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UVA, UVB Light, and Methyl Jasmonate, Alone or Combined, Redirect the Biosynthesis of Glucosinolates, Phenolics, Carotenoids, and Chlorophylls in Broccoli Sprouts

التفاصيل البيبلوغرافية
العنوان: UVA, UVB Light, and Methyl Jasmonate, Alone or Combined, Redirect the Biosynthesis of Glucosinolates, Phenolics, Carotenoids, and Chlorophylls in Broccoli Sprouts
المؤلفون: Melissa Moreira-Rodríguez, Vimal Nair, Jorge Benavides, Luis Cisneros-Zevallos, Daniel A. Jacobo-Velázquez
المصدر: International Journal of Molecular Sciences, Vol 18, Iss 11, p 2330 (2017)
بيانات النشر: MDPI AG, 2017.
سنة النشر: 2017
المجموعة: LCC:Biology (General)
LCC:Chemistry
مصطلحات موضوعية: UVA UVB light, UV radiation, methyl jasmonate, abiotic stress, glucosinolate profile, phenolic profile, carotenoid profile, chlorophyll profile, broccoli sprouts, Biology (General), QH301-705.5, Chemistry, QD1-999
الوصف: Broccoli sprouts contain health-promoting phytochemicals that can be enhanced by applying ultraviolet light (UV) or phytohormones. The separate and combined effects of methyl jasmonate (MJ), UVA, or UVB lights on glucosinolate, phenolic, carotenoid, and chlorophyll profiles were assessed in broccoli sprouts. Seven-day-old broccoli sprouts were exposed to UVA (9.47 W/m2) or UVB (7.16 W/m2) radiation for 120 min alone or in combination with a 25 µM MJ solution, also applied to sprouts without UV supplementation. UVA + MJ and UVB + MJ treatments increased the total glucosinolate content by ~154% and ~148%, respectively. MJ induced the biosynthesis of indole glucosinolates, especially neoglucobrassicin (~538%), showing a synergistic effect with UVA stress. UVB increased the content of aliphatic and indole glucosinolates, such as glucoraphanin (~78%) and 4-methoxy-glucobrassicin (~177%). UVA increased several phenolics such as gallic acid (~57%) and a kaempferol glucoside (~25.4%). MJ treatment decreased most phenolic levels but greatly induced accumulation of 5-sinapoylquinic acid (~239%). MJ treatments also reduced carotenoid and chlorophyll content, while UVA increased lutein (~23%), chlorophyll b (~31%), neoxanthin (~34%), and chlorophyll a (~67%). Results indicated that UV- and/or MJ-treated broccoli sprouts redirect the carbon flux to the biosynthesis of specific glucosinolates, phenolics, carotenoids, and chlorophylls depending on the type of stress applied.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1422-0067
Relation: https://www.mdpi.com/1422-0067/18/11/2330; https://doaj.org/toc/1422-0067
DOI: 10.3390/ijms18112330
URL الوصول: https://doaj.org/article/869bea68152041b9aec72669d3da7442
رقم الأكسشن: edsdoj.869bea68152041b9aec72669d3da7442
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:14220067
DOI:10.3390/ijms18112330