A5066616405- Mycorrhizal Fungi and Plant Interactions
- Legume Nitrogen Fixing Symbiosis
- African Botany and Ecology Studies
- Agronomic Practices and Intercropping Systems
- Agriculture and Rural Development Research
- Plant Parasitism and Resistance
- Soil Carbon and Nitrogen Dynamics
- Microfluidic and Bio-sensing Technologies
- Cellular Mechanics and Interactions
- Peanut Plant Research Studies
- Ecology and Vegetation Dynamics Studies
- Orbital Angular Momentum in Optics
- Plant Pathogens and Fungal Diseases
- Radioactivity and Radon Measurements
- Coastal wetland ecosystem dynamics
- Radiation Dose and Imaging
- Nematode management and characterization studies
- Plant nutrient uptake and metabolism
- Global Maternal and Child Health
- Plant and Fungal Species Descriptions
- Force Microscopy Techniques and Applications
- Polymer-Based Agricultural Enhancements
- Molecular spectroscopy and chirality
- HIV, Drug Use, Sexual Risk
- Climate Change Policy and Economics
Université du Sine Saloum El-Hâdj Ibrahima NIASS
2020-2025
Cheikh Anta Diop University
2012-2023
Bayero University Kano
2022
LMI Adaptation des Plantes et Microorganismes Associés aux Stress Environnementaux
2018
International School of Dakar
2018
The Abdus Salam International Centre for Theoretical Physics (ICTP)
2015-2016
Institut de Recherche pour le Développement
2014
Investigating the mechanical properties of cells could reveal a potential source label-free markers cancer progression, based on measurable viscoelastic parameters. The Young's modulus has proved to be most thoroughly studied so far, however, even for same cell type, elastic reported in different studies spans wide range values, mainly due application experimental conditions. This complicates reliable use elasticity phenotyping cells. Here we combine two complementary techniques, atomic...
We report on the modification of mechanical properties breast cancer cells when they get in contact with other neighboring same type. Optical tweezers vertical indentation was employed to investigate cell mechanics isolated and conditions, by setting up stiffness as a marker. Two human lines different aggressiveness [MCF-7 (luminal cancer) MDA-MB-231 (basal-like cancer)] one normal immortalized line HBL-100 (normal myoepithelial) were selected. found that significantly alter stiffness:...
L'arachide est cultivée par plus de 100 pays dans le monde. Les principaux producteurs sont la Chine et l'Inde qui fournissent 60 % production mondiale. L'Afrique assure 25 avec Nigéria, Sénégal Soudan principalement. Au Sénégal, les années 1960, culture l'arachide s'était développée comme rente (production d'huile tourteau) destinée à l'exportation une ouverture croissante sur marché mondial. Cette fut moteur du développement l'économie sénégalaise a assuré jusqu'à 80 des exportations...
Using twice-yearly campaigns such as Child Health Days to deliver vitamin A supplements has been a key strategy over the last 2 decades, and was an important component in helping reach Millennium Development Goals child health. As countries move strengthen their routine health services under Sustainable Goals, efforts are underway shift supplementation from campaign delivery.
The responses of the soil microbial community features associated to legume tree Acacia senegal (L.) Willd. including both arbuscular mycorrhizal fungal (AMF) diversity and bacterial functions, were investigated under contrasting environmental conditions. Soil samples collected during dry rainy seasons in two rainfall sites Senegal (Dahra Goudiry, arid semiarid zone, resp.). Soils taken from rhizosphere A. plantation natural stands comparison bulk soil. A multiple analysis revealed positive...
This study aims to use contaminated soil with leachate select autochthonous fungi that are able bioremediate three types of leachate, (Young (YL), Intermediate (IL) and Old (OL)). Eleven fungal species were isolated via the enrichment method using as sole source carbon energy. The isolates evaluated for their ability grow remove organic pollutants at 100%, 50% 25% (v/v) in both solid liquid cultures spiked malt extract. results indicated only fungi, <i>Aspergillus flavus</i>...
Radiological hazards from external exposure of naturally occurring radioactive materials (NORM) scales residues, generated during the extraction process oil and gas production in southern Algeria, are evaluated. The activity concentrations 226Ra, 232Th, 40K were measured using high-purity gamma-ray spectrometry (GeHP). Mean concentration 232Th 40K, found scale samples 4082 ± 41, 1060 38 568 36 Bq kg−1, respectively. hazard parameters, such as radium equivalent (Raeq), internal indices (Hex,...
Au Sénégal, nous constatons une augmentation des actes de délinquance violente et la consommation drogues illicites. L’étude se focalise sur deux groupes distincts : les consommateurs (CDs) en cure anciens délinquants violents (DVs). La méthodologie adoptée comprend étude quantitative auprès population générale (n=1009), suivie d’une enquête qualitative 15 participants, dont 8 CDs traitement au Centre Prise charge Intégrée Addictions Dakar (CEPIAD) Jacques Chirac Thiaroye, ainsi que 7 DVs du...
Distribution and diversity of rhizobial strains associated with Acacia senegal (L.) Willd. in relation to seed provenances soils from arid (Dahra) semiarid (Goudiry) zones Senegal were investigated. PCR-RFLP performed on 16S-23S rDNA intergenic spacer (IGS) nodule crude extracts revealed a high genetic strains, which was higher the region than region. The distribution populations influenced by soil physical chemical characteristics, A. as shown analysis correspondence. In contrast,...
We studied the lateral forces arising during vertical indentation of cell membrane by an optically trapped microbead, using back focal plane interferometry to determine force components in all directions. analyzed cell-microbead interaction and showed that indeed had also components. Using Hertz model, we calculated compared elastic moduli resulting from total forces, showing differences are important should be considered. To confirm our results cells two breast cancer lines: MDA-MB-231...
In this paper, the impact of Pontoscolex corethrurus on Acacia mangium growth and its phytoremediation efficiency in metal-contaminated soils were studied a greenhouse pot culture under four treatments: non contaminated soil-non inoculated, control (C); soil-inoculated (NcI); inoculated (CNi); (CI). The results showed that A. performance Pb, Ni Cr uptake significantly (P<0.05) increased CI treatment. Under CNi treatment, more content root tissue than shoot tissue. But for greater was...
The aim of this investigation was to isolate the most specific, effective and competitive strains for peanut, determine level variability in peanut cultivars response toward single/dual inoculation. Peanut seeds three namely 55–437, Fleur 11 69–101 were inoculated with two bradyrhizobial (LMG9283 USDA3187) an AM fungus Glomus intraradices, individually or combination, grown open–air conditions using a non–sterile sandy soil from Sangalkam. Plant controls supplied NPK chemical fertilizer at...
The objective of this study was to characterize the diversity arbuscular mycorrhizal fungal (AMF) communities colonizing roots Vigna unguiculata (L.) plants cultivated in two different sites Senegal. Roots cowpea and soil samples were collected from fields (Ngothie Diokoul) rural community Dya (Senegal). Microscopic observations stained indicated a high colonization rate Ngothie site as compared those Diokoul site. partial small subunit ribosomal DNA genes amplified genomic extracted these...
Objectif : Le fonio blanc ( Digitaria exilis Stapf), malgre ses nombreuses qualites nutritionnelles et therapeutiques, est considere comme une culture negligee ou mineure dans plusieurs pays ouest-africains. Bien que le fonio, toute cereale s’associerait a des champignons mycorhiziens arbuscules (CMA), aucune donnee n’a encore ete publiee sur son statut mycorhizien. L’objectif de cette etude etait de determiner la dependance mycorhizienne du l’inoculation avec a arbuscules (CMA). ...
In plant roots, arbuscular mycorrhizal fungi (AMF) are the most prevalent microsymbionts, and thereby provide many key ecosystem services to natural agricultural ecosystems. Despite AMF’s significance for environment economy, little is known about inoculum potential diversity of AMF associated with orphan African cereal crops, specially fonio millet (Digitaria exilis stapf.) under field conditions. We hypothesized that type agroecosystem influences density distribution in soils. therefore,...