''Weissella'' is a genus of
gram-positive
In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall.
Gram-positive bacte ...
bacteria
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among ...
placed within the family
Lactobacillaceae
The ''Lactobacillaceae'' are a family of lactic acid bacteria. It is the only family in the lactic acid bacteria which includes homofermentative and heterofermentative organisms; in the ''Lactobacillaceae,'' the pathway used for hexose fermentati ...
, formerly considered species of the ''Leuconostoc paramesenteroides'' group.
The morphology of ''Weissella'' species varies from spherical or lenticular cells to irregular rods. Several strains of ''Weissella cibaria'' and ''Weissella confusa'' have shown probiotic potential. In particular, the cell-free culture supernatant of ''Weissella confusa'' shows a number of beneficial characteristics, such as antibacterial potential and anti-inflammatory efficiency. However, several strains of ''W. confusa'' are opportunistic bacteria. A number of studies have been done on the safety of the bacterial species, indicating their probiotic potential.
The Senate Commission on Food Safety has validated the use of ''W. confusa'' in food.
Species
The genus ''Weissella'' comprises the following species:
* ''
Weissella beninensis
''Weissella kimchii'' is a Gram-positive bacterium from the genus of ''Weissella'' which has been isolated from fermented cassava from Ketou in Benin
Benin ( , ; french: Bénin , ff, Benen), officially the Republic of Benin (french: R ...
''
Padonou ''et al''. 2010
* ''
Weissella bombi''
Praet ''et al''. 2015
* ''
Weissella ceti''
Vela ''et al''. 2011
* ''
Weissella cibaria''
Björkroth ''et al''. 2002
* ''
Weissella coleopterorum''
Hyun ''et al''. 2021
* ''
Weissella confusa
''Weissella'' is a genus of gram-positive bacteria placed within the family Lactobacillaceae, formerly considered species of the ''Leuconostoc paramesenteroides'' group. The morphology of ''Weissella'' species varies from spherical or lenticula ...
''
corrig. (Holzapfel and Kandler 1969) Collins ''et al''. 1994
* ''
Weissella cryptocerci
''Weissella'' is a genus of gram-positive bacteria placed within the family Lactobacillaceae, formerly considered species of the ''Leuconostoc paramesenteroides'' group. The morphology of ''Weissella'' species varies from spherical or lenticula ...
''
Heo ''et al''. 2019
* ''
Weissella diestrammenae''
Oh ''et al''. 2013
* ''
Weissella fabalis''
Snauwaert ''et al''. 2013
* ''
Weissella fabaria''
De Bruyne ''et al''. 2010
* ''
Weissella ghanensis''
De Bruyne ''et al''. 2008
* ''
Weissella halotolerans''
(Kandler ''et al''. 1983) Collins ''et al''. 1994
* ''
Weissella hellenica''
Collins ''et al''. 1994
* ''
Weissella kandleri
''Weissella'' is a genus of gram-positive bacteria placed within the family Lactobacillaceae, formerly considered species of the ''Leuconostoc paramesenteroides'' group. The morphology of ''Weissella'' species varies from spherical or lenticula ...
''
(Holzapfel and van Wyk 1983) Collins ''et al''. 1994
* ''
Weissella koreensis''
Lee ''et al''. 2002
* ''
Weissella minor''
(Kandler ''et al''. 1983) Collins ''et al''. 1994
* ''
Weissella muntiaci''
Lin ''et al''. 2020
* ''
Weissella oryzae
''Weissella oryzae'' is a Gram-positive bacterium from the genus of '' Weissella'' which has been isolated from fermented Japanese rice from Tochigi Prefecture
is a prefecture of Japan located in the Kantō region of Honshu. Tochigi ...
''
Tohno ''et al''. 2013
* ''
Weissella paramesenteroides''
(Garvie 1967) Collins ''et al''. 1994
* ''
Weissella sagaensis
''Weissella'' is a genus of gram-positive bacterium, bacteria placed within the family Lactobacillaceae, formerly considered species of the ''Leuconostoc paramesenteroides'' group. The morphology of ''Weissella'' species varies from spherical o ...
''
Li ''et al''. 2020
* ''
Weissella soli''
Magnusson ''et al''. 2002
* ''
Weissella thailandensis''
Tanasupawat ''et al''. 2000
* ''
Weissella uvarum''
Nisiotou ''et al''. 2014
* ''
Weissella viridescens
''Weissella'' is a genus of gram-positive bacteria placed within the family Lactobacillaceae, formerly considered species of the ''Leuconostoc paramesenteroides'' group. The morphology of ''Weissella'' species varies from spherical or lenticula ...
''
(Niven and Evans 1957) Collins ''et al''. 1994
Phylogeny
The currently accepted taxonomy is based on the
List of Prokaryotic names with Standing in Nomenclature
List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the naming and taxonomy of prokaryotes, following the taxonomy requirements and rulings of the International Code of Nomenclature ...
and the phylogeny is based on whole-genome sequences.
References
External links
''Weissella confusa'' Infection in Primate (''Cercopithecus mona'')*
Weissella,
Bacteria genera
{{lactobacilli-stub