A5062906488- Plant tissue culture and regeneration
- Coffee research and impacts
- Transgenic Plants and Applications
- CRISPR and Genetic Engineering
- Insect Resistance and Genetics
- Cocoa and Sweet Potato Agronomy
- Chromosomal and Genetic Variations
- Entomopathogenic Microorganisms in Pest Control
- Plant Molecular Biology Research
- Plant Stress Responses and Tolerance
- Plant Genetic and Mutation Studies
- Plant Virus Research Studies
- Rice Cultivation and Yield Improvement
- Plant nutrient uptake and metabolism
- Genetic Mapping and Diversity in Plants and Animals
- Growth and nutrition in plants
- Plant Disease Resistance and Genetics
- Plant responses to water stress
- Agricultural pest management studies
- GABA and Rice Research
- Light effects on plants
- Insect and Pesticide Research
- Agriculture and Rural Development Research
- Seed Germination and Physiology
- Photosynthetic Processes and Mechanisms
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2015-2024
Université de Montpellier
2009-2024
Institut de Recherche pour le Développement
2016-2024
Diversité, adaptation et développement des plantes
2019-2024
Instituto de Ecología
2020-2024
Agropolis International
2002-2020
Laboratoire des Interactions Plantes Micro-Organismes
2016-2020
Diversité, génomes et interactions micro-organismes-insectes
2017
Institut Agro Montpellier
2010
Département Biologie et Amélioration des Plantes
2009
Abstract Plant roots have a large range of functions, including acquisition water and nutrients, as well structural support. Dissecting the genetic molecular mechanisms controlling rice root development is critical for new ideotypes that are better adapted to adverse conditions production sustainably achieved yield potential. Most knowledge regarding gene networks involved in has been accumulated model dicotyledon plant species Arabidopsis thaliana . Rice, monocotyledon species, presents...
Here we report on the characterization of rice osa-miR827 and its two target genes, OsSPX-MFS1 OsSPX-MFS2, which encode SPX-MFS proteins predicted to be implicated in phosphate (Pi) sensing or transport. We first show by Northern blot analysis that is strongly induced Pi starvation both shoots roots. Hybridization situ confirms strong induction starvation, with signals concentrated mesophyll, epidermis ground tissues In parallel, analyzed responses OsSPX-MFS2 gene targets starvation. mRNA...
To investigate correlations between phenotypic adaptation to water limitation and drought-induced gene expression, we have studied a model system consisting of drought-tolerant line (R1) drought-sensitive (S1) sunflowers (Helianthus annuus L.) subjected progressive drought. R1 tolerance is characterized by the maintenance shoot cellular turgor. Drought-induced genes (HaElip1, HaDhn1, HaDhn2) were previously identified in tolerant line. The accumulation corresponding transcripts was compared...
Global warming is a major threat to agriculture worldwide. Between 2008 and 2013, some coffee producing countries in South Central America suffered from severe epidemics of leaf rust (CLR), resulting high economic losses with social implications for growers. The climatic events not only favoured the development pathogen but also affected physiological status plant. main objectives study were evaluate how plant modified by different environmental conditions impact on pathogenesis CLR identify...
Abstract Conventional American cultivars of coffee are no longer adapted to global warming. Finding highly productive and stable in different environments without neglecting quality characteristics has become a priority for breeders. In this study, new Arabica F1 hybrids clones were compared conventional varieties seven contrasting environments, yield, rust incidence volume the canopy. The was assessed through size, weight 100 beans, biochemical analysis (24 aroma precursors 31 volatiles...
Abstract Background Somatic embryogenesis (SE) is one of the most promising processes for large-scale dissemination elite varieties. However, many plant species, optimizing SE protocols still relies on a trial and error approach. We report first global scale transcriptome profiling performed at all developmental stages in coffee to unravel mechanisms that regulate cell fate totipotency. Results RNA-seq 48 samples (12 × 4 biological replicates) generated 90 million high quality reads per...
Abstract Background The fruity aromatic bouquet of coffee has attracted recent interest to differentiate high value market produce as specialty coffee. Although the volatile compounds present in green and roasted beans have been extensively described, no study yet linked varietal molecular differences greater abundance specific substances support aroma specificity coffees. Results This compared four Arabica genotypes including one, Geisha Especial, suggested generate Formal sensory...
The understorey origin of coffee trees and the strong plasticity Coffea arabica leaves in relation to contrasting light environments have been largely shown. adaptability changes was tested under controlled conditions by increasing illumination rate on C. var. Naryelis seedlings acclimated low observing leaf responses at three different developmental stages (juvenile, growing mature). Only mature proved capable adapting new conditions. In these leaves, major mechanisms were found contribute...
In general, the current industrial somatic embryogenesis (SE) propagation processes for coffee are costly because they not productive enough. We show that SE-derived plantlets from C. arabica hybrids were temporarily − between 10 and 25 weeks of development in nursery able to root with a high success rate (up 90%) whatever genotype tested, before gradually losing capacity. took advantage this transient rooting capacity, probably due rejuvenation process occurring during SE, establish new...
In the present paper, we evaluated implementation of a seed production system based on exploitation male sterility coffee. We studied specifically combination between CIR-SM01 and Marsellesa® (a Sarchimor line), which provides hybrid population called Starmaya. demonstrated that establishment garden under natural pollination is possible produces sufficient amount seeds to be multiplied efficiently economically. As expected for F1 hybrid, performances Starmaya are highly superior conventional...
It is now well documented that moonlight affects the life cycle of invertebrates, birds, reptiles, and mammals. The lunisolar tide also well-known to alter plant growth development. However, although plants are known be very photosensitive, few studies have been undertaken explore effect on physiology.Here for first time we report a massive transcriptional modification in Coffea arabica genes under full conditions, particularly at moon zenith 3 h later. Among 3387 deregulated found our...
Abstract Background The plant miRNAs represent an important class of endogenous small RNAs that guide cleavage mRNA target or repress its translation to control development and adaptation stresses. MiRNAs are nuclear-encoded genes transcribed by RNA polymerase II, producing a primary precursor is subsequently processed DCL1 RNase III Dicer-like protein. In rice hundreds have been described predicted, but little known on their precursors which criteria distinguish them from siRNAs. Here we...
Despite the importance of DREB1D gene (also known as CBF4) in plant responses to water deficit and cold stress, studies analysing its regulation by transgenic approaches are lacking. In current work, a functional study three CcDREB1D promoter haplotypes (named HP15, HP16 HP17) isolated from drought-tolerant drought-sensitive clones Coffea canephora was carried out plants C. arabica stably transformed Agrobacterium tumefaciens their ability regulate expression uidA reporter response mimicked...
So far, the main Arabica coffee breeding programmes in Latin America have focused on selection of varieties adapted to intensive full-sun farming systems. Meanwhile, little attention has been paid specifically shade, which is characteristic agroforestry systems (AFS). Yet specialty sector currently expanding and seeking specific sensory qualities related exotic no programme exists create new for this type market. Two trials were set up: one full sun other under shade. F1 hybrids their...
Abstract Coffea canephora (2n = 2x 22 chromosomes) is a species with extensive genetic diversity and desirable agronomic traits for coffee breeding programs. However, obtaining new cultivar through conventional techniques may require more than 30 years of crossing cycles selection, which hampers the effort keeping up market demands rapidly proposing resilient to climate change varieties. Although, application modern biotechnology tools such as precision engineering technologies enable faster...
Abstract The RNAzol RT reagent was used to provide pure RNA from human cells. We develop a protocol using extract plants tissues and demonstrate that this extraction method works not only at room temperature but also elevated temperatures provides the simplest most effective single-step undegraded directly tropical in field. complex field environment opens up way for studying gene-environment interactions transcriptome level decipher regulatory network involved multiple-stress responses.