Academic literature on the topic 'Pollen – Effets de l'ozone'
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Journal articles on the topic "Pollen – Effets de l'ozone":
Savary, B., R. Levilly, A. Laplanche, D. Wolbert, and M. Lemasle. "Formation des ions bromate dans une colonne à bulles: Effets du peroxyde d'hydrogène lors de l'ozonation." Revue des sciences de l'eau 13, no. 2 (April 12, 2005): 139–54. http://dx.doi.org/10.7202/705386ar.
Sens, M. L., N. Le Sauze, A. Laplanche, and B. Langlais. "Effets des anions minéraux sur la décomposition de l'ozone dans l'eau." Revue des sciences de l'eau 3, no. 3 (April 12, 2005): 325–41. http://dx.doi.org/10.7202/705078ar.
Peltre, Gabriel. "Lee allergènes du pollen de Graminées. Effets de l'environnement sur l'allergénicité." Bulletin de la Société Botanique de France. Actualités Botaniques 137, no. 2 (January 1990): 119–20. http://dx.doi.org/10.1080/01811789.1990.10827008.
Babou Frédéric, BAZIE, and DAO Madjelia Cangré Ebou. "Effets des visites des insectes sur la fructification de Moringa oleifera Lam. au Burkina Faso." Journal of Applied Biosciences 181 (January 31, 2023): 18974–84. http://dx.doi.org/10.35759/jabs.181.8.
Langlais, C., F. Deniel, D. Wolbert, Y. Tirilly, and A. Laplanche. "Étude du traitement et du recyclage des eaux issues des serres horticoles." Revue des sciences de l'eau 13, no. 1 (April 12, 2005): 5–20. http://dx.doi.org/10.7202/705377ar.
Pargney, Jean-Claude. "Effets d'une plasmolyse prolongée sur les tubes polliniques angiospermiens en culture in vitro : étude ultrastructurale." Canadian Journal of Botany 66, no. 1 (January 1, 1988): 108–15. http://dx.doi.org/10.1139/b88-016.
Garrec, Jean-Pierre, and Catherine Kerfourn. "Effets des pluies acides et de l'ozone sur la permeabilite a l'eau et aux ions de cuticules isolees. Implication dans le phenomene de deperissement des forets." Environmental and Experimental Botany 29, no. 2 (April 1989): 215–28. http://dx.doi.org/10.1016/0098-8472(89)90053-1.
Abadie, Michel, and Edith Bury. "Investigations cytochimiques, marquage immunocytochimique et effets destructeurs des U. V. sur le pollen deDactylis glomerata L." Grana 30, no. 2 (January 1991): 515–24. http://dx.doi.org/10.1080/00173139109432020.
Bignon, Jean, Denis Zmirou, and Patrick Brochard. "Effets respiratoires de l'ozone chez l'homme." Pollution atmosphérique, N°141 (1994). http://dx.doi.org/10.4267/pollution-atmospherique.4082.
Hosselet, Jean-Jacques, and Jean Bignon. "Effets de l'ozone troposphérique sur l'appareil respiratoire chez l'homme." Pollution atmosphérique, N°142 (1994). http://dx.doi.org/10.4267/pollution-atmospherique.4131.
Dissertations / Theses on the topic "Pollen – Effets de l'ozone":
Hamzé, Mona. "Vers une meilleure connaissance de l'exposition aux grains de pollens allergisants et de leur altération par la pollution de l'air." Electronic Thesis or Diss., Université de Lille (2022-....), 2022. https://pepite-depot.univ-lille.fr/ToutIDP/EDSMRE/2022/2022ULILR009.pdf.
Although it is now accepted that allergenic pollen grains are altered by air pollution, the role of these alterations on allergy is not yet clearly known. The (bio)chemical mechanisms involved are not completely elucidated, especially with regard to the exacerbation of symptoms by air pollution. The main objective of this thesis is to improve the knowledge on the exposure to allergenic pollen grains by taking into account their degree of alteration: pollution and pollen grain rupture. A first laboratory study was carried out in order to explore the potential of several techniques for the characterization of the degree of alteration of the pollen grain. Pollen artificially polluted with ozone was analyzed by spectroscopic (Raman and infrared), microscopic and chromatographic techniques. Ozone uptake was also measured on a set of 22 pollen taxa with different bio-physical-chemical characteristics (grain size and mass, degree of allergenicity, lipid fraction...) to investigate possible determinants of ozone uptake. The potential of pollen analysis by gas chromatography-mass spectrometry (GC-MS) was exploited and a new method of counting pollen grains was developed. This method required a study on the variability of the lipid fraction on different batches of birch pollen from different geographical origins and depending on the year of harvest. In order to test this counting method in real conditions, a sampling campaign was carried out on sedimented birch pollen in indoor and outdoor environments. The determination of chemical tracers of pollen grains by GC-MS has a great potential for the rapid counting of pollen grains, the determination of their state (broken or intact) and their degree of pollution
Perié, Karine. "Interaction de l'ozone avec des complexes de type porphyrinique : Leur intérêt dans la catalyse des réactions d'ozonation." Dijon, 1996. http://www.theses.fr/1996DIJOS058.
Ramarotafika, Rivo. "Protection et dégradation des sucres et de leurs dérivés par l'ozone." Lyon 1, 1994. http://www.theses.fr/1994LYO10250.
Guyon, Frédérique. "Contribution à l'étude de la solidité à l'ozone de colorants anthraquinoniques acides." Mulhouse, 1998. http://www.theses.fr/1998MULH0521.
Leitao, Louis. "Impact de l'ozone sur la photosynthèse : effets sur les carboxylases (PEPc et Rubisco) des plantes en C3 et en C4." Pau, 2005. http://www.theses.fr/2005PAUU3016.
In order to study chronic and realistic ozone stress on C3 and C4 plant carboxylating enzymes, effects of increasing ozone concentrations on PEPc (phosphoenolpyruvate carboxylase) and Rubisco (ribulose-1,5-bisphosphate carboxylase/oxygenase) enzymes have been determined and compared in bean (C3) and maize (C4) plants. We intended to seek possible correlations between carboxylases ' activity, quantity and quality, and connect them to pigment contents which can describe foliar senescence state. Using an open top chamber technology, it has been determined that, according to pollutant concentration and dynamic of exposure, ozone can modify bean and maize carboxylases' activity and quantity, as well as pigment contents. These modifications could be associated with foliar symptoms and/or plant biomass reductions. On bean, ozone could stimulate PEPc anaplerotic isoform activity whereas it could reduce Rubisco's one. Rubisco activity decrease had been associated with the formation of Rubisco small subunits carbonyls and with a decrease of native Rubisco's amount. In maize plants, moderate ozone concentrations have been shown to stimulate PEPc and Rubisco activities and contents whereas these same criteria were reduced by higher ozone concentrations. Real-time RT-PCR analyses revealed that only some of these variations can be explained at transcriptional level
Deborde, Marie. "Oxydation par le chlore et l'ozone de composés organiques à effets modulateurs endocriniens." Poitiers, 2006. http://www.theses.fr/2006POIT2254.
The objective of this work was to improve the present knowledge about fate of endocrine disruptors during water treatment process. Chlorination and ozonation (two disinfection steps frequently applied) of seven endocrine disruptors (17β-estradiol, estriol, estrone, 17α-ethinylestradiol, 4-n-nonylphenol et bisphenol A) were then studied. In a first time, a kinetic study was performed at 20 ± 2 °C and different pH levels. Under these conditions, all molecules with a phenolic group in their structure (17β-estradiol, estriol, estrone, 17α-ethinylestradiol, 4-n-nonylphenol et bisphenol A) were removed more or less rapidly as function of pH, irrespective of the studied oxidant. Elementary oxidation reactions and associated rate constants were then determined. Concerning progesterone (devoid of phenolic ring), no removal in presence of chlorine was shown. However, a possible oxidation by ozone was observed. In a second time, by-products ozonation of two studied endocrine disruptors (bisphenol A, progesterone) were studied. Numerous by-products were identified by chromatographic analyses (HPLC/UV, HPLC/MS, HPLC/MS/MS, GC/MS). Stability by-products in presence of ozone was then studied and reactional pathways were suggested
Bohler, Sacha. "Les effets de l'ozone sur les processus foliaires du peuplier : une approche protéomique." Thesis, Nancy 1, 2010. http://www.theses.fr/2010NAN10140/document.
After the industrial revolution of the 1700s and 1800s, and the subsequent industrialization, many pollutants have accumulated in the atmosphere, mainly due to the use of coal and fossil fuels. Besides the primary pollutants such as nitrogen oxides and sulfur oxides, secondary oxides such as ozone started to accumulate. Nowadays, ozone is the third gas involved in global climate change, but is also a major health risk for humans, and induces considerable damage to vegetation. Starting in the 50s, ozone research was based on targeted studies. Nowadays, with the advent of global techniques such as transcriptomics and proteomics, new results can be produced in an unbiased way. In the thesis presented here, a proteomic study of the effects of ozone on poplar leaf processes was carried out. With the help of this technique, complemented with biochemical and physiological approaches and with morphological observations, it was possible to confirm previous results, but also to elaborate new hypotheses concerning the effects of ozone on poplar leaf metabolism. In parallel, studying the stress also allowed to clarify some of the changes that occur in metabolism during leaf development, under stress conditions and under control conditions. In this document, the procedures, results and conclusions obtained during this study are presented in detail
Cuny, Florence. "Processus d'induction d'embryons haploïdes par du pollen irradié chez le melon (cucumis melo l. ) : réponses du pollen à l'irradiation gamma." Avignon, 1992. http://www.theses.fr/1992AVIG0301.
Laval-Gilly, Philippe. "Analyse de la mobilité des macrophages pour le développement d'un biocapteur atmosphérique." Metz, 2000. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/2000/Laval_Gilly.SMZ0052.pdf.
Roumeau, Stéphane. "Les réactions hétérogènes dans la troposphère tropicale : effets des aérosols carbonés et des cirrus sur l'ozone." La Réunion, 2001. http://elgebar.univ-reunion.fr/login?url=http://thesesenligne.univ.run/01_21_Roumeau.pdf.
Books on the topic "Pollen – Effets de l'ozone":
Rowan, Cass Glen, ed. Protection of works of art from atmospheric ozone. Marina del Rey, Calif., USA: Getty Conservation Institute, 1989.