Talk:Facultative anaerobic organism

This article was the subject of a Wiki Education Foundation-supported course assignment, between 5 January 2022 and 4 April 2022. Further details are available on the course page. Student editor(s): Simrankmann (article contribs). Peer reviewers: Inquiringmindhive.

Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 24 August 2020 and 7 December 2020. Further details are available on the course page. Student editor(s): Bguti02. Peer reviewers: Seashell5300.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 21:07, 16 January 2022 (UTC)

Definition of facultative anaerobe

I think that the more accurate description of an facultative anaerobe would be: A bacteria that is not harmed by oxygen present and can survive without it. In the case of oral streptococci, they are considered facultative anaerobes that do not use oxygen as a final oxidizing agent, as in respiration, to obtain energy from carbohydrates. They use fermentation whether oxygen is available or not. Franky 10:26 4 December 2008

ISBN info

The ISBN on the 2nd reference is 9780470233962 — Preceding unsigned comment added by 86.52.184.193 (talk) 13:50, 27 July 2011 (UTC)

Thioglycollate broth figure

Just a small point on the figure depicting the mode of verifying a bacteria's oxygen requirements- that isn't quite how it works in liquid culture is it? Even if you use a medium like thioglycollate that actually excludes oxygen from diffusing throughout the media, the different densities in cells can't really tell you how they grow best based on where they are as the ability to form visible floating colonies vs. the tendency to precipitate isn't a feature that depends upon oxygen requirements. Would it be wrong to say that this test is usually carried out in solid media in tubes? With an oxygen alerting dye such as methylene blue embedded? The culture growth patterns can then be assessed and position in relation to the methylene blue will indicate oxygen requirements.

At any rate, I think the caption is sufficient in illustrating the point the article is meant to explain, and the illustrations themselves seem to indicate liquid culture so maybe there is a liquid media I am not aware of that would allow for this test.

Serenari13 (talk) 22:04, 7 October 2013 (UTC)

Pasteur effect

Hi, I'm provisionally deleting the following section as it appears to contain inaccuracies:

"The concentrations of oxygen and fermentable material in the environment influence the organism's use of aerobic respiration vs. fermentation to derive energy. In brewer's yeast, the Pasteur shift is the observed cessation of oxygen consumption when fermentable sugar is supplied. In a growing culture, the energy "economics" disfavors respiration due to the "overhead cost" of producing the apparatus, as long as sufficient fermentable substrate is available, even though the energy output per mole of fermented material is far less than from respiration's complete oxidation of the same substrate. However, the rate of production of ATP can be up to 100 times faster than that of oxidative phosphorylation. Therefore, tissues and organisms that require fast consumption of ATP preferentially use anaerobic glycolysis."

It is my understanding, for example, that 'Pasteur shift' refers to the observation that aeration increases yeast growth but decreases yeast fermentation. Also, the term 'anaerobic glycolysis' used in the final sentence doesn't make sense. Glycolysis doesn't require oxygen. There's no such thing as 'aerobic glycolysis', is there? What do other people think? Your input would be much appreciated.

Thanks, Lialono (talk) 05:34, 21 February 2014 (UTC)

References

Title

The title of this article should be "Facultative Aerobic Organism," as "facultative anaerobe" is a misnomer. Any organism that has the ability to use oxygen is an aerobe. Anaerobes can only be described as "obligate" or "aerotolerant," not "facultative."

I have retitled the article accordingly. If anyone objects, it can be moved back and then a discussion can be started. Deli nk (talk) 17:49, 24 July 2018 (UTC)

I object. -- Paleorthid (talk) 06:26, 20 January 2019 (UTC)

I object, too. I think that "facultative anaerobe" is actually more appropriate, not only to be consistent with the article's content, but also because "facultative anaerobe" is most frequently used in the scientific literature as can be observed after searching for both terms in peer-reviewed journals: for instance, according to Scopus database, the term “Facultative anaerobe” appeared in 3337 documents while “Facultative aerobe“ appeared in only 165 papers. --Eepavan (talk) 16:56, 20 January 2019 (UTC)

References

Title

Moved from Talk:Facultative aerobic organism

The title of this article should be "Facultative Aerobic Organism," as "facultative anaerobe" is a misnomer. Any organism that has the ability to use oxygen is an aerobe. Anaerobes can only be described as "obligate" or "aerotolerant," not "facultative."

I have retitled the article accordingly. If anyone objects, it can be moved back and then a discussion can be started. Deli nk (talk) 17:49, 24 July 2018 (UTC)

I object. -- Paleorthid (talk) 06:26, 20 January 2019 (UTC)

I object, too. I think that "facultative anaerobe" is actually more appropriate, not only to be consistent with the article's content, but also because "facultative anaerobe" is most frequently used in the scientific literature as can be observed after searching for both terms in peer-reviewed journals: for instance, according to Scopus database, the term “Facultative anaerobe” appeared in 3337 documents while “Facultative aerobe“ appeared in only 165 papers. --Eepavan (talk) 16:56, 20 January 2019 (UTC)

Deli nk I have moved the talk page to this location, and also moved this discussion thread to here,--DBigXrayᗙ 22:27, 20 January 2019 (UTC)

Article's title

Hi, I think that entitling “Facultative aerobic organism” an article on “Facultative anaerobic organism” is a little misleading. An expert may know that the border between facultative anaerobic and facultative aerobic is not well defined (is it like a half empty or half full glass?), but anaerobic and aerobic have opposite meaning... I think that, at least for consistency with the article’s content, the title should be “Facultative anaerobic organism”.--Eepavan (talk) 09:35, 19 January 2019 (UTC)

At the time the move to facultative aerobic was made, the editor offered on the redirect talk page to restore the previous name, so we can have an opportunity to discuss it on the article talk page. I have objected posted there. -- Paleorthid (talk) 06:50, 20 January 2019 (UTC). Copyedited -- 07:04, 20 January 2019 (UTC)

I suggest to use the term “Facultative anaerobic organism” for the following reasons: firstly, to be consistent with the contents already written. Secondly, because of its usage in the scientific literature: after an in-depth search for both terms in peer-reviewed journals, according to Scopus database, the term “Facultative anaerobic” appeared in 3337 papers while “Facultative aerobic“ appeared in only 165 papers. --Eepavan (talk) 16:45, 20 January 2019 (UTC)

It seems clear the article needs to move back to Facultative anaerobic organism. This was the name before it was changed in July from a term in common use to a rarely used term— facultative aerobic organism. The edit summary for the move to aerobic says see the talk page. The source posted at the talk page in support of changing anaerobic to aerobic is confused and inconclusive at best and, as an informal discussion, doesn't qualify as a reliable resource on which to hang encyclopedic content, much less an article title. Reviewing content in the 346 articles that link to this article, reviewing the existing sources for the article – these all support restoration of Facultative anaerobic organism. -- Paleorthid (talk) 20:47, 20 January 2019 (UTC)

Imprecise caption

Anaerobes on image. On the image, the caption for 2.Anaerobes is imprecise. It should state "Obligate Anaerobes" instead of "Anaerobes" because it implies, given the text to the caption that Anaerobes are poisoned by oxygen which may be the case for Obligate Anaerobes but is not the case for Facultative Anaerobes. — Preceding unsigned comment added by 209.93.146.3 (talk) 14:12, 20 November 2022 (UTC)

Wiki Education assignment: Biogeochemical Cycles

This article was the subject of a Wiki Education Foundation-supported course assignment, between 11 January 2023 and 21 April 2023. Further details are available on the course page. Student editor(s): Sdenviogeo (article contribs). Peer reviewers: Aminatangom.

— Assignment last updated by MethanoJen (talk) 20:00, 13 January 2023 (UTC)