Vertical transmission of the entomopathogenic soil fungus Scopulariopsis brevicaulis as a contaminant of eggs in the winter tick, Dermacentor albipictus, collected from calf moose (New Hampshire, USA)
Moose naturally acquire soil fungi on their fur that are entomopathogenic to the winter tick, Dermacentor albipictus. Presumed to provide a measure of on-host tick control, it is unknown whether these soil fungi impact subsequent off-host stages of the tick. Eggs and resultant larvae originating fro...
Published in: | Mycology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Taylor & Francis Group
2019
|
Subjects: | |
Online Access: | https://doi.org/10.1080/21501203.2019.1600062 https://doaj.org/article/d298a323f34f4280bff13d8fe9368c07 |
id |
ftdoajarticles:oai:doaj.org/article:d298a323f34f4280bff13d8fe9368c07 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:d298a323f34f4280bff13d8fe9368c07 2023-05-15T13:12:56+02:00 Vertical transmission of the entomopathogenic soil fungus Scopulariopsis brevicaulis as a contaminant of eggs in the winter tick, Dermacentor albipictus, collected from calf moose (New Hampshire, USA) Jay A. Yoder Benjamin M. Rodell Lucas A. Klever Cameron J. Dobrotka Peter J. Pekins 2019-07-01T00:00:00Z https://doi.org/10.1080/21501203.2019.1600062 https://doaj.org/article/d298a323f34f4280bff13d8fe9368c07 EN eng Taylor & Francis Group http://dx.doi.org/10.1080/21501203.2019.1600062 https://doaj.org/toc/2150-1203 https://doaj.org/toc/2150-1211 2150-1203 2150-1211 doi:10.1080/21501203.2019.1600062 https://doaj.org/article/d298a323f34f4280bff13d8fe9368c07 Mycology, Vol 10, Iss 3, Pp 174-181 (2019) internal mycoflora endosymbiont elk tick horse tick alces alces united states Biology (General) QH301-705.5 Microbiology QR1-502 article 2019 ftdoajarticles https://doi.org/10.1080/21501203.2019.1600062 2022-12-31T02:08:33Z Moose naturally acquire soil fungi on their fur that are entomopathogenic to the winter tick, Dermacentor albipictus. Presumed to provide a measure of on-host tick control, it is unknown whether these soil fungi impact subsequent off-host stages of the tick. Eggs and resultant larvae originating from engorged, adult female winter ticks collected from dead calf moose (Alces alces) were used to investigate the presence and extent of fungal infection. Approximately 40% of eggs and larvae were infected, almost exclusively by the fungus Scopulariopsis brevicaulis (teleomorph Microascus brevicaulis: Microascaceae, Ascomycota). Eggs analysed on the day of oviposition and day of hatching had high frequency (40%) of S. brevicaulis, whereas the frequency in eggs harvested in utero was minimal (7%); therefore, exposure occurs pre-oviposition in the female’s genital chamber, not by transovarial transmission. At hatching, larvae emerge containing S. brevicaulis indicating transstadial transmission. Artificial infection by topical application of eggs and larvae with a large inoculum of S. brevicaulis spores caused rapid dehydration, marked mortality; pathogenicity was confirmed by Koch’s postulates. The high hatching success (>90%) and multi-month survival of larvae imply that S. brevicaulis is maintained as a natural pathobiont in winter ticks. Article in Journal/Newspaper Alces alces Directory of Open Access Journals: DOAJ Articles Mycology 10 3 174 181 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
internal mycoflora endosymbiont elk tick horse tick alces alces united states Biology (General) QH301-705.5 Microbiology QR1-502 |
spellingShingle |
internal mycoflora endosymbiont elk tick horse tick alces alces united states Biology (General) QH301-705.5 Microbiology QR1-502 Jay A. Yoder Benjamin M. Rodell Lucas A. Klever Cameron J. Dobrotka Peter J. Pekins Vertical transmission of the entomopathogenic soil fungus Scopulariopsis brevicaulis as a contaminant of eggs in the winter tick, Dermacentor albipictus, collected from calf moose (New Hampshire, USA) |
topic_facet |
internal mycoflora endosymbiont elk tick horse tick alces alces united states Biology (General) QH301-705.5 Microbiology QR1-502 |
description |
Moose naturally acquire soil fungi on their fur that are entomopathogenic to the winter tick, Dermacentor albipictus. Presumed to provide a measure of on-host tick control, it is unknown whether these soil fungi impact subsequent off-host stages of the tick. Eggs and resultant larvae originating from engorged, adult female winter ticks collected from dead calf moose (Alces alces) were used to investigate the presence and extent of fungal infection. Approximately 40% of eggs and larvae were infected, almost exclusively by the fungus Scopulariopsis brevicaulis (teleomorph Microascus brevicaulis: Microascaceae, Ascomycota). Eggs analysed on the day of oviposition and day of hatching had high frequency (40%) of S. brevicaulis, whereas the frequency in eggs harvested in utero was minimal (7%); therefore, exposure occurs pre-oviposition in the female’s genital chamber, not by transovarial transmission. At hatching, larvae emerge containing S. brevicaulis indicating transstadial transmission. Artificial infection by topical application of eggs and larvae with a large inoculum of S. brevicaulis spores caused rapid dehydration, marked mortality; pathogenicity was confirmed by Koch’s postulates. The high hatching success (>90%) and multi-month survival of larvae imply that S. brevicaulis is maintained as a natural pathobiont in winter ticks. |
format |
Article in Journal/Newspaper |
author |
Jay A. Yoder Benjamin M. Rodell Lucas A. Klever Cameron J. Dobrotka Peter J. Pekins |
author_facet |
Jay A. Yoder Benjamin M. Rodell Lucas A. Klever Cameron J. Dobrotka Peter J. Pekins |
author_sort |
Jay A. Yoder |
title |
Vertical transmission of the entomopathogenic soil fungus Scopulariopsis brevicaulis as a contaminant of eggs in the winter tick, Dermacentor albipictus, collected from calf moose (New Hampshire, USA) |
title_short |
Vertical transmission of the entomopathogenic soil fungus Scopulariopsis brevicaulis as a contaminant of eggs in the winter tick, Dermacentor albipictus, collected from calf moose (New Hampshire, USA) |
title_full |
Vertical transmission of the entomopathogenic soil fungus Scopulariopsis brevicaulis as a contaminant of eggs in the winter tick, Dermacentor albipictus, collected from calf moose (New Hampshire, USA) |
title_fullStr |
Vertical transmission of the entomopathogenic soil fungus Scopulariopsis brevicaulis as a contaminant of eggs in the winter tick, Dermacentor albipictus, collected from calf moose (New Hampshire, USA) |
title_full_unstemmed |
Vertical transmission of the entomopathogenic soil fungus Scopulariopsis brevicaulis as a contaminant of eggs in the winter tick, Dermacentor albipictus, collected from calf moose (New Hampshire, USA) |
title_sort |
vertical transmission of the entomopathogenic soil fungus scopulariopsis brevicaulis as a contaminant of eggs in the winter tick, dermacentor albipictus, collected from calf moose (new hampshire, usa) |
publisher |
Taylor & Francis Group |
publishDate |
2019 |
url |
https://doi.org/10.1080/21501203.2019.1600062 https://doaj.org/article/d298a323f34f4280bff13d8fe9368c07 |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
Mycology, Vol 10, Iss 3, Pp 174-181 (2019) |
op_relation |
http://dx.doi.org/10.1080/21501203.2019.1600062 https://doaj.org/toc/2150-1203 https://doaj.org/toc/2150-1211 2150-1203 2150-1211 doi:10.1080/21501203.2019.1600062 https://doaj.org/article/d298a323f34f4280bff13d8fe9368c07 |
op_doi |
https://doi.org/10.1080/21501203.2019.1600062 |
container_title |
Mycology |
container_volume |
10 |
container_issue |
3 |
container_start_page |
174 |
op_container_end_page |
181 |
_version_ |
1766254952655618048 |