Mycoplasma agalactiae | |
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Scientific classification ![]() | |
Domain: | Bacteria |
Phylum: | Mycoplasmatota |
Class: | Mollicutes |
Order: | Mycoplasmatales |
Family: | Mycoplasmataceae |
Genus: | Mycoplasma |
Species: | M. agalactiae |
Binomial name | |
Mycoplasma agalactiae (Wroblewski 1931) Freundt 1955 | |
Synonyms | |
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Mycoplasma agalactiae is a species of bacteria in the genus Mycoplasma . This genus of bacteria lacks a cell wall around their cell membrane. [1] Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. [2] Mycoplasma are the smallest bacterial cells yet discovered, can survive without oxygen and are typically about 0.1–0.3 μm in diameter. [3]
It is the main agent of contagious agalactia, a syndrome causing clinical signs of mastitis, conjunctivitis, and arthritis in small ruminants. [4] It can be present in their milk. [5] [6] At least eleven strains of this species have been characterized. [7] In serious outbreaks with infections with this pathogen, whole herds have been lost. [8]
The type strain is strain PG2 = CIP 59.7 = NCTC 10123. [9]
Chlamydia pecorum, also known as Chlamydophila pecorum is a species of Chlamydiaceae that originated from ruminants, such as cattle, sheep and goats. It has also infected koalas and swine. C. pecorum strains are serologically and pathogenically diverse.
Mycoplasma mycoides is a bacterial species of the genus Mycoplasma in the class Mollicutes. This microorganism is a parasite that lives in ruminants. Mycoplasma mycoides comprises two subspecies, mycoides and capri, which infect cattle and small ruminants such as goats respectively.
Bovine mastitis is the persistent, inflammatory reaction of the udder tissue due to physical trauma or microorganisms infections. Mastitis, a potentially fatal mammary gland infection, is the most common disease in dairy cattle in the United States and worldwide. It is also the most costly disease to the dairy industry. Milk from cows suffering from mastitis has an increased somatic cell count. Prevention and control of mastitis requires consistency in sanitizing the cow barn facilities, proper milking procedure and segregation of infected animals. Treatment of the disease is carried out by penicillin injection in combination with sulphar drug.
Mycoplasma capricolum is a species of Mycoplasma bacteria. It is primarily a pathogen of goats, but has also been found in sheep and cows. The species requires external sources of cholesterol to grow or survive, but the uptaken fatty acid is not used as a substrate for energy production but rather for phospholipid synthesis instead.
Staphylococcus hyicus is a Gram-positive, facultatively anaerobic bacterium in the genus Staphylococcus. It consists of clustered cocci and forms white circular colonies when grown on blood agar. S. hyicus is a known animal pathogen. It causes disease in poultry, cattle, horses, and pigs. Most notably, it is the agent that causes porcine exudative epidermitis, also known as greasy pig disease, in piglets. S. hyicus is generally considered to not be zoonotic, however it has been shown to be able to cause bacteremia and sepsis in humans.
Listeria ivanovii is a species of bacteria in the genus Listeria. The listeria are rod-shaped bacteria, do not produce spores, and become positively stained when subjected to Gram staining. Of the six bacteria species within the genus, L. ivanovii is one of the two pathogenic species. In 1955 Bulgaria, the first known isolation of this species was found from sheep. It behaves like L. monocytogenes, but is found almost exclusively in ruminants. The species is named in honor of Bulgarian microbiologist Ivan Ivanov. This species is facultatively anaerobic, which makes it possible for it to go through fermentation when there is oxygen depletion.
Mannheimia varigena is a bacterial species, predominantly encountered in ruminants and historically classified within the former bacterial Pasteurella haemolytica complex, a group of bacteria involved in bovine respiratory disease (BRD). It is pathogenic.
Bartonella bovis is a pathogenic bacteria first isolated from European ruminants. It is small, fastidious, aerobic, oxidase-negative, gram-negative and rod-shaped. Its type strain is 91-4T.
Bartonella capreoli is a pathogenic bacteria first isolated from European ruminants. It is small, fastidious, aerobic, oxidase-negative, gram-negative and rod-shaped. Its type strain is IBS 193T.
Mycoplasma adleri is a species of bacteria in the genus Mycoplasma. This genus of bacteria lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. Mycoplasma are the smallest bacterial cells yet discovered, can survive without oxygen and are typically about 0.1 μm in diameter. It is found in goats where it causes infection. The type strain is strain G145 = ATCC 27948 = CIP 105676. Its genome has been determined. M. adleri is gram negative and appears round or coccobacillary in form. Individual cells vary in diameter from 300 to 600 nm, and each is surrounded by a single cytoplasmic membrane. The cell has a ‘fried-egg’ resemblance on a variety of growth media. It is anaerobic.
Mycoplasma amphoriforme is a species of bacteria in the genus Mycoplasma. This genus of bacteria lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. Mycoplasma are the smallest bacterial cells yet discovered, can survive without oxygen and are typically about 0.1 μm in diameter.
Mycoplasma buccale is a species of bacteria in the genus Mycoplasma. This genus of bacteria lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. Mycoplasma are the smallest bacterial cells yet discovered, can survive without oxygen and are typically about 0. 1 μm in diameter.
Mycoplasma faucium is a species of bacteria in the genus Mycoplasma. This genus of bacteria lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. Mycoplasma are the smallest bacterial cells yet discovered, can survive without oxygen and are typically about 0.1 μm in diameter.
Mycoplasma pirum is a species of bacteria in the genus Mycoplasma. This genus of bacteria lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. Mycoplasma are the smallest bacterial cells yet discovered, can survive without oxygen and are typically about 0.1 μm in diameter.
Mycoplasma primatum is a species of bacteria in the genus Mycoplasma. This genus of bacteria lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. Mycoplasma are the smallest bacterial cells yet discovered, can survive without oxygen and are typically about 0. 1 μm in diameter.
Mycoplasma salivarium is a species of bacteria in the genus Mycoplasma. This genus of bacteria lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. Mycoplasma are the smallest bacterial cells yet discovered, and are typically about 0. 1 μm in diameter. Mycoplasma can survive without oxygen.
Mycoplasma spermatophilum is a species of bacteria in the genus Mycoplasma. This genus of bacteria lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. Mycoplasma are the smallest bacterial cells yet discovered, can survive without oxygen and are typically about 0. 1 μm in diameter.
Mycoplasma agassizii is a species of bacteria in the genus Mycoplasma. This genus of bacteria lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. Mycoplasma are the smallest bacterial cells yet discovered, can survive without oxygen and are typically about 0.1 μm in diameter.
Mycoplasma bovis is one of 126 species of genus Mycoplasma. It is the smallest living cell and anaerobic organism in nature. It does not contain any cell wall and is therefore resistant to penicillin and other beta lactam antibiotics.
Corynebacterium pseudotuberculosis is a Gram-positive bacterium known to infect ruminants, horses, and rarely people. It is a facultative anaerobic organism that is catalase-positive and capable of beta-hemolysis. In small ruminants, C. pseudotuberculosis causes a disease called caseous lymphadenitis, which is characterized by pyogranulomatous abscess formation. In general, the bacterium causes lesions of the skin, lymph nodes, and internal organs. A disease known as ulcerative lymphagenitis can also result from infection with C. pseudotuberculosis in the distal limbs of horses. This bacterium uses the virulence factors phospholipase D and mycolic acid to damage eukaryotic cell walls and resist phagocytic lysosomal degradation, respectively. Infection with this bacterium is often confirmed by bacterial culture of the purulent exudate. Once the diagnosis has been made, treatment of the infection can begin, but this is difficult due to the nature of the organism and the lesions it forms. Specifically, C. pseudotuberculosis is intrinsically resistant to streptomycin, with varying resistance to penicillin and neomycin depending on the strain. It has been shown to be susceptible to ampicillin, gentamicin, tetracycline, lincomycin, and chloramphenicol. Vaccines have also been produced to develop acquired immunity to this infection.