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The effects of biostimulants, biofertilizers and water-stress on nutritional value and chemical composition of two spinach genotypes (Spinacia oleracea L.)

2019Artigo científico Acesso aberto
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dc.contributor.authorPereira, Carla
dc.contributor.authorDias, Maria Inês
dc.contributor.authorPetropoulos, Spyridon Α.
dc.contributor.authorPlexida, Sofia
dc.contributor.authorChrysargyris, Antonios
dc.contributor.authorTzortzakis, Nikos
dc.contributor.authorCalhelha, Ricardo C.
dc.contributor.authorIvanov, Marija
dc.contributor.authorStojković, Dejan
dc.contributor.authorSoković, Marina
dc.contributor.authorBarros, Lillian
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2020-06-22T10:18:07Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2020-06-22T10:18:07Z
dc.date.issued2019
dc.description.abstractIn the present study, the e ect of biostimulants application on the nutritional quality and bioactive properties of spinach cultivated in protected environment under water stress conditions was evaluated. For this purpose, four commercially available biostimulant products (Megafol (MEG), Aminovert (AM), Veramin Ca (V), Twin Antistress (TA), and two spinach genotypes (Fuji F1 and Viroflay) were tested under two irrigation regimes (normal irrigation (W+), and water-holding (W–). Fat and carbohydrates content was favored by water stress when Megafol (MEGW+) and Veramin (VW+) were applied on Fuji plants, while calorific value was also increased by MEGW+ treatment. In contrast, protein and ash content increased when AMW– and TAW+ were applied on Viroflay plants. Ra nose and glucose were the most abundant sugars, followed by sucrose and fructose, with the highest contents recorded for Fuji plants when AMW+ (fructose, glucose and total carbohydrates), CW– (sucrose), and TAW– (ra nose) treatments were applied. Regarding organic acids, oxalic and malic acid which had the highest contents for the TAW– (Viroflay plants) and AMW– (Fuji plants) treatments, respectively. - and -tocopherol were the only isoforms detected with MEGW– and VW– inducing the biosynthesis of -tocopherol, while AMW+ increased -tocopherol content in Fuji plants. The main fatty acids were -linolenic and linoleic acids which were detected in the highest amounts in AMW–, AMW+, and TAW+ the former and in AMW–, VW–, and CW+ the latter. Regarding phenolic compounds content, peak 12 (5,30,40-Trihydroxy-3-methoxy-6:7-methylenedioxyflavone-40-glucuronide) was the most abundant compound, especially in Viroflay plants under normal irrigation and no biostimulants added (CW–). The antioxidant and cytotoxic activity of the tested samples did not show promising results when compared with the positive controls, while a variable antibacterial activity was recorded depending on the tested biostimulant, irrigation regime and genotype. In conclusion, a variable e ect of the tested biostimulants and irrigation regimes was observed on bioactive properties and chemical composition of both spinach genotypes which highlights the need for further research in order to make profound conclusions regarding the positive effects of biostimulants under water stress conditions.
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and FEDER under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2019); national funding by FCT, P.I., through the institutional scientific employment program-contract for M.I.D., R.C.C. and L.B.; C.P. contract though the celebration of program-contract foreseen in No. 4, 5 and 6 of article 23º of Decree-Law No. 57/2016, of 29th August, amended by Law No. 57/2017, of 19th July; to FEDER-Interreg España-Portugal programme for financial support through the project 0377_Iberphenol_6_E and TRANSCoLAB 0612_TRANS_CO_LAB_2_P.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationPereira, Carla; Dias, Maria Inês; Petropoulos, Spyridon A.; Plexida, Sofia; Chrysargyris, Antonios; Tzortzakis, Nikos; Calhelha, Ricardo C.; Ivanov, Marija; Stojković, Dejan; Soković, Marina; Barros, Lillian; Ferreira, Isabel C.F.R. (2019). The effects of biostimulants, biofertilizers and water-stress on nutritional value and chemical composition of two spinach genotypes (Spinacia oleracea L.). Molecules. ISSN 1420-3049. 24:24, p. 1-28en_EN
dc.identifier.doi10.3390/molecules24244494en_EN
dc.identifier.urihttp://hdl.handle.net/10198/22289
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.subjectAntimicrobial propertiesen_EN
dc.subjectAntioxidant activitiesen_EN
dc.subjectBioactive propertiesen_EN
dc.subjectBiostimulantsen_EN
dc.subjectOxalic aciden_EN
dc.subjectPhenolic compoundsen_EN
dc.subjectSpinachen_EN
dc.subjectSpinacia oleracea Len_EN
dc.subjectTocopherolsen_EN
dc.subjectWater stressen_EN
dc.titleThe effects of biostimulants, biofertilizers and water-stress on nutritional value and chemical composition of two spinach genotypes (Spinacia oleracea L.)en_EN
dc.typejournal article
dspace.entity.typePublication
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person.familyNameFerreira
person.givenNameCarla
person.givenNameMaria Inês
person.givenNameRicardo C.
person.givenNameLillian
person.givenNameIsabel C.F.R.
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rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
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