An Apparatus for Observations on the Feeding Mechanism of the Flea

Lavoipierre, M. M. J.; Hamachi, Masataka

doi:10.1038/192998a0

Cited by 11 publications

(5 citation statements)

References 2 publications

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“…Fleas are considered to be primarily capillary feeders; they probe the skin with their mouthparts until a blood vessel is cannulated and a blood meal is siphoned directly from the vessel [ 21 , 22 ]. Blocked fleas can deposit Y .…”

Section: Resultsmentioning

confidence: 99%

Dermal Neutrophil, Macrophage and Dendritic Cell Responses to Yersinia pestis Transmitted by Fleas

2015

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Yersinia pestis, the causative agent of plague, is typically transmitted by the bite of an infected flea. Many aspects of mammalian innate immune response early after Y. pestis infection remain poorly understood. A previous study by our lab showed that neutrophils are the most prominent cell type recruited to the injection site after intradermal needle inoculation of Y. pestis, suggesting that neutrophil interactions with Y. pestis may be important in bubonic plague pathogenesis. In the present study, we developed new tools allowing for intravital microscopy of Y. pestis in the dermis of an infected mouse after transmission by its natural route of infection, the bite of an infected flea. We found that uninfected flea bites typically induced minimal neutrophil recruitment. The magnitude of neutrophil response to flea-transmitted Y. pestis varied considerably and appeared to correspond to the number of bacteria deposited at the bite site. Macrophages migrated towards flea bite sites and interacted with small numbers of flea-transmitted bacteria. Consistent with a previous study, we observed minimal interaction between Y. pestis and dendritic cells; however, dendritic cells did consistently migrate towards flea bite sites containing Y. pestis. Interestingly, we often recovered viable Y. pestis from the draining lymph node (dLN) 1 h after flea feeding, indicating that the migration of bacteria from the dermis to the dLN may be more rapid than previously reported. Overall, the innate cellular host responses to flea-transmitted Y. pestis differed from and were more variable than responses to needle-inoculated bacteria. This work highlights the importance of studying the interactions between fleas, Y. pestis and the mammalian host to gain a better understanding of the early events in plague pathogenesis.

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Section: Resultsmentioning

confidence: 99%

Dermal Neutrophil, Macrophage and Dendritic Cell Responses to Yersinia pestis Transmitted by Fleas

2015

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“…Os triatomíneos são artrópodes solenofági-cos (Lavoipierre & Hamachi, 1961), retirando o sangue diretamente dos vasos sangüíneos (vê-nulas e arteríolas). Os eventos que ocorrem no processo de alimentação incluem detecção do hospedeiro, chegada até ele, movimento exploratório ativo das partes da boca pela superfície da pele do hospedeiro, picada ou penetração (inserção das partes da boca dentro da superfí-cie), localização do sangue (em um vaso sangüíneo), ingestão do sangue e término da alimentação (Friend & Smith, 1977).…”

Section: Introductionunclassified

Potencial biológico do Triatoma brasiliensis

et al. 2000

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Biological and physiological parameters of Triatoma brasiliensis, Triatoma infestans,and Triatoma pseudomaculata were studied and compared. T. brasiliensis, reared on mice, showed a faster evolutionary cycle from first stage to adult and higher fecundity, when compared to the other species. T. infestans showed the fastest blood intake in both hosts tested, followed by T. brasiliensis and T. pseudomaculata. Clotting tests using salivary gland extracts of T. brasiliensis presented intermediary values of anti-clotting activity when compared to T. infestans and T. pseudomaculata. Key words

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“…Atyphloceras multidentatus Hubbard 1940d:4, 1941c:3–4 (OR), Augustson 1943:84, Ewing and I. Fox 1943:39, Hubbard 1943a:7 (CA), Burroughs 1944:11 (none), Hubbard 1947:276–277 (CA, OR, WA), Holland 1949a:73 (BC), Holdenried et al 1951:14 (CA), Tipton and Allred 1951:107, Allred 1952:70 (UT), Traub and Johnson 1952:3 (none), Augustson and Wood 1953:54, Augustson 1955:36 (CA), Beck 1955:28 (UT), Linsdale and Davis 1956:297 (CA), Jameson and Brennan 1957:49, Miles et al 1957:756, Murray 1957:1078, Quan et al 1960a:92 1960b:86 (CA), Lavoipierre and Hamachi 1961 (none), Stark and Miles 1962:529, Smith and Lusk 1971:67, Coultrip et al 1973:306 (CA), Jellison and Senger 1976:57–58 (CA, OR), Faulkenberry and Robbins 1980:93, Robbins and Faulkenberry 1982:72 (none), Schwan et al 1985:375, Ayala-Barajas et al 1988:32 (CA), Krasnov et al 2004a:235 (none), Morrone and Acosta 2006:19 (none).…”

Section: Results Systematic Entomologymentioning

confidence: 99%

“…Although the HC is a mix of different collectors (without year-round collecting protocols), most are collected in the winter months (some from animals and some from burrows): January 4♂, 7♀, February 1♂, 2♀, March 1♀, June 1♀, August 1♀, September 1♀, November 5♂, 4♀. Lavoipierre and Hamachi (1961) proved that Atyphloceras multidentatus multidentatus is a capillary feeder and Kartman et al (1968) stated that it can be infected with Y. pestis in nature, while Allred (1952) also claimed it is a “capable vector” of plague. Lincoln and Malheur counties, California are new county records for Atyphloceras multidentatus multidentatus (Table 3)…”

Section: Results Systematic Entomologymentioning

confidence: 99%

An Assemblage of Fleas (Siphonaptera) From Canada, México, and the United States of America, in the Hastriter Collecton (Brigham Young University)

Hastriter

2023

Annals of Carnegie Museum

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An accumulation of fleas that constitute the Hastriter flea collection includes accounts/records of 167 species over 48 years. These officially belong to the Brigham Young University flea collection. They are summarized in this treatise with identifications of new state, county, and provicincial records from the United States, Canada, and some species that extend south into México. Records included are represented by eight families that are presented in alphabetical order (Ceratophyllidae, Ctenopthalmidae, Hystrichopsyllidae, Ischnopsyllidae, Leptopsyllidae, Pulicidae, Rhopalopsyllidae, and Vermipsyllidae). Major synonomies are provided with each species (excluding very common and cosmopolitan species) with major political subdivisions following each reference/pagination. Two appendices are included that list important references (not included in synonomies) (Appendix I) and a listing of synonyms for the family Ceratophyllidae (Appendix II). Four tables are included that list new geographical records and one table that notes new host records. Seventy-eight flea species (some of the same species were new for different state, county and provincial records) accounted for 129 new U.S. state or Canadian provincial records. These also included 12 new state records. An additional 15 new host records for 13 different flea species were documented. To aid future investigations, significant research findings such as disease investigations, zoonotic disease control measures, seasonal bionomics, et cetera are annotated in the remarks.

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An Apparatus for Observations on the Feeding Mechanism of the Flea

Cited by 11 publications

References 2 publications

Dermal Neutrophil, Macrophage and Dendritic Cell Responses to Yersinia pestis Transmitted by Fleas

Dermal Neutrophil, Macrophage and Dendritic Cell Responses to Yersinia pestis Transmitted by Fleas

Potencial biológico do Triatoma brasiliensis

An Assemblage of Fleas (Siphonaptera) From Canada, México, and the United States of America, in the Hastriter Collecton (Brigham Young University)

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