Results 11 to 20 of about 40,321 (176)

Identification of Genes Involved in Resistance to Flavescence Dorée Disease of Grapevine: A Model Study Using Arabidopsis thaliana. [PDF]

open access: yesMol Plant Pathol
Arabidopsis thaliana genes conferring resistance to flavescence dorée (FD) phytoplasma were identified, revealing vector‐independent defence mechanisms and providing potential targets for breeding FD‐resistant grapevine. ABSTRACT Flavescence dorée (FD), caused by FD phytoplasma (FDp) and transmitted by the leafhopper Scaphoideus titanus, is a ...
Rossi M   +5 more
europepmc   +2 more sources

EVALUATION OF SANITARY STATUS OF GRAPEVINES IN EGYPT [PDF]

open access: yesJournal of Plant Production, 2007
Incidence and distribution of viruses and virus diseases on grapevines (Vitis vinifera.) in different locations in Egypt were determined during March and April 2005 and 2006. Surveys for viruses were carried out at Grapevine areas in which international (
M. Amer   +3 more
doaj   +1 more source

Physiological and Biochemical Changes in Lucerne () Plants Infected with ‘ Phytoplasma australasia’-Related Strain (16SrII-D Subgroup) [PDF]

open access: yesThe Plant Pathology Journal, 2022
Changes in physiological and biochemical patterns in lucerne plants caused by the presence of ‘Candidatus Phytoplasma australasia’, which is one of the significant pathogens causing yield losses in lucerne plants, were investigated.
Hümeyra Ayvacı   +2 more
doaj   +1 more source

NATURAL INFECTION PEANUT WITH Peanut mottle virus (PEMV) IN EGYPT. [PDF]

open access: yesJournal of Plant Production, 2007
A virus causing mottling, yellowing, necrosis, malformation and stunting on Arachis hypogaea L. plants was identified as Peanut mottle virus (PeMV) on the basis of host range, symptomatology, serology and RT-PCR.
Hayam Abdelkader   +2 more
doaj   +1 more source

The Diversity, Distribution and Status of Phytoplasma Diseases in China

open access: yesFrontiers in Sustainable Food Systems, 2022
Phytoplasmas are important prokaryotic pathogenic bacteria without cell walls, which were formerly known as mycoplasma-like organisms, and belong to the Mollicutes class, Candidatus Phytoplasma genus.
Xiao-Yan Wang   +6 more
doaj   +1 more source

Molecular characterization and evolution of the resident population of some alfalfa mosaic virus (AMV) isolates in Egypt

open access: yesBMC Microbiology, 2023
Background Alfalfa mosaic virus (AMV) is an important virus affecting many vegetable crops in Egypt. In this study, virus isolates were collected from naturally infected potato, tomato, alfalfa and clover plants that showed suspected symptoms of AMV in ...
Hala A. Amin   +3 more
doaj   +1 more source

Effect of Phytoplasma Associated with Sesame Phyllody on Ultrastructural Modification, Physio-Biochemical Traits, Productivity and Oil Quality

open access: yesPlants, 2022
Phytoplasmas are obligate cell-wall-less plant pathogenic bacteria that infect many economically important crops, causing considerable yield losses worldwide.
Eman A. Ahmed   +3 more
doaj   +1 more source

Isolation and characterization of three bacteriophages infecting Erwinia amylovora and their potential as biological control agent

open access: yesEgyptian Journal of Biological Pest Control, 2023
Background Fire Blight, incited by Erwinia amylovora, is one of the most damaging pear and apple diseases in the world. Fire blight was introduced to Egypt in the 1960 and threatens the Egypt’s costs for pear industry.
Wessam Hassan   +4 more
doaj   +1 more source

Iodixanol density gradients as an effective phytoplasma enrichment approach to improve genome sequencing

open access: yesFrontiers in Microbiology, 2022
Obtaining complete phytoplasma genomes is difficult due to the lack of a culture system for these bacteria. To improve genome assembly, a non-ionic, low- and iso-osmotic iodixanol (Optiprep™) density gradient centrifugation method was developed to enrich
Bianca Rodrigues Jardim   +7 more
doaj   +1 more source

A survey of ‘Candidatus Phytoplasma pyri’ isolates in the Czech Republic based on imp gene genotyping

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2022
‘Candidatus Phytoplasma spp.’ are pathogenic bacteria that infect many plant species. ‘Candidatus Phytoplasma pyri’, one of the members of the 16SrX group causes pear decline disease that adversely affects pear crops.
Lucie VALENTOVÁ   +8 more
doaj   +1 more source

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