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| 1 | Influence of dissolved organic matter character on mercury incorporation by planktonic organisms: An experimental study using oligotrophic water from Patagonian lakes显示文摘Ligands present in dissolved organic matter(DOM) form complexes with inorganic divalent mercury(Hg2+) afecting its bioavailability in pelagic food webs. This investigation addresses the influence of a natural gradient of DOM present in Patagonian lakes on the bioaccumulation of Hg2+(the prevailing mercury species in the water column of these lakes) by the algae Cryptomonas erosa and the zooplankters Brachionus calyciflorus and Boeckella antiqua. Hg2+accumulation was studied through laboratory experiments using natural water of four oligotrophic Patagonian lakes amended with197Hg2+. The bioavailability of Hg2+was afected by the concentration and character of DOM. The entrance of Hg2+into pelagic food webs occurs mostly through passive and active accumulation. The incorporation of Hg2+by Cryptomonas, up to 27% of the Hg2+amended, was found to be rapid and dominated by passive adsorption,and was greatest when low molecular weight compounds with protein-like or small phenolic signatures prevailed in the DOM.Conversely, high molecular weight compounds with a humic or fulvic signature kept Hg2+in the dissolved phase, resulting in the lowest Hg2+accumulation in this algae. In Brachionus and Boeckella the direct incorporation of Hg from the aqueous phase was up to3% of the Hg2+amended. The dietary incorporation of Hg2+by Boeckella exceeded the direct absorption of this metal in natural water,and was remarkably similar to the Hg2+adsorbed in their prey. Overall, DOM concentration and character afected the adsorption of Hg2+by algae through competitive binding, while the incorporation of Hg2+into the zooplankton was dominated by trophic or dietary transfer. | María C.Diéguez Claudia P.Queimalios Sergio Ribeiro Guevara Mark Marvin-DiPasquale Carolina Soto Crdenas María A.Arribre | 2013 | Journal of Environmental Sciences2013，25，10： | 6 |
| 2 | Dependency of Colorectal Cancer on a TGF-β-Driven Program in Stromal Cells for Metastasis Initiation显示文摘 | Alexandre Calon Elisa Espinet Sergio Palomo-Ponce Daniele V.F. Tauriello Mar Iglesias María Virtudes Céspedes Marta Sevillano Cristina Nadal Peter Jung Xiang H.-F. Zhang Daniel Byrom Antoni Riera David Rossell Ramón Mangues Joan Massagué Elena Sancho Edua | 2012 | Cancer Cell2012，，5： | 2 |
| 3 | Transcatheter arterial chemoembolization(TACE) in hepatocellular carcinoma(HCC):The role of angiogenesis and invasiveness显示文摘 | Sergio A Cristofori C Cardin R | 2008 | Am J Gastroenterol2008，103，3： | 1 |
| 4 | The jack mackerel fishery and El Nino 1997-98 effects off Chile 显示文摘 | Dagoberto F A Luis A C Sergio P N | 2001 | Progress in Oceanography2001，，49： | 1 |
| 5 | Transcatheter arterial che- moembolization (TACE) in hepatocellular carcinoma (HCC): the role of angiogenesis and invasiveness 显示文摘 | Sergio A Cristofori C Cardin R | 2008 | Am J Gastroenterol2008，103，4： | 1 |
| 6 | An iterative inversion approach to blind source separation显示文摘 | Sergio C A Andrzej C Luis C R | 2000 | IEEE Trans Neural Networks2000，11，6： | 1 |
| 7 | A model-based direct power control for three-phase power converters显示文摘 | SERGIO V Juan A S Juan M C | | 0，，04： | 1 |
| 8 | Induction of unstable alleles at the temperature-sensitiveVirescent-1 gene of maize using the transposable element Dissociation 显示文摘 | Sergio C E Stefania B A | 1995 | Genetical Research1995，66，： | 1 |
| 9 | Immunization of mice with recombinant L7/L12 ribosomal protein confers protection against Brucella abortus infection显示文摘 | Sergio C Oliveira Gary A Splitter | 1996 | Vaccine1996，14，10： | 1 |
| 10 | The jack mackerel fishery and EL Nino effeels of Chile显示文摘 | DAGOBERTO F A LUIS A C SERGIO P | 2001 | Progress in Oceangraphy2001，，49： | 1 |
| 11 | Vascular endothelial growth factor (VEGF)-C signaling through FLT-4 (VEGFR-3) mediates leukemic cell proliferation, survival, and resistance to chemotherapy显示文摘 | Sergio D Margaret C Kari A | 2002 | Blood2002，99，6： | 1 |
| 12 | Transcatheter arterial chemoembolization (TACE)in hepatocellular carcinoma (HCC) : the role of angiogenesis and invasiveness 显示文摘 | Sergio A Cristofori C Cardin R | 2008 | Am J Gastroenterol2008，103，： | 1 |
| 13 | Transcatheter arterial chemoembolization ( TACE ) in hepatocellular carcinoma ( HCC ) : the role of angiogenesis and invasiveness 显示文摘 | Sergio A Cristofori C Cardin R | 2008 | Am J Gastroentero12008，103，4： | 1 |
| 14 | Enrichment and Determination of Molybdenum in Geological Samples and Seawater by ICP-OES Using Calmagite and Activated Carbon显示文摘 | Hilda C Dos Santos Maria G A Korn Sergio L C Ferreira | 2001 | Anal Chim Acta2001，426，： | 1 |
| 15 | Low-resistivity Zn O∶F∶Al Transparent Thin Films显示文摘 | Delia C A Gerardo T D Sergio J S | 2004 | Solar Energy Material&Solar Cells2004，82，1： | 1 |
| 16 | Immunization of mice with recombinant L7/L12 ribosomal protein confers protein confers protection against Brucella abortus infection 显示文摘 | Sergio C Oliveira J Gary A | 1996 | Vaccine1996，14，10： | 1 |
| 17 | Oxidative stress expression status associated to Helicobacter pylori virulence in gastric diseases显示文摘 | Amanda C A Fernanda M Sergio M | 2007 | Clinical Biochemistry2007，40，： | 1 |
| 18 | Determination of cadmium and lead in table salt by sequential multi-element flame atomic absorption spectrometry显示文摘 | FABIO A C AMORIM SERGIO L C | 2005 | Talanta2005，65，： | 1 |
| 19 | Transcatheter arterial chemoembolization (TACE) in hepatocellular carcinoma (HCC): the role of angiogenesis and invasiveness显示文摘 | SERGIO A CRISTOFORI C CARDIN R | 2008 | Am J Gastr- centero2008，103，3： | 1 |
| 20 | Distribution of trace metals in moss biomonitors and assessment of contamination sources in Portugal显示文摘 | Figueira R Sergio C Sousa A J | 2002 | Environmental Pollution2002，118，1： | 1 |
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