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dc.contributor.author
Albornoz, F.
dc.contributor.author
Teste, Francois Philippe
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dc.contributor.author
Lambers, H.
dc.contributor.author
Bunce, M.
dc.contributor.author
Murray, Dáithí C.
dc.contributor.author
White, Nicole E.
dc.contributor.author
Laliberté, E.
dc.date.available
2024-05-06T15:30:45Z
dc.date.issued
2015
dc.identifier.citation
Changes in ectomycorrhizal fungal community composition and diversity along a two-million year coastal dune chronosequence in a biodiversity hotspot; Eighth International Conference on Mycorrhiza (ICOM8): Mycorrhizal Integration Across Continents & Scales; Flagstaff; Estados Unidos; 2015; 5-5
dc.identifier.uri
http://hdl.handle.net/11336/234612
dc.description.abstract
Ectomycorrhizal (ECM) fungi enhance plant nitrogen (N) and phosphorus (P) acquisition. During long-term soil and ecosystem development, plant growth shifts from being N-limited to P-limited. However, how community composition and diversity of ECM fungi change during ecosystem development remains unknown. We studied ECM communities and diversity along a two million year Australian dune chronosequence, which shows a clear shift from N- to P-limitation of plant growth with increasing soil age. We hypothesised that ECM community composition strongly varies along the chronosequence, reflecting soil properties, and that diversity increases during pedogenesis. We grew two ECM plant species in soils collected from five distinct chronosequence stages, and quantified ECM operational taxonomy units (OTU) and diversity on roots using next-generation sequencing. To distinguish changes in ECM community composition due to soil properties vs ECM inoculum, we used three soil treatments: i) unaltered soil from each stage (?as is?), ii) triple-pasteurised, mixed soil from all five stages, with addition of live soil inoculum from each particular stage (?specific inoculum?), and iii) triple-pasteurised soil from particular stages, with addition of mixed live inoculum from all five stages (?average inoculum?). We obtained 175 unique ECM OTUs. ECM differed considerably among chronosequence stages in the ?as is? treatment, and these differences were associated with shifts in soil pH and nutrients. Furthermore, OTU richness declined with soil age in the ?as is? treatment. In contrast, there were no differences in ECM community composition or richness in the other two soil treatments. We suggest that strong changes in ECM community composition and diversity along this chronosequence do not simply reflect differences in soil abiotic properties or ECM inoculum, but reflect complex long-term interactions between these factors. Finally, we surmise that the decline in OTU richness is due to few ECM species being effective at acquiring P from severely P-impoverished soils.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Northern Arizona University
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ECTOMYCORRHIZAL FUNGI
dc.subject
PHOSPHORUS
dc.subject
SOIL AGE
dc.subject
CHRONOSEQUENCE
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Changes in ectomycorrhizal fungal community composition and diversity along a two-million year coastal dune chronosequence in a biodiversity hotspot
dc.type
info:eu-repo/semantics/publishedVersion
dc.type
info:eu-repo/semantics/conferenceObject
dc.type
info:ar-repo/semantics/documento de conferencia
dc.date.updated
2024-04-11T21:25:03Z
dc.journal.pagination
5-5
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Flagstaff
dc.description.fil
Fil: Albornoz, F.. No especifíca;
dc.description.fil
Fil: Teste, Francois Philippe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; Argentina
dc.description.fil
Fil: Lambers, H.. No especifíca;
dc.description.fil
Fil: Bunce, M.. No especifíca;
dc.description.fil
Fil: Murray, Dáithí C.. No especifíca;
dc.description.fil
Fil: White, Nicole E.. No especifíca;
dc.description.fil
Fil: Laliberté, E.. No especifíca;
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://mycorrhizas.org/icom-8-highlights/
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Autor
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Autor
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dc.coverage
Internacional
dc.type.subtype
Conferencia
dc.description.nombreEvento
Eighth International Conference on Mycorrhiza (ICOM8): Mycorrhizal Integration Across Continents & Scales
dc.date.evento
2015-08-03
dc.description.ciudadEvento
Flagstaff
dc.description.paisEvento
Estados Unidos
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dc.type.publicacion
Book
dc.description.institucionOrganizadora
International Mycorrhiza Society
dc.source.libro
Abstracts from The Eighth International Conference on Mycorrhiza (ICOM8)
dc.date.eventoHasta
2015-08-07
dc.type
Conferencia
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