Mohamed Refaat

ORCID: 0000-0002-1555-3754
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Plant Pathogenic Bacteria Studies
  • Plant Disease Resistance and Genetics
  • Identification and Quantification in Food
  • Agronomic Practices and Intercropping Systems
  • Plant-Microbe Interactions and Immunity
  • Aquaculture disease management and microbiota
  • Insect-Plant Interactions and Control
  • Algal biology and biofuel production
  • Rabbits: Nutrition, Reproduction, Health
  • Aquaculture Nutrition and Growth
  • Plant pathogens and resistance mechanisms
  • Pineapple and bromelain studies
  • Listeria monocytogenes in Food Safety
  • Research on scale insects
  • Livestock and Poultry Management
  • Breast Implant and Reconstruction
  • Plant chemical constituents analysis
  • Crop Yield and Soil Fertility
  • Salmonella and Campylobacter epidemiology
  • Agricultural Practices and Plant Genetics
  • Soybean genetics and cultivation
  • Vector-Borne Animal Diseases
  • Microbial infections and disease research
  • Studies on Chitinases and Chitosanases
  • Plant tissue culture and regeneration

Benha University
2009-2023

Assiut University
2012

Blue rot disease caused by Penicillium expansum is one of the most widespread fungal diseases that affects apples worldwide. This work was to verify effect chitosan (2 and 4 g/L) its nano-form (0.2 0.4 against blue on their expression six defense-related genes as well fruit quality parameters. Regarding incidence, in cases, NPs performed better compared raw materials for both artificial natural infections. The highest efficacy obtained at g/L infection 2019 2020 seasons. All treatments kept...

10.3390/horticulturae7080224 article EN cc-by Horticulturae 2021-08-05

Two essential oils, namely Ocimum basilicum L. and Lavandula officinalis Chaix, were tested for their repellency, toxicity oviposition deterrence against two tetranychid mites, tetranychus urticae (Koch) Eutetranychus orientalis (Klein).Fifty-seven forty-seven compounds, comprising about 96.7 95.4% of sweet basil French lavender oil, respectively, positively identified using GC-MS technique.Oil analysis revealed the dominant occurrence oxygenated terpenes in either oils (91.172 64.317%),...

10.1556/aphyt.37.2002.1-3.28 article EN Acta Phytopathologica et Entomologica Hungarica 2002-06-01

Forty-two bacterial isolates were collected from soft-rotted potato tubers originating four governorates in Egypt. Their phenotypic and genetic characteristics studied. The identification resulted grouping the studied into five different species and/or genera including Pectobacterium sp., Bacillus Dickeya Pseudomonas sp. (1), (2). molecular of 10 them pathogenic to other hosts. More specific later isolates, using two primers for P. carotovorum subsp. (Pcc) reference strain PccY46 (Acc. No....

10.1186/s41938-019-0104-1 article EN cc-by Egyptian Journal of Biological Pest Control 2019-01-29

<p>The limited rabbit resources in Egypt are threatened by the danger of extinction, whereas genetic diversity studies native breeds could play a vital role conservation and improvement these breeds. In this study, 3 breeds: Gabali (G), Baladi Red (BR) Black (BB), addition to New Zealand White (NZW), were genotyped using 12 microsatellite markers. All typed microsatellites polymorphic average number alleles 5.25 per locus. Observed expected heterozygosity locus averaged 0.62 0.68,...

10.4995/wrs.2019.8923 article EN World Rabbit Science 2019-09-30

Chlorella vulgaris species was isolated from Nile River in Qalubia Governorates, Egypt.The highest constant of growth (μ=1.5),and the lower time reproducing a generation (G=0.2).The green alga identified using 18S rRNA gene amplification followed by sequencing resultant sequence compared with those available on NCBI website database through BLAST bioinformatics tool.The percentage lipids synthesized 20 %.In order to increase lipid contents this made chemical mutation EMS.Using three...

10.21608/assjm.2018.49792 article EN Annals of Agricultural Science Moshtohor 2018-09-01

Our goal for this study to characterize three species germplasm of family Apiaceae, namely (Cumin, Caraway and Coriander), make a chromosome characterization molecular fingerprint the mentioned species. Results performed on Karyomorphological showed that; Cuminum cyminum L. (cumin: 2n=14), Carum carvi (Caraway: 2n=20) Coriandrum sativum (coriander: 2n=22). The total chromatin Relative Length percentage (RL%) noted be Cumin ±10.69µm ± 19.70µm, ±7.30µm 13.40µm Coriander ±5.58µm 12.07µm....

10.2139/ssrn.3388044 article EN SSRN Electronic Journal 2019-01-01

The causal organism of brown rot disease Ralstonia solanacearum is a common and dangerous pathogen affecting several economically important crop species.R. has wide range occurrence severity in potatoes other nightshades such as eggplant, tomatoes green peppers.The main goal this study to detect the genetic variation between 14 isolates R. from diverse geographic ecoregions Egypt using Start Codon Targeted Technique (SCoT).Ten SCoT primers were used amplify markers, taking into account...

10.21608/jacb.2022.165063.1035 article EN Journal of Agricultural Chemistry and Biotechnology 2022-11-01

In Nile tilapia, Oreochromis niloticus, dietary dry Golenkinia longispicula supplementation (0.0, 5, 10 and 15 g kg-1 diets) was utilized to improve growth, feed efficiency, hematologically related gene expression. For a period of ninety days, fingerlings weighing 3.29 ± 0.16 at hatching were randomized placed in triplicate into twelve fiberglass tanks measuring 0.5 m3 holding 250 L water each for treatment. After 90 days the feeding trial, results demonstrated final body weight (FBW), gain...

10.21608/assjm.2024.252055.1258 article EN Deleted Journal 2023-09-01

Milk is a valuable nutritious food that has short shelf life and requires careful handling. Therefore, milk rapidly perishable as it suitable medium for the growth of microorganisms particularly; bacterial pathogens can cause spoilage diseases in consumers. This study aimed to determine prevalence Salmonella sp. raw heat-treated milk, characterize its virulence-associated genes, assess antimicrobial profile. One hundred thirty samples (50 cow's 50 buffalo's 10 Heat-treated (pasteurized), 20...

10.21608/assjm.2024.253296.1259 article EN Deleted Journal 2023-09-01

Anatomic variations of the portal vein (PV) and bile duct (BD) are more common on right lobe as compared with left grafts in living donor liver transplantation (LDLT). We recently experienced a case LDLT for hepatocellular carcinoma combined cirrhosis secondary to hepatitis B virus C infection. The only available had graft type IV PV (right anterior branching from umbilical portion PV) associated BD posterior drains into at its portion). Three-dimensional reconstruction computed tomography...

10.1097/00007890-201211271-01245 article EN Transplantation 2012-11-01

Reciprocal molecular markers were developed to distinguish the closely related parasitoid genera Encyrtus Latreille, Metaphycus Mercet and Paraceraptrocerus Girault (Hymenoptera : Encyrtidae).These parasitoids are widely used in biological control of soft scales based upon morphology, it is extremely difficult them.DNA extraction RAPD-PCR assess amount genetic variation within among species at this locus.From parsimony analysis, populations inflelix (Embleton), anneckei Guerrieri & Noyes...

10.21608/jppp.2009.217512 article EN Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology 2009-12-01

Benha line chickens (Line B) were originated by crossing the Egyptian native Golden Montazah cocks with White Leghorn hens.The main aim of this study was to estimate genetic characterization Line Chickens compared and as parents.In study, genomic DNA B line, extracted carry out Polymerase Chain Reaction (PCR) using five specific microsatellite markers (MCW0330, MCW0183, MCW0081, MCW0014 ADL0278).These are for egg number, shell strength, clutch size, breast muscle weight (BMWT), body weight,...

10.21608/bvmj.2018.47885 article EN Benha Veterinary Medical Journal 2018-08-01

Thirty-Four isolates of Erwinia carotovora subspecies (Ecc) causing soft rot potato, were collected from tubers potato plants grown in North and East Egypt.The frequency the isolated species rot-associated bacteria, being 10, 8 6 Governorates Sinai, Sharqia, Gharbia Beheira, respectively.The identified as Ecc by biochemical method molecular identity then was confirmed polymerase chain reaction (PCR) using specific primers FEc1 REc1 which amplified Eca-specific band 690-733 bp.Pathogenicity...

10.21608/zjar.2018.47891 article EN cc-by Zagazig Journal of Agricultural Research 2018-12-30

Among the different biological sources, common bean, tepary Bean, and wild type (Phaseolus spp.) have many biotechnological applications.The DNA barcode of use rbcL gene has proven its usefulness in study Phaseolus spp.Phylogenetic diversity genotypes, more than a cryptic introduction, environmental modulation, geographic distribution, species identification exclusive bean species.Eleven samples had been obtained from unique locations Egypt.The rbcl successful PCR reaction.Seven complete...

10.21608/assjm.2022.227261 article EN Annals of Agricultural Science Moshtohor 2022-03-01
Coming Soon ...