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GNPS - Chrysobalanaceae plant species

ABSTRACT: The present dataset was applied to investigate the structural characterization of flavonoid-O-glycoconjugates using massive molecular networks embedding information based on chemical and taxonomical data (including previous findings on mechanistically and struc-turally gas-phase chemistry of flavonoids, plant species and metabolic distributions).

INSTRUMENT(S): 6520A Quadrupole Time-of-Flight LC/MS

ORGANISM(S): Couepia Grandiflora Parinari Excelsa (ncbitaxon:1186173) Hirtella Hebeclada (ncbitaxon:1272972) Licania Hoehnei Licania Kunthiana (ncbitaxon:544667) Licania Humilis

SUBMITTER: Norberto Peporine Lopes

PROVIDER: MSV000082164 | GNPS | Tue Mar 13 21:03:00 GMT 2018

REPOSITORIES: GNPS

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Mass Spectral Similarity Networking and Gas-Phase Fragmentation Reactions in the Structural Analysis of Flavonoid Glycoconjugates.

Pilon Alan Cesar AC Gu Haiwei H Raftery Daniel D Bolzani Vanderlan da Silva VDS Lopes Norberto Peporine NP Castro-Gamboa Ian I Carnevale Neto Fausto F

Analytical chemistry 20190731 16

Flavonoids represent an important class of natural products with a central role in plant physiology and human health. Their accurate annotation using untargeted mass spectrometry analysis still relies on differentiating similar chemical scaffolds through spectral matching to reference library spectra. In this work, we combined molecular network analysis with rules for fragment reactions and chemotaxonomy to enhance the annotation of similar flavonoid glyconjugates. Molecular network topology pro ...[more]

PMID: 31313915

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Chrysobalanaceae plant species

Project description:The present dataset was applied to investigate the structural characterization of flavonoid-O-glycoconjugates using massive molecular networks embedding information based on chemical and taxonomical data (including previous findings on mechanistically and struc-turally gas-phase chemistry of flavonoids, plant species and metabolic distributions).

2018-03-13 | MSV000082164 | MassIVE

Metabolic profiling and transcriptome analysis provide insights into the accumulation of flavonoids in chayote fruit during storage

Project description:Chayote (Sechium edule) fruits are rich in flavonoids, folate, and low-calorie food. However, studies about the flavonoids and regulatory mechanism of flavonoid synthesis in chayote fruits was still unclear. In present study, a transcriptome analysis and metabolite profiling of chayote fruits at three different storage stages were conducted to explore the flavonoid compositions and gene expression associated with flavonoid synthesis. Through the UPLC-MS/MS analysis, a total of 57 flavonoid compounds were detected. Of these, 42 flavonoid glycosides were significantly differential accumulation in chayote fruits at three different storage stages. Many genes associated with flavonoid synthesis were differentially expressed in chayote fruits at three different storage stages through RNA-seq analysis, including structural genes and some TFs. There was a high correlation between RNA-seq analysis and metabolite profiling, and the expression level of candidate genes in the flavonoid synthesis pathway were consistent with the dynamic changes of flavonoids. In addition, one R2R3-MYB transcription factor, FSG0057100, was defined as the critical regulatory gene of flavonoid synthesis. Furthermore, we treated chayote fruits during storage with phenylalanine, and the results show exogenous phenylalanine applications might promote the flavonoid synthesis. Phenylalanine is a effective additive to maintain or improve the total content flavonoids in chayote fruit during storage, can apply the phenylalanine in the postharvest storage of chayote. The above results not only make us better understand the molecular mechanism of flavonoid synthesis in chayote fruits, but also contribute to the promotion and application of chayote products.

2022-10-05 | GSE214641 | GEO

The function of FtMYBs in regulating the synthesis of flavonoids in Fagopyrum tartaricum under drought stress

Project description:Flavonoid is an important secondary metabolite, which makes an important contribution to plant resistance to abiotic stress and human health. Fagopyrum tataricum (Tartary buckwheat) itself contains more flavonoids, so exploring the regulation of Tartary buckwheat flavonoid synthesis can provide a solid theoretical basis for the cultivation of new Tartary buckwheat varieties with high nutrition. In this paper, we studied the role of FtMYBs in regulating the biosynthesis of flavonoids in Tartary buckwheat.

2024-09-01 | GSE270048 | GEO

A flavonoid-attracted Aeromonas spp enhances plant Na_H1 resistance without cry-for-help [Bacteria_RNA-seq]

Project description:Flavonoids are stress-inducible metabolites important for plant-microbe interactions. In contrast to their well-known function in initiating rhizobia nodulation in legumes, it is unclear whether and how flavonoids may contribute to plant stress resistance through affecting non-nodulating bacteria in the root microbiome. Here we show how flavonoids preferentially attracts Aeromonadaceae in Arabidopsis thaliana root microbiome and how flavonoid-dependent recruitment of an Aeromona spp. results in enhanced plant Na_H1 resistance.

2022-10-19 | GSE184873 | GEO

A flavonoid-attracted Aeromonas spp enhances plant drought resistance without cry-for-help [Plant_RNA-seq]

2022-10-19 | GSE184872 | GEO

Transcriptomic analyses of cacao cell suspensions in light and dark provide target genes for controlled flavonoid production

Project description:We performed RNA-Seq technology for quantification of differential expression of cacao cell suspensions under light/dark conditions. By obtaining over 15 millions of reads per sample, we cuantified the differential gene expression in structural, regulatory and light signaling genes associated with flavonoid biosynthesis. Our results indicated that light treatments can effectively regulate flavonoid profiles, shifting catechin - epicatechin ratios, in particular as a response to switching from white to blue light. The results demonstrated that HY5, MYB12, ANR and LAR were differentially regulated under light/dark conditions and could be targeted by overexpression aiming to improve catechin synthesis in cell cultures. Additionally, co-expression analyses of late flavonoid biosynthetic genes ANS, ANR and LAR showed a larger number of shared partners in the dark compared to selective partners in white-blue treatment. In conclusion, our RNA-Seq analysis of cacao cells cultured under different light conditions provides a platform to dissect key aspects into the genetic regulatory network of flavonoids. These light-responsive candidate genes can be used further to modulate the flavonoid production in in vitro systems with value-added characteristics.

2021-05-16 | GSE114544 | GEO

Food-derived Compounds Apigenin and Luteolin Modulate mRNA Splicing of Introns with Weak Splice Sites

Project description:Cancer cells often exhibit extreme sensitivity to splicing inhibitors. We identified food-derived flavonoids, apigenin and luteolin, as compounds that modulate mRNA splicing at the genome-wide level, followed by proliferation inhibition. They bind to mRNA splicing-related proteins to induce a widespread change of splicing patterns in treated cells. Their inhibitory activity on splicing is relatively moderate, and introns with weak splice sites tend to be sensitive to them. Such introns remain unspliced, and the resulting intron-containing mRNAs are retained in the nucleus, resulting in the nuclear accumulation of poly(A)+ RNAs in these flavonoid-treated cells. Tumorigenic cells are more susceptible to these flavonoids than non-tumorigenic cells, both for the nuclear poly(A)+ RNA-accumulating phenotype and cell viability. This study illustrates the possible mechanism of these flavonoids to suppress tumor progression in vivo that were demonstrated by previous studies, and provides the potential of daily intake of moderate splicing inhibitors to prevent cancer development.

2019-11-25 | GSE128097 | GEO

Transcriptomic Analysis Reveals Flavonoid Biosynthesis of Syringa oblata Lindl. in Response to Different Light Intensity

Project description:Background: Hazy weather significantly increase air pollution and affect light intensity which may also affect medicinal plants growth. Syringa oblata Lindl. (S. oblata), an effective anti-biofilm medicinal plants, is also vulnerable to changes in plant photoperiods and other abiotic stress responses. Rutin, one of the flavonoids, is the main bioactive ingredient in S. oblata that inhibits Streptococcus suis biofilm formation. Thus, the present study aims to explore the biosynthesis and molecular basis of flavonoids in S. oblata in response to different light intensity. Results: In this study, it was shown that compared with natural (Z0) and 25% ~ 35% (Z2) light intensities, the rutin content of S. oblata under 50% ~ 60% (Z1) light intensity increased significantly. In addition, an integrated analysis of metabolome and transcriptome was performed using light intensity stress from two kinds of light intensities which S. oblata was subjected to: Z0 and Z1. The results revealed that differential metabolites and genes were mainly related to the flavonoid biosynthetic pathway. We found out that 13 putative structural genes and a transcription factor bHLH were significantly up-regulated in Z1. Among them, integration analysis showed that 3 putative structural genes including 4CL1, CYP73A and CYP75B1 significantly up-regulated the rutin biosynthesis, suggesting that these putative genes may be involved in regulating the flavonoid biosynthetic pathway, thereby making them key target genes in the whole metabolic process. Conclusions: The present study provided helpful information to search for the novel putative genes that are potential targets for S. oblata in response to light intensity.

2019-11-25 | GSE137862 | GEO

Expression data from murine MPS I fibroblasts under flavonoids treatment

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2022-01-15 | GSE193583 | GEO

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Project description:The molecular mechanisms by which dietary fruits and vegetables confer cardiometabolic benefits remain poorly understood. Historically, these beneficial properties have been attributed to the antioxidant activity of flavonoids. Here, we reveal that the host metabolic benefits associated with flavonoid consumption actually hinge on gut microbial metabolism. However, flavonoids are consumed in a largely glycosylated form, rendering them poorly available for small intestinal absorption and subjecting them to microbial metabolism in the colon. We show that a single gut microbial flavonoid catabolite is sufficient to reduce diet-induced cardiometabolic disease burden in mice. Dietary supplementation with elderberry extract attenuated obesity and continuous delivery of the catabolite 4-hydroxphenylacetic acid was sufficient to reverse hepatic steatosis. Analysis of human gut metagenomes revealed that under one percent contains a flavonol catabolic pathway, underscoring the rarity of this process. Our study will impact the design of dietary and probiotic interventions to complement traditional cardiometabolic treatment strategies.

2022-11-30 | GSE188967 | GEO

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