Oryzalin
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Herbicidas Residuais em Diferentes Sistemas de Preparo do Solo.
Estudou-se a eficacia de controle de ervas daninhas pelos herbicidas de pro-emergencia oryzalin + metribuzin e cyanazine + metolachlor utilizados em soja (Glycine max, Merril) em plantio direto, em preparo reduzido do solo e em preparo convencional. A producao de soja obtida em preparo convencional foi superior a do preparo reduzido e a do plantio direto.
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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2. Autotetraploidy induction and identification in banana (Musa spp.) / INDUÃÃO E IDENTIFICAÃÃO DE POLIPLOIDIA EM Musa acuminata, Colla
The aimed study to induct and to identify polyploidys identification through stomatal analysis, chromosome counting and flow cytometry, as well polyploidys and mixoploids effects on the structural and ultrastructural characteristics in banana varieties: Malbut, Ouro, Lidi e Thong Dok Mak. In polyploidys induction, explants were treated with concentrations of
Publicado em: 2008
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3. Efeito de herbicidas sobre a polimerização dos microtúbulos e indução de micronúcleos em protoplastos de Helianthus maximiliani
Com o objetivo de estudar a cinética da despolimerização dos microtúbulos e a dinâmica da indução de micronúcleos, usaram-se dois herbicidas com ação antimitótica, amiprofós-metil (APM) e oryzalin (ORY), em células de Helianthus maximiliani. A aplicação de ambos os herbicidas em células com ativo crescimento resultou num elevado número de c�
Revista Brasileira de Fisiologia Vegetal. Publicado em: 2000
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4. Rapid and Reversible High-Affinity Binding of the Dinitroaniline Herbicide Oryzalin to Tubulin from Zea mays L.
Oryzalin, a dinitroaniline herbicide, was previously reported to bind to plant tubulin with a moderate strengthe interaction (dissociation constant [Kd] = 8.4 [mu]M) that appeared inconsistent with the nanomolar concentrations of drug that cause the loss of microtubules, inhibit mitosis, and produce herbicidal effects in plants (L.C. Morejohn, T.E. Bureau, J
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5. Mode of Dinitroaniline Herbicide Action: II. CHARACTERIZATION OF [14C]ORYZALIN UPTAKE AND BINDING 1
The intracellular binding of dinitroaniline herbicides was studied in order to analyze the mechanism of their colchicine-like action. When corn root apices (5 millimeters) are incubated in [14C]oryzalin (a dinitroaniline herbicide), the 14C is taken up rapidly, reaching a plateau in about 4 hours, which corresponds to the minimum incubation time in oryzalin
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6. Competitive Inhibition of High-Affinity Oryzalin Binding to Plant Tubulin by the Phosphoric Amide Herbicide Amiprophos-Methyl.
Amiprophos-methyl (APM), a phosphoric amide herbicide, was previously reported to inhibit the in vitro polymerization of isolated plant tubulin (L.C. Morejohn, D.E. Fosket [1984] Science 224: 874-876), yet little other biochemical information exists concerning this compound. To characterize further the mechanism of action of APM, its interactions with tubuli
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7. Disorganization of Cortical Microtubules Stimulates Tangential Expansion and Reduces the Uniformity of Cellulose Microfibril Alignment among Cells in the Root of Arabidopsis1
To test the role of cortical microtubules in aligning cellulose microfibrils and controlling anisotropic expansion, we exposed Arabidopsis thaliana roots to moderate levels of the microtubule inhibitor, oryzalin. After 2 d of treatment, roots grow at approximately steady state. At that time, the spatial profiles of relative expansion rate in length and diame
American Society of Plant Biologists.
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8. Dinitroanilines Bind α-Tubulin to Disrupt Microtubules
Protozoan parasites are remarkably sensitive to dinitroanilines such as oryzalin, which disrupt plant but not animal microtubules. To explore the basis of dinitroaniline action, we isolated 49 independent resistant Toxoplasma gondii lines after chemical mutagenesis. All 23 of the lines that we examined harbored single point mutations in α-tubulin. These poi
The American Society for Cell Biology.
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9. Unstable F-Actin Specifies the Area and Microtubule Direction of Cell Expansion in Arabidopsis Root Hairs
Plant cells expand by exocytosis of wall material contained in Golgi-derived vesicles. We examined the role of local instability of the actin cytoskeleton in specifying the exocytosis site in Arabidopsis root hairs. During root hair growth, a specific actin cytoskeleton configuration is present in the cell's subapex, which consists of fine bundles of actin f
American Society of Plant Biologists.
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10. Endoplasmic Microtubules Configure the Subapical Cytoplasm and Are Required for Fast Growth of Medicago truncatula Root Hairs1
To investigate the configuration and function of microtubules (MTs) in tip-growing Medicago truncatula root hairs, we used immunocytochemistry or in vivo decoration by a GFP linked to a MT-binding domain. The two approaches gave similar results and allowed the study of MTs during hair development. Cortical MTs (CMTs) are present in all developmental stages.
American Society of Plant Physiologists.
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11. Synthesis and Evaluation of Dinitroanilines for Treatment of Cryptosporidiosis
The efficacy of a series of dinitroaniline herbicide derivatives for the treatment of Cryptosporidium parvum infections has been studied. The lead compounds oryzalin (compound 1) and trifluralin (compound 2) have low water solubility (<3 ppm) which was alleged to be a major contributor to their poor pharmacokinetic availability. Derivatives of compounds 1 an
American Society for Microbiology.
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12. In Vivo Analysis of Cell Division, Cell Growth, and Differentiation at the Shoot Apical Meristem in Arabidopsis
The aerial parts of the plant are generated by groups of rapidly dividing cells called shoot apical meristems. To analyze cell behavior in these structures, we developed a technique to visualize living shoot apical meristems using the confocal microscope. This method, combined with green fluorescent protein marker lines and vital stains, allows us to follow
American Society of Plant Biologists.