A5030029061- Antioxidant Activity and Oxidative Stress
- Garlic and Onion Studies
- Plant Physiology and Cultivation Studies
- Agriculture and Rural Development Research
- Agricultural Practices and Plant Genetics
- Horticultural and Viticultural Research
- Plant biochemistry and biosynthesis
- Urban Agriculture and Sustainability
- Potato Plant Research
- Plant Pathogens and Resistance
- Plant Reproductive Biology
- Photosynthetic Processes and Mechanisms
- Plant Pathogens and Fungal Diseases
- French Urban and Social Studies
- Retinoids in leukemia and cellular processes
- African Botany and Ecology Studies
- Phytochemicals and Antioxidant Activities
- Plant Disease Resistance and Genetics
- Plant tissue culture and regeneration
- Botanical Research and Applications
- Banana Cultivation and Research
- Postharvest Quality and Shelf Life Management
- Mediterranean and Iberian flora and fauna
- Silkworms and Sericulture Research
- Plant chemical constituents analysis
Université d'Angers
2012-2025
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2025
Institut Agro Rennes-Angers
2010-2022
Institut de recherche en horticulture et semences
2010-2021
Département Santé des Plantes et Environnement
2017
Institut National de la Recherche Agronomique
1991-2014
Université Nantes Angers Le Mans
2012
Institut de Génétique, Environnement et Protection des Plantes
2012
Texas Tech University
2002
Département Biologie et Amélioration des Plantes
1997
Since their inception, the French academic organizations dedicated to agricultural research have developed plant collections in genebanks, often within a public–private framework, support study of traits and development new improved varieties. In addition, since 2000s, centre for genomic resources has also been established France. Over last 20 years, this decentralized system, consisting genebanks resources, supported by national coordination structure. The objectives were align network...
Carotenogenesis has been extensively studied in fruits and flower petals. Transcriptional regulation is thought to be the major factor carotenoid accumulation these organs. However, little known about root The content of carrot germplasm varies widely. present study was conducted investigate transcriptional biosynthesis genes relation during early development up 3 months after sowing. HPLC analysis quantitative RT-PCR were compared quantify expression eight encoding enzymes white, yellow,...
The typically intense carotenoid accumulation in cultivated orange-rooted carrots (Daucus carota) is determined by a high protein abundance of the rate-limiting enzyme for biosynthesis, phytoene synthase (PSY), as compared with white-rooted cultivars. However, contrast to other accumulating systems, orange are characterized unusually levels α-carotene addition β-carotene. We found similarly increased leaves This has also been observed Arabidopsis thaliana lut5 mutant carrying defective...
The preservation of our genetic resources and production high-quality seeds depends on their ability to remain viable vigorous during storage. In a quantitative trait locus analysis seed longevity in Medicago truncatula, we identified the bZIP transcription factor ABSCISIC ACID INSENSITIVE5 (ABI5). Characterization Mt-abi5 insertion mutant revealed that both acquisition dormancy were severely impaired. Using transcriptomes developing seeds, created gene coexpression network ABI5 as regulator...
Accumulated in large amounts carrot, carotenoids are an important product quality attribute and therefore a major breeding trait. However, the knowledge of carotenoid accumulation genetic control this root vegetable is still limited. In order to identify variants linked character, we performed association mapping study with candidate gene approach. We developed original unstructured population broad basis avoid pitfall false positive detection due stratification. genotyped 109 SNPs located...
The use of biopesticides represents an alternative strategy to synthetic chemical products for crop protection. To promote their adoption and effective by growers, it is crucial understand modes action the optimal conditions application in crops, including compatibility with specific varieties. Through a series greenhouse experiments, this study describes development validation robust molecular diagnostic tool enabling evaluation defence gene activation. results identified plant resistance...
Direct spectrophotometric determination of quercetin content in onions ( Allium cepa L.) was investigated as a possible alternative to high-performance liquid chromatography (HPLC) analysis. Quercetin five onion varieties monitored at 362 nm and quantified using simple HPLC methods. revealed that 3,4'-Qdg 4'-Qmg comprised up 93% total flavonol detected the studied varieties. These major conjugates combined (3,4'-Qdg + 4'-Qmg) by correlated closely with spectrophotometer values. Correlation...
Background Selection of genes involved in metabolic pathways could target them differently depending on the position pathway and their role controlling fluxes. This hypothesis was tested carotenoid biosynthesis using population genetics phylogenetics. Methodology/Principal Findings Evolutionary rates seven distributed along pathway, IPI, PDS, CRTISO, LCYB, LCYE, CHXE ZEP, were compared dicot taxa. A survey deviations from neutrality expectations at these also undertaken cultivated carrot...
Carotenoids are important secondary metabolites involved in plant growth and nutritional quality of vegetable crops. These pigments highly accumulated carrot root, but knowledge about the impact environmental factors on their accumulation is limited. The purpose this work was to investigate variations carotenoid leaves roots. In work, carrots were grown during two contrasting periods maximize bioclimatic differences. leaves, chlorophyll contents lower less favorable growing conditions,...
Background: Selection of genes involved in metabolic pathways could target them differently depending on the position pathway and their role controlling fluxes.This hypothesis was tested carotenoid biosynthesis using population genetics phylogenetics.Methodology/Principal Findings: Evolutionary rates seven distributed along pathway, IPI, PDS, CRTISO, LCYB, LCYE, CHXE ZEP, were compared dicot taxa.A survey deviations from neutrality expectations at these also undertaken cultivated carrot...
Renewed consumer demand motivates the nutritional and sensory quality improvement of fruits vegetables. Specialized metabolites being largely involved in carrot, a better knowledge their phenotypic variability is required. A metabolomic approach was used to evaluate plasticity level carrot commercial varieties, over three years wide range cropping environments spread several geographical areas France. Seven groups have been quantified by HPLC or GC methods: sugars, carotenoids, terpenes,...
Epidemiological studies have shown that carrot consumption may be associated with a lower risk of developing several metabolic dysfunctions. Our group previously determined the Bolero (Bo) variety exhibited vascular and hepatic tropism using cellular models cardiometabolic diseases. The present study evaluated potential cardiovascular protective effect Bo, grown under two conditions (standard biotic stress (BoBS)), in apolipoprotein E-knockout (ApoE−/−) mice fed high fat diet (HFD). Effects...