A5049027255- Research on Leishmaniasis Studies
- Insect Pest Control Strategies
- Plant biochemistry and biosynthesis
- Geotechnical and construction materials studies
- Trypanosoma species research and implications
- Hygrothermal properties of building materials
- Synthesis and Biological Evaluation
- Recycling and utilization of industrial and municipal waste in materials production
- Mosquito-borne diseases and control
- Essential Oils and Antimicrobial Activity
- Malaria Research and Control
- Bamboo properties and applications
- Insect and Pesticide Research
- Biocrusts and Microbial Ecology
- Piperaceae Chemical and Biological Studies
- Plant and Biological Electrophysiology Studies
- Viral Infectious Diseases and Gene Expression in Insects
- Insect symbiosis and bacterial influences
- Analytical Chemistry and Chromatography
- Chemical synthesis and alkaloids
- Plant Virus Research Studies
- Plant Gene Expression Analysis
- biodegradable polymer synthesis and properties
- Building materials and conservation
- Insect and Arachnid Ecology and Behavior
Ecologie des Forêts de Guyane
2015-2024
Laboratoire de Chimie des Polymères Organiques
2012-2023
Université des Antilles
2023
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2016-2023
Centre National de la Recherche Scientifique
2013-2023
University of French Guiana
2017-2023
AgroParisTech
2016-2023
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2021-2023
Université de Bordeaux
2013-2014
Université Toulouse III - Paul Sabatier
2007-2012
REF (Hevb1) and SRPP (Hevb3) are two major components of Hevea brasiliensis latex, well known for their allergenic properties. They obviously taking part in the biosynthesis natural rubber, but exact function is still unclear. could be involved defense/stress mechanisms after tapping or directly acting on isoprenoid biosynthetic pathway. The structure these proteins not described. In this work, it was discovered that has amyloid properties, contrary to SRPP. We investigated by CD, TEM,...
Abstract Across the evolutionary history of insects, shift from nitrogen-rich carnivore/omnivore diets to nitrogen-poor herbivorous was made possible through symbiosis with microbes. The turtle ants Cephalotes possess a conserved gut microbiome which enriches nutrient composition by recycling metabolic waste increase production amino acids. This enrichment is assumed benefit host, but we do not know what extent. To gain insights into nitrogen assimilation in ant cuticle use bacterial...
The virus protein linked to the genome (VPg) of plant potyviruses is a 25‐kDa covalently attached genomic RNA 5′ end. It was previously reported that VPg binds specifically eIF4E, mRNAcap‐binding eukaryotic translation initiation complex. We performed spectroscopic study interactions between lettuce eIF4E and from mosaic (LMV). cap analogue m 7 GDP bind at two distinct sites with similar affinity ( K d = 0.3 µ ). A deeper examination interaction pathway showed binding one ligand induces...
Challenging evaluation of tropical forest biodiversity requires the reporting taxonomic diversity but also systematic characterization wood properties in order to discover new promising species for timber industry. Among properties, dimensional stability is regarded as a major technological characteristic validate whether adapted commercial uses. Cell structure and organization are known influence drying shrinkage making density microfibrils angle markers choice predict stability. On...
Serratia marcescens is a bacterial species widely found in the environment, which very efficiently colonizes mosquitoes. In this study, we isolated red-pigmented S. strain from our mosquito colony (called VA). This red pigmentation caused by production of prodigiosin, molecule with antibacterial properties. To investigate role prodigiosin on mosquito- interactions, produced two white mutants VA random mutagenesis. Whole genome sequencing and chemical analyses suggest that one mutant has...
Sustainable construction materials and local solutions are crucial for meeting urbanisation demands in tropical regions like French Guiana. Poured earthen construction, primarily composed of soil, offers a cost-effective environmentally friendly alternative. To ensure good consistency pouring, the use dispersants to deflocculate clay particles is an effective strategy that reduces water demand while enhancing material's physical mechanical properties. However, variability soil impacts...
Two new dihydrochalcones (<b>1, 2</b>), as well eight known compounds, piperaduncin C (<b>3</b>), 2′,6′-dihydroxy-4′-methoxydihydrochalcone (<b>4</b>), 4,2′,6′-trihydroxy-4′-methoxydihydrochalcone (<b>5</b>), 4-hydroxy-3,5-bis(3-methyl-2-butenyl)-benzoic acid (<b>6</b>), 3,5-bis(3-methyl-2-butenyl)-4-methoxybenzoic (<b>7</b>), 4-hydroxy-3-(3-methyl-2-butenoyl)-5-(3-methyl-2-butenyl)-benzoic (<b>8</b>), 2,2-dimethyl-8-(3-methyl-2-butenyl)-2<i>H</i>-1-chromene-6-carboxylic (<b>9</b>), and...
A series of ring substituted 3-phenyl-1-(1,4-di-N-oxide quinoxalin-2-yl)-2-propen-1-one derivatives were synthesized and tested for in vitro leishmanicidal activity against amastigotes Leishmania amazonensis axenical cultures murine infected macrophages. Structure-activity relationships demonstrated the importance a radical methoxy at position R3', R4' R5'. (2E)-3-(3,4,5-trimethoxy-phenyl)-1-(3,6,7-trimethyl-1,4-dioxy-quinoxalin-2-yl)-propenone was most active. Cytotoxicity on macrophages...
A pharmacological screening of the ethanol extract and fractions Blepharodon nitidum led to isolation fourteen compounds, two which, 24-hydroperoxycycloart-25-en-3β-ol 25-hydroperoxycycloart-23-en-3β-ol, exhibited in vitro anti-Mycobacterium tuberculosis antileishmanial activities, as well significant cytotoxic activity against a panel human tumor cell lines.
A major requirement for malaria elimination is the development of transmission-blocking interventions. In vitro bioassays currently mostly rely on use very few Plasmodium falciparum reference laboratory strains isolated decades ago. To fill a piece gap between experimental models and natural systems, purpose this work was to determine if culture-adapted field isolates P. are suitable in targeting functional maturity male gametocytes: exflagellation.Plasmodium were adapted culture before...