Talk:Quorum sensing

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Contents 1 am i missing something 2 yeah more links? 3 complicated 4 Cell density is not population density 5 On "Modelling" 6 Quorum sensing applies to more than bacteria!

[edit] am i missing something

1. I mean I love the royal society and their philosophical transactions, but is that link just bunk or what. it's more like their ad page; did i miss the links? i mean i know how to get access free through my university, but I hate these dumb pages that just link to more ads. did i miss the pdf link? next thing I knew I was back in 2008, and where's the special issue. this ain't the place to advertise overpriced academic journals, right? Potamites (talk) 05:18, 5 March 2008 (UTC)

oh click on this "To access and purchase articles online, click here. The introduction to the issue is FREELY AVAILABLE." can't it just link to there: http://journals.royalsociety.org/content/w26732234707/?p=c1685368363e450faabedd3ee8fd60dc&pi=3

2. I really just need the name of that prof that discovered this stuff like not even that long ago and after no non-wiki site bounced back the reference for me, since apparently I think that she needs the credit more than anyone else does, I figured, surely wiki won't let me down, but I was wrong. maybe she doesn't deserve the credit; but it makes me feel smart to care.Potamites (talk) 05:18, 5 March 2008 (UTC)

I added this title so as not to pretend I was saying what he said:

[edit] yeah more links?

I may be totally off-base, but I have a distinct memory of reading somewhere that some slime molds are capable of "fooling" the quorum sensing of some bacteria, and thus "herding" them. I may have misinterpreted something... -- Jussi-Ville Heiskanen 02:49, Dec 15, 2003 (UTC)

Wow, interesting stuff and rather well written; I'd like to see some 'See Also' links for this page, but I'm not too sure what would be apt. --ImABadBroth 01:46, 24 March 2007 (UTC)

[edit] complicated

I guess the subject is complicated, but could somebody clear up some of the long winded sentences. It could make things easier... a little bit anyway.

[edit] Cell density is not population density

A lot of people, when speaking/writing about quorum sensing, tend to mention cell density or bacterial density a lot, without realizing that it's semantically a huge nonsense. In fact, they would like to talk about population density, and this should systematically be pointed out to them.

Density of matter, either be living or inert, is defined as a ratio of units of mass per units of volume. One can increase the density of any matter for example by applying pressure and decreasing its volume. If a bacterium was so shrunk by pressure to the half of its original volume, its density would then double. Therefore, people that say that bacteria adjust their gene expression according to their density are actually implying that by compressing enough of the cells one could force them to express certain genes (that is certainly true) and that those genes that would be expressed under such conditions would define the quorum sensing regulome (that is absolutely false!).

Therefore, whoever pretends to be talking sensibly about quorum sensing and understands the fundamental notions of its principles should rather talk about the correlation between gene expression and population density, expressend in number of cells per unit of volume, and not in a nonsense cell or bacterial density, which is a real but completely unrelated physical parameter expressed in kilograms per m³.

Sophos II (talk) 23:29, 6 December 2007 (UTC)

[edit] On "Modelling"

This section is rather tangential/off-topic. Does this article really need 5 paragraphs of fiddling with an equation? I'm not sure it demonstrates anything useful about quorum sensing. In any case, I think one might make a strong case that this is original research. I'd fix it myself, but I personally find little or no redeeming value in it. Would anyone care to fix it, or consent to its deletion? --♦♦♦Vlmastra♦♦♦ (talk) 01:20, 31 December 2007 (UTC)

Absolutely agree. I agree that it can be trimmed down to one sentence or deleted. Antorjal (talk) 14:20, 31 December 2007 (UTC)

I went ahead and deleted it, since I didn't find much I thought was important. I have also noticed that the user responsible for this content, 66.215.123.233 (talk), has been editing mostly to include Kleiber's Law in tangential areas such as Junk DNA. --♦♦♦Vlmastra♦♦♦ (talk) 21:32, 2 January 2008 (UTC)

[edit] Quorum sensing applies to more than bacteria!

I am adding some info on social insects and other systems that use quorum sensing. I also edited the current content to make it more organized. —Preceding unsigned comment added by Michelanious (talk • contribs) 09:55, 7 May 2008 (UTC) It's always neat to find parallels between disciplines!