Proboscis infection route of Beauveria bassiana triggers early death of Anopheles mosquito

Abstract Entomopathogenic fungi are known to control vector mosquito populations. Thus, understanding the infection dynamics of entomopathogenic fungi is crucial for the effective control of insect pests such as mosquitoes. We investigated the dynamics of Beauveria bassiana s.l. 60-2 infection of An...

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Autores principales:	Minehiro Ishii, Hirotaka Kanuka, Athanase Badolo, N’Falé Sagnon, Wamdaogo M. Guelbeogo, Masanori Koike, Daigo Aiuchi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b09dc4a5db514ec8a284f758ad75783d
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spelling	oai:doaj.org-article:b09dc4a5db514ec8a284f758ad75783d2021-12-02T12:32:25ZProboscis infection route of Beauveria bassiana triggers early death of Anopheles mosquito10.1038/s41598-017-03720-x2045-2322https://doaj.org/article/b09dc4a5db514ec8a284f758ad75783d2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03720-xhttps://doaj.org/toc/2045-2322Abstract Entomopathogenic fungi are known to control vector mosquito populations. Thus, understanding the infection dynamics of entomopathogenic fungi is crucial for the effective control of insect pests such as mosquitoes. We investigated the dynamics of Beauveria bassiana s.l. 60-2 infection of Anopheles stephensi by exposing the mosquito to fungus-impregnated filter paper through two infection routes and then comparing the mortality and extent of infection. Fungal development was observed after using this inoculation method with both the tarsus route and the proboscis route, but early mosquito death occurred only after infection through the proboscis route. Fungal hyphae invaded almost all the tissues and organs before or after the death of the host, and fungal invasion of the brain was highly correlated with mortality. Moreover, although all mosquitoes that were alive at various time points after inoculation showed no fungal infection in the brain, fungal infection was detected in the brain in all dead mosquitoes. Our results suggest that fungal invasion of the brain represents one of the factors affecting mortality, and that the proboscis route of infection is critical for the early death of vector mosquitoes.Minehiro IshiiHirotaka KanukaAthanase BadoloN’Falé SagnonWamdaogo M. GuelbeogoMasanori KoikeDaigo AiuchiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Minehiro Ishii Hirotaka Kanuka Athanase Badolo N’Falé Sagnon Wamdaogo M. Guelbeogo Masanori Koike Daigo Aiuchi Proboscis infection route of Beauveria bassiana triggers early death of Anopheles mosquito
description	Abstract Entomopathogenic fungi are known to control vector mosquito populations. Thus, understanding the infection dynamics of entomopathogenic fungi is crucial for the effective control of insect pests such as mosquitoes. We investigated the dynamics of Beauveria bassiana s.l. 60-2 infection of Anopheles stephensi by exposing the mosquito to fungus-impregnated filter paper through two infection routes and then comparing the mortality and extent of infection. Fungal development was observed after using this inoculation method with both the tarsus route and the proboscis route, but early mosquito death occurred only after infection through the proboscis route. Fungal hyphae invaded almost all the tissues and organs before or after the death of the host, and fungal invasion of the brain was highly correlated with mortality. Moreover, although all mosquitoes that were alive at various time points after inoculation showed no fungal infection in the brain, fungal infection was detected in the brain in all dead mosquitoes. Our results suggest that fungal invasion of the brain represents one of the factors affecting mortality, and that the proboscis route of infection is critical for the early death of vector mosquitoes.
format	article
author	Minehiro Ishii Hirotaka Kanuka Athanase Badolo N’Falé Sagnon Wamdaogo M. Guelbeogo Masanori Koike Daigo Aiuchi
author_facet	Minehiro Ishii Hirotaka Kanuka Athanase Badolo N’Falé Sagnon Wamdaogo M. Guelbeogo Masanori Koike Daigo Aiuchi
author_sort	Minehiro Ishii
title	Proboscis infection route of Beauveria bassiana triggers early death of Anopheles mosquito
title_short	Proboscis infection route of Beauveria bassiana triggers early death of Anopheles mosquito
title_full	Proboscis infection route of Beauveria bassiana triggers early death of Anopheles mosquito
title_fullStr	Proboscis infection route of Beauveria bassiana triggers early death of Anopheles mosquito
title_full_unstemmed	Proboscis infection route of Beauveria bassiana triggers early death of Anopheles mosquito
title_sort	proboscis infection route of beauveria bassiana triggers early death of anopheles mosquito
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/b09dc4a5db514ec8a284f758ad75783d
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Proboscis infection route of Beauveria bassiana triggers early death of Anopheles mosquito

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