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

Näytä kaikki kuvailutiedot



Pysyväisosoite

http://hdl.handle.net/10138/334648

Lähdeviite

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

Julkaisun nimi: Root-Applied Glycinebetaine Decreases Nitrate Accumulation and Improves Quality in Hydroponically Grown Lettuce
Tekijä: Jokinen, Kari; Salovaara, Anna-Kaisa Johanna; Wasonga, Daniel; Edelmann, Minnamari; Simpura, Ilkka; Mäkelä, Pirjo
Tekijän organisaatio: Department of Agricultural Sciences
Crop Science Research Group
Department of Food and Nutrition
Food quality and safety: lipids, vitamins and other bioactive compounds
Helsinki Institute of Sustainability Science (HELSUS)
Plant Production Sciences
Päiväys: 2022-01-01
Kieli: eng
Sivumäärä: 9
Kuuluu julkaisusarjaan: Food Chemistry
ISSN: 0308-8146
DOI-tunniste: https://doi.org/10.1016/j.foodchem.2021.130558
URI: http://hdl.handle.net/10138/334648
Tiivistelmä: 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.
Avainsanat: 4111 Agronomy
glycinebetaine
nitrate
lettuce
Amino acid
Growth
Lactuca sativa
Minerals
Nutrient film technology
EXOGENOUS APPLICATION
NITROGEN FORMS
AMINO-ACIDS
BETAINE
ASSIMILATION
LEAVES
FRUITS
RED
Vertaisarvioitu: Kyllä
Tekijänoikeustiedot: cc_by
Pääsyrajoitteet: openAccess
Rinnakkaistallennettu versio: publishedVersion


Tiedostot

Latausmäärä yhteensä: Ladataan...

Tiedosto(t) Koko Formaatti Näytä
Food_Chemistry_2021.pdf 2.283MB PDF Avaa tiedosto

Viite kuuluu kokoelmiin:

Näytä kaikki kuvailutiedot