Talk:Saccharomyces pastorianus

Merge talk page from Saccharomyces uvarum

This article is debateable. I would suggest the stronger evidence is that lager yeast is a hybrid of Saccharomyces cerevisiae and Saccharomyces bayanus. Furthermore, in brewing science the strain is typically reffered to as Saccharomyces pastorianus.

I would rather not make any changes straight away, as they are more than minor amendments. Any thoughts?

Yes, I agree whole heartedly. Indeed I clicked on discussion to make this point. There is a saccharomyces pastorianus article and searches for Lager Yeast should be directed there.

Comments on French wikipedia

The authors on the French wikipedia suggest that Saccharomyces uvarum and Saccharomcyes carlsbergensis are synonyms. This has prompted the following response on the article's talk page: ◄§ĉҺɑʀκs► 05:25, 22 December 2006 (UTC)

Sir, Madame There is a confusion in your Encyclopedia. Yeast taxonomists use the yeast names admitted by authors in the books: The Yeasts, A taxonomic study, Editions: 1952 by J. Lodder and N.J.W. Kreger-van Rij; 1970 by J. Lodder ; 1984 by N.J.W. Kreger-van Rij; 1998 by C.P. Kurtzman & J.W. Fell. In the first two editions Saccharomyces uvarum was a proper species described Beijerinck M.W. in 1898 with he type strain CBS 395 isolated from black currant juice (Ribes nigrum). In the 1984 edition S. uvarum was regarded as synonym with S. bayanus, a species described by Saccardo P.A. in 1895, the type culture or type strain is CBS 380 isolated from turbid beer. When two species were recognized synomyms the name retained was the most ancient so S. bayanus described earlier was maintained as taxon name. Successive works using molecular techniques demonstrated that S. uvarum is a "pure" widesprd species while S. bayanus carrying a "mixed" genome is a partial hybrid. We thus reinstated S. uvarum as a distinct species (Nguyen & Gaillardin, 2005). S. uvarum is not a synonym of S. carlsbergensis, a bottom brewer's yeast described by Hansen E.C. in 1908, the type strain CBS 1513 was isolated from bottom yeast at the Carlsberg brewery in Copenhagen. Another strain isolated at the same brewey was named S. monacensis. Both S. carlsbergensis and S. monacensis are now synonyms of S. pastorianus (Reess, 1870, see Vaughan-Mertini& Kurtzman, 1985, The Yeasts Edt.1998). Dr NGUYEN HUU VANG

I have made some changes to this article and Saccharomyces pastorianus based on this and other infomation I have researched. ◄§ĉҺɑʀκs► 05:25, 22 December 2006 (UTC)

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Eubayanus hypothesis

The first sentence of Genomics was apparently changed to include the recently proposed S. eubayanus instead of bayanus, but the rest of the section still refers to bayanus only, and references such as "the two genomes" have become unclear because of the edit. Maybe it would be better for now to revert the first sentence to refer only to bayanus, and add a sentence about eubayanus at the end of the section.--88.73.21.119 (talk) 23:22, 23 August 2011 (UTC)

It was I who made the change. I should have started this discussion, my apologies. It is only one paper as yet, so I agree that it is not time for a full revision. However, I feel (I am happy to go with whatever consensus emerges though) that it is significant to be worthy of an early mention. It is almost akin to the warning in articles that the event is on-going. I fear that it would be lost, were it at the bottom. Steve Davy (I would log-in but the procedure is being a pain) Apparently, Eubayanus is "more commonly known as Danjansenanus ". Is it? That is news to me. — Preceding unsigned comment added by 66.31.202.190 (talk) 03:14, 12 September 2011 (UTC)

History

I think there is potential for expanding with some history. A basic rundown can be found at Carlsbergs history page about Louis Pasteur and Emil Christian Hansen here, but I assume it would need to be corroborated with 3rd party sources. The German Wikipedia page (autotranslated) contains a history, section which can be used as template.

Also, i can't believe it doesn't already say that pastorianus is a reference to Louis Pasteur!? (so I'm adding that now). Katana (talk) 13:01, 30 March 2013 (UTC)

Also worth pointing out is that the German article has the focus of it being called carlsbergensis, and this page indicates that the name was somehow "changed" to pastorianus acrosse the board at some point. Katana (talk) 13:15, 30 March 2013 (UTC)