Hanseniaspora

Hanseniaspora is a genus of yeasts.[1] The name Kloeckera is applied to its anamorph form. They are typically apiculate in shape and often found in grape musts pre-fermentation.

Hanseniaspora
Scientific classification
Kingdom:
Fungi
Phylum:
Ascomycota
Subphylum:
Saccharomycotina
Class:
Saccharomycetes
Order:
Saccharomycetales
Family:
Saccharomycetaceae
Genus:
Hanseniaspora

Berkh., 1923
Species

Hanseniaspora guilliermondii Pijper
Hanseniaspora occidentalis M. T. Smith
Hanseniaspora osmophila (Niehaus) Phaff et al.
Hanseniaspora uvarum (Niehaus) Shehata et al.
Hanseniaspora valbyensis Klocker
Hanseniasporu vineae van der Walt et Tscheuschner
Kloeckera lindneri (Klocker) Janke

The genus name of Hanseniaspora is in honour of Emil Christian Hansen (1842–1909), who was a Danish mycologist and fermentation physiologist.[2] It was circumscribed by H. Zikes in Centralbl. Bakteriol. vol.2. Abth. 30 on page 148 in 1911.

The genus is notable for its loss of many highly conserved genes responsible for cell cycle regulation and genome 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.[3]

See also

References
  1. "Hanseniaspora Zikes, 1911". www.gbif.org. Retrieved 26 March 2022.
  2. Burkhardt, Lotte (2022). Eine Enzyklopädie zu eponymischen Pflanzennamen [Encyclopedia of eponymic plant names] (pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2022. ISBN 978-3-946292-41-8. Retrieved January 27, 2022.
  3. Steenwyk, Jacob L.; Opulente, Dana A.; Kominek, Jacek; Shen, Xing-Xing; Zhou, Xiaofan; Labella, Abigail L.; Bradley, Noah P.; Eichman, Brandt F.; Čadež, Neža; Libkind, Diego; DeVirgilio, Jeremy; Hulfachor, Amanda Beth; Kurtzman, Cletus P.; Hittinger, Chris Todd; Rokas, Antonis (21 May 2019). "Extensive loss of cell-cycle and DNA repair genes in an ancient lineage of bipolar budding yeasts". PLOS Biology. 17 (5): e3000255. doi:10.1371/journal.pbio.3000255.


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