1
|
Bitzenhofer NL, Höfel C, Thies S, Weiler AJ, Eberlein C, Heipieper HJ, Batra‐Safferling R, Sundermeyer P, Heidler T, Sachse C, Busche T, Kalinowski J, Belthle T, Drepper T, Jaeger K, Loeschcke A. Exploring engineered vesiculation by Pseudomonas putida KT2440 for natural product biosynthesis. Microb Biotechnol 2024; 17:e14312. [PMID: 37435812 PMCID: PMC10832525 DOI: 10.1111/1751-7915.14312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 06/25/2023] [Indexed: 07/13/2023] Open
Abstract
Pseudomonas species have become promising cell factories for the production of natural products due to their inherent robustness. Although these bacteria have naturally evolved strategies to cope with different kinds of stress, many biotechnological applications benefit from engineering of optimised chassis strains with specially adapted tolerance traits. Here, we explored the formation of outer membrane vesicles (OMV) of Pseudomonas putida KT2440. We found OMV production to correlate with the recombinant production of a natural compound with versatile beneficial properties, the tripyrrole prodigiosin. Further, several P. putida genes were identified, whose up- or down-regulated expression allowed controlling OMV formation. Finally, genetically triggering vesiculation in production strains of the different alkaloids prodigiosin, violacein, and phenazine-1-carboxylic acid, as well as the carotenoid zeaxanthin, resulted in up to three-fold increased product yields. Consequently, our findings suggest that the construction of robust strains by genetic manipulation of OMV formation might be developed into a useful tool which may contribute to improving limited biotechnological applications.
Collapse
Affiliation(s)
- Nora Lisa Bitzenhofer
- Institute of Molecular Enzyme Technology (IMET)Heinrich Heine University DüsseldorfDüsseldorfGermany
| | - Carolin Höfel
- Institute of Molecular Enzyme Technology (IMET)Heinrich Heine University DüsseldorfDüsseldorfGermany
| | - Stephan Thies
- Institute of Molecular Enzyme Technology (IMET)Heinrich Heine University DüsseldorfDüsseldorfGermany
| | - Andrea Jeanette Weiler
- Institute of Molecular Enzyme Technology (IMET)Heinrich Heine University DüsseldorfDüsseldorfGermany
| | - Christian Eberlein
- Department of Environmental BiotechnologyHelmholtz Centre for Environmental Research (UFZ)LeipzigGermany
| | - Hermann J. Heipieper
- Department of Environmental BiotechnologyHelmholtz Centre for Environmental Research (UFZ)LeipzigGermany
| | - Renu Batra‐Safferling
- Institute of Biological Information Processing – Structural Biochemistry (IBI‐7: Structural Biochemistry)Forschungszentrum JülichJülichGermany
| | - Pia Sundermeyer
- Ernst‐Ruska Centre for Microscopy and Spectroscopy with Electrons (ER‐C‐3/Structural Biology)Forschungszentrum JülichJülichGermany
- Institute for Biological Information Processing 6 (IBI‐6/ Structural Cellular Biology)Forschungszentrum JülichJülichGermany
| | - Thomas Heidler
- Ernst‐Ruska Centre for Microscopy and Spectroscopy with Electrons (ER‐C‐3/Structural Biology)Forschungszentrum JülichJülichGermany
- Institute for Biological Information Processing 6 (IBI‐6/ Structural Cellular Biology)Forschungszentrum JülichJülichGermany
| | - Carsten Sachse
- Ernst‐Ruska Centre for Microscopy and Spectroscopy with Electrons (ER‐C‐3/Structural Biology)Forschungszentrum JülichJülichGermany
- Institute for Biological Information Processing 6 (IBI‐6/ Structural Cellular Biology)Forschungszentrum JülichJülichGermany
- Department of BiologyHeinrich Heine University DüsseldorfDüsseldorfGermany
| | - Tobias Busche
- Center for Biotechnology (CeBiTec)Bielefeld UniversityBielefeldGermany
- Bielefeld University, Medical School East Westphalia‐LippeBielefeld UniversityBielefeldGermany
| | - Jörn Kalinowski
- Center for Biotechnology (CeBiTec)Bielefeld UniversityBielefeldGermany
| | - Thomke Belthle
- DWI─Leibniz‐Institute for Interactive MaterialsAachenGermany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityAachenGermany
| | - Thomas Drepper
- Institute of Molecular Enzyme Technology (IMET)Heinrich Heine University DüsseldorfDüsseldorfGermany
| | - Karl‐Erich Jaeger
- Institute of Molecular Enzyme Technology (IMET)Heinrich Heine University DüsseldorfDüsseldorfGermany
- Institute of Bio‐ and Geosciences IBG‐1: BiotechnologyForschungszentrum JülichJülichGermany
| | - Anita Loeschcke
- Institute of Molecular Enzyme Technology (IMET)Heinrich Heine University DüsseldorfDüsseldorfGermany
| |
Collapse
|
2
|
Zhang Y, Chung WK, Moon SH, Lee JG, Om AS. Comparison of Antibacterial Activities of Korean Pine ( Pinus densiflora) Needle Steam Distillation Extract on Escherichia coli and Staphylococcus aureus Focusing on Membrane Fluidity and Genes Involved in Membrane Lipids and Stress. Molecules 2023; 29:165. [PMID: 38202748 PMCID: PMC10779765 DOI: 10.3390/molecules29010165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/22/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024] Open
Abstract
The antibacterial activity and mechanism of Pinus densiflora extracts against Escherichia coli and Staphylococcus aureus were investigated. The growth inhibition tests of paper diffusion and optical density exhibited that the extracts have potent antibacterial potentials against foodborne pathogens. The measurement of membrane fluidity by fluorescence polarization has indicated that one of the antibacterial mechanisms involves the disruption of membrane integrity resulting in an increase in the membrane fluidity in both of E. coli and S. aureus. The alteration of fatty acid composition was accompanied by the disturbance of membranes thus shifting the proportion of saturated verses unsaturated fatty acids or trans fatty acids from 1.27:1 to 1.35:1 in E. coli and 1.47:1 to 2.31:1 in S. aureus, most likely to compensate for the increased membrane fluidity by means of a higher proportion of saturated fatty acids which is known to render rigidity in membranes. Realtime q-PCR (polymerase chain reaction) analysis of fatty acid synthetic genes and bacterial stress genes revealed that there was minimal influence of P. densiflora extracts on fatty acid genes except for fab I and the stress rpos in E. coli, and relatively greater impact on fatty acid genes and the stress sigB in S. aureus.
Collapse
Affiliation(s)
| | | | | | | | - Ae-Son Om
- Department of Food and Nutrition, Hanyang University, Seoul 04736, Republic of Korea; (Y.Z.); (W.-K.C.); (S.-H.M.); (J.-G.L.)
| |
Collapse
|
3
|
Liu W, Peng J, Zou S, Xu L, Cheng H, Wang Y, Chen Z, Zhou H. Regulation on Pathway Metabolic Fluxes to Enhance Colanic Acid Production in Escherichia coli. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:13857-13868. [PMID: 37688786 DOI: 10.1021/acs.jafc.3c05046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/11/2023]
Abstract
Colanic acid (CA) is a natural polysaccharide macromolecule with rich and unique biological properties and is a promising candidate for use in food and cosmetics. To date, the efficient biosynthesis of CA and the influence of product accumulation on the strains used have yet to be precisely investigated. Herein, bottlenecks in the CA metabolic pathway were untangled by finely regulating the expression of manA, cpsG, fcl, and rcsA. Engineered strains produced CA at >1 g/L in shake flasks without dependence on cold temperatures, and it was verified in a 1 L bioreactor with a titer up to 18.64 g/L within 24 h. The accumulation of CA caused a decrease in the saturated fatty acid content (represented by C16:0 and C18:0) in the cell membrane. This study demonstrated pathway engineering for efficient CA production in cell factories and provided insights into the barriers and solutions faced in the biosynthesis of natural products.
Collapse
Affiliation(s)
- Wenxian Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, P. R. China
| | - Jing Peng
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, P. R. China
| | - Sini Zou
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, P. R. China
| | - Liting Xu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, P. R. China
| | - Haina Cheng
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, P. R. China
- Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, Hunan 410083, P. R. China
| | - Yuguang Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, P. R. China
- Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, Hunan 410083, P. R. China
| | - Zhu Chen
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, P. R. China
- Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, Hunan 410083, P. R. China
| | - Hongbo Zhou
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, P. R. China
- Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, Hunan 410083, P. R. China
| |
Collapse
|
4
|
Chawley P, Jagadevan S. Biodegradation of quinoline by Nitrosomonas mobilis Ms1 through nitrification: A mechanistic study. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
|