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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"@type": "Question",
"name": "Quels sont les symptômes courants de Phytophthora ?",
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"position": 8,
"acceptedAnswer": {
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"text": "Oui, les fruits peuvent montrer des taches et une décomposition, surtout en conditions humides."
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},
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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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},
{
"@type": "Question",
"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."
}
},
{
"@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": {
"@type": "Answer",
"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 12/02/2025
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" :
This study was designed to estimate the burden of blindness and vision impairment in school children, and to determine the proportion of students meeting the visual acuity (VA) demand for their classr...
Dynamic visual acuity (DVA) is crucial for the perception of moving objects. While traditional DVA assessment tools predominantly focus on horizontal movements, the evaluation of vertical DVA remains ...
To investigate the early visual acuity (VA) changes that occur after trabeculectomy and their reversal with recovery....
Two hundred ninety-two eyes of 292 patients after initial trabeculectomy as a standalone procedure fulfilling the following conditions were included: 1) patients with a postoperative follow-up of at l...
The mean IOPs (mmHg) after trabeculectomy were significantly lower than preoperatively during the entire period (P < 0.0001). The mean corrected VA for all patients was 0.06 ± 0.17, 0.24 ± 0.38, 0.19 ...
The frequency of serious vision loss was 4.45% for two or more levels of vision loss, and early postoperative VA changes after trabeculectomy may not be reversed even 3 months later. VA loss is influe...
Visual perception is limited by spatial resolution, the ability to discriminate fine details. Spatial resolution not only declines with eccentricity but also differs for polar angle locations around t...
Standard-of-care assessment for children with amblyopia includes measuring amblyopic eye best-corrected visual acuity (AE BCVA) with the fellow eye occluded. By definition, this abolishes the interocu...
Cross-sectional study....
Dichoptic and monocular AE BCVA of children aged 6-12 years (42 with amblyopia, 24 with recovered normal AE BCVA, 30 control) were measured. Stereoacuity, suppression, eye-hand coordination, and readi...
Overall, 81% of amblyopic children had worse dichoptic than monocular AE BCVA (mean difference=0.15±0.11 logMAR; P < .0001), and 71% of children with recovered normal AE BCVA had worse dichoptic than ...
Dichoptic AE BCVA deficits were worse than monocular AE BCVA deficits and were associated with reduced stereoacuity and suppression, consistent with the hypothesis that binocular dysfunction plays a r...
Evaluate the differences between clinical visual acuity (VA) as recorded in medical records and electronic Early Treatment Diabetic Retinopathy Study (eETDRS) protocol VA measurements and factors affe...
Retrospective chart review....
Study and fellow eyes of participants enrolled in DRCR Retina Network Protocols AC and AE (diabetic macular edema), and W (nonproliferative diabetic retinopathy) with clinical VA recorded within 3 mon...
Differences and their association with patient and ocular factors were evaluated using linear mixed models with random effects for correlations within sites and participants....
Difference between VA letter scores measured by eETDRS during a study visit versus measured by Snellen during a regular clinical visit (Snellen fraction converted to eETDRS)....
Data from 1016 eyes (511 participants) across 74 sites were analyzed. The mean VA measurements were 68.6 letters (Snellen equivalent 20/50) at the clinical visit and 76.3 letters (Snellen equivalent 2...
On average, clinical Snellen VA is 1 to 2 lines worse than eETDRS protocol refraction and VA testing, which may partly explain why clinical practice does not always replicate clinical trial results. E...
Proprietary or commercial disclosure may be found after the references....
Visual acuity declines with age, and disease-related visual acuity changes vary. We evaluated factors affecting visual acuity and age-related visual acuity in diseases associated with reduced visual a...
Lighting conditions significantly influence visual acuity (VA), visual function, and quality of life. Previous research highlighted a correlation between luminance and VA but left a gap in understandi...
This study aimed to investigate the influence of both central and surrounding luminance on VA through distance VA measurements....
A dual-component lighting system was utilized, comprising a self-illuminated ETDRS chart and a skyLED system for consistent surrounding illumination. Two experimental setups were conducted: the first ...
Sixty-six participants with refractive errors between 0.0 D and -2.75 D were tested under various lighting conditions. Both uncorrected refractive error (URE) and corrected refractive error (CRE) eyes...
Paired t-tests were used to evaluate the statistical significance of differences in VA scores....
Experiment 1 demonstrated a significant increase in VA scores, with mean improvements of -0.120 LogMAR for URE eyes and -0.073 LogMAR for CRE eyes as chart luminance increased from 26 cd/m² to 153 cd/...
This study emphasizes the significant impact of both central and peripheral luminance on VA. The introduction of the skyLED lighting system underlines the importance of optimal lighting for visual per...
Silicone oil is an established intraocular surgical aid, which enables the treatment of the most complex starting situations but no other alternative has been found; however, the available data indica...
Human sensitivity to visual input often scales with the magnitude of evoked responses in the brain. Here, we demonstrate an exception. We record electroencephalography (EEG) while people attempt to re...