http://hdl.handle.net/10553/3 Thu, 23 May 2013 20:09:05 GMT 2013-05-23T20:09:05Z http://hdl.handle.net/10553/7757 Título : Behavior of respiratory metabolism and pyridine nucleotide levels in Oxyrrhis marina during starvation Autor : Osma, Natalia Resumen : [EN]Respiration in eukaryotes is a physiological process that occurs wherever the oxygen and organic matter are present. Respiration is oxygen consumption (RO2) catalyzed by the respiratory electron transport system (ETS) enzymes. The physiological RO2 rate depends directly on the enzymatic control of the respiratory ETS activity. According to Packard et al. (1996), we argue that substrate availability is the most probable regulatory mechanism controlling this activity. The major ETS substrates are the pyridine nucleotides (PNs) and they occur as nicotine adenine dinucleotide (NAD) and as nicotine adenine dinucleotide phosphate (NADP). Up to now, no studies have quantified their intracellular concentrations in a marine dinoflagellate. Oxyrrhis marina is a microheterotrophic marine dinoflagellate which has been widely investigated. Nevertheless, no study has characterized its respiratory metabolism from measurements of oxygen consumption (RO2) and ETS activity. For this reason, our main objectives were 1) to measure RO2 and ETS activity in O. marina and to determine their behavior during starvation, and 2) to quantify the PN levels during the same period. To achieve these objectives, we fed O. marina ad libitum and then we monitored the ETS, RO2, protein and PN levels for 17 days. Fri, 01 Jan 2010 00:00:00 GMT http://hdl.handle.net/10553/7757 2010-01-01T00:00:00Z http://hdl.handle.net/10553/4719 Título : La escultura pública en Gran Canaria entre 1980 y 2010 Autor : Navarro Betancor, Sebastián M. Resumen : Tratado, principalmente de la escultura de ámbito o acceso público, colocada en Gran Canaria entre 1980 y 2010. Comprende todos los escultores, ordenados por los procedimientos escultóricos utilizados, y se describen éstos. Wed, 19 Jan 2011 00:00:00 GMT http://hdl.handle.net/10553/4719 2011-01-19T00:00:00Z http://hdl.handle.net/10553/4492 Título : Gestión costera en relación con los pequeños asentamientos litorales no ordenados Autor : Martínez-Castellanos, Francisco José Resumen : Estudio de la problemática de la gestión costera en asentamientos ilegales de la franja marítima de la costa Este de Gran Canaria Thu, 01 Jan 2009 00:00:00 GMT http://hdl.handle.net/10553/4492 2009-01-01T00:00:00Z http://hdl.handle.net/10553/4493 Título : El litoral como área de gestión integrada. Costas Norte y Este de Gran Canaria Autor : Martínez-Castellanos, Francisco José Resumen : Análisis de la gestión integrada aplicable a las costas Norte y Este de Gran Canaria Fri, 01 Jan 2010 00:00:00 GMT http://hdl.handle.net/10553/4493 2010-01-01T00:00:00Z