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Listeria
''Listeria'' is a genus of bacteria that acts as an intracellular parasite in mammals. Until 1992, 17 species were known, each containing two subspecies. By 2020, 21 species had been identified. The genus is named in honour of the British pioneer of sterile surgery Joseph Lister. ''Listeria'' species are Gram-positive, rod-shaped, and facultatively anaerobic, and do not produce endospores. The major human pathogen in the genus ''Listeria'' is ''L. monocytogenes''. It is usually the causative agent of the relatively rare bacterial disease listeriosis, an infection caused by eating food contaminated with the bacteria. Listeriosis can cause serious illness in pregnant women, newborns, adults with weakened immune systems and the elderly, and may cause gastroenteritis in others who have been severely infected. Listeriosis is a serious disease for humans; the overt form of the disease has a case-fatality rate of around 20%. The two main clinical manifestations are sepsis an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Monocytogenes PHIL 2287 Lores
''Listeria'' is a genus of bacteria that acts as an intracellular parasite in mammals. Until 1992, 17 species were known, each containing two subspecies. By 2020, 21 species had been identified. The genus is named in honour of the British pioneer of sterile surgery Joseph Lister, 1st Baron Lister, Joseph Lister. ''Listeria'' species are Gram-positive, Bacillus (shape), rod-shaped, and Facultative anaerobic organism, facultatively anaerobic, and do not produce endospores. The major human pathogen in the genus ''Listeria'' is ''Listeria monocytogenes, L. monocytogenes''. It is usually the causative agent of the relatively rare bacterial disease listeriosis, an infection caused by eating foodborne illness, food contaminated with the bacteria. Listeriosis can cause serious illness in pregnancy, pregnant women, neonate, newborns, adults with immunodeficiency, weakened immune systems and the old age, elderly, and may cause gastroenteritis in others who have been severely infected. L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Monocytogenes Grown On Listeria Selective Agar
''Listeria'' is a genus of bacteria that acts as an intracellular parasite in mammals. Until 1992, 17 species were known, each containing two subspecies. By 2020, 21 species had been identified. The genus is named in honour of the British pioneer of sterile surgery Joseph Lister. ''Listeria'' species are Gram-positive, rod-shaped, and facultatively anaerobic, and do not produce endospores. The major human pathogen in the genus ''Listeria'' is ''L. monocytogenes''. It is usually the causative agent of the relatively rare bacterial disease listeriosis, an infection caused by eating food contaminated with the bacteria. Listeriosis can cause serious illness in pregnant women, newborns, adults with weakened immune systems and the elderly, and may cause gastroenteritis in others who have been severely infected. Listeriosis is a serious disease for humans; the overt form of the disease has a case-fatality rate of around 20%. The two main clinical manifestations are sepsis and men ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Valentina
''Listeria'' is a genus of bacteria that acts as an intracellular parasite in mammals. Until 1992, 17 species were known, each containing two subspecies. By 2020, 21 species had been identified. The genus is named in honour of the British pioneer of sterile surgery Joseph Lister. ''Listeria'' species are Gram-positive, rod-shaped, and facultatively anaerobic, and do not produce endospores. The major human pathogen in the genus ''Listeria'' is ''L. monocytogenes''. It is usually the causative agent of the relatively rare bacterial disease listeriosis, an infection caused by eating food contaminated with the bacteria. Listeriosis can cause serious illness in pregnant women, newborns, adults with weakened immune systems and the elderly, and may cause gastroenteritis in others who have been severely infected. Listeriosis is a serious disease for humans; the overt form of the disease has a case-fatality rate of around 20%. The two main clinical manifestations are sepsis and men ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Monocytogenes
''Listeria monocytogenes'' is the species of pathogenic bacteria that causes the infection listeriosis. It is a facultative anaerobic bacterium, capable of surviving in the presence or absence of oxygen. It can grow and reproduce inside the host's cells and is one of the most virulent foodborne pathogens: 20 to 30% of foodborne listeriosis infections in high-risk individuals may be fatal. Responsible for an estimated 1,600 illnesses and 260 deaths in the United States annually, listeriosis ranks third in total number of deaths among foodborne bacterial pathogens, with fatality rates exceeding even '' Salmonella'' spp. and ''Clostridium botulinum''. In the European Union, listeriosis follows an upward trend that began in 2008, causing 2,161 confirmed cases and 210 reported deaths in 2014, 16% more than in 2013. Listeriosis mortality rates are also higher in the EU than for other foodborne pathogens. ''Listeria monocytogenes'' is a Gram-positive bacterium, in the phylum Bacillot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Ivanovii
''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 (the other being ''L. monocytogenes''). 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 (mainly sheep). 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. Table Morphological, physiological, and biochemical characteristics of ''Listeria ivanovii'' are shown in the Table below. Note: + = Positive, - = Negative L. Ivanovii conony characteristics are observed on nutrient agar plates or slants. Distinction ''Listeria ivanovi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Grayi
''Listeria grayi'' is a species of bacteria. It is a Gram-positive, facultatively anaerobic, motile, non-spore-forming bacillus. It is non-hemolytic. The species was first proposed in 1966. It is named after M.L. Gray, an early researcher in ''L. monocytogenes'' There are two subspecies of ''L. grayi'': ''L. gray'' subs. ''grayi'', and ''L. grayi'' subsp. ''murrayi''. ''Listeria murrayi'' (named after a co-founder of ''L. monocytogenes ''Listeria monocytogenes'' is the species of pathogenic bacteria that causes the infection listeriosis. It is a Facultative anaerobic organism, facultative anaerobic bacterium, capable of surviving in the presence or absence of oxygen. It can gro ...'') was originally a separate species of ''Listeria'' when proposed in 1971. However, there was controversy over whether ''L. grayi'' and ''L. murrayi'' were the same species, or belonged in genus ''Listeria'' altogether. In 1974, researchers suggested that a new genus be created for the two species, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Innocua
''Listeria innocua'' is a species of Gram-positive, rod-shaped bacteria. It is motile, facultatively anaerobic, and non-spore-forming. ''L. innocua'' was named ''innocua'' (innocuous) because, in contrast to '' Listeria monocytogenes'', it does not readily cause disease in mammals. Another '' Listeria'' species, '' L. seeligeri'', was named after one of the discoverers of ''L. innocua''. Biochemically, ''L. innocua'' is very similar to ''L. monocytogenes'', except that ''L. innocua'' is usually non-hemolytic, arylamidase-positive, and phosphoinositide phospholipase C-negative. Although it is not generally considered a human pathogen, ''L. innocua'' was identified in 2003 as the cause of death of a 62-year-old, otherwise healthy, woman. As with other species in the genus, ''L. innocua'' occurs commonly in the environment (such as soil) and in food. Strains of ''L. innocua'' have been shown to be able to form biofilm A biofilm comprises any syntrophic consortium of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Seeligeri
''Listeria seeligeri'' is a Gram-positive, facultatively anaerobic, motile, nonspore-forming, bacillus-shaped species of bacteria. It is not pathogenic. The species was first isolated from plants, soil, and animal feces in Europe, was first proposed in 1983, and is named after Heinz P. R. Seeliger. Seeliger first proposed the species '' L. ivanovii'' and ''L. innocua'', and published extensively on members of the genus ''Listeria''. ''L. seeligeri'' is one of only three species of ''Listeria'' that is hemolytic, along with ''L. ivanovii'' and ''L. monocytogenes ''Listeria monocytogenes'' is the species of pathogenic bacteria that causes the infection listeriosis. It is a Facultative anaerobic organism, facultative anaerobic bacterium, capable of surviving in the presence or absence of oxygen. It can gro ...''.Daniel Weller, Alexis Andrus, Martin Wiedmann and Henk C. den Bakker. Listeria booriae sp. nov. and Listeria newyorkensis sp. nov., from food processing environments in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Goaensis
'Listeria goaensis'' is a new species identified under the genus ''Listeria''. The type strain of the species was isolated from the sediment of estuarine mangrove swamp of the Mandovi river, Goa, India. The species shows weak hemolysis Hemolysis or haemolysis (), also known by several other names, is the rupturing (lysis) of red blood cells (erythrocytes) and the release of their contents (cytoplasm) into surrounding fluid (e.g. blood plasma). Hemolysis may occur in vivo o ... on 5% sheep and horse-blood agar plates. In 2018, two samples from mangrove swamps in Goa, India were tested and found to contain ''Listeria''-like cultures. 16S rRNA gene sequences showed 93.7–99.7% nucleotide identity to other ''Listeria'' species. Other resemblances to ''Listeria'' species included (despite specific differences) the overall fatty acid composition. However, various differences from other Listeria species (as indicated by WGS-based average nucleotide identity and in silico DNAâ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Aquatica
''Listeria aquatica'' is a Gram-positive, facultatively anaerobic, nonmotile, non-spore-forming rod-shaped species of bacteria. It is not pathogenic. It was discovered from running water in Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ..., and was first described in 2014. Its name comes from Latin, "found in water, aquatic".Henk C. den Bakker, Steven Warchocki, Emily M. Wright, Adam F. Allred, Christina Ahlstrom, Clyde S. Manuel, Matthew J. Stasiewicz, Angela Burrell, Sherry Roof, Laura K. Strawn, Esther Fortes, Kendra K. Nightingale, Daniel Kephart and Martin Wiedmann. Listeria floridensis sp. nov., Listeria aquatica sp. nov., Listeria cornellensis sp. nov., Listeria riparia sp. nov. and Listeria grandensis sp. nov., from agricultural and natural environments. Internati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Riparia
Listeria riparia is a species of bacteria. It is a Gram-positive, facultatively anaerobic, non-motile, non-spore-forming bacillus. It is non-pathongenic. Its name refers to the riparian zone, and its discovery was first published in 2014.Henk C. den Bakker, Steven Warchocki, Emily M. Wright, Adam F. Allred, Christina Ahlstrom, Clyde S. Manuel, Matthew J. Stasiewicz, Angela Burrell, Sherry Roof, Laura K. Strawn, Esther Fortes, Kendra K. Nightingale, Daniel Kephart and Martin Wiedmann. Listeria floridensis sp. nov., Listeria aquatica sp. nov., Listeria cornellensis sp. nov., Listeria riparia sp. nov. and Listeria grandensis sp. nov., from agricultural and natural environments. International Journal of Systematic and Evolutionary Microbiology (2014), 64, 1882–1889. ''Listeria riparia'' "(c)an be differentiated from other non-motile species of the genus ''Listeria'' by a combination of α-mannosidase activity and the ability to acidify L-rhamnose, D-galactose and L-arabinose." Refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listeria Cornellensis
''Listeria cornellensis'' is a species of bacteria. It is a Gram-positive, facultatively anaerobic, non-motile, non-spore-forming bacillus. It is non-pathogenic. The species was named after Cornell University Cornell University is a private statutory land-grant research university based in Ithaca, New York. It is a member of the Ivy League. Founded in 1865 by Ezra Cornell and Andrew Dickson White, Cornell was founded with the intention to ..., and its discovery was first published in 2014.Henk C. den Bakker, Steven Warchocki, Emily M. Wright, Adam F. Allred, Christina Ahlstrom, Clyde S. Manuel, Matthew J. Stasiewicz, Angela Burrell, Sherry Roof, Laura K. Strawn, Esther Fortes, Kendra K. Nightingale, Daniel Kephart and Martin Wiedmann. Listeria floridensis sp. nov., Listeria aquatica sp. nov., Listeria cornellensis sp. nov., Listeria riparia sp. nov. and Listeria grandensis sp. nov., from agricultural and natural environments. International Journal of Systematic and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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