Novel Symbiotic Association Between Euwallacea Ambrosia Beetle and Fusarium Fungus on Fig Trees in Japan

Ficus carica plantations in Japan were first reported to be infested by an ambrosia beetle species, identified as Euwallacea interjectus, in 1996. The purpose of this study was to determine the symbiotic fungi of female adults of E. interjectus emerging from F. carica trees infected with fig wilt di...

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Main Authors: Zi-Ru Jiang, Hayato Masuya, Hisashi Kajimura
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-09-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2021.725210/full
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author Zi-Ru Jiang
Hayato Masuya
Hisashi Kajimura
author_facet Zi-Ru Jiang
Hayato Masuya
Hisashi Kajimura
author_sort Zi-Ru Jiang
collection DOAJ
description Ficus carica plantations in Japan were first reported to be infested by an ambrosia beetle species, identified as Euwallacea interjectus, in 1996. The purpose of this study was to determine the symbiotic fungi of female adults of E. interjectus emerging from F. carica trees infected with fig wilt disease (FWD). Dispersal adults (51 females) of E. interjectus, which were collected from logs of an infested fig tree in Hiroshima Prefecture, Western Japan, were separated into three respective body parts (head, thorax, and abdomen) and used for fungal isolation. Isolated fungi were identified based on the morphological characteristics and DNA sequence data. Over 13 species of associated fungi were detected, of which a specific fungus, Fusarium kuroshium, was dominant in female head (including oral mycangia). The plant-pathogenic fungus of FWD, Ceratocystis ficicola, was not observed within any body parts of E. interjectus. We further discussed the relationship among E. interjectus and its associated fungi in fig tree.
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spelling doaj.art-19e5540154274e4a93addfb688f185252022-12-21T21:59:43ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2021-09-011210.3389/fmicb.2021.725210725210Novel Symbiotic Association Between Euwallacea Ambrosia Beetle and Fusarium Fungus on Fig Trees in JapanZi-Ru Jiang0Hayato Masuya1Hisashi Kajimura2Laboratory of Forest Protection, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, JapanDepartment of Forest Microbiology, Forestry and Forest Products Research Institute (FFPRI), Tsukuba, JapanLaboratory of Forest Protection, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, JapanFicus carica plantations in Japan were first reported to be infested by an ambrosia beetle species, identified as Euwallacea interjectus, in 1996. The purpose of this study was to determine the symbiotic fungi of female adults of E. interjectus emerging from F. carica trees infected with fig wilt disease (FWD). Dispersal adults (51 females) of E. interjectus, which were collected from logs of an infested fig tree in Hiroshima Prefecture, Western Japan, were separated into three respective body parts (head, thorax, and abdomen) and used for fungal isolation. Isolated fungi were identified based on the morphological characteristics and DNA sequence data. Over 13 species of associated fungi were detected, of which a specific fungus, Fusarium kuroshium, was dominant in female head (including oral mycangia). The plant-pathogenic fungus of FWD, Ceratocystis ficicola, was not observed within any body parts of E. interjectus. We further discussed the relationship among E. interjectus and its associated fungi in fig tree.https://www.frontiersin.org/articles/10.3389/fmicb.2021.725210/fullambrosia Fusarium cladeEuwallacea interjectusfig wilt diseaseFusarium kuroshiumFusarium solani species complexmulti-gene phylogeny
spellingShingle Zi-Ru Jiang
Hayato Masuya
Hisashi Kajimura
Novel Symbiotic Association Between Euwallacea Ambrosia Beetle and Fusarium Fungus on Fig Trees in Japan
Frontiers in Microbiology
ambrosia Fusarium clade
Euwallacea interjectus
fig wilt disease
Fusarium kuroshium
Fusarium solani species complex
multi-gene phylogeny
title Novel Symbiotic Association Between Euwallacea Ambrosia Beetle and Fusarium Fungus on Fig Trees in Japan
title_full Novel Symbiotic Association Between Euwallacea Ambrosia Beetle and Fusarium Fungus on Fig Trees in Japan
title_fullStr Novel Symbiotic Association Between Euwallacea Ambrosia Beetle and Fusarium Fungus on Fig Trees in Japan
title_full_unstemmed Novel Symbiotic Association Between Euwallacea Ambrosia Beetle and Fusarium Fungus on Fig Trees in Japan
title_short Novel Symbiotic Association Between Euwallacea Ambrosia Beetle and Fusarium Fungus on Fig Trees in Japan
title_sort novel symbiotic association between euwallacea ambrosia beetle and fusarium fungus on fig trees in japan
topic ambrosia Fusarium clade
Euwallacea interjectus
fig wilt disease
Fusarium kuroshium
Fusarium solani species complex
multi-gene phylogeny
url https://www.frontiersin.org/articles/10.3389/fmicb.2021.725210/full
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