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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Weissella koreensis
Etymology: Genus name: named after the German microbiologist Norbert Weiss, who has worked with taxonomy of lactic acid bacteria.
Species epithet: refers to Korea, where the bacterium was first isolated.
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Firmicutes
Class
Bacilli
Order
Bacillales
Family
Leuconostocaceae 
Genus
Weissella
Type Strain: S-5623 = CCUG 47134
Macromorphology (smell):
Micromorphology: Short rods with rounded ends or ovoid. Appear in pairs or short chains.
Gram +/Gram -:G+
Metabolism: Facultatively anaerobic
Catalase/Oxidase:-/?
Other Enzymes: Esculinase -
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
??-?-
L-arabinosecellobioseD-mannitolsalicintrehalose
+-??-
glycerolinulinraffinoseD-sorbitolstarch
??-??
W. koreensis is also fermenting ribose and xylose.
Spec. Char.: Psychrophilic och salt tolerant.
Reservoir: Has been found in kimchi, which is a Korean fermented vegetable product.
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AY035891 S-5623T 1497  

Taxonomy/phylogeny:
Comment:W. koreensis is the dominating bacterial species during fermentation at low temperature. This bacterium also contributes flavour of the product.
Updated:2019-01-17

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New names of taxa within the classification category phylum

During October 2021, an article was published by A. Oren och G.M. Garrity, in which new names are proposed for a number of taxa within the classification category phylum. This has resulted in many discussions in social media about whether it was really necessary to make these changes, which have created confusion among microbiologists and other professionals who come into contact with bacteriology.

Published 2022-09-28. Read more...

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