Literatura científica selecionada sobre o tema "Stress hydrique végétal"
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Artigos de revistas sobre o assunto "Stress hydrique végétal"
Kagambèga, François Wenemi, Rasmata Nana, Philippe Bayen, Adjima Thiombiano e Joseph Issaka Boussim. "Tolérance au déficit hydrique de cinq espèces prioritaires pour le reboisement au Burkina Faso". BASE, n.º 4 (2019): 245–56. http://dx.doi.org/10.25518/1780-4507.18199.
Texto completo da fonteObed, Gogoue Dessan, N’Guessan Assiénin Hauverset, Niamchkechi Jule Leonce, Adou Bini Christophe e Sekou Diabate. "Effet de la nature du substrat sur le développement des plants de palmier à huile C1001F (Elaeis Guineensis Jacq.) en condition de stress hydrique". European Scientific Journal, ESJ 19, n.º 24 (31 de agosto de 2023): 262. http://dx.doi.org/10.19044/esj.2023.v19n24p262.
Texto completo da fonteTOUMI, Mohamed, Selma BARRIS, Souhila BERKA e Fatiha AID. "Effets du stress hydrique sur la physiologie et la morphologie de plants du robinier, Robinia pseudoacacia, d’Algérie". BOIS & FORETS DES TROPIQUES 354 (1 de dezembro de 2022): 7–17. http://dx.doi.org/10.19182/bft2022.354.a36854.
Texto completo da fonteConedera, Marco, Nicola Bomio-Pacciorini, Pietro Bomio-Pacciorini, Stéphane Sciacca, Lindo Grandi, Amadou Boureïma e Anna Maria Vettraino. "Reconstitution des écosystèmes dégradés sahéliens". BOIS & FORETS DES TROPIQUES 304, n.º 304 (1 de junho de 2010): 61. http://dx.doi.org/10.19182/bft2010.304.a20448.
Texto completo da fonteBrou, Yao Télesphore. "Modification du régime des précipitations et risque de stress hydrique des formations végétales en zone de forêt dense humide ivoirienne". Cahiers Nantais 51, n.º 1 (1999): 105–15. http://dx.doi.org/10.3406/canan.1999.1246.
Texto completo da fonteMUSSARD, Hugo, e Patrice CANNAVO. "Les indicateurs de stress hydrique des végétaux et leur applicabilité en irrigation de précision". Bioprocédés et bioproductions, novembro de 2023. http://dx.doi.org/10.51257/a-v1-bio2490.
Texto completo da fonteHECKENROTH, Alma, Isabelle LAFFONT-SCHWOB, Teddy BAUMBERGER, Pascale PRUDENT, Lidwine LE MIRE-PECHEUX, Laureen KELLER, Alex BAUMEL et al. "Comment allier stabilisation des sols contaminés et préservation d’Astragalus tragacantha L. sur le littoral remarquable du Parc national des Calanques ?" Naturae, n.º 3 (9 de fevereiro de 2022). http://dx.doi.org/10.5852/naturae2022a3.
Texto completo da fonteTeses / dissertações sobre o assunto "Stress hydrique végétal"
Koch, Garance. "Effet du stress hydrique sur la croissance de la tomate : une étude multi-échelle : de la cellule à la plante entière pour une meilleure compréhension des interactions entre les différentes échelles". Thesis, Avignon, 2018. http://www.theses.fr/2018AVIG0347.
Texto completo da fonteAs for other multicellular organs, growth and development of leaves and fruits arecharacterized by cell division and expansion. Cell division and expansion are two maingrowth processes. Fleshy fruit pericarp cells also include successive endocycles that providean important increase in cell ploidy. There is a clear link between cell growth andendoreduplication. However, this link is still unclear from a functional point of view. Cellularprocesses interact during organ development and are related to plant water and carbon flows.The objective of this thesis is to give insights into the multi-scale control of leaves and fruitsgrowth in tomato (Solanum lycopersicum Mill.) and the plasticity of growth-related traits inresponse to soil water stresses.This study mainly focused on cherry tomato Solanum lycopersicum, cv. West Virginia 106(WVa 106). This genotype was cultivated in different conditions of watering regimes withautomated systems developed for this study. Soil water deficit response was studied atdifferent observation scales (tissue, organ, whole plant) and at different plant growth stagesthanks to protocols that were used until now on plants with determinate growth and simpleleaves that were modified for this study. Two transgenic genotypes modified on a cell cycleregulation gene were also cultivated to create variations on growth related traits for a betterunderstanding of their relationships. Multi-scale growth kinetics of source and sink organs(leaf and fruit) were also analyzed. Results have brought new elements about growth-relatedtraits coordination and have reinforced a few hypotheses already presented in scientificpapers. This work has supplied an original dataset on water stress effects on cellular processes(division, expansion, endoreduplication) related to leaf and fruit growth in tomato in thecontext of the plant as a whole. In perspectives, this dataset may allow to further develop anexisting model of fleshy fruit development which was first developed for fruits of plantsgrowing optimal condition. Genericity of this model will be tested on another organ, the leaf.This work also opens some tracks about how the model could be modified when growth islimited by water stress
Hjeij, Maroun. "Imagerie hyperspectrale active dans l'infrarouge moyen "application agrophotonique". Electronic Thesis or Diss., Université de Rennes (2023-....), 2024. https://ged.univ-rennes1.fr/nuxeo/site/esupversions/cdff6e07-14e9-46bd-bdb3-3c9196819dc4.
Texto completo da fonteThis thesis focuses on the design of the architecture of an active hyperspectral imaging system in the mid-infrared, with an emphasis on the early and accurate measurement of water stress in plants. Despite the high potential of this technology in agriculture, its use remains limited due to the cost of equipment. The study aims to improve the technological and scientific understanding of active hyperspectral imaging by evaluating the impact of speckle on images and proposing digital and optical solutions. The integration of a rotating diffuser has reduced speckle, while lighting enhancements have preserved image resolution. The study revealed that the active laser source induces distortions related to beam displacement during changes in wavelength, with power fluctuations reaching approximately 20%. These challenges were overcome using calibrated motorized mirrors and a reference ring, reducing power fluctuations to 2.8% through a compensation algorithm. In conclusion, the experimental setup characterizes plant samples in terms of water stress, enabling early detection from the fourth day, with potential applications in various fields for material characterization in an observed scene
Lamy, Geneviève. "Etude du rôle des inhibiteurs de kinases-cycline-dépendantes (CKI) de la classe des SIM/SMR en réponse au stress abiotique chez Arabidopsis thaliana". Phd thesis, Université de Strasbourg, 2013. http://tel.archives-ouvertes.fr/tel-00919383.
Texto completo da fonteChabi, Malika. "Approches transcriptomique et protéomique pour étudier les rôles de l’environnement et du génotype sur le métabolisme pariétal chez le lin". Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10206/document.
Texto completo da fonteFlax (Linum usitatissimum L.) is grown for its cellulose-rich bast fibers used in the textile industry and for reinforcing composite materials. Fiber “quality” depends partly on the structure of the cell wall and we have therefore tried to obtain a better understanding of the different factors that can influence the structure of flax cell walls. We firstly confirmed the use of a new Nimblegen microarray changing from a system based on short (25-mer) oligonucleotides to a system based on long oligonucleotides (60 mers). A proteomics approach was then used and allowed us to identify 1,242 non-redundant proteins of which 410 could be related to cell wall metabolism. In parallel we demonstrated the presence of xyloglucan hemicelluloses in flax fiber cell walls and identified an important paralogy in the IIIA XTH (xyloglucan endo-transglycosylase/hydrolase) family potentially implicated in the formation/structuration of the flax fiber cell wall. Then a transcriptomic and proteomic comparison between different field-grown flax varieties (spring fiber, winter fiber, winter oil) over 2 consecutive years allowed us to identify 659 differentially-expressed genes (DEGs) at the variety level, and 1,571 genes at the environmental level. A non-negligible number of these genes is involved in cell wall metabolism thereby providing some initial clues allowing a link to be made between variety and quality. This study also underlined the potential importance of the XTH protein in flax cell wall metabolism. The role of the environment on cell wall metabolism was further explored in a study aiming to dissect the impact of drought stress on the transcriptomes of 3 vegetative organs (stem, leaf, root). Preliminary analyses identified an important number of DEGs involved in the biosynthesis and remodeling of several cell wall polymers
Morillon, Raphaël. "Modifications de perméabilité cellulaire à l'eau liées au développement, au stress hydrique, et aux mutations". Rouen, 1999. http://www.theses.fr/1999ROUES032.
Texto completo da fonteTisné, Sébastien. "Bases écophysiologiques et génétiques de la plasticité de la croissance foliaire en réponse à une contrainte hydrique édaphique chez Arabidopsis thaliana". Montpellier SupAgro, 2009. http://www.theses.fr/2009NSAM0033.
Texto completo da fonteAl, Abras Kamal. "La crise de transplantation chez l'épicéa commun : Analyse du comportement des mycorhizes". Nancy 1, 1988. http://www.theses.fr/1988NAN10325.
Texto completo da fonteMentewab, Ayalew. "Androgénèse in vitro chez le blé : utilisation pour la transformation génétique et l'amélioration de la résistance au stress hydrique". Toulouse, INPT, 1998. http://www.theses.fr/1998INPT001A.
Texto completo da fontePerfus-Barbeoch, Laetitia. "Identification et régulation de transporteurs membranaires d'Arabidopsis thaliana impliqués dans la réponse aux stress métallique et hydrique". Aix-Marseille 2, 2002. http://www.theses.fr/2002AIX22057.
Texto completo da fonteQuéro, Anthony. "Approche métabolomique de l'amélioration de la tolérance au stress hydrique chez le lin (Linum usitatissimum) par application de l'acide β-amino butyrique (BABA) ou d'oligosaccharides". Amiens, 2012. http://www.theses.fr/2012AMIE0118.
Texto completo da fonteThe cultivation of linseed (Linum usitatissimum), fell into disuse in the last century, is gaining interest through the abundance in seeds of compounds as α-linolenic acid and lignans. Despite its benefits, linseed is often considered as unprofitable particularly due to its regular exposure to drought which disrupts yield. To assess plant plasticity during osmotic stress, changes in metabolome and in inorganic solutes content were evaluated. Content analysis of these two classes of solutes has highlighted an opposite behavior during osmotic stress. Thus, metabolites accumulation is associated with a decreased in inorganic solutes content. The application of β-amino butyric acid (BABA) has led to an improved linseed drought stress tolerance. This tolerance is associated with a higher water content in leaves of treated plants, with a major solute content reorganization and an osmotic potential decrease. We showed that solute content deviations in response to anionic oligosaccharides application were similar that observed in linseed submitted to oligosaccharides or BABA treatments. These preliminary results suggest a role of oligosaccharides in improving of linseed drought stress tolerance