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The irrigation salinity and harvesting affect the growth, chemical profile and biological activities of Polygonum maritimum L.

2019-11Journal article Restricted access
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dc.contributor.authorRodrigues, Maria Joao
dc.contributor.authorMonteiro, Ivo
dc.contributor.authorPlacines, Chloé
dc.contributor.authorCastañeda-Loaiza, Viana
dc.contributor.authorSlusarczyk, Sylwester
dc.contributor.authorMatkowski, Adam
dc.contributor.authorPereira, Catarina
dc.contributor.authorPousao-Ferreira, Pedro
dc.contributor.authorCustódio, Luísa
dc.date.accessioned2020-07-24T10:51:13Z
dc.date.available2020-07-24T10:51:13Z
dc.date.issued2019-11
dc.description.abstractPreviously, our group identified the halophyte Polygonum maritimum L. (sea knotgrass) as a promising source of ingredients for the cosmetic, food, pharmaceutical and veterinarian industries. To further explore this species, and to guarantee the supply of biomass for commercial purposes, it is necessary to ensure its sustainable production while assuring the preservation of its chemical and biological properties. In this context, this work aimed to cultivate this species in greenhouse conditions and to determine the influence of specific agronomic conditions, namely irrigation salinity and harvest, on the plant's growth performance and biological properties of obtained biomass. For that purpose, plants were grown in a greenhouse and irrigated with water with different salinities (0, 100, 200, 300 and 600 mM of sodium chloride - NaCl). After six weeks of irrigation, plants were cut 7 cm above soil level and submitted to an additional two harvests with a six-week interval. Plant growth performance was evaluated in terms of plant height, leaf number and surface area, moisture, and productivity. Acetone extracts were prepared from aboveground organs and evaluated for chemical composition (by spectrophotometric methods, and by ultra-high-resolution mass spectrometry - UHRMS), and for in vitro antioxidant properties [radical-scavenging activity (RSA) on DPPH and ABTS, ferric reducing antioxidant power (FRAP) and metal chelating activity on iron (ICA) and copper (CCA)]. Extracts were also appraised for in vitro anti-inflammatory activity on lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. Increased salinity and multiple harvests reduced plant growth and yields; the highest productivity was obtained in plants irrigated with freshwater at 2nd harvest (346 g/m(2) of dried biomass). The extracts maintained the in vitro biological properties and interesting chemical profile, however, these depended on the irrigation salinity and harvest regime. The highest antioxidant activities were obtained in extracts from plants irrigated with freshwater at the 3rd harvest (DPPH: 96.2%; ABTS: 89.1%; CCA: 61.6%; FRAP: 136%). The extracts from biomass obtained in 1st the harvest of freshwater-irrigated plants, and from those treated with 100 and 200 mM of NaCl, had significant anti-inflammatory properties. The main compounds detected were mostly flavonols (myricetin and quercetin glycosides), which varied according to both irrigation salinity and harvest. Our results indicate that sea knotgrass can be cultivated in greenhouse conditions aiming industrial commercial applications, irrigated with freshwater or with irrigation solutions with moderate salinity. Moreover, produced biomass maintain the biological and chemical properties previously detected in plants collected from the wild.
dc.description.sponsorshipFoundation for Science and Technology (FCT)Portuguese Foundation for Science and Technology
dc.description.sponsorshipPortuguese National Budget [CCMAR/Multi/04326]
dc.description.sponsorshipGreenVet project [ALG-01-0145-FEDER-028876]
dc.description.sponsorshipFCTPortuguese Foundation for Science and Technology [SFRH/BD/94407/2013, SFRH/BD/116604/2016, IF/00049/2012]
dc.identifier.doi10.1016/j.indcrop.2019.111510
dc.identifier.issn0926-6690
dc.identifier.issn1872-633X
dc.identifier.urihttp://hdl.handle.net/10400.1/14205
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.subjectSalt stress tolerance
dc.subjectAntioxidant capacity
dc.subjectSeed-germination
dc.subjectWater relations
dc.subjectIn-vitro
dc.subjectInnovative products
dc.subjectMediterranean Basin
dc.subjectPotential source
dc.subjectHalophyte
dc.subjectTemperature
dc.titleThe irrigation salinity and harvesting affect the growth, chemical profile and biological activities of Polygonum maritimum L.
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04326%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F94407%2F2013/PT
oaire.citation.startPageUNSP 111510
oaire.citation.titleIndustrial Crops and Products
oaire.citation.volume139
oaire.fundingStream5876
oaire.fundingStreamSFRH
person.familyNameRodrigues
person.familyNamePlacines
person.familyNameCastañeda-Loaiza
person.familyNameGuerreiro Pereira
person.familyNameCustódio
person.givenNameMaria João
person.givenNameChloé
person.givenNameViana
person.givenNameCatarina Alexandra
person.givenNameLuísa
person.identifierR-004-VNG
person.identifierNmxO5SIAAAAJ
person.identifier.ciencia-id2514-0E17-1D8D
person.identifier.ciencia-id2319-B2D8-AF48
person.identifier.ciencia-id4512-3435-689C
person.identifier.ciencia-id791B-C560-AEA2
person.identifier.orcid0000-0001-8732-710X
person.identifier.orcid0000-0001-8550-5099
person.identifier.orcid0000-0002-8839-1389
person.identifier.orcid0000-0002-1131-8773
person.identifier.orcid0000-0003-4338-7703
person.identifier.ridM-6101-2013
person.identifier.scopus-author-id56031608100
person.identifier.scopus-author-id15831018900
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
rcaap.rightsrestrictedAccess
rcaap.typearticle
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