Background: Light is one of the most significant environmental factors affecting to the accumulation of flavonoids in fruits. The composition of the light spectrum has been shown to affect the production of phenolic compounds during fruit ripening. However, specific information on the biosynthesis of flavonoids in fruits in response to different wavelengths of light is still scarce. In the present study bilberry (Vaccinium myrtillus L.) fruits, which are known to be rich with anthocyanin compounds, were illuminated with blue, red, far-red or white light during the berry ripening process. Following the illumination, the composition of anthocyanins and other phenolic compounds was analysed at the mature ripening stage of fruits.
Results: All the three monochromatic light treatments had significant positive effect on the accumulation of total anthocyanins in ripe fruits compared to treatment with white light or plants kept in darkness. The elevated levels of anthocyanins were mainly due to a significant increase in the accumulation of delphinidin glycosides. A total of 33 anthocyanin compounds were detected in ripe bilberry fruits, of which six are novel in bilberry (cyanidin acetyl-3-O-galactose, malvidin acetyl-3-O-galactose, malvidin coumaroyl-3-O-galactose, malvidin coumaroyl-3-O-glucose, delphinidin coumaroyl-3-O-galactose, delphinidin coumaroyl-3-O-glucose).
Conclusions: Our results indicate that the spectral composition of light during berry development has significant effect on the flavonoid composition of ripe bilberry fruits.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4274681 | PMC |
| http://dx.doi.org/10.1186/s12870-014-0377-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
High red luminescence intensity under sunlight exposure of a PMMA polymer doped with a tetrakis Eu β-diketonate complex containing a benzimidazolium counterion.
RSC Adv
January 2025
Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo 05508-000 São Paulo SP Brazil
Article Synopsis
- New tetrakis Eu and Gd β-diketonate complexes with benzimidazolium as a counterion were synthesized using a one-pot method, and one specific complex was incorporated into a PMMA matrix showing excellent photonic features.
- Characterization techniques like ESI-MS, FTIR, and X-ray diffraction were used to analyze the complexes, revealing unique intermolecular interactions and stability of the PMMA-doped material at high temperatures.
- The study highlighted that the materials exhibited strong photoluminescence with significant red emission when exposed to various UV wavelengths and sunlight, suggesting their potential as efficient light-converting molecular devices.
Blue Light Damages Retinal Ganglion Cells Via Endoplasmic Reticulum Stress and Autophagy in Chickens.
Invest Ophthalmol Vis Sci
January 2025
Laboratory of Anatomy of Domestic Animals, National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Haidian, Beijing, China.
Purpose: Because chickens have excellent light perception properties, this study focused on investigating whether monochromatic light can cause photodamage in chicken retinal ganglion cells (RGCs).
Methods: Post-hatching day chickens were exposed to four different light-emitting diode light environments for five weeks, respectively, monochromatic blue light (480Â nm), green light (560Â nm), red light (660Â nm), or white light (6000 K). The mechanisms through which monochromatic light influences the structure of the chicken retina were analyzed by detecting the morphological structure of the retina, gene and protein expression levels, and the ultrastructure of the optic nerve.
On the Role of a Polymer Matrix in Enhancing Energy Transfer Efficiency Using Coumarin 6 and Rhodamine B as Donor and Acceptor Pairs.
Chem Asian J
January 2025
Universidad de Chile, Departamento de Quimica, Santiago, CHILE.
This study investigates the critical role of polymer matrices in optimizing luminescence and energy transfer, utilizing the commercial dyes Coumarin 6 (C6) and Rhodamine B (RhB) as a donor-acceptor pair. Solution-phase experiments revealed a dependence of energy transfer efficiency on solvent dielectric constant. Furthermore, embedding the dyes within Poly(methyl methacrylate) (PMMA) or Poly(vinyl butyral) (PVB) matrices significantly enhance energy transfer due to increased molecular proximity.
View Article and Find Full Text PDFSudden phototactic reversal induced by hypochlorous acid exposure in the bioluminescent ostracod crustacean, .
MicroPubl Biol
December 2024
Shimane University, Matsue, Shimane, Japan.
The reversal of phototaxis has been observed in a wide range of animal species. However, environmental chemicals that can cause a quick reversal of phototaxis have rarely been reported. Here we identified hypochlorous acid (HClO) as an inducer of phototactic reversal in , also known as sea fireflies.
View Article and Find Full Text PDFLight quality regulates growth and flavonoid content in a widespread forest understorey medicinal species Georgi.
Front Plant Sci
December 2024
CAS Key Laboratory of Forest Ecology and Silviculture, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.
Introduction: Introduction: Light is not only essential for plant photosynthesis and growth, but also acts as a signal to regulate its secondary metabolism. Despite the influence of light quality on the yield and flavonoid compounds in commercial crops is well-documented, its role in regulating wild understorey species, particularly medicine plants whose flavonoid biosynthesis driven by multiple spectral regions of canopy sunlight, is less understood.
Methods: To address it, we conducted a light-quality manipulation experiment on Georgi, a widespread understorey medicinal species, with light-emitting diodes (LED).
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!