Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity

This study aimed to isolate and characterize bacteria associated with surface-sterilized germinated propagules of arbuscular mycorrhizal (AM) fungi. It also aimed to evaluate their activity as mycorrhization helper bacteria (MHB) on the AM fungus Rhizophagus intraradices, which is commonly used in t...

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Autores principales:	Fernández Bidondo, L., Colombo, R., Bompadre, J., Benavides, M., Scorza, V., Silvani, V., Pérgola, M., Godeas, A.
Formato:	JOUR
Materias:	Arbuscular mycorrhizal fungi Associated helper rhizobacteria Complex microbial inoculants
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_09291393_v105_n_p86_FernandezBidondo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	todo:paper_09291393_v105_n_p86_FernandezBidondo2023-10-03T15:47:31Z Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity Fernández Bidondo, L. Colombo, R. Bompadre, J. Benavides, M. Scorza, V. Silvani, V. Pérgola, M. Godeas, A. Arbuscular mycorrhizal fungi Associated helper rhizobacteria Complex microbial inoculants This study aimed to isolate and characterize bacteria associated with surface-sterilized germinated propagules of arbuscular mycorrhizal (AM) fungi. It also aimed to evaluate their activity as mycorrhization helper bacteria (MHB) on the AM fungus Rhizophagus intraradices, which is commonly used in the formulation of bioinoculants. Most isolated bacteria did not significantly affect the viability and subsequent growth of mycelia. Azospirillum sp., Rhizobium etli, Bacillus megaterium, Bacillus sp., and Paenibacillus rhizosphaerae significantly enhanced pre-symbiotic variables (the re-growth/germination and the mycelia formed from AM propagules). P. rhizosphaerae, Azospirillum sp., and R. etli also increased extraradical mycelial length, mycorrhization percentages and the number of newly formed spores. The isolated MHB were characterized based on their starch-degrading ability, indole acetic acid production, phosphate solubilization, and inhibition of phytopathogenic fungal growth. Results suggest that some of the MHB studied, in association with viable AM propagules, could be potentially used as complex microbial inoculants for plant growth promotion. © 2016 Elsevier B.V. Fil:Fernández Bidondo, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bompadre, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Silvani, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pérgola, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Godeas, A. 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_09291393_v105_n_p86_FernandezBidondo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Arbuscular mycorrhizal fungi Associated helper rhizobacteria Complex microbial inoculants
spellingShingle	Arbuscular mycorrhizal fungi Associated helper rhizobacteria Complex microbial inoculants Fernández Bidondo, L. Colombo, R. Bompadre, J. Benavides, M. Scorza, V. Silvani, V. Pérgola, M. Godeas, A. Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity
topic_facet	Arbuscular mycorrhizal fungi Associated helper rhizobacteria Complex microbial inoculants
description	This study aimed to isolate and characterize bacteria associated with surface-sterilized germinated propagules of arbuscular mycorrhizal (AM) fungi. It also aimed to evaluate their activity as mycorrhization helper bacteria (MHB) on the AM fungus Rhizophagus intraradices, which is commonly used in the formulation of bioinoculants. Most isolated bacteria did not significantly affect the viability and subsequent growth of mycelia. Azospirillum sp., Rhizobium etli, Bacillus megaterium, Bacillus sp., and Paenibacillus rhizosphaerae significantly enhanced pre-symbiotic variables (the re-growth/germination and the mycelia formed from AM propagules). P. rhizosphaerae, Azospirillum sp., and R. etli also increased extraradical mycelial length, mycorrhization percentages and the number of newly formed spores. The isolated MHB were characterized based on their starch-degrading ability, indole acetic acid production, phosphate solubilization, and inhibition of phytopathogenic fungal growth. Results suggest that some of the MHB studied, in association with viable AM propagules, could be potentially used as complex microbial inoculants for plant growth promotion. © 2016 Elsevier B.V.
format	JOUR
author	Fernández Bidondo, L. Colombo, R. Bompadre, J. Benavides, M. Scorza, V. Silvani, V. Pérgola, M. Godeas, A.
author_facet	Fernández Bidondo, L. Colombo, R. Bompadre, J. Benavides, M. Scorza, V. Silvani, V. Pérgola, M. Godeas, A.
author_sort	Fernández Bidondo, L.
title	Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity
title_short	Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity
title_full	Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity
title_fullStr	Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity
title_full_unstemmed	Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity
title_sort	cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. implications for mycorrhizal activity
url	http://hdl.handle.net/20.500.12110/paper_09291393_v105_n_p86_FernandezBidondo
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Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity

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