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dc.contributor.author
Molina, Lucia
dc.contributor.author
Rajchenberg, Mario
dc.contributor.author
de Errasti, Andres
dc.contributor.author
Aime, Mary Catherine
dc.contributor.author
Pildain, María Belén
dc.date.available
2022-09-13T13:30:16Z
dc.date.issued
2020-04
dc.identifier.citation
Molina, Lucia; Rajchenberg, Mario; de Errasti, Andres; Aime, Mary Catherine; Pildain, María Belén; Sapwood-inhabiting mycobiota and Nothofagus tree mortality in Patagonia: diversity patterns according to tree species, plant compartment and health condition; Elsevier; Forest Ecology and Management; 462; 4-2020; 1-13
dc.identifier.issn
0378-1127
dc.identifier.uri
http://hdl.handle.net/11336/168498
dc.description.abstract
Temperate forests ecosystems are threatened by declines and diseases worldwide. Causes have been investigated during the last decades allowing, in some cases, to relate such deterioration to climate change or pathogens but, in many cases, causes have not yet been elucidated. In recent decades, a phenomenon of grouped mortality, whose etiology remains unknown, has been observed in the two most distributed Nothofagus species of North Patagonian forests. This study aimed to assess sapwood-inhabiting fungal diversity of N. dombeyi and N. pumilio trees in healthy and affected stands in order to determine whether health condition shape these fungal communities, to characterize such patterns and, to seek for the likely pathogens associated with tree damage. Seven sites in Los Alerces National Park (Chubut, Argentina), were sampled seasonally for two years. Eighty-eight fungal taxa were recovered and identified. Spatial heterogeneity across plant compartments was found, involving community composition and structure, with stem harbouring greater diversity than root. It was found that the sapwood in both Nothofagus species was inhabited by different fungal species, in high richness and showing different patterns according to health condition and plant compartment. Health condition was a stronger driver of N. dombeyi sapwood-inhabiting fungal community than it was for N. pumilio; the latter evidenced plant compartment as a stronger driver of such community. Nothofagus pumilio presented higher frequency of decomposition agents in both affected and healthy trees than it was in N. dombeyi, indicating a greater wood deterioration of its stands. More decomposition agents and potential pathogens have been found in symptomatic stands of N. dombeyi than in healthy stands, although their frequency patterns do not allow the inference of conclusions about the primary fungal agent causing tree mortality. Our findings suggest a secondary role of living-wood-inhabiting mycobiota in tree damage processes as an expression of tree stress caused by climatic factors.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ENDOPHYTES
dc.subject
FOREST DECLINE
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FUNGAL COMMUNITY
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LATENT PATHOGENS
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TEMPERATE FORESTS
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WATER STRESS
dc.subject.classification
Micología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Sapwood-inhabiting mycobiota and Nothofagus tree mortality in Patagonia: diversity patterns according to tree species, plant compartment and health condition
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-12T14:35:16Z
dc.journal.volume
462
dc.journal.pagination
1-13
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Molina, Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina
dc.description.fil
Fil: Rajchenberg, Mario. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina
dc.description.fil
Fil: de Errasti, Andres. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina
dc.description.fil
Fil: Aime, Mary Catherine. Purdue University; Estados Unidos
dc.description.fil
Fil: Pildain, María Belén. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina
dc.journal.title
Forest Ecology and Management
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0378112719322066
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.foreco.2020.117997
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