questionsmedicales.fr
Eucaryotes
Straménopiles
Oomycetes
Phytophthora
Phytophthora : Questions médicales fréquentes
Termes MeSH sélectionnés :
Ventilation-Perfusion Scan
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
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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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"name": "Comment diagnostiquer une infection par Phytophthora ?",
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"text": "Le diagnostic repose sur l'observation des symptômes et des tests de laboratoire."
}
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{
"@type": "Question",
"name": "Quels tests de laboratoire sont utilisés ?",
"position": 2,
"acceptedAnswer": {
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"text": "Des cultures fongiques et des tests PCR peuvent être réalisés pour identifier Phytophthora."
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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 ?",
"position": 6,
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"name": "Comment se manifeste la pourriture des racines ?",
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"position": 8,
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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": {
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"text": "Des zones de sol détrempé et des débris végétaux en décomposition peuvent être des signes."
}
},
{
"@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."
}
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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": {
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"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": {
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"text": "Oui, des pratiques comme l'espacement des plantes et la gestion des résidus peuvent réduire les risques."
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"@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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}
]
}
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" :
Pulmonary blood flow can be assessed on ventilation-perfusion (VQ) scan with relative lung perfusion, with a 55% to 45% (or 10%) right-to-left differential considered normal. We hypothesized that wide...
We conducted a retrospective cohort study on all patients who underwent double-lung transplant in our program between 2005 and 2016, identifying patients with a wide perfusion differential of >10% on ...
Of 340 patients who met inclusion criteria, 169 (49%) had a relative perfusion differential of ≥ 10% on a 3-mo VQ scan. Patients with increased perfusion differential had increased risk of death or re...
Wide lung perfusion differential was common after lung transplant in our cohort and associated with increased risk of death, poor lung function, and CLAD onset. The nature of this abnormality and its ...
Although COVID-19 infection is associated with the increased risk of pulmonary thromboembolism (PTE), COVID-19 pulmonary lesions cause ventilation-perfusion (V/Q) patterns other than PTE. Although ext...
A 67-year-old woman presented with shortness of breath and a ventilation/perfusion scan was performed. Initial images demonstrated mismatched bilateral apical defects that would be classified as high ...
Pulmonary embolism (PE) is a challenge to diagnose and when missed, exposes patients to potentially fatal recurrent events. Beyond CT pulmonary angiography (CTPA) and planar ventilation/perfusion (V/Q...
We will include a total of 3672 patients with suspected PE requiring chest imaging, randomised into three different groups, each using a different diagnostic strategy based on SPECT V/Q, CTPA and plan...
This trial is funded by a grant from Brest University Hospital and by INVENT. The study protocol was approved by Biomedical Research Ethics Committee. The investigator or delegate will obtain signed i...
NCT02983760....
The hot quadrate sign is defined as an intense arterial enhancement in the hepatic quadrate lobe, most frequently encountered on CT angiograms in patients with central venous occlusion. It has also be...
Clinicians' interpretation of lung scan reports will determine which further management decisions are taken when potentially fatal pulmonary embolism (PE) is suspected....
To assess current referring clinicians' interpretation of the terminology used in ventilation/perfusion (V/Q) scan reports, whether this interpretation is affected by experience level, and how it affe...
This was a questionnaire-based cross-sectional study. Between September 2020 and May 2021, 300 questionnaires were distributed among clinicians who refer patients for V/Q scans....
Of the 162 clinicians who responded, 94% thought that there is >85% likelihood of PE or definitely PE present when a scan is reported as 'high probability of PE'; 87% interpreted 'low probability of P...
The findings of this study regarding high-probability scan results were in line with existing literature on lung scan report interpretation. However, our findings regarding low-probability scan result...
We present a rare finding on lung ventilation-perfusion (V/Q) scintigraphy for a woman with longstanding dyspnea. CT of the chest showed volume loss on the right side, which raised concern about possi...
Introduction The COVID-19 pandemic has profoundly impacted medical practices, including nuclear medicine. To minimize aerosol transmission risks, lung perfusion scintigraphy was preferred over traditi...
Ventilation-perfusion (V/Q) scan coupled with single photon emission computed tomography (SPECT) is commonly used for the diagnosis of pulmonary embolism (PE). An abnormal chest x-ray (CXR) is deemed ...
To determine if an abnormal CXR impacted on V/Q scan interpretation and subsequent management....
A retrospective cohort analysis of all patients who underwent a V/Q scan for diagnosis of suspected acute PE between March 2016 and 2022 was performed. CXR reports were reviewed and classified as norm...
A total of 340 cases were evaluated. Of the positive V/Q scans (92/340), 98.3% of the normal CXR were anticoagulated compared to 100% of the abnormal CXR group. Of the negative V/Q scans (239/340), no...
An abnormal CXR does not affect the reliability of V/Q scan interpretation in the diagnosis of PE when coupled with SPECT. Unless clinically indicated, the mandate by clinical society guidelines for a...
In coronavirus disease 2019 (COVID-19) patients, clinical manifestations as well as chest CT lesions are variable. Lung scintigraphy allows to assess and compare the regional distribution of ventilati...
We explored a national registry including V/Q SPECT/CT performed during a proven acute SARS-CoV-2 infection. Chest CT findings of COVID-19 disease were classified in 3 elementary lesions: ground-glass...
V/Q SPECT/CT was performed in 145 patients recruited in 9 nuclear medicine departments. Parenchymal lesions were visible in 126 patients (86.9%). Ground-glass opacities were visible in 33 patients (22...
In COVID-19 patients assessed with V/Q SPECT/CT, a large proportion demonstrated parenchymal lung lesions on CT, responsible for ventilation and perfusion injury. COVID-19-related pulmonary lesions we...