Wikipedia:Featured picture candidates/Flagellum base diagram

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[edit] Flagellum base diagram

Original - A flagellum (plural: flagella) is a long, slender projection from the cell body, whose function is to propel an organism. The depicted type of flagellum is found in bacteria such as E. coli and Salmonella, and rotates like a propeller when the bacterium swims.

Reason

i have recently noticed that when my images are featured they become more viewers and this increases the chances for them to be translated and to move into other wikipedia proyects. i want to try to feature my main diagrams so that they can get improved and or better distributed... plus i think it is of a great enciclopedic value...

Articles this image appears in

Flagellum

Creator

LadyofHats

• Support as nominator LadyofHats (talk) 04:47, 3 March 2008 (UTC)
• Support Top notch diagram. Only thing missing is the disclaimer not to use it under mousetrap --Mike Spenard (talk) 06:05, 3 March 2008 (UTC)
• Minor point Does not say what type of flagellum it is, and this editor is far too sleep deprievd to be trying to deal with this =) Sheesh, I thought "Well, clearly there's the Type III secretory system in there, the one used by plant pathogens and Yersina pestis so it's Eukaryotic."... god, I'm stupid before my coffee. It's Bacterial, of course. Shoemaker's Holiday (talk) 07:22, 3 March 2008 (UTC)
  • Done it aded the label in the description page -LadyofHats (talk) 10:28, 3 March 2008 (UTC)
    • Then Support! Shoemaker's Holiday (talk) 11:31, 3 March 2008 (UTC)
• Conditional Support - I will support strongly if the text background is made transparent - at the moment, the two columns of text are on white boxes which seem randomly distributed and don't even touch the edges of the image. —Vanderdecken∴ ∫ξφ 12:14, 3 March 2008 (UTC)
  • I can not take the white squares away since they are there so that text can be readed ( when removing them there are still colors bellow that would make reading the text confusing). would it help you if i extend them so that they go out up to the borders?. i can not make them both have the same width becouse it would be useless empty space on the right.so what do you sugest?.-LadyofHats (talk) 17:08, 3 March 2008 (UTC)
    • I might suggest having a white background under the whole thing. I can't see any reason to have a transparent bg on this image. I might also suggest changing the stroke color on the L-Ring to be black or blue other than red, which looks weird. You may want to add a label that says Cytosol. I'm also confused about the label Cell Wall, my understanding is that the inner and outer membranes, together with the periplasmic space in-between, all together make up the cell wall. Is there a reference to check? Otherwise very nice image, Support. Jeff Dahl (Talk • contribs) 18:37, 3 March 2008 (UTC)
      • My main references are: [1],[2], [3], [4], between others, where the first 3 are my main sources. I changed the colors. -LadyofHats (talk) 21:42, 3 March 2008 (UTC)
    • Yeah, make the entire background white, just so that the sections of BG don't stand out. Remove the current white boxes, then fill the entire BG with white again. —Vanderdecken∴ ∫ξφ 11:14, 4 March 2008 (UTC)
• Support--Mbz1 (talk) 18:08, 3 March 2008 (UTC)
• Support -- Alvesgaspar (talk) 19:48, 3 March 2008 (UTC)
• Conditional support,Oppose I'd like to see a mention that this is from a Gram-negative bacteria in the caption because Gram-positive flagella and eukaryotic flagella are quite different. I also believe this type of flagella also moves in a rotational fashion, not so much a whip like action.D-rew (talk) 21:27, 3 March 2008 (UTC)
  • i do have a diagram of an eukariotyc cillia. but tell me what is the diference between a gramm positive flagella and one gramm negative? if it is so big maybe i should do 2 diagrams -LadyofHats (talk) 21:42, 3 March 2008 (UTC)
    • It's big enough that its not trivial. The main differences are in the attatchment points, because think about it, for a Gram-positive its gotta go through one plasma membrane, but in Gram-negative its gotta go through two which involves a whole other smattering of proteins. Here are some outside links to other diagrams to give you something to work with. Scroll down to section figure 2.47 about 2/3 the way down the page. There are also some good diagramshere. This page fig 1.4 should show you some of the differences in how they move(note it is a Eu flagella that acts like a whip (a la sperm), but a Pro flagella that spins like a propeller).Also note that eukaryotic cilia aren't the same thing as eukaryotic flagella. Here are the differences between cilia and flagella put simply.D-rew (talk) 22:16, 3 March 2008 (UTC)
    • Don't even get me started on spirochete flagella. My point is that there are a lot of different types of flagella, and a lot of them don't look like this, so I think some specification is in order.D-rew (talk) 00:24, 4 March 2008 (UTC)
      • ok i got what you mean :P geesh, i think the more diagrams i do the more complicated they get. I have changed the description page to a Gram-negative bacterial flagellum, will do some research on other flagellums as soon as i finish some 25 life cicles of baterias i was asked to do :P -LadyofHats (talk) 11:17, 4 March 2008 (UTC)
        • Yup, complicated is right. Keep on keepin' on though, well made diagrams are always useful and much appreciated. =->D-rew (talk) 19:37, 4 March 2008 (UTC)
        • I would still like to see a specification of the type and a correction of the motion of the flagella.D-rew (talk) 23:56, 4 March 2008 (UTC)
• Support de Bivort 22:18, 3 March 2008 (UTC)
• OpposeSupport The flagellum looks straghely squeezed against the outer membrane, and shouldn't it the junction be a ~45 degree angle compared to the rotor? And the caption should mention what type of bacteria it is (a proteobacterium?). And it doesn't have any references. Narayanese (talk) 00:33, 8 March 2008 (UTC)
  • squeezed against? i didnt got that part, can you explain?. my source makes the hook 90 degrees. but i changed it a bit since some other sources do show it less inclinated. I added some information on the description of movement. and none of my sources metioned a specific kind of bacteria. so i have no idea if it is or not a proteobacterum or not. Plus if you read a bit up in this discussion you can see the links to some of my sources. The reason why i dont place them on the description page is that they are external links and with the time they tend to become invalid. -LadyofHats (talk) 03:25, 8 March 2008 (UTC)
    • I've only seen unipolar flagella myself and they point out from the cell and only start bending a lot further out, but at second thought I suppose the amphitrichous/peritrichous; ones do lie close to the membrane like in the picture. Now I see your sources, good. I looked up the hook angle, it's 65 degrees in Salmonella (Foruta 2007, PMID 17142059), so your current bend is ok.Narayanese (talk) 08:15, 8 March 2008 (UTC)
• Comment - Is there issues regarding the caption lines at different sizes or is it my browser? -62.172.143.205 (talk) 20:00, 9 March 2008 (UTC)
• Comment I changed the caption, likening it to a propeller. (source: [5]) and specifying organism. Narayanese (talk) 22:35, 9 March 2008 (UTC)

Promoted Image:Flagellum base diagram.svg MER-C 11:20, 10 March 2008 (UTC)