http://hdl.handle.net/10362/3388 2013-06-20T01:25:17Z 2013-06-20T01:25:17Z Venceslau, Sofia Cristina dos Santos http://hdl.handle.net/10362/9779 2013-06-04T14:33:47Z 2011-12-01T00:00:00Z

Title: Electron transfer chains in sulfate reducing bacteria Authors: Venceslau, Sofia Cristina dos Santos Abstract: The dissimilatory reduction of sulfur compounds (i.e.sulfate/sulfite reduction and sulfur disproportionation) is considered to have been one of the earliest metabolic processes on Earth able to sustain life. Dissimilatory sulfate reduction, using sulfate as an electron acceptor and organic compounds or hydrogen as electron donors, plays a significant role in the global sulfur and carbon cycles.(...) Description: Dissertação para a obtenção de grau de doutor em Bioquímica pelo Instituto de Tecnologia Química e Biológica. Universidade Nova de Lisboa.

2011-12-01T00:00:00Z Silva, Sofia M. da http://hdl.handle.net/10362/6851 2012-01-20T16:40:51Z 2011-09-01T00:00:00Z

Title: Formate metabolism in sulfate reducing bacteria Authors: Silva, Sofia M. da Abstract: Sulfate reduction is a very ancient metabolic process and it is responsible for more than 50% of carbon mineralization in anaerobic marine sediments. Sulfate-reducing organisms (SRO) are able to couple the reduction of sulfate to the oxidation of organic compounds, such as lactate or formate, or molecular hydrogen (H2), in order to obtain energy for cell synthesis and growth. Despite recent significant advances, a lot remains to be known about the mechanisms for energy conservation in SRO, and the specific components involved in those mechanisms. Formate and hydrogen are two abundant metabolites in SRO habitats, usually formed as fermentation products of other organisms. However, while the role of hydrogen and hydrogenases in anaerobic metabolism has been intensively studied over the years, formate has not received the same attention as an equally important metabolite.(...) Description: Dissertation presented to obtain the Ph.D degree in Biochemistry

2011-09-01T00:00:00Z Cruz, H. J. Dias, E. M. Peixoto, C. M. Moreira, J. L. Carrondo, Manuel J. T. http://hdl.handle.net/10362/5973 2013-01-18T15:35:46Z 2000-01-01T00:00:00Z

Title: Product quality of a recombinant fusion protein expressed in immobilised baby hamster kidney cells grown in protein-free medium Authors: Cruz, H. J.; Dias, E. M.; Peixoto, C. M.; Moreira, J. L.; Carrondo, Manuel J. T.

2000-01-01T00:00:00Z