Susceptibility of winter tick larvae and eggs to entomopathogenic fungi - Beauveria bassiana, Beauveria caledonica, Metarhizium anisopliae, and Scopulariopsis brevicaulis
An isolate of the soil fungus Scopulariopsis brevicaulis was identified from the surface of female winter ticks (Dermacentor albipictus) collected from recently dead moose (Alces alces) calves in New Hampshire in the northeastern United States. It was the sole isolate, and it matched with 98% nucITS...
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Lakehead University
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ftdoajarticles:oai:doaj.org/article:0d50c126dfc74a10bc1753ba022d1d2f 2023-05-15T13:12:53+02:00 Susceptibility of winter tick larvae and eggs to entomopathogenic fungi - Beauveria bassiana, Beauveria caledonica, Metarhizium anisopliae, and Scopulariopsis brevicaulis Jay A. Yoder Peter J. Pekins Blake W. Nelson Christian R. Randazzo Brett P. Siemon 2017-01-01T00:00:00Z https://doaj.org/article/0d50c126dfc74a10bc1753ba022d1d2f EN eng Lakehead University http://alcesjournal.org/index.php/alces/article/view/179/250 https://doaj.org/toc/0835-5851 0835-5851 https://doaj.org/article/0d50c126dfc74a10bc1753ba022d1d2f Alces, Vol 53, Pp 41-51 (2017) Alces alces Dermacentor albipictus moose pathogenic fungi Scopulariopsis brevicaulis survival water balance winter ticks Biology (General) QH301-705.5 Ecology QH540-549.5 article 2017 ftdoajarticles 2022-12-31T03:00:14Z An isolate of the soil fungus Scopulariopsis brevicaulis was identified from the surface of female winter ticks (Dermacentor albipictus) collected from recently dead moose (Alces alces) calves in New Hampshire in the northeastern United States. It was the sole isolate, and it matched with 98% nucITS similarity (molecular systematics Blast match) to S. brevicaulis species from soil and other tick species. Inoculation of tick larvae and eggs with 108 spores/mL + 0.05% Tween (aqueous inoculum) resulted in mortality, reduced survival time, and recovery of S. brevicaulis from within tick tissues. Rapid water loss and death from dehydration were the pathogenic consequences of the fungal infection. Three entomopathogenic fungal isolates from laboratory culture (Beauveria bassiana, B. caledonica, and Metarhizium anisopliae) inoculated concurrently at the same dose, were slightly less pathogenic to eggs than larvae of winter ticks. We conclude that S. brevicaulis imposes a limitation on the freeliving stages of the winter tick population in specific environmental conditions, but commercial fungal treatments as used in local situations to control ticks, are impractical as a means of controlling winter tick density across moose habitats. Article in Journal/Newspaper Alces alces Directory of Open Access Journals: DOAJ Articles |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Alces alces Dermacentor albipictus moose pathogenic fungi Scopulariopsis brevicaulis survival water balance winter ticks Biology (General) QH301-705.5 Ecology QH540-549.5 |
spellingShingle |
Alces alces Dermacentor albipictus moose pathogenic fungi Scopulariopsis brevicaulis survival water balance winter ticks Biology (General) QH301-705.5 Ecology QH540-549.5 Jay A. Yoder Peter J. Pekins Blake W. Nelson Christian R. Randazzo Brett P. Siemon Susceptibility of winter tick larvae and eggs to entomopathogenic fungi - Beauveria bassiana, Beauveria caledonica, Metarhizium anisopliae, and Scopulariopsis brevicaulis |
topic_facet |
Alces alces Dermacentor albipictus moose pathogenic fungi Scopulariopsis brevicaulis survival water balance winter ticks Biology (General) QH301-705.5 Ecology QH540-549.5 |
description |
An isolate of the soil fungus Scopulariopsis brevicaulis was identified from the surface of female winter ticks (Dermacentor albipictus) collected from recently dead moose (Alces alces) calves in New Hampshire in the northeastern United States. It was the sole isolate, and it matched with 98% nucITS similarity (molecular systematics Blast match) to S. brevicaulis species from soil and other tick species. Inoculation of tick larvae and eggs with 108 spores/mL + 0.05% Tween (aqueous inoculum) resulted in mortality, reduced survival time, and recovery of S. brevicaulis from within tick tissues. Rapid water loss and death from dehydration were the pathogenic consequences of the fungal infection. Three entomopathogenic fungal isolates from laboratory culture (Beauveria bassiana, B. caledonica, and Metarhizium anisopliae) inoculated concurrently at the same dose, were slightly less pathogenic to eggs than larvae of winter ticks. We conclude that S. brevicaulis imposes a limitation on the freeliving stages of the winter tick population in specific environmental conditions, but commercial fungal treatments as used in local situations to control ticks, are impractical as a means of controlling winter tick density across moose habitats. |
format |
Article in Journal/Newspaper |
author |
Jay A. Yoder Peter J. Pekins Blake W. Nelson Christian R. Randazzo Brett P. Siemon |
author_facet |
Jay A. Yoder Peter J. Pekins Blake W. Nelson Christian R. Randazzo Brett P. Siemon |
author_sort |
Jay A. Yoder |
title |
Susceptibility of winter tick larvae and eggs to entomopathogenic fungi - Beauveria bassiana, Beauveria caledonica, Metarhizium anisopliae, and Scopulariopsis brevicaulis |
title_short |
Susceptibility of winter tick larvae and eggs to entomopathogenic fungi - Beauveria bassiana, Beauveria caledonica, Metarhizium anisopliae, and Scopulariopsis brevicaulis |
title_full |
Susceptibility of winter tick larvae and eggs to entomopathogenic fungi - Beauveria bassiana, Beauveria caledonica, Metarhizium anisopliae, and Scopulariopsis brevicaulis |
title_fullStr |
Susceptibility of winter tick larvae and eggs to entomopathogenic fungi - Beauveria bassiana, Beauveria caledonica, Metarhizium anisopliae, and Scopulariopsis brevicaulis |
title_full_unstemmed |
Susceptibility of winter tick larvae and eggs to entomopathogenic fungi - Beauveria bassiana, Beauveria caledonica, Metarhizium anisopliae, and Scopulariopsis brevicaulis |
title_sort |
susceptibility of winter tick larvae and eggs to entomopathogenic fungi - beauveria bassiana, beauveria caledonica, metarhizium anisopliae, and scopulariopsis brevicaulis |
publisher |
Lakehead University |
publishDate |
2017 |
url |
https://doaj.org/article/0d50c126dfc74a10bc1753ba022d1d2f |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
Alces, Vol 53, Pp 41-51 (2017) |
op_relation |
http://alcesjournal.org/index.php/alces/article/view/179/250 https://doaj.org/toc/0835-5851 0835-5851 https://doaj.org/article/0d50c126dfc74a10bc1753ba022d1d2f |
_version_ |
1766254696971894784 |