Arbuscular mycorrhiza mediated effects on growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med. in a subtropical grassland soil

Arbuscular mycorrhiza mediated effects on growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med. in a subtropical grassland soil

Soil symbiotic microorganisms promote recruitment of legume forage species in grassland ecosystems by enhancing provision for nutrients. We studied the effects of arbuscular mycorrhizal fungi (AMF) on plant growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med., a forage legume with potential use in subtropical grasslands. Responses to AMF inoculation (a mix of Funneliformis mosseae, Rhizophagus irregularis and Simiglomus hoi) and phosphate fertilization were evaluated in plants growing for 12 weeks in a subtropical soil. All plants were previously inoculated with a suspension of Rhizobium meliloti. Plant responses were assessed in terms of mycorrhizal colonization, biomass production, mineral nutrition (P and N) and proportion of biological nitrogen fixation by 15N natural abundance method. The results showed that when soil phosphorus availability was very low, regardless of the degree of AMF colonization, the generation of mycorrhizae did not reach a significant impact on plant nutrition and biomass production. But under a relatively higher phosphorus provision, AMF symbiosis showed positive effects on phosphorus accumulation, nitrogen nutrition and biomass production, linked to an enhancement of biological nitrogen fixation. The results strengthen our understanding of how synergistic effects between belowground symbionts (in this case AMF+Rhizobium) could promote the recruitment of forage legumes in subtropical grassland soils.

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Main Authors: Hack Arzuaga, Claudina María, Porta, Miriam, Schäufele, Rudi, Grimoldi, Agustín Alberto
Format: Texto biblioteca
Language:eng
Subjects:FORAGE LEGUMES, MYCORRHIZA, NITROGEN FIXATION, PHOSPHORUS, SUBTROPICAL GRASSLANDS, SYMBIOSIS,
Online Access:http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46096
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spelling KOHA-OAI-AGRO:460962022-08-11T12:11:33Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46096http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGArbuscular mycorrhiza mediated effects on growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med. in a subtropical grassland soilHack Arzuaga, Claudina MaríaPorta, MiriamSchäufele, RudiGrimoldi, Agustín Albertotextengapplication/pdfSoil symbiotic microorganisms promote recruitment of legume forage species in grassland ecosystems by enhancing provision for nutrients. We studied the effects of arbuscular mycorrhizal fungi (AMF) on plant growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med., a forage legume with potential use in subtropical grasslands. Responses to AMF inoculation (a mix of Funneliformis mosseae, Rhizophagus irregularis and Simiglomus hoi) and phosphate fertilization were evaluated in plants growing for 12 weeks in a subtropical soil. All plants were previously inoculated with a suspension of Rhizobium meliloti. Plant responses were assessed in terms of mycorrhizal colonization, biomass production, mineral nutrition (P and N) and proportion of biological nitrogen fixation by 15N natural abundance method. The results showed that when soil phosphorus availability was very low, regardless of the degree of AMF colonization, the generation of mycorrhizae did not reach a significant impact on plant nutrition and biomass production. But under a relatively higher phosphorus provision, AMF symbiosis showed positive effects on phosphorus accumulation, nitrogen nutrition and biomass production, linked to an enhancement of biological nitrogen fixation. The results strengthen our understanding of how synergistic effects between belowground symbionts (in this case AMF+Rhizobium) could promote the recruitment of forage legumes in subtropical grassland soils.Soil symbiotic microorganisms promote recruitment of legume forage species in grassland ecosystems by enhancing provision for nutrients. We studied the effects of arbuscular mycorrhizal fungi (AMF) on plant growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med., a forage legume with potential use in subtropical grasslands. Responses to AMF inoculation (a mix of Funneliformis mosseae, Rhizophagus irregularis and Simiglomus hoi) and phosphate fertilization were evaluated in plants growing for 12 weeks in a subtropical soil. All plants were previously inoculated with a suspension of Rhizobium meliloti. Plant responses were assessed in terms of mycorrhizal colonization, biomass production, mineral nutrition (P and N) and proportion of biological nitrogen fixation by 15N natural abundance method. The results showed that when soil phosphorus availability was very low, regardless of the degree of AMF colonization, the generation of mycorrhizae did not reach a significant impact on plant nutrition and biomass production. But under a relatively higher phosphorus provision, AMF symbiosis showed positive effects on phosphorus accumulation, nitrogen nutrition and biomass production, linked to an enhancement of biological nitrogen fixation. The results strengthen our understanding of how synergistic effects between belowground symbionts (in this case AMF+Rhizobium) could promote the recruitment of forage legumes in subtropical grassland soils.FORAGE LEGUMESMYCORRHIZANITROGEN FIXATIONPHOSPHORUSSUBTROPICAL GRASSLANDSSYMBIOSISApplied Soil Ecology
institution UBA FA
collection Koha
country Argentina
countrycode AR
component Bibliográfico
access En linea
En linea
databasecode cat-ceiba
tag biblioteca
region America del Sur
libraryname Biblioteca Central FAUBA
language eng
topic FORAGE LEGUMES
MYCORRHIZA
NITROGEN FIXATION
PHOSPHORUS
SUBTROPICAL GRASSLANDS
SYMBIOSIS
FORAGE LEGUMES
MYCORRHIZA
NITROGEN FIXATION
PHOSPHORUS
SUBTROPICAL GRASSLANDS
SYMBIOSIS
spellingShingle FORAGE LEGUMES
MYCORRHIZA
NITROGEN FIXATION
PHOSPHORUS
SUBTROPICAL GRASSLANDS
SYMBIOSIS
FORAGE LEGUMES
MYCORRHIZA
NITROGEN FIXATION
PHOSPHORUS
SUBTROPICAL GRASSLANDS
SYMBIOSIS
Hack Arzuaga, Claudina María
Porta, Miriam
Schäufele, Rudi
Grimoldi, Agustín Alberto
Arbuscular mycorrhiza mediated effects on growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med. in a subtropical grassland soil
description Soil symbiotic microorganisms promote recruitment of legume forage species in grassland ecosystems by enhancing provision for nutrients. We studied the effects of arbuscular mycorrhizal fungi (AMF) on plant growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med., a forage legume with potential use in subtropical grasslands. Responses to AMF inoculation (a mix of Funneliformis mosseae, Rhizophagus irregularis and Simiglomus hoi) and phosphate fertilization were evaluated in plants growing for 12 weeks in a subtropical soil. All plants were previously inoculated with a suspension of Rhizobium meliloti. Plant responses were assessed in terms of mycorrhizal colonization, biomass production, mineral nutrition (P and N) and proportion of biological nitrogen fixation by 15N natural abundance method. The results showed that when soil phosphorus availability was very low, regardless of the degree of AMF colonization, the generation of mycorrhizae did not reach a significant impact on plant nutrition and biomass production. But under a relatively higher phosphorus provision, AMF symbiosis showed positive effects on phosphorus accumulation, nitrogen nutrition and biomass production, linked to an enhancement of biological nitrogen fixation. The results strengthen our understanding of how synergistic effects between belowground symbionts (in this case AMF+Rhizobium) could promote the recruitment of forage legumes in subtropical grassland soils.
format Texto
topic_facet FORAGE LEGUMES
MYCORRHIZA
NITROGEN FIXATION
PHOSPHORUS
SUBTROPICAL GRASSLANDS
SYMBIOSIS
author Hack Arzuaga, Claudina María
Porta, Miriam
Schäufele, Rudi
Grimoldi, Agustín Alberto
author_facet Hack Arzuaga, Claudina María
Porta, Miriam
Schäufele, Rudi
Grimoldi, Agustín Alberto
author_sort Hack Arzuaga, Claudina María
title Arbuscular mycorrhiza mediated effects on growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med. in a subtropical grassland soil
title_short Arbuscular mycorrhiza mediated effects on growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med. in a subtropical grassland soil
title_full Arbuscular mycorrhiza mediated effects on growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med. in a subtropical grassland soil
title_fullStr Arbuscular mycorrhiza mediated effects on growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med. in a subtropical grassland soil
title_full_unstemmed Arbuscular mycorrhiza mediated effects on growth, mineral nutrition and biological nitrogen fixation of Melilotus alba Med. in a subtropical grassland soil
title_sort arbuscular mycorrhiza mediated effects on growth, mineral nutrition and biological nitrogen fixation of melilotus alba med. in a subtropical grassland soil
url http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46096
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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AT portamiriam arbuscularmycorrhizamediatedeffectsongrowthmineralnutritionandbiologicalnitrogenfixationofmelilotusalbamedinasubtropicalgrasslandsoil
AT schaufelerudi arbuscularmycorrhizamediatedeffectsongrowthmineralnutritionandbiologicalnitrogenfixationofmelilotusalbamedinasubtropicalgrasslandsoil
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