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Listeria is a genus of bacteria that acts as an intracellular parasite in mammals. Until 1992, 10 species were known, each containing two subspecies. By 2020, 21 species had been identified. The genus received its current name, after the British pioneer of sterile surgery Joseph Lister, in 1940. 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.
Ipomoea aquatica is a semi-aquatic, tropical plant grown as a vegetable for its tender shoots and it is not known where it originated. This plant is known in English as water spinach, river spinach, water morning glory, water convolvulus, or by the more ambiguous names Chinese spinach, Chinese watercress, Chinese convolvulus or swamp cabbage, or kangkong in Southeast Asia and ong choy in Cantonese.
Flavobacterium is a genus of Gram-negative, nonmotile and motile, rod-shaped bacteria that consists of 130 recognized species. Flavobacteria are found in soil and fresh water in a variety of environments. Several species are known to cause disease in freshwater fish.
Brunneosporella is a fungal genus in the Annulatascaceae family of the Ascomycota. The relationship of this taxon to other taxa within the Sordariomycetes class is unknown, and it has not yet been placed with certainty into any order. This is a monotypic genus, containing the single species Brunneosporella aquatica. The type specimen was found in rotting wood, found submerged in fresh water in Hong Kong.
Listeria ivanovii is a species of bacteria in the genus Listeria. The listeria are rod-shaped bacteria 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. It behaves like L. monocytogenes, but is found almost exclusively in ruminants. The species is named in honor of Bulgarian microbiologist Ivan Ivanov.
Psychrobacter alimentarius is a Gram-negative, non-spore-forming, nonmotile bacterium of the genus Psychrobacter which was isolated from squid jeotgal, a traditional Korean fermented seafood, in South Korea
Psychrobacter cibarius is a Gram-negative, nonmotile bacterium of the genus Psychrobacter, which was isolated from jeotgal in Korea.
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.
Listeria cornellensis is a species of bacteria. It is a Gram-positive, facultatively anaerobic, non-motile, non-spore-forming bacillus. It is non-pathongenic. The species was named after Cornell University, and its discovery was first published in 2014.
Listeria floridensis is a species of bacteria. It is a Gram-positive, facultatively anaerobic, non-motile, non-spore-forming bacillus. It is non-pathongenic and non-hemolytic. The species was discovered in and named after Florida, and its discovery was first published in 2014.
Listeria grandensis is a species of bacteria. It is a Gram-positive, facultatively anaerobic, non-motile, non-spore-forming bacillus. It is non-pathongenic and non-hemolytic. The species was discovered in and named after Grand County, Colorado, and its discovery was first published in 2014.
Listeria booriae is a Gram-positive, facultatively anaerobic, nonmotile, non-spore-forming rod-shaped species of bacteria. It is not pathongenic and nonhemolytic. It was discovered in a dairy processing plant in the Northeastern United States, and was first described in 2015. The species name honors "Kathryn Boor, a United States food scientist, for her contribution to the understanding of the biology of Listeria."
Listeria weihenstephanensis is a species of bacteria. It is a Gram-positive, facultatively anaerobic, non-motile, non-spore-forming bacillus. It is non-pathongenic and non-hemolytic. It was discovered in a Lemna trisulca plant in a pond in Bavaria, Germany. The species name reflects the region in which it was first isolated, and was first published in 2013.
Listeria fleischmannii is a species of bacteria. It is a Gram-positive, facultatively anaerobic, non-motile, non-spore-forming bacillus. It is non-pathogenic and non-hemolytic. The species was first isolated in 2006 in Switzerland from hard cheese. The species is named after Wilhelm Fleischmann, a pioneer in the research of dairy products.
Listeria seeligeri is a species of bacteria. It is a Gram-positive, facultatively anaerobic, motile, non-spore-forming bacillus. It is non-pathogenic. The species was first isolated from plants, soil, and animal feces in Europe. The species 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.
Brachybacterium is a genus of Gram positive, nonmotile bacteria. The cells are coccoid during the stationary phase, and irregular rods during the exponential phase. The genus name comes from Greek word brachy, meaning short, and Latin bacterium, meaning rods, referencing the short rods noted during the exponential phase.
Roseomonas aquatica is a species of Gram negative, strictly aerobic, coccobacilli-shaped, pale pink-colored bacterium. It was first isolated from drinking water from Seville, Spain. The species name is derived from the Latin aquatica.
Aquatica hydrophila is a species of firefly found in Taiwan. Described in 2003, it was formerly placed in the genus Luciola. The larvae are aquatic and live in ditches and small streams.
Perlucidibaca aquatica is a Gram-negative, strictly aerobic, rod-shaped and non-motile bacterium from the genus of Perlucidibaca which has been isolated from water from a limestone cave from Samcheok in Korea.
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 on 5% sheep and horse-blood agar plates.
References
- ↑ 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.
