Titre : Feuilles de plante

Feuilles de plante : Questions médicales fréquentes

Termes MeSH sélectionnés :

Trichoderma
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"https://questionsmedicales.fr/mesh/D018515?mesh_terms=Trichoderma&page=34#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Feuilles de plante", "description": "Quels facteurs augmentent le risque de maladies foliaires ?\nComment le climat influence-t-il la santé des feuilles ?\nQuel rôle joue le sol dans la santé des feuilles ?\nComment les pratiques agricoles affectent-elles les feuilles ?\nQuels sont les risques liés à la monoculture ?", "url": "https://questionsmedicales.fr/mesh/D018515?mesh_terms=Trichoderma&page=34#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer une maladie des feuilles ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "L'examen visuel et l'analyse des symptômes permettent d'identifier les maladies foliaires." } }, { "@type": "Question", "name": "Quels tests peuvent être effectués sur les feuilles ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des tests de laboratoire comme l'analyse microscopique et la culture fongique peuvent être réalisés." } }, { "@type": "Question", "name": "Quels signes indiquent une carence nutritionnelle ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Des feuilles jaunies ou décolorées peuvent signaler une carence en nutriments essentiels." } }, { "@type": "Question", "name": "Comment identifier les insectes sur les feuilles ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "L'observation des dommages et la présence d'insectes visibles aident à leur identification." } }, { "@type": "Question", "name": "Quelles maladies fongiques affectent les feuilles ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Des maladies comme l'oïdium et la rouille sont courantes sur les feuilles de certaines plantes." } }, { "@type": "Question", "name": "Quels symptômes indiquent une infection foliaire ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Des taches, des flétrissements ou des décolorations sur les feuilles signalent une infection." } }, { "@type": "Question", "name": "Comment reconnaître le flétrissement des feuilles ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Le flétrissement se manifeste par des feuilles molles et tombantes, souvent dues à un stress hydrique." } }, { "@type": "Question", "name": "Quels sont les signes d'une attaque d'insectes ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Des trous, des déformations ou des feuilles collantes peuvent indiquer une infestation d'insectes." } }, { "@type": "Question", "name": "Quelles décolorations sont préoccupantes ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Des décolorations brunes ou noires sur les feuilles peuvent signaler des maladies ou des brûlures." } }, { "@type": "Question", "name": "Quels symptômes indiquent un excès d'eau ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Des feuilles jaunies et tombantes peuvent indiquer un excès d'eau et un risque de pourriture des racines." } }, { "@type": "Question", "name": "Comment prévenir les maladies des feuilles ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Maintenir une bonne circulation d'air et éviter l'humidité excessive aide à prévenir les maladies." } }, { "@type": "Question", "name": "Quelles pratiques culturales aident les feuilles ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "La rotation des cultures et l'utilisation de compost améliorent la santé des feuilles et des plantes." } }, { "@type": "Question", "name": "Comment choisir des variétés résistantes ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Sélectionner des variétés de plantes adaptées à votre climat et résistantes aux maladies est crucial." } }, { "@type": "Question", "name": "Quel rôle joue l'arrosage dans la prévention ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Un arrosage approprié, ni trop ni trop peu, est essentiel pour prévenir le stress hydrique des feuilles." } }, { "@type": "Question", "name": "Comment éviter les infestations d'insectes ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Utiliser des barrières physiques et surveiller régulièrement les plantes aide à prévenir les infestations." } }, { "@type": "Question", "name": "Comment traiter les maladies foliaires ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Utiliser des fongicides ou des traitements biologiques selon le type de maladie identifiée." } }, { "@type": "Question", "name": "Quels remèdes naturels existent pour les feuilles ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Des solutions comme le savon insecticide ou l'huile de neem peuvent aider à traiter les infestations." } }, { "@type": "Question", "name": "Comment améliorer la santé des feuilles ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Assurer un bon drainage, une fertilisation adéquate et un arrosage approprié favorise la santé foliaire." } }, { "@type": "Question", "name": "Quels traitements préventifs sont recommandés ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Des traitements préventifs incluent la rotation des cultures et l'utilisation de variétés résistantes." } }, { "@type": "Question", "name": "Comment gérer les infestations d'insectes ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "L'application de pesticides ciblés et l'introduction de prédateurs naturels peuvent contrôler les infestations." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec des feuilles malades ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des feuilles malades peuvent entraîner une réduction de la photosynthèse et affecter la croissance." } }, { "@type": "Question", "name": "Comment les maladies foliaires affectent-elles la récolte ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Les maladies foliaires peuvent réduire la qualité et le rendement des récoltes, impactant l'agriculture." } }, { "@type": "Question", "name": "Quels risques sont associés aux traitements chimiques ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Les traitements chimiques peuvent causer des résistances chez les pathogènes et affecter l'écosystème." } }, { "@type": "Question", "name": "Comment les infestations d'insectes compliquent-elles la culture ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Les infestations d'insectes peuvent causer des dommages importants, rendant la culture difficile." } }, { "@type": "Question", "name": "Quelles sont les conséquences d'un excès d'eau ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Un excès d'eau peut entraîner la pourriture des racines et des maladies fongiques sur les feuilles." } }, { "@type": "Question", "name": "Quels facteurs augmentent le risque de maladies foliaires ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "L'humidité élevée, le manque de circulation d'air et la surpopulation de plantes augmentent les risques." } }, { "@type": "Question", "name": "Comment le climat influence-t-il la santé des feuilles ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Des conditions climatiques extrêmes, comme la chaleur ou le gel, peuvent affecter la santé foliaire." } }, { "@type": "Question", "name": "Quel rôle joue le sol dans la santé des feuilles ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Un sol pauvre en nutriments ou mal drainé peut nuire à la santé des feuilles et des plantes." } }, { "@type": "Question", "name": "Comment les pratiques agricoles affectent-elles les feuilles ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Des pratiques agricoles inappropriées, comme l'utilisation excessive de pesticides, peuvent nuire aux feuilles." } }, { "@type": "Question", "name": "Quels sont les risques liés à la monoculture ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "La monoculture peut augmenter la vulnérabilité aux maladies et aux infestations d'insectes sur les feuilles." } } ] } ] }

Sources (347 au total)

Evaluation of Sclerotinia sclerotiorum MTCC 8785 as a biological agent for the synthesis of silver nanoparticles and assessment of their antifungal potential against Trichoderma harzianum MTCC 801.

Owing to loads of industrial development and advancements, there is an unmet need for green-ecosystem support as well as safe technologies. For cost-cutting and eco-friendly applications, biosynthetic... In the present research work, silver nanoparticles (AgNPs) from fungus (mycogenic) were extracellularly synthesized with cell-free filtrates of fungal phytopathogen Sclerotinia sclerotiorum MTCC 8785 ... Primarily, the process of biosynthesis was inferred by the characteristic change of color and spectral peak at 420 nm recorded with UV spectrophotometer further approved the nano silver production in ... This is the first investigatory concern where nano-silver from fungal phytopathogen S. sclerotiorum MTCC 8785 has been prospected as new age antifungal alternatives against evolving threats from T. ha...

Systematic induced resistance in Solanum lycopersicum (L.) against vascular wilt pathogen (Fusarium oxysporum f. sp. lycopersici) by Citrullus colocynthis and Trichoderma viride.

The antifungal effects of Citrullus colocynthis extract (Hexane, chloroform, methanol, and water) were tested in vitro on Fusarium oxysporum f. sp. lycopersici (Sacc.) W. C. Snyder & H. N. Hans (FOL),...

Transcriptomic characterization of Trichoderma harzianum T34 primed tomato plants: assessment of biocontrol agent induced host specific gene expression and plant growth promotion.

In this study, we investigated the intricate interplay between Trichoderma and the tomato genome, focusing on the transcriptional and metabolic changes triggered during the late colonization event. Mi...

Wheat rhizosphere dynamics of Trichoderma gamsii A5MH and suppression of a Pythium root rot-Fusarium crown rot disease complex over two consecutive cropping seasons.

Determine the wheat rhizosphere competence of Trichoderma gamsii strain A5MH and in planta suppression of the Pythium root and Fusarium crown rot pathogens Globisporangium irregulare and Fusarium pseu... Wheat was continuously cropped (eight years) at a minimum tillage, low growing season rainfall (GSR ≤ 170 mm) site shown as highly conducive to Pythium root and Fusarium crown rots. Root isolation fre... Further trials are required to determine if the A5MH-induced pathogen suppression translates to yield improvements in higher rainfall regions where non-cereal rotations reduce crown rot inoculum....

Dual RNA sequencing during Trichoderma harzianum-Phytophthora capsici interaction reveals multiple biological processes involved in the inhibition and highlights the cell wall as a potential target.

Phytophthora capsici is a destructive oomycete pathogen, causing huge economic losses for agricultural production. The genus Trichoderma represents one of the most extensively researched categories of... T. harzianum T-22 significantly inhibited the growth of P. capsici mycelia and the culture filtrate of T-22 induced lysis of P. capsici zoospores. Electron microscopic analyses indicated that T-22 sig... These findings provided enhanced insights into the biocontrol mechanisms against P. capsici with T. harzianum and evidenced compatibility between specific biological and chemical control strategies. ©...

Optimization, purification and characterization of laccase from a new endophytic Trichoderma harzianum AUMC14897 isolated from Opuntia ficus-indica and its applications in dye decolorization and wastewater treatment.

Hazardous synthetic dye wastes have become a growing threat to the environment and public health. Fungal enzymes are eco-friendly, compatible and cost-effective approach for diversity of applications.... A new fungal endophyte capable of laccase-producing was firstly isolated from cladodes of Opuntia ficus-indica and identified as T. harzianum AUMC14897 using ITS-rRNA sequencing analysis. Furthermore,... Subsequently, the new endophytic strain produces high laccase activity that possesses a unique characteristic, it could be an appealing candidate for both environmental and industrial applications....