- Legume Nitrogen Fixing Symbiosis
- Biofuel production and bioconversion
- Anaerobic Digestion and Biogas Production
- Plant-Microbe Interactions and Immunity
- Agronomic Practices and Intercropping Systems
- Nematode management and characterization studies
- Microbial Metabolic Engineering and Bioproduction
- Plant nutrient uptake and metabolism
- Soybean genetics and cultivation
- Enzyme Catalysis and Immobilization
- Mycorrhizal Fungi and Plant Interactions
- Phosphorus and nutrient management
- Plant Micronutrient Interactions and Effects
- Algal biology and biofuel production
- Plant Pathogenic Bacteria Studies
- Wastewater Treatment and Nitrogen Removal
- Enzyme Production and Characterization
- Plant Parasitism and Resistance
- Methane Hydrates and Related Phenomena
- Plant Pathogens and Fungal Diseases
- Biocrusts and Microbial Ecology
- Phytase and its Applications
- Microbial Fuel Cells and Bioremediation
- Microbial Metabolites in Food Biotechnology
- Plant Stress Responses and Tolerance
Assiut University
2016-2025
Justus-Liebig-Universität Gießen
1998-2001
This review article explores the impact of nitrogen fertilizers on symbiotic relationship between Rhizobium bacteria and legume plants. Nitrogen fixation has potential to address global protein shortage by increasing supply in agriculture. However, excessive use synthetic led environmental consequences high energy consumption. To promote sustainable agriculture, alternative approaches such as biofertilizers that utilize biological have been introduced minimize ecological impact....
Rhizobium leguminosarum biovar viceae strain TAL 1236 growing on different organic phosphorus compounds as sources of phosphate exhibited phosphatase activities. The was able to produce both acid and alkaline phosphatases. However, its ability much higher. When cellular fell 0.115% cell protein, extracellular activities were promoted. Mg2+, Co2+ Ca2+ enhanced slightly the activity more than phosphatase. Mn2+ Fe2+ activated rather It may be concluded that Rh. plays an important role in...
Studying of nanoparticle structures is gaining momentum because their great potential in improving several fields science such as agriculture.The water soluble fraction the extracellular polysaccharides (EPS)/matrix highly EPS producing cyanobacterium Nostoc commune have been used a potent reducing and capping agent for green synthesis silver nanoparticles.The size these nanoparticles with coat was found to be range 15-54 nm analyzed using transmission electron micrographs.Interestingly,...
Abstract Plant diseases significantly threaten global food security, with viral infections, particularly Watermelon Mosaic Virus (WMV), causing substantial losses in economically important crops such as squash. This study aims to investigate the efficacy of beneficial bacteria isolated from various plants promoting growth and mitigating effects WMV Understanding interactions between microbes could provide sustainable solutions for managing infections agriculture. Sixty-two bacterial isolates...
Soil salinity is a major limitation to legume production. We evaluated specific soybean [ Glycine max (L.) Merr.] genotypes identify salt‐tolerant soybean‐ Bradyrhizobium system, and determine by grafting experiments if the scion or root was responsible for salt tolerance. The effects of three levels (0, 30, 60 m M NaCl) on nitrogenase activity (acetylene reduction), nodule number, dry matter, growth four (Williams 82, PI 416937, DR‐1 [an Egyptian cultivar], NOD1‐3 [a hypernodulating mutant...
Identification of common signals nodulation control among legume species will facilitate progress in enhancing symbiotic nitrogen fixation legumes sustainable agriculture system. Grafting experiments between soybean and bean were carried out to evaluate whether a shoot the expression hypernodulation tow species. hypernodulating mutant NOD1-3 shoots three cultivars normally nodulating roots resulted on tested bean. The may be causally related differential root isoflavonoid levels, which are...