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Wang Z, Huang X, Jan M, Kong D, Wang W, Zhang X. Lon protease downregulates phenazine-1-carboxamide biosynthesis by degrading the quorum sensing signal synthase PhzI and exhibits negative feedback regulation of Lon itself in Pseudomonas chlororaphis HT66. Mol Microbiol 2021; 116:690-706. [PMID: 34097792 DOI: 10.1111/mmi.14764] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 06/02/2021] [Accepted: 06/02/2021] [Indexed: 11/28/2022]
Abstract
Pseudomonas chlororaphis HT66 exhibits strong antagonistic activity against various phytopathogenic fungi due to its main antibiotic phenazine-1-carboxamide (PCN). PCN gene cluster consists of phzABCDEFG, phzH, phzI, and phzR operons. phzABCDEFG transcription is activated by the PhzI/R quorum sensing system. Deletion of the lon gene encoding an ATP-dependent protease resulted in significant enhancement of PCN production in strain HT66. However, the regulatory pathway and mechanism of Lon on PCN biosynthesis remain unknown. Here, lon mutation was shown to significantly improve antimicrobial activity of strain HT66. The N-acyl-homoserine lactone synthase PhzI mediates the negative regulation of PCN biosynthesis and phzABCDEFG transcription by Lon. Western blot showed that PhzI protein abundance and stability were significantly enhanced by lon deletion. The in vitro degradation assay suggested that Lon could directly degrade PhzI protein. However, Lon with an amino acid replacement (S674 -A) could not degrade PhzI protein. Lon-recognized region was located within the first 50 amino acids of PhzI. In addition, Lon formed a new autoregulatory feedback circuit to modulate its own degradation by other potential proteases. In summary, we elucidated the Lon-regulated pathway mediated by PhzI during PCN biosynthesis and the molecular mechanism underlying the degradation of PhzI by Lon in P. chlororaphis HT66.
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Affiliation(s)
- Zheng Wang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Xianqing Huang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Malik Jan
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Deyu Kong
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Wang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Xuehong Zhang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
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2
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Liu WH, Yue SJ, Feng TT, Li S, Huang P, Hu HB, Wang W, Zhang XH. Characterization and Engineering of Pseudomonas chlororaphis LX24 with High Production of 2-Hydroxyphenazine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:4778-4784. [PMID: 33848158 DOI: 10.1021/acs.jafc.1c00434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The take-all disease of wheat is one of the most serious diseases in the field of food security in the world. There is no effective biological pesticide to prevent the take-all disease of wheat. 2-Hydroxyphenazine (2-OH-PHZ) was reported to possess a better inhibitory effect on the take-all disease of wheat than phenazine-1-carboxylic acid, which was registered as "Shenqinmycin" in China in 2011. The aim of this study was to construct a 2-OH-PHZ high-producing strain by strain screening, genome sequencing, genetic engineering, and fermentation optimization. First, the metabolites of the previously screened new phenazine-producing Pseudomonas sp. strain were identified, and the taxonomic status of the new Pseudomonas sp. strain was confirmed through 16S rRNA and matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS). Then, the new Pseudomonas sp. strain was named Pseudomonas chlororaphis subsp. aurantiaca LX24, which is a new subspecies of P. chlororaphis that can synthesize 2-OH-PHZ. Next, the draft genome of strain LX24 was determined, and clusters of orthologous group (COG) analysis, KEGG analysis, and gene ontology (GO) analysis of strain LX24 were performed. Furthermore, the production of 2-OH-PHZ increased to 351.7 from 158.6 mg/L by deletion of the phenazine synthesis negative regulatory genes rpeA and rsmE in strain LX24. Finally, the 2-OH-PHZ production of strain LX24 reached 677.1 mg/L after fermentation optimization, which is the highest production through microbial fermentation reported to date. This work provides a reference for the efficient production of other pesticides and antibiotics.
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Affiliation(s)
- Wen-Hui Liu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Sheng-Jie Yue
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Tong-Tong Feng
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Song Li
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Peng Huang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hong-Bo Hu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
- National Experimental Teaching Center for Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wei Wang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xue-Hong Zhang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
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3
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Optimization of Lipase Production by Response Surface Methodology and Its Application for Efficient Biodegradation of Polyester vylon-200. Catal Letters 2021. [DOI: 10.1007/s10562-021-03603-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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4
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Enhancing Lipase Biosynthesis by Aspergillus Melleus and its Biocatalytic Potential for Degradation of Polyester Vylon-200. Catal Letters 2021. [DOI: 10.1007/s10562-020-03476-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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5
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Sun X, Xu Y, Chen L, Jin X, Ni H. The salt-tolerant phenazine-1-carboxamide-producing bacterium Pseudomonas aeruginosa NF011 isolated from wheat rhizosphere soil in dry farmland with antagonism against Fusarium graminearum. Microbiol Res 2020; 245:126673. [PMID: 33429287 DOI: 10.1016/j.micres.2020.126673] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 11/04/2020] [Accepted: 12/11/2020] [Indexed: 11/26/2022]
Abstract
Fusarium head blight (FHB) disease caused by Fusarium graminearum (Fg) seriously affects the yield and quality of wheat. In this study, after bacterial community analysis of two wheat rhizosphere soils, the genus Pseudomonas was shown to be enriched in normal dry farmland (maize-wheat rotation) compared to that observed nearby paddy farmland (rice-wheat rotation) with serious FHB disease. Subsequently, a P. aeruginosa strain, NF011 with the highest antagonistic activity against Fg and excellent tolerance to 8.0 % of NaCl was isolated from the wheat rhizosphere soil in the normal dry farmland. Dual culture assay results showed that NF011 is a broad-spectrum fungicide for controlling six wheat pathogenic fungi. The major antifungal compound produced by NF011 was identified as phenazine-1-carboxamide (PCN) by LC-MS and nuclear magnetic resonance. 1.0 × 108 CFU/mL of NF011 or 32 mg/L of PCN could completely inhibit Fg spore germination and resulted in the destruction of Fg hypha vacuoles. Mannitol, peanut meal, beef extract, metal ions (Mn2+, Ca2+, Fe2+, and Mg2+), and amino acids (Arg and Lys) could promote the production of PCN by NF011, moreover, the optimal pH and temperature was 6.0 and 20 °C. The PCN produced by NF011 under the optimized culture conditions reached 436.55 ± 11.06 mg/L, 4.90-fold higher than that observed under the basic culture conditions. Finally, infection experiment results showed that NF011 can effectively prevent Fg spores from infecting wheat spikes and wheat grains and suppress the production of deoxynivalenol (DON). Therefore, the salt-tolerant PCN-producing NF011 has the potential to control wheat fungal disease.
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Affiliation(s)
- Xiaowen Sun
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, School of Life Sciences, Hubei University, Wuhan, 430062, China; State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Yin Xu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Ling Chen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Xinmeng Jin
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Hong Ni
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, School of Life Sciences, Hubei University, Wuhan, 430062, China.
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6
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Li L, Li Z, Yao W, Zhang X, Wang R, Li P, Yang K, Wang T, Liu K. Metabolic Engineering of Pseudomonas chlororaphis Qlu-1 for the Enhanced Production of Phenazine-1-carboxamide. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:14832-14840. [PMID: 33287542 DOI: 10.1021/acs.jafc.0c05746] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Phenazine-1-carboxylic acid (PCA), the primary active ingredient of Shenqinmycin, was awarded the China Pesticide Certificate in 2011 due to its excellent antibacterial action. Phenazine-1-carboxamide (PCN) is a derivative of PCA, which is modified by the phzH gene, and its anti-bacterial effect is better than that of PCA. At present, PCN can be produced via Pseudomonas fermentation using an opportunistic pathogen, Pseudomonas aeruginosa. Qlu-1 is an environmentally friendly strain of Pseudomonas chlororaphis that can produce phenazine derivatives. We replaced the phzO gene with the phzH gene from P. aeruginosa to achieve PCN accumulation. Different strategies were used to enhance PCN production: knocking out of negative regulatory factors, enhancing the shikimate pathway by gene overexpression and gene knocking, and using fed-batch fermentation. Finally, an engineered strain of P. chlororaphis was produced, which produced 11.45 g/L PCN. This achievement indicates that Qlu-1 could be modified as a potential microbial cell factory for PCN production by metabolic engineering.
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Affiliation(s)
- Ling Li
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250013, People's Republic of China
| | - Zhenghua Li
- Shandong Provincial Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, People's Republic of China
| | - Wentao Yao
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), College of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, People's Republic of China
| | - Xuehong Zhang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Ruiming Wang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), College of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, People's Republic of China
| | - Piwu Li
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), College of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, People's Republic of China
| | - Kai Yang
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250013, People's Republic of China
| | - Tengfei Wang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), College of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, People's Republic of China
| | - Kaiquan Liu
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), College of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, People's Republic of China
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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Schwanemann T, Otto M, Wierckx N, Wynands B. Pseudomonasas Versatile Aromatics Cell Factory. Biotechnol J 2020; 15:e1900569. [DOI: 10.1002/biot.201900569] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/08/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Tobias Schwanemann
- Institute of Bio‐ and Geosciences, IBG‐1: Biotechnology Forschungszentrum Jülich, GmbH 52425 Jülich Germany
| | - Maike Otto
- Institute of Bio‐ and Geosciences, IBG‐1: Biotechnology Forschungszentrum Jülich, GmbH 52425 Jülich Germany
| | - Nick Wierckx
- Institute of Bio‐ and Geosciences, IBG‐1: Biotechnology Forschungszentrum Jülich, GmbH 52425 Jülich Germany
| | - Benedikt Wynands
- Institute of Bio‐ and Geosciences, IBG‐1: Biotechnology Forschungszentrum Jülich, GmbH 52425 Jülich Germany
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8
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Metabolic reconstruction of Pseudomonas chlororaphis ATCC 9446 to understand its metabolic potential as a phenazine-1-carboxamide-producing strain. Appl Microbiol Biotechnol 2020; 104:10119-10132. [PMID: 32984920 DOI: 10.1007/s00253-020-10913-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/07/2020] [Accepted: 09/15/2020] [Indexed: 01/01/2023]
Abstract
Pseudomonas chlororaphis is a plant-associated bacterium with reported antagonistic activity against different organisms and plant growth-promoting properties. P. chlororaphis possesses exciting biotechnological features shared with another Pseudomonas with a nonpathogenic phenotype. Part of the antagonistic role of P. chlororaphis is due to its production of a wide variety of phenazines. To expand the knowledge of the metabolic traits of this organism, we constructed the first experimentally validated genome-scale model of P. chlororaphis ATCC 9446, containing 1267 genes and 2289 reactions, and analyzed strategies to maximize its potential for the production of phenazine-1-carboxamide (PCN). The resulting model also describes the capability of P. chlororaphis to carry out the denitrification process and its ability to consume sucrose (Scr), trehalose, mannose, and galactose as carbon sources. Additionally, metabolic network analysis suggested fatty acids as the best carbon source for PCN production. Moreover, the optimization of PCN production was performed with glucose and glycerol. The optimal PCN production phenotype requires an increased carbon flux in TCA and glutamine synthesis. Our simulations highlight the intrinsic H2O2 flux associated with PCN production, which may generate cellular stress in an overproducing strain. These results suggest that an improved antioxidative strategy could lead to optimal performance of phenazine-producing strains of P. chlororaphis. KEY POINTS : • This is the first publication of a metabolic model for a strain of P. chlororaphis. • Genome-scale model is worthy tool to increase the knowledge of a non model organism. • Fluxes simulations indicate a possible effect of H2O2 on phenazines production. • P. chlororaphis can be a suitable model for a wide variety of compounds.
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9
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Wang S, Cui J, Bilal M, Hu H, Wang W, Zhang X. Pseudomonas spp. as cell factories (MCFs) for value-added products: from rational design to industrial applications. Crit Rev Biotechnol 2020; 40:1232-1249. [PMID: 32907412 DOI: 10.1080/07388551.2020.1809990] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In recent years, there has been increasing interest in microbial biotechnology for the production of value-added compounds from renewable resources. Pseudomonas species have been proposed as a suitable workhorse for high-value secondary metabolite production because of their unique characteristics for fast growth on sustainable carbon sources, a clear inherited background, versatile intrinsic metabolism with diverse enzymatic capacities, and their robustness in an extreme environment. It has also been demonstrated that metabolically engineered Pseudomonas strains can produce several industrially valuable aromatic chemicals and natural products such as phenazines, polyhydroxyalkanoates, rhamnolipids, and insecticidal proteins from renewable feedstocks with remarkably high yields suitable for commercial application. In this review, we summarize cell factory construction in Pseudomonas for the biosynthesis of native and non-native bioactive compounds in P. putida, P. chlororaphis, P. aeruginosa, as well as pharmaceutical proteins production by P. fluorescens. Additionally, some novel strategies together with metabolic engineering strategies in order to improve the biosynthetic abilities of Pseudomonas as an ideal chassis are discussed. Finally, we proposed emerging opportunities, challenges, and essential strategies to enable the successful development of Pseudomonas as versatile microbial cell factories for the bioproduction of diverse bioactive compounds.
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Affiliation(s)
- Songwei Wang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Jiajia Cui
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Hongbo Hu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Wang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Xuehong Zhang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
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10
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Immobilization of Alkaline Protease From Bacillus brevis Using Ca-Alginate Entrapment Strategy for Improved Catalytic Stability, Silver Recovery, and Dehairing Potentialities. Catal Letters 2020. [DOI: 10.1007/s10562-020-03268-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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11
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Khan YM, Munir H, Anwar Z. Optimization of process variables for enhanced production of urease by indigenous Aspergillus niger strains through response surface methodology. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101202] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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12
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Liu L, Bilal M, Duan X, Iqbal HMN. Mitigation of environmental pollution by genetically engineered bacteria - Current challenges and future perspectives. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 667:444-454. [PMID: 30833243 DOI: 10.1016/j.scitotenv.2019.02.390] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/15/2019] [Accepted: 02/15/2019] [Indexed: 02/08/2023]
Abstract
Industries are the paramount driving force for the economic and technological development of society. However, the flourishing industrialization and unimpeded growth of current production unit's result in widespread environmental pollution due to increased discharge of wastes loaded with baleful, hazardous, and carcinogenic contaminants. Physicochemical-based remediation means are costly, create a secondary disposal problem and remain inadequate for pollution mitigating because of the continuous emergence of new recalcitrant pollutants. Due to eco-friendly, social acceptance, and lesser health hazards, microbial bioremediation has received considerable global attention for pollution abatement. Moreover, with the recent advancement in biotechnology and microbiology, genetically engineered bacteria with high ability to remove environmental pollutants are widely used in the fields of environmental restoration, resulting in the bioremediation in a more viable and eco-friendly way. This review summarized the advantages of genetically engineered bacteria and their application in the treatment of a wide variety of environmental contaminants such as synthetic dyestuff, heavy metal, petroleum hydrocarbons, polychlorinated biphenyls, phenazines and agricultural chemicals which will include herbicides, pesticides, and fertilizers. Considering the risk of genetic material exchange by using genetically engineered bacteria, the challenges and limitations associated with the application of recombinant bacteria on contaminated sites are also discussed. An integrated microbiological, biological and ecological acquaintance accompanied by field engineering designs are the desired features for effective in situ bioremediation of hazardous waste polluted sites by recombinant bacteria.
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Affiliation(s)
- Lina Liu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Xuguo Duan
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico.
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13
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Poblete-Castro I, Wittmann C, Nikel PI. Biochemistry, genetics and biotechnology of glycerol utilization in Pseudomonas species. Microb Biotechnol 2019; 13:32-53. [PMID: 30883020 PMCID: PMC6922529 DOI: 10.1111/1751-7915.13400] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/17/2019] [Accepted: 02/23/2019] [Indexed: 11/30/2022] Open
Abstract
The use of renewable waste feedstocks is an environment‐friendly choice contributing to the reduction of waste treatment costs and increasing the economic value of industrial by‐products. Glycerol (1,2,3‐propanetriol), a simple polyol compound widely distributed in biological systems, constitutes a prime example of a relatively cheap and readily available substrate to be used in bioprocesses. Extensively exploited as an ingredient in the food and pharmaceutical industries, glycerol is also the main by‐product of biodiesel production, which has resulted in a progressive drop in substrate price over the years. Consequently, glycerol has become an attractive substrate in biotechnology, and several chemical commodities currently produced from petroleum have been shown to be obtained from this polyol using whole‐cell biocatalysts with both wild‐type and engineered bacterial strains. Pseudomonas species, endowed with a versatile and rich metabolism, have been adopted for the conversion of glycerol into value‐added products (ranging from simple molecules to structurally complex biopolymers, e.g. polyhydroxyalkanoates), and a number of metabolic engineering strategies have been deployed to increase the number of applications of glycerol as a cost‐effective substrate. The unique genetic and metabolic features of glycerol‐grown Pseudomonas are presented in this review, along with relevant examples of bioprocesses based on this substrate – and the synthetic biology and metabolic engineering strategies implemented in bacteria of this genus aimed at glycerol valorization.
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Affiliation(s)
- Ignacio Poblete-Castro
- Biosystems Engineering Laboratory, Center for Bioinformatics and Integrative Biology, Faculty of Natural Sciences, Universidad Andrés Bello, Santiago de Chile, Chile
| | - Christoph Wittmann
- Institute of Systems Biotechnology, Universität des Saarlandes, Saarbrücken, Germany
| | - Pablo I Nikel
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kgs Lyngby, Denmark
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14
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Mo J, Zhang Z, Wang Z, Yu Z, Li S, Jiang S, Liu H, Ao J. Isolation and identification of a psychrotolerant dimethyl phthalate-degrading bacterium from selected frozen soil of high-latitude areas in China and optimization of its fermentation conditions using response surface methodology. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1696703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
- Jixian Mo
- Heilongjiang Key Laboratory of Resistance Gene Engineering and Preservation of Biodiversity in Cold Areas, College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, PR China
| | - Zhihong Zhang
- Laboratory of Rice Processing, Food Processing Institute, Heilongjiang Academy of Agricultural Sciences, Harbin, PR China
| | - Zhigang Wang
- Heilongjiang Key Laboratory of Resistance Gene Engineering and Preservation of Biodiversity in Cold Areas, College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, PR China
| | - Zhidan Yu
- Heilongjiang Key Laboratory of Resistance Gene Engineering and Preservation of Biodiversity in Cold Areas, College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, PR China
| | - Shanshan Li
- Heilongjiang Key Laboratory of Resistance Gene Engineering and Preservation of Biodiversity in Cold Areas, College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, PR China
| | - ShaSha Jiang
- Heilongjiang Key Laboratory of Resistance Gene Engineering and Preservation of Biodiversity in Cold Areas, College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, PR China
| | - Hening Liu
- Heilongjiang Key Laboratory of Resistance Gene Engineering and Preservation of Biodiversity in Cold Areas, College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, PR China
| | - Jia Ao
- Heilongjiang Key Laboratory of Resistance Gene Engineering and Preservation of Biodiversity in Cold Areas, College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, PR China
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