questionsmedicales.fr
Eucaryotes
Straménopiles
Oomycetes
Phytophthora
Phytophthora : Questions médicales fréquentes
Termes MeSH sélectionnés :
Diagnostic
5
Phytophthora
Diagnostic médical
Symptômes
Maladies des plantes
Maladies fongiques
Diagnostic différentiel
Symptômes
5
Pourriture des racines
Phytopathologie
Fruits
Maladies des plantes
Espèces végétales
Phytopathologie
Prévention
5
Prévention
Gestion des maladies
Variétés résistantes
Sélection végétale
Contamination du sol
Désinfection
Pratiques culturales
Gestion des maladies
Traitements
5
Fongicides
Traitement des maladies
Efficacité des médicaments
Phytophthora
Santé des plantes
Gestion des maladies
Méthodes biologiques
Biocontrôle
Rotation des cultures
Gestion des maladies
Complications
5
Complications
Économie agricole
Environnement
Biodiversité
Pertes économiques
Agriculture
Gestion intégrée
Agriculture durable
Facteurs de risque
5
Facteurs de risque
Phytopathologie
Conditions climatiques
Épidémiologie
Sols argileux
Phytopathologie
Agriculture intensive
Vulnérabilité des cultures
Variétés sensibles
Phytopathologie
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"@type": "Question",
"name": "Quels tests de laboratoire sont utilisés ?",
"position": 2,
"acceptedAnswer": {
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"@type": "Question",
"name": "Quels symptômes indiquent une infection ?",
"position": 3,
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"name": "Peut-on confondre Phytophthora avec d'autres champignons ?",
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"name": "Quels sont les symptômes courants de Phytophthora ?",
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"position": 8,
"acceptedAnswer": {
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"@type": "Question",
"name": "Les symptômes varient-ils selon les plantes ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les symptômes peuvent varier selon l'espèce de plante hôte et les conditions environnementales."
}
},
{
"@type": "Question",
"name": "Y a-t-il des signes visibles sur le sol ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des zones de sol détrempé et des débris végétaux en décomposition peuvent être des signes."
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},
{
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"name": "Comment prévenir les infections par Phytophthora ?",
"position": 11,
"acceptedAnswer": {
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"text": "La prévention inclut une bonne gestion de l'eau, des pratiques culturales et des variétés résistantes."
}
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{
"@type": "Question",
"name": "Quel rôle joue le drainage dans la prévention ?",
"position": 12,
"acceptedAnswer": {
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"text": "Un bon drainage réduit l'humidité du sol, limitant ainsi la prolifération de Phytophthora."
}
},
{
"@type": "Question",
"name": "Les variétés de plantes résistantes existent-elles ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, certaines variétés de plantes sont développées pour être résistantes à Phytophthora."
}
},
{
"@type": "Question",
"name": "Comment éviter la contamination du sol ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Éviter l'utilisation d'outils contaminés et pratiquer la désinfection du sol peut aider."
}
},
{
"@type": "Question",
"name": "Les pratiques culturales peuvent-elles aider ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des pratiques comme l'espacement des plantes et la gestion des résidus peuvent réduire les risques."
}
},
{
"@type": "Question",
"name": "Quels traitements sont efficaces contre Phytophthora ?",
"position": 16,
"acceptedAnswer": {
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"text": "Les traitements incluent des fongicides spécifiques et des pratiques culturales adaptées."
}
},
{
"@type": "Question",
"name": "Les fongicides sont-ils toujours efficaces ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'efficacité des fongicides peut varier selon la souche de Phytophthora et les conditions d'application."
}
},
{
"@type": "Question",
"name": "Comment améliorer la santé des plantes infectées ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Améliorer le drainage et réduire l'humidité peut aider à restaurer la santé des plantes."
}
},
{
"@type": "Question",
"name": "Peut-on utiliser des méthodes biologiques ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des agents biologiques comme des champignons antagonistes peuvent être utilisés."
}
},
{
"@type": "Question",
"name": "Quel est le rôle de la rotation des cultures ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "La rotation des cultures aide à réduire l'accumulation de Phytophthora dans le sol."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir avec Phytophthora ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications incluent la perte de rendement, la dégradation des cultures et des pertes économiques."
}
},
{
"@type": "Question",
"name": "Phytophthora peut-elle affecter plusieurs cultures ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, Phytophthora peut infecter une large gamme de cultures, y compris les légumes et les fruits."
}
},
{
"@type": "Question",
"name": "Y a-t-il des impacts environnementaux ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les infections peuvent perturber les écosystèmes locaux et réduire la biodiversité."
}
},
{
"@type": "Question",
"name": "Les pertes économiques sont-elles significatives ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les pertes économiques dues à Phytophthora peuvent être considérables pour les agriculteurs."
}
},
{
"@type": "Question",
"name": "Comment les agriculteurs peuvent-ils faire face aux complications ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les agriculteurs peuvent adopter des stratégies de gestion intégrée pour minimiser les impacts."
}
},
{
"@type": "Question",
"name": "Quels sont les principaux facteurs de risque ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent l'humidité élevée, le sol mal drainé et les pratiques culturales inadéquates."
}
},
{
"@type": "Question",
"name": "Les conditions climatiques influencent-elles l'infection ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des conditions climatiques humides favorisent la propagation de Phytophthora."
}
},
{
"@type": "Question",
"name": "Les sols argileux sont-ils plus à risque ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les sols argileux retiennent plus d'eau, augmentant le risque d'infection par Phytophthora."
}
},
{
"@type": "Question",
"name": "Les pratiques agricoles intensives augmentent-elles le risque ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les pratiques agricoles intensives peuvent accroître la vulnérabilité des cultures à Phytophthora."
}
},
{
"@type": "Question",
"name": "Les variétés sensibles sont-elles un facteur de risque ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la culture de variétés sensibles augmente le risque d'infection par Phytophthora."
}
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}
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}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 13/05/2025
Contenu vérifié selon les dernières recommandations médicales
5 publications dans cette catégorie
Affiliations :
Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253, Bragança, Portugal. albracho@ipb.pt.
Publications dans "Phytophthora" :
4 publications dans cette catégorie
Affiliations :
Crop Production and Pest Control Research Unit, Agricultural Research Service, USDA, and College of Agriculture, Purdue University, West Lafayette, Indiana, United States of America.
Publications dans "Phytophthora" :
4 publications dans cette catégorie
Affiliations :
Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253, Bragança, Portugal.
Publications dans "Phytophthora" :
4 publications dans cette catégorie
Affiliations :
School of Computer Science and Technology, Dalian University of Technology, Dalian 116024, China.
Publications dans "Phytophthora" :
3 publications dans cette catégorie
Affiliations :
Cell and Molecular Sciences, James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK.
Publications dans "Phytophthora" :
3 publications dans cette catégorie
Affiliations :
Department of Plant Pathology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China.
The Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, Jiangsu, 210095, China.
Publications dans "Phytophthora" :
3 publications dans cette catégorie
Affiliations :
Department of Plant Pathology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China.
The Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, Jiangsu, 210095, China.
Publications dans "Phytophthora" :
3 publications dans cette catégorie
Affiliations :
Department of Plant Pathology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China.
The Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, Jiangsu, 210095, China.
Publications dans "Phytophthora" :
3 publications dans cette catégorie
Affiliations :
School of Bioengineering, Dalian University of Technology, Dalian 116024, China.
Publications dans "Phytophthora" :
3 publications dans cette catégorie
Affiliations :
School of Bioengineering, Dalian University of Technology, Dalian 116024, China. Electronic address: ysluan@dlut.edu.cn.
Publications dans "Phytophthora" :
3 publications dans cette catégorie
Affiliations :
State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China.
Publications dans "Phytophthora" :
3 publications dans cette catégorie
Affiliations :
China Agricultural University, Beijing 100193, China; State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China. Electronic address: seedling@cau.edu.cn.
Publications dans "Phytophthora" :
3 publications dans cette catégorie
Affiliations :
School of Bioengineering, Dalian University of Technology, Dalian, 116024, China.
Publications dans "Phytophthora" :
2 publications dans cette catégorie
Affiliations :
Department of Plant Breeding, Swedish University of Agricultural Sciences, Lomma, SE-234 22, Sweden.
Publications dans "Phytophthora" :
2 publications dans cette catégorie
Affiliations :
Gannan Academy of Sciences, 557367, Ganzhou, Jiangxi, China; 1373583449@qq.com.
Publications dans "Phytophthora" :
2 publications dans cette catégorie
Affiliations :
Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Campus Soane Nazaré de Andrade, Rodovia Jorge Amado, km 16, 45662-900, Ilhéus, BA, Brazil.
Publications dans "Phytophthora" :
2 publications dans cette catégorie
Affiliations :
Departamento de Ciências Agrárias, Universidade Federal do Recôncavo da Bahia, Cruz das Almas, Bahia 44380-000, Brazil.
Publications dans "Phytophthora" :
2 publications dans cette catégorie
Affiliations :
Consiglio Nazionale delle Ricerche, Institute of Biophysics, Via S. Lorenzo, I-56100 Pisa, Italy.
Publications dans "Phytophthora" :
2 publications dans cette catégorie
Affiliations :
Embrapa Mandioca e Fruticultura. Cruz das Almas, Bahia 44380-000, Brazil.
Publications dans "Phytophthora" :
2 publications dans cette catégorie
Affiliations :
Embrapa Mandioca e Fruticultura. Cruz das Almas, Bahia 44380-000, Brazil; and Corresponding author. Email: abelmon.gesteira@embrapa.br.
Publications dans "Phytophthora" :
We describe an atypical presentation of aberrant regeneration of the 3...
The full assessment of the visual system must include the evaluation of the optical quality of the eye and neural visual functions. The objective evaluation of the retinal image quality is often carri...
For a good vision screening battery to quickly and accurately reflect the status of the human visual system it should be relevant, reliable, and streamlined. Because the early visual system has limite...
Colour vision deficiencies (CVDs) indicate potential genetic variations and can be important biomarkers of acquired impairment in many neuro-ophthalmic diseases. However, CVDs are typically measured w...
This study was conducted to analyze the influence of binocular vision and accommodation anomalies on refraction dynamics. Our results may help to design more accurate autorefractors and to better unde...
This study aimed to verify whether viewing conditions (open- or closed-field) or vision anomalies, such as ocular surface diseases, accommodative dysfunctions, and binocular vision anomalies, influenc...
The subjective refraction of 64 subjects aged 23 to 60 years was measured during a comprehensive optometric examination, and the Ocular Surface Disease Index questionnaire was collected. Twenty succes...
The three-way analysis of variance tests showed that there is no influence of accommodation dysfunctions (P = .22 for ARK-510A), binocular vision anomalies (P = .97 for ARK-510A), and ocular surface d...
The study showed that the presence of accommodative dysfunctions or binocular vision anomalies might increase the range of short-term refractive state variation. The impact of vision anomalies differs...
Digital reading devices have become increasingly popular among people with low vision. Because displays come in many sizes ranging from smart watches to large desktop computer displays, it is importan...
The selection of effective digital displays for reading by people with low vision focuses attention on the interacting effects of print size, display size, font, visual acuity, and reading distance. T...
We emphasize two critical factors in selecting an appropriate reading display: angular print size, which should exceed the individual's critical print size, and display size, which should allow at lea...
Through an illustrative example, we demonstrate how our approach can be used to determine display size for a low-vision individual with 20/200 acuity and central field loss who wants to read at 30-cm ...
We provide a procedure to guide the selection of appropriate displays for a wide range of acuities. Our approach can help clinicians in making recommendations for their patients, digital product desig...
This study aimed to investigate the difference between cycloplegic and noncycloplegic refraction and evaluate the pseudomyopia prevalence in Chinese preschool children during the outbreak of COVID-19....
A cross-sectional study was conducted in the Tongzhou District of Beijing, China. Refractive error was measured under both noncycloplegic and cycloplegic conditions with autorefraction. The difference...
Out of the 1487 participants who were enrolled in the study, 1471 individuals (98.92%) between the ages of 3-6 years completed all required procedures. A statistically significant difference in refrac...
Cycloplegic refraction is more sensitive than a noncycloplegic one for measuring refractive error in preschool children. Pseudomyopia is prevalent in preschool children during the COVID-19 outbreak pe...
For a transparent well with a known volume capacity, changes in fluid level result in predictable changes in magnification of an overhead light source. For a given well size and fluid, the relationshi...
Contrast sensitivity measurements using a computer display have been reported to lack accuracy when displaying small contrasts. This report investigates if the characterization/calibration of display ...
This study aimed to investigate what errors in contrast sensitivity may result from characterizing a display by fitting a gamma curve through physical or psychophysical luminance measurement data....
The luminance functions of four different in-plane switching liquid crystal displays (IPS LCDs) have been measured for all 256 gray levels (the actual luminance function). This has been compared with ...
The amount of error differs considerably between the displays. In general, for large contrasts (Michelson log CS <1.2), the error is acceptable (<<0.15 log unit). However, for smaller contrasts (Miche...
To improve the accuracy of testing contrast sensitivity with an LCD, it is necessary to fully characterize the display, measuring the luminance of each gray level instead of fitting a smooth gamma fun...
To investigate the agreement between a mobile applet-based visual acuity (VA) self-test program and the conventional VA tests....
This consecutive case series study included 121 children and adults (242 eyes). Patients were classified into three groups according to age (children, adolescents, and adults). They underwent uncorrec...
Correlations among UDVA, DVA with ASC, UNVA, and NVA with ASC between the two methods were significant in all subjects (all p < 0.001). The intraclass correlation coefficient were 0.960, 0.845, 0.960,...
There is good agreement between the mobile applet-based VA self-test program and the conventional VA tests. The VA self-test has good practical value especially in the current pandemic, allowing self-...