Fungal community associated with adults of the chestnut gall wasp Dryocosmus kuriphilus after emergence from galls: Taxonomy and functional ecology

The diversity of the fungal community associated with adults of Dryocosmus kuriphilus following emergence was examined using HTS analysis. Ascomycota dominated the fungal core-biome community. The functional guilds of the 90 taxa forming the core-biome were assessed, demonstrating three main groups:...

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Bibliographic Details
Published in:Fungal biology 2019-12, Vol.123 (12), p.905-912
Main Authors: Morales-Rodriguez, Carmen, Sferrazza, Ivano, Aleandri, MariaPia, Dalla Valle, Matteo, Mazzetto, Tommaso, Speranza, Stefano, Contarini, Mario, Vannini, Andrea
Format: Article
Language:English
Subjects:
Animals
Cluster Analysis
DNA, Fungal - chemistry
DNA, Fungal - genetics
DNA, Ribosomal - chemistry
DNA, Ribosomal - genetics
DNA, Ribosomal Spacer - chemistry
DNA, Ribosomal Spacer - genetics
Fagaceae - parasitology
Functional groups
Fungal diversity
Fungi - classification
Fungi - isolation & purification
High throughput sequencing
High-Throughput Nucleotide Sequencing
Insect-fungus interaction
Mycobiome
Phylogeny
Sequence Analysis, DNA
Wasps - growth & development
Wasps - microbiology
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Summary:The diversity of the fungal community associated with adults of Dryocosmus kuriphilus following emergence was examined using HTS analysis. Ascomycota dominated the fungal core-biome community. The functional guilds of the 90 taxa forming the core-biome were assessed, demonstrating three main groups: saprotrophs, plant pathogens and entomopathogens. Twenty-nine OTUs out of 90 were resolved to species level identifying 26 different fungal species. Among these species, many were cosmopolitan or previously recorded in Europe. Ten taxa were previously recorded on chestnut, including some recognized plant pathogens associated with foliage and green tissues such as Epicoccum nigrum, Gnomoniopsis castanea, Colletotrichum acutatum, Stromatoseptoria castaneicola, Ramularia endophylla. Beauveria bassiana; within the core microbiome, Fusarium larvarum represented the most abundant entomopathogenic species. Some of these species are known to impact directly or indirectly the vitality of the insects in the galls. The chestnut blight pathogen, Cryphonectria parasitica, was never found associated with D. kuriphilus. Based on the present study, an active role for D. kuriphilus as a vector of chestnut fungal endophyte/pathogens cannot be demonstrated but neither ruled out.
ISSN:1878-6146
1878-6162
DOI:10.1016/j.funbio.2019.09.009