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Schilling J, Schmid J. Comprehensive rheological analysis of structurally related acetan-like heteroexopolysaccharides from two Kozakia baliensis strains in surfactants and galactomannan blends. N Biotechnol 2024; 82:75-84. [PMID: 38750817 DOI: 10.1016/j.nbt.2024.05.003] [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: 11/25/2023] [Revised: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 05/19/2024]
Abstract
Natural biopolymers become increasingly attractive as bio-based alternatives to petrol-based rheological modifiers, especially in personal care applications. However, many polysaccharides exhibit undesired properties in cosmetic applications such as limited viscosifying characteristics, unpleasant sensory properties, or incompatibility with certain formulation compounds. Here, a comprehensive rheological analysis of non-decorated acetan-like heteroexopolysaccharides derived from two Kozakia baliensis strains was performed in selected surfactant formulations. The results were compared to native xanthan gum and a genetically engineered xanthan variant, Xan∆gumFGL, which lacks any acetyl- and pyruvyl moieties and whose rheological properties are unaffected by saline environments. All four polysaccharides displayed a highly similar rheological performance in the non-ionic surfactant lauryl glucoside, while the rheological properties differed in amphoteric and anionic surfactants cocamidopropyl betaine and sodium laureth sulfate due to minor changes in side chain composition. Polysaccharide precipitation was observed in the presence of the cationic surfactant. Nevertheless, the native heteroexopolysaccharide derived from K. baliensis LMG 27018 shows significant potential as a salt-independent rheological modifier compared to the genetically engineered Xan∆gumFGL variant. In addition, blends of heteroexopolysaccharides from K. baliensis and several galactomannans displayed synergistic effects which were comparable to native xanthan gum-galactomannan blends. This study shows that heteroexopolysaccharides of K. baliensis are capable of further extending the portfolio of bio-based rheological modifiers.
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Affiliation(s)
- Julia Schilling
- Institute for Molecular Microbiology and Biotechnology, University of Münster, Corrensstrasse 3, 48149 Münster, Germany
| | - Jochen Schmid
- Institute for Molecular Microbiology and Biotechnology, University of Münster, Corrensstrasse 3, 48149 Münster, Germany.
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2
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Ravagnan G, Schmid J. Promising non-model microbial cell factories obtained by genome reduction. Front Bioeng Biotechnol 2024; 12:1427248. [PMID: 39161352 PMCID: PMC11330790 DOI: 10.3389/fbioe.2024.1427248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 06/12/2024] [Indexed: 08/21/2024] Open
Abstract
The development of sustainable processes is the most important basis to realize the shift from the fossil-fuel based industry to bio-based production. Non-model microbes represent a great resource due to their advantageous traits and unique repertoire of bioproducts. However, most of these microbes require modifications to improve their growth and production capacities as well as robustness in terms of genetic stability. For this, genome reduction is a valuable and powerful approach to meet industry requirements and to design highly efficient production strains. Here, we provide an overview of various genome reduction approaches in prokaryotic microorganisms, with a focus on non-model organisms, and highlight the example of a successful genome-reduced model organism chassis. Furthermore, we discuss the advances and challenges of promising non-model microbial chassis.
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Affiliation(s)
| | - Jochen Schmid
- Institute of Molecular Microbiology and Biotechnology, University of Münster, Münster, Germany
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3
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Huang XY, Ye XP, Hu YY, Tang ZX, Zhang T, Zhou H, Zhou T, Bai XL, Pi EX, Xie BH, Shi LE. Exopolysaccharides of Paenibacillus polymyxa: A review. Int J Biol Macromol 2024; 261:129663. [PMID: 38278396 DOI: 10.1016/j.ijbiomac.2024.129663] [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: 11/08/2023] [Revised: 12/30/2023] [Accepted: 01/19/2024] [Indexed: 01/28/2024]
Abstract
Paenibacillus polymyxa (P. polymyxa) is a member of the genus Paenibacillus, which is a rod-shaped, spore-forming gram-positive bacterium. P. polymyxa is a source of many metabolically active substances, including polypeptides, volatile organic compounds, phytohormone, hydrolytic enzymes, exopolysaccharide (EPS), etc. Due to the wide range of compounds that it produces, P. polymyxa has been extensively studied as a plant growth promoting bacterium which provides a direct benefit to plants through the improvement of N fixation from the atmosphere and enhancement of the solubilization of phosphorus and the uptake of iron in the soil, and phytohormones production. Among the metabolites from P. polymyxa, EPS exhibits many activities, for example, antioxidant, immunomodulating, anti-tumor and many others. EPS has various applications in food, agriculture, environmental protection. Particularly, in the field of sustainable agriculture, P. polymyxa EPS can be served as a biofilm to colonize microbes, and also can act as a nutrient sink on the roots of plants in the rhizosphere. Therefore, this paper would provide a comprehensive review of the advancements of diverse aspects of EPS from P. polymyxa, including the production, extraction, structure, biosynthesis, bioactivity and applications, etc. It would provide a direction for future research on P. polymyxa EPS.
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Affiliation(s)
- Xuan-Ya Huang
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Xin-Pei Ye
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Yan-Yu Hu
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Zhen-Xing Tang
- School of Culinary Art, Tourism College of Zhejiang, Hangzhou, Zhejiang 311231, China
| | - Tian Zhang
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Hai Zhou
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Ting Zhou
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Xue-Lian Bai
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Er-Xu Pi
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Bing-Hua Xie
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China.
| | - Lu-E Shi
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China.
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Bamigbade GB, Subhash AJ, Al-Ramadi B, Kamal-Eldin A, Gan RY, Liu SQ, Ayyash M. Gut microbiota modulation, prebiotic and bioactive characteristics of date pomace polysaccharides extracted by microwave-assisted deep eutectic solvent. Int J Biol Macromol 2024; 262:130167. [PMID: 38360226 DOI: 10.1016/j.ijbiomac.2024.130167] [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: 11/29/2023] [Revised: 02/11/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
This study investigated the characteristics of polysaccharides from date pomace using microwave-assisted deep eutectic solvents. The impact on the gut microbiota and probiotics growth was examined in vitro. The study also examined its antioxidant properties, ability to inhibit enzymes linked to diabetes and high blood pressure, impact on cell growth, and physical properties. The isolated MPS had an average molecular weight of 8073.38 kDa and contained mannose, galacturonic acid, galactose, glucose, and fructose in specific proportions. At a concentration of 1000 mg/L, MPS showed strong antioxidant activity, with significant scavenging rates in various tests such as DPPH (57.0 ± 1.05 %) and ABTS (66.4 ± 2.48 %). MPS displayed 77 %, 80 %, and 43 % inhibition for α-amylase, α-glucosidase, and ACE-inhibition, respectively. MPS displayed significant antiproliferative effects, achieving 100 % and 99 % inhibition against Caco-2 and MCF-7 cells at 2500 mg/L, respectively. MPS showed broad-spectrum antibacterial properties against both Gram-positive and Gram-negative foodborne bacteria. Gemmiger formicilis, Blautia species, Collinsella aerofaciens, and Bifidobacterium longum showed strong positive correlations, suggesting increased SCFA production. Network analysis indicated species correlations, with 86 % showing negative correlations with Escherichia and Enterococcus saccharolyticus. MPS was abundant in Firmicutes, Actinobacteria, and Proteobacteria phyla. Date pomace could serve as a dietary fiber source, promoting better health.
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Affiliation(s)
- Gafar Babatunde Bamigbade
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al-Ain, United Arab Emirates
| | - Athira Jayasree Subhash
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al-Ain, United Arab Emirates
| | - Basel Al-Ramadi
- Department of Medical Microbiology and Immunology, College of Medicine and Health Sciences, United Arab Emirates University (UAEU), Al Ain, United Arab Emirates; Zayed Center for Health Sciences, United Arab Emirates University (UAEU), Al Ain, United Arab Emirates
| | - Afaf Kamal-Eldin
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al-Ain, United Arab Emirates
| | - Ren-You Gan
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Singapore 138669, Singapore
| | - Shao Quan Liu
- Department of Food Science and Technology, Faculty of Science, National University of Singapore, Science Drive 2, Singapore 117542, Singapore
| | - Mutamed Ayyash
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al-Ain, United Arab Emirates; Zayed Center for Health Sciences, United Arab Emirates University (UAEU), Al Ain, United Arab Emirates.
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5
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Wang Z, Guo Z, Xin Y, Gu Z, Shi Y, Yang T, Li Y, Shi G, Ding Z, Zhang L. Exploration of the Native Sucrose Operon Enables the Development of an Inducible T7 Expression System in Paenibacillus polymyxa. ACS Synth Biol 2024; 13:658-668. [PMID: 38319655 DOI: 10.1021/acssynbio.3c00689] [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] [Indexed: 02/07/2024]
Abstract
The use of Paenibacillus polymyxa as an industrial producer is limited by the lack of suitable synthetic biology tools. In this study, we identified a native sucrose operon in P. polymyxa. Its structural and functional relationship analysis revealed the presence of multiple regulatory elements, including four ScrR-binding sites and a catabolite-responsive element (CRE). In P. polymyxa, we established a cascade T7 expression system involving an integrated T7 RNA polymerase (T7P) regulated by the sucrose operon and a T7 promoter. It enables controllable gene expression by sucrose and regulatory elements, and a 5-fold increase in expression efficiency compared with the original sucrose operon was achieved. Further deletion of SacB in P. polymyxa resulted in a 38.95% increase in the level of thermophilic lipase (TrLip) production using the cascade T7 induction system. The results highlight the effectiveness of sucrose regulation as a novel synthetic biology tool, which facilitates exploring gene circuits and enables their dynamic regulation.
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Affiliation(s)
- Zilong Wang
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, P. R. China
- Yixing Institute of Food and Biotechnology Co., Ltd, Yixing 214200, P. R. China
| | - Zhongpeng Guo
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, P. R. China
- Yixing Institute of Food and Biotechnology Co., Ltd, Yixing 214200, P. R. China
| | - Yu Xin
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, P. R. China
| | - Zhenghua Gu
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, P. R. China
| | - Yi Shi
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, P. R. China
| | - Ting Yang
- Wuxi Food Safety Inspection and Test Center, Technology Innovation Center of Special Food for State Market Regulation, Wuxi 214122, Jiangsu, P. R. China
| | - Youran Li
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, P. R. China
| | - Guiyang Shi
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, P. R. China
| | - Zhongyang Ding
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, P. R. China
| | - Liang Zhang
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, P. R. China
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6
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Schilling C, Gansbiller M, Rühmann B, Sieber V, Schmid J. Rheological characterization of artificial paenan compositions produced by Paenibacillus polymyxa DSM 365. Carbohydr Polym 2023; 320:121243. [PMID: 37659800 DOI: 10.1016/j.carbpol.2023.121243] [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: 06/04/2023] [Revised: 07/16/2023] [Accepted: 07/28/2023] [Indexed: 09/04/2023]
Abstract
Microbial exopolysaccharides offer a sustainable alternative to petroleum-based rheological modifiers. Recent studies revealed that the heteroexopolysaccharide produced by Paenibacillus polymyxa is composed of three distinct biopolymers, referred to as paenan I, II and III. Using CRISPR-Cas9 mediated knock-out variants of glycosyltransferases, defined polysaccharide compositions were produced and rheologically characterized in detail. The high viscosity and gel-like character of the wildtype polymer is proposed to originate from the non-covalent interaction between a pyruvate residue of paenan I and the glucuronic acid found in the backbone of paenan III. Paenan II conveys thermostable properties to the exopolysaccharide mixture. In contrast to the wildtype polymer mixture, knock-out variants demonstrated significantly altered rheological behavior. Using the rheological characterization performed in this study, tailor-made paenan variants and mixtures can be generated to be utilized in a wide range of applications including thickening agents, coatings, or high-value biomedical materials.
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Affiliation(s)
- Christoph Schilling
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, TUM Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, 94315, Straubing, Germany
| | - Moritz Gansbiller
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, TUM Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, 94315, Straubing, Germany; Institute for Molecular Microbiology and Biotechnology, University of Münster, Corrensstrasse 3, 48149 Münster, Germany
| | - Broder Rühmann
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, TUM Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, 94315, Straubing, Germany
| | - Volker Sieber
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, TUM Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, 94315, Straubing, Germany; School of Chemistry and Molecular Biosciences, The University of Queensland, 68 Copper Road, St. Lucia 4072, Australia; TUM Catalysis Research Center, Ernst-Otto-Fischer-Straße1, 85748, Garching, Germany
| | - Jochen Schmid
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, TUM Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, 94315, Straubing, Germany; Institute for Molecular Microbiology and Biotechnology, University of Münster, Corrensstrasse 3, 48149 Münster, Germany.
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7
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Rheological characterization of the exopolysaccharide produced by Alteromonas macleodii Mo 169. Int J Biol Macromol 2023; 227:619-629. [PMID: 36539173 DOI: 10.1016/j.ijbiomac.2022.12.117] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/05/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Rheology modifiers are essential additives in numerous products in a variety of industries. Due to environmental awareness, consumer-oriented industries are interested in novel natural rheological agents that can replace synthetic chemicals. In this study, the chemical composition and rheological properties of a novel exopolysaccharide (EPS) produced by Alteromonas macleodii Mo 169 were investigated. It was mainly composed of uronic acids (50 mol%) and total carbohydrates were 17 % sulfated. The EPS viscosity increased with concentration, and a non-Newtonian shear thinning behavior was found for concentrations above 0.1 wt%. The elastic and viscous moduli indicated a weak gel-like structure above 0.4 wt%. It maintained its shear thinning behavior and viscoelastic properties in the presence of NaCl and CaCl2 for pH range 5-7 and temperatures up to 55 °C. Though the apparent viscosity decreased at pH 3 and 9 and temperatures above 65 °C, the shear thinning behavior was retained. The viscous and viscoelastic properties were recovered after heating (95 °C) and cooling (0 °C), indicating a good thermal stability and recoverability. After high shear force, the solution recovered original rheological properties within few seconds, demonstrating self-healing properties.
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8
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Gradzielski M. Polymer-Surfactant Interaction for Controlling the Rheological Properties of Aqueous Surfactant Solutions. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Srivastava N, Kumari S, Kurmi S, Pinnaka AK, Choudhury AR. Isolation, purification, and characterization of a novel exopolysaccharide isolated from marine bacteria Brevibacillus borstelensis M42. Arch Microbiol 2022; 204:399. [PMID: 35713724 DOI: 10.1007/s00203-022-02993-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/17/2022] [Indexed: 11/02/2022]
Abstract
Marine microbes produce polysaccharides with unique physicochemical and functional properties that help them survive in harsh marine environments. However, only a handful of marine exopolysaccharides (EPSs) have been reported to date. The present study explored the seashore of Visakhapatnam, India, to report a novel exopolysaccharide designated as Br42 produced by Brevibacillus borstelensis M42. The isolate was identified through morphological, biochemical, phylogenetic, and genome sequencing analysis. The studies on fermentation kinetics revealed that EPS Br42 was a primary metabolite with a maximum production of 1.88 ± 0.02 g/L after 60 h when production broth was fortified with 2% glucose. Additionally, EPS Br42 was found to be a heteropolysaccharide consisting of glucose and galacturonic acid with a molecular weight of about 286 kDa. Interestingly, this molecule possesses industrially relevant functional properties such as water-holding (510 ± 0.35%), oil-holding (374 ± 0.12% for coconut oil and 384 ± 0.35% for olive oil), and swelling capacities (146.6 ± 5.75%). EPS Br42 could form an emulsion that was stable at a wide pH range for about 72 h and, in fact, performed better as compared to Span 20, a commercially used synthetic emulsifier. Moreover, this EPS was also found to be heat stable and exhibited non-Newtonian pseudoplastic behavior. These physicochemical and functional properties of polysaccharides suggest that the EPS Br42 has potential for multifarious industrial applications as an emulsifier, stabilizer, viscosifier, and binding agent.
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Affiliation(s)
- Nandita Srivastava
- Biochemical Engineering Research and Process Development Centre (BERPDC), Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Sector 39A, Chandigarh, 160036, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sumeeta Kumari
- Microbial Type Culture Collection and Gene Bank (MTCC), Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Sector 39A, Chandigarh, 160036, India
| | - Shubham Kurmi
- Biochemical Engineering Research and Process Development Centre (BERPDC), Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Sector 39A, Chandigarh, 160036, India
| | - Anil Kumar Pinnaka
- Microbial Type Culture Collection and Gene Bank (MTCC), Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Sector 39A, Chandigarh, 160036, India
| | - Anirban Roy Choudhury
- Biochemical Engineering Research and Process Development Centre (BERPDC), Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Sector 39A, Chandigarh, 160036, India.
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11
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Schilling C, Klau LJ, Aachmann FL, Rühmann B, Schmid J, Sieber V. Structural elucidation of the fucose containing polysaccharide of Paenibacillus polymyxa DSM 365. Carbohydr Polym 2022; 278:118951. [PMID: 34973768 DOI: 10.1016/j.carbpol.2021.118951] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/11/2021] [Accepted: 11/26/2021] [Indexed: 12/24/2022]
Abstract
Paenibacillus polymyxa is an avid producer of exopolysaccharides of industrial interest. However, due to the complexity of the polymer composition, structural elucidation of the polysaccharide remained unfeasible for a long time. By using a CRISPR-Cas9 mediated knock-out strategy, all single glycosyltransferases as well as the Wzy polymerases were individually deleted in the corresponding gene cluster for the first time. Thereby, it was observed that the main polymer fraction was completely suppressed (or deleted) and a pure minor fucose containing polysaccharide could be isolated, which was named paenan II. Applying this combinatorial approach, the monosaccharide composition, sequence and linkage pattern of this novel polymer was determined via HPLC-MS, GC-MS and NMR. Furthermore, we demonstrated that the knock-out of the glycosyltransferases PepQ, PepT, PepU and PepV as well as of the Wzy polymerase PepG led to the absence of paenan II, attributing those enzymes to the assembly of the repeating unit.
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Affiliation(s)
- Christoph Schilling
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Campus for Biotechnology and Sustainability, Schulgasse 16, 94315 Straubing, Germany.
| | - Leesa J Klau
- Department of Biotechnology and Food Science, NTNU Norwegian University of Science and Technology, Sem Sælands vei 6/8, 7491 Trondheim, Norway.
| | - Finn L Aachmann
- Department of Biotechnology and Food Science, NTNU Norwegian University of Science and Technology, Sem Sælands vei 6/8, 7491 Trondheim, Norway.
| | - Broder Rühmann
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Campus for Biotechnology and Sustainability, Schulgasse 16, 94315 Straubing, Germany.
| | - Jochen Schmid
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Campus for Biotechnology and Sustainability, Schulgasse 16, 94315 Straubing, Germany; Department of Biotechnology and Food Science, NTNU Norwegian University of Science and Technology, Sem Sælands vei 6/8, 7491 Trondheim, Norway; Institute for Molecular Microbiology and Biotechnology, Westfälische Wilhelms-Universität Münster, Corrensstrasse 3, 48149 Münster, Germany.
| | - Volker Sieber
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Campus for Biotechnology and Sustainability, Schulgasse 16, 94315 Straubing, Germany; School of Chemistry and Molecular Biosciences, The University of Queensland, 68 Copper Road, St. Lucia 4072, Australia; TUM Catalysis Research Center, Ernst-Otto-Fischer-Straße1, 85748, Garching, Germany.
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12
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Roychowdhury R, Srivastava N, Kumari S, Pinnaka AK, Roy Choudhury A. Isolation of an exopolysaccharide from a novel marine bacterium Neorhizobium urealyticum sp. nov. and its utilization in nanoemulsion formation for encapsulation and stabilization of astaxanthin. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Concórdio-Reis P, Alves VD, Moppert X, Guézennec J, Freitas F, Reis MAM. Characterization and Biotechnological Potential of Extracellular Polysaccharides Synthesized by Alteromonas Strains Isolated from French Polynesia Marine Environments. Mar Drugs 2021; 19:522. [PMID: 34564184 PMCID: PMC8470090 DOI: 10.3390/md19090522] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 02/04/2023] Open
Abstract
Marine environments comprise almost three quarters of Earth's surface, representing the largest ecosystem of our planet. The vast ecological and metabolic diversity found in marine microorganisms suggest that these marine resources have a huge potential as sources of novel commercially appealing biomolecules, such as exopolysaccharides (EPS). Six Alteromonas strains from different marine environments in French Polynesia atolls were selected for EPS extraction. All the EPS were heteropolysaccharides composed of different monomers, including neutral monosaccharides (glucose, galactose, and mannose, rhamnose and fucose), and uronic acids (glucuronic acid and galacturonic acid), which accounted for up to 45.5 mol% of the EPS compositions. Non-carbohydrate substituents, such as acetyl (0.5-2.1 wt%), pyruvyl (0.2-4.9 wt%), succinyl (1-1.8 wt%), and sulfate (1.98-3.43 wt%); and few peptides (1.72-6.77 wt%) were also detected. Thermal analysis demonstrated that the EPS had a degradation temperature above 260 °C, and high char yields (32-53%). Studies on EPS functional properties revealed that they produce viscous aqueous solutions with a shear thinning behavior and could form strong gels in two distinct ways: by the addition of Fe2+, or in the presence of Mg2+, Cu2+, or Ca2+ under alkaline conditions. Thus, these EPS could be versatile materials for different applications.
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Affiliation(s)
- Patrícia Concórdio-Reis
- Associate Laboratory i4HB–Institute for Health and Bioeconomy, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal; (P.C.-R.); (M.A.M.R.)
- UCIBIO–Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Vítor D. Alves
- LEAF—Linking Landscape, Environment, Agriculture and Food—Research Center, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisbon, Portugal;
| | - Xavier Moppert
- Pacific Biotech SAS, BP 140 289, 98 701 Arue, Tahiti, French Polynesia;
| | - Jean Guézennec
- AiMB (Advices in Marine Biotechnology), 17 Rue d’Ouessant, 29280 Plouzané, France;
| | - Filomena Freitas
- Associate Laboratory i4HB–Institute for Health and Bioeconomy, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal; (P.C.-R.); (M.A.M.R.)
- UCIBIO–Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Maria A. M. Reis
- Associate Laboratory i4HB–Institute for Health and Bioeconomy, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal; (P.C.-R.); (M.A.M.R.)
- UCIBIO–Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
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14
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Schilling C, Koffas MAG, Sieber V, Schmid J. Novel Prokaryotic CRISPR-Cas12a-Based Tool for Programmable Transcriptional Activation and Repression. ACS Synth Biol 2020; 9:3353-3363. [PMID: 33238093 DOI: 10.1021/acssynbio.0c00424] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Transcriptional perturbation using inactivated CRISPR-nucleases (dCas) is a common method in eukaryotic organisms. While rare examples of dCas9-based tools for prokaryotes have been described, multiplexing approaches are limited due to the used effector nuclease. For the first time, a dCas12a derived tool for the targeted activation and repression of genes was developed. Therefore, a previously described SoxS activator domain was linked to dCas12a to enable the programmable activation of gene expression. A proof of principle of transcriptional regulation was demonstrated on the basis of fluorescence reporter assays using the alternative host organism Paenibacillus polymyxa as well as Escherichia coli. Single target and multiplex CRISPR interference targeting the exopolysaccharide biosynthesis of P. polymyxa was shown to emulate polymer compositions of gene knockouts. The simultaneous expression of 11 gRNAs targeting multiple lactate dehydrogenases and a butanediol dehydrogenase resulted in decreased lactate formation, as well as an increased butanediol production in microaerobic fermentation processes. Even though Cas12a is more restricted in terms of its genomic target sequences compared to Cas9, its ability to efficiently process its own guide RNAs in vivo makes it a promising tool to orchestrate sophisticated genetic reprogramming of bacterial cells or to screen for engineering targets in the genome. The developed tool will accelerate metabolic engineering efforts in the alternative host organism P. polymyxa and might be also applied for other bacterial cell factories.
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Affiliation(s)
- Christoph Schilling
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Campus for Biotechnology and Sustainability, Schulgasse 16, 94315 Straubing, Germany
| | - Mattheos A G Koffas
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, United States
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
| | - Volker Sieber
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Campus for Biotechnology and Sustainability, Schulgasse 16, 94315 Straubing, Germany
- Fraunhofer IGB, Straubing Branch BioCat, Schulgasse 23, 94315 Straubing, Germany
- TUM Catalysis Research Center, Ernst-Otto-Fischer-Straße1, 85748 Garching, Germany
- School of Chemistry and Molecular Biosciences, The University of Queensland, 68 Copper Road, St. Lucia 4072, Australia
| | - Jochen Schmid
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Campus for Biotechnology and Sustainability, Schulgasse 16, 94315 Straubing, Germany
- Institute for Molecular Microbiology and Biotechnology, University of Münster, Corrensstrasse 3, 48149 Münster, Germany
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15
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Rheology of sphingans in EPS–surfactant systems. Carbohydr Polym 2020; 248:116778. [DOI: 10.1016/j.carbpol.2020.116778] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/27/2020] [Accepted: 07/13/2020] [Indexed: 01/02/2023]
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16
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Medina-Cabrera EV, Gansbiller M, Rühmann B, Schmid J, Sieber V. Rheological characterization of Porphyridium sordidum and Porphyridium purpureum exopolysaccharides. Carbohydr Polym 2020; 253:117237. [PMID: 33278993 DOI: 10.1016/j.carbpol.2020.117237] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/10/2020] [Accepted: 10/11/2020] [Indexed: 11/28/2022]
Abstract
Porphyridium exopolysaccharides (EPSs), which contain sulfate and methyl groups, have a similar potential for use in multiple industrial applications as macroalgae counterparts but lack detailed characterization. For this reason, we produced 0.21 g L-1 of P. sordidum EPS and 0.17 g L-1P. purpureum EPS, followed by a thorough rheological characterization in respect to their differences in monomer composition, sulfate concentrations and methyl patterns. Furthermore, the effect of NaCl and CaCl2 was evaluated, and the effect of high salinity media on the rheological properties of the biopolymers was analyzed. Both Porphyridium EPSs show a remarkable stability at high temperature and under the effect of mono- and divalent cations, and high salinity cultivation medium, which was evidenced by the rheological properties of the EPS. This feature is not displayed by many carbohydrate polymers, making it possible to enrich current applications in which EPS are used.
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Affiliation(s)
| | - Moritz Gansbiller
- Technical University of Munich, Campus for Biotechnology and Sustainability, 94315, Straubing, Germany.
| | - Broder Rühmann
- Technical University of Munich, Campus for Biotechnology and Sustainability, 94315, Straubing, Germany.
| | - Jochen Schmid
- Technical University of Munich, Campus for Biotechnology and Sustainability, 94315, Straubing, Germany; Norwegian University of Science and Technology, Department of Biotechnology and Food Science, Sem Sælands vei 6-8, 7491, Trondheim, Norway.
| | - Volker Sieber
- Technical University of Munich, Campus for Biotechnology and Sustainability, 94315, Straubing, Germany; Catalysis Research Center, Technical University of Munich, 85748, Garching, Germany; Fraunhofer IGB, Branch BioCat, 94315, Straubing, Germany; The University of Queensland, School of Chemistry and Molecular Biosciences, 68 Cooper Road, St. Lucia, 4072, Australia.
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17
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Exopolysaccharide produced by potential probiotic Enterococcus faecium MS79: Characterization, bioactivities and rheological properties influenced by salt and pH. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109741] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Li C, Ding J, Chen D, Shi Z, Wang L. Bioconversion of cheese whey into a hetero-exopolysaccharide via a one-step bioprocess and its applications. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107701] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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19
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Ayyash M, Abu-Jdayil B, Itsaranuwat P, Galiwango E, Tamiello-Rosa C, Abdullah H, Esposito G, Hunashal Y, Obaid RS, Hamed F. Characterization, bioactivities, and rheological properties of exopolysaccharide produced by novel probiotic Lactobacillus plantarum C70 isolated from camel milk. Int J Biol Macromol 2020; 144:938-946. [DOI: 10.1016/j.ijbiomac.2019.09.171] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 08/26/2019] [Accepted: 09/18/2019] [Indexed: 01/17/2023]
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20
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Jaroszuk-Ściseł J, Nowak A, Komaniecka I, Choma A, Jarosz-Wilkołazka A, Osińska-Jaroszuk M, Tyśkiewicz R, Wiater A, Rogalski J. Differences in Production, Composition, and Antioxidant Activities of Exopolymeric Substances (EPS) Obtained from Cultures of Endophytic Fusarium culmorum Strains with Different Effects on Cereals. Molecules 2020; 25:E616. [PMID: 32019268 PMCID: PMC7037457 DOI: 10.3390/molecules25030616] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/24/2020] [Accepted: 01/28/2020] [Indexed: 11/16/2022] Open
Abstract
Exopolymeric substances (EPS) can determine plant-microorganism interactions and have great potential as bioactive compounds. The different amounts of EPS obtained from cultures of three endophytic Fusarium culmorum strains with different aggressiveness-growth promoting (PGPF), deleterious (DRMO), and pathogenic towards cereal plants-depended on growth conditions. The EPS concentrations (under optimized culture conditions) were the lowest (0.2 g/L) in the PGPF, about three times higher in the DRMO, and five times higher in the pathogen culture. The EPS of these strains differed in the content of proteins, phenolic components, total sugars, glycosidic linkages, and sugar composition (glucose, mannose, galactose, and smaller quantities of arabinose, galactosamine, and glucosamine). The pathogen EPS exhibited the highest total sugar and mannose concentration. FTIR analysis confirmed the β configuration of the sugars. The EPS differed in the number and weight of polysaccharidic subfractions. The EPS of PGPF and DRMO had two subfractions and the pathogen EPS exhibited a subfraction with the lowest weight (5 kDa). The three EPS preparations (ethanol-precipitated EP, crude C, and proteolysed P) had antioxidant activity (particularly high for the EP-EPS soluble in high concentrations). The EP-EPS of the PGPF strain had the highest antioxidant activity, most likely associated with the highest content of phenolic compounds in this EPS.
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Affiliation(s)
- Jolanta Jaroszuk-Ściseł
- Department of Industrial and Environmental Microbiology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland; (R.T.); (A.W.)
| | - Artur Nowak
- Department of Industrial and Environmental Microbiology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland; (R.T.); (A.W.)
| | - Iwona Komaniecka
- Department of Genetic and Microbiology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland; (I.K.); (A.C.)
| | - Adam Choma
- Department of Genetic and Microbiology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland; (I.K.); (A.C.)
| | - Anna Jarosz-Wilkołazka
- Department of Biochemistry and Biotechnology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland; (A.J.-W.); (M.O.-J.); (J.R.)
| | - Monika Osińska-Jaroszuk
- Department of Biochemistry and Biotechnology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland; (A.J.-W.); (M.O.-J.); (J.R.)
| | - Renata Tyśkiewicz
- Department of Industrial and Environmental Microbiology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland; (R.T.); (A.W.)
- Military Institute of Hygiene and Epidemiology, Lubelska St. 2, 24-100 Puławy, Poland
| | - Adrian Wiater
- Department of Industrial and Environmental Microbiology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland; (R.T.); (A.W.)
| | - Jerzy Rogalski
- Department of Biochemistry and Biotechnology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland; (A.J.-W.); (M.O.-J.); (J.R.)
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21
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Exopolysaccharides produced by Pandoraea shows emulsifying and anti-biofilm activities. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1737-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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22
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Jeong H, Choi SK, Ryu CM, Park SH. Chronicle of a Soil Bacterium: Paenibacillus polymyxa E681 as a Tiny Guardian of Plant and Human Health. Front Microbiol 2019; 10:467. [PMID: 30930873 PMCID: PMC6429003 DOI: 10.3389/fmicb.2019.00467] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Accepted: 02/21/2019] [Indexed: 01/25/2023] Open
Abstract
The Gram-positive rhizosphere bacterium Paenibacillus polymyxa promotes plant growth and produces various antibiotics. Herein, we review research on this species over the past two and a half decades, and focus on the mechanisms of P. polymyxa strain E681, isolated from barley roots in the South Korea in 1995. Strain E681 has outstanding growth-promoting effects on barley, cucumber, pepper, sesame, and Arabidopsis thaliana and produces antimicrobial compounds that protect plants against pathogenic fungi, oomycetes, and bacteria. Induced systemic resistance elicited by treating seeds or roots with strain E681 is a possible mechanism for protecting systemic plant tissues from biotic and other environmental stresses. Genome sequencing has broadened our horizons for antibiotic development and other industrial applications beyond agricultural use. At least six gene clusters for the biosynthesis of antibiotics have been discovered, including polymyxin (pmx), which was recently re-instated as an antibiotic of last resort against Gram-negative drug-resistant bacteria. Three groups of antibiotic synthetases include the gene clusters that encode one for the non-ribosomal peptide polymyxin, fusaricidin, and tridecaptin, another for the lantibiotic paenilan, and the third for a polyketide. We successfully introduced the pmx gene cluster into the surrogate host Bacillus subtilis and created polymyxin derivatives by domain swapping. Furthermore, various E681 derivatives, including a high fusaricidin producer and strains lacking multi-antibiotics production, have been constructed by random mutagenesis and genome engineering. Thus, E681 is an important bacterium that contributes to both plant and human health.
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Affiliation(s)
- Haeyoung Jeong
- Infectious Disease Research Center, KRIBB, Daejeon, South Korea
- Department of Biosystems and Bioengineering, KRIBB School of Biotechnology, Korea University of Science and Technology, Daejeon, South Korea
| | - Soo-Keun Choi
- Infectious Disease Research Center, KRIBB, Daejeon, South Korea
- Department of Biosystems and Bioengineering, KRIBB School of Biotechnology, Korea University of Science and Technology, Daejeon, South Korea
| | - Choong-Min Ryu
- Infectious Disease Research Center, KRIBB, Daejeon, South Korea
- Department of Biosystems and Bioengineering, KRIBB School of Biotechnology, Korea University of Science and Technology, Daejeon, South Korea
| | - Seung-Hwan Park
- Infectious Disease Research Center, KRIBB, Daejeon, South Korea
- Department of Biosystems and Bioengineering, KRIBB School of Biotechnology, Korea University of Science and Technology, Daejeon, South Korea
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