Var Major
Mostrando 25-36 de 115 artigos, teses e dissertações.
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25. Composição e atividade antibacteriana dos óleos essenciais de Senecio crassiflorus var. crassiflorus
The essential oils of leaves, aerial and underground stems of Senecio crassiflorus var. crassiflorus were extracted by hydrodistillation and their analyses were performed by GC/MS. Qualitative and quantitative differences have been found between the analyzed parts. The main compounds of the essentials oils of the leaves were found to be oxygenated sesquiterp
Química Nova. Publicado em: 2008
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26. Exchange rate, interest rate and prices in the Brazilian system of inflation targets / Taxa de câmbio, taxa de juros e preços no regime brasileiro de metas de inflação
The deployment of a new system of monetary policy at the end of the decade of 1990 meant major changes in policy to combat inflation in Brazil. By the year 1999 monetary policy was restrictive, with an exchange rate that could be valued. After July 1999, the Central Bank started to have only one goal: to keep inflation under control, for that, it had as only
Publicado em: 2008
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27. Estudo quÃmico e biolÃgico de Croton regelianus var. matosii (Euphobiaceae) / Chemical and biological study of Croton regelianus var. Matosii (Euphobiaceae)
This work describes the phytochemical investigation of Croton regelianus (Euphorbiaceae), with the purpose to isolate and characterize new bioactive secondary metabolites, as well as, to investigate the chemical composition of the leaf essential oils and to evaluate its biological potential. The study of the leaf essential oils from samples collected at two
Publicado em: 2008
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28. Phytotoxic and antifungal compunds from legume seeds that accumulate glactomannan and xyloglucan as cell wall storage polysacharides / Substancias fitotoxicas e antifungicas em sementes de leguminosas que acumulam gelactomanano e xiloglucano como carboidratos de reservas de parede celular
Sesbania virgata (Cav.) Pers. and Hymenaea courbaril L. var. stilbocarpa (Fabaceae) are two tropical legume species with seeds that contain galactomannan and xyloglucan, respectively, as seed storage polysaccharides, which are broken down after germination, generating large amounts of monosaccharides and oligosaccharides. Part of these sugars is released to
Publicado em: 2008
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29. NOVIDADES TAXONÔMICAS EM ESPÉCIES BRASILEIRAS DE CROTALARIA SECT. CALYCINAE WIGHT &ARN. (LEGUMINOSAE-PAPILIONOIDEAE)
RESUMO São propostas as sinonimizações de quatro espécies e de duas variedades: Crotalaria brasiliensis Windler & S.G. Skinner em Crotalaria grandiflora Benth., Crotalaria barretoensis Windler & S.G.Skinner em Crotalaria martiana Benth.subsp. martiana, Crotalaria hatschbachii Windler& S.G.Skinner, Crotalaria hatschbachii var. sericea Windler & S.G.Skinne
Rodriguésia. Publicado em: 2006-01
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30. Foliar anatomy of species of Chamaecrista Moench. (Leguminosae/Caesalpinioideae) occurring in rupestrial fields / Anatomia foliar de espécies de Chamaecrista Moench. (Leguminosae/Caesalpinioideae) ocorrentes em campo rupestre
Minas Gerais state flora presents different biomas but little is known about the diversity of its species, some of which secrete natural compounds having well-known biological activity. There is a large number of species of recognized economic interest in the Leguminosae family and in the rupestrial fields of Minas Gerais, totaling 28 of the 351 species incl
Publicado em: 2006
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31. Euglenophyta no Parque Estadual Delta do Jacuí, Rio Grande do Sul, Sul do Brasil. 3. Gênero Strombomonas Defl.
Foram identificados 34 táxons específicos e infra-específicos do gênero Strombomonas Defl. resultado do estudo de amostras qualitativas no Parque Estadual Delta do Jacuí, localizado a 29°56'-30°03'S e 51°12'-51°18'W. As amostragens foram realizadas em 25 ambientes aquáticos em abril/1993 e janeiro/1994 e maio/1998 a setembro/1999. Strombomonas bory
Acta Botanica Brasilica. Publicado em: 2004-09
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32. Evidence that Synthesis of the Saccharomyces cerevisiae Mitochondrially Encoded Ribosomal Protein Var1p May Be Membrane Localized
The 5′-untranslated leaders of mitochondrial mRNAs appear to localize translation within the organelle. VAR1 is the only yeast mitochondrial gene encoding a major soluble protein. A chimeric mRNA bearing the VAR1 untranslated regions and the coding sequence for pre-Cox2p appears to be translated at the inner membrane surface. We propose that translation of
American Society for Microbiology.
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33. Expandable var1 gene of yeast mitochondrial DNA: in-frame insertions can explain the strain-specific protein size polymorphisms.
The var1 locus of yeast mitochondrial DNA encodes a protein of the small mitochondrial ribosome subunit, denoted var1 protein. The size of var1 protein was previously shown to exhibit a strain-dependent polymorphism, determined by various combinations of at least three genetic elements. We report here that the var1 gene is itself polymorphic and that the six
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34. Coordinated Regulation and Complex Formation of YELLOW VARIEGATED1 and YELLOW VARIEGATED2, Chloroplastic FtsH Metalloproteases Involved in the Repair Cycle of Photosystem II in Arabidopsis Thylakoid Membranes
Arabidopsis YELLOW VARIEGATED1 (VAR1) and VAR2 are separate loci that encode similar chloroplast FtsH proteases. To date, FtsH is the best-characterized protease in thylakoid membranes involved in the turnover of photosynthetic protein complexes. It comprises a protein family that is encoded by 12 different nuclear genes in Arabidopsis. We show here that nin
American Society of Plant Biologists.
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35. Central role of Drosophila SU(VAR)3–9 in histone H3-K9 methylation and heterochromatic gene silencing
Su(var)3–9 is a dominant modifier of heterochromatin-induced gene silencing. Like its mammalian and Schizosaccharomyces pombe homologues, Su(var) 3–9 encodes a histone methyltransferase (HMTase), which selectively methylates histone H3 at lysine 9 (H3-K9). In Su(var)3–9 null mutants, H3-K9 methylation at chromocentre heterochromatin is strongly reduced
Oxford University Press.
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36. Aliphatic Chains of Esterified Lipids in Isolated Eyespots of Euglena gracilis var. bacillaris1
Isolated eyespot granules of Euglena gracilis Klebs var. bacillaris Pringsheim contained approximately 6% lipids (based on protein). Separation of the lipid extracts by thin layer chromatography revealed four major fractions: wax esters, triacylglycerols, free fatty acids, and phospholipids. Methanolysis of each fraction yielded between 27 and 29 different f