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Volume 24, Number 9—September 2018
Etymologia

Etymologia: Granulicatella

Ronnie HenryComments to Author 

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Granulicatella [granʹyoo-lik-ə-telʺə]

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Thumbnail of Blood agar plates with (left) and without (right) pyridoxal supplement from a study of neonatal Granulicatella elegans bacteremia, London, UK. Image from Neonatal Granulicatella elegans Bacteremia, London, UK; Emerging Infectious Diseases Vol. 19, no. 7, July 2013.

Figure. Blood agar plates with (left) and without (right) pyridoxal supplement from a study of neonatal Granulicatella elegans bacteremia, London, UK. Image from Neonatal Granulicatella elegans Bacteremia, London, UK; Emerging Infectious Diseases...

In 1961, Frenkel and Hirsch described strains of streptococci isolated from cases of bacterial endocarditis that grew only in the presence of other bacteria, around which they formed satellite colonies, or in media enriched with sulfhydryl compounds, such as cysteine. These nutritionally variant streptococci were eventually assigned the species Streptococcus defectivus (Latin for “deficient”) and S. adjacens (because it grows adjacent to other bacteria) (Figure).

On the basis of later research, these were placed in a new genus Abiotrophia (Greek a, “un-,” + bios, “life,” + trophe, “nutrition”) as A. adiacens and A. defectiva. In 1998 and 1999, 2 additional species of Abiotrophia were described, A. elegans (Latin, “fastidious,” referring to fastidious growth requirements) and A. balaenopterae (isolated from a minke whale [Balaenoptera acutorostrata]). In 2000, these new species, along with A. adiacens, were reclassified in the new genus Granulicatella (Latin granulum, “small grain,” + catella, “small chain”).

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References

  1. Bouvet  A, Grimont  F, Grimont  PA. Streptococcus defectivus sp. nov. and Streptococcus adjacens sp. nov., nutritionally variant streptococci from human clinical specimens. Int J Syst Bacteriol. 1989;39:2904. DOI
  2. Collins  MD, Lawson  PA. The genus Abiotrophia (Kawamura et al.) is not monophyletic: proposal of Granulicatella gen. nov., Granulicatella adiacens comb. nov., Granulicatella elegans comb. nov. and Granulicatella balaenopterae comb. nov. Int J Syst Evol Microbiol. 2000;50:3659. DOIPubMed
  3. Frenkel  A, Hirsch  W. Spontaneous development of L forms of streptococci requiring secretions of other bacteria or sulphydryl compounds for normal growth. Nature. 1961;191:72830. DOIPubMed
  4. Kawamura  Y, Hou  XG, Sultana  F, Liu  S, Yamamoto  H, Ezaki  T. Transfer of Streptococcus adjacens and Streptococcus defectivus to Abiotrophia gen. nov. as Abiotrophia adiacens comb. nov. and Abiotrophia defectiva comb. nov., respectively. Int J Syst Bacteriol. 1995;45:798803. DOIPubMed
  5. Lawson  PA, Foster  G, Falsen  E, Sjödén  B, Collins  MD. Abiotrophia balaenopterae sp. nov., isolated from the minke whale (Balaenoptera acutorostrata). Int J Syst Bacteriol. 1999;49:5036. DOIPubMed
  6. Roggenkamp  A, Abele-Horn  M, Trebesius  KH, Tretter  U, Autenrieth  IB, Heesemann  J. Abiotrophia elegans sp. nov., a possible pathogen in patients with culture-negative endocarditis. J Clin Microbiol. 1998;36:1004.https://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9431929&dopt=Abstract

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Cite This Article

DOI: 10.3201/eid2409.et2409

Original Publication Date: July 31, 2018

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Table of Contents – Volume 24, Number 9—September 2018

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Ronnie Henry, Centers for Disease Control and Prevention, 1600 Clifton Rd NE, Mailstop E03, Atlanta, GA 30329-4027, USA

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Page created: August 23, 2018
Page updated: August 23, 2018
Page reviewed: August 23, 2018
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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