Oenococcus oeni

ated}}

FIGURE 1. Typical shape and morphology of Oenococcus oeni (7).

Classification

Domain: Bacteria

Phylum: Firmicutes

Class: Bacilli

Order: Lactobacillales

Family: Leuconostocaceae

Genus: Oenococcus

Species: oeni (1)

NCBI link to find]

Species

NCBI: Taxonomy

Oenococcus oeni

Description and Significance

Oenoccoccus oeni is a gram-positive, nonmotile, chemoorganotrophic lactic acid bacteria that grows in chains of circular to ellipsoidal cells (2). Unlike many bacteria, it thrives in the harsh environment of wine and is considered a beneficial to wine quality and character, rather an agent of damaging value (3). O. oeni is beneficial to wine and the entire field of oenology because of its primary ability to perform malolactic fermentation Describe the appearance, habitat, etc. of the organism, and why you think it is important.

Genome Structure

Any strain of O. onei has about 1800 protein-coding genes Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence?

Cell Structure, Metabolism and Life Cycle

Interesting features of cell structure; how it gains energy; what important molecules it produces.

Ecology and Pathogenesis

Habitat; symbiosis; biogeochemical significance; contributions to environment.
If relevant, how does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.

References

[Sample reference] Takai, K., Sugai, A., Itoh, T., and Horikoshi, K. "Palaeococcus ferrophilus gen. nov., sp. nov., a barophilic, hyperthermophilic archaeon from a deep-sea hydrothermal vent chimney". International Journal of Systematic and Evolutionary Microbiology. 2000. Volume 50. p. 489-500.

(1) NCBI Genome Project [1] (2) [Dicks, L. M. T., Dellaglio, F., Collins, M. D. “Proposal To Reclassify Leuconostoc oenos as Oenococcus oeni [corrig.] gen. nov., comb. nov”. “International Journal of Systematic Bacteriology”. 1995. Volume 445. P. 395-397] (3) Borneman, A. R., McCarthy, J. M., Chambers, P. J., Bartowsky, E. J. “Comparative analysis of the Oenococcus oeni pan genome reveals genetic diversity in industrially-relevant pathways”. (4) Solieri, L., Genova, F., De Palola, M., Giudici, P. “Characterization and technological properties of Oenococcus oeni strains from wine spontaneous malolactic fermentations: a framework for selection of new starter cultures”. “Journal of Applied Microbiology”. 2010. Volume 108. P. 285-298

Author

Page authored by Drew Wehrle student of Prof. Jay Lennon at Indiana University.