Search results
Results From The WOW.Com Content Network
In gram-positive bacteria, the S-layer is attached to the peptidoglycan layer. Gram-negative bacteria's S-layer is attached directly to the outer membrane. Specific to gram-positive bacteria is the presence of teichoic acids in the cell wall. Some of these are lipoteichoic acids, which have a lipid component in the cell membrane that can assist ...
Staphylococcus pseudintermedius is a gram-positive spherically shaped bacterium of the genus Staphylococcus [1] found worldwide. [2] It is primarily a pathogen for domestic animals, [3] [4] but has been known to affect humans as well. [5]
Arcanobacterium haemolyticum is a species of bacteria classified as a gram-positive bacillus. It is catalase-negative, facultative anaerobic, beta-hemolytic, and not motile. [1] It has been known to cause head and neck infections, pharyngitis, and sinusitis (Arcanobacterium haemolyticum infections). [1]
Listeria species are Gram-positive, rod-shaped, and facultatively anaerobic, and do not produce endospores. [4] The major human pathogen in the genus is L. monocytogenes. Although L. monocytogenes has low infectivity, it is hardy and can grow in a refrigerator temperature of 4 °C (39.2 °F) up to the human body temperature of 37 °C (98.6 °F ...
Clostridium perfringens (formerly known as C. welchii, or Bacillus welchii) is a Gram-positive, bacillus (rod-shaped), anaerobic, spore-forming pathogenic bacterium of the genus Clostridium. [ 1 ] [ 2 ] C. perfringens is ever-present in nature and can be found as a normal component of decaying vegetation, marine sediment , the intestinal tract ...
Group B streptococcal infection, also known as Group B streptococcal disease or just Group B strep infection, is the infectious disease caused by the bacterium Streptococcus agalactiae. Streptococcus agalactiae is the most common human pathogen belonging to group B of the Lancefield classification of streptococci —hence the name of group B ...
The bacterium is a gram-positive prokaryote that assumes a 'club-like' morphology, more formally known as a corynebacteria structure. [1] [3] [4] It is non-lipophilic and undergoes aerobic respiration. It is a facultative anaerobe. It is catalase negative and is an oxidase positive glucose and sucrose fermenter. [1] [3]
Anaerobic gram-positive bacilli affecting human beings are generally divided into two distinct groups, those that form spores (Clostridium spp.) and those that do not form spores. Within the spore-forming group of Clostridium species, some are very pathogenic or toxigenic ( C. perfringens ) while others are rarely pathogenic.