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Lethal Effect of Rickettsia rickettsii on Its Tick Vector (Dermacentor andersoni)
Open accessAbstract
Rickettsia rickettsii, the causative agent of Rocky Mountain spotted fever, was lethal for the majority of experimentally and transovarially infected Rocky Mountain wood ticks (Dermacentor andersoni). Overall, 94.1% of nymphs infected as larvae by feeding on rickettsemic guinea pigs died during the molt into adults and 88.3% of adult female ticks infected as nymphs died prior to feeding. In contrast, only 2.8% of uninfected larvae failed to develop into adults over two generations. Infected female ticks incubated at 4°C had a lower mortality (80.9%) than did those held at 21°C (96.8%). Rickettsiae were vertically transmitted to 39.0% of offspring, and significantly fewer larvae developed from infected ticks. The lethal effect of R. rickettsii may explain the low prevalence of infected ticks in nature and affect its enzootic maintenance.
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Citations
Cited by
Tick-Borne Rickettsioses around the World: Emerging Diseases Challenging Old Concepts
Parola, P., Paddock, C. D., & Raoult, D. (2005) · Clinical Microbiology Reviews · doi:10.1128/cmr.18.4.719-756.2005 · Cited by 1,158
Ecology of Rickettsia in South America
Labruna, M. B. (2009) · Annals of the New York Academy of Sciences · doi:10.1111/j.1749-6632.2009.04516.x · Cited by 447
The emerging diversity of Rickettsia
Perlman, S. J., Hunter, M. S., & Zchori-Fein, E. (2006) · Proceedings of the Royal Society B: Biological Sciences · doi:10.1098/rspb.2006.3541 · Cited by 409
Parham, P. E., Waldock, J., Christophides, G. K., Hemming, D., Agusto, F., Evans, K. J., Fefferman, N., Gaff, H., Gumel, A., LaDeau, S., et al. (2015) · Philosophical Transactions of the Royal Society B: Biological Sciences · doi:10.1098/rstb.2013.0551 · Cited by 337
Tick-Borne Zoonoses in the United States: Persistent and Emerging Threats to Human Health
Eisen, R. J., Kugeler, K. J., Eisen, L., Beard, C. B., & Paddock, C. D. (2017) · ILAR Journal · doi:10.1093/ilar/ilx005 · Cited by 312
Metadata
- Authors
- Niebylski, M. L., Peacock, M. G., & Schwan, T. G.
- Venue
- Applied and Environmental Microbiology
- Publisher
- American Society for Microbiology
- Published
- 1999-02
- Volume
- 65
- Issue
- 2
- Pages
- 773-778
- ISSN
- 0099-2240 (ISSN-L)
- 1098-5336
- OpenAlex
- W2139388979
- Cited by
- 238
- References
- 0
- FWCI
- 2.49
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Niebylski, M. L., Peacock, M. G., & Schwan, T. G. (1999). Lethal Effect of Rickettsia rickettsii on Its Tick Vector (Dermacentor andersoni). Applied and Environmental Microbiology. https://doi.org/10.1128/aem.65.2.773-778.1999
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
