questionsmedicales.fr
Phénomènes physiologiques des plantes
Phénomènes physiologiques des plantes : Questions médicales fréquentes
Termes MeSH sélectionnés :
Diagnostic
5
Photosynthèse
Échanges gazeux
Transpiration
Évaporation
Stress hydrique
Flétrissement
Symptômes
5
Carence en azote
Chlorose
Carence en potassium
Nécrose
Excès d'eau
Pourriture des racines
Carence en phosphore
Retard de croissance
Stress thermique
Croissance
Prévention
5
Maladies des plantes
Circulation de l'air
Traitements
5
Engrais
Carence en nutriments
Excès d'eau
Aération du sol
Maladies fongiques
Fongicides
Complications
5
Carence en azote
Retard de croissance
Excès d'eau
Pourriture des racines
Stress hydrique
Défoliation
Carence en phosphore
Floraison
Stress thermique
Brûlures foliaires
Facteurs de risque
5
Carences
Gestion de l'eau
Stress hydrique
Sécheresse
Pollution
Santé des plantes
Maladies fongiques
Humidité
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"name": "Diagnostic",
"headline": "Diagnostic sur Phénomènes physiologiques des plantes",
"description": "Comment diagnostiquer la photosynthèse chez les plantes ?\nQuels tests pour mesurer la transpiration des plantes ?\nComment évaluer la respiration des plantes ?\nQuels indicateurs de stress hydrique chez les plantes ?\nComment détecter la photosensibilité des plantes ?",
"url": "https://questionsmedicales.fr/mesh/D018521?mesh_terms=Temperature#section-diagnostic"
},
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"@type": "MedicalWebPage",
"name": "Symptômes",
"headline": "Symptômes sur Phénomènes physiologiques des plantes",
"description": "Quels symptômes d'une carence en azote chez les plantes ?\nComment reconnaître une carence en potassium ?\nQuels signes d'excès d'eau chez les plantes ?\nQuels symptômes d'une carence en phosphore ?\nComment identifier un stress thermique chez les plantes ?",
"url": "https://questionsmedicales.fr/mesh/D018521?mesh_terms=Temperature#section-symptômes"
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"headline": "Prévention sur Phénomènes physiologiques des plantes",
"description": "Comment prévenir les carences en nutriments ?\nQuelles pratiques pour éviter le stress hydrique ?\nComment prévenir les maladies des plantes ?\nQuelles mesures pour éviter l'excès d'eau ?\nComment prévenir le stress thermique ?",
"url": "https://questionsmedicales.fr/mesh/D018521?mesh_terms=Temperature#section-prévention"
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"headline": "Traitements sur Phénomènes physiologiques des plantes",
"description": "Comment traiter une carence en nutriments ?\nQuelles solutions pour le stress hydrique ?\nComment remédier à un excès d'eau ?\nQuelles méthodes pour améliorer la photosynthèse ?\nComment traiter les maladies fongiques des plantes ?",
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"name": "Complications",
"headline": "Complications sur Phénomènes physiologiques des plantes",
"description": "Quelles complications d'une carence en azote ?\nQuels risques d'un excès d'eau ?\nQuelles complications d'un stress hydrique prolongé ?\nQuels effets d'une carence en phosphore ?\nQuelles complications d'un stress thermique ?",
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"name": "Facteurs de risque",
"headline": "Facteurs de risque sur Phénomènes physiologiques des plantes",
"description": "Quels facteurs augmentent le risque de carences ?\nComment le climat influence-t-il la photosynthèse ?\nQuels facteurs augmentent le stress hydrique ?\nComment la pollution affecte-t-elle les plantes ?\nQuels facteurs de risque pour les maladies fongiques ?",
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"@type": "Question",
"name": "Comment diagnostiquer la photosynthèse chez les plantes ?",
"position": 1,
"acceptedAnswer": {
"@type": "Answer",
"text": "On évalue la production d'oxygène et l'absorption de CO2 en conditions contrôlées."
}
},
{
"@type": "Question",
"name": "Quels tests pour mesurer la transpiration des plantes ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "On utilise des pots de pesée pour mesurer la perte d'eau par évaporation."
}
},
{
"@type": "Question",
"name": "Comment évaluer la respiration des plantes ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "On mesure la consommation d'oxygène et la production de CO2 dans un environnement fermé."
}
},
{
"@type": "Question",
"name": "Quels indicateurs de stress hydrique chez les plantes ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "On observe le flétrissement, la décoloration des feuilles et la chute prématurée des fleurs."
}
},
{
"@type": "Question",
"name": "Comment détecter la photosensibilité des plantes ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "On observe les mouvements des feuilles et la direction de croissance en fonction de la lumière."
}
},
{
"@type": "Question",
"name": "Quels symptômes d'une carence en azote chez les plantes ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les feuilles jaunissent et se dessèchent, surtout les plus anciennes."
}
},
{
"@type": "Question",
"name": "Comment reconnaître une carence en potassium ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les feuilles présentent des bords bruns et des taches nécrotiques."
}
},
{
"@type": "Question",
"name": "Quels signes d'excès d'eau chez les plantes ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les racines pourrissent, les feuilles jaunissent et la plante flétrit."
}
},
{
"@type": "Question",
"name": "Quels symptômes d'une carence en phosphore ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les plantes montrent un retard de croissance et des feuilles violettes."
}
},
{
"@type": "Question",
"name": "Comment identifier un stress thermique chez les plantes ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les feuilles se recroquevillent, et la croissance est ralentie."
}
},
{
"@type": "Question",
"name": "Comment prévenir les carences en nutriments ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Utiliser des engrais équilibrés et effectuer des analyses de sol régulières."
}
},
{
"@type": "Question",
"name": "Quelles pratiques pour éviter le stress hydrique ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Installer un système d'irrigation et mulcher le sol pour conserver l'humidité."
}
},
{
"@type": "Question",
"name": "Comment prévenir les maladies des plantes ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Assurer une bonne circulation de l'air et éviter l'humidité excessive."
}
},
{
"@type": "Question",
"name": "Quelles mesures pour éviter l'excès d'eau ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Utiliser des pots avec drainage et éviter les arrosages excessifs."
}
},
{
"@type": "Question",
"name": "Comment prévenir le stress thermique ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Fournir de l'ombre et arroser les plantes pendant les périodes chaudes."
}
},
{
"@type": "Question",
"name": "Comment traiter une carence en nutriments ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Appliquer des engrais spécifiques selon le nutriment manquant."
}
},
{
"@type": "Question",
"name": "Quelles solutions pour le stress hydrique ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Augmenter l'arrosage et améliorer le drainage du sol."
}
},
{
"@type": "Question",
"name": "Comment remédier à un excès d'eau ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Réduire l'arrosage et améliorer l'aération du sol."
}
},
{
"@type": "Question",
"name": "Quelles méthodes pour améliorer la photosynthèse ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Optimiser l'éclairage et la concentration de CO2 dans l'environnement."
}
},
{
"@type": "Question",
"name": "Comment traiter les maladies fongiques des plantes ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Utiliser des fongicides appropriés et retirer les parties infectées."
}
},
{
"@type": "Question",
"name": "Quelles complications d'une carence en azote ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Peut entraîner un retard de croissance et une faible production de fruits."
}
},
{
"@type": "Question",
"name": "Quels risques d'un excès d'eau ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Peut provoquer la pourriture des racines et la mort de la plante."
}
},
{
"@type": "Question",
"name": "Quelles complications d'un stress hydrique prolongé ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Peut entraîner la défoliation et la mort des plantes."
}
},
{
"@type": "Question",
"name": "Quels effets d'une carence en phosphore ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Peut réduire la floraison et la fructification des plantes."
}
},
{
"@type": "Question",
"name": "Quelles complications d'un stress thermique ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Peut causer des brûlures foliaires et un affaiblissement général."
}
},
{
"@type": "Question",
"name": "Quels facteurs augmentent le risque de carences ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un sol pauvre, une mauvaise gestion de l'eau et un manque d'engrais."
}
},
{
"@type": "Question",
"name": "Comment le climat influence-t-il la photosynthèse ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des températures extrêmes et un manque de lumière peuvent réduire la photosynthèse."
}
},
{
"@type": "Question",
"name": "Quels facteurs augmentent le stress hydrique ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des périodes de sécheresse prolongées et un sol mal drainé augmentent le stress."
}
},
{
"@type": "Question",
"name": "Comment la pollution affecte-t-elle les plantes ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "La pollution de l'air et du sol peut nuire à la croissance et à la santé des plantes."
}
},
{
"@type": "Question",
"name": "Quels facteurs de risque pour les maladies fongiques ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'humidité élevée et le manque de circulation d'air favorisent les maladies fongiques."
}
}
]
}
]
}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 29/03/2025
Contenu vérifié selon les dernières recommandations médicales
2 publications dans cette catégorie
Affiliations :
National Research Council of Italy-Institute of Sustainable Plant Protection (CNR-IPSP), 50019 Firenze, Italy.
Publications dans "Phénomènes physiologiques des plantes" :
2 publications dans cette catégorie
Affiliations :
Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
Publications dans "Phénomènes physiologiques des plantes" :
2 publications dans cette catégorie
Affiliations :
Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China. wbshenh@njau.edu.cn.
Publications dans "Phénomènes physiologiques des plantes" :
2 publications dans cette catégorie
Affiliations :
College of Landscape Architecture, Northeast Forestry University, Harbin 150040, Heilongjiang, China.
Publications dans "Phénomènes physiologiques des plantes" :
2 publications dans cette catégorie
Affiliations :
College of Landscape Architecture, Northeast Forestry University, Harbin 150040, Heilongjiang, China.
School of Life & Environmental Sciences, Wenzhou university, Wenzhou 325035, Zhejiang, China.
Publications dans "Phénomènes physiologiques des plantes" :
2 publications dans cette catégorie
Affiliations :
College of Landscape Architecture, Northeast Forestry University, Harbin 150040, Heilongjiang, China.
Publications dans "Phénomènes physiologiques des plantes" :
2 publications dans cette catégorie
Affiliations :
Earth & Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
Publications dans "Phénomènes physiologiques des plantes" :
2 publications dans cette catégorie
Affiliations :
The Robert H Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot 7610001, Israel.
Publications dans "Phénomènes physiologiques des plantes" :
2 publications dans cette catégorie
Affiliations :
The Robert H Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot 7610001, Israel. Electronic address: menachem.moshelion@mail.huji.ac.il.
Publications dans "Phénomènes physiologiques des plantes" :
1 publication dans cette catégorie
Affiliations :
Plant and Agribiosciences Research Centre, Ryan Institute, National University of Ireland Galway (NUI Galway), Galway, Ireland. peter.mckeown@nuigalway.ie.
Publications dans "Phénomènes physiologiques des plantes" :
1 publication dans cette catégorie
Affiliations :
Plant and Agribiosciences Research Centre, Ryan Institute, National University of Ireland Galway (NUI Galway), Galway, Ireland.
Publications dans "Phénomènes physiologiques des plantes" :
1 publication dans cette catégorie
Affiliations :
Australian Institute of Microbiology and Infection, University of Technology Sydney, Broadway, New South Wales, Australia.
Publications dans "Phénomènes physiologiques des plantes" :
1 publication dans cette catégorie
Affiliations :
Australian Institute of Microbiology and Infection, University of Technology Sydney, Broadway, New South Wales, Australia.
Publications dans "Phénomènes physiologiques des plantes" :
1 publication dans cette catégorie
Affiliations :
Australian Institute of Microbiology and Infection, University of Technology Sydney, Broadway, New South Wales, Australia.
Australian Centre for Genomic Epidemiological Microbiology, University of Technology Sydney, Broadway, New South Wales, Australia.
Publications dans "Phénomènes physiologiques des plantes" :
1 publication dans cette catégorie
Affiliations :
Australian Institute of Microbiology and Infection, University of Technology Sydney, Broadway, New South Wales, Australia.
Australian Centre for Genomic Epidemiological Microbiology, University of Technology Sydney, Broadway, New South Wales, Australia.
Publications dans "Phénomènes physiologiques des plantes" :
1 publication dans cette catégorie
Affiliations :
Australian Institute of Microbiology and Infection, University of Technology Sydney, Broadway, New South Wales, Australia.
Publications dans "Phénomènes physiologiques des plantes" :
1 publication dans cette catégorie
Affiliations :
Australian Institute of Microbiology and Infection, University of Technology Sydney, Broadway, New South Wales, Australia.
School of Chemical Engineering, University of New South Wales, Sydney, New South Wales, Australia.
Publications dans "Phénomènes physiologiques des plantes" :
1 publication dans cette catégorie
Affiliations :
Marine Biological Association, the Laboratory, Citadel Hill, Plymouth, UK. Electronic address: cbr@MBA.ac.uk.
Publications dans "Phénomènes physiologiques des plantes" :
1 publication dans cette catégorie
Affiliations :
Department of Biology, Indiana University, Bloomington, IN, 47405, USA.
Publications dans "Phénomènes physiologiques des plantes" :
1 publication dans cette catégorie
Affiliations :
Division of Regenerative Biology, School of Biomedical Sciences, University of Western Australia, Perth, 6009, Australia.
Publications dans "Phénomènes physiologiques des plantes" :
Temperature is one of the most important factors in all living organisms for survival. Being a unicellular organism, bacterium requires sensitive sensing and defense mechanisms to tolerate changes in ...
While fluctuations in healthy brain temperature have been investigated over time periods of weeks to months, dynamics over shorter time periods are less clear....
To identify physiological fluctuations in brain temperature in healthy volunteers over time scales of approximately 1 hour....
Prospective....
A total of 30 healthy volunteers (15 female; 26 ± 4 years old)....
3 T; T1-weighted magnetization-prepared rapid gradient-echo (MPRAGE) and semi-localized by adiabatic selective refocusing (sLASER) single-voxel spectroscopy....
Brain temperature was calculated from the chemical shift difference between N-acetylaspartate and water. To evaluate within-scan repeatability of brain temperature and the brain-body temperature diffe...
A hierarchical linear mixed model was used to calculate within-scan and between-scan correlations (R...
A significant difference in brain temperature was observed between scans (-0.4 °C) but body temperature was stable (P = .59). Brain temperature (37.9 ± 0.7 °C) was higher than body temperature (36.5 ±...
Significant changes in brain temperature over time scales of ~1 hour were observed. High short-term repeatability suggests temperature changes appear to be due to physiology rather than measurement er...
2 TECHNICAL EFFICACY: Stage 1....
The development of new analytical methods can save resources, time and costs if there are prediction tools like computer simulation which support the optimization process. In GC the distribution-centr...
When the ambient temperature, in which a person is situated, fluctuates, the body's surface temperature will alter proportionally. However, the body's core temperature will remain relatively steady. C...
Plan an experiment to measure temperature over a thousand times in order to get the corresponding data for human forehead, axillary, and oral temperatures at varying ambient temperatures (14-32 °C). U...
A total of 1080 tests measuring body temperature were conducted on healthy adults. The average axillary temperature was (36.7 ± 0.41) °C, the average oral temperature was (36.7 ± 0.33) °C, and the ave...
The changes in ambient temperature have a substantial impact on the temperature of the forehead. There are significant differences between the forehead and axillary temperatures, as well as the forehe...
Flexible temperature sensors with high resolution and good reliability under deformation are a major research focus for wearable electronic devices for skin temperature monitoring. In this study, a fi...
The inverse association between ambient temperature and blood pressure (BP) has been investigated in the context of excess cardiovascular mortality in winter. However, the role of skin temperature (ST...
We conducted a longitudinal analysis using repeated measurements of ambulatory BP and ST for 48 hours (30 711 daytime readings and 17 382 nighttime readings) among 584 older adults between October and...
Distal and proximal STs were significantly associated with systolic BP during the daytime (regression coefficients: -4.27 mm Hg [95% CI, -4.58 to -3.96] and -2.74 mm Hg [95% CI, -3.14 to -2.56] per SD...
ST, especially in distal regions, was inversely associated with ambulatory BP. Our results have the potential for application to interventional studies targeting ST regulation to reduce excess cardiov...
Neonatal encephalopathy is a clinical condition of altered neurological function in the first days of life. Targeted temperature management (TTM) is a validated approach to mitigate neurologic sequela...
A female newborn was born at 39 weeks' gestational age plus 4 days. At delivery, the newborn was in cardiorespiratory arrest....
After performing cardiopulmonary resuscitation and neurological examination, a hypoxic-ischemic encephalopathy was diagnosed....
After about 2 hours from birth, the newborn underwent TTM....
A total of 4642 measurements of rectal temperature and 4520 measurements of bladder temperature were collected. Agreement between the 2 sites was statistically significant with a mean difference of 0....
Bladder temperature seems to have a good reliability and not to be inferior to the other assessment site currently used. Using bladder catheter with temperature sensor could reduce the number of devic...
Despite their relatively high thermal optima (T...
Loop-mediated isothermal amplification (LAMP) is one of the most widely used isothermal amplification technologies in molecular diagnostics. However, LAMP operates at a high temperature of 65 °C; thus...
For the first time, the use of stannate-based sorbents was investigated as high temperature CO...