The Ambrosia Beetle Sueus niisimai (Scolytinae : Hyorrhynchini) is Associated with the Canker Disease Fungus Diatrypella japonica (Xylariales)

Ambrosia beetles in the subtribe Hyorrhynchini are one example of an entire ambrosia beetle lineage whose fungi have never been studied. Here, we identify one dominant fungus associated with a widespread Asian hyorrhynchine beetle Sueus niisimai. This fungus was consistently isolated from beetle gal...

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Veröffentlicht in:Plant disease. - 1997. - 104(2020), 12 vom: 03. Dez., Seite 3143-3150
1. Verfasser: Li, You (VerfasserIn)
Weitere Verfasser: Skelton, James, Adams, Sawyer, Hattori, Yukako, Smith, Matthew E, Hulcr, Jiri
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article Asia Diatrypaceae Hyorrhynchini ascomycete invasive pathogenicity tests sycamore symbiotic
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245 1 4 |a The Ambrosia Beetle Sueus niisimai (Scolytinae  |b Hyorrhynchini) is Associated with the Canker Disease Fungus Diatrypella japonica (Xylariales) 
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520 |a Ambrosia beetles in the subtribe Hyorrhynchini are one example of an entire ambrosia beetle lineage whose fungi have never been studied. Here, we identify one dominant fungus associated with a widespread Asian hyorrhynchine beetle Sueus niisimai. This fungus was consistently isolated from beetle galleries from multiple collections. Phylogenetic analyses of combined ITS rDNA and β-tubulin sequences identified the primary fungal symbiont as Diatrypella japonica Higuchi, Nikaido & Hattori (Diatrypaceae, Xylariales, Sordariomycetes), which was recently described as a pathogen of sycamore (Platanus spp.) in Japan. To assess the invasion potential of this beetle-fungus interaction into the U.S., we have investigated the pathogenicity of two D. japonica strains on four species of healthy landscape trees native to the southeastern United States. Only Shumard oak (Quercus shumardii) responded with lesions significantly greater than the control inoculations, but there was no observable dieback or tree mortality. Although disease symptoms were not as prominent as in previous studies of the same fungus in Japan, routine reisolation from the inoculation point suggests that this species is capable of colonizing healthy sapwood of several tree species. Our study shows that the geographical area of its distribution is broader in Asia and potentially includes many hosts of its polyphagous vector. We conclude that the Sueus-Diatrypella symbiosis has high invasion potential but low damage potential, at least on young trees during the growing season 
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650 4 |a Diatrypaceae 
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650 4 |a ascomycete 
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650 4 |a pathogenicity tests 
650 4 |a sycamore 
650 4 |a symbiotic 
700 1 |a Skelton, James  |e verfasserin  |4 aut 
700 1 |a Adams, Sawyer  |e verfasserin  |4 aut 
700 1 |a Hattori, Yukako  |e verfasserin  |4 aut 
700 1 |a Smith, Matthew E  |e verfasserin  |4 aut 
700 1 |a Hulcr, Jiri  |e verfasserin  |4 aut 
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