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Synergistic effects of arbuscular mycorrhizal fungi and plant growth-promoting bacteria benefit maize growth under increasing soil salinity

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dc.contributor.authorMoreira, Helena
dc.contributor.authorPereira, Sofia I.A.
dc.contributor.authorVega, Alberto
dc.contributor.authorCastro, Paula M.L.
dc.contributor.authorMarques, Ana P.G.C.
dc.date.accessioned2021-01-07T16:07:25Z
dc.date.available2021-01-07T16:07:25Z
dc.date.issued2020
dc.description.abstractSalt-affected soils are a major problem worldwide for crop production. Bioinocula such as plant growth-promoting bacteria (PGPB) and arbuscular mycorrhizal fungi (AMF) can help plants to thrive in these areas but interactions between them and with soil conditions can modulate the effects on their host. To test potential synergistic effects of bioinoculants with intrinsically different functional relationships with their host in buffering the effect of saline stress, maize plants were grown under increasing soil salinity (0–5 g NaCl kg−-1 soil) and inoculated with two PGPB strains (Pseudomonas reactans EDP28, and Pantoea alli ZS 3-6), one AMF (Rhizoglomus irregulare), and with the combination of both. We then modelled biomass, ion and nutrient content in maize plants in response to increasing salt concentration and microbial inoculant treatments using generalized linear models. The impacts of the different treatments on the rhizosphere bacterial communities were also analyzed. Microbial inoculants tended to mitigate ion imbalances in plants across the gradient of NaCl, promoting maize growth and nutritional status. These effects were mostly prominent in the treatments comprising the dual inoculation (AMF and PGPB), occurring throughout the gradient of salinity in the soil. The composition of bacterial communities of the soil was not affected by microbial treatments and were mainly driven by salt exposure. The tested bioinocula are most efficient for maize growth and health when co-inoculated, increasing the content of K+ accompanied by an effective decrease of Na+ in plant tissues. Moreover, synergistic effects potentially contribute to expanding crop production to otherwise unproductive soils. Results suggest that the combination of AMF and PGPB leads to interactions that may have a potential role in alleviating the stress and improve crop productivity in salt-affected soils.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMoreira, H., Pereira, S.I.A., Vega, A., Castro, P.M.L., Marques, A.P.G.C. (2020). Synergistic effects of arbuscular mycorrhizal fungi and plant growth-promoting bacteria benefit maize growth under increasing soil salinity. Journal of Environmental Management, 257: 109982pt_PT
dc.identifier.doi10.1016/j.jenvman.2019.109982pt_PT
dc.identifier.issn0301-4797
dc.identifier.urihttp://hdl.handle.net/10400.14/31593
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationEXPL/AGR-PRO/0521/ 2013pt_PT
dc.relationCentre for Biotechnology and Fine Chemistry
dc.subjectPGPBpt_PT
dc.subjectAMFpt_PT
dc.subjectSalt stresspt_PT
dc.subjectGLMpt_PT
dc.subjectBioinoculapt_PT
dc.titleSynergistic effects of arbuscular mycorrhizal fungi and plant growth-promoting bacteria benefit maize growth under increasing soil salinitypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Biotechnology and Fine Chemistry
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F50016%2F2019/PT
oaire.citation.titleJournal of Environmental Managementpt_PT
oaire.citation.volume257pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameGomes Moreira
person.familyNamePereira
person.familyNameLópez Vega
person.familyNameCastro
person.familyNameMarques
person.givenNameHelena Maria
person.givenNameSofia
person.givenNameAlberto
person.givenNamePaula
person.givenNameAna
person.identifier2013444
person.identifier.ciencia-id961A-7EDB-5F65
person.identifier.ciencia-id3416-CFB7-17A6
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0002-4674-5417
person.identifier.orcid0000-0002-5897-687X
person.identifier.orcid0000-0001-8473-3292
person.identifier.orcid0000-0001-8841-6606
person.identifier.orcid0000-0001-8232-1155
person.identifier.ridH-4202-2016
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id15127794800
person.identifier.scopus-author-id7102781782
person.identifier.scopus-author-id14523081300
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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