1
|
Assessing the genomic composition, putative ecological relevance and biotechnological potential of plasmids from sponge bacterial symbionts. Microbiol Res 2022; 265:127183. [PMID: 36108440 DOI: 10.1016/j.micres.2022.127183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 02/24/2022] [Accepted: 09/01/2022] [Indexed: 11/24/2022]
Abstract
Plasmid-mediated transfer of genes can have direct consequences in several biological processes within sponge microbial communities. However, very few studies have attempted genomic and functional characterization of plasmids from marine host-associated microbial communities in general and those of sponges in particular. In the present study, we used an endogenous plasmid isolation method to obtain plasmids from bacterial symbionts of the marine sponges Stylissa carteri and Paratetilla sp. and investigated the genomic composition, putative ecological relevance and biotechnological potential of these plasmids. In total, we isolated and characterized three complete plasmids, three plasmid prophages and one incomplete plasmid. Our results highlight the importance of plasmids to transfer relevant genetic traits putatively involved in microbial symbiont adaptation and host-microbe and microbe-microbe interactions. For example, putative genes involved in bacterial response to chemical stress, competition, metabolic versatility and mediation of bacterial colonization and pathogenicity were detected. Genes coding for enzymes and toxins of biotechnological potential were also detected. Most plasmid prophage coding sequences were, however, hypothetical proteins with unknown functions. Overall, this study highlights the ecological relevance of plasmids in the marine sponge microbiome and provides evidence that plasmids of sponge bacterial symbionts may represent an untapped resource of genes of biotechnological interest.
Collapse
|
2
|
Bachosz K, Piasecki A, Zdarta A, Kaczorek E, Pinelo M, Zdarta J, Jesionowski T. Enzymatic membrane reactor in xylose bioconversion with simultaneous cofactor regeneration. Bioorg Chem 2022; 123:105781. [PMID: 35395447 DOI: 10.1016/j.bioorg.2022.105781] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 12/22/2022]
Abstract
In this study, we present the concept of co-immobilization of xylose dehydrogenase and alcohol dehydrogenase from Saccharomyces cerevisiae on an XN45 nanofiltration membrane for application in the process of xylose bioconversion to xylonic acid with simultaneous cofactor regeneration and membrane separation of reaction products. During the research, the effectiveness of the co-immobilization of enzymes was confirmed, and changes in the properties of the membrane after the processes were determined. Using the obtained biocatalytic system it was possible to obtain 99% xylonic acid production efficiency under optimal conditions, which were 5 mM xylose, 5 mM formaldehyde, ratio of NAD+:NADH 1:1, and 60 min of reaction. Additionally, the co-immobilization of enzymes made it possible to improve stability of the co-immobilized enzymes and to carry out xylose conversion in six consecutive cycles and after 7 days of storage at 4 °C with over 90% efficiency. The presented data confirm the effectiveness of the co-immobilization, improvement of the stability and reusability of the biocatalysts, and show that the obtained enzymatic system is promising for use in xylose bioconversion and simultaneous regeneration of nicotinamide cofactor.
Collapse
Affiliation(s)
- Karolina Bachosz
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
| | - Adam Piasecki
- Institute of Materials Science and Engineering, Faculty of Mechanical Engineering and Management, Poznan University of Technology, Jana Pawla II 24, PL-60965 Poznan, Poland.
| | - Agata Zdarta
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
| | - Ewa Kaczorek
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
| | - Manuel Pinelo
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Soltofts Plads, Building 227, DK-2800 Kongens Lyngby, Denmark.
| | - Jakub Zdarta
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
| |
Collapse
|
3
|
Zhan J, Shou C, Zheng Y, Chen Q, Pan J, Li C, Xu J. Discovery and Engineering of Bacterial (−)‐Isopiperitenol Dehydrogenases to Enhance (−)‐Menthol Precursor Biosynthesis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jing‐Ru Zhan
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Chao Shou
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Yu‐Cong Zheng
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Qi Chen
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
- Shanghai Collaborative Innovation Center for Biomanufacturing School of Biotechnology East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Jiang Pan
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
- Shanghai Collaborative Innovation Center for Biomanufacturing School of Biotechnology East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Chun‐Xiu Li
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
- Shanghai Collaborative Innovation Center for Biomanufacturing School of Biotechnology East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Jian‐He Xu
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
- Shanghai Collaborative Innovation Center for Biomanufacturing School of Biotechnology East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| |
Collapse
|
4
|
Efficient whole-cell biosynthesis of l-gulose by coupling mannitol-1-dehydrogenase with NADH oxidase. Enzyme Microb Technol 2021; 148:109815. [PMID: 34116746 DOI: 10.1016/j.enzmictec.2021.109815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/26/2020] [Accepted: 05/01/2021] [Indexed: 12/24/2022]
Abstract
L-Gulose is a rare aldohexose to serve as a building block for anticancer drug bleomycin and nucleoside-based antivirals. However, preparative inaccessibility and high cost have hindered its pharmaceutical application. Despite a regio- and stereo-selective enzymatic synthesis of l-gulose from d-sorbitol using a variant of NAD+-dependent mannitol-1-dehydrogenase from Apium graveolens (mMDH) was explored, low efficiency and productivity caused by NADH accumulation or insufficient amount of NAD+ limited the practical utility of this process. In this study, a stable and efficient NADH oxidase from Bacillus cereus (bcNOX) was found to be more compatible with mMDH to recycle NAD+ in E. coli cells for l-gulose biosynthesis. After a systematic optimization of the whole-cell system, efficient biosynthesis of l-gulose was achieved. Starting with 70 g/L of readily available and cheap d-sorbitol resulted in a volumetric productivity of 5.5 g/L/d. This whole-cell approach enables practical, efficient and environmentally friendly biosynthesis of l-gulose and exhibits the potential of becoming a biocatalytic strategy for various enzymatic oxidative transformations.
Collapse
|
5
|
Höhnemann T, Steinmann M, Schindler S, Hoss M, König S, Ota A, Dauner M, Buchmeiser MR. Poly(Ethylene Furanoate) along Its Life-Cycle from a Polycondensation Approach to High-Performance Yarn and Its Recyclate. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1044. [PMID: 33672140 PMCID: PMC7926444 DOI: 10.3390/ma14041044] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/05/2021] [Accepted: 02/15/2021] [Indexed: 01/06/2023]
Abstract
We report on the pilot scale synthesis and melt spinning of poly(ethylene furanoate) (PEF), a promising bio-based fiber polymer that can heave mechanical properties in the range of commercial poly(ethylene terephthalate) (PET) fibers. Catalyst optimization and solid state polycondensation (SSP) allowed for intrinsic viscosities of PEF of up to 0.85 dL·g-1. Melt-spun multifilament yarns reached a tensile strength of up to 65 cN·tex-1 with an elongation of 6% and a modulus of 1370 cN·tex-1. The crystallization behavior of PEF was investigated by differential scanning calorimetry (DSC) and XRD after each process step, i.e., after polymerization, SSP, melt spinning, drawing, and recycling. After SSP, the previously amorphous polymer showed a crystallinity of 47%, which was in accordance with literature. The corresponding XRD diffractograms showed signals attributable to α-PEF. Additional, clearly assignable signals at 2θ > 30° are discussed. A completely amorphous structure was observed by XRD for as-spun yarns, while a crystalline phase was detected on drawn yarns; however, it was less pronounced than for the granules and independent of the winding speed.
Collapse
Affiliation(s)
| | - Mark Steinmann
- Correspondence: (M.S.); (M.D.); Tel.: +49-711-9430-274 (M.S.); +49-711-9430-218 (M.D.)
| | | | | | | | | | - Martin Dauner
- Correspondence: (M.S.); (M.D.); Tel.: +49-711-9430-274 (M.S.); +49-711-9430-218 (M.D.)
| | | |
Collapse
|
6
|
Beer B, Pick A, Döring M, Lommes P, Sieber V. Substrate scope of a dehydrogenase from Sphingomonas species A1 and its potential application in the synthesis of rare sugars and sugar derivatives. Microb Biotechnol 2018; 11:747-758. [PMID: 29697194 PMCID: PMC6011931 DOI: 10.1111/1751-7915.13272] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 03/31/2018] [Accepted: 04/02/2018] [Indexed: 12/24/2022] Open
Abstract
Rare sugars and sugar derivatives that can be obtained from abundant sugars are of great interest to biochemical and pharmaceutical research. Here, we describe the substrate scope of a short‐chain dehydrogenase/reductase from Sphingomonas species A1 (SpsADH) in the oxidation of aldonates and polyols. The resulting products are rare uronic acids and rare sugars respectively. We provide insight into the substrate recognition of SpsADH using kinetic analyses, which show that the configuration of the hydroxyl groups adjacent to the oxidized carbon is crucial for substrate recognition. Furthermore, the specificity is demonstrated by the oxidation of d‐sorbitol leading to l‐gulose as sole product instead of a mixture of d‐glucose and l‐gulose. Finally, we applied the enzyme to the synthesis of l‐gulose from d‐sorbitol in an in vitro system using a NADH oxidase for cofactor recycling. This study shows the usefulness of exploring the substrate scope of enzymes to find new enzymatic reaction pathways from renewable resources to value‐added compounds.
Collapse
Affiliation(s)
- Barbara Beer
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Schulgasse 16, 94315, Straubing, Germany
| | - André Pick
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Schulgasse 16, 94315, Straubing, Germany
| | - Manuel Döring
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Schulgasse 16, 94315, Straubing, Germany
| | - Petra Lommes
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Schulgasse 16, 94315, Straubing, Germany
| | - Volker Sieber
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Schulgasse 16, 94315, Straubing, Germany.,Catalysis Research Center, Technical University of Munich, Ernst-Otto-Fischer-Str. 1, 85748, Garching, Germany.,Fraunhofer Institute of Interfacial Engineering and Biotechnology (IGB), Bio-, Electro- and Chemo Catalysis (BioCat) Branch, Schulgasse 11a, Straubing, 94315, Germany.,School of Chemistry and Molecular Biosciences, The University of Queensland, 68 Cooper Road, St. Lucia, 4072, Qld, Australia
| |
Collapse
|