Aerococcus

 ( Bacteria Genera ) 

Aerococcus, from Ancient Greek ( aḗr), meaning "air", and ( kókkos), meaning "berry", is a genus of bacterium in the phylum Bacillota (Bacteria). The genus was first identified in 1953 from samples of air and dust as a catalase-negative, Gram stain-positive coccus that grew in small clusters. They were subsequently found in hospital environments and meat-curing brines. It has been difficult to identify as it resembles Streptococcus on Agar plate and is difficult to identify by biochemical means. Sequencing of 16S rRNA has become the gold standard for identification, but other techniques such as MALDI-TOF have also been useful for identifying both the genus and species.

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Etymology The name Aerococcus derives from Ancient Greek ( aḗr), meaning "air", and ( kókkos), meaning "berry". The name was given based on its round shape and that it was first discovered in air samples.

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Species

The genus contains these species:

• A. agrisoli Sun et al., 2023 (from Latin *ager* “field, farm” + *solum* “soil,” “of farmland soil”)
• A. christensenii Collins et al., 1999, named after Danish microbiologist Jens J. Christensen
• A. kribbianus Bai et al., 2024 (honours KRIBB, Korea Research Institute of Bioscience & Biotechnology)
• A. loyolae Choi et al., 2023 (from Latin gen. *loyolae*, “of Loyola,” referring to Loyola University Chicago, site of isolation)
• A. mictus Choi et al., 2023 (Latin gen. *mictus*, “of urinating,” from human urine, first source)
• A. sanguinicola Lawson et al., 2001 (from the Latin for “blood-dweller”)
• Aerococcus suis Vela et al., 2007 (Latin “of a hog”)
• Aerococcus tenax Choi et al., 2023 (Latin masc. adj. *tenax*, “tenacious,” referring to strong biofilm behaviour)
• A. urinae Aguirre & Collins, 1992 (Latin “of urine”)
• A. urinaeequi (Garvie 1988) Felis et al., 2005 (Latin “of horse urine”)
• A. urinaehominis Lawson et al., 2001 (Latin “of human urine”)
• A. vaginalis Tohno et al., 2014 (Latin *vaginalis*, “pertaining to the vagina”)
• A. viridans Williams et al., 1953—type species (Latin “making green”); causative agent of gaffkaemia in .

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See also

• Bacterial taxonomy
• Microbiology

Categories: Bacteria Genera, Lactobacillales, Pathogenic Bacteria

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