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| Rosa-Magri,Márcia Maria; Avansini,Simoni Helena; Lopes-Assad,Maria Leonor; Tauk-Tornisielo,Sâmia Maria; Ceccato-Antonini,Sandra Regina. |
| The alteration of minerals in rocks and the availability of elements for plant nutrition require long periods of time, and microorganisms are thought to induce the release of potassium and phosphate from rocks. In this context, this work evaluates the role of the yeast Torulaspora globosa, isolated from the sugar cane rhizosphere, in the solubilization of potassium from alkaline ultramafic rock powder. The experiments were performed in liquid medium, with or without agitation, at 30°C with the following treatments: culture medium + alkaline ultramafic; culture medium + yeast suspension; and culture medium + yeast suspension + alkaline ultramafic. The results showed that as much as 38% of the total potassium in the rock was released in the medium with the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biosolubilization; Insoluble rocks; Alkaline ultramafic. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000400013 |
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| Borges,Ana Kleiber Pessoa; Tauk-Tornisielo,Sâmia Maria; Domingos,Roberto Naves; Angelis,Dejanira de Franceschi de. |
| The aim of this work was to study the constructed wetland system for the treatment of water from the Corumbataí river simulated on a laboratory scale. The parameters analyzed at different points of the system were ammonia, biochemical demand for oxygen (BDO), chemical demand for oxygen (CDO), chlorides, apparent color, conductivity, dissolved oxygen, magnesium (Mg), sodium (Na), potassium (K), silicon (Si), total phosphorous, total coliforms and Escherichia coli, total dissolved solids (TDS), turbidity, and macrophyte biomass. The results demonstrated that this alternative water treatment system was effective in removing the microorganisms (total coliforms and E. coli), among other parameters analyzed, for varying periods of the treatment, promoting... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquatic macrophytes; Filtering soil; Microfiltration; Bioreactor; Microorganisms. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000600024 |
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| Rossi-Rodrigues,Bianca Caroline; Brochetto-Braga,Márcia Regina; Tauk-Tornisielo,Sâmia Maria; Carmona,Eleonora Cano; Arruda,Valeska Marques; Chaud Netto,José. |
| Trichoderma is one of the fungi genera that produce important metabolites for industry. The growth of these organisms is a consequence of the nutritional sources used as also of the physical conditions employed to cultivate them. In this work, the automated Bioscreen C system was used to evaluate the influence of different nutritional sources on the growth of Trichoderma strains (T. hamatum, T. harzianum, T. viride, and T. longibrachiatum) isolated from the soil in the Juréia-Itatins Ecological Station (JIES), São Paulo State - Brazil.The cultures were grown in liquid culture media containing different carbon- (2%; w/v) and nitrogen (1%; w/v) sources at 28ºC, pH 6.5, and agitated at 150 rpm for 72 h. The results showed, as expected, that glucose is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioscreen C system; Growth; Trichoderma; Tryptone; Yeast extract. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000200035 |
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| Tauk-Tornisielo,Sâmia Maria; Vieira,Joelma Maurício; Govone,José Silvio. |
| The automated Bioscreen C system was used for growth of four Mucor hiemalis strains isolated from the soil in the Juréia-Itatins Ecology Station (JIES), São Paulo state, in liquid culture media containing different carbon (2%) and nitrogen (1%) sources, pH 5.0, at 25ºC, and agitated at 150 rpm for 5 days. The medium containing only one nitrogen source had been added with 2% glucose. The readings were taken at lambda = 540 nm, at 2-hour intervals, up to five days. The results were compared using the Friedman Test (alpha = 5%). The best growth was obtained for strains M1, M2 and M3, reaching the log phase in 60 hours. The best carbon sources varied according to the strain, and yeast extract proved to be the best nitrogen source. Sodium acetate inhibited the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mucor hiemalis; Zygomycetes; Automated systems; Carbon and nitrogen sources. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000100024 |
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