Coxiella and Rickettsiella

comparison of ultrastructure with special reference to their envelope.

Vsevolod Popov, G. Sutáková, J. Rehácek, N. Smirnova, A. Daiter

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Ultrastructure of Rickettsiella phytoseiuli (R.p.) multiplying in female ticks Dermacentor reticulatus was compared with that of Coxiella burnetii (C.b.) in the same ticks and in mice. C.b. in ticks and mice were always represented by 2 main cell types: small dense round or rod-like cells (DC) and larger bacteria-like cells (BC). DC were surrounded with a characteristic five-layered 20 nm thick envelope. Under the envelope DC had a stack of parallel intracytoplasmic membranes with a periodicity 5-6 nm. R.p. in tick fat body and synganglion were also inside phagosomes and formed 6 sequentially developing cell forms: dense (elementary), intermediate, bacterial, giant, and crystal-forming in which small dark bodies (initial particles) condensed. Two of them--dense and bacterial--corresponded to DC and BC of C.b. The DC envelope structure of R.p. was strikingly similar to that of some C.b. DC in mouse. We confirmed the general morphologic similarities in the structure of C.b. and R.p. DC and that of C.b. BC and intermediate cells of R.p. The envelope structure of DC type was found in other gracilicute bacteria and is supposed to have no taxonomic value but to be a reflection of population heterogeneity.

Original languageEnglish (US)
Pages (from-to)573-579
Number of pages7
JournalActa Virologica
Volume35
Issue number6
StatePublished - Nov 1991
Externally publishedYes

Fingerprint

Coxiellaceae
Coxiella
Coxiella burnetii
Ticks
Bacteria
Dermacentor
Phagosomes
Fat Body
Periodicity
Population Characteristics

ASJC Scopus subject areas

  • Immunology
  • Virology

Cite this

Popov, V., Sutáková, G., Rehácek, J., Smirnova, N., & Daiter, A. (1991). Coxiella and Rickettsiella: comparison of ultrastructure with special reference to their envelope. Acta Virologica, 35(6), 573-579.

Coxiella and Rickettsiella : comparison of ultrastructure with special reference to their envelope. / Popov, Vsevolod; Sutáková, G.; Rehácek, J.; Smirnova, N.; Daiter, A.

In: Acta Virologica, Vol. 35, No. 6, 11.1991, p. 573-579.

Research output: Contribution to journalArticle

Popov, V, Sutáková, G, Rehácek, J, Smirnova, N & Daiter, A 1991, 'Coxiella and Rickettsiella: comparison of ultrastructure with special reference to their envelope.', Acta Virologica, vol. 35, no. 6, pp. 573-579.
Popov, Vsevolod ; Sutáková, G. ; Rehácek, J. ; Smirnova, N. ; Daiter, A. / Coxiella and Rickettsiella : comparison of ultrastructure with special reference to their envelope. In: Acta Virologica. 1991 ; Vol. 35, No. 6. pp. 573-579.
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