Root-Applied Glycinebetaine Decreases Nitrate Accumulation and Improves Quality in Hydroponically Grown Lettuce

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dc.contributor.author Jokinen, Kari
dc.contributor.author Salovaara, Anna-Kaisa Johanna
dc.contributor.author Wasonga, Daniel
dc.contributor.author Edelmann, Minnamari
dc.contributor.author Simpura, Ilkka
dc.contributor.author Mäkelä, Pirjo
dc.date.accessioned 2021-09-28T06:15:02Z
dc.date.available 2021-09-28T06:15:02Z
dc.date.issued 2022-01-01
dc.identifier.citation Jokinen , K , Salovaara , A-K J , Wasonga , D , Edelmann , M , Simpura , I & Mäkelä , P 2022 , ' Root-Applied Glycinebetaine Decreases Nitrate Accumulation and Improves Quality in Hydroponically Grown Lettuce ' , Food Chemistry , vol. 366 , 130558 . https://doi.org/10.1016/j.foodchem.2021.130558
dc.identifier.other PURE: 166325221
dc.identifier.other PURE UUID: 5751c095-7745-44c2-9c10-24f215ac6dbe
dc.identifier.other WOS: 000696903000008
dc.identifier.other ORCID: /0000-0002-8757-6015/work/100694017
dc.identifier.other ORCID: /0000-0002-0992-3552/work/100697020
dc.identifier.uri http://hdl.handle.net/10138/334648
dc.description.abstract Leafy vegetables like lettuce (Lactuca sativa L.) naturally have high nitrate content and the European Commission has set maximum level for nitrate in lettuce. Glycinebetaine is an organic osmolyte alleviating plant stress, but its role in leaf nitrate accumulation remains unknown. The uptake of glycinebetaine by lettuce roots, and its potential to regulate lettuce nitrate content and improve plant quality were investigated. Two hydroponic lettuce experiments were conducted with different glycinebetaine application rates (Exp1 : 0, 1, 7.5, and 15 mM; Exp2: 0, 1 + 1 + 1, 1 + 10, and 4 mM). Plants were analyzed at varying time points. Root application resulted in glycinebetaine uptake and translocation to the leaves. Glycinebetaine concentrations > 7.5 mM reduced leaf nitrate up to 40% and increased leaf dry matter content. Glycinebetaine showed a positive effect on leaf mineral and amino acid composition. Thus, glycinebetaine could be a novel strategy to reduce the nitrate content in hydroponic lettuce. en
dc.format.extent 9
dc.language.iso eng
dc.relation.ispartof Food Chemistry
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 4111 Agronomy
dc.subject glycinebetaine
dc.subject nitrate
dc.subject lettuce
dc.subject Amino acid
dc.subject Growth
dc.subject Lactuca sativa
dc.subject Minerals
dc.subject Nutrient film technology
dc.subject EXOGENOUS APPLICATION
dc.subject NITROGEN FORMS
dc.subject AMINO-ACIDS
dc.subject BETAINE
dc.subject ASSIMILATION
dc.subject LEAVES
dc.subject FRUITS
dc.subject RED
dc.title Root-Applied Glycinebetaine Decreases Nitrate Accumulation and Improves Quality in Hydroponically Grown Lettuce en
dc.type Article
dc.contributor.organization Department of Agricultural Sciences
dc.contributor.organization Crop Science Research Group
dc.contributor.organization Department of Food and Nutrition
dc.contributor.organization Food quality and safety: lipids, vitamins and other bioactive compounds
dc.contributor.organization Helsinki Institute of Sustainability Science (HELSUS)
dc.contributor.organization Plant Production Sciences
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1016/j.foodchem.2021.130558
dc.relation.issn 0308-8146
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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