Químicoreceptor of Salmonella typhimurium?

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Discussion Overview

The discussion revolves around the receptors involved in the chemotaxis of Salmonella typhimurium, specifically how these receptors detect stimuli and differentiate between positive and negative signals.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant inquires about the specific receptors in Salmonella typhimurium that are responsible for detecting stimuli in chemotaxis.
  • Another participant corrects the terminology from "quimiotaxis" to "chemotaxis."
  • A participant expresses uncertainty about how the receptors determine whether a stimulus is positive or negative.
  • A later reply suggests that relevant literature discusses the 'che' genes and notes homology between E. coli and Salmonella, providing links to scientific articles for further reading.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the specifics of how the receptors function, and the discussion includes multiple viewpoints and uncertainties regarding the detection of stimuli.

Contextual Notes

Limitations include a lack of detailed information on the mechanisms of receptor function and the specific nature of the stimuli being detected.

Terrazas
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Hello, If some one can help me which or where is te receptor of the Salmonella typhimurium. That detects an stimule in quimiotaxis.
 
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Andy Resnick said:
do you mean 'chemotaxis'?
Yes, jaja sorry, i mean i know that sallmomena detects an stimule with receptors but I don't konow how receptors detect if is a positive or negative stimule
 
Terrazas said:
Yes, jaja sorry, i mean i know that sallmomena detects an stimule with receptors but I don't konow how receptors detect if is a positive or negative stimule

Have you search the literature? The relevant genes appear to be the 'che' genes, and there is homology between E. Coli and Salmonella. A quick search yields:

http://www.sciencedirect.com/science/article/pii/0092867488904898
http://www.pnas.org/content/84/18/6422.short
http://jb.asm.org/content/130/1/223.full.pdf
http://nar.oxfordjournals.org/content/33/5/1690.short
 

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