Results 21 to 30 of about 1,725 (169)

Detección molecular de Rickettsia bellii en garrapatas Ixodes loricatus (Acari: Ixodidae) asociadas a roedores de la provincia de Buenos Aires, Argentina [PDF]

open access: yesRevista de la Sociedad Entomológica Argentina, 2020
The aim of this study was the detection of Rickettsia in ticks of sigmodontine rodents from Northeastern Buenos Aires province, Argentina. A total of 222 rodents were captured collecting 10 ticks identified as Ixodes loricatus Neumann, which were ...
Balcazar, Dario Emmanuel   +4 more
core   +3 more sources

Effect of environmental variables on the abundance of Amblyomma ticks, potential vectors of Rickettsia parkeri in central Brazil. [PDF]

open access: yesPLoS ONE
Amblyomma ticks are vectors of both Rickettsia rickettsii and R. parkeri in the Americas, where capybaras (Hydrochoerus hydrochaeris) are the main hosts in urban areas, thus contributing to the transmission of spotted fever.
Isadora R C Gomes   +10 more
doaj   +2 more sources

Rickettsia bellii infecting Amblyomma sabanerae ticks in El Salvador. [PDF]

open access: yesPathog Glob Health, 2012
Four Amblyomma sabanerae ticks collected from a turtle (Kinosternon sp.) in San Miguel, El Salvador, were found by molecular analysis to be infected by Rickettsia bellii. We provide the first report of Rickettsia bellii in Central America, and the first report of a Rickettsia species in El Salvador.
Barbieri AR, Romero L, Labruna MB.
europepmc   +4 more sources

Development of a Rickettsia bellii-Specific TaqMan Assay Targeting the Citrate Synthase Gene. [PDF]

open access: yesJ Med Entomol, 2016
Rickettsia bellii is a rickettsial species of unknown pathogenicity that infects argasid and ixodid ticks throughout the Americas. Many molecular assays used to detect spotted fever group (SFG) Rickettsia species do not detect R. bellii, so that infection with this bacterium may be concealed in tick populations when assays are used that screen ...
Hecht JA   +5 more
europepmc   +4 more sources

Transcriptional Analysis of the Conjugal Transfer Genes of Rickettsia bellii RML 369-C. [PDF]

open access: yesPLoS One, 2015
Rickettsia bellii is an obligate intracellular bacterium that is one of the few rickettsiae that encode a complete set of conjugative transfer (tra) genes involved in bacterial conjugation and has been shown to exhibit pili-like structures. The reductive genomes of rickettsiae beg the question whether the tra genes are nonfunctional or functioning to ...
Heu CC   +3 more
europepmc   +5 more sources

Detection of Rickettsia bellii and Rickettsia amblyommii in Amblyomma longirostre (Acari: Ixodidae) from Bahia state, Northeast Brazil. [PDF]

open access: yesBraz J Microbiol, 2015
Studies investigating rickettsial infections in ticks parasitizing wild animals in the Northeast region of Brazil have been confined to the detection of Rickettsia amblyommii in immature stages of Amblyomma longirostre collected from birds in the state of Bahia, and in immatures and females of Amblyomma auricularium collected from the striped hog-nosed
McIntosh D   +6 more
europepmc   +5 more sources

DETECCIÓN MOLECULAR DE Rickettsia bellii EN Amblyomma rotundatum Koch 1884 (IXODIDA: IXODIDAE) RECOLECTADA DE Rhinella marina L., 1758 (ANURA: BUFONIDAE) EN PANAMÁ

open access: yesTecnociencia, 2019
Se presenta el hallazgo de la bacteria Rickettsia bellii en la garrapata Amblyomma rotundatum en Panamá.
Maria Ogrzewalska, Sergio Bermúdez C.
doaj   +1 more source

Motility characteristics are altered for Rickettsia bellii transformed to overexpress a heterologous rickA gene. [PDF]

open access: yesAppl Environ Microbiol, 2014
ABSTRACT The rickettsial protein RickA activates host cell factors associated with the eukaryotic actin cytoskeleton and is likely involved with rickettsial host cell binding and infection and the actin-based motility of spotted fever group rickettsiae.
Oliver JD   +4 more
europepmc   +4 more sources

Rickettsia association with two Macrolophus (Heteroptera: Miridae) species: A comparative study of phylogenies and within-host localization patterns

open access: yesFrontiers in Microbiology, 2023
Many arthropods host bacterial symbionts, some of which are known to influence host nutrition and diet breadth. Omnivorous bugs of the genus Macrolophus (Heteroptera: Miridae) are mainly predatory, but may also feed on plants. The species M. pygmaeus and
Maria Dally   +7 more
doaj   +1 more source

High Prevalence of Rickettsia bellii in Mosquitoes From Eastern China

open access: yesJournal of Medical Entomology, 2021
Abstract Mosquitoes are the most important vectors carrying significant numbers of human pathogens. Recent studies implicated that mosquitoes play an important role in circulation and transmission of multiple Rickettsia species. In this study, Rickettsia bellii was identified in four mosquito species (Culex pipiens, C. tritaeniorhynchus,
Feng Li   +8 more
openaire   +2 more sources

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