A5016332428- Plant Physiology and Cultivation Studies
- Postharvest Quality and Shelf Life Management
- Horticultural and Viticultural Research
- Cassava research and cyanide
- Nuts composition and effects
- Plant Reproductive Biology
- Plant Stress Responses and Tolerance
- Spectroscopy and Chemometric Analyses
- Phytochemicals and Antioxidant Activities
- Agriculture and Rural Development Research
- Nanocomposite Films for Food Packaging
- Plant Pathogens and Fungal Diseases
- Antioxidant Activity and Oxidative Stress
- Garlic and Onion Studies
- Fermentation and Sensory Analysis
- Date Palm Research Studies
- Potato Plant Research
- Plant Micronutrient Interactions and Effects
- Polysaccharides and Plant Cell Walls
- Banana Cultivation and Research
- Plant responses to elevated CO2
- Plant Surface Properties and Treatments
- Fungal Plant Pathogen Control
- Microbial Metabolites in Food Biotechnology
- Plant tissue culture and regeneration
Sécurité et Qualité des Produits d'Origine Végétale
2013-2024
Université d'Avignon et des Pays de Vaucluse
2010-2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2024
Institut National de la Recherche Agronomique
1999-2002
Centre National de la Recherche Scientifique
1993-1995
Sorbonne Université
1991
Quantitative trait loci (QTL) mapping is a step towards the identification of factors regulating traits such as fruit ascorbic acid content. A previously identified QTL controlling variations in tomato has been fine mapped and reveals that polygenic epistatic architecture. monodehydroascorbate reductase (MDHAR) allele candidate for proportion increase The MDHAR enzyme active different stages ripening, shows increased activity introgression lines containing wild-type (Solanum pennellii)...
Summary The GDP‐ d ‐mannose 3,5‐epimerase (GME, EC 5.1.3.18), which converts to l ‐galactose, is generally considered be a central enzyme of the major ascorbate biosynthesis pathway in higher plants, but experimental evidence for its role planta lacking. Using transgenic tomato lines that were RNAi‐silenced GME, we confirmed GME does indeed play key regulation plants. In addition, exhibited growth defects affecting both cell division and expansion. A further remarkable feature plants was...
In order to elucidate the regulation mechanisms of carotenoid biosynthesis in apricot fruit (Prunus armeniaca), content and carotenogenic gene expression were analysed as a function ethylene production two colour-contrasted varieties. Fruits from Goldrich (GO) orange, while Moniqui (MO) fruits white. Biochemical analysis showed that GO accumulated precursors uncoloured carotenoids, phytoene phytofluene, coloured carotenoid, beta-carotene, only phytofluene but no beta-carotene. Physiological...
Abstract A theory of fruit climacteric ethylene emission was developed and used as the basis a simulation model called ETHY. According to theory, biosynthetic pathway is supplied by ATP regulated 1-aminocyclopropane-1-carboxylic acid (ACC) synthase ACC oxidase. The conjugation with malonate form MACC taken into account way decrease availability ACC. Because seasonal increase volume, dilution biochemical compounds in ETHY account. Finally, diffusion across skin considered. took effect...
ABSTRACT: Unique gas barrier properties of hydrophilic films (wheat gluten‐based material and synthetic polymer) have been tested through practical application such as modified atmosphere packaging. Mushrooms packed under microporous stored at 10 °C 20 high relative humidity (> 92%). Atmospheric quality changes (cap opening, color) were assessed during storage. steady state atmospheres, poor in both oxygen carbon dioxide, observed, regardless the temperature film used, owing to their...
After canning, pear pieces turn occasionally from whitish-beige to pink. Conditions were set up obtain this discoloration systematically and investigate its mechanism. Canned pears showed a significantly lower L* coordinate compared with fresh pears, the of canned decreased decreasing pH. The values a* b* coordinates increased after processing, increase being greater for more acidic pH values, corresponding redder colors. polyphenol concentrations significantly, mainly due loss procyanidins....
Genomic selection (GS) is a breeding approach which exploits genome-wide information and whose unprecedented success has shaped several animal plant schemes through delivering their genetic progress. This the first study assessing potential of GS in apricot (Prunus armeniaca) to enhance postharvest fruit quality attributes. predictions were based on F1 pseudo-testcross population, comprising 153 individuals with contrasting traits. They phenotyped for physical biochemical metrics climatic...
The O2 and CO2 respiration rates of untreated irradiated onion bulbs (Allium cepa) at 0.15 0.30 kGy were measured 4, 10 20 °C. rate increased for 24 h after treatment from 0.19 mmole kg−1 h−1 °C control samples up to 0.26 0.39 0.3 onions respectively. Respiratory quotient (RQ) with temperature. Q10 the (1.61) was lower than that any other plant tissue, but it storage duration irradiation dose. steadily over 25 weeks 4 °C, while decreased during same period a peak observed treatment. apparent...
Abstract Dormant dehusked Avena sativa L. (cv. Moyencourt) caryopses germinated easily at 10°C, but their germination was poor 25 and 30°C. Ethanol overcame dormancy allowed the last two temperatures when given continuously concentrations ranging from 50 to 200 m , or higher beginning of imbibition. also promoted in hypoxia. Other alcohols which were good substrates for alcohol dehydrogenase (ADH: EC 1.1.1.1), such as butanol-1, propanol-1 2-propen-1-ol, had same stimulatory effect ethanol,...
Changing the balance between ascorbate, monodehydroascorbate and dehydroascorbate in plant cells by manipulating activity of enzymes involved ascorbate synthesis or recycling oxidized reduced forms leads to multiple phenotypes. A systems biology approach including network analysis transcriptome, proteome metabolites RNAi lines for oxidase, reductase galactonolactone dehydrogenase has been carried out orange fruit pericarp tomato (Solanum lycopersicum). The transcriptome oxidase is inversed...