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Serpentine bacteria influence metal translocation and bioconcentration of Brassica juncea and Ricinus communis grown in multi-metal polluted soils

2015Journal article Open access
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dc.contributor.authorMa, Ying
dc.contributor.authorRajkumar, Mani
dc.contributor.authorRocha, Inês
dc.contributor.authorOliveira, Rui S.
dc.contributor.authorFreitas, Helena
dc.date.accessioned2015-05-12T14:00:17Z
dc.date.available2015-05-12T14:00:17Z
dc.date.issued2015
dc.description.abstractThe aim of this study was to assess the effects of inoculation of rhizosphere or endophytic bacteria (Psychrobacter sp. SRS8 and Pseudomonas sp. A3R3, respectively) isolated from a serpentine environment on the plant growth and the translocation and accumulation of Ni, Zn, and Fe by Brassica juncea and Ricinus communis on a multi-metal polluted serpentine soil (SS). Field collected SS was diluted to 0, 25, 50, and 75% with pristine soil in order to obtain a range of heavy metal concentrations and used in microcosm experiments. Regardless of inoculation with bacteria, the biomass of both plant species decreased with increase of the proportion of SS. Inoculation of plants with bacteria significantly increased the plant biomass and the heavy metal accumulation compared with non-inoculated control in the presence of different proportion of SS, which was attributed to the production of plant growth promoting and/or metal mobilizing metabolites by bacteria. However, SRS8 showed a maximum increase in the biomass of the test plants grown even in the treatment of 75% SS. In turn, A3R3 showed maximum effects on the accumulation of heavy metals in both plants. Regardless of inoculation of bacteria and proportion of SS, both plant species exhibited low values of bioconcentration factor (<1) for Ni and Fe. The inoculation of both bacterial strains significantly increased the translocation factor (TF) of Ni while decreasing the TF of Zn in both plant species. Besides this contrasting effect, the TFs of all metals were <1, indicating that all studied bacteria–plant combinations are suitable for phytostabilization. This study demonstrates that the bacterial isolates A3R3 and SRS8 improved the growth of B. juncea and R. communis in SS soils and have a great potential to be used as inoculants in phytostabilization scenarios of multi-metal contaminated soils.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationMA, Ying …[et al.] – Serpentine bacteria influence metal translocation and bioconcentration of Brassica juncea and Ricinus communis grown in multi-metal polluted soils. Frontiers in Plant Science. ISSN 1664-462X. Vol. 5: 757 (2015), p. 1-13por
dc.identifier.doi10.3389/fpls.2014.00757
dc.identifier.eid84922254027
dc.identifier.issn1664-462X
dc.identifier.pmid25601876
dc.identifier.urihttp://hdl.handle.net/10400.14/17563
dc.identifier.wos000348024500002
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherFrontiers Media SA
dc.relationCOMPETE: FCOMP-01-0124-FEDER-041572
dc.relationSYMBIOTIC EFFICIENCY OF PLANT GROWTH PROMOTING BACTERIA PGPB AND ARBUSCULAR MYCORRHIZAL FUNGI AMF FOR PHYTOREMEDIATION OF METAL CONTAMINATED SOILS
dc.relationSeed coating with microbial inoculants as an ecotechnological approach for sustainable agriculture
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectPhytostabilization
dc.subjectPlant growth promoting bacteria;
dc.subjectSerpentine soils
dc.subjectHeavy metals
dc.subjectBrassica juncea
dc.subjectRicinus communis
dc.titleSerpentine bacteria influence metal translocation and bioconcentration of Brassica juncea and Ricinus communis grown in multi-metal polluted soilspor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleSYMBIOTIC EFFICIENCY OF PLANT GROWTH PROMOTING BACTERIA PGPB AND ARBUSCULAR MYCORRHIZAL FUNGI AMF FOR PHYTOREMEDIATION OF METAL CONTAMINATED SOILS
oaire.awardTitleSeed coating with microbial inoculants as an ecotechnological approach for sustainable agriculture
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F76028%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F85008%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/EXPL%2FAGR-TEC%2F1204%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/COMPETE/EXPL%2FAGR-TEC%2F1204%2F2013/PT
oaire.citation.issue757
oaire.citation.titleFrontiers in Plant Science
oaire.citation.volume5
oaire.fundingStreamSFRH
oaire.fundingStream5876-PPCDTI
oaire.fundingStreamCOMPETE
person.familyNameMa
person.familyNameRajkumar
person.familyNamede Sousa Rocha
person.familyNameOliveira
person.familyNameFreitas
person.givenNameYing
person.givenNameMani
person.givenNameInês
person.givenNameRui S.
person.givenNameHelena
person.identifier174354
person.identifier.ciencia-idCD12-3E6C-D657
person.identifier.ciencia-idA51D-6574-DFCD
person.identifier.ciencia-id5D1A-0418-B673
person.identifier.ciencia-id251B-951A-F21E
person.identifier.orcid0000-0002-0262-4488
person.identifier.orcid0000-0002-2088-4566
person.identifier.orcid0000-0003-3380-602X
person.identifier.orcid0000-0001-5252-5595
person.identifier.orcid0000-0002-1907-9615
person.identifier.ridJ-1152-2014
person.identifier.ridA-2803-2010
person.identifier.scopus-author-id56861504000
person.identifier.scopus-author-id8633775000
person.identifier.scopus-author-id56865275400
person.identifier.scopus-author-id6603978881
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
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