|
|
|
| Registros recuperados: 91 | |
|
| |
|
| |
|
| |
|
|
| Ferreira,Maria Jaiana Gomes; Nogueira,Patrícia Coelho do Nascimento; Dias,Flayanna Gouveia Braga; Silva,Larissa Morais Ribeiro da; Silveira,Edilberto Rocha; Figueiredo,Evânia Altina Teixeira de. |
| ABSTRACT: The plant, Amburana cearensis A. C. Smith (Fabaceae), commonly called cumaru, is widespread in the Caatinga cearense, a less known ecosystem in Brazil. A. cearensis is rich in several compounds like protocatechuic acid, tannins, coumarin, flavonoids and phenolic heterosides, such as amburosides A and B, that have been isolated. The aim of this study was to determine the antimicrobial potential and draw the chemical profile of the distinct characteristics of A. cearensis stem bark decoction, for its possible potential as a food conservation agent. The chemical compounds were characterized by one- and two-dimensional 1H and 13C NMR analyses and Liquid Chromatography-Mass Spectrometry (LCMS). The compounds of coumarin, amburosides A and B, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioactive compounds; Microorganisms; Natural antimicrobials. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300452 |
| |
|
| |
|
|
| Santos,Miriam Langner dos; Berlitz,Diouneia Lisiane; Wiest,Shana Leticia Felice; Schünemann,Rogerio; Knaak,Neiva; Fiuza,Lidia Mariana. |
| ABSTRACT The endophytic bacteria belong to a larger group of microorganisms that have their life-cycle partly or entirely inside the plant and are located in intra and inter-cellular spaces or in the vascular tissue. These bacteria can be found colonizing aerial parts or roots. This review aims to analyze the colonization strategies of endophytic bacteria through interaction with plants, as well as to highlight the metabolic influence of these organisms in plant tissues, which result in physiological and biochemical changes. Depending on the different mechanisms used internally to colonize a plant, these microorganisms are called obligate, facultative, or passive endophytes. Phytostimulation, biofertilization and biological control are mechanisms that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofertilization; Biological control; Colonization strategies; Microorganisms; Phytostimulation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100200 |
| |
|
| |
|
| |
|
|
| Medeiros,E.S.; Freitas,M.F.L.; Pinheiro Júnior,J.W.; Saukas,T.N.; Krewer,C.C.; Santos,A.S.; Costa,M.M.; Mota,R.A.. |
| Este estudo teve como objetivo avaliar a frequência de mastite clínica e subclínica e descrever os micro-organismos envolvidos no processo inflamatório da glândula mamária nos rebanhos de búfalos leiteiros no Nordeste do Brasil. Foram analisadas 1.896 amostras de leite provenientes de 474 búfalos em quatro propriedades localizadas nos Estados de Alagoas, Bahia, Ceará e Pernambuco. Após o exame físico da glândula mamária, as amostras de leite de cada teto foram submetidas aos testes da caneca do fundo preto e CMT (California Mastitis Test). As amostras que apresentaram scores ++ e +++ no CMT e as positivas para a caneca do fundo preto foram submetidas ao exame microbiológico. Do total de amostras estudadas, 90/1.896 (4,74%) apresentaram mastite clínica. Com... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Milk; Mammary gland; Buffaloes; Microorganisms. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000600043 |
| |
|
|
| Díaz Martínez, María Esther. |
| En este trabajo se evaluó la germinación de semillas y el crecimiento de plantas de C. equisetifolia L. ante diesel, y su potencial de fitorremediación en combinación de bioaumentación y bioestimulación. La primera fase experimental evaluó el efecto tóxico de 15 dosis de diesel (0, 100, 250, 500, 800, 1000, 1500, 2000, 2500, 3000, 5000, 7500, 10000, 15000 y 20000 mg kg-1) en la germinación de semillas y la emergencia de plántulas. A los 10 días, la germinación fue mayor en concentraciones altas de diesel; la mayor geminación ocurrió en 20000 mg kg-1, y la menor se registró ante 5000 mg kg-1. La emergencia de plántulas fue mayor en las concentraciones menores a 5000 mg kg-1. A los 15 días, el crecimiento de las plántulas disminuyó ante concentraciones... |
|
Palavras-chave: Germinación; Emergencia de plantas; Simbiosis; Fertilización; Microorganismos; Degradación de hidrocarburos; Seed germination; Seedling emergence; Symbiosis; Fertilization; Microorganisms; Hydrocarbon degradation; Maestría; Edafología. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/730 |
| |
|
| |
|
|
| Portier, R; Meyers, S. |
| The environmental effect and fate of several agricultural and industrial source toxicants were evaluated in controlled laboratory microcosm systems in the presence of the aminopolysaccharide polymer, chitin. Toxicants examined included methyl parathion, phenol, pentachlorophenol, 2,4 dichlorophenol, 1,2 dichloroethane and Kepone. Microcosm operating parameters, including pH/Eh, salinity, temperature, flow rate and sediment/water interface conditions, were based on comparable in situ measurements. Fate analysis predictions were based on mineralization of the parent toxicant compound as measured by chromatographic analysis or super(14)CO sub(2) expiration. Chitin, amended to continuous flow microcosms, promoted either cometabolic or cooxidative... |
| Tipo: Text |
Palavras-chave: Controlled conditions; Chemical pollutants; Industrial wastes; Pesticides; Metabolism; Food webs; Biodegradation; Ecosystems; Microorganisms; Environmental effects; Brackishwater pollution; Estuaries; Toxicants; Chitin. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-1011.pdf |
| |
|
| |
|
| |
|
|
| Carvalho,Eliane Maria de; Massarollo,Paulo Celso Bosco; Levin,Anna S.; Isern,Maria Rita Montenegro; Pereira,Wilson Leite; Abdala,Edson; Rossi,Flavia; Mies,Sérgio. |
| Nosocomial pneumonia is a common complication in patients on mechanical ventilation and results in significant mortality. Diagnosis of pneumonia in patients who are intubated and under mechanical ventilation is difficult, even with the aid of clinical, laboratorial, and endoscopic tests. The objective of this study was to compare three methods of tracheal sputum collection in patients with a clinical and radiological diagnosis of pneumonia. Twenty-two patients with a clinical diagnosis of liver disease were enrolled, 18 years of age or older, 13 males and nine females, who had been mechanically ventilated over an intubation period of 5.86 ± 4.62 days. These patients were being treated in intensive care unit (ICU) of the Liver Transplantdepartment.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pneumonia; Microorganisms; Bronchoalveolar lavage; Tracheal aspiration; Closed aspiration system. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000100015 |
| |
|
| |
|
| |
|
|
| Martins, Adriana de Souza; CESCAGE; Vieira, Paulo de Figueiredo; UNIFENAS; Berchielli, Telma Teresinha; UNESP; Prado, Ivanor Nunes do; UEM. |
| Estudou-se o efeito da adição de enzimas fibrolíticas (celulase e xilanase) sobre a degradabilidade in situ da matéria seca (MS), proteína bruta (PB), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA) e hemicelulose da silagem de milho (SM) e da palha de arroz (PA), utilizando seis bovinos fistulados no rúmen. Também foi avaliada a proporção de nitrogênio (N) insolúvel em detergente ácido em relação ao N total (NIDA/N total). As enzimas fibrolíticas foram extraídas dos fungos Aspergillus Níger e Trichoderma longibrachiatum, sendo fornecido 0,75 g kg-1 de MS animal-1 dia-1, via cânula ruminal. Os tempos de incubação foram: 0, 3, 6, 12, 24, 48, 72 e 96 h. Os resíduos de incubação foram comparados por meio da microscopia eletrônica de... |
|
Palavras-chave: 5.04.03.00-1 Nutrição e Alimentação Animal celulase; Fibra; Microrganismos; Microscopia eletrônica; Rúmen. cellulose; Electron micrograph; Fiber; Microorganisms; Rumen.. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6462 |
| |
|
|
| Taffarel,Loreno Egidio; Mesquita,Eduardo Eustáquio; Castagnara,Deise Dalazen; Costa,Patrícia Barcellos; Neres,Marcela Abbado; Horn,Marcelina Bottoni; Oliveira,Paulo Sérgio Rabello de; Meinerz,Cristiane Claudia. |
| The objective of this study was to estimate the dehydration curve and occurrence of fungi and mycotoxins in Tifton 85 hay. The experimental design was randomized blocks in split plots with four replications and five levels of nitrogen (0, 25, 50, 75 and 100 kg ha-1) in the form of urea, two regrowth ages (28 and 35 days) and drying hay in the sun and in shed. After harvesting, the grass was sampled four times (0, 8, 23 and 32 hours) to dry in the sun and twelve times (0, 3, 18, 27, 42, 51, 66, 75, 90, 99, 114 and 123 hours) for drying in shed, turned over daily. The fungi were identified after seeding and growth in three steps of haymaking (cutting, baling and after 30 days of storage). To verify the presence of mycotoxins, 20 samples, composed of hay... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Contaminants; Dry matter; Forage conservation; Microorganisms; Toxins. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600003 |
| |
|
|
| Belém,Clérison dos Santos; Souza,Anderson Miranda de; Lima,Patrícia Rodrigues de; Carvalho,Francisco Allan Leandro de; Queiroz,Mário Adriano Ávila; Costa,Mateus Matiuzzi da. |
| ABSTRACT Preserving forage plants adapted to a semi-arid climate as silage may minimize the animal feed deficit during drought. The objective of this study was to evaluate the effects of different quantities of grape pomace added to Calotropis procera silage on its fermentation, in vitro digestibility, total digestible nutrients and microbiology. A completely randomized experimental design was used with four treatments (0, 10, 20 and 40% fresh matter) and four replicates. The silos were opened after 90 days of ensilage, and the soluble carbohydrate, ethanol, organic acid and ammoniacal nitrogen concentrations; pH; fermentation loss; dry matter (DM) recovery; DM density, and microbial populations were determined. The pH (3.96-3.87) was adequate for ensiling... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fermentation losses; Microorganisms; Organic acids. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000600698 |
| |
| Registros recuperados: 91 | |
|
|
|
