Thionin
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Different resistance patterns of reference and field strains of Brucella abortus
The aim of this study was to evaluate the growth of the B. abortus reference strains and field isolates on media containing different inhibitor agents. Reference strains were seeded on tryptose agar containing: i-erythritol (1.0 mg/mL), fuchsin (20 μg/mL and 80 μg/mL), thionin (2.5 μg/mL and 10 μg/mL), rifampicin (200 μg/mL) and safranin O (200 μg/mL).
Braz. J. Microbiol.. Publicado em: 31/03/2015
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2. Avaliação de vacinas contra brucelose bovina no Brasil
The present work aimed to study the vaccines approved by the PNCEBT in Brazil. The first objective was to evaluate the growth of B. abortus strains on media containing different inhibitor agents in order to differentiate the vaccine strains S19 and RB51 from challenge strains and other field isolates, concluding that rifampicin, erythritol and thionin are go
Publicado em: 2009
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3. Development of photosensitizing nanoparticles / Desenvolvimento de nanopartículas fotossensibilizadoras
In this work we present the synthesis and the characterization (structural, photophysical, photochemical and photobiological) of nanoparticles with incorporated photosensitizers (PS) Methylene Blue (MB) and Thionin. MB and Thionin were incorporated in sil-MB and sil-Th nanoparticles through sol-gel process. In the case of Cab-Th nanoparticles Thionin was lin
Publicado em: 2007
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4. Análise do conteúdo de DNA (ploidia) em tecidos de glândula tireóide de ratos após indução por radiação
INTRODUÇÃO: A exposição da tireóide à irradiação está associada à alteração do componente cromossômico nessa glândula. OBJETIVO: Avaliar o conteúdo de DNA (ploidia) em glândula tireóide submetida à radiação. MATERIAL E MÉTODOS: Foram irradiadas tireóides de 75 ratos; 25 foram usados como grupo controle e não sofreram irradiação. A ex
Jornal Brasileiro de Patologia e Medicina Laboratorial. Publicado em: 2005-06
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5. Synthesis and processing of thionin precursors in developing endosperm from barley (Hordeum vulgare L.)
Thionin is a lysine-rich polypeptide (mol. wt. 5000) which is synthesized in developing barley endosperm from ˜8 days to ˜30 days after anthesis. Two thionin precursors (THP1 and THP2) have been identified using monospecific antibodies (A-TH) prepared against the mature protein. THP1, which is the only polypeptide recognized in vitro by A-TH, is encoded by
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6. Cellular responses to Pyrularia thionin are mediated by Ca2+ influx and phospholipase A2 activation and are inhibited by thionin tyrosine iodination.
Pyrularia thionin, isolated from nuts of Pyrularia pubera, is a strongly basic peptide of 47 amino acids. The amino acid sequence and configuration of its four disulfide bonds place this plant peptide, known to be hemolytic, cytotoxic, and neurotoxic, among the thionins. We report and compare several cellular responses mediated by Pyrularia thionin: hemolysi
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7. Overexpression of an endogenous thionin enhances resistance of Arabidopsis against Fusarium oxysporum.
Thionins are antimicrobial proteins that are thought to be involved in plant defense. Concordant with this view, we have recently shown that the Arabidopsis thionin Thi2.1 gene is inducible by phytopathogenic fungi. Here, we demonstrate that constitutive overexpression of this thionin enhances the resistance of the susceptible ecotype Columbia (Col-2) agains
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8. Synergistic Enhancement of the Antifungal Activity of Wheat and Barley Thionins by Radish and Oilseed Rape 2S Albumins and by Barley Trypsin Inhibitors.
Although thionins and 2S albumins are generally considered as storage proteins, both classes of seed proteins are known to inhibit the growth of pathogenic fungi. We have now found that the wheat (Triticum aestivum L.) or barley (Hordeum vulgare L.) thionin concentration required for 50% inhibition of fungal growth is lowered 2- to 73-fold when combined with
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9. An Arabidopsis thaliana thionin gene is inducible via a signal transduction pathway different from that for pathogenesis-related proteins.
Two cDNAs encoding thionin preproteins have been isolated from Arabidopsis thaliana. The corresponding genes have been designated Thi2.1 and Thi2.2. Southern blot analysis suggests that A. thaliana most probably contains single genes for both thionins. Thi2.2 transcripts have a low basal level in seedlings and show circadian variation. Thi2.2 transcripts wer
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10. Purification and Some Properties of Carbon Monoxide Dehydrogenase from Pseudomonas carboxydohydrogena
A soluble yellow CO dehydrogenase from CO-autotrophically grown cells of Pseudomonas carboxydohydrogena was purified 35-fold in seven steps to better than 95% homogeneity with a yield of 30%. The final specific activity was 180 μmol of acceptor reduced per min per mg of protein as determined by an assay based on the CO-dependent reduction of thionin. Methyl
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11. Identification of dye-sensitive strains of Brucella melitensis.
Strains of Brucella melitensis biovars 1, 2, and 3 isolated in India, Italy, Kuwait, Saudi Arabia, the Federal Republic of Germany, and Zimbabwe were inhibited by thionin (20 micrograms/ml) but not by basic fuchsin (20 micrograms/ml) or safranin O (200 micrograms/ml). In other respects the strains were typical of their species and biovars. The existence of d
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12. METABOLIC CHARACTERIZATION OF THE GENUS BRUCELLA II. : Oxidative Metabolic Patterns of the Described Biotypes
Meyer, Margaret E. (University of California, Davis), and H. S. Cameron. Metabolic characterization of the genus Brucella. II. Oxidative metabolic patterns of the described biotypes. J. Bacteriol. 82:396–400. 1961.—The oxidative metabolism of the biotypes of Brucella abortus and Brucella suis was compared to that of typical strains of these species. It w