Listar por autor "Rioboo, Carmen"
Mostrando ítems 1-20 de 26
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Acute effects of a prooxidant herbicide on the microalga Chlamydomonas reinhardtii: Screening cytotoxicity and genotoxicity endpoints
Esperanza, Marta; Cid, Ángeles; Herrero, Concepción; Rioboo, Carmen (Elsevier, 2015-08)Since recent evidence has demonstrated that many types of chemicals exhibit oxidative and/or genotoxic potential on living organisms, reactive oxygen species (ROS) formation and DNA damage are currently the best accepted ... -
Alteration of photosynthesis related parameters of Chlamydomonas moewusii stressed by paraquat
Cid, Ángeles; Franqueira, Dolores; Rioboo, Carmen; Prado, Raquel; Herrero, Concepción (Research Trends, 2008)Paraquat toxic action on the freshwater microalga Chlamydomonas moewusii was determined by several physiological parameters. ATP content seems to be the most sensitive parameter analyzed; it was reduced by the lowest ... -
Astaxanthin Production in Cysts and Vegetative Cells of the Microalga Haematococcus Pluvialis Flotow
Herrero, Concepción; Orosa García, Miguel; Abalde, Julio; Rioboo, Carmen; Cid, Ángeles (Nova Science Publishers, 2012) -
Atrazine induced changes in elemental and biochemical composition and nitrate reductase activity in Chlamydomonas reinhardtii
Fernández-Naveira, Ánxela; Rioboo, Carmen; Cid, Ángeles; Herrero, Concepción (Taylor & Francis, 2016)Herbicides play an important role in agricultural practices but the introduction of these compounds into the aquatic environment can have severe consequences for non-target organisms such as microalgae. The ubiquitous green ... -
Atrazine-Induced Chlorosis in Synechococcus elongatus Cells
González Barreiro, Óscar; Rioboo, Carmen; Cid, Ángeles; Herrero, Concepción (Springer, 2004)The effects of a widely used herbicide, atrazine, on the freshwater cyanobacterium Synechococcus elongatus were studied. The cyanobacteria were exposed to varying concentrations of atrazine (0.025, 0.05, 0.1, 0.25, and ... -
Cell proliferation alterations in Chlorella cells under stress conditions
Rioboo, Carmen; O’Connor, José Enrique; Prado, Raquel; Herrero, Concepción; Cid, Ángeles (2009-09)[Abstract]Very little is known about growth and proliferation in relation to the cell cycle regulation of algae. The lack of knowledge is even greater when referring to the potential toxic effects of pollutants on microalgal ... -
Characterization of cell response in Chlamydomonas moewusiicultures exposed to the herbicide paraquat: Induction of chlorosis
Prado, Raquel; Rioboo, Carmen; Herrero, Concepción; Cid, Ángeles (2011-03)[Abstract] The use of herbicides constitutes the principal method of weed control, but the introduction of these compounds into the aquatic environment can provoke severe consequences for non-target organisms such as ... -
Chlamydomonas Reinhardtii Cells Adjust the Metabolism to Maintain Viability in Response to Atrazine Stress
Esperanza, Marta; Seoane, Marta; Rioboo, Carmen; Herrero, Concepción; Cid, Ángeles (Elsevier, 2015-05-19)[Abstract] Chlamydomonas reinhardtii cells were exposed to a sublethal concentration of the widespread herbicide atrazine for 3 and 24 h. Physiological parameters related to cellular energy status, such as cellular ... -
Comparison of the sensitivity of different toxicity test endpoints in a microalga exposed to the herbicide paraquat
Prado, Raquel; García Díaz, Rosa; Rioboo, Carmen; Herrero, Concepción; Abalde, Julio; Cid, Ángeles (2009-02)[Abstract]The use of herbicides constitutes the principal method of weed control but the introduction of these compounds into the aquatic environment can provoke severe consequences for non-target organisms such as microalgae. ... -
Cytotoxic effects of pesticides on microalgae determined by flow cytometry
Rioboo, Carmen; Prado, Raquel; Herrero, Concepción; Cid, Ángeles (Nova Science Publishers, 2009)As much as ca. 99.7% of the applied load of pesticides is dispersed in the environment, not reaching the target pests. In this way, pesticides enter into aquatic ecosystems from agricultural runoff or leaching and, as a ... -
Cytotoxicity of BP-3 and BP-4: Blockage of Extrusion Pumps, Oxidative Damage and Programmed Cell Death on Chlamydomonas reinhardtii
Anido Varela, Laura; Seoane, Marta; Esperanza, Marta; Cid, Ángeles; Rioboo, Carmen (Elsevier, 2022-09-07)[Abstract] The health concern associated with the dangers related to exposure to UV radiation has led to an increase in the use of sunscreens containing UV-filters that can reach aquatic environments and possibly affect ... -
Early alterations on photosynthesis-related parameters in Chlamydomonas reinhardtii cells exposed to atrazine: A multiple approach study
Esperanza, Marta; Seoane, Marta; Rioboo, Carmen; Herrero, Concepción; Cid, Ángeles (Elsevier, 2016-06-01)Chlamydomonas reinhardtii cells were exposed to a sublethal concentration of thewidespread herbicide atrazine for 3 h. Physiological cellular parameters, such as chlorophyll a fluorescence and oxidative stress monitored ... -
Flow cytometric analysis of the encystment process induced by paraquat exposure in Haematococcus pluvialis (Chlorophyceae)
Rioboo, Carmen; González-Barreiro, Óscar; Abalde, Julio; Cid, Ángeles (Taylor & Francis, 2011)The freshwater microalga Haematococcus pluvialis exhibits a unique morphological response to environmental stress, accumulating carotenoid pigment during encystment. The complexity of characterizing the different cell ... -
Flow cytometric analysis to evaluate physiological alterations in herbicide-exposed Chlamydomonas moewusii cells
Prado, Raquel; Rioboo, Carmen; Herrero, Concepción; Suárez-Bregua, Paula; Cid, Ángeles (Springer, 2012-03)Investigation of herbicide toxicology in non-target aquatic primary producers such as microalgae is of great importance from an ecological point of view. In order to study the toxicity of the widely used herbicide paraquat ... -
Flow cytometric assay to assess short-term effects of personal care products on the marine microalga Tetraselmis suecica
Seoane, Marta; Esperanza, Marta; Rioboo, Carmen; Herrero, Concepción; Cid, Ángeles (Elsevier, 2017)[Abstract] Large quantities of personal care products (PCPs) are used daily and many of their chemical ingredients are subsequently released into marine environments. Cultures of the marine microalga Tetraselmis suecica ... -
Microalgal Bioassays as a Test of Pesticide Photodegradation Efficiency in Water
Rioboo, Carmen; Franqueira, Dolores; Canle, Moisés; Herrero, Concepción; Cid, Ángeles (Springer, 2001-08) -
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 ... -
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. ... -
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 ...