Salmonella phase variation

Not Metew kjjhouhh at
Thu Nov 9 17:51:03 EST 2000

What are type III secretions and how are they related to phase variation,
or why do you think they are related to phase variation??

What benefit is accrued to our understanding of salmonellae by learning
this information?

I ask the first because I don't know the answer.

I ask the second because it is something you should be able to answer,
at least partially before selecting a project.  (A good answer for the MS level 
and even PhD level, might actually be just to gain the information!) But do
you have something more in mind?

In article <#Ud1PioSAHA.330 at cpmsnbbsa09>, pjfenneran at says...
>I was thinking about growing several strains on various media types, ph
>levels, and temperature.  Then with a probe find out which produced the
>highest concentration of the type III secretion.  Again, I am just starting
>my lit review and in fact have found volumes of journals that have
>concentrated on this organism.  I am just looking for some guidance.
>"N. Okia" <loisfeh at> wrote in message
>news:8tsi6e$23r$1 at
>> In article <eiFjiNQRAHA.283 at cpmsnbbsa07>, pjfenneran at says...
>> >
>> >I am starting my masters thesis on the salmonella pathengicity island.  I
>> >thinking about growing them on  nitrocellulose with a probe and under
>> >varying growth conditions finding the optimal factors for both phases.  I
>> >would like to see if anyone has any guidance on this venture
>> >
>> >
>> I'm not sure what you mean by finding the optimal factors for both phases.
>> Clinical labs have long had a way to get the organisms to exhibit
>> each phase, so what are you getting at?
>> Let's here some more about this, but keep in mind that there are thousands
>> (40-60000) of publications on salmonellae.  Be sure you do your literature
>> homework before deciding on a thesis and be sure that what you decide
>> you want to do CAN BE DONE in the laboratory where you are learning and
>> There is no point to taking 4 years (or 3 years) to get a masters degree.

More information about the Microbio mailing list