Effect of epichloid endophytes and soil fertilization on arbuscular mycorrhizal colonization of a wild grass

Background and aims: Plants often establish multiple simultaneous symbiotic associations with different micro-organisms; however, the way in which each symbiont affects the other symbionts and the effects of these multiple interactions on plant performance are not well understood. The aim of this st...

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Autores principales:	Vignale, M.V., Iannone, L.J., Pinget, A.D., De Battista, J.P., Novas, M.V.
Formato:	JOUR
Materias:	Bromus auleticus Epichloë pampeana Epichloë tembladerae Field experiment Plant-microbe interactions Symbiosis arbuscular mycorrhiza biomass colonization endophyte experimental study field method grass plant-insect interaction soil fertility symbiont symbiosis Bromus Fungi Poaceae
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_0032079X_v405_n1-2_p279_Vignale
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_0032079X_v405_n1-2_p279_Vignale
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spelling	todo:paper_0032079X_v405_n1-2_p279_Vignale2023-10-03T14:44:52Z Effect of epichloid endophytes and soil fertilization on arbuscular mycorrhizal colonization of a wild grass Vignale, M.V. Iannone, L.J. Pinget, A.D. De Battista, J.P. Novas, M.V. Bromus auleticus Epichloë pampeana Epichloë tembladerae Field experiment Plant-microbe interactions Symbiosis arbuscular mycorrhiza biomass colonization endophyte experimental study field method grass plant-insect interaction soil fertility symbiont symbiosis Bromus Fungi Poaceae Background and aims: Plants often establish multiple simultaneous symbiotic associations with different micro-organisms; however, the way in which each symbiont affects the other symbionts and the effects of these multiple interactions on plant performance are not well understood. The aim of this study was to evaluate how two different asexual Epichloë species modulate the establishment of arbuscular mycorrhizal fungi (AMF) in a wild forage grass under different soil fertilization levels. Methods: We performed a completely randomized 12-month-long field experiment to evaluate the effect of two B. auleticus-endophyte ecotypes and two soil fertilization levels on the colonization of AMF, in seedlings and adult plants. Plant biomass and reproductive tillers production were also measured. Results: The symbiosis, measured as the total extent of AM fungal colonization and frequency of arbuscules was significantly higher in Epichloë-infected plants and was not affected by fertilization either in seedlings or in adult plants. Plant biomass was increased by fertilization but no differences were observed due to the endophytic status. However, E+ plants produced more panicles than their E− counterparts. Conclusions: Our findings strongly support the hypothesis of positive association between Epichloë endophytes and AMF in wild grasses, making this model important for agronomic improvement. © 2015, Springer International Publishing Switzerland. Fil:Iannone, L.J. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0032079X_v405_n1-2_p279_Vignale
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Bromus auleticus Epichloë pampeana Epichloë tembladerae Field experiment Plant-microbe interactions Symbiosis arbuscular mycorrhiza biomass colonization endophyte experimental study field method grass plant-insect interaction soil fertility symbiont symbiosis Bromus Fungi Poaceae
spellingShingle	Bromus auleticus Epichloë pampeana Epichloë tembladerae Field experiment Plant-microbe interactions Symbiosis arbuscular mycorrhiza biomass colonization endophyte experimental study field method grass plant-insect interaction soil fertility symbiont symbiosis Bromus Fungi Poaceae Vignale, M.V. Iannone, L.J. Pinget, A.D. De Battista, J.P. Novas, M.V. Effect of epichloid endophytes and soil fertilization on arbuscular mycorrhizal colonization of a wild grass
topic_facet	Bromus auleticus Epichloë pampeana Epichloë tembladerae Field experiment Plant-microbe interactions Symbiosis arbuscular mycorrhiza biomass colonization endophyte experimental study field method grass plant-insect interaction soil fertility symbiont symbiosis Bromus Fungi Poaceae
description	Background and aims: Plants often establish multiple simultaneous symbiotic associations with different micro-organisms; however, the way in which each symbiont affects the other symbionts and the effects of these multiple interactions on plant performance are not well understood. The aim of this study was to evaluate how two different asexual Epichloë species modulate the establishment of arbuscular mycorrhizal fungi (AMF) in a wild forage grass under different soil fertilization levels. Methods: We performed a completely randomized 12-month-long field experiment to evaluate the effect of two B. auleticus-endophyte ecotypes and two soil fertilization levels on the colonization of AMF, in seedlings and adult plants. Plant biomass and reproductive tillers production were also measured. Results: The symbiosis, measured as the total extent of AM fungal colonization and frequency of arbuscules was significantly higher in Epichloë-infected plants and was not affected by fertilization either in seedlings or in adult plants. Plant biomass was increased by fertilization but no differences were observed due to the endophytic status. However, E+ plants produced more panicles than their E− counterparts. Conclusions: Our findings strongly support the hypothesis of positive association between Epichloë endophytes and AMF in wild grasses, making this model important for agronomic improvement. © 2015, Springer International Publishing Switzerland.
format	JOUR
author	Vignale, M.V. Iannone, L.J. Pinget, A.D. De Battista, J.P. Novas, M.V.
author_facet	Vignale, M.V. Iannone, L.J. Pinget, A.D. De Battista, J.P. Novas, M.V.
author_sort	Vignale, M.V.
title	Effect of epichloid endophytes and soil fertilization on arbuscular mycorrhizal colonization of a wild grass
title_short	Effect of epichloid endophytes and soil fertilization on arbuscular mycorrhizal colonization of a wild grass
title_full	Effect of epichloid endophytes and soil fertilization on arbuscular mycorrhizal colonization of a wild grass
title_fullStr	Effect of epichloid endophytes and soil fertilization on arbuscular mycorrhizal colonization of a wild grass
title_full_unstemmed	Effect of epichloid endophytes and soil fertilization on arbuscular mycorrhizal colonization of a wild grass
title_sort	effect of epichloid endophytes and soil fertilization on arbuscular mycorrhizal colonization of a wild grass
url	http://hdl.handle.net/20.500.12110/paper_0032079X_v405_n1-2_p279_Vignale
work_keys_str_mv	AT vignalemv effectofepichloidendophytesandsoilfertilizationonarbuscularmycorrhizalcolonizationofawildgrass AT iannonelj effectofepichloidendophytesandsoilfertilizationonarbuscularmycorrhizalcolonizationofawildgrass AT pingetad effectofepichloidendophytesandsoilfertilizationonarbuscularmycorrhizalcolonizationofawildgrass AT debattistajp effectofepichloidendophytesandsoilfertilizationonarbuscularmycorrhizalcolonizationofawildgrass AT novasmv effectofepichloidendophytesandsoilfertilizationonarbuscularmycorrhizalcolonizationofawildgrass
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Effect of epichloid endophytes and soil fertilization on arbuscular mycorrhizal colonization of a wild grass

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