نتایج جستجو برای: glyphosate oxidoreductase

تعداد نتایج: 18390  

2014
I. Székács Á. Fejes S. Klátyik E. Takács D. Patkó J. Pomóthy M. Mörtl E. Madarász B. Darvas A. Székács

Environmental and toxicological characteristics of formulated pesticides may substantially differ from those of their active ingredients or other components alone. This phenomenon is demonstrated in the case of the herbicide active ingredient glyphosate. Due to its extensive application, this active ingredient was found in surface and ground water samples collected in Békés County, Hungary, in ...

2013
Hsiao-Hui Chen Ja-Liang Lin Wen-Hung Huang Cheng-Hao Weng Shen-Yang Lee Ching-Wei Hsu Kuan-Hsing Chen I-Kuan Wang Chih-Chia Liang Chiz-Tzung Chang Tzung-Hai Yen

BACKGROUND Data on the spectrum of corrosive injury to the esophagus after paraquat or glyphosate-surfactant ingestion are sparse in the literature and confined to case studies and brief reports. Therefore, this study aimed to examine the clinical features, degrees of esophageal injury, and clinical outcomes after paraquat or glyphosate herbicide ingestion, and sought to determine what associat...

2007
W. Brien Henry Dale L. Shaner Mark S. West

Experiments were conducted to examine the utility of a spectrophometric leaf disc assay for detecting shikimate accumulation after glyphosate application in sunflower, proso millet, and wheat. The assay was conducted on both greenhouseand field-grown plants. Glyphosate was applied at five rates ranging from 840 to 53 g ae ha. Shikimate accumulation data were generated at 1, 4, 7, and 14 d after...

Journal: :The Science of the total environment 2015
Xiaomei Yang Fei Wang Célia P M Bento Lei Meng Ruud van Dam Hans Mol Guobin Liu Coen J Ritsema Violette Geissen

UNLABELLED The decay characteristics and erosion-related transport of glyphosate and aminomethylphosphonic acid (AMPA) were monitored for 35 d at different slope gradients and rates of application in plots with loess soil on the Loess Plateau, China. The initial glyphosate decayed rapidly (half-life of 3.5d) in the upper 2 cm of soil following a first-order rate of decay. AMPA content in the 0-...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Todd A Gaines Wenli Zhang Dafu Wang Bekir Bukun Stephen T Chisholm Dale L Shaner Scott J Nissen William L Patzoldt Patrick J Tranel A Stanley Culpepper Timothy L Grey Theodore M Webster William K Vencill R Douglas Sammons Jiming Jiang Christopher Preston Jan E Leach Philip Westra

The herbicide glyphosate became widely used in the United States and other parts of the world after the commercialization of glyphosate-resistant crops. These crops have constitutive overexpression of a glyphosate-insensitive form of the herbicide target site gene, 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS). Increased use of glyphosate over multiple years imposes selective genetic pres...

Journal: :International journal of hygiene and environmental health 2017
André Conrad Christa Schröter-Kermani Hans-Wolfgang Hoppe Maria Rüther Silvia Pieper Marike Kolossa-Gehring

The broadband herbicide glyphosate (N-[phosphonomethyl]-glycine) and its main metabolite aminomethylphosphonic acid (AMPA) were analyzed by GC-MS-MS in 24h-urine samples cryo-archived by the German Environmental Specimen Bank (ESB). Samples collected in 2001, 2003, 2005, 2007, 2009, 2011, 2012, 2013, 2014, and 2015 were chosen for this retrospective analysis. All urine samples had been provided...

2012
Luiz Henrique Saes Zobiole Robert John Kremer Rubem Silvério de Oliveira Jamil Constantin

Previous greenhouse studies have demonstrated that photosynthesis in some cultivars of first(GR1) and second-generation (GR2) glyphosate-resistant soybean was reduced by glyphosate. The reduction in photosynthesis that resulted from glyphosate might affect nutrient uptake and lead to lower plant biomass production and ultimately reduced grain yield. Therefore, a field study was conducted to det...

2017
Elodie Nivelle Julien Verzeaux Amélie Chabot David Roger Fabien Spicher Jérôme Lacoux Jose-Edmundo Nava-Saucedo Manuella Catterou Thierry Tétu

The use of nitrogen (N) fertilizer and glyphosate-based herbicides is increasing worldwide, with agriculture holding the largest market share. The agronomic and socioeconomic utilities of glyphosate are well established; however, our knowledge of the potential effects of glyphosate applied in the presence or absence of long-term N fertilization on microbial functional activities and the availab...

Journal: :Regulatory toxicology and pharmacology : RTP 2000
G M Williams R Kroes I C Munro

Reviews on the safety of glyphosate and Roundup herbicide that have been conducted by several regulatory agencies and scientific institutions worldwide have concluded that there is no indication of any human health concern. Nevertheless, questions regarding their safety are periodically raised. This review was undertaken to produce a current and comprehensive safety evaluation and risk assessme...

Journal: :Integrative medicine 2017
William Shaw

CONTEXT Autism is a neurodevelopmental disorder for which a number of genetic, environmental, and nutritional causes have been proposed. Glyphosate is used widely as a crop desiccant and as an herbicide in fields of genetically modified foods that are glyphosate resistant. Several researchers have proposed that it may be a cause of autism, based on epidemiological data that correlates increased...

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