A novel programmable lysozyme-based lysis system in Pseudomonas putida for biopolymer production

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dc.contributor.authorBorrero de Acuña, J.M.
dc.contributor.authorHidalgo-Dumont, C.
dc.contributor.authorPacheco, N.
dc.contributor.authorCabrera, A.
dc.contributor.authorPoblete-Castro, I.
dc.date.accessioned2017-12-13T16:54:32Z
dc.date.available2017-12-13T16:54:32Z
dc.date.issued2017-06
dc.descriptionIndexación: Scopus; Web of Science.es_CL
dc.description.abstractCell lysis is crucial for the microbial production of industrial fatty acids, proteins, biofuels, and biopolymers. In this work, we developed a novel programmable lysis system based on the heterologous expression of lysozyme. The inducible lytic system was tested in two Gram-negative bacterial strains, namely Escherichia coli and Pseudomonas putida KT2440. Before induction, the lytic system did not significantly arrest essential physiological parameters in the recombinant E. coli (ECPi) and P. putida (JBOi) strain such as specific growth rate and biomass yield under standard growth conditions. A different scenario was observed in the recombinant JBOi strain when subjected to PHA-producing conditions, where biomass production was reduced by 25% but the mcl-PHA content was maintained at about 30% of the cell dry weight. Importantly, the genetic construct worked well under PHA-producing conditions (nitrogen-limiting phase), where more than 95% of the cell population presented membrane disruption 16 h post induction, with 75% of the total synthesized biopolymer recovered at the end of the fermentation period. In conclusion, this new lysis system circumvents traditional, costly mechanical and enzymatic cell-disrupting procedures.es_CL
dc.description.urihttps://www.nature.com/articles/s41598-017-04741-2.pdf
dc.identifier.citationScientific Reports. Volume 7, Issue 1, 1 December 2017, Article number 4741es_CL
dc.identifier.issn2045-2322
dc.identifier.otherdoi:10.1038/s41598-017-04741-2
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/4877
dc.language.isoenes_CL
dc.publisherNature Publishing Groupes_CL
dc.titleA novel programmable lysozyme-based lysis system in Pseudomonas putida for biopolymer productiones_CL
dc.typeArtículoes_CL
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