Comprehensive analysis of a Metabolic Model for lipid production in Rhodosporidium toruloides

TítuloComprehensive analysis of a Metabolic Model for lipid production in Rhodosporidium toruloides
Tipo de PublicaciónJournal Article
Año de Publicación2018
AutoresCastañeda MT, Nuñez S, Garelli F, Voget C, De Battista H
JournalJournal of Biotechnology
Volumen280
Páginas11 - 18
ISSN0168-1656
Resumen

The yeast Rhodosporidium toruloides has been extensively studied for its application in biolipid production. The knowledge of its metabolism capabilities and the application of constraint-based flux analysis methodology provide useful information for process prediction and optimization. The accuracy of the resulting predictions is highly dependent on metabolic models. A metabolic reconstruction for R. toruloides metabolism has been recently published. On the basis of this model, we developed a curated version that unblocks the central nitrogen metabolism and, in addition, completes charge and mass balances in some reactions neglected in the former model. Then, a comprehensive analysis of network capability was performed with the curated model and compared with the published metabolic reconstruction. The flux distribution obtained by lipid optimization with Flux Balance Analysis was able to replicate the internal biochemical changes that lead to lipogenesis in oleaginous microorganisms. These results motivate the development of a genome-scale model for complete elucidation of R. toruloides metabolism.

DOI10.1016/j.jbiotec.2018.05.010
Líneas de investigación: 
Control and monitoring of bioprocesses
Control y monitoreo de bioprocesos