''Hanseniaspora'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of yeasts. The name ''Kloeckera'' is applied to its

anamorph In mycology, the terms teleomorph, anamorph, and holomorph apply to portions of the life cycles of fungi in the phyla Ascomycota and Basidiomycota: *Teleomorph: the sexual reproductive stage (morph), typically a fruiting body. *Anamorph: an ase ...

form. They are typically apiculate (lemon-shaped) in shape and often found in grape musts pre-fermentation. The genus name ''Hanseniaspora'' honours

Emil Christian Hansen Emil Christian Hansen (8 May 1842 – 27 August 1909) was a Danish mycologist and fermentation physiologist. Born in Ribe, he financed his education by writing novels. He was awarded a gold medal in 1876 for an essay on fungi, titled ''De dans ...

(1842–1909), who was a Danish mycologist and fermentation physiologist. It was initially

circumscribed In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius. Not every polyg ...

by H. Zikes in 1911, but not validly published. Albert Klöcker published the name validly the following year. The genus is notable for its loss of many highly conserved genes responsible for

cell cycle The cell cycle, or cell-division cycle, is the series of events that take place in a cell that cause it to divide into two daughter cells. These events include the duplication of its DNA (DNA replication) and some of its organelles, and subs ...

regulation and

genome In the fields of molecular biology and genetics, a genome is all the genetic information of an organism. It consists of nucleotide sequences of DNA (or RNA in RNA viruses). The nuclear genome includes protein-coding genes and non-coding ge ...

integrity, resulting in increased evolution rates and genome size reduction. It can be divided into two lineages: a faster-evolving lineage (FEL) diversifying about 87 mya, and a slower one diversifying about 52 mya. The FEL has more of such gene losses, resulting in more dramatic changes in the genome and inactivation of multiple metabolic pathways. However, it has managed to diversity and thrive, showing that life can function without such regulation.

Species

*'' Hanseniaspora clermontiae'' *'' Hanseniaspora gamundiae'' *''

Hanseniaspora guilliermondii ''Hanseniaspora guilliermondii'' is a species of yeast in the family Saccharomycetaceae. In its anamorph form, it is called ''Kloeckera apis''. Taxonomy The initial sample of the species was isolated by South African pathologist Adrianus Pij ...

'' *'' Hanseniaspora lachancei'' *'' Hanseniaspora meyeri'' *''

Hanseniaspora occidentalis ''Hanseniaspora occidentalis'' is a species of yeast in the family Saccharomycetaceae. In its anamorph form, it was called ''Kloeckera javanica''. It has been isolated in the wild from soil samples and vineyards. Samples of a variant have be ...

'' *'' Hanseniaspora opuntiae'' *''

Hanseniaspora osmophila ''Hanseniaspora osmophila'' is a species of yeast in the family Saccharomycetaceae. It is found in soil and among the bark, leaves, and fruits of plants, as well as fermented foods and beverages made from fruit. Taxonomy Albert Klöcker origin ...

'' *'' Hanseniaspora pseudoguilliermondii'' *'' Hanseniaspora uvarum'' *'' Hanseniaspora valbyensis'' *''

Hanseniaspora vineae ''Hanseniaspora'' is a genus of yeasts. The name ''Kloeckera'' is applied to its anamorph form. They are typically apiculate (lemon-shaped) in shape and often found in grape musts pre-fermentation. The genus name ''Hanseniaspora'' honours Emil ...

References

Saccharomycetes Ascomycota genera Yeasts Yeasts used in brewing Taxa described in 1912 {{yeast-stub

Species

See also

References