---------------------------- Forwarded with Changes ---------------------------
From: Bj|rn Osterman
Date: 10/18/95 10:11AM
*To: Bionet.Microbiology at UUCP
*To: sar at nauvaux.ucc.nau.edu at UUCP
Receipt Requested
Subject: Re: Anyone familiar with Ochrobactrum?
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Sorry for miswriting:
I am writing about phylogenetic relatives of Ochrobactrum.
Bjorn Osterman
______________________________ Forward Header ___________________
Subject: Re: Anyone familiar with Ochrobactrum?
Author: Bj|rn Osterman at alinks
Date: 1995-10-18 10.11
Ochrobactrum anthropi (formerly called CDC group Vd) is described
and characterized by Holmes et al. in 1988, International Journal
of Systematic Bacteriology, 38:406-416.
Ochrobactrum anthropi is phylogenetically closely related to
members of genus Brucella, belonging to the alpha-2 subdivision
of Proteobacteria. Ochrobactrum anthropi is placed on what is
called the Brucella rRNA branch of the rRNA superfamily IV, with
its closest neighbours Brucella, Phyllobacterium, Agrobacterium,
Rhizobium, Mycoplana.
Ochrobactrum anthropi has been given its species name anthropi
(of a human being), because at the time of characterization all
strains "thus far recovered" were from human clinical specimens.
As far as I know there has been no addition to this statement
since then (1988).
Perhaps this is the reason why the used identification system in
this specific case delivers a result of similarities below
significance, regarding the described unknown soil isolate.
Furthermore 16S rRNA gene sequencing does pose a problem when
phylogenetic relatives are investigated. The resolution capacity
of this analysis technique is not good enough. Concerning the
described unknown soil isolate, I believe it is wise to look upon
these phylogenetic relatives of Ochrobactrum, and perhaps there
you will find the identification answer you are looking for.
Bjorn Osterman
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Bjorn Osterman, MD
SMCL/Bakt e-mail: bjorn.osterman at alinks.se
Sabbatsbergs Hospital fax: +46-8-253077
PO Box 6401 phone: +46-8-6906480
S-113 82 STOCKHOLM, SWEDEN
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