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Abstract:

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.

Registro:

Documento: Artículo
Título:Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity
Autor:Fernández Bidondo, L.; Colombo, R.; Bompadre, J.; Benavides, M.; Scorza, V.; Silvani, V.; Pérgola, M.; Godeas, A.
Filiación:Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales (FCEyN), CONICET, Ciudad Universitaria, 4to piso Pabellón 2, Buenos Aires, 1428, Argentina
Palabras clave:Arbuscular mycorrhizal fungi; Associated helper rhizobacteria; Complex microbial inoculants
Año:2016
Volumen:105
Página de inicio:86
Página de fin:90
DOI: http://dx.doi.org/10.1016/j.apsoil.2016.04.013
Título revista:Applied Soil Ecology
Título revista abreviado:Appl. Soil Ecol.
ISSN:09291393
CODEN:ASECF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09291393_v105_n_p86_FernandezBidondo

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Citas:

---------- APA ----------
Fernández Bidondo, L., Colombo, R., Bompadre, J., Benavides, M., Scorza, V., Silvani, V., Pérgola, M.,..., Godeas, A. (2016) . Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity. Applied Soil Ecology, 105, 86-90.
http://dx.doi.org/10.1016/j.apsoil.2016.04.013
---------- CHICAGO ----------
Fernández Bidondo, L., Colombo, R., Bompadre, J., Benavides, M., Scorza, V., Silvani, V., et al. "Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity" . Applied Soil Ecology 105 (2016) : 86-90.
http://dx.doi.org/10.1016/j.apsoil.2016.04.013
---------- MLA ----------
Fernández Bidondo, L., Colombo, R., Bompadre, J., Benavides, M., Scorza, V., Silvani, V., et al. "Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity" . Applied Soil Ecology, vol. 105, 2016, pp. 86-90.
http://dx.doi.org/10.1016/j.apsoil.2016.04.013
---------- VANCOUVER ----------
Fernández Bidondo, L., Colombo, R., Bompadre, J., Benavides, M., Scorza, V., Silvani, V., et al. Cultivable bacteria associated with infective propagules of arbuscular mycorrhizal fungi. Implications for mycorrhizal activity. Appl. Soil Ecol. 2016;105:86-90.
http://dx.doi.org/10.1016/j.apsoil.2016.04.013