» Śro gru 28, 2011 11:44
Re: Nasza kocia rodzinka. Niunia (FeLV+) Niunia [']
Wczytałam się w to dokładniej.
Ten pierwszy rodzaj Mycoplazma, związany z dużym ryzykiem - nie został stwierdzony.
Natomiast badanie wykazało występowanie tego drugiego Mycoplazma, o niższym potencjale zagrożenia.
Obydwa te rodzaje to Hemobartonella. Na samym początku jest napisane tak:
Haemotropic mycoplazma (poprzednio Hemobartonella)
Mycoplazma haemofelis - negative
Candidatus Mycoplazma haemominutum - positive
Poniżej przedruk części artykułu medycznego:
IInternational Journal of Systematic and Evolutionary Microbiology (2001), 51, 815–817 Printed in Great Britain
NOTE
‘Candidatus Mycoplasma haemominutum’, a
low-virulence epierythrocytic parasite of cats
Department of Medicine
and Epidemiology and
Center for Companion
Animal Health, School of
Veterinary Medicine,
University of California,
Davis, CA 95616, USA
Janet E. Foley and Niels C. Pedersen
Author for correspondence: Janet E. Foley. Tel: 1 530 752 3692. Fax : 1 530 752 7701.
e-mail: jefoley!ucdavis.edu
The phylogenetic position and some taxonomically relevant characteristics of a
small, low-virulence bacterial parasite of cats are described. A 16S rDNA
analysis revealed that the organism was in the Mycoplasma clade and was
most closely related to a parasite of pigs previously designated Eperythrozoon
suis. As the organism has not been cultured in vitro and is maintained in serial
passage in cats in vivo, Candidatus status is proposed for this novel taxon as
‘Candidatus Mycoplasma haemominutum’.
Keywords : `Candidatus Mycoplasma haemominutum', feline infectious anaemia,
Haemobartonella felis
Haemobartonellosis or feline infectious anaemia is a
potentially fatal clinical syndrome of domestic cats
consisting of immune-mediated osmotic fragility of
erythrocytes following parasitism by the obligately
epierythrocytic bacteria `Candidatus Mycoplasma
haemofelis ' (synonyms `Eperythrozoon felis', Haemo-
bartonella felis). The causative organism is a 0±5±
0±6 lm Gram-negative rod, coccus or disc-shaped
parasite that replicates by binary ®ssion. Both Epery-
throzoon and Haemobartonella species were classed
initially as rickettsias on the basis of staining charac-
teristics, obligate parasitic habit, susceptibility to
tetracycline and difficulty (or impossibility) of cul-
tivation in vitro. Recently, we observed anaemia in a
cat with no obvious `Candidatus Mycoplasma haemo-
felis ' organisms on erythrocytes examined by Wright
staining of thin blood smears. Through passage in vivo,
it became clear that the cat was co-infected with an
immunosuppressive feline leukaemia virus (FeLV) and
a novel haemobartonella-like organism. Repeated
passages in vivo consistently reproduced infection,
although cats that were feline leukaemia-negative did
not have haematological changes or clinical signs
typical of moderate to severe haemobartonellosis. The
new organism was described as H. felis small form
(Hfsm), to distinguish it from the more common,
larger H¯g. However, phylogenetic analysis and bio-
logical characteristics suggest that it may be a species
distinct from `Candidatus Mycoplasma haemofelis '.
We describe biological characteristics of this small
feline haemoparasite and propose a candidate species
name, `Candidatus Mycoplasma haemominutum'.
Ostatnio edytowano Śro gru 28, 2011 11:59 przez
mb, łącznie edytowano 2 razy