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Microbiology C‑class Mid‑importance

This article is within the scope of WikiProject Microbiology, a collaborative effort to improve the coverage of Microbiology on Misplaced Pages. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MicrobiologyWikipedia:WikiProject MicrobiologyTemplate:WikiProject MicrobiologyMicrobiology C This article has been rated as C-class on Misplaced Pages's content assessment scale. Mid This article has been rated as Mid-importance on the project's importance scale.

Chiron link

• I've pulled the Chiron link (http://chiron.com/041008_testimony.pdf); it appears to be dead and my search for an archived copy (Wayback Machine, etc) didn't turn up anything. If anyone can find a link, we can stick it back in. -- MarcoTolo 21:54, 3 May 2006 (UTC)

colour changes according to growth temperatures

Can any of you suggest a reason why the colonies of Serratia are different colours at different growth temperatures? If you could, please add the information to this page. Thx.

why colour changes according to growth temperatures

The red pigment produced by Serratia marcescens is prodigiosin. Its production, and that of another lipid (the surfactant serrawettin W1), is regulated by the product of a gene hexS. Mutants lacking HexS over-produce the first enzyme in prodigiosin production, encoded by the pigA gene (and the swrW gene, implicated in the synthesis of serrawettin W1. Presumably, this gene is temperature-sensitive.

Prodigiosin is a secondary metabolite of Serratia marcescens and its production is regulated by changes in growth medium as well as by teperature shifts.

References

1. TanikawaT, Nakagawa Y, Matsuyama T (2006). "Transcriptional downregulator hexS Controlling Prodigiosin and serrawettin W1 biosynthesis in Serratia marcescens". Microbiol Immunol. 50 (8): 587–96. PMID 16924143.{{cite journal}}: CS1 maint: multiple names: authors list (link)

Is toothbrushes bristles pinked a Serratia infection?

I'm a brazilian biologist and a have a question important to me: since last month my toothbrush bristles was pinked. Just my toothbrush, not the toothbrushes of my wife and sons. Then I used a new toothbrush, but at the day after first use, the bristles were pinked. I'm trying to understand this mistery for weeks, until now, when I found the text about Serratia marcescens. Is it possible my mouth/teeths/gum are infected? If yes, what I have to do, if Serratia is resistent to antibiotics? If not, what explains the toothbrushes pinked...? —Preceding unsigned comment added by 187.18.227.217 (talk) 09:18, 12 May 2011 (UTC)

Chlorhexidine (Corsodyl) is the first and best treatment for gingivitis. Serratia is not resistant to it. --192.38.89.32 (talk) 13:06, 21 May 2016 (UTC)

External links modified

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