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Biostimulant and biopesticide potential of microalgae growing in piggery wastewater

2021-07Journal article Open access
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dc.contributor.authorFerreira, Alice
dc.contributor.authorMelkonyan, Lusine
dc.contributor.authorCarapinha, Sofia
dc.contributor.authorRibeiro, Belina
dc.contributor.authorFigueiredo, Daniel
dc.contributor.authorAvetisova, Gayane
dc.contributor.authorGouveia, Luisa
dc.date.accessioned2021-12-29T10:39:51Z
dc.date.available2021-12-29T10:39:51Z
dc.date.issued2021-07
dc.description.abstractABSTRACT: Pig farming generates highly polluting wastewaters which entail serious environmental issues when not adequately managed. Microalgae systems can be promising for cost, energy and environment-efficient treatment of piggery wastewater (PWW). Aside from clean water, the produced biomass can be used as biostimulants and biopesticides contributing to a more sustainable agriculture. Three microalgae (Tetradesmus obliquus, Chlorella protothecoides, Chlorella vulgaris) and one cyanobacterium (Synechocystis sp.) were selected after a preliminary screening in diluted wastewater (1:20) to treat PWW. The nutrient removals were 62-79% for COD (chemical oxygen demand), 84-92% for TKN (total Kjeldahl nitrogen), 79-92% for NH4+ and over 96% for PO43−. T. obliquus and C. protothecoides were the most efficient ones. After treating PWW, the produced biomass, at 0.5 g L−1, was assessed as a biostimulant for seed germination, root/shoot growth, and pigment content for tomato, watercress, cucumber, soybean, wheat, and barley seeds. We observed an overall increase on germination index (GI) of microalgae-treated seeds, owing to the development of longer roots, especially in T. obliquus and C. vulgaris treatments. The microalgae treatments were especially effective in cucumber seeds (75-138% GI increase). The biopesticide activity against Fusarium oxysporum was also evaluated at 1, 2.5 and 5 g L−1 of microalgae culture. Except for Synechocystis sp., all the microalgae tested inhibited the fungus growth, with T. obliquus and C. vulgaris achieving inhibitions above 40% for all concentrations.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFerreira, Alice... [et.al.] - Biostimulant and biopesticide potential of microalgae growing in piggery wastewater. In: Environmental Advances, 2021, Vol. 4, article nº 100062pt_PT
dc.identifier.doi10.1016/j.envadv.2021.100062pt_PT
dc.identifier.issn2666-7657
dc.identifier.urihttp://hdl.handle.net/10400.9/3643
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationALGAVALOR - Lisboa-01- 0247-FEDER-035234pt_PT
dc.relation(BBRI)- LISBOA-01-0145-FEDER-022059pt_PT
dc.relationPeople for tHe eurOpean bioENergy mIX
dc.relationDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
dc.relation.publisherversionhttps://doi.org/10.1016/j.envadv.2021.100062pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectMicroalgaept_PT
dc.subjectPiggery effluentpt_PT
dc.subjectWastewater treatmentpt_PT
dc.subjectCyanobacteriapt_PT
dc.titleBiostimulant and biopesticide potential of microalgae growing in piggery wastewaterpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePeople for tHe eurOpean bioENergy mIX
oaire.awardTitleDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/690925/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F144122%2F2019/PT
oaire.citation.titleEnvironmental Advancespt_PT
oaire.citation.volume4pt_PT
oaire.fundingStreamH2020
person.familyNameFerreira
person.familyNameRibeiro
person.familyNameFigueiredo
person.familyNameGouveia
person.givenNameAlice
person.givenNameBelina
person.givenNameDaniel
person.givenNameLuisa
person.identifierH-4046-2011
person.identifier.ciencia-idD115-8FF3-9097
person.identifier.ciencia-id181D-2CFA-B65A
person.identifier.ciencia-id581B-924A-84DD
person.identifier.orcid0000-0002-2397-3943
person.identifier.orcid0000-0001-5145-2486
person.identifier.orcid0000-0003-3201-5736
person.identifier.orcid0000-0003-0196-6360
person.identifier.scopus-author-id7004135834
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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