A5021196240- Plant Virus Research Studies
- Plant and Fungal Interactions Research
- Insect-Plant Interactions and Control
- Plant Pathogenic Bacteria Studies
- Poxvirus research and outbreaks
- Plant Disease Resistance and Genetics
- Plant Reproductive Biology
- Transgenic Plants and Applications
- Herpesvirus Infections and Treatments
- Phytoplasmas and Hemiptera pathogens
- Horticultural and Viticultural Research
- Agriculture and Rural Development Research
- Animal Disease Management and Epidemiology
- Cocoa and Sweet Potato Agronomy
- Mosquito-borne diseases and control
- Agronomic Practices and Intercropping Systems
- Plant Physiology and Cultivation Studies
- Plant Pathogens and Fungal Diseases
- Plant tissue culture and regeneration
- Insect behavior and control techniques
- Forest Insect Ecology and Management
- Banana Cultivation and Research
- Agricultural pest management studies
- Animal Virus Infections Studies
- Zoonotic diseases and public health
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2015-2025
Institut Agro Montpellier
2011-2025
Centre Occitanie-Montpellier
2021-2025
Institut de Recherche pour le Développement
2000-2025
Université de Montpellier
2018-2025
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2023-2025
L'Institut Agro
2023-2025
Plant Health Institute de Montpellier
2021-2024
Biologie et Génétique des Interactions Plante-Parasite
2011-2021
United States Department of Agriculture
2004
Plum pox potyvirus (PPV) isolates may be divided into four groups separated by serological, molecular, and epidemiological differences. Monoclonal antibodies specific for the two major of isolates, represented D M serotypes virus, have been obtained. Polymerase chain reaction (PCR)-based assays allowing direct detection differentiation PPV also developed. We now report on a large-scale comparison these typing approaches. The results obtained show an overall excellent correlation between in...
A full-length genomic cDNA clone of a plum pox potyvirus (PPV) isolate belonging to the M strain (PPV-PS) has been cloned downstream from bacteriophage T7 polymerase promoter and sequenced. Transcripts resulting plasmid, pGPPVPS, were infectious and, in herbaceous hosts, produced symptoms that differed those virus progeny pGPPV, D PPV-R. Viable PPV-R/-PS chimeric viruses constructed by recombination clones vitro. Analysis plants infected with different chimeras indicated sequences encoding...
Abstract In an era marked by rapid global changes, the reinforcement and modernization of plant health surveillance systems have become imperative. Sixty-five scientists present here a research agenda for enhanced modernized to anticipate mitigate disease pest emergence. Our approach integrates wide range scientific fields (from life, social, physical engineering sciences) identifies key knowledge gaps, focusing on anticipation, risk assessment, early detection, multi-actor collaboration....
Characterising the spatio-temporal dynamics of pathogens in natura is key to ensuring their efficient prevention and control. However, it notoriously difficult estimate dispersal parameters at scales that are relevant real epidemics. Epidemiological surveys can provide informative data, but parameter estimation be hampered when timing epidemiological events uncertain, presence interactions between disease spread, surveillance, Further complications arise from imperfect detection huge number...
Sharka, caused by Plum Pox Virus (PPV), is far the most important infectious disease of peach [P. persica (L.) Batsch] and other Prunus species. The progressive spread virus in many growing areas throughout Europe poses serious issues to economic sustainability stone fruit crops, particular. adoption internationally agreed-upon rules for diagnostic tests, strain-specific monitoring schemes spatial-temporal modeling spread, are all essential a more effective sharka containment. EU regulations...
ABSTRACT The spatial pattern of Sharka disease, caused by Plum pox virus (PPV) strain M, was investigated in 18 peach plots located two areas southern France. PPV infections were monitored visually for each individual tree during one to three consecutive years. Point and correlation-type approaches undertaken using the binary data directly or after parsing them contiguous quadrats 4, 9, 16 trees. Ordinary runs generally revealed a low but variable proportion rows with adjacent symptomatic...
Disease surveillance is a keystone of human, animal, and plant health. It contributes to the prevention management epidemics. Over past two decades, several methodological frameworks have been developed for evaluation human animal health systems, but such approaches are still lacking in Here, we aimed at providing one first evaluations pest system. We applied semi-quantitative OASIS method, already successfully used centralized health, French system sharka, viral disease Prunus trees. A...
The relative durations of the incubation period (the time between inoculation and symptom expression) latent infectiousness host) are poorly documented for plant diseases. However, extent asynchrony ends these two periods (i.e., their mismatch) can be a key determinant epidemic dynamics many diseases consequently it is primary interest in design disease management strategies. In order to assess this mismatch, an experimental approach was developed applied using sharka, severe caused by Plum...
Identifying the key factors underlying spread of a disease is an essential but challenging prerequisite to design management strategies. To tackle this issue, we propose approach based on sensitivity analyses spatiotemporal stochastic model simulating plant epidemic. This work motivated by sharka, caused plum pox virus, in real landscape. We first carried out broad-range analysis, ignoring any prior information six epidemiological parameters, assess their intrinsic influence behaviour. A...
ABSTRACT The characterization of pathogenic properties two infectious clones Plum pox virus (PPV) isolates, pGPPV (D group) and pGPPVPS (M group), was investigated in their woody hosts (seedlings Prunus spp.). differed ability to infect plum peach cultivars, from no infection local systemic infection. phenotype determinants were located with a set chimeric viruses the clones. In plum, genomic fragment encoding P3 6K1 proteins, which might influence genome amplification or movement. capacity...
Improvement of management strategies epidemics is often hampered by constraints on experiments at large spatiotemporal scales. A promising approach consists modeling the biological epidemic process and human interventions, which both impact disease spread. However, few methods enable simultaneous optimization numerous parameters sophisticated control strategies. To do so, we propose a heuristic (i.e., practical improvement method approximating an optimal solution) based sequential...
Sugarcane yellow leaf virus (SCYLV), the causal agent of leaf, has been reported in an increasing number sugarcane-growing locations since its first report 1990s Brazil, Florida, and Hawaii. In this study, genetic diversity SCYLV was investigated using genome coding sequence (5,561 to 5,612 nt) 109 isolates from 19 geographical locations, including 65 new 16 regions worldwide. These were distributed three major phylogenetic lineages (BRA, CUB, REU), except for one isolate Guatemala....
We evaluated the impact of roguing on spread and persistence aggressive Plum pox virus strain M (PPV-M) in 19 peach orchard blocks Southern France. During a 7- to 10-year period, orchards were visually inspected for PPV symptoms, symptomatic trees removed every year. Disease incidence was low all at disease discovery <1% 16 blocks. The Sharka limited blocks, with an annual between 2 6%. However, new continuously detected, even after 7 10 years uninterrupted control measures. An extended...
Wheat dwarf virus, transmitted by the leafhopper Psammotettix alienus in a persistent, non-propagative manner, infects numerous species from Poaceae family. Data associated with wheat virus (WDV) suggest that some isolates preferentially infect while other barley. This allowed to define strain and barley strain. There are contradictory results literature regarding ability of each these two strains its non-preferred host. To improve knowledge on interactions between WDV wheat, transmission...
Plum pox virus was first detected in France the 1960s. Both PPV‐D and PPV‐M strains are present but epidemics related to strain late 1980s most problematic. The two PPV have unequal distributions peach apricot orchards different prevalences. More than 20 aphid species been identified as vectors of them do not colonize Prunus species. Thus, aphids involved spread essentially visiting aphids. main sources inoculum for leaves fruits infected stone‐fruit trees. Spontaneous, wild ornamental such...
Plum pox virus (PPV) causes sharka, the most damaging viral disease of stone fruit species. Seven distinct PPV strains are known; PPV-M, PPV-D, and PPV-Rec common (3). is a unique recombinant (3) between PPV-M PPV-D has been reported from plum, apricot, Japanese myrobalan, blackthorn in eastern central Europe, but never found peach as single natural infection (2). A survey was conducted during spring 2009 eight orchards located southwest, southeast, south regions Bulgaria to assess incidence...
Mapping and analyzing the disease status of individual plants within a study area at successive dates can give insight into processes involved in spread disease. We propose permutation method to analyze such spatiotemporal maps binary data (healthy or diseased plants) regularly spaced plantings. It requires little prior information on causes handles missing censored data. A Monte Carlo test is used assess whether location newly independent previously plants. The takes account significant...