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Evaluation of the Efficacy of Two New Biotechnological-Based Freeze-Dried Fertilizers for Sustainable Fe Deficiency Correction of Soybean Plants Grown in Calcareous Soils

2019Journal article Open access
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dc.contributor.authorFerreira, Carlos M. H.
dc.contributor.authorLópez-Rayo, Sandra
dc.contributor.authorLucena, Juan J.
dc.contributor.authorSoares, Eduardo V.
dc.contributor.authorSoares, Helena M. V. M.
dc.date.accessioned2021-02-26T10:18:41Z
dc.date.available2021-02-26T10:18:41Z
dc.date.issued2019
dc.description.abstractCurrently, fertilization with synthetic chelates is the most effective agricultural practice to prevent iron (Fe) deficiencies in crops, especially in calcareous soils. Because these compounds are not biodegradable, they are persistent in the environment, and so, there is the risk of metal leaching from the soils. Thus, new, more environment-friendly efficient solutions are needed to solve iron-deficiency-induced chlorosis (IDIC) in crops grown in calcareous soils. Therefore, the central aim of this work was to prepare new freeze-dried Fe products, using a biotechnological-based process, from two siderophores bacterial (Azotobacter vinelandii and Bacillus subtilis) cultures (which previously evidenced high Fe complexation ability at pH 9) and test their capacity for amending IDIC of soybean grown in calcareous soils. Results have shown that A. vinelandii iron fertilizer was more stable and interacted less with calcareous soils and its components than B. subtilis one. This behavior was noticeable in pot experiments where chlorotic soybean plants were treated with both fertilizer products. Plants treated with A. vinelandii fertilizer responded more significantly than those treated with B. subtilis one, when evaluated by their growth (20% more dry mass than negative control) and chlorophyll development (30% higher chlorophyll index than negative control) and in most parameters similar to the positive control, ethylenediamine-di(o-hydroxyphenylacetic acid). On average, Fe content was also higher in A. vinelandii-treated plants than on B. subtilis-treated ones. Results suggest that this new siderophore-based formulation product, prepared from A. vinelandii culture, can be regarded as a possible viable alternative for replacing the current nongreen Fe-chelating fertilizers and may envisage a sustainable and environment-friendly mending IDIC of soybean plants grown in calcareous soils.pt_PT
dc.description.sponsorshipCF would like to thank the support from his grant with reference no. SFRH/BD/95490/2013 from FCT.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3389/fpls.2019.01335pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/17173
dc.language.isoengpt_PT
dc.publisherFrontierspt_PT
dc.relationBiological production of siderophores and its application for correction of iron deficiencies in agronomic conditions
dc.relation.publisherversionhttps://www.frontiersin.org/articles/10.3389/fpls.2019.01335/fullpt_PT
dc.subjectBiotechnological-based iron fertilizerspt_PT
dc.subjectSustainable agriculturept_PT
dc.subjectFreeze-dried iron-bacterial siderophores productspt_PT
dc.subjectEnvironmental-friendly iron-chelatespt_PT
dc.subjectIron chlorosis correction of soybean plantspt_PT
dc.titleEvaluation of the Efficacy of Two New Biotechnological-Based Freeze-Dried Fertilizers for Sustainable Fe Deficiency Correction of Soybean Plants Grown in Calcareous Soilspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleBiological production of siderophores and its application for correction of iron deficiencies in agronomic conditions
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F95490%2F2013/PT
oaire.citation.startPage1335pt_PT
oaire.citation.titleFrontiers in Plant Sciencept_PT
oaire.citation.volume10pt_PT
person.familyNameSoares
person.givenNameEduardo
person.identifier93637
person.identifier.ciencia-idD612-0D0E-4984
person.identifier.orcid0000-0003-2280-5291
person.identifier.ridO-5908-2015
person.identifier.scopus-author-id7102060173
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb3ebdee1-84fa-4183-a1d8-c3cdcaaef219
relation.isAuthorOfPublication.latestForDiscoveryb3ebdee1-84fa-4183-a1d8-c3cdcaaef219
relation.isProjectOfPublication8169dba5-a4c4-4c0a-b4ed-519a2046b299
relation.isProjectOfPublication.latestForDiscovery8169dba5-a4c4-4c0a-b4ed-519a2046b299

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