Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados 52 (2) 49 (1) 58 (1) Autor Dellamano-Oliveira,Maria José (4) Colombo-Corbi,Vanessa (2) Vieira,Armando Augusto Henriques (2) Lombardi,Ana T. (1) Marchello,Adriano E. (1) Senna,Pedro Américo Cabral (1) Souza,Clovis W.O. de (1) Taniguchi,Glória Massae (1) Mais... Palavra-chave Chlorella vulgaris (1) Coliforms (1) Diversity (1) Effluent treatment (1) Escherichia coli (1) Eutrophic reservoir (1) Extracellular polysaccharides (1) Fitoplâncton (1) Microalgae (1) Microbial activity (1) Phytoplankton (1) Phytoplanktonic bloom (1) Polissacarídeos extracelulares (1) Reservatório eutrófico (1) Seasonality (1) Size-fractionated samples (1) Tropical region (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2015 (1) 2011 (1) 2007 (1) 2003 (1) País Brazil (4) Idioma Inglês (3) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Carboidratos dissolvidos do reservatório de Barra Bonita (Estado de São Paulo, Brasil) e sua relação com as algas fitoplanctônicas abundantes 49 Dellamano-Oliveira,Maria José; Colombo-Corbi,Vanessa; Vieira,Armando Augusto Henriques. O estudo dos carboidratos dissolvidos e sua relação com as algas abundantes no reservatório de Barra Bonita, foi realizado em coletas mensais (junho de 2002 a janeiro de 2004), em seis profundidades na coluna d’água, cujos valores variaram dependendo da estação do ano e do nível do reservatório, num ponto fixo, localizado 3 km a montante da barragem. Aproximadamente 90% dos carboidratos dissolvidos neste reservatório foram constituídos por carboidratos poliméricos hidrolisáveis (polissacarídeos ou oligossacarídeos). A análise de variância detectou variabilidade entre as concentrações dos carboidratos dissolvidos apenas em escala temporal (p < 0,05), sendo que no eixo vertical, as concentrações destes açúcares apresentaram-se homogêneas (p > 0,05). A... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fitoplâncton; Reservatório eutrófico; Polissacarídeos extracelulares. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000200006 Glycolytic activities in size-fractionated water samples: emphasis on rhamnosidase, arabinosidase and fucosidase activities 52 Colombo-Corbi,Vanessa; Dellamano-Oliveira,Maria José; Vieira,Armando Augusto Henriques. Glycolytic activities of eight enzymes in size-fractionated water samples from a eutrophic tropical reservoir are presented in this study, including enzymes assayed for the first time in a freshwater environment. Among these enzymes, rhamnosidase, arabinosidase and fucosidase presented high activity in the free-living fraction, while glucosidase, mannosidase and galactosidase exhibited high activity in the attached fraction. The low activity registered for rhamnosidase, arabinosidase and fucosidase in the attached fraction seemed contribute to the integrity of the aggregate and based on this fact, a protective role for these structures was proposed. The presented enzyme profiles and the differences in the relative activities probably reflected the organic... Tipo: Info:eu-repo/semantics/article Palavras-chave: Eutrophic reservoir; Extracellular polysaccharides; Phytoplanktonic bloom; Microbial activity; Size-fractionated samples. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300013 Limnological characteristics and seasonal changes in density and diversity of the phytoplanktonic community at the Caçó pond, Maranhão State, Brazil 52 Dellamano-Oliveira,Maria José; Senna,Pedro Américo Cabral; Taniguchi,Glória Massae. Seasonal changes of the phytoplanktonic community and limnological abiotic characteristics of Caçó pond (Maranhão State, Brazil) was evaluated from two field researches during the rainy (April 1999) and dry (November 1999) seasons. Measurements of twelve chemical and physical variables and phytoplankton collections were carried out at eight sampling stations. The Chlorophyceae and Cyanobacteria groups were in highest fractions during the rainy and dry seasons, respectively. The limnological abiotic variables showed a homogenous spatial distribution. The cluster analysis, using Bray-Curtis distance, distinguished two major groups, represented by the most common and abundant species in both the periods. The results showed that the climate regime, due to the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Seasonality; Phytoplankton; Diversity; Tropical region. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000400019 Microalgae population dynamics in photobioreactors with secondary sewage effluent as culture medium 58 Marchello,Adriano E.; Lombardi,Ana T.; Dellamano-Oliveira,Maria José; Souza,Clovis W.O. de. Nitrogen and phosphorus present in sewage can be used for microalgae growth, possibiliting cost reduction in the production of microalgae at the same time that it decreases the eutrophication potential of the effluent. This research aimed at monitoring the native community of microalgae and coliform bacteria in a secondary effluent from anaerobic municipal sewage treatment. Two treatments (aerated and non-aerated) were performed to grow microalgae under semi-controlled conditions in semi-closed photobioreactors in a greenhouse. The results showed no significant pH and coliforms (total and Escherichia coli) variation between treatments. Nutrient concentrations were reduced supporting microalgae growth up to 107 cells.mL−1independent of aeration. Exponential... Tipo: Info:eu-repo/semantics/article Palavras-chave: Microalgae; Effluent treatment; Coliforms; Escherichia coli; Chlorella vulgaris. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100075 Registros recuperados: 4 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco