Safeners
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Ação de mefenpyr-diethyl sobre a desintoxicação de fenoxaprop-´p-ethyl em variedades de trigo
Protetores ou safeners protegem culturas contra a injúria de herbicidas. O propósito deste estudo foi investigar a suscetibilidade diferencial de cinco variedades de trigo (Triticum aestivum) ao herbicida fenoxaprop-p-ethyl e o efeito do protetor mefenpyr-diethyl na minimização da injúria do herbicida e sobre o conteúdo de lipídios. As variedades BRS
Planta daninha. Publicado em: 2013-06
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2. TOLERANCE OF IRRIGATED RICE TO CLOMAZONE HERBICIDE BY ACTION OF SAFENERS / TOLERÂNCIA DO ARROZ IRRIGADO AO HERBICIDA CLOMAZONE PELA AÇÃO DE PROTETORES DE PLÂNTULAS
O herbicida clomazone é utilizado para controle de poáceas na cultura do arroz irrigado. Porém, sua dose de registro para essa cultura não proporciona controle eficiente para determinadas espécies de plantas daninhas. Assim, há a necessidade de elevar sua dose para melhorar a eficácia sobre estas espécies. A seletividade do clomazone no arroz irrigad
Publicado em: 2009
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3. Induction of Glutathione S-Transferases in Arabidopsis by Herbicide Safeners1
Herbicide safeners increase herbicide tolerance in cereals but not in dicotyledenous crops. The reason(s) for this difference in safening is unknown. However, safener-induced protection in cereals is associated with increased expression of herbicide detoxifying enzymes, including glutathione S-transferases (GSTs). Treatment of Arabidopsis seedlings growing i
American Society of Plant Biologists.
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4. Increasing the Glutathione Content in a Chilling-Sensitive Maize Genotype Using Safeners Increased Protection against Chilling-Induced Injury1
With the aim of analyzing their protective function against chilling-induced injury, the pools of glutathione and its precursors, cysteine (Cys) and γ-glutamyl-Cys, were increased in the chilling-sensitive maize (Zea mays) inbred line Penjalinan using a combination of two herbicide safeners. Compared with the controls, the greatest increase in the pool size
American Society of Plant Physiologists.
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5. Herbicide Safener-Binding Protein of Maize1 : Purification, Cloning, and Expression of an Encoding cDNA
Dichloroacetamide safeners protect maize (Zea mays L.) against injury from chloroacetanilide and thiocarbamate herbicides. Etiolated maize seedlings have a high-affinity cytosolic-binding site for the safener [3H](R,S)-3-dichloroacetyl-2,2,5-trimethyl-1,3-oxazol-idine ([3H]Saf), and this safener-binding activity (SafBA) is competitively inhibited by th
American Society of Plant Physiologists.
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6. Cloning and expression of a cDNA encoding a maize glutathione-S-transferase in E. coli.
The isolation and characterization of a family of maize glutathione-S-transferases (GST's) has been described previously. These enzymes are designated GSTs I, II and III based on size, substrate specificity and responsiveness to safeners. GST III has been shown to act on the herbicide alachlor as well as the commonly used substrate 1-chloro-2,4-dinitrobenzen
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7. Characterization of Maize Cytochrome P450 Monooxygenases Induced in Response to Safeners and Bacterial Pathogens1
Plants use a diverse array of cytochrome P450 monooxygenases in their biosynthetic and detoxification pathways. To determine the extent to which various maize P450s are induced in response to chemical inducers, such as naphthalic anhydride (NA), triasulfuron (T), phenobarbital, and bacterial pathogens (Erwinia stuartii, Acidovorax avenae), we have analy
American Society of Plant Physiologists.
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8. Tandemly Duplicated Safener-Induced Glutathione S-Transferase Genes from Triticum tauschii Contribute to Genome- and Organ-Specific Expression in Hexaploid Wheat1
Glutathione S-transferase (GST) gene expression was examined in several Triticum species, differing in genome constitution and ploidy level, to determine genome contribution to GST expression in cultivated, hexaploid bread wheat (Triticum aestivum). Two tandemly duplicated tau class GST genes (TtGSTU1 and TtGSTU2) were isolated from a single bacterial artifi
American Society of Plant Physiologists.
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9. Specific binding of a dichloroacetamide herbicide safener in maize at a site that also binds thiocarbamate and chloroacetanilide herbicides.
Dichloroacetamide safeners such as N,N-diallyl-2,2-dichloroacetamide and (R,S)-3-dichloroacetyl-2,2,5-trimethyl-1,3-oxazolidine protect maize (Zea mays) against injury from thiocarbamate and chloroacetanilide herbicides. Binding activity of tritium-labeled (R,S)-3-dichloroacetyl-2,2,5-trimethyl-1,3-oxazolidine (15 Ci/mmol; referred to as [3H]Saf) was charact