auxotrophic

Bob bbruner at uclink4.berkeley.edu
Sat Jan 27 12:57:47 EST 2001


On Fri, 26 Jan 2001 00:43:04 +0200, "dnardi" <dovnardi at yahoo.com>
wrote:

>This is a multi-part message in MIME format.

Turn off your html/mime. Doesn't belong in usenet!

>I answered your question and would like to correct and expand my answer.
>

If only!

This person is _soliciting_ email questions in a range of fields. That
implies expertise, coupled with some ability to know what one knows
and what one does not. And now we see that even an attempt to correct
a reply is incorrect. Beware!


>The term auxotrophic relates to prokaryotic organisms 

No. May be prokaryotic or eukaryotic.

>that cannot =
>produce essential compounds for their "living" (such as germs that =
>cannot produce the amino acid argenin) in comparison to the wild type of =
>that particular type of germ.
>
>The term prototrophic means the opposite of auxotrophic and relates to =
>prokaryotic organisms that can produce essential compounds for their =
>"living", another words, the term autotrophic refers to the wild type of =
>a prokaryotic organism.

no, you mean prototroph, but even that is questionable. Wild types may
or may not be prototrophs.


>
>The term autotrophic refers to a completely different part of =
>microbiology.  

Huh?

>Prokaryotic organisms are classified into four main =
>categories.  The first category is divided to two parts that are =
>differentiated by ability of the prokaryotic organisms use different =
>substances as a source of energy.  The first group is called phototrophs =
>that use sunlight as a source of  energy and the second group is called =
>chemotrophs use organic compounds as the source of energy.  The second =
>category

and also the first one. Otherwise you wouldn't get the four groups you
promised us.

bob

> is divided to two parts that are differentiated by ability of =
>the prokaryotic organisms use different substances as a source of =
>carbon. The first group is called autottrophs that use carbon di-oxide =
>as a source of  carbon and the second group is called hetrotrophs that =
>use organic compounds as the source of carbon.
>
>I will be happy to answer any of your other questions in: biology, =
>microbiology, chemistry, biochemistry etc. at my email: =
>alonnardi at yahoo.com






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