ArticlePlants (Basel, Switzerland)2019
Anthocyanin in the Vacuole of Red Onion Epidermal Cells Quenches Other Fluorescent Molecules.
Article in Plants (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 27 citations in OpenAlex.
- The Research of New Natural Spontaneous FertileInternational journal of molecular sciences · 2026Article
- Genome-wide analysis of the UGT gene family inFrontiers in plant science · 2026Article
- Optimization of Anthocyanin Extraction from Purple Sweet Potato Peel (Foods (Basel, Switzerland) · 2025Article
- Autofluorescence and Metabotyping of Soybean Varieties Using Confocal Laser Microscopy and High-Resolution Mass Spectrometric Approaches.Plants (Basel, Switzerland) · 2025Article
- A New Fluorescence Band of Anthocyanins as a Simple Oxidation Biomarker of Food Products.Molecules (Basel, Switzerland) · 2025Article
- Supercritical COPlants (Basel, Switzerland) · 2025Article
- The Content of Anthocyanins in Cowpea (Plants (Basel, Switzerland) · 2023Article
- Complexation with Polysaccharides Enhances the Stability of Isolated Anthocyanins.Foods (Basel, Switzerland) · 2023Article
- Autofluorescence-Based Investigation of Spatial Distribution of Phenolic Compounds in Soybeans Using Confocal Laser Microscopy and a High-Resolution Mass Spectrometric Approach.Molecules (Basel, Switzerland) · 2022Article
- Identification and Spatial Distribution of Bioactive Compounds in SeedsPlants (Basel, Switzerland) · 2022Article
- Onion anthocyanins: Extraction, stability, bioavailability, dietary effect, and health implications.Frontiers in nutrition · 2022Review
- Subcellular Localization and Vesicular Structures of Anthocyanin Pigmentation by Fluorescence Imaging of Black Rice (Plants (Basel, Switzerland) · 2021Article
- Anthocyanins FromFrontiers in plant science · 2021Review
- Metabolome-Based Discrimination Analysis of Shallot Landraces and Bulb Onion Cultivars Associated with Differences in the Amino Acid and Flavonoid Profiles.Molecules (Basel, Switzerland) · 2020Article
- Optimisation approaches for concurrent transmitted light imaging during confocal microscopy.Plant methods · 2015Article
Corrections and comments
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Authors and funding
1 author at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Peels from the inner epidermis of onion bulbs are a model system in plant cell biology. While the inner epidermis of red onions is characteristically white, small patches of cells sometimes redden, containing vacuolar anthocyanin. This study investigated the spectroscopic properties of these anthocyanic cells. When fluorescent dyes were loaded into the vacuole of onion epidermal cells, the anthocyanic cells showed decreased dye fluorescence. This decrease was observed for fluorescein and carboxyfluorescein that are pumped into the vacuole by anion transporters, for acridine orange which acid loads into the vacuole, and for the fluorescent sugar analogue esculin loaded into the vacuole by sucrose transporters. Similar decreases in carboxyfluorescein fluorescence were observed when dye was loaded into the vacuoles of several other plant species, but decreases were not observed for dyes resident in the tonoplast membrane. As cellular physiology was unaffected in the anthocyanic cells, with cytoplasmic streaming, vacuolar and cytoplasmic pH not being altered, the decreased dye fluorescence from the anthocyanic cells can be attributed to fluorescence quenching. Furthermore, because quenching decreased with increasing temperature. It was concluded, therefore, that vacuolar anthocyanin can statically quench other fluorescent molecules in vivo, an effect previously demonstrated for anthocyanin in vitro.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.