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Improved p-hydroxybenzoate production by engineered Pseudomonas putida S12 by using a mixed-substrate feeding strategy

The key precursors for p-hydroxybenzoate production by engineered Pseudomonas putida S12 are phosphoenolpyruvate (PEP) and erythrose-4-phosphate (E4P), for which the pentose phosphate (PP) pathway is an important source. Since PP pathway fluxes are typically low in pseudomonads, E4P and PEP availabi...

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Autores principales: Meijnen, Jean-Paul, Verhoef, Suzanne, Briedjlal, Ashwin A., de Winde, Johannes H., Ruijssenaars, Harald J.
Formato: Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3076579/
https://www.ncbi.nlm.nih.gov/pubmed/21287166
http://dx.doi.org/10.1007/s00253-011-3089-6
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author Meijnen, Jean-Paul
Verhoef, Suzanne
Briedjlal, Ashwin A.
de Winde, Johannes H.
Ruijssenaars, Harald J.
author_facet Meijnen, Jean-Paul
Verhoef, Suzanne
Briedjlal, Ashwin A.
de Winde, Johannes H.
Ruijssenaars, Harald J.
author_sort Meijnen, Jean-Paul
collection PubMed
description The key precursors for p-hydroxybenzoate production by engineered Pseudomonas putida S12 are phosphoenolpyruvate (PEP) and erythrose-4-phosphate (E4P), for which the pentose phosphate (PP) pathway is an important source. Since PP pathway fluxes are typically low in pseudomonads, E4P and PEP availability is a likely bottleneck for aromatics production which may be alleviated by stimulating PP pathway fluxes via co-feeding of pentoses in addition to glucose or glycerol. As P. putida S12 lacks the natural ability to utilize xylose, the xylose isomerase pathway from E. coli was introduced into the p-hydroxybenzoate producing strain P. putida S12palB2. The initially inefficient xylose utilization was improved by evolutionary selection after which the p-hydroxybenzoate production was evaluated. Even without xylose-co-feeding, p-hydroxybenzoate production was improved in the evolved xylose-utilizing strain, which may indicate an intrinsically elevated PP pathway activity. Xylose co-feeding further improved the p-hydroxybenzoate yield when co-fed with either glucose or glycerol, up to 16.3 Cmol% (0.1 g p-hydroxybenzoate/g substrate). The yield improvements were most pronounced with glycerol, which probably related to the availability of the PEP precursor glyceraldehyde-3-phosphate (GAP). Thus, it was demonstrated that the production of aromatics such as p-hydroxybenzoate can be improved by co-feeding different carbon sources via different and partially artificial pathways. Moreover, this approach opens new perspectives for the efficient production of (fine) chemicals from renewable feedstocks such as lignocellulose that typically has a high content of both glucose and xylose and (crude) glycerol.
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spelling pubmed-30765792011-05-23 Improved p-hydroxybenzoate production by engineered Pseudomonas putida S12 by using a mixed-substrate feeding strategy Meijnen, Jean-Paul Verhoef, Suzanne Briedjlal, Ashwin A. de Winde, Johannes H. Ruijssenaars, Harald J. Appl Microbiol Biotechnol Biotechnological Products and Process Engineering The key precursors for p-hydroxybenzoate production by engineered Pseudomonas putida S12 are phosphoenolpyruvate (PEP) and erythrose-4-phosphate (E4P), for which the pentose phosphate (PP) pathway is an important source. Since PP pathway fluxes are typically low in pseudomonads, E4P and PEP availability is a likely bottleneck for aromatics production which may be alleviated by stimulating PP pathway fluxes via co-feeding of pentoses in addition to glucose or glycerol. As P. putida S12 lacks the natural ability to utilize xylose, the xylose isomerase pathway from E. coli was introduced into the p-hydroxybenzoate producing strain P. putida S12palB2. The initially inefficient xylose utilization was improved by evolutionary selection after which the p-hydroxybenzoate production was evaluated. Even without xylose-co-feeding, p-hydroxybenzoate production was improved in the evolved xylose-utilizing strain, which may indicate an intrinsically elevated PP pathway activity. Xylose co-feeding further improved the p-hydroxybenzoate yield when co-fed with either glucose or glycerol, up to 16.3 Cmol% (0.1 g p-hydroxybenzoate/g substrate). The yield improvements were most pronounced with glycerol, which probably related to the availability of the PEP precursor glyceraldehyde-3-phosphate (GAP). Thus, it was demonstrated that the production of aromatics such as p-hydroxybenzoate can be improved by co-feeding different carbon sources via different and partially artificial pathways. Moreover, this approach opens new perspectives for the efficient production of (fine) chemicals from renewable feedstocks such as lignocellulose that typically has a high content of both glucose and xylose and (crude) glycerol. Springer Berlin Heidelberg 2011-02-02 2011 /pmc/articles/PMC3076579/ /pubmed/21287166 http://dx.doi.org/10.1007/s00253-011-3089-6 Text en © The Author(s) 2011 Open AccessThis is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Biotechnological Products and Process Engineering
Meijnen, Jean-Paul
Verhoef, Suzanne
Briedjlal, Ashwin A.
de Winde, Johannes H.
Ruijssenaars, Harald J.
Improved p-hydroxybenzoate production by engineered Pseudomonas putida S12 by using a mixed-substrate feeding strategy
title Improved p-hydroxybenzoate production by engineered Pseudomonas putida S12 by using a mixed-substrate feeding strategy
title_full Improved p-hydroxybenzoate production by engineered Pseudomonas putida S12 by using a mixed-substrate feeding strategy
title_fullStr Improved p-hydroxybenzoate production by engineered Pseudomonas putida S12 by using a mixed-substrate feeding strategy
title_full_unstemmed Improved p-hydroxybenzoate production by engineered Pseudomonas putida S12 by using a mixed-substrate feeding strategy
title_short Improved p-hydroxybenzoate production by engineered Pseudomonas putida S12 by using a mixed-substrate feeding strategy
title_sort improved p-hydroxybenzoate production by engineered pseudomonas putida s12 by using a mixed-substrate feeding strategy
topic Biotechnological Products and Process Engineering
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3076579/
https://www.ncbi.nlm.nih.gov/pubmed/21287166
http://dx.doi.org/10.1007/s00253-011-3089-6
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