A foliar endophyte increases the diversity of phosphorus-solubilizing rhizospheric fungi and mycorrhizal colonization in the wild grass Bromus auleticus

Asexual Epichloë endophytes establish mutualistic symbioses with grasses, improve fitness of their hosts and modify the surrounding environment. To test the hypothesis that this symbiotic association increases the abundance and diversity of phosphate-solubilizing fungi (PSF), a pot experiment was co...

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Detalles Bibliográficos
Autores principales: Arrieta, Alejandro Matias, Iannone, Leopoldo Javier, Scervino, José Martín, Novas, Maria Victoria
Publicado: 2015
Materias:
Agriculture
Argentina
Bromus auleticus
Epichloë pampeana
Soil use
Symbiosis
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17545048_v17_n_p146_Arrieta
http://hdl.handle.net/20.500.12110/paper_17545048_v17_n_p146_Arrieta
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_17545048_v17_n_p146_Arrieta
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spelling paper:paper_17545048_v17_n_p146_Arrieta2023-06-08T16:28:49Z A foliar endophyte increases the diversity of phosphorus-solubilizing rhizospheric fungi and mycorrhizal colonization in the wild grass Bromus auleticus Arrieta, Alejandro Matias Iannone, Leopoldo Javier Scervino, José Martín Novas, Maria Victoria Agriculture Argentina Bromus auleticus Epichloë pampeana Soil use Symbiosis Asexual Epichloë endophytes establish mutualistic symbioses with grasses, improve fitness of their hosts and modify the surrounding environment. To test the hypothesis that this symbiotic association increases the abundance and diversity of phosphate-solubilizing fungi (PSF), a pot experiment was conducted combining two endophytic statuses: Epichloë-infected (E+) and non-infected (E-) Bromus auleticus plants, and two soil types collected from agricultural (A) and non-agricultural (NA) fields. Soil fungi were isolated at the beginning of the experiment and 12 months after the introduction of B. auleticus, and tested for their inorganic P (Pi)-solubilizing capability. Arbuscular mycorrhizal colonization in B. auleticus roots of E+ and E- plants was also analyzed. PSF abundance was affected by the endophytic status and by the type of soil; the highest value was detected in the E-NA treatment, followed by the E+A treatment. PSF diversity was higher in NA than in A soils and higher in soils treated with E+ than in those treated with E-. Arbuscular mycorrhizal fungi colonization was higher in E+ plants. We hypothesize that the positive association between Epichloë endophytes and mycorrhizal fungi with an increase in the PSF diversity would generate an increase in the phosphorus (P) available to plants. © 2015 Elsevier Ltd and The British Mycological Society. Fil:Arrieta, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Iannone, L.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Scervino, J.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Novas, M.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17545048_v17_n_p146_Arrieta http://hdl.handle.net/20.500.12110/paper_17545048_v17_n_p146_Arrieta
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Agriculture
Argentina
Bromus auleticus
Epichloë pampeana
Soil use
Symbiosis
spellingShingle Agriculture
Argentina
Bromus auleticus
Epichloë pampeana
Soil use
Symbiosis
Arrieta, Alejandro Matias
Iannone, Leopoldo Javier
Scervino, José Martín
Novas, Maria Victoria
A foliar endophyte increases the diversity of phosphorus-solubilizing rhizospheric fungi and mycorrhizal colonization in the wild grass Bromus auleticus
topic_facet Agriculture
Argentina
Bromus auleticus
Epichloë pampeana
Soil use
Symbiosis
description Asexual Epichloë endophytes establish mutualistic symbioses with grasses, improve fitness of their hosts and modify the surrounding environment. To test the hypothesis that this symbiotic association increases the abundance and diversity of phosphate-solubilizing fungi (PSF), a pot experiment was conducted combining two endophytic statuses: Epichloë-infected (E+) and non-infected (E-) Bromus auleticus plants, and two soil types collected from agricultural (A) and non-agricultural (NA) fields. Soil fungi were isolated at the beginning of the experiment and 12 months after the introduction of B. auleticus, and tested for their inorganic P (Pi)-solubilizing capability. Arbuscular mycorrhizal colonization in B. auleticus roots of E+ and E- plants was also analyzed. PSF abundance was affected by the endophytic status and by the type of soil; the highest value was detected in the E-NA treatment, followed by the E+A treatment. PSF diversity was higher in NA than in A soils and higher in soils treated with E+ than in those treated with E-. Arbuscular mycorrhizal fungi colonization was higher in E+ plants. We hypothesize that the positive association between Epichloë endophytes and mycorrhizal fungi with an increase in the PSF diversity would generate an increase in the phosphorus (P) available to plants. © 2015 Elsevier Ltd and The British Mycological Society.
author Arrieta, Alejandro Matias
Iannone, Leopoldo Javier
Scervino, José Martín
Novas, Maria Victoria
author_facet Arrieta, Alejandro Matias
Iannone, Leopoldo Javier
Scervino, José Martín
Novas, Maria Victoria
author_sort Arrieta, Alejandro Matias
title A foliar endophyte increases the diversity of phosphorus-solubilizing rhizospheric fungi and mycorrhizal colonization in the wild grass Bromus auleticus
title_short A foliar endophyte increases the diversity of phosphorus-solubilizing rhizospheric fungi and mycorrhizal colonization in the wild grass Bromus auleticus
title_full A foliar endophyte increases the diversity of phosphorus-solubilizing rhizospheric fungi and mycorrhizal colonization in the wild grass Bromus auleticus
title_fullStr A foliar endophyte increases the diversity of phosphorus-solubilizing rhizospheric fungi and mycorrhizal colonization in the wild grass Bromus auleticus
title_full_unstemmed A foliar endophyte increases the diversity of phosphorus-solubilizing rhizospheric fungi and mycorrhizal colonization in the wild grass Bromus auleticus
title_sort foliar endophyte increases the diversity of phosphorus-solubilizing rhizospheric fungi and mycorrhizal colonization in the wild grass bromus auleticus
publishDate 2015
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17545048_v17_n_p146_Arrieta
http://hdl.handle.net/20.500.12110/paper_17545048_v17_n_p146_Arrieta
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