Results 121 to 130 of about 2,266 (185)

Phytotoxic activity of grammicin produced by the fungus Xylaria grammica (Ascomycota) recovered from infected lesions on Handroanthus serratifolius (Bignoniaceae) leaves. [PDF]

Pest Manag Sci
Barreto DLC, Cantrell CL, Reichley AC, Bajsa-Hirschel J, Tamang P, Pan Z, Barickman TC, Pandey P, Chittiboyina AG, Khan SI, Duke SO, Dayan FE, Traxler C, de Carvalho CR, do Nascimento de Queiroz SC, Rosa LH.   +15 more
europepmc   +1 more source

The natural herbicide rhein targets photosystem I. [PDF]

Sci Rep
Twitty A, Barnes H, Levy N, Mizrahi Y, Geva Y, Phillip Y, Dayan FE.   +6 more
europepmc   +1 more source

A new amidohydrolase and β-oxidation-like pathway for piperine catabolism in soil actinomycetes. [PDF]

J Biol Chem
Jian P, Kumano T, Kimura M, Kurisaki M, Hashimoto Y, Kobayashi M.   +5 more
europepmc   +1 more source

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Kinetics of the chemical degradation of diuron

Chemosphere, 2002
The influence of pH and buffer concentration on the chemical degradation of diuron in water has been analysed over a wide temperature range. The process irreversibly gives 3,4-dichloroaniline as the only product containing the phenyl ring. H+, OH- and phosphate buffer are efficient catalysts of the reaction. The rate constant first increases rapidly at
SALVESTRINI, Stefano, DI CERBO P, CAPASSO S.   +2 more
openaire   +3 more sources

Diuron sorption isotherms in freshwater biofilms

Science of The Total Environment, 2019
Biofilms are excellent bioindicators for water quality assessment because of their ability to integrate contamination, and their position at the base of the trophic chain in aquatic environments. Pesticides are ubiquitous in aquatic environments and can constantly interact with aquatic organisms, including those that make up biofilms, at fluctuating ...
Chaumet, Betty, Morin, Soizic, Boutry, Sébastien, Mazzella, Nicolas   +3 more
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Photolysis of Diuron

Pesticide Science, 1997
The major photoproducts observed in the photolysis of diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea] (2) in aqueous solution resulted from a heterolytic substitution of chlorine by OH (photohydrolysis). A wavelength effect was observed: at 254 nm the formation of 3-(4-chloro-3-hydroxyphenyl)-1,1-dimethylurea (3) accounted for more than 90% of the ...
Jaromír Jirkovský, Valérie Faure, Pierre Boule   +2 more
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Behavioral Responses to Atrazine and Diuron in Goldfish

Archives of Environmental Contamination and Toxicology, 1998
Experiments were performed in goldfish to determine the effects of a short-term exposure (24 h) to atrazine or diuron (0.5, 5, 50 microgram/L) on some behavior endpoints related to swimming and social activities. Observations were also made to assess the influence of such exposure on the behavioral responses of fish to the flow of a crude skin extract ...
Saglio, Philippe, Trijasse, S.
openaire   +3 more sources

Environmental Impact of Diuron Transformation: A Review

Chemosphere, 2004
Diuron is a biologically active pollutant present in soil, water and sediments. A synthesis of literature data on its physicochemical properties, partitioning behaviour, abiotic and biotic transformations, toxicological and ecotoxicological impacts has been here performed.
S, Giacomazzi, N, Cochet
exaly   +3 more sources

Aerobic degradation of diuron by aquatic microorganisms

Journal of Environmental Science and Health, Part B, 1982
Degradation of diuron [3-(3,4-dichlorophenyl)-1,1-dimethyl-urea] by microorganisms obtained from pond water and sediment was determined under aerobic conditions. Enrichment procedures were used to isolate cultures capable of degrading the herbicide. Several mixed fungal/bacterial and mixed bacterial cultures were isolated that could degrade diuron. The
P A, Ellis, N D, Camper
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Titrimetric determination of diuron in herbicide formulations

The Analyst, 1969
Diuron is extracted with chloroform from a dispersion of the sample in 4 N hydrochloric acid and, after evaporation of the solvent, is hydrolysed in boiling 24 N sulphuric acid. The liberated dimethylamine is distilled into 2 per cent. boric acid and titrated with 0·05 N hydrochloric acid with methylene blue-methyl red as indicator.
S H, Yuen, B, Milosevic
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