From Wikipedia, the free encyclopedia
Jump to: navigation, search
WikiProject Microbiology (Rated Start-class, High-importance)
WikiProject icon This article is within the scope of WikiProject Microbiology, a collaborative effort to improve the coverage of Microbiology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
Start-Class article Start  This article has been rated as Start-Class on the quality scale.
 High  This article has been rated as High-importance on the importance scale.


I believe there is a minor contradiction in the scientific classification of Firmicutes. The classification box on the rights lists Firmicutes as a division under the Kingdom bacteria. reserves Division for only members of the Plant Kingdom.

I believe that Firmicutes should be considered a Phylum on par with the Proteobacteria even though Phylum seems to be reserved for the Animal Kingdom. I have considered division to be used exclusively for plants.


Moreover, Firmicutes figures as a phylum in the section on Bacillus subtilis! Googling for Firmicutes reveals more references to it as a phylum than as a division and googling for "Firmicutes phylum" beats googling for "Firmicutes division" 2220 : 46.

Top.Squark 10:58, 24 August 2006 (UTC)

a new type of Firmicutes?[edit]

There have been a few articles [1] [2] discussing a species related to Firmicutes that uses radiated water and not sunlight as its food source. It seems like this maybe ought to be added to this article, but I'm not really sure how to incorporate it. TerraFrost 15:47, 22 October 2006 (UTC)

Nature magazine Video[edit]

I intend to add this Jeffery Gordon reference.

  • Jeffery Gordon et al, [3] Nature video, 2006. Human Gut Microbes

I got a request from Nearly Headless Nick 13:11, 20 January 2007 (UTC), to discuss it here before trying again to add it to the page.


This article lists Mycoplasma (Mollicutes) as part of the Firmicutes, while the Mollicutes and Tenericutes articles, and also other sources like the ribosomal database project lists them as Tenericutes. Anyone know what is correct, or can both be correct? (talk) 11:55, 4 November 2008 (UTC)


I've been trying to find out how "Firmicutes" is correctly pronounced. Most of the sources I have looked at seem unreliable. Is it pronounced firm-eh-cutes or firm-eh-cute-eez? —Preceding unsigned comment added by (talk) 16:13, 7 January 2011 (UTC)

I pronounce it fuhrm'-uh-kyootz' (which I'm guessing is homonymous with your former guess). I'm from Midwest America, though, where "fiddle" and "little" rhyme, so my regional pronunciation of this word may be drastically different from wherever you're from. Bob the Wikipedian (talkcontribs) 21:40, 7 January 2011 (UTC)

I'm wondering this too. When someone finds it out, it should be added to the article. (talk) 01:28, 19 December 2011 (UTC)

I'd tend to lean toward fur´mikūts but have heard a smattering of different versions. Definite sources to confirm this sort of thing are rare if not nonexistent. §everal⇒|Times 21:12, 24 January 2012 (UTC)

I found this for the pronunciation and I believe its a good source. — (talkcontribs) 15:35, 27 February 2012 (UTC) --Unpw (talk) 15:43, 27 February 2012 (UTC)

To the best of my knowledge: The howjsay pronunciation is the one to use: fir MIK kyoo teez. Since Linnaeus began the whole thing with Latin, we still stick to latin pronunciations and use latinized versions of non-latin words when naming new species, e.g. Strigiphilus garylarsoni. Our English habits make us want to leave out the "teez." However, unlike English, Latin was not a bastardized language. It was pure, and every letter counted. (Why bother with silent Es or letters that don't actually have a sound of their own? Yeah, that's right. I'm talking about you, C.) So, the best rule when approaching a new scientific name is to pronounce each and every letter. Another example: the bacterial phylum Bacteroidetes - bak teer roy DAY teez or bak teer ROY de teez. I believe the first is the most proper, but the rules for stressing syllables in Latin are somewhat complicated and conditional, and I don't know them all. Also, check out I would argue with some of his pronunciations, but only on minor points. KugelaP (talk) 19:48, 25 September 2013 (UTC)

With regards to Bacteroidetes, personally I would say bak-ter-oh-ID-it-eez ... I absolutely agree that Firmicutes should be pronounced fir-MIK-oo-teez. It's more of a problem when you use it not as the name of the Phylum, but as a plural to mean "members of the Firmicutes." For example, as in "Bacillus and other Firmicutes have a thick cell wall." Technically, maybe it should be Firmicuteses, but that sounds really odd. — Preceding unsigned comment added by (talk) 19:36, 30 September 2013 (UTC)

Role in obesity[edit]

Firmicutes are suspected to take part in positive feedback of gaining weight Shoshie8 (talk) 06:18, 13 September 2012 (UTC)

Re: GC content (vs Actinobacteria)[edit]

The Firmicutes page and Actinobacteria page seem to be contradiction regarding GC content.

From the Firmicutes page: "Scientists once classified the Firmicutes to include all Gram-positive bacteria, but have recently defined them to be of a core group of related forms called the low-G+C group, in contrast to the Actinobacteria. "

From the Actinobacteria page: "The G+C content of freshwater Actinobacteria can be as low as 42%. In view of this, continued use of the epithet high G+C Gram positive organisms to refer to Actinobacteria must now be discontinued."

I'm assuming the content on the Actinobacteria page is more recent/correct, but I don't know enough about the subject to make a determination. (izaakm)

Mollicutes - is this a contradiction?[edit]

According to on firmicutes: "The group is typically divided into the Clostridia, which are anaerobic, the Bacilli, which are obligate or facultative aerobes, and the Mollicutes."

However, according to "Tenericutes (tener cutis: soft skin) is a phylum of bacteria that contains the Class Mollicutes."

Surely both can't be correct?

-- (talk) 16:12, 15 April 2014 (UTC)

Assessment comment[edit]

The comment(s) below were originally left at Talk:Firmicutes/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.

Last edited at 18:23, 18 April 2008 (UTC). Substituted at 15:10, 29 April 2016 (UTC)

External links modified[edit]

Hello fellow Wikipedians,

I have just modified 2 external links on Firmicutes. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{Sourcecheck}}).

You may set the |checked=, on this template, to true or failed to let other editors know you reviewed the change. If you find any errors, please use the tools below to fix them or call an editor by setting |needhelp= to your help request.

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

If you are unable to use these tools, you may set |needhelp=<your help request> on this template to request help from an experienced user. Please include details about your problem, to help other editors.

Cheers.—InternetArchiveBot (Report bug) 06:43, 21 July 2016 (UTC)

s. s.[edit]

What is "s. s."?
Consider defining at SS_(disambiguation)#Biology_and_medicine.
—DIV ( (talk) 04:14, 15 November 2016 (UTC))