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Scientific classification
Kingdom: Bacteria
Division: Firmicutes
Class: Bacilli
Order: Lactobacillales
Family: Leuconostocaceae
Genus: Leuconostoc
van Tieghem 1878

L. carnosum
L. citreum
L. durionis
L. fallax
L. ficulneum
L. fructosum
L. garlicum
L. gasicomitatum
L. gelidum
L. inhae
L. kimchii
L. lactis
L. mesenteroides
L. pseudoficulneum
L. pseudomesenteroides

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2]


Leuconostoc[1] is a genus of Gram-positive bacteria, placed within the family of Leuconostocaceae. They are generally ovoid cocci often forming chains. Leuconostoc sp. are intrinsically resistant to vancomycin and are catalase-negative (which distinguishes them from staphylococci). All species within this genus are heterofermentative and are able to produce dextran from sucrose. They are generally slime-forming.

Blamed for causing the 'stink' when creating a sourdough starter. Some species are also capable of causing human infection.[2] Because they are an uncommon cause of disease in humans, standard commercial identification kits are often unable to identify the organism[3].


Antimicrobial regimen

  • Leuconostoc [4]


  1. Björkroth, J., and W. Holzapfel. 2006. Genera Leuconostoc, Oenococcus and Weissella, p.267 -319. In M. Dworkin (ed.), The prokaryotes: a handbook on the biology of bacteria: Firmicutes, Cyanobacteria, vol. 4, 3rd ed. Springer-Verlag, New York, NY. [1]
  2. Vagiakou-Voudris E, Mylona-Petropoulou D, Kalogeropoulou E, Chantzis A, Chini S, Tsiodra P, Malamou-Lada E (2002). "Scand J Infect Dis". 34 (10): 766&ndash, 7. PMID 12477331.
  3. Kulwichit W, Nilgate S, Chatsuwan T; et al. (2007). "Accuracies of Leuconostoc phenotypic identification: a comparison of API systems and conventional phenotypic assays". BMC Infectious Diseases. 7: 69. doi:10.1186/1471-2334-7-69.
  4. Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.

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