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Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018

BACKGROUND: The co-inoculation of soybean with Bradyrhizobium and other plant growth-promoting rhizobacteria (PGPR) is considered a promising technology. However, there has been little quantitative analysis of the effects of this technique on yield variables. In this context, the present study aimin...

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Autores principales: Zeffa, Douglas M., Fantin, Lucas H., Koltun, Alessandra, de Oliveira, André L.M., Nunes, Maria P.B.A., Canteri, Marcelo G., Gonçalves, Leandro S.A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6955106/
https://www.ncbi.nlm.nih.gov/pubmed/31942248
http://dx.doi.org/10.7717/peerj.7905
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author Zeffa, Douglas M.
Fantin, Lucas H.
Koltun, Alessandra
de Oliveira, André L.M.
Nunes, Maria P.B.A.
Canteri, Marcelo G.
Gonçalves, Leandro S.A.
author_facet Zeffa, Douglas M.
Fantin, Lucas H.
Koltun, Alessandra
de Oliveira, André L.M.
Nunes, Maria P.B.A.
Canteri, Marcelo G.
Gonçalves, Leandro S.A.
author_sort Zeffa, Douglas M.
collection PubMed
description BACKGROUND: The co-inoculation of soybean with Bradyrhizobium and other plant growth-promoting rhizobacteria (PGPR) is considered a promising technology. However, there has been little quantitative analysis of the effects of this technique on yield variables. In this context, the present study aiming to provide a quantification of the effects of the co-inoculation of Bradyrhizobium and PGPR on the soybean crop using a meta-analysis approach. METHODS: A total of 42 published articles were examined, all of which considered the effects of co-inoculation of PGPR and Bradyrhizobium on the number of nodules, nodule biomass, root biomass, shoot biomass, shoot nitrogen content, and grain yield of soybean. We also determined whether the genus of the PGPR used as co-inoculant, as well as the experimental conditions, altered the effect size of the PGPR. RESULTS: The co-inoculation technology resulted in a significant increase in nodule number (11.40%), nodule biomass (6.47%), root biomass (12.84%), and shoot biomass (6.53%). Despite these positive results, no significant increase was observed in shoot nitrogen content and grain yield. The response of the co-inoculation varied according to the PGPR genus used as co-inoculant, as well as with the experimental conditions. In general, the genera Azospirillum, Bacillus, and Pseudomonas were more effective than Serratia. Overall, the observed increments were more pronounced under pot than that of field conditions. Collectively, this study summarize that co-inoculation improves plant development and increases nodulation, which may be important in overcoming nutritional limitations and potential stresses during the plant growth cycle, even though significant increases in grain yield have not been evidenced by this data meta-analysis.
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spelling pubmed-69551062020-01-15 Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018 Zeffa, Douglas M. Fantin, Lucas H. Koltun, Alessandra de Oliveira, André L.M. Nunes, Maria P.B.A. Canteri, Marcelo G. Gonçalves, Leandro S.A. PeerJ Agricultural Science BACKGROUND: The co-inoculation of soybean with Bradyrhizobium and other plant growth-promoting rhizobacteria (PGPR) is considered a promising technology. However, there has been little quantitative analysis of the effects of this technique on yield variables. In this context, the present study aiming to provide a quantification of the effects of the co-inoculation of Bradyrhizobium and PGPR on the soybean crop using a meta-analysis approach. METHODS: A total of 42 published articles were examined, all of which considered the effects of co-inoculation of PGPR and Bradyrhizobium on the number of nodules, nodule biomass, root biomass, shoot biomass, shoot nitrogen content, and grain yield of soybean. We also determined whether the genus of the PGPR used as co-inoculant, as well as the experimental conditions, altered the effect size of the PGPR. RESULTS: The co-inoculation technology resulted in a significant increase in nodule number (11.40%), nodule biomass (6.47%), root biomass (12.84%), and shoot biomass (6.53%). Despite these positive results, no significant increase was observed in shoot nitrogen content and grain yield. The response of the co-inoculation varied according to the PGPR genus used as co-inoculant, as well as with the experimental conditions. In general, the genera Azospirillum, Bacillus, and Pseudomonas were more effective than Serratia. Overall, the observed increments were more pronounced under pot than that of field conditions. Collectively, this study summarize that co-inoculation improves plant development and increases nodulation, which may be important in overcoming nutritional limitations and potential stresses during the plant growth cycle, even though significant increases in grain yield have not been evidenced by this data meta-analysis. PeerJ Inc. 2020-01-09 /pmc/articles/PMC6955106/ /pubmed/31942248 http://dx.doi.org/10.7717/peerj.7905 Text en ©2020 Zeffa et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Agricultural Science
Zeffa, Douglas M.
Fantin, Lucas H.
Koltun, Alessandra
de Oliveira, André L.M.
Nunes, Maria P.B.A.
Canteri, Marcelo G.
Gonçalves, Leandro S.A.
Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018
title Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018
title_full Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018
title_fullStr Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018
title_full_unstemmed Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018
title_short Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018
title_sort effects of plant growth-promoting rhizobacteria on co-inoculation with bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018
topic Agricultural Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6955106/
https://www.ncbi.nlm.nih.gov/pubmed/31942248
http://dx.doi.org/10.7717/peerj.7905
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