Articles
308 open-access articles · page 12 of 16
ArticlesDifferent culturing systems of IBV-Eg-F170-2015 strain of Egypt variant 2 infectious bronchitis virus
Ahmed A. Azab, Wesam H. Mady, Ali Zanaty, Mahmoud Samir
Background: Infectious bronchitis virus (IBV) is an acute contagious disease cause severe economic losses in poultry production worldwide. Virus isolation is the golden standard for IBV diagnosis so the aim of this study was comparing the different biological…
18 Aug 2021- Articles
ISOLATION AND IDENTIFICATION OF LUMPY SKIN DISEASE VIRUS IN CATTLE IN KALUBEYA GOVERNORATE
Lamya A. F. Ateya, Said A. Ahmed, Mansour H. Ayman, Khamees K. Ashraf, Heba A. Abdel-Hady
Background: Lumpy skin disease virus (LSDV) is an infectious viral disease which is an important serious skin disease of cattle. LSDV was isolated from skin biopsies collected from cattle which are clinically infected at Kaluobia governorate. Objectives: This…
18 Aug 2021 - Articles
Interfering of maternal derived antibodies with the protection of local inactivated reassortant H5N1 Avian influenza vaccines with antigenic content of 300 HA units in commercial broiler chickens
Maha M. Khedr, Reem A. Suliman, Marwa F. Mohamed, Mounir D. El Safty, Hussein A. Hussein
Background: Influenza virus is an Orthomyxovirus that known as one of the causes of significant numbers of natural infections and disease, mainly infecting the upper respiratory tract, in humans, domestic pigs, horses, and numerous bird species. Maternal deriv…
18 Aug 2021 - Articles
Detection of mixed infection of Prunus necrotic ringspot virus and phytoplasma in peach trees in Egypt
Salama M. El-Saghir
Background: Prunus necrotic ringspot virus (PNRSV), family Bromoviridae, genus Ilarvirus is known to infect stone fruit trees and causes extensive economic losses in Egypt. Distinctive symptoms with PNRSV are necrotic ring spots on leaves, bud failure and poor…
18 Aug 2021 - Articles
Identification, characterization and ultrastructure aspects of Alfalfa mosaic virus infecting potato (Solanum tuberosum L.) in Egypt
Maha A. El-Abhar, Moustafa A. Elkady, Khaled M. Ghanem, Hussieny A. Bosila
Background: Alfalfa mosaic virus (AMV) is only virus in the genus Alfamovirus and has very wide host range among weed and crop plants which produces a variety of symptoms. It can cause problems in potato in some regions where vectors easily move into potato fi…
18 Aug 2021 - Articles
Effect of methanolic-extracted green tea on hepatitis A virus and its usage in clearing the virus from drinking Water
Dina N. Abd-Elshafy
Background: Hepatitis A virus (HAV) causes tens of millions of human infection annually worldwide. It usually spreads by the fecal-oral route and is transmitted from person-to-person through contaminated food or water. A number of travelers arriving from Egypt…
18 Aug 2021 - Articles
Some molecular assays used for identity of Peste des Petits Ruminants (PPR) vaccines
Manar F. Seioudy, Magda M. Sayed, Ahmed A. El-Sanousi, Mohammed A. Shalaby
Background: Evaluation of Peste des petits ruminants (PPR) vaccine is a matter of concern to ensure releasing of safe, effective and potent product. Objective: To use of some molecular techniques as conventional reverse transcriptase polymerase chain reaction…
18 Aug 2021 - Articles
Molecular detection and phylogenetic analysis of sheep pox virus in El Menofiya Governorate
Ashraf S. Khameis, lamya F. Atteya, Ayman H. Mansour, Heba A. Abdelhady, Ashraf A. Saad
Background: Sheep pox virus is a member of the Capripoxvirus genus of the Poxviridae family, which affect sheep and causes significant economic losses in El Menofiya Governorate. Objectives: The present study was applied for isolation and molecular identificat…
18 Aug 2021 - Articles
Molecular characterization of foot and mouth disease virus (O-EA3) isolated during 2016 outbreak in Egypt
Muhammad G. Khodary, Ayman H. El-Deeb, Mohamed M. Emara, Othman E. Othman, Hussein A. Hussein
Background: In January 2016, several cases of clinical signs and mortalities suggested foot and mouth disease (FMD) outbreaks among cattle and buffalo herds in Egypt. This study aimed to investigate the contribution of Foot and Mouth Disease Virus (FMDV) and c…
18 Aug 2021 - Articles
Biological, serological and inhibition activity of Tomato spotted wilt virus isolated from tomato plants in Taif region, Saudi Arabia
Manal A. El-Shazly1. M. I .Kobeasy2and Sarah H . Altalhi
Tomato spotted wilt virus (TSWV) has been isolated from naturally infected tomato plants collected from Taif governorate, Saudia Arabia for the first time. Observed symptoms circumvented mosaic, curling, bronzing and/or purpling, chlorosis and necrotic spot on…
16 Aug 2021 - Articles
Characterization and molecular studies of Bean common mosaic virus isolated from bean plants in Egypt
M. A. S. El-kady, A. B. Badr, Ahmed K. El-Attar, Hoda M. A. Waziri, Kh. E. A. Saker
1Virus and Phytoplasma Research Department, Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt. 2Department of Botany, Al-Azhar University, Cairo, Egypt.
16 Aug 2021 - Articles
The Detection and Diversity of Banana Streak Virus Isolates in Egypt
Aly M. Abdel-Salam, Rehab A. Dawoud, Amira M.E.Aly, Salama M. El-Saghir
Banana plants from Williams' (AAA, Cavendish subgroup) banana (Musa acuminate) variety and from Pradica (AAB group) banana (Musa × paradisiaca) variety, collected from different locations in Egypt, were tested for the presence of Banana streak virus (BSV…
16 Aug 2021 - Articles
Anatomical and cytological changes in bean leaf cells infected with Bean common mosaic virus
A. B. Badr, M. A. S. El-kady, Kh. E. A. Saker
Bean common mosaic virus (BCMV) infection has bean shown to influence the anatomical and cytological characters of infected bean plants. The thickness of leaflet blades, palisade and spongy tissues were increased than the healthy plants. In contrast the thickn…
16 Aug 2021 - Articles
The occurrence of Sugarcane bacilliform virus on sugarcane in Egypt
Aly M. Abdel-Salam
Sugarcane bacilliform virus (SCBV), Badnavirus, Caulimoviridae was detected in the noble sugarcane (Saccharum officinarum) plants in Giza and Assiut governorates showing leaf symptoms of pronounced flecks or freckles and vein banding which turn later to chloro…
16 Aug 2021 - Articles
One economical extraction method to detect all graft transmissible pathogens of citrus
Elharony, S.B, SaharA.Youssef, Richard F. Lee
A simple and applicable extraction method for the isolation of high quality nucleic acid (DNA and RNA) to detect all graft transmissible pathogens of citrus including prokaryotic pathogens, DNA and RNA viruses and viroid provides a new approach to virus and vi…
16 Aug 2021 - Articles
ISOLATION OF AN ENTOMOPATHOGENIC VIRUS IN THE GREEN STINK BUG NEZARA VIRIDULA (LINNAEUS) IN EGYPT
AdlyAbd-Alla, MahaNada, Francois Cousserans, Max Bergoin
The green stink bug Nezaraviridula is an important economic pest in Egypt and in many countries around the world and requires control management measures. During the establishment of a N. viridulacolony in Egypt, a significant reduction in the insect productiv…
16 Aug 2021 - Articles
Partial characterization of Necrotic ringspot virus on apple in EGYPT
Aly M. Abdel-Salam, Samah A. Mokbel
A severe isolate of Necrotic ringspot virus (NRSV) was isolated from apple orchards in the vicinity of Nubaria city, Beheira governorate, Egypt. Infected-apple trees showed chlorotic, necrotic ringspots, and shoot holes on leaves. Severely infectedtrees wither…
16 Aug 2021 - Articles
Characterizations of the Egyptian isolate of Onion yellow dwarf virus Infecting onion and development of Virus-Free plantlets
Ahmed K. El-Attar, Samah A. Mokbel, Ali H. Hamed
Onion yellow dwarf disease is an economically important disease of onion (Allium cepa L.) caused by Onion yellow dwarf virus (OYDV). In this research we aimed to identify and molecularly characterize the isolate of the OYDV infecting onion plants in Egypt and…
16 Aug 2021 - Articles
Effect of Gamma Irradiation on Production of Phytoplasma-Free Hibiscus Plantlets
Samah A. Mokbel, Ahmed K. El-Attar
Controlling phytoplasma-causing disease through combination of tissue culture technique and radiation treatment represented a short method for high level management. To investigate the effect of gamma rays to produce healthy plantlets, the hibiscus witches' br…
16 Aug 2021 - Articles
Molecular and Biological Characterization of Squash Leaf Curl Virus (SLCV) Affecting Common Beans in Egypt
Amro A. Farrag, Ahmed K. El-Attar, Om-Hashem M. El-Banna, Ibrahim A. I, H. M. Mazyad
Symptomatic leaf samples obtained from common bean plants were collected from Qaliobeya governorate, Egypt, and tested for Squash Leaf Curl Virus (SLCV) infection by PCR using both degenerate and specific oligonucleotide primers. SLCV (bean isolate) was transm…
16 Aug 2021