Results 121 to 130 of about 3,472 (173)
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Amperometric Detection of Parathion and Methyl Parathion with a Microhole‐ITIES
Electroanalysis, 2011AbstractAn amperometric sensor featuring a microhole‐liquid/gel interface for the detection of both parathion and methyl parathion is developed on the basis of their different kinetics behavior when interacting with the enzyme organophosphorus hydrolase (OPH).
Md. Mokarrom Hossain +3 more
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Reductive transformation of parathion and methyl parathion by Bacillus sp.
Biotechnology Letters, 2007Based on the results of phenotypic features, phylogenetic similarity of 16S rRNA gene sequences and BIOLOG test, a soil bacterium was identified as Bacillus sp. DM-1. Using either growing cells or a cell-free extract, it transformed parathion and methyl parathion to amino derivatives by reducing the nitro group.
Chao, Yang +5 more
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Methyl Parathion: A Review of Health Effects
Journal of Toxicology and Environmental Health, Part B, 2003Methyl parathion is an organophosphorus (OP) insecticide with insecticidal properties derived from acetylcholinesterase (AChE) inhibition; this same property is also the root of its toxicity in humans. Poisoning with methyl parathion leads to cholinergic overstimulation with signs of toxicity including sweating, dizziness, vomiting, diarrhea ...
Stephanie J, Garcia +4 more
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The hematological effects of methyl parathion in rats
Journal of Hazardous Materials, 2008The effects of methyl parathion (MP) at sublethal concentration on hematological constituent [red blood corpuscles (RBC), white blood corpuscles (WBC), mean cell volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), platelet (PLT) counts, hemoglobin (Hb) and hematocrite (HCT) levels] and serum damage marker ...
Suzek, Huseyin, Çelik, İsmail
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Soil Biology and Biochemistry, 1992
Soils (an alluvial and a laterite) contained in pots were treated with methyl parathion, fenitrothion or p-nitrophenol at 15 day intervals under flooded or non-flooded (60% WHC) conditions. Suspensions (non-sterile and sterile) of these treated and untreated soils were tested for their ability to degrade methyl parathion, parathion, fenitrothion and ...
Debjani Misra +3 more
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Soils (an alluvial and a laterite) contained in pots were treated with methyl parathion, fenitrothion or p-nitrophenol at 15 day intervals under flooded or non-flooded (60% WHC) conditions. Suspensions (non-sterile and sterile) of these treated and untreated soils were tested for their ability to degrade methyl parathion, parathion, fenitrothion and ...
Debjani Misra +3 more
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Biodegradation, 2012
In this study, the mph gene encoding methyl parathion hydrolase from Pseudomonas sp. WBC-3 was expressed in Yarrowia lipolytica and the expressed methyl parathion hydrolase was displayed on cell surface of Y. lipolytica. The activity of methyl parathion hydrolase displayed on the yeast cells of the transformant Z51 was 59.5 U mg⁻¹ of cell dry cells ...
Xing-Xing, Wang +3 more
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In this study, the mph gene encoding methyl parathion hydrolase from Pseudomonas sp. WBC-3 was expressed in Yarrowia lipolytica and the expressed methyl parathion hydrolase was displayed on cell surface of Y. lipolytica. The activity of methyl parathion hydrolase displayed on the yeast cells of the transformant Z51 was 59.5 U mg⁻¹ of cell dry cells ...
Xing-Xing, Wang +3 more
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Archives of Toxicology, 1983
Methyl parathion (20 mg X kg -1 intravenously and orally) and parathion (5 mg X kg -1 intravenously and 10 mg X kg -1 orally) were given to non-anesthetized dogs and the serum concentrations were followed in function of time. For both substances a low bioavailability after oral administration was found. In other dogs radioactivity was followed in urine
R A, Braeckman +4 more
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Methyl parathion (20 mg X kg -1 intravenously and orally) and parathion (5 mg X kg -1 intravenously and 10 mg X kg -1 orally) were given to non-anesthetized dogs and the serum concentrations were followed in function of time. For both substances a low bioavailability after oral administration was found. In other dogs radioactivity was followed in urine
R A, Braeckman +4 more
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Electrochemical degradation of methyl parathion
International Journal of Environmental Engineering, 2013This paper describes the degradation of commercially available methyl parathion by electro oxidation using Ti/RuO2 as anode, stainless steel as cathode and sodium chloride as a supporting electrolyte. Experiments were carried out at constant flow rate and various current densities such as 10, 12 and15 A/dm2 and various concentrations of sodium chloride.
B. Ramesh Babu +3 more
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Persistence of methyl parathion residues on sunflower seeds
Bulletin of Environmental Contamination and Toxicology, 1966Growers of minor crops, or crops that yield marginal profits, face a particular problem in their efforts to control insect pests. Potential insecticide usage is often not great enough to stimulate widespread interest in securing data necessary to obtain a label for its use on the crop. Sunflower is a crop that falls within this category.
H W, Dorough +2 more
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Predicting the protein family of Methyl Parathion Hydrolase
International Journal of Bioinformatics Research and Applications, 2008Six motifs of Methyl Parathion Hydrolase (MPH) were discovered using a method based on the Hidden Markov Model (HMM). Most MPH from TrEMBL (Release 48.6) could be recognised by these six motifs. When these six motifs were projected onto the 3D enzyme structure, we discovered that all of them closely surrounded the active centre and might play an ...
Jian Tian +5 more
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