Talk:Undulipodium

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Biophysics (inactive)

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Intracellular NOT extracellular

Eukaryotic flagella and cilia are intracellular organelles. They are projections of the cell (cell membrane). --kupirijo (talk) 10:50, 6 November 2020 (UTC)[reply]

October 2009

flagella are also characteristic of many prokaryotes —Preceding unsigned comment added by 64.131.174.181 (talk) 20:47, 30 October 2009 (UTC)[reply]

Merge with axoneme?

This article is very similar to axoneme. Perhaps the two should be merged.--Chibibrain (talk) 02:38, 20 November 2009 (UTC)[reply]

Yes, similar, but according to the lead sentence in the Axoneme article ("Numerous eukaryotic cells carry whip-like appendages (cilia or eukaryotic flagella) whose inner core consists of a cytoskeletal structure called the axoneme."), not identical. As I read that sentence, the axoneme is a part of an undulipodia. As I understand it, "undulipodia" is just a general name for the two structurally identical cellular organelles cilia and flagella; however, as noted in both articles and in this one, there appears not to be a shred of a source for this Wiki-claim—there is no verifiable, reliable secondary source citation for the claim in any Wikipedia article I have seen.

Still, a merge proposal could be made by someone. Perhaps axoneme would make a good section of the undulipodium article, if we were ever to have a good source for what an undulipodium is. Cheers. N2e (talk) 01:16, 19 March 2010 (UTC)[reply]

And here is another paragraph, directly from a source, to clarify the difference: "Inside cilia and flagella is a microtubule-based cytoskeleton called the axoneme. The axoneme of primary cilia typically has a ring of nine outer microtubule doublets (called a 9+0 axoneme), and the axoneme of a motile cilium has two central microtubule doublets in addition to the nine outer doublets (called a 9+2 axoneme). The axonemal cytoskeleton acts as a scaffolding for various protein complexes and provides binding sites for molecular motor proteins such as kinesin II, that help carry proteins up and down the microtubules." That is from: Gardiner, Mary Beth (2005). "The Importance of Being Cilia". HHMI Bulletin. 18 (2). Howard Hughes Medical Institute. {{cite journal}}: Unknown parameter |month= ignored (help) N2e (talk) 18:40, 6 April 2010 (UTC)[reply]

Sources are missing

This article is, as of March 2010, entirely unsourced, although it has been fact-tagged for sources since July 2008. I will plan to begin to remove a lot of the unsourced material unless some sources are found.N2e (talk) 23:49, 18 March 2010 (UTC)[reply]

One potential source may be "<ref name=Haimo_JCB198112> {{cite journal | author = Haimo LT, Rosenbaum JL | title = Cilia, flagella, and microtubules | journal = J. Cell Biol. | volume = 91 | issue = 3 Pt 2 | pages = 125s–130s | year = 1981 | month = December | pmid = 6459327 | doi = 10.1083/jcb.91.3.125s | url = | pmc = 2112827 }}</ref>", a source used in both the cilia and flagella articles to source the assertion that "Eukaryotic cilia are structurally identical to eukaryotic flagella, although distinctions are sometimes made according to function and/or length." Unfortunately, the article is behind a paywall so is not accessible to ordinary web users. Does anyone have a copy, or might be able to obtain a copy from a research library? N2e (talk) 23:49, 18 March 2010 (UTC)[reply]

The most consensus is the use of cilium and flagellum for all purposes.

In "Usage", does the sentence "The most consensus is the use of cilium and flagellum for all purposes." have any salvageable meaning at all? If so could some kind person salvage it please? Thanks and best wishes DBaK (talk) 20:28, 9 July 2013 (UTC)[reply]

Confused

1st, if I'm not wrong, bacterial organelles of this kind have a rotating elememt, they like ATP sythase. Eukarotic organelles of this kind do not rotate. Archaeal organelles of this kind are more like bacterial ones, driven by ATP. So the eukarytoc organelles like the prokaryotic ones in function not by design. Afaik they are analogous, not homologous then.

2nd, "as primary cilia do not have the rotary movement mechanism found in motile cilia." - motile cilia Are organelles of eukaryota (as we see following the link). But I thought only the prokarotic organelle are rotating?

Please check! --Ernsts (talk) 19:39, 19 August 2017 (UTC)[reply]