Armillaria root diseases of diverse trees in wide-spread global regions

Kim, Mee-Sook; Heinzelmann, Renate; Labbé, Frédéric; Ota, Yuko; Elías-Román, Rubén Damián; Pildain, María Belén; Stewart, Jane E.; Woodward, Stephen; Klopfenstein, Ned B.

doi:10.1016/b978-0-323-85042-1.00004-5

Cited by 6 publications

(26 citation statements)

References 112 publications

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“…However, all Armillaria species can also feed on dead wood and thus play an important ecological role as decomposers in woody ecosystems (Baumgartner et al, 2011; Heinzelmann et al, 2019). Of the more than 40 described species (Kim et al, 2022), five Armillaria and two Desarmillaria fungi occur in Europe (Guillaumin et al, 1993; Marxmüller & Guillaumin, 2005). They include Armillaria mellea and Armillaria ostoyae , which are important primary pathogens (infecting healthy hosts) and cause significant mortality and economic losses not only in forests, fruit tree plantations, orchards and vineyards but also in urban green spaces such as parks and gardens throughout the Northern Hemisphere (Cromey et al, 2020; Guillaumin et al, 1989; Guillaumin et al, 1993; Kile et al, 1991).…”

Section: Introductionmentioning

confidence: 99%

Decoding the RNA virome of the tree parasite Armillaria provides new insights into the viral community of soil‐borne fungi

Shamsi,

Heinzelmann,

Ulrich

et al. 2024

Environmental Microbiology

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The globally distributed basidiomycete genus Armillaria includes wood decomposers that can act as opportunistic parasites, causing deadly root rot on woody plants. To test whether RNA viruses are involved in this opportunistic behaviour, a large isolate collection of five Armillaria species collected over 40 years in Switzerland from trees, dead wood and soil was analysed. De novo assembly of RNA‐Seq data revealed 21 viruses, 14 of which belong to putative new species. Two dsRNA viruses and an unclassified Tymovirales are formally described for the first time for Armillaria. One mitovirus occurred with a high prevalence of 71.1%, while all other viruses were much less prevalent (0.6%–16.9%). About half of all viruses were found only in one fungal species, others occurred in 2–6 fungal species. Co‐infections of 2–7 viruses per isolate were not uncommon (34.9%), and most viruses persisted circulating within fungal populations for decades. Some viruses were related to viruses associated with other Armillaria species, supporting the hypothesis that virus transmission can occur between different fungal species. Although no specific correlation between viruses and the fungal trophic strategy was found, this study opens new insights into viral diversity hidden in the soil microbiome.

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Section: Introductionmentioning

confidence: 99%

Decoding the RNA virome of the tree parasite Armillaria provides new insights into the viral community of soil‐borne fungi

Shamsi,

Heinzelmann,

Ulrich

et al. 2024

Environmental Microbiology

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“…Within the Basidiomycota (Agaricomycetes, Agaricales, and Physalacriaceae), Armillaria is well known as a cause of Armillaria root disease of diverse woody plants that can result in major growth losses (decreased C sequestration) and mortality of forest/horticultural trees. However, pathogenic Armillaria can also provide ecological benefits, such as creating openings for forest regeneration by eliminating maladapted trees, augmenting forest succession, and providing wildlife habitats [ 1 , 2 , 3 , 4 ]. Armillaria species also display diverse ecological functions, such as a “white-rot” decomposer and recycler of organic matter, potential in situ biological control agent against an Armillaria pathogen [ 5 ], mycorrhizal symbiont of orchids in eastern Asia [ 6 , 7 , 8 ], and symbiotic host or parasite of other fungi [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Armillaria altimontana in North America: Biology and Ecology

Kim,

Hanna,

McDonald

et al. 2023

JoF

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Armillaria altimontana is a fungus (Basidiomycota, Agaricomycetes, Agaricales, and Physalacriaceae) that is generally considered as a weak/opportunistic pathogen or saprophyte on many tree hosts. It widely occurs across the northwestern USA to southern British Columbia, Canada, but relatively little is known about its ecological role in the diverse forest ecosystems where it occurs. This review summarizes the biology and ecology of A. altimontana, including its identification, life cycle, distribution, host associations, and bioclimatic models under climate change.

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“…Accurate identification of Armillaria and Desarmillaria species is critical because these species display diverse ecological behaviors and occupy disparate geographic areas. For example, these genera contain species that vary in pathogenicity and virulence (Cleary, van der Kamp, & Morrison, 2012;Kim et al, 2022; Nowakowska orquídeas (Gastrodia elata Blume) cultivadas con fines medicinales (Guo, Wang, Xue, Zhao, & Yang, 2016) y de otros hongos (Polyporus umbellatus [Pers.]) (Xing, Men, & Guo, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Esta última incluye especies sin un anillo en el estípite del basidioma, agrupadas previamente en el género Armillaria (Fr.) Staude.Armillaria comprende aproximadamente 40 especies, algunas de las cuales fueron descritas recientemente(Elías-Román et al, 2018;Kim et al, 2022; Koch, Wilson, Séne, Henkel, & Aime, 2017).…”

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Nuevos hospederos para Desarmillaria caespitosa y Armillaria mexicana en Veracruz y Michoacán, México

Alvarado-Rosales¹,

Elías-Román²,

Saavedra-Romero³

et al. 2022

Rev Cha Se Cie For y del Amb

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Introducción: La identificación de las especies de Armillaria y Desarmillaria asociadas con la pudrición de raíces por Armillaria es importante para determinar estrategias de manejo, debido a su variación en patogenicidad y virulencia. Objetivo: Identificar las especies de Desarmillaria/Armillaria asociadas con árboles de litchi (Litchi chinensis Sonn.), aguacate (Persea americana Mill.) y pino (Pinus sp.) con síntomas y signos de la pudrición de raíces por Armillaria.Materiales y métodos: Se colectaron muestras con signos y síntomas de la pudrición de raíces por Armillaria en árboles de litchi en Veracruz, en tres huertos de aguacate y en una zona forestal en Michoacán. Ocho aislamientos fúngicos se identificaron mediante la secuenciación del gen factor de elongación 1-alpha (tef1).Resultados y Discusión: Con base en las secuencias de tef1, tres aislamientos de árboles de litchi en Veracruz se identificaron como Desarmillaria caespitosa; cuatro aislamientos de árboles de aguacate y uno de pino en Michoacán se identificaron como Armillaria mexicana. Los aislamientos fúngicos están depositados en la colección de hongos del Servicio Forestal del USDA, RMRS, Moscow, Idaho, EUA y las secuencias del tef1 están depositadas en el GenBank.Conclusion: Este trabajo constituye los primeros reportes de Desarmillaria caespitosa en litchi en Veracruz y Armillaria mexicana en aguacate y pino en Michoacán, México.

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Armillaria root diseases of diverse trees in wide-spread global regions

Cited by 6 publications

References 112 publications

Decoding the RNA virome of the tree parasite Armillaria provides new insights into the viral community of soil‐borne fungi

Decoding the RNA virome of the tree parasite Armillaria provides new insights into the viral community of soil‐borne fungi

Armillaria altimontana in North America: Biology and Ecology

Nuevos hospederos para Desarmillaria caespitosa y Armillaria mexicana en Veracruz y Michoacán, México

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