Issue |
Ann. Parasitol. Hum. Comp.
Volume 55, Number 3, 1980
|
|
---|---|---|
Page(s) | 259 - 270 | |
DOI | https://doi.org/10.1051/parasite/1980553259 | |
Published online | 20 September 2017 |
Mémoire
The ultrastructure of Rickettsia slovaca in naturally infected females of the tick Dermacentor marginatus
Ultrastructure de Rickettsia slovaca dans des tiques femelles de Dermacentor marginatus naturellement infectées.
1
Institut de Zoologie, Université, Mail, CH-2000 Neuchâtel, Switzerland.
2
Institute of Virology, Slovak Academy of Sciences, , Bratislava (CSSR).
Accepted: 10 January 1980
The ultrastructure of Rickettsia slovaca in naturally infected females of the tick Dermacentor marginatus is similar to that of other members of the spotted fever group rickettsiae. R. slovaca was found to multiply in all organs, tissues land cells examined. It is primarily found free in the cytoplasm ; occasionally it may also invade the cell nucleus.
Special attention was paid to the rickettsiae in the salivary gland. They multiply in all cells of the three acini types I-III and also in the duct cells. The amount of rickettsiae eliminated via the saliva reached values of about 104EID 50/ml.
Résumé
La structure fine de Rickettsia slovaca dans des femelles naturellement infectées de la tique Dermacentor marginatus est similaire à celle d’autres rickettsies du groupe « spotted fever ». R. slovaca se multiplie dans tous les organes et tissus examinés. Elle se trouve généralement dans le cytoplasme ; occasionnellement elle peut aussi envahir le noyau.
Les rickettsies des glandes salivaires ont été soigneusement étudiées. Elles se multiplient dans toutes les cellules des trois types d’acini (I-III), ainsi que dans les cellules des conduits évacuateurs. Le nombre de rickettsies éliminées par la salive atteint la valeur approximative de 10 4EID 50/ml.
© Masson, Paris 1980, transferred to Société Française de Parasitologie
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