Arbuscular mycorrhiza reduces the negative effects of M. phaseolina on soybean plants in arsenic-contaminated soils

Arbuscular mycorrhiza reduces the negative effects of M. phaseolina on soybean plants in arsenic-contaminated soils

All crops are negatively affected by several abiotic and biotic stresses, alone or jointly; however, some microorganisms, such as arbuscular mycorrhizal fungi (AMF), are able to alleviate them. Here, we investigated the effects of the AMF Rhizophagus intraradices (N.C. Schenck & G.S. Smith) C. Walker & A. Schüßler on soybean plants (Glycine max L.) grown in arsenic-contaminated soils and infected by the fungus Macrophomina phaseolina (Tassi) Goid., (charcoal rot). Two pots experiments were carried out in a glasshouse, and three levels of As (0, 25, and 50 mg As kg−1) were evaluated. Plant and mycorrhizal parameters, disease severity, glomalin content, and arsenic content in roots and leaves were analyzed. Both arsenic and the pathogen negatively affected soybean biomass and morphological parameters. Moreover, both stresses adversely affected mycorrhizal symbiosis. Low levels of AMF colonization and vitality were observed in high As concentration and in pathogen presence; however AMF inoculation not only reduced the disease but also lowered arsenic accumulation rate in soybean biomass. On the other hands, disease severity was reduced by arsenic. Total glomalin content, produced by the AMF was increased in arsenic-enriched substrates, but was not modified in the presence of the pathogen. Increases in glomalin production could be one of the reasons by which soybean plants accumulate low arsenic amounts while the competition between AMF and the pathogen plays an important role in reducing the disease severity.

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Main Authors: Spagnoletti, Federico Nicolás, Carmona, Marcelo Aníbal, Tobar Gómez, Natalia E., Chiocchio, Viviana Mónica, Lavado, Raúl Silvio
Format: Texto biblioteca
Language:eng
Subjects:CONTAMINATED SOILS, ARBUSCULAR MYCORRHIZA, BIOLOGICAL CONTROL, CHARCOAL ROT, BIOTIC STRESS, ABIOTIC STRESS,
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spelling KOHA-OAI-AGRO:455242022-08-09T13:04:51Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=45524http://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 reduces the negative effects of M. phaseolina on soybean plants in arsenic-contaminated soilsSpagnoletti, Federico NicolásCarmona, Marcelo AníbalTobar Gómez, Natalia E.Chiocchio, Viviana MónicaLavado, Raúl Silviotextengapplication/pdfAll crops are negatively affected by several abiotic and biotic stresses, alone or jointly; however, some microorganisms, such as arbuscular mycorrhizal fungi (AMF), are able to alleviate them. Here, we investigated the effects of the AMF Rhizophagus intraradices (N.C. Schenck & G.S. Smith) C. Walker & A. Schüßler on soybean plants (Glycine max L.) grown in arsenic-contaminated soils and infected by the fungus Macrophomina phaseolina (Tassi) Goid., (charcoal rot). Two pots experiments were carried out in a glasshouse, and three levels of As (0, 25, and 50 mg As kg−1) were evaluated. Plant and mycorrhizal parameters, disease severity, glomalin content, and arsenic content in roots and leaves were analyzed. Both arsenic and the pathogen negatively affected soybean biomass and morphological parameters. Moreover, both stresses adversely affected mycorrhizal symbiosis. Low levels of AMF colonization and vitality were observed in high As concentration and in pathogen presence; however AMF inoculation not only reduced the disease but also lowered arsenic accumulation rate in soybean biomass. On the other hands, disease severity was reduced by arsenic. Total glomalin content, produced by the AMF was increased in arsenic-enriched substrates, but was not modified in the presence of the pathogen. Increases in glomalin production could be one of the reasons by which soybean plants accumulate low arsenic amounts while the competition between AMF and the pathogen plays an important role in reducing the disease severity.All crops are negatively affected by several abiotic and biotic stresses, alone or jointly; however, some microorganisms, such as arbuscular mycorrhizal fungi (AMF), are able to alleviate them. Here, we investigated the effects of the AMF Rhizophagus intraradices (N.C. Schenck & G.S. Smith) C. Walker & A. Schüßler on soybean plants (Glycine max L.) grown in arsenic-contaminated soils and infected by the fungus Macrophomina phaseolina (Tassi) Goid., (charcoal rot). Two pots experiments were carried out in a glasshouse, and three levels of As (0, 25, and 50 mg As kg−1) were evaluated. Plant and mycorrhizal parameters, disease severity, glomalin content, and arsenic content in roots and leaves were analyzed. Both arsenic and the pathogen negatively affected soybean biomass and morphological parameters. Moreover, both stresses adversely affected mycorrhizal symbiosis. Low levels of AMF colonization and vitality were observed in high As concentration and in pathogen presence; however AMF inoculation not only reduced the disease but also lowered arsenic accumulation rate in soybean biomass. On the other hands, disease severity was reduced by arsenic. Total glomalin content, produced by the AMF was increased in arsenic-enriched substrates, but was not modified in the presence of the pathogen. Increases in glomalin production could be one of the reasons by which soybean plants accumulate low arsenic amounts while the competition between AMF and the pathogen plays an important role in reducing the disease severity.CONTAMINATED SOILSARBUSCULAR MYCORRHIZABIOLOGICAL CONTROLCHARCOAL ROTBIOTIC STRESSABIOTIC STRESSApplied 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 CONTAMINATED SOILS
ARBUSCULAR MYCORRHIZA
BIOLOGICAL CONTROL
CHARCOAL ROT
BIOTIC STRESS
ABIOTIC STRESS
CONTAMINATED SOILS
ARBUSCULAR MYCORRHIZA
BIOLOGICAL CONTROL
CHARCOAL ROT
BIOTIC STRESS
ABIOTIC STRESS
spellingShingle CONTAMINATED SOILS
ARBUSCULAR MYCORRHIZA
BIOLOGICAL CONTROL
CHARCOAL ROT
BIOTIC STRESS
ABIOTIC STRESS
CONTAMINATED SOILS
ARBUSCULAR MYCORRHIZA
BIOLOGICAL CONTROL
CHARCOAL ROT
BIOTIC STRESS
ABIOTIC STRESS
Spagnoletti, Federico Nicolás
Carmona, Marcelo Aníbal
Tobar Gómez, Natalia E.
Chiocchio, Viviana Mónica
Lavado, Raúl Silvio
Arbuscular mycorrhiza reduces the negative effects of M. phaseolina on soybean plants in arsenic-contaminated soils
description All crops are negatively affected by several abiotic and biotic stresses, alone or jointly; however, some microorganisms, such as arbuscular mycorrhizal fungi (AMF), are able to alleviate them. Here, we investigated the effects of the AMF Rhizophagus intraradices (N.C. Schenck & G.S. Smith) C. Walker & A. Schüßler on soybean plants (Glycine max L.) grown in arsenic-contaminated soils and infected by the fungus Macrophomina phaseolina (Tassi) Goid., (charcoal rot). Two pots experiments were carried out in a glasshouse, and three levels of As (0, 25, and 50 mg As kg−1) were evaluated. Plant and mycorrhizal parameters, disease severity, glomalin content, and arsenic content in roots and leaves were analyzed. Both arsenic and the pathogen negatively affected soybean biomass and morphological parameters. Moreover, both stresses adversely affected mycorrhizal symbiosis. Low levels of AMF colonization and vitality were observed in high As concentration and in pathogen presence; however AMF inoculation not only reduced the disease but also lowered arsenic accumulation rate in soybean biomass. On the other hands, disease severity was reduced by arsenic. Total glomalin content, produced by the AMF was increased in arsenic-enriched substrates, but was not modified in the presence of the pathogen. Increases in glomalin production could be one of the reasons by which soybean plants accumulate low arsenic amounts while the competition between AMF and the pathogen plays an important role in reducing the disease severity.
format Texto
topic_facet CONTAMINATED SOILS
ARBUSCULAR MYCORRHIZA
BIOLOGICAL CONTROL
CHARCOAL ROT
BIOTIC STRESS
ABIOTIC STRESS
author Spagnoletti, Federico Nicolás
Carmona, Marcelo Aníbal
Tobar Gómez, Natalia E.
Chiocchio, Viviana Mónica
Lavado, Raúl Silvio
author_facet Spagnoletti, Federico Nicolás
Carmona, Marcelo Aníbal
Tobar Gómez, Natalia E.
Chiocchio, Viviana Mónica
Lavado, Raúl Silvio
author_sort Spagnoletti, Federico Nicolás
title Arbuscular mycorrhiza reduces the negative effects of M. phaseolina on soybean plants in arsenic-contaminated soils
title_short Arbuscular mycorrhiza reduces the negative effects of M. phaseolina on soybean plants in arsenic-contaminated soils
title_full Arbuscular mycorrhiza reduces the negative effects of M. phaseolina on soybean plants in arsenic-contaminated soils
title_fullStr Arbuscular mycorrhiza reduces the negative effects of M. phaseolina on soybean plants in arsenic-contaminated soils
title_full_unstemmed Arbuscular mycorrhiza reduces the negative effects of M. phaseolina on soybean plants in arsenic-contaminated soils
title_sort arbuscular mycorrhiza reduces the negative effects of m. phaseolina on soybean plants in arsenic-contaminated soils
url http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=45524
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http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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