Arbuscular mycorrhizae of dominant plant species in Yungas forests, Argentina

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In Argentina the Yungas forests are among the ecosystems most affected by human activity, with loss of biodiversity. To assess the arbuscular mycorrhizal (AM) colonization and the arbuscular mycorrhizal fungi (AMF) spore numbers in these ecosystems, the roots of the most dominant native plants (one...

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Autores principales: Becerra, Alejandra Gabriela, Cabello, Marta Noemí, Zak, Marcelo Román, Bartoloni, Norberto Jose
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Ciencias Naturales
Alnus forests
Am intraradical structures
Colonization-spore numbers correlation
Montane cloud forest
Seasonality
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/100982
https://ri.conicet.gov.ar/11336/24324
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-100982
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Alnus forests
Am intraradical structures
Colonization-spore numbers correlation
Montane cloud forest
Seasonality
spellingShingle Ciencias Naturales
Alnus forests
Am intraradical structures
Colonization-spore numbers correlation
Montane cloud forest
Seasonality
Becerra, Alejandra Gabriela
Cabello, Marta Noemí
Zak, Marcelo Román
Bartoloni, Norberto Jose
Arbuscular mycorrhizae of dominant plant species in Yungas forests, Argentina
topic_facet Ciencias Naturales
Alnus forests
Am intraradical structures
Colonization-spore numbers correlation
Montane cloud forest
Seasonality
description In Argentina the Yungas forests are among the ecosystems most affected by human activity, with loss of biodiversity. To assess the arbuscular mycorrhizal (AM) colonization and the arbuscular mycorrhizal fungi (AMF) spore numbers in these ecosystems, the roots of the most dominant native plants (one tree, Alnus acuminata; three herbaceous, Duchesnea indica, Oxalis conorrhiza, Trifolium aff. repens; and one shrub, Sambucus peruviana) were studied throughout the year from two sites of Yungas forests. Assessments of mycorrhizal colonization (percent root length, intraradical structures) were made by washing and staining the roots. Soil samples of each plant species were pooled and subsamples were obtained to determine AM spore numbers. The herbaceous species formed both Arum- and Paris-type morphologies, whereas the tree and the shrub species formed respectively single structural types of Arum-and Paris-type. AM colonization, intraradical fungi structures and AMF spore numbers displayed variation in species, seasons and sites. D. indica showed the highest AM colonization, whereas the highest spore numbers was observed in the rhizosphere of A. acuminata. No correlation was observed between spore numbers and root length percentage colonized by AM fungi. Results of this study showed that Alnus acuminata is facultatively AM. The AM colonization, intraradical fungi structures and AMF spore numbers varied in species depending on phenological, climatic and edaphic conditions.
format Articulo
Articulo
author Becerra, Alejandra Gabriela
Cabello, Marta Noemí
Zak, Marcelo Román
Bartoloni, Norberto Jose
author_facet Becerra, Alejandra Gabriela
Cabello, Marta Noemí
Zak, Marcelo Román
Bartoloni, Norberto Jose
author_sort Becerra, Alejandra Gabriela
title Arbuscular mycorrhizae of dominant plant species in Yungas forests, Argentina
title_short Arbuscular mycorrhizae of dominant plant species in Yungas forests, Argentina
title_full Arbuscular mycorrhizae of dominant plant species in Yungas forests, Argentina
title_fullStr Arbuscular mycorrhizae of dominant plant species in Yungas forests, Argentina
title_full_unstemmed Arbuscular mycorrhizae of dominant plant species in Yungas forests, Argentina
title_sort arbuscular mycorrhizae of dominant plant species in yungas forests, argentina
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/100982
https://ri.conicet.gov.ar/11336/24324
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AT zakmarceloroman arbuscularmycorrhizaeofdominantplantspeciesinyungasforestsargentina
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bdutipo_str Repositorios
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