Mycoplasma suis in naturally infected pigs: an ultrastructural and morphometric study

Swine eperythrozoonosis is a haemotrophic disease caused by Eperythrozoon suis, actually called Mycoplasma suis, an extracellular bacterial organism that apparently adheres to pig erythrocyte membrane, inducing its deformation and damage. Since little is known about the ultrastructural and morphomet...

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Bibliographic Details
Published in:Pesquisa Veterinária Brasileira 2004-01, Vol.24 (1), p.1-5
Main Authors: Portiansky, E.L, Quiroga, M.A, Machuca, M.A, Perfumo, C.J
Format: Article
Language:English
Subjects:
BACTERIA
CERDO
Eperitrozoonose
EPERYTHROZOON
Eperythrozoonosis
EPIRITROZOONOSE
INFECCAO
INFECCIÓN
INFECTION
morfometria
morphometry
Mycoplasma suis
pathogenesis
patogenia
PORCIN
SUINO
SWINE
ultra-estrutura
ultrastructure
VETERINARY SCIENCES
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Summary:Swine eperythrozoonosis is a haemotrophic disease caused by Eperythrozoon suis, actually called Mycoplasma suis, an extracellular bacterial organism that apparently adheres to pig erythrocyte membrane, inducing its deformation and damage. Since little is known about the ultrastructural and morphometrical aspects of this microorganism, the present work aimed to deal with these issues. The ultrastructural study revealed the presence of structures corresponding to tubules disseminated throughout the soma of M. suis. A variable separation between the microorganism membrane and that of the erythrocyte was also observed. The structural and positional attitude of M. suis could allow speculation about its mechanism of action. A eperitrozoonose suína é uma doença hemotrópica causada por Eperitrozoon suis, atualmente denominado Mycoplasma suis, uma bactéria extracelular que, aparentemente, adere à membrana dos eritrócitos suínos, induzindo sua deformação e lesionando-os. O presente trabalho busca estabelecer os aspectos estruturais e ultra-estruturais, pouco conhecidos, deste microorganismo. O estudo ultra-estrutural revelou a presença de estruturas correspondentes a túbulos disseminados no soma bacteriano. Observou-se também uma separação variável entre a membrana do microorganismo e a parede do eritrócito. O estudo morfométrico e a localização de M. suis pode permitir especulação sobre seu mecanismo de ação.
ISSN:0100-736X
1678-5150
0100-736X
DOI:10.1590/S0100-736X2004000100002