Hayam S. Abdelkader

ORCID: 0000-0003-0121-7829
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About
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Research Areas
  • Plant Virus Research Studies
  • Plant and Fungal Interactions Research
  • Essential Oils and Antimicrobial Activity
  • Nanoparticles: synthesis and applications
  • Transgenic Plants and Applications
  • Plant Pathogenic Bacteria Studies
  • Plant Growth Enhancement Techniques
  • Microbial Community Ecology and Physiology
  • Psidium guajava Extracts and Applications
  • Ethnobotanical and Medicinal Plants Studies
  • Plant Pathogens and Fungal Diseases
  • Plant Parasitism and Resistance
  • Berberine and alkaloids research
  • Plant tissue culture and regeneration
  • Alkaloids: synthesis and pharmacology
  • Plant-Microbe Interactions and Immunity
  • Genomics and Phylogenetic Studies
  • Date Palm Research Studies
  • Identification and Quantification in Food
  • Plant Pathogens and Resistance
  • Flowering Plant Growth and Cultivation
  • Cocoa and Sweet Potato Agronomy
  • Environmental DNA in Biodiversity Studies
  • Plant and animal studies
  • Nutrition, Health and Food Behavior

Agricultural Genetic Engineering Research Institute
2023-2024

Agricultural Research Center
2023

University of Jeddah
2019-2022

JW Pharmaceutical (South Korea)
2021

Mansoura University
2020

Novem (Netherlands)
2015

Taif University
2011-2014

A survey of fresh-market vegetables and fruits including orange (Citrus sinensis) lemon lemon), tomatoes (Lycopersicon esculentum), grapes (Vitis vinifera), strawberries (Fragaria ananassa), cucurbita (Cucurbita pepo), cucumbers (Cucumis sativus), eggplants (Solanum melongena), Bell pepper (Capsicum annuum), soft dates (Phoenix dactylifera Linn.) were conducted in Jeddah city to control the most common fungal infections by using biosynthesized Silver nanoparticles as antifungal agent. The...

10.26502/jnr.2688-8521002 article EN Journal of Nanotechnology Research 2019-01-01

Multidrug - resistant (MDR) bacteria are considered life-threatening and need fast identification antibiotic sensitivity testing to overcome this problem. In the current article, we highlighting potential of developing silver Nanoparticles (AgNPs) using Cinnamomum zylinicum bark extracts as a promising approach. UV, SEM, TEM FT-IR analysis were carried out characterize biosynthesized AgNPs. UV-visible spectroscopy showed presence characterized peek at (420 nm), spherical shaped monodispersed...

10.26502/jnr.2688-8521008 article EN Journal of Nanotechnology Research 2019-01-01

Aim:The study is aimed to detect the presence of cagA, iceA1, and iceA2 virulence genes in H. pylori from gastric biopsies, deduce correlation between these genotypes two clinical outcomes peptic ulcer disease (PUD), gastritis.Materials methods: Thirty three Saudi patients 15 males 18 females, 20 90 years were assigned into groups PUD gastritis.Genomic DNAs extracted biopsy specimens used iceA by PCR typing system.Fisher's Phi coefficient association tests for statistical analysis.Results:...

10.7243/2052-6180-2-2 article EN Microbiology Discovery 2014-01-01

Abstract The latest coronavirus pandemic (SARS-CoV-2) poses an exceptional threat to human health and society worldwide. spike (S) protein, which is required for viral–host cell penetration, might be considered a promising suitable target treatment. In this study, we utilized the nonalkaloid fraction of medicinal plant Rhazya stricta computationally investigate its antiviral activity against SARS-CoV-2. Molecular docking molecular dynamics simulations were main tools used examine binding...

10.1038/s41598-022-15288-2 article EN cc-by Scientific Reports 2022-07-01

Hot springs are known to be rich in diverse microorganisms, including thermophilic bacteria capable of producing industrially important enzymes. This study aimed isolate, purify, and identify from three hot located the southern region Saudi Arabia, namely Al-Ma'a Al-Har, Al-Aredhah, Al-Ahsarai spring. The isolated bacterial isolates were screened for amylase enzyme production, most potent Cytobacillus firmus OQ834432 isolate OHA8, was selected large-scale production enzyme. then purified...

10.21608/ejm.2024.240822.1236 article EN Egyptian Journal of Microbiology 2024-01-10

Abstract Garlic is a highly valued cash crop worldwide, but its economic value can be diminished by Leek yellow stripe virus (LYSV), which causes symptoms in infected plants and reduces yields. The presence of LYSV was confirmed host range, DAS-ELISA, RT‒PCR, DNA sequencing. This study aimed to evaluate the antiviral potential biogenic silver nanoparticles ( Cz -AgNPs) chemically synthesized metal nanosilica (nSiO 2 ) against LYSV-Eg (OR343513.1) isolates. morphological structure evaluated...

10.1007/s10658-024-02965-3 article EN cc-by European Journal of Plant Pathology 2024-11-08

The coast of the Red Sea in Jeddah City is home to a unique microbial community that has adapted extreme environmental conditions. Therefore, it essential characterize this microbiome predict how changes will affect it. aim study was conduct metagenomic sequencing 16S rRNA and ITS genes for taxonomic classification soil samples associated with halophytic plants Tamarix aphylla Halopeplis perfoliata. Fifteen were collected triplicate enhance robustness minimize sampling bias. Firstly,...

10.3390/plants12112176 article EN cc-by Plants 2023-05-30

The present research was conducted in the greenhouse of Experimental Station Horticultural Research Mansoura, Institute, Agricultural Center during two successive seasons 2016 and 2017 from February 21 to June 27. One month oldgerbera plants were obtained a commercial nursery planted 20 cm pots. This investigation aimed improve some plant growth, flowering parameters chemical constituents gerbera (Gerbera jamensonii L.) plants, by using foliar application with amino acids (glycine, arginine,...

10.21608/jpp.2020.79110 article EN Journal of Plant Production 2020-02-01

The Kingdom of Saudi Arabia is considered one the major dates producing zones in world, contributing 13% total world production.Most are delivered to local markets without any treatment thus, may be leading microbial contamination which increase incidence growth.Some pathogenic fungi associated with soft (Phoenix dactylifera Linn.) collected from Almadinah Almunawarah, markets, was isolated and molecularly identified during summer 2019.Contaminated date samples (Sukkary, Ajwa, Shalabi...

10.30918/ampr.74.19.038 article EN cc-by Advancement in Medicinal Plant Research 2019-11-01

Aims: Strawberry (Fragaria ananassa Duch.) is a member of the family Rosaceae and one most important vegetable crops in Egypt for local fresh consumption exportation.Suspected symptoms mild yellow edge virus (SMYEV) on naturally infected strawberry plants were observed Al Qaluobia Governorate.The main goal this study was to develop novel eco-friendly biogenic silver nanoparticle using clove (Syzygium aromaticum) (Sz-AgNPs) aqueous extract control viral infection.Methodology results:...

10.21161/mjm.220063 article EN cc-by-nc Malaysian Journal of Microbiology 2023-04-26

T HIS STUDY aimed to establish functional SSR markers corresponding variations in starch accumulation potato somaclones.In addition the original cultivar Lady Rosetta, fourteen callus-sourced somaclones were investigated for their and sugar contents as well dry matter content.Of selected somaclones, one represented clones with same content of another those lower content.The remaining have higher content, compared cultivar.The combined results two growing seasons unveiled significant positive...

10.21608/ejbo.2023.212700.2341 article EN Egyptian Journal of Botany 2023-08-23

(2011). Genetic variance between some Egyptian Date Palm cultivars using PCR-based markers with emphasis on the prevalence of Al wijam disease. Archives Phytopathology and Plant Protection: Vol. 44, No. 8, pp. 732-742.

10.1080/03235400802246929 article EN Archives of Phytopathology and Plant Protection 2011-05-01

The present research was accomplished during the two consecutive seasons of 2017-2018 and 2018-2019 at Baramoon Experimental Research field, Dakahlia Governorate, Hort.Res.Institute, Agric.Res.Center, Ministry Agric., Egypt.Therefore, an experiment undertaken to examine best treatment some amino acids (Tryptophan, Arginine, Glycine combination between them) as foliar usage concentration 100 ppm, beside control on enhancing vegetative characteristics, flowering chemical constituents dahlia...

10.21608/jpp.2020.95627 article EN Journal of Plant Production 2020-04-01

Streptococcus mutans strains were found to have a substantial role in the development of caries. The objective this study is evaluate potential antibacterial activity some edible plant extracts against isolates. Fifty oral dental plaque specimens obtained from various clinics Jeddah city 23 males and 27 females with median ages ranging between 19.9 51.25 years. All isolates subjected microbiological, biochemical, molecular identification. results showed that 36.3% bacterial identified as...

10.9734/jpri/2021/v33i34b31859 article EN Journal of Pharmaceutical Research International 2021-07-02

Twenty three isolates of Salmonella enterica representing two serovars, Typhimurium and Enteritidis isolated from hospitals in Taif province, Kingdom Saudi Arabia, were allocated to 23 genomic types using random amplified polymorphic DNA RAPD-PCR employing four 10-mer arbitrary primers. Jaccard's similarity coefficients used reveal the genetic diversity among isolates. Random DNA-polymerase chain reactioin (RAPD-PCR) a total 55 distinct bands (54 or 98%). Cluster analysis based on...

10.5897/ajmr2014.7292 article EN African Journal of Microbiology Research 2015-03-04

The need for clean water is becoming urgent all over the world. risk of microbial contamination drinking and its growing ability under poor nutritional conditions occur frequently existing management systems do not efficiently eliminate these micropollutants. major goal this research to analyze test quality at random locations in Jeddah City investigate integration polyurethane foam coated nano-silica silver nanoparticles (NSAgNPs) into purification system. study was conducted city intervals...

10.9734/jpri/2021/v33i26a31468 article EN Journal of Pharmaceutical Research International 2021-04-26

Diverse marine habitats along Jeddah's Red Sea coast support rich biodiversity. Few studies have been done on its diverse communities, especially microbial counterparts. Metagenomic analysis of benthic micro-eukaryotic communities was performed for the first time Jeddah. This research looks into their community structure and metabolic potential. Next-generation sequencing used to examine seven sedimentary soil samples from four Jeddah locations. After isolating DNA samples, 18S rDNA V4...

10.1016/j.sjbs.2022.103342 article EN cc-by-nc-nd Saudi Journal of Biological Sciences 2022-06-26
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