Comparative analysis of the midgut microbiota of two natural tick vectors of Rickettsia rickettsii

Although the ticks Amblyomma sculptum and Amblyomma aureolatum are important vectors of Rickettsia rickettsii, causative agent of the life-threatening Rocky Mountain spotted fever, A. aureolatum is considerably more susceptible to infection than A. sculptum. As the microbiota can interfere with the...

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Main Authors: Pavanelo, Daniel Brisotto, Schröder, Nicolas C.H., Pin Viso, Natalia Daniela, Martins, Larissa A., Malossi, Camila Dantas, Galletti, Maria Fernanda B.M., Labruna, Marcelo B., Daffre, Sirlei, Farber, Marisa Diana, Fogaça, Andréa C.
Format: Artículo
Language:Inglés
Published: Elsevier 2020
Subjects:
Online Access:http://hdl.handle.net/20.500.12123/7745
https://www.sciencedirect.com/science/article/pii/S0145305X19305178
https://doi.org/10.1016/j.dci.2019.103606
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author Pavanelo, Daniel Brisotto
Schröder, Nicolas C.H.
Pin Viso, Natalia Daniela
Martins, Larissa A.
Malossi, Camila Dantas
Galletti, Maria Fernanda B.M.
Labruna, Marcelo B.
Daffre, Sirlei
Farber, Marisa Diana
Fogaça, Andréa C.
author_browse Daffre, Sirlei
Farber, Marisa Diana
Fogaça, Andréa C.
Galletti, Maria Fernanda B.M.
Labruna, Marcelo B.
Malossi, Camila Dantas
Martins, Larissa A.
Pavanelo, Daniel Brisotto
Pin Viso, Natalia Daniela
Schröder, Nicolas C.H.
author_facet Pavanelo, Daniel Brisotto
Schröder, Nicolas C.H.
Pin Viso, Natalia Daniela
Martins, Larissa A.
Malossi, Camila Dantas
Galletti, Maria Fernanda B.M.
Labruna, Marcelo B.
Daffre, Sirlei
Farber, Marisa Diana
Fogaça, Andréa C.
author_sort Pavanelo, Daniel Brisotto
collection INTA Digital
description Although the ticks Amblyomma sculptum and Amblyomma aureolatum are important vectors of Rickettsia rickettsii, causative agent of the life-threatening Rocky Mountain spotted fever, A. aureolatum is considerably more susceptible to infection than A. sculptum. As the microbiota can interfere with the colonization of arthropod midgut (MG) by pathogens, in the current study we analyzed the MG microbiota of both tick species. Our results revealed that the MG of A. aureolatum harbors a prominent microbiota, while A. sculptum does not. Remarkably, a significant reduction of the bacterial load was recorded in R. rickettsii-infected A. aureolatum. In addition, the taxonomy analysis of the MG bacterial community of A. aureolatum revealed a dominance of the genus Francisella, suggesting an endosymbiosis. This study is the first step in getting insights into the mechanisms underlying the interactions among Amblyomma species, their microbiota and R. rickettsii. Additional studies to better understand these mechanisms are required and may help the development of novel alternatives to block rickettsial transmission.
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institution Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina)
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spelling INTA77452020-08-20T13:23:13Z Comparative analysis of the midgut microbiota of two natural tick vectors of Rickettsia rickettsii Pavanelo, Daniel Brisotto Schröder, Nicolas C.H. Pin Viso, Natalia Daniela Martins, Larissa A. Malossi, Camila Dantas Galletti, Maria Fernanda B.M. Labruna, Marcelo B. Daffre, Sirlei Farber, Marisa Diana Fogaça, Andréa C. Rickettsia Vectores Relaciones Huésped Parásito Flora Microbiana Vectors Host Parasite Relations Microbial Flora Garrapatas Rickettsia rickettsii Microbiota Although the ticks Amblyomma sculptum and Amblyomma aureolatum are important vectors of Rickettsia rickettsii, causative agent of the life-threatening Rocky Mountain spotted fever, A. aureolatum is considerably more susceptible to infection than A. sculptum. As the microbiota can interfere with the colonization of arthropod midgut (MG) by pathogens, in the current study we analyzed the MG microbiota of both tick species. Our results revealed that the MG of A. aureolatum harbors a prominent microbiota, while A. sculptum does not. Remarkably, a significant reduction of the bacterial load was recorded in R. rickettsii-infected A. aureolatum. In addition, the taxonomy analysis of the MG bacterial community of A. aureolatum revealed a dominance of the genus Francisella, suggesting an endosymbiosis. This study is the first step in getting insights into the mechanisms underlying the interactions among Amblyomma species, their microbiota and R. rickettsii. Additional studies to better understand these mechanisms are required and may help the development of novel alternatives to block rickettsial transmission. Instituto de Biotecnología Fil: Pavanelo, Daniel Brisotto. University of São Paulo. Institute of Biomedical Sciences. Department of Parasitology; Brasil Fil: Schröder, Nicolas C.H. University of São Paulo. Institute of Biomedical Sciences. Department of Parasitology; Brasil Fil: Pin Viso, Natalia Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina Fil: Martins, Larissa A. University of São Paulo. Institute of Biomedical Sciences. Department of Parasitology; Brasil Fil: Malossi, Camila Dantas. University of São Paulo. Institute of Biomedical Sciences. Department of Parasitology; Brasil Fil: Galletti, Maria Fernanda B.M. University of São Paulo. Institute of Biomedical Sciences. Department of Parasitology; Brasil Fil: Labruna, Marcelo B. University of São Paulo. Faculty of Veterinary Medicine and Husbandry. Department of Preventive Veterinary Medicine and Animal Health; Brasil Fil: Daffre, Sirlei. University of São Paulo. Institute of Biomedical Sciences. Department of Parasitology; Brasil Fil: Farber, Marisa Diana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina Fil: Fogaça, Andréa C. University of São Paulo. Institute of Biomedical Sciences. Department of Parasitology; Brasil 2020-08-20T13:17:47Z 2020-08-20T13:17:47Z 2020-05 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/7745 https://www.sciencedirect.com/science/article/pii/S0145305X19305178 0145-305X https://doi.org/10.1016/j.dci.2019.103606 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Developmental & Comparative Immunology 106 : 103606 (May 2020)
spellingShingle Rickettsia
Vectores
Relaciones Huésped Parásito
Flora Microbiana
Vectors
Host Parasite Relations
Microbial Flora
Garrapatas
Rickettsia rickettsii
Microbiota
Pavanelo, Daniel Brisotto
Schröder, Nicolas C.H.
Pin Viso, Natalia Daniela
Martins, Larissa A.
Malossi, Camila Dantas
Galletti, Maria Fernanda B.M.
Labruna, Marcelo B.
Daffre, Sirlei
Farber, Marisa Diana
Fogaça, Andréa C.
Comparative analysis of the midgut microbiota of two natural tick vectors of Rickettsia rickettsii
title Comparative analysis of the midgut microbiota of two natural tick vectors of Rickettsia rickettsii
title_full Comparative analysis of the midgut microbiota of two natural tick vectors of Rickettsia rickettsii
title_fullStr Comparative analysis of the midgut microbiota of two natural tick vectors of Rickettsia rickettsii
title_full_unstemmed Comparative analysis of the midgut microbiota of two natural tick vectors of Rickettsia rickettsii
title_short Comparative analysis of the midgut microbiota of two natural tick vectors of Rickettsia rickettsii
title_sort comparative analysis of the midgut microbiota of two natural tick vectors of rickettsia rickettsii
topic Rickettsia
Vectores
Relaciones Huésped Parásito
Flora Microbiana
Vectors
Host Parasite Relations
Microbial Flora
Garrapatas
Rickettsia rickettsii
Microbiota
url http://hdl.handle.net/20.500.12123/7745
https://www.sciencedirect.com/science/article/pii/S0145305X19305178
https://doi.org/10.1016/j.dci.2019.103606
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