Proteínas de Bacillus Pumilus envolvidas na degradação de petróleo e diesel.

Abstract

The ever increasing consumption of fossil fuels puts oil as one of the most important products of human consumption. Undeniable technological and even social breakthroughs are coming era of "post-oil" . But this unbridled consumption has led to serious environmental aquatic ecosystems and land damage. Viable alternatives that promote the recovery of areas affected by these compounds are undoubtedly of utmost importance given the current scenario. Bioremediation has proven very promising in this area . And increasingly, new technology are aggregated to this field of research in an attempt to obtain more conclusive results, thus improving the overall understanding of how microorganisms interact in promoting bioremediation. This is precisely what has been proposed in this work. The use of Mass Spectrometry (MS) for identification of proteins of bacteria capable of growth in xenobiotics. Initially was selected near the Refinaria Isaac Sabbá (REMAN) species B. pumilus, with the potential ability to grow in petroleum and diesel. After conducting tests using oil and diesel separately with unique carbon sources, was proven capacity for growth of the species in these xenobiotics. Better growth/biomass production was recorded in crops having diesel as finte carbon, as well as the best protein yield. The proteomic profile in petroleum, diesel and yeast extract was determined. Comparisons between these profiles showed very marked difference between them. For analysis via mass spectrometry were selected 96 spots of B. pumilus were selected and identified by Peptide Mass Fingerprint (PMF) . Of this total 54 protein spots were identified. Some with potential involvement in direct bioremediation processes by B. pumilus. However, further studies are necessary to effective proof of proteins in the pathways of degradation of xenobiotics.