Showing 1-30 of 39 results for "46120"
George F Antonious
Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes, 47(7), 608-621 (2012-05-09)
Bioremediation is the use of living organisms, primarily microorganisms, to degrade environmental contaminants into less toxic forms. Nine biobeds (ground cavity filled with a mixture of composted organic matter, topsoil, and a surface grass) were established at Kentucky State University...
Patrick L Tomco et al.
Journal of agricultural and food chemistry, 58(6), 3674-3680 (2010-02-25)
Clomazone (trade names Cerano and Command) is a popular herbicide used on California rice fields to control aquatic weeds. Its physicochemical characteristics indicate that it will persist primarily in the water column, where microbial degradation may drive its environmental fate....
Chao Xu et al.
The Science of the total environment, 392(2-3), 284-289 (2008-01-08)
Field burning of crop residue is a common post-harvest practice to dispose of these agricultural by-products and for land clearing. Burned crop residues may effectively adsorb pesticides and thus influence their bioavailability in agricultural soils. The adsorption of clomazone by...
Patti L TenBrook et al.
Pest management science, 61(6), 567-571 (2005-01-22)
Seedlings of rice, early watergrass (thiobencarb-resistant and thiobencarb-susceptible biotypes, R and S, respectively), and late watergrass (thiobencarb-resistant and thiobencarb-susceptible biotypes, R and S, respectively) were hydroponically exposed to clomazone at concentrations ranging from 0.08 to 7.9 microM. Whole-plant growth (mg...
Katie E Driver et al.
Pesticide biochemistry and physiology, 162, 1-5 (2019-12-15)
Bearded sprangletop (Leptochloa fusca spp. fasicularis) is a problematic weed in California rice (Oryza sativa) production. Historically, bearded sprangletop is controlled with clomazone in California rice fields. The continuous use of clomazone and lack of crop rotation in rice fields...
Amrith S Gunasekara et al.
Pest management science, 65(6), 711-716 (2009-03-26)
Clomazone is a herbicide used to control broadleaf weeds and grasses. Clomazone use in agriculturally important crops and forests for weed control has increased and is a potential water contaminant given its high water solubility (1100 microg mL(-1)). Soil sorption...
Hagai Yasuor et al.
Pest management science, 64(10), 1031-1039 (2008-05-22)
Late watergrass [Echinochloa phyllopogon (Stapf.) Koss.] is a major weed of Californian rice that has evolved P450-mediated metabolic resistance to multiple herbicides. Resistant (R) populations are also poorly controlled by the recently introduced herbicide clomazone. The authors assessed whether this...
April R Van Scoy et al.
Reviews of environmental contamination and toxicology, 229, 35-49 (2014-02-12)
Clomazone, an isoxazolane herbicide, was first registered for use in 1986 for pest grasses and broad leaf weeds. Although the exact mode of action is still unclear, it is well documented that clomazone causes bleaching of foliar structures; the clomazone...
Denise dos Santos Miron et al.
Chemosphere, 74(1), 1-5 (2008-11-08)
This study aims to verify the effects of the clomazone concentration used in rice fields on acetylcholinesterase (AChE), thiobarbituric acid reactive substances (TBARS), protein carbonyl and catalase activity in tissues of piava (Leporinus obtusidens). LC(50)-96h was 5.0 mg L(-1) and...
Petr Vítek et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 170, 234-241 (2016-07-28)
The effects of herbicides from three mode-of-action groups - inhibitors of protoporphyrinogen oxidase (carfentrazone-ethyl), inhibitors of carotenoid biosynthesis (mesotrione, clomazone, and diflufenican), and inhibitors of acetolactate synthase (amidosulfuron) - were studied in sunflower plants (Helianthus annuus). Raman spectroscopy, chlorophyll fluorescence...
Mariana Carlomagno et al.
Journal of agricultural and food chemistry, 58(7), 4367-4371 (2010-03-23)
The environmental impact of rice agriculture is poorly studied in developing countries, mainly due to limitations of the analytical capacity. Here, we report the development of a clomazone enzyme-linked immunosorbent assay as a fast and cost-effective tool to monitor the...
Wendy C Quayle et al.
Journal of agricultural and food chemistry, 54(19), 7213-7220 (2006-09-14)
The fates of clomazone [2-(2-chlorophenyl)methyl-4,4-dimethyl-3-isoxazolidinone], molinate (S-ethyl hexahydro-1-H-azepine-1-carbothioate), and thiobencarb {S-[(4-chlorophenyl)methyl]diethylcarbamothioate} applied to rice were studied at two locations in New South Wales (Australia). Rates of dissipation (DT50) from floodwaters and soils were measured. Dissipation of the three herbicides from...
Denise dos Santos Miron et al.
Ecotoxicology and environmental safety, 61(3), 398-403 (2005-06-01)
Fingerlings of the silver catfish (Rhamdia quelen) were exposed to three herbicides widely used in rice culture in south Brazil: clomazone, quinclorac, and metsulfuron methyl. LC50 was determined and acetylcholinesterase (AChE) activity was evaluated in brain and muscle tissue of...
Hagai Yasuor et al.
Plant physiology, 153(1), 319-326 (2010-03-09)
Echinochloa phyllopogon (late watergrass) is a major weed of California rice (Oryza sativa) that has evolved cytochrome P450-mediated metabolic resistance to different herbicides with multiple modes of action. E. phyllopogon populations from Sacramento Valley rice fields have also recently shown...
Gabriel Lassabe et al.
Analytical chemistry, 86(11), 5541-5546 (2014-05-07)
Small compounds cannot bind simultaneously to two antibodies, and thus, their immunodetection is limited to competitive formats in which the analyte is indirectly quantitated by measuring the unoccupied antibody binding sites using a competing reporter. This limitation can be circumvented...
George F Antonious
Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes, 46(1), 76-83 (2010-12-31)
Dimethazone, also known as clomazone [2-[(2-chlorophenyl) methyl]- 4,4-dimethyl-3-isoxaolidinone] is a pre-emergent nonionic herbicide commonly used in agriculture. A field study was conducted on a silty-loam soil of 10 % slope to monitor off-site movement and persistence of dimethazone in soil...
M Dobozi et al.
Communications in agricultural and applied biological sciences, 68(4 Pt A), 441-447 (2004-05-20)
In our experiments the effect of three preemergent herbicides was examined on potato varieties. The experiments were carried out under greenhouse conditions in pots with six Hungarian potato varieties. The following herbicides were applied: PATORAN 50 WP (metobromuron), SENCOR 70...
Pedro M David Gara et al.
Photochemistry and photobiology, 85(3), 686-692 (2008-12-11)
The photodegradation of the herbicide clomazone in the presence of S(2)O(8) (2-) or of humic substances of different origin was investigated. A value of (9.4 +/- 0.4) x 10(8) m(-1) s(-1) was measured for the bimolecular rate constant for the...
Patrick L Tomco et al.
Pest management science, 68(8), 1141-1147 (2012-03-31)
Clomazone is a popular herbicide used on California rice fields and exhibits rapid anaerobic microbial degradation (t(1/2) = 7.9 days). To test the potential of direct and indirect photolytic degradation as a cofactor in the overall degradation rate, sacrificial time-series...
Mariana Carlomagno et al.
Analytical chemistry, 86(20), 10467-10473 (2014-09-27)
Short peptide loops selected from phage libraries can specifically recognize the formation of hapten-antibody immunocomplexes and can thus be used to develop phage anti-immunocomplex assays (PHAIA) for noncompetitive detection of small molecules. In this study, we generated recombinant chimeras by...
Roberta Cattaneo et al.
Archives of environmental contamination and toxicology, 62(1), 97-106 (2011-04-22)
Field and laboratory experiments were performed to evaluate toxicological responses of Cyprinus carpio exposed to the commercial herbicide clomazone (500 mg l(-1)). Fish were exposed to 0.5 mg l(-1) of the formulated herbicide for 7, 30, and 90 days. Fish were exposed to clomazone in...
Charlene Menezes et al.
Environmental toxicology and pharmacology, 36(2), 706-714 (2013-07-31)
The study investigated the capacity of diphenyl diselenide [(PhSe)2] (3.0mg/kg), on reduce the oxidative damage in liver, gills and muscle of carp and silver catfish exposed to clomazone (192h). Silver catfish exposed to clomazone showed increased thiobarbituric acid-reactive substance (TBARS)...
Angélique Lazartigues et al.
Talanta, 85(3), 1500-1507 (2011-08-03)
Pesticides residues in aquatic ecosystems are an environmental concern which requires efficient analytical methods. In this study, we proposed a generic method for the quantification of 13 pesticides (azoxystrobin, clomazone, diflufenican, dimethachlor, carbendazim, iprodion, isoproturon, mesosulfuron-methyl, metazachlor, napropamid, quizalofop and...
Marc Clastre et al.
Experimental parasitology, 116(4), 375-384 (2007-04-03)
The apicoplast is a recently discovered, plastid-like organelle present in most apicomplexa. The methylerythritol phosphate (MEP) pathway involved in isoprenoid biosynthesis is one of the metabolic pathways associated with the apicoplast, and is a new promising therapeutic target in Plasmodium...
Elena M Diaz Kirmser et al.
Journal of agricultural and food chemistry, 58(24), 12858-12862 (2010-11-26)
Activated sodium peroxydisulfate has the potential to in situ destruct many organic contaminants because of the generation of the stronger oxidant sulfate radical. From photochemical activation of peroxydisulfate in flash-photolysis experiments, the bimolecular rate constants for the reaction of sulfate...
Márcia Crestani et al.
Ecotoxicology and environmental safety, 65(1), 48-55 (2005-08-16)
The effects of clomazone (0.5 and 1.0 mg/L) according to nominal concentrations used in paddy rice fields (0.4-0.7 mg/L) on protein and carbohydrate metabolism and haematological parameters were evaluated in silver catfish (Rhamdia quelen) after 12, 24, 48, 96 and...
A X R Corrêa et al.
Ecotoxicology (London, England), 18(4), 464-469 (2009-02-28)
The objective of this study was to investigate the feasibility of an in situ phytotoxicity test using alginate-immobilized algae for 60 days, in the assessment of water quality in an impacted small peri-urban stream. After laboratory optimization of algae immobilization/de-immobilization...
Charlene Menezes et al.
Bulletin of environmental contamination and toxicology, 92(4), 393-398 (2014-02-25)
The objective of this study was to investigate δ-aminolevulinic acid (δ-ALA-D) activity and metabolic parameters of Cyprinus carpio exposed to clomazone herbicide. Fish were exposed 2.5, 5, 10 and 20 mg L(-1) of clomazone for 192 h. Results indicated that...
Márcia Crestani et al.
Chemosphere, 67(11), 2305-2311 (2007-02-07)
The effects of the herbicide, clomazone, on acetylcholinesterase (AChE), catalase and TBARS formation in teleost fish (Rhamdia quelen) were studied. The fish were exposed to 0.5 or 1.0 mg L(-1) of clomazone for 12, 24, 48, 96 and 192 h....
Yanying Li et al.
Journal of agricultural and food chemistry, 67(22), 6397-6406 (2019-05-09)
It is essential to monitor pesticides in the environment to help ensure water and soil quality. The diffusive gradients in thin-films (DGT) technique can measure quantitative in situ labile (available) concentrations of chemicals in water, soil, and sediments. This study...

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