A5011391084- Legume Nitrogen Fixing Symbiosis
- Mycorrhizal Fungi and Plant Interactions
- African Botany and Ecology Studies
- Agronomic Practices and Intercropping Systems
- Agriculture and Rural Development Research
- Plant nutrient uptake and metabolism
- Soil Carbon and Nitrogen Dynamics
- Plant Parasitism and Resistance
- Nematode management and characterization studies
- Ecology and Vegetation Dynamics Studies
- Plant-Microbe Interactions and Immunity
- Phytase and its Applications
- Peanut Plant Research Studies
- Forest Ecology and Biodiversity Studies
- Sesame and Sesamin Research
- Plant Pathogens and Fungal Diseases
- Fungal Biology and Applications
- Plant Stress Responses and Tolerance
- Agroforestry and silvopastoral systems
- Genomics and Phylogenetic Studies
- Coastal wetland ecosystem dynamics
- Soybean genetics and cultivation
- Plant and Fungal Species Descriptions
- Cassava research and cyanide
- Plant Growth Enhancement Techniques
Université du Sine Saloum El-Hâdj Ibrahima NIASS
2020-2025
Cheikh Anta Diop University
2014-2024
Isra University
2013-2023
LMI Adaptation des Plantes et Microorganismes Associés aux Stress Environnementaux
2015-2022
Institut de Recherche pour le Développement
2016-2018
Institut Sénégalais de Recherches Agricoles
2016-2018
Universidad Cristiana de las Asambleas de Dios
2001
ABSTRACT Here, we assessed the relative influence of wheat genotype, agricultural practices (conventional vs organic) and soil type on rhizosphere microbiome. We characterized prokaryotic (archaea bacteria) eukaryotic (fungi protists) communities in soils from four different countries (Cameroon, France, Italy, Senegal) determined if a core microbiome existed across these countries. The genotype had limited effect (2% variance) as majority microbial taxa were consistently associated to...
The aim of our work was to assess the growth and mineral nutrition salt stressed Acacia auriculiformis A. Cunn. ex Benth. mangium Willd. seedlings inoculated with a combination selected microsymbionts (bradyrhizobia mycorrhizal fungi). Plants were grown in greenhouse conditions non-sterile soil, irrigated saline nutrient solution (0, 50 100 mm NaCl). inoculation combinations consisted Bradyrhizobium strain Aust 13c for 11c auriculiformis, an arbuscular fungus (Glomus intraradices, DAOM...
Aims: We characterized phenotypically and genotypically root-nodulating bacteria associated with Acacia senegal (L.) Willd. isolated from the soils surrounding A. trees in dry land area of Senegal. Methods Results: The phenotypical genotypical characterizations we carried out showed a high diversity bacteria. Phenotypic patterns adaptations rhizobial strains to many environmental stresses such as heat, drought, salinity. Twelve molecular groups were distinguished by profiles obtained using...
Acacia senegal (L) Willd. and seyal Del. are highly nitrogen-fixing moderately salt tolerant species. In this study we focused on the genetic genomic diversity of mesorhizobia symbionts from diverse origins in Senegal investigated possible correlations between strains, their soil origin, tolerance to salinity. We first performed a multi-locus sequence analysis five markers gene fragments collection 47 strains A. 8 localities. Most (60%) clustered with M. plurifarium type strain ORS 1032T,...
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...
Land salinization is a major constraint for the practice of agriculture in world. Considering extent this phenomenon, rehabilitation ecosystems degraded by has become priority to guarantee food security semi-arid environments. The mechanical and chemical approaches rehabilitating salt-affected soils being expensive, an alternative approach develop utilize biological systems utilizing salt-tolerant plant species. Casuarina species are naturally halotolerant, but tolerance been shown be...
Cultivated diversity is considered an insurance against major climatic variability. However, since the 1980s, several studies have shown that climate variability and agricultural changes may already locally eroded crop genetic diversity. We studied pearl millet in Senegal through a comparison of landraces collected 40 years apart. found more than 20% villages visited 1976 had stopped growing millet. Despite this, its overall has been maintained but differentiation between early-...
Changing environmental conditions in dryland areas exacerbate land degradation and food insecurity many sub-Saharan African nations. Multi-purpose tree species such as Senegalia senegal (L.) Britton, are favored for reforestation reclamation compared to single-use species. A great deal of research has also focused on this due its ability fix atmospheric nitrogen into ammonia, which is returned over time the soil via recycling N-rich plant tissue. We review recent literature how S....
Rhizobial inoculation has been widely used in controlled conditions as a substitute for chemical fertilizers to increase plants growth and productivity. However, very little is known about such effects on mature trees natural habitats. In this study, we investigated the effect of rhizobial soil total microbial biomass, mineral nitrogen content, potential CO2 respiration, fluorescein diacetate (FDA), acid phosphatase activities, gum arabic production by 13-year-old Senegalia senegal (synonym:...
This study presents an analysis of the impact mycorrhizal inoculation on growth under salt stress date palms cultivars Nakhla hamra (NHH) and Tijib known in Sahel for their earliness flowering fruiting. The seedlings were grown a greenhouse sandy substrate watered to field capacity every two days subjected increasing levels NaCl (0, 1, 2, 4, 6, 8 16 g·L-1) then inoculated with 5 strains Glomus (G. aggregatum, G. intraradices, verriculosum, mosseae, fasciculatum). experimental design was...
The assessment of genetic diversity is a key prerequisite for studying the adaptation populations to new environmental conditions, and therefore selection varieties. present investigation aimed estimate levels structure within bread wheat varieties grown in Cameroon. Thus, was assessed 17 hexaploid cultivars, using 11 microsatellite markers. Genetic resources were collected Northwest, Adamawa North Regions. All pairs specific marker loci used gave amplifications with allelic variations size...
Seedlings of S. robustus were exposed to increasing NaCl concentrations (0, 50, 100, 150, 200, 250, and 300 mM) for 150 days, in greenhouse conditions. Total dry weight salt tolerance index decreased gradually with concentrations. The optimum growth (4.12 5.25 g · plant−1) was obtained between 0 mM at days after stress. Foliar chlorophyll a total contents increased concentration 50 treatment. There no significant effect salinity on a, b 100 Higher Na found the shoots as compared roots....
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,...