Academic literature on the topic 'Phenylurea'

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Journal articles on the topic "Phenylurea"

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Reynolds, John F. "Summary and Future Direction: Chemical Regulation in Tissue Culture." HortScience 22, no. 6 (1987): 1206–7. http://dx.doi.org/10.21273/hortsci.22.6.1206.

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Abstract This series of papers has expanded upon Skoog's milestone discovery regarding the roles of cytokinins and auxins in morphogenesis of in vitro systems. One of the effects of adenine-based cytokinins in culture systems is the formation of adventitious shoots or the expression of axillary shoots. This symposium reported that a cytokinin response also can be observed by using phenylurea-based cytokinins. Two phenylurea compounds, thidiazuron and 4PU–CI, were illustrated as having strong cytokinin activity, equivalent to or surpassing the adenine-based compounds. One of the effects of thes
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Sepp, Krisztián, Zsolt Molnár, Anna M. László, et al. "Study of the Potential Endocrine-Disrupting Effects of Phenylurea Compounds on Neurohypophysis Cells In Vitro." International Journal of Endocrinology 2019 (February 10, 2019): 1–9. http://dx.doi.org/10.1155/2019/1546131.

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Homeostatic disruptor agents, and endocrine disruptor compounds (EDC) specifically, can originate from agricultural and industrial chemicals. If they modify the adaptation of living organisms as direct (e.g., by altering hormone regulation, membrane functions) and/or indirect (e.g., cell transformation mechanisms) factors, they are classified as EDC. We aimed to examine the potential endocrine-disrupting effects of phenylurea herbicides (phenuron, monuron, and diuron) on the oxytocin (OT) and arginine-vasopressin (AVP) release of neurohypophysis cell cultures (NH). In our experiments, monoamin
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Torrens, Francisco, and Gloria Castellano. "Molecular Clustering of Phenylurea Herbicides: Comparison with Sulphonylureas, Pesticides and Persistent Organic Pollutants." Evolving Trends in Engineering and Technology 1 (August 2014): 29–52. http://dx.doi.org/10.18052/www.scipress.com/etet.1.29.

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Chromatographic retention times of phenylurea herbicides are modelled by structure–property relationships. Properties are hydration free energy and dipole. Bioplastic evolution is an evolutionary perspective conjugating the effect of acquired characters and relations that emerge among evolutionary indeterminacy, morphological determination and natural selection principles. Classification algorithms are proposed based on information entropy and production. Phenylureas are classified by Cl2, O2 and N2 presence; their different behaviour depends on the number of Cl atoms. When applying procedures
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Torrens, Francisco, and Gloria Castellano. "Molecular Clustering of Phenylurea Herbicides: Comparison with Sulphonylureas, Pesticides and Persistent Organic Pollutants." International Journal of Engineering and Technologies 1 (August 4, 2014): 29–52. http://dx.doi.org/10.56431/p-391yt8.

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Chromatographic retention times of phenylurea herbicides are modelled by structure–property relationships. Properties are hydration free energy and dipole. Bioplastic evolution is an evolutionary perspective conjugating the effect of acquired characters and relations that emerge among evolutionary indeterminacy, morphological determination and natural selection principles. Classification algorithms are proposed based on information entropy and production. Phenylureas are classified by Cl2, O2 and N2 presence; their different behaviour depends on the number of Cl atoms. When applying procedures
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Verma, Shweta, Riaz Hashim, and Neha Krishnarth. "Synthesis of Phenylurea Derivatives & Their Evaluation as Antihyperglycaemic Agents." Indo Global Journal of Pharmaceutical Sciences 03, no. 01 (2013): 33–39. http://dx.doi.org/10.35652/igjps.2013.05.

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Literature survey reveals that in past few decades, some urea derivatives have been synthesized for the management of DM among which sulphonylurea have been gaining considerable recognition in the management of DM worldwide. In the present study N-phenyl-.N-(substituted) phenoxy acetyl ureas were synthesized using three- step reaction pathway. A new series of phenylurea's were prepared by treating phenylurea with chloroacetyl chloride to form the product which on further treatment with various substituted phenols gave the final product. All synthesized compounds were characterized on the basis
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Ali, R. M., and H. M. Abbas. "Response of salt stressed barley seedlings to phenylurea." Plant, Soil and Environment 49, No. 4 (2011): 158–62. http://dx.doi.org/10.17221/4107-pse.

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The effect of phenylurea with reported cytokinin-like activities on seed germination, seedling growth, activities of antioxidant enzymes, polyphenol, peroxidase, indoleacetic acid oxidase, and total phenolic compounds, flavonoids was investigated in stressed barley seedlings. The application of phenylurea decreases the activity of peroxidase, indoleacetic acid oxidase and increases the activity of polyphenol oxidase with decrease in total phenolic compounds and flavonoids and consequent increase in growth rate. Saline (NaCl) stress in barley seedlings causes an increase in total phenolic compo
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Bott, Raymond C., Graham Smith, Urs D. Wermuth, and Nathan C. Dwyer. "Molecular Cocrystals of Aromatic Carboxylic Acids with Unsymmetrically Substituted Ureas. The Structures of Phenylurea and the 1 : 1 Adducts of Phenylurea with a Series of Nitro-Substituted Acids." Australian Journal of Chemistry 53, no. 9 (2000): 767. http://dx.doi.org/10.1071/ch00099.

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The crystal structure of phenylurea (1), [(C7H8N2O)], has been determined and revealed a simple cyclic dimer involving hydrogen bonding between the two nitrogen atoms of one molecule and the oxygen atom of a second molecule. The system is completed by a hydrogen bond between the non-substituted nitrogen atom of a third molecule and the oxygen atom of the second molecule to form a chain polymer. The 1 : 1 molecular adducts of phenylurea with 2-nitrobenzoic acid, [(C7H5NO4)(C7H8N2O)] (2), 3-nitrobenzoic acid, [(C7H5NO4)(C7H8N2O)] (3), 3,5-dinitrobenzoic acid, [(C7H4N2O6)(C7H8N2O)] (4), 2,4,6-tri
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Okuniewski, Andrzej, Jaroslaw Chojnacki, and Barbara Becker. "N-Benzoyl-N′-phenylurea." Acta Crystallographica Section E Structure Reports Online 66, no. 2 (2010): o414. http://dx.doi.org/10.1107/s1600536810001807.

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Bers, Karolien, Baptiste Leroy, Philip Breugelmans, et al. "A Novel Hydrolase Identified by Genomic-Proteomic Analysis of Phenylurea Herbicide Mineralization by Variovorax sp. Strain SRS16." Applied and Environmental Microbiology 77, no. 24 (2011): 8754–64. http://dx.doi.org/10.1128/aem.06162-11.

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ABSTRACTThe soil bacterial isolateVariovoraxsp. strain SRS16 mineralizes the phenylurea herbicide linuron. The proposed pathway initiates with hydrolysis of linuron to 3,4-dichloroaniline (DCA) andN,O-dimethylhydroxylamine, followed by conversion of DCA to Krebs cycle intermediates. Differential proteomic analysis showed a linuron-dependent upregulation of several enzymes that fit into this pathway, including an amidase (LibA), a multicomponent chloroaniline dioxygenase, and enzymes associated with a modified chlorocatecholortho-cleavage pathway. Purified LibA is a monomeric linuron hydrolase
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Gordetsov, A. S., S. V. Zimina, N. V. Kulagina, E. M. Moseeva, Yu A. Kurskii, and M. A. Lopatin. "Reaction of Phenylurea and N-Trimethylsilyl-N'-phenylurea with Vanadocene and N-Bromosuccinimide." Russian Journal of General Chemistry 73, no. 10 (2003): 1557–60. http://dx.doi.org/10.1023/b:rugc.0000016022.68917.bd.

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Dissertations / Theses on the topic "Phenylurea"

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Marsh, David James. "Controlled release elastomer systems as cladding materials resistant to marine fouling." Thesis, University of Portsmouth, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238152.

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Smith, Vincent Joseph. "Complexation between cyclodextrins and phenylurea herbicides in solution and in the solid state." Doctoral thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/12151.

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Includes abstract.<br>Includes bibliographical references.<br>The author undertook the preparation of cyclodextrin inclusion complexes of four phenylurea herbicides (metobromuron, monolinuron, monuron and fenuron) using the kneading and co-precipitation methods in the solid state while also determining complex formation of the same phenylureas in solution with selected cyclodextrins. The kneading experiments were carried out first to determine whether the phenylureas would complex in the solid-state. The phenylureas were then subjected to complexation by means of co-precipitation under differe
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Calderon-Kawasaki, Kenichi E. "Synthesis of neutral anion receptor 5,10-bis-(2-(4-fluorophenyl)phenylurea)-15,20-diphenylporphyrin and its characterization." Diss., Click here for available full-text of this thesis, 2006. http://library.wichita.edu/digitallibrary/etd/2006/t047.pdf.

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Marshall, Christopher Scott. "The Use of Plant Growth Regulators to Improve the Traffic Tolerance and Repair of Overseeded Bermudagrass." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/34282.

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An active football season during the fall acclimation period tests the traffic tolerance of bermudagrass. Exogenous applications of synthetic cytokinins or cytokinin-enhancing plant growth regulators (PGRs), such as trinexapac-ethyl, may improve the traffic tolerance of "Patriot" and "Tifsport" hybrid berudagrasses (Cynodon dactylon var. dactylon x Cynodon transvaalensis). This study was designed to mimic the agronomic practices and traffic stresses experienced at Virginia Tech's Worsham Field. Starting in September 2005, treatments were applied with a differential-slip traffic simulator. Foll
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TIXIER, CELINE. "Photo- et biotransformation de trois herbicides de type phenyluree : structure, synthese et ecotoxicite des intermediaires, etudes sur le terrain." Clermont-Ferrand 2, 1999. http://www.theses.fr/1999CLF22159.

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Ce travail porte sur l'etude de la photo- et bio-transformation, en conditions controlees de laboratoire, de trois herbicides de type phenyluree (presentant des substitutions differentes sur le noyau aromatique) : diuron, chlorotoluron et isoproturon. La faible solubilite dans l'eau de ces herbicides leur confere en effet une grande remanence sur le sol, ou ils subissent alors l'action de la lumiere solaire et des micro-organismes. Les essais de phototransformation ont ete realises en milieu aqueux et apres dispersion sur du sable. La biodegradation a ete etudiee avec des micro-organismes comm
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GARMOUMA, MOURAD. "Transfert d'herbicides (triazine et phenylurees) et de produits de degradation dans le bassin versant de la marne." Paris 6, 1996. http://www.theses.fr/1996PA066564.

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Les niveaux de contamination des eaux en herbicides (triazines et phenylurees) a l'echelle d'un bassin versant draine a vocation agricole (le melarchez, en brie), et de la marne a son exutoire, ont ete etudie pour estimer des bilans de transfert entre compartiments (sol, atmosphere, riviere et nappe phreatique). Les herbicides etudies et deux de leurs produits de degradation (deethylatrazine et deisopropylatrazine), ont ete identifies par chromatographie en phase gazeuse et confirmes pour quelques echantillons par spectrometrie de masse. Douze mois apres le traitement agricole, les residus d'a
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DUPAS, STEPHANE. "Recherche des phenylurees et des triazines et de leurs produits de degradation dans les environnements fluviaux et marins cotiers." Paris 6, 1996. http://www.theses.fr/1996PA066125.

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En france, les herbicides representent environ un tiers de la totalite des pesticides utilises. Ils sont introduits directement dans l'environnement et sont susceptibles d'etre transportes jusqu'aux milieux aquatiques. En raison de leur utilisation en quantite importante, de leur mobilite et de leur persistance dans l'environnement, deux familles d'herbicides, les triazines et les phenylurees, ainsi que leurs produits de degradation apparaissent comme des composes preoccupants pour l'environnement. Il est donc necessaire de developper des methodes d'analyse multiresidus permettant le dosage de
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Auberlet, Delle-Vedove Agnès. "Synthèse et étude structurale de n-benzoyl-n'-phenylurees, insecticides, en vue d'établir une relation entre la structure, la rétention dans des adsorbants modèles et le mode de dégradation. Suivi de recherches sur l'enseignement expérimental de la formulation : étude d'une famille de tensioactifs." Angers, 1995. http://www.theses.fr/1995ANGE0002.

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Dans une première partie, cinq n-benzoyl-n'-phenylurees sont synthétisées, en vue de modéliser leurs interactions avec l’environnement : rétention dans les sols, dégradation. Ces molécules sont des insecticides rémanents agissant par inhibition de la biosynthèse de la chitine. L'analyse d'extraits d'adsorbants modèles traites avec ces molécules est effectuée par chromatographie liquide haute pression en phase inverse. L'étude structurale de ces molécules est réalisée par la combinaison de diverses techniques spectroscopiques : spectrométrie de masse, spectroscopie de rayons X, RMN du proton, d
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Chou, Tso-ying, and 周作穎. "Determination of phenylurea herbicides in aqueous samples using partitioned dispersive liquid-liquid microextraction." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/09924889492396655411.

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碩士<br>東吳大學<br>化學系<br>97<br>Partitioned dispersive liquid-liquid microextraction (PDLLME), using THF as the dispersive solvent and dichloromethane as the extraction solvent, was utilized to isolate and concentrate phenylurea herbicides (PUHs) from aqueous samples. In PDLLME, a dispersive solvent should be able to be partitioned in the organic extractant droplets to effectively extract the polar organic compounds from aqueous samples. The mixture of the water-immiscible extractant and the partitioned dispersive solvent was obtained by centrifugation, dried under low pressure, reconstituted in me
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Yang, Ya-Wen, and 楊雅雯. "Analysis of phenylurea in water by on-line solid phase extraction with LC analysis." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/80194115173768674765.

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Books on the topic "Phenylurea"

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Standing Committee of Analysts., ed. Phenylurea herbicides (urons): Dinocap, dinoseb, benomyl, carbendazim and metamitron in waters 1994. HMSO, 1994.

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Gerecke, Andreas Christian. Phenylurea herbicides in the aquatic environment - Sources and elimination processes. 2001.

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Dept.of Environment. Phenylurea Herbicides (Urons), Dinocap, Dinoseb, Benomyl, Carbendazim and Metamitron in Waters (Methods for the Examination of Waters & Associated Minerals). Stationery Office Books, 1994.

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Book chapters on the topic "Phenylurea"

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Karanov, Emanuil, Lyubomir Iliev, T. S. Georgi Georgiev, Maria Tsolova, Vera Alexieva, and Irina Puneva. "Physiology and application of phenylurea cytokinins." In Progress in Plant Growth Regulation. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2458-4_103.

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Lara-Moreno, Alba, Jaime Villaverde, Marina Rubio-Bellido, Fernando Madrid, and Esmeralda Morillo. "Abiotic and Biological Technologies for the Remediation of Phenylurea Herbicides in Soils." In The Handbook of Environmental Chemistry. Springer International Publishing, 2021. http://dx.doi.org/10.1007/698_2021_799.

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Whitelegge, Julian, Simon Bowden, Jonathan Nugent, Philip Jewess, Patrick Camilleri, and John Bowyer. "The Effect of Phenylurea and Phenylbiuret Herbicides on the QA −-Fe ESR Signal of Photosystem 2." In Current Research in Photosynthesis. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0511-5_139.

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Pardasani, R. T., and P. Pardasani. "Molar magnetic moment of bis[3-(4′-phenylthiazole-2′-yl)-1-(2′-hydroxy-1′-iminomethyl)phenylurea]cobalt(II)." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 2. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62466-1_409.

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Pardasani, R. T., and P. Pardasani. "Molar magnetic moment of bis[3-(4′-phenylthiazole-2′-yl)-1-(2′,4′-dihydroxy-1′-iminomethyl)phenylurea]cobalt(II)." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 2. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62466-1_410.

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Pardasani, R. T., and P. Pardasani. "Molar magnetic moment of bis[3-(4′-phenylthiazole-2′-yl)-1-(2′,-hydroxy-5′-chloro-1′-iminomethyl)phenylurea]cobalt(II)." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 2. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62466-1_411.

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Chevreuil, M., M. Garmouma, and N. Fauchon. "Variability of herbicides (triazines, phenylureas) and tentative mass balance as a function of stream order, in the river Marne basin (France)." In Man and River Systems. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-2163-9_37.

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Liu, Jing. "Phenylurea Herbicides." In Handbook of Pesticide Toxicology. Elsevier, 2001. http://dx.doi.org/10.1016/b978-012426260-7.50070-7.

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Liu, Jing. "Phenylurea Herbicides." In Hayes' Handbook of Pesticide Toxicology. Elsevier, 2010. http://dx.doi.org/10.1016/b978-0-12-374367-1.00080-x.

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Shudo, Koichi. "Chemistry of Phenylurea Cytokinins." In Cytokinins. CRC Press, 2019. http://dx.doi.org/10.1201/9781351071284-3.

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Conference papers on the topic "Phenylurea"

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Walden, Chad A., Joel M. Reid, Renee M. McGovern, Joseh M. Covey, and Matthew M. Ames. "Abstract 4557: LC/MS/MS assay and mouse pharmacokinetics of the phenylurea thiocarbamate NSC 161128." In Proceedings: AACR 104th Annual Meeting 2013; Apr 6-10, 2013; Washington, DC. American Association for Cancer Research, 2013. http://dx.doi.org/10.1158/1538-7445.am2013-4557.

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