Listar GI-Microalgae - Artigos por autor "Herrero, Concepción"
Mostrando ítems 41-60 de 65
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Marine microalgae as a potential source of minerals in fish diets
Fábregas, Jaime; Herrero, Concepción (Elsevier, 1986-01)The incorporation of powdered marine microalgae in fish diets can substitute, at least in part, for the addition of minerals to the diet. In diets for freshwater fishes, the incorporation of 33% of powdered marine microalgae ... -
Marine microalgae as a potential source of single cell protein (SCP)
Fábregas, Jaime; Herrero, Concepción (Springer, 1985-12)[Abstract] The marine microalgae Tetraselmis suecica, Isochrysis galbana, Dunaliella tertiolecta and Chlorella stigmatophora are good biological sources of single cell protein (SCP). Protein content accounts for 39.12%–54.20% ... -
Mass culture and biochemical variability of the marine microalga Tetraselmis suecica Kylin (Butch) with high nutrient concentrations
Fábregas, Jaime; Herrero, Concepción; Cabezas, Buenaventura; Abalde, Julio (Elsevier Science Publishers, 1985)Mass cultures of Tetraselmis suecica were carried out with four nutrient concentrations, ranging from 2 to 16 mM of NaNO3 and salinity 35‰. An air flow of 15 l/min maintained a CO2 transference rate sufficient to keep the ... -
Microalgal Bioassays as a Test of Pesticide Photodegradation Efficiency in Water
Rioboo, Carmen; Franqueira, Dolores; Canle, Moisés; Herrero, Concepción; Cid, Ángeles (Springer, 2001-08) -
Nutritional properties of four marine microalgae for albino rats
Herrero, Concepción; Abalde, Julio; Fábregas, Jaime (Springer, 1993-12)The nutritive value of the marine microalgaeTetraselmis suecica, Isochrysis galbana, Dunaliella tertiolecta and Chlorella stigmatophora was studied in diets given to rats. Biological assays were carried out in order to ... -
Physiological response of freshwater microalga (Chlorella vulgaris) to triazine and phenylurea herbicides
Rioboo, Carmen; González Barreiro, Óscar; Herrero, Concepción; Cid, Ángeles (2002-09)[Abstract]The effects of two herbicides used wide-spread, isoproturon (phenylurea) and terbutryn (triazine), on growth, dry weight, elemental composition, photosynthetic pigments and protein content, and cell volume assayed ... -
Population growth study of the rotifer Brachionus sp. fed with triazine-exposed microalgae
Rioboo, Carmen; Prado, Raquel; Herrero, Concepción; Cid, Ángeles (2007-08)[Abstract]Few data exist on potential toxic effects that pollutants may have on zooplankton fed microalgae exposed to pesticides. For that reason, microalgal cultures were exposed to different concentrations of the triazine ... -
Potential use of flow cytometry in toxicity studies with microalgae
Franqueira, Dolores; Orosa García, Miguel; Torres, Enrique; Herrero, Concepción; Cid, Ángeles (2000-03)[Abstract]Cytotoxic effects of aquatic pollutants on microalgae are very heterogeneous, and they are influenced by environmental conditions and the test species. Stress produced by copper or paraquat addition to the culture ... -
Removal of cadmium ions by the marine diatom Phaeodactylum tricornutum Bohlin accumulation and long-term kinetics of uptake
Torres, Enrique; Cid, Ángeles; Herrero, Concepción; Abalde, Julio (Elsevier, 1998-03)The marine diatom Phaeodactylum tricornutum Bohlin was exposed to different cadmium concentrations (1–100 mg l−1) for 4 days. The amount of cadmium removed was recorded, with particular attention paid to long-term uptake ... -
Removal of triazine herbicides from freshwater systems using photosynthetic microorganisms
González Barreiro, Óscar; Rioboo, Carmen; Herrero, Concepción; Cid, Ángeles (2006-11)[Abstract]The uptake of the triazine herbicides, atrazine and terbutryn, was determined for two freshwater photosynthetic microorganisms, the green microalga Chlorella vulgaris and the cyanobacterium Synechococcus elongatus. ... -
Response of the marine microalga Dunaliella tertiolecta (Chlorophyceae) to copper toxicity in short time experiments
Abalde, Julio; Cid, Ángeles; Reiriz, S.; Torres, Enrique; Herrero, Concepción (Springer, 1995-02)Heavy metals are introduced into aquatic ecosystems from industrial wastes, agricultural runoff and mining activities. The toxicity of heavy metal ions in solution to microalgae is well known. The essentiality and toxicity ... -
Response of the Marine Microalga Dunaliella tertiolecta to Nutrient Concentration and Salinity Variations in Batch Cultures
Fábregas, Jaime; Herrero, Concepción; Cabezas, Buenaventura; Liaño, Rosa; Abalde, Julio (Gustav Fisher Verlag, 1986)The marine microalga Dunaliella tertiolecta is known for its ability to tolerate a wide range of salt concentrations. Cultures were grown under 56 different nutrient concentration-salinity conditions. Optimal growth ... -
Riboflavin enrichment throughout the food chain from the marine microalga Tetraselmis suecica to the rotifer Brachionus plicatilis and to White Sea Bream (Diplodus sargus) and Gilthead Sea bream (Sparus aurata) larvae
Souto Alonso, Maria; Saavedra, M.; Pousao-Ferreira, P.; Herrero, Concepción (2008-10)[Abstract]The riboflavin enrichment of the marine microalga Tetraselmis suecica and the transfer of this vitamin to higher trophic levels of the aquatic food chain such as the rotifer Brachionus plicatilis and the larvae ... -
Screening acute cytotoxicity biomarkers using a microalga as test organism
Prado, Raquel; Rioboo, Carmen; Herrero, Concepción; Cid, Ángeles (Elsevier, 2012-12)The present study checked the suitability of the integration of flow cytometry (FCM) as technique and a freshwater microalga (Chlamydomonas moewusii) as cell system model for ecotoxicological studies, looking for sensitive ... -
Sorption isotherm studies of Cd(II) ions using living cells of the marine microalga Tetraselmis suecica (Kylin) Butch
Pérez Rama, Mónica; Torres, Enrique; Suárez, Cristina; Herrero, Concepción; Abalde, Julio (2010-10)[Abstract]The present work reports the use of living cells of the marine microalga Tetraselmis suecica for the biosorption of cadmium ions. For a better understanding of the biosorption characteristics, three fractions of ... -
Suitability of cytotoxicity endpoints and test microalgal species to disclose the toxic effect of common aquatic pollutants
Prado, Raquel; García Díaz, Rosa; Rioboo, Carmen; Herrero, Concepción; Cid, Ángeles (Elsevier, 2015-04)Pulse discharges of chemicals to aquatic environments may lead to high concentrations of them in surface waters for short periods of time, but enough to induce toxic effects on aquatic organisms; however, no many methods ... -
The herbicide paraquat induces alterations in the elemental and biochemical composition of non-target microalgal species
Prado, Raquel; Rioboo, Carmen; Herrero, Concepción; Cid, Ángeles (2009-09)[Abstract]Huge quantities of pesticides are dispersed in the environment, affecting non-target organisms. Since paraquat affects the photosynthetic process, the biochemical composition of affected species should be altered. ... -
The marine microalga Chlorella stigmatophora as a potential source of single cell protein: Enhancement of the protein content in response to nutrient enrichment
Fábregas, Jaime; Herrero, Concepción; Abalde, Julio; Cabezas, Buenaventura (Elsevier, 1986)Mass cultures of Chlorella stigmatophora were carried out in order to obtain maximum protein production and to study the chemical variations in function of the nutrient concentration. Cultures reached maximum cellular ... -
Tolerance and detoxification mechanisms in marine diatom Phaeodactylum tricornutum exposed to cadmium
Torres, Enrique; Cid, Ángeles; Fidalgo Paredes, Pablo; Herrero, Concepción; Abalde, Julio (Springer, 1995)Tolerance is one of the most important mechanisms for survival. Organisms living in polluted environments with heavy metals develop tolerance to these contaminants; this tolerance has been attributed to the ability to ... -
Toxic action of copper on the membrane system of a marine diatom measured by flow cytometry
Cid, Ángeles; Fidalgo Paredes, Pablo; Herrero, Concepción; Abalde, Julio (WILEY-Liss, 1996-09)Flow cytometric measurements were used to investigate the toxic action of copper on some Phaeodactylum tricornutum membrane systems. Throughout the time of metal exposure, the percentage of viable cells decreased as copper ...