diphtheriae is a rod-shaped, Gram-positive, non spore-forming, and nonmotile bacterium. [17] C. diphtheriae has shown to exclusively infect humans. It is believed that humans may be ...
The Journal of Bacteriology is a monthly peer-reviewed scientific journal established in 1916. It is published by the American Society for Microbiology and the editor in chief is George A. O'Toole Jr. ( Dartmouth College ).
One process is a one-step mechanism in which proteins from the cytoplasm of bacteria are transported and delivered directly through the cell membrane into the host cell. Another involves a two-step activity in which the proteins are first transported out of the inner cell membrane, then deposited in the periplasm , and finally through the outer ...
colonization of a niche in the host (this includes movement towards and attachment to host cells) [1] [2] immunoevasion, evasion of the host's immune response [1] [2] [3] immunosuppression, inhibition of the host's immune response (this includes leukocidin-mediated cell death) [1] entry into and exit out of cells (if the pathogen is an ...
A GBD study estimated the global death rates from (33) bacterial pathogens, finding such infections contributed to one in 8 deaths (or ~7.7 million deaths), which could make it the second largest cause of death globally in 2019. [6] [3] Most pathogenic bacteria can be grown in cultures and identified by Gram stain and other methods.
Cystic fibrosis patients are also predisposed to P. aeruginosa infection of the lungs due to a functional loss in chloride ion movement across cell membranes as a result of a mutation. [42] P. aeruginosa may also be a common cause of "hot-tub rash" ( dermatitis ), caused by lack of proper, periodic attention to water quality.
Swarming cells are only formed when the bacteria are grown on solid surfaces so the ability to detect these solid surfaces is a required feature. It has been proposed that Proteus mirabilis senses a solid surface by the inhibition of its flagellum rotation, and it is this lack of freely rotating flagella that let the bacteria know it is on a ...
S. pneumoniae expresses different virulence factors on its cell surface and inside the organism. These virulence factors contribute to some of the clinical manifestations during infection with S. pneumoniae. [citation needed] Polysaccharide capsule—prevents phagocytosis by host immune cells by inhibiting C3b opsonization of the bacterial cells