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Zhao X, Hussain MH, Mohsin A, Liu Z, Xu Z, Li Z, Guo W, Guo M. Mechanistic insight for improving butenyl-spinosyn production through combined ARTP/UV mutagenesis and ribosome engineering in Saccharopolyspora pogona. Front Bioeng Biotechnol 2024; 11:1329859. [PMID: 38292303 PMCID: PMC10825966 DOI: 10.3389/fbioe.2023.1329859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/22/2023] [Indexed: 02/01/2024] Open
Abstract
Butenyl-spinosyn is a highly effective, wide-spectrum and environmentally-friendly biological insecticide produced by Saccharopolyspora pogona. However, its scale-up is impeded due to its lower titer in wild-type strains. In this work, ARTP/UV mutagenesis and ribosome engineering were employed to enhance the butenyl-spinosyn production, and a stable mutant Saccharopolyspora pogona aG6 with high butenyl-spinosyn yield was successfully obtained. For the first time, the fermentation results in the 5 L bioreactor demonstrated that the butenyl-spinosyn produced by mutant Saccharopolyspora pogona aG6 reached the maximum value of 130 mg/L, almost 4-fold increase over the wild-type strain WT. Furthermore, comparative genomic, transcriptome and target metabolomic analysis revealed that the accumulation of butenyl-spinosyn was promoted by alterations in ribosomal proteins, branched-chain amino acid degradation and oxidative phosphorylation. Conclusively, the proposed model of ribosome engineering combined with ARTP/UV showed the improved biosynthesis regulation of butenyl-spinosyn in S. pogona.
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Affiliation(s)
- Xueli Zhao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Muhammad Hammad Hussain
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Ali Mohsin
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Zebo Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Zhixian Xu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Zhanxia Li
- Department of Respiratory Medicine, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiqun Guo
- Academy of National Food and Strategic Reserves Administration, Beijing, China
| | - Meijin Guo
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
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2
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Dai P, Qin Y, Li L, Li H, Lv L, Xu D, Song Y, Huang T, Lin S, Deng Z, Tao M. Enhancing tylosin production by combinatorial overexpression of efflux, SAM biosynthesis, and regulatory genes in hyperproducing Streptomyces xinghaiensis strain. Synth Syst Biotechnol 2023; 8:486-497. [PMID: 37519989 PMCID: PMC10372049 DOI: 10.1016/j.synbio.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/29/2023] [Accepted: 07/06/2023] [Indexed: 08/01/2023] Open
Abstract
Tylosin is a 16-membered macrolide antibiotic widely used in veterinary medicine to control infections caused by Gram-positive pathogens and mycoplasmas. To improve the fermentation titer of tylosin in the hyperproducing Streptomyces xinghaiensis strain TL01, we sequenced its whole genome and identified the biosynthetic gene cluster therein. Overexpression of the tylosin efflux gene tlrC, the cluster-situated S-adenosyl methionine (SAM) synthetase gene metKcs, the SAM biosynthetic genes adoKcs-metFcs, or the pathway-specific activator gene tylR enhanced tylosin production by 18%, 12%, 11%, and 11% in the respective engineered strains TLPH08-2, TLPH09, TLPH10, and TLPH12. Co-overexpression of metKcs and adoKcs-metFcs as two transcripts increased tylosin production by 22% in the resultant strain TLPH11 compared to that in TL01. Furthermore, combinational overexpression of tlrC, metKcs, adoKcs-metFcs, and tylR as four transcripts increased tylosin production by 23% (10.93g/L) in the resultant strain TLPH17 compared to that in TL01. However, a negligible additive effect was displayed upon combinational overexpression in TLPH17 as suggested by the limited increment of fermentation titer compared to that in TLPH08-2. Transcription analyses indicated that the expression of tlrC and three SAM biosynthetic genes in TLPH17 was considerably lower than that of TLPH08-2 and TLPH11. Based on this observation, the five genes were rearranged into one or two operons to coordinate their overexpression, yielding two engineered strains TLPH23 and TLPH24, and leading to further enhancement of tylosin production over TLPH17. In particular, the production of TLPH23 reached 11.35 g/L. These findings indicated that the combinatorial strategy is a promising approach for enhancing tylosin production in high-yielding industrial strains.
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Affiliation(s)
- Penghui Dai
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yuyao Qin
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Luyuan Li
- Zhejiang Apeloa Biotechnology Co., Ltd., Jinhua, 322109, China
| | - Haidi Li
- Zhejiang Apeloa Jiayuan Pharmaceutical Co., Ltd., Jinhua, 322118, China
| | - Lihuo Lv
- Zhejiang Apeloa Jiayuan Pharmaceutical Co., Ltd., Jinhua, 322118, China
| | - Danying Xu
- Zhejiang Apeloa Jiayuan Pharmaceutical Co., Ltd., Jinhua, 322118, China
| | - Yuqing Song
- Zhejiang Apeloa Jiayuan Pharmaceutical Co., Ltd., Jinhua, 322118, China
| | - Tingting Huang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shuangjun Lin
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
- Haihe Laboratory of Synthetic Biology, Tianjin, 300308, China
| | - Zixin Deng
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
- Haihe Laboratory of Synthetic Biology, Tianjin, 300308, China
| | - Meifeng Tao
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
- Haihe Laboratory of Synthetic Biology, Tianjin, 300308, China
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Thakur M, Kumar P, Rajput D, Yadav V, Dhaka N, Shukla R, Kumar Dubey K. Genome-guided approaches and evaluation of the strategies to influence bioprocessing assisted morphological engineering of Streptomyces cell factories. BIORESOURCE TECHNOLOGY 2023; 376:128836. [PMID: 36898554 DOI: 10.1016/j.biortech.2023.128836] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/02/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
Streptomyces genera serve as adaptable cell factories for secondary metabolites with various and distinctive chemical structures that are relevant to the pharmaceutical industry. Streptomyces' complex life cycle necessitated a variety of tactics to enhance metabolite production. Identification of metabolic pathways, secondary metabolite clusters, and their controls have all been accomplished using genomic methods. Besides this, bioprocess parameters were also optimized for the regulation of morphology. Kinase families were identified as key checkpoints in the metabolic manipulation (DivIVA, Scy, FilP, matAB, and AfsK) and morphology engineering of Streptomyces. This review illustrates the role of different physiological variables during fermentation in the bioeconomy coupled with genome-based molecular characterization of biomolecules responsible for secondary metabolite production at different developmental stages of the Streptomyces life cycle.
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Affiliation(s)
- Mony Thakur
- Department of Microbiology, Central University of Haryana, Mahendergarh 123031, India
| | - Punit Kumar
- Department of Morphology and Physiology, Karaganda Medical University, Karaganda 100008 Kazakhstan
| | - Deepanshi Rajput
- Bioprocess Engineering Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
| | - Vinod Yadav
- Department of Microbiology, Central University of Haryana, Mahendergarh 123031, India
| | - Namrata Dhaka
- Department of Biotechnology, Central University of Haryana, Mahendergarh 123031, India
| | - Rishikesh Shukla
- Department of Biotechnology, Institute of Applied Sciences and Humanities, GLA University, Mathura- 281406, U.P., India
| | - Kashyap Kumar Dubey
- Bioprocess Engineering Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India.
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Fan J, Yao Z, Yan C, Hao M, Dai J, Zou W, Ni M, Li T, Li L, Li S, Liu J, Huang Q, Zhou R. Discovery of a highly efficient TylF methyltransferase via random mutagenesis for improving tylosin production. Comput Struct Biotechnol J 2023; 21:2759-2766. [PMID: 37181661 PMCID: PMC10172623 DOI: 10.1016/j.csbj.2023.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/11/2023] [Accepted: 04/11/2023] [Indexed: 05/16/2023] Open
Abstract
Macrolides are currently a class of extensively used antibiotics in human and animal medicine. Tylosin is not only one of the most important veterinary macrolides but also an indispensable material for the bio- and chemo-synthesis of new generations of macrolide antibiotics. Thus, improving its production yield is of great value. As the key rate-limiting enzyme catalyzing the terminal step of tylosin biosynthesis in Streptomyces fradiae (S. fradiae), TylF methyltransferase's catalytic activity directly affects tylosin yield. In this study, a tylF mutant library of S. fradiae SF-3 was constructed based on error-prone PCR technology. After two steps of screening in 24-well plates and conical flask fermentation and enzyme activity assay, a mutant strain was identified with higher TylF activity and tylosin yield. The mutation of tyrosine to phenylalanine is localized at the 139th amino acid residue on TylF (TylFY139F), and protein structure simulations demonstrated that this mutation changed the protein structure of TylF. Compared with wild-type protein TylF, TylFY139F exhibited higher enzymatic activity and thermostability. More importantly, the Y139 residue in TylF is a previously unidentified position required for TylF activity and tylosin production in S. fradiae, indicating the further potential to engineer the enzyme. These findings provide helpful information for the directed molecular evolution of this important enzyme and the genetic modification of tylosin-producing bacteria.
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Affiliation(s)
- Jingyan Fan
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhiming Yao
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Chaoyue Yan
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Meilin Hao
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Jun Dai
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Provincial Bioengineering Technology Research Center for Animal Health Products, Yingcheng 432400, China
- The HZAU-HVSEN Research Institute, Wuhan 430042, China
| | - Wenjin Zou
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Minghui Ni
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Tingting Li
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Lu Li
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- International Research Center for Animal Disease (Ministry of Science and Technology of China), Wuhan 430070, China
- Cooperative Innovation Center of Sustainable Pig Production, Wuhan 430070, China
| | - Shuo Li
- Hubei Provincial Bioengineering Technology Research Center for Animal Health Products, Yingcheng 432400, China
- The HZAU-HVSEN Research Institute, Wuhan 430042, China
| | - Jie Liu
- Hubei Provincial Bioengineering Technology Research Center for Animal Health Products, Yingcheng 432400, China
- The HZAU-HVSEN Research Institute, Wuhan 430042, China
| | - Qi Huang
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- International Research Center for Animal Disease (Ministry of Science and Technology of China), Wuhan 430070, China
- Cooperative Innovation Center of Sustainable Pig Production, Wuhan 430070, China
- Correspondence to: College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.
| | - Rui Zhou
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- International Research Center for Animal Disease (Ministry of Science and Technology of China), Wuhan 430070, China
- Cooperative Innovation Center of Sustainable Pig Production, Wuhan 430070, China
- The HZAU-HVSEN Research Institute, Wuhan 430042, China
- Correspondence to: College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.
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Manikandan A, Johnson I, Jaivel N, Krishnamoorthy R, SenthilKumar M, Raghu R, Gopal NO, Mukherjee PK, Anandham R. Gamma-induced mutants of Bacillus and Streptomyces display enhanced antagonistic activities and suppression of the root rot and wilt diseases in pulses. Biomol Concepts 2022; 13:103-118. [DOI: 10.1515/bmc-2022-0004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 02/07/2022] [Indexed: 11/15/2022] Open
Abstract
Abstract
This study aims to increase Bacillus and Streptomyces antagonistic activity against the root rot and wilt diseases of pulses caused by Macrophomina phaseolina and Fusarium oxysporum f. sp. udum, respectively. To increase antagonistic action, Bacillus subtilis BRBac4, Bacillus siamensis BRBac21, and Streptomyces cavourensis BRAcB10 were subjected to random mutagenesis using varying doses of gamma irradiation (0.5–3.0 kGy). Following the irradiation, 250 bacterial colonies were chosen at random for each antagonistic strain and their effects against pathogens were evaluated in a plate assay. The ERIC, BOX, and random amplified polymorphic studies demonstrated a clear distinction between mutant and wild-type strains. When mutants were compared to wild-type strains, they showed improved plant growth-promoting characteristics and hydrolytic enzyme activity. The disease suppression potential of the selected mutants, B. subtilis BRBac4-M6, B. siamensisi BRBac21-M10, and S. cavourensis BRAcB10-M2, was tested in green gram, black gram, and red gram. The combined inoculation of B. siamensis BRBac21-M10 and S. cavourensis BRAcB10-M2 reduced the incidence of root rot and wilt disease. The same treatment also increased the activity of the defensive enzymes peroxidase, polyphenol oxidase, and phenylalanine ammonia-lyase. These findings suggested that gamma-induced mutation can be exploited effectively to improve the biocontrol characteristics of Bacillus and Streptomyces. Following the field testing, a combined bio-formulation of these two bacteria may be utilised to address wilt and root-rot pathogens in pulses.
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Affiliation(s)
- Ariyan Manikandan
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University (TNAU) , Coimbatore 641003 , Tamil Nadu , India
| | - Iruthayasamy Johnson
- Department of Plant Pathology, Tamil Nadu Agricultural University (TNAU) , Coimbatore , Tamil Nadu , India
| | - Nanjundan Jaivel
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University (TNAU) , Coimbatore 641003 , Tamil Nadu , India
| | - Ramasamy Krishnamoorthy
- Department of Crop Management, Vanavarayar Institute of Agriculture , Pollachi , Tamil Nadu , India
| | - Murugaiyan SenthilKumar
- Department of Crop Management, Agricultural College and Research Institute, Tamil Nadu Agricultural University (TNAU) , Eachangkottai , Tamil Nadu , India
| | - Rajasekaran Raghu
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University (TNAU) , Coimbatore 641003 , Tamil Nadu , India
| | - Nellaiappan Olaganathan Gopal
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University (TNAU) , Coimbatore 641003 , Tamil Nadu , India
| | - Prasun K. Mukherjee
- Environmental Biotechnology Section Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre , Trombay , Mumbai 400085 , India
| | - Rangasamy Anandham
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University (TNAU) , Coimbatore 641003 , Tamil Nadu , India
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Jo MH, Kim B, Ju JH, Heo SY, Ahn KH, Lee HJ, Yeom HS, Jang H, Kim MS, Kim CH, Oh BR. Tremella fuciformis TFCUV5 Mycelial Culture-derived Exopolysaccharide Production and Its Anti-aging Effects on Skin Cells. BIOTECHNOL BIOPROC E 2021. [DOI: 10.1007/s12257-020-0361-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Breeding of Gluconobacter oxydans with high PQQ-dependent D-sorbitol dehydrogenase for improvement of 6-(N-hydroxyethyl)-amino-6-deoxy-α-L-sorbofuranose production. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107642] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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8
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Siddique S, Ashraf Qureshi F. Kinetics of Avermectin B1b Production by Streptomyces avermitilis 41445 UV 45(m)3 in Shake Flask Culture. IRANIAN JOURNAL OF BIOTECHNOLOGY 2020; 18:e2356. [PMID: 33850941 PMCID: PMC8035423 DOI: 10.30498/ijb.2020.2356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background: Use of avermectin B1b as anthelmintic and insecticidal agent has increased to protect soil and for enhanced crop production. Enhanced production of avermectin B1b was obtained from mutant strain of Streptomyces avermitilis 41445. Objectives: Modeling of mutant strain S. avermitilis 41445 UV 45(m) 3 growth and avermectin B1b production is therefore required for optimization during fermentation process. Kinetics of intracellular avermectin B1b production was studies in shake flask culture during submerged fermentation. Materials and Methods: Mathematical models based upon Logistic and Piret Equations have been used to investigate the kinetics of avermectin B1b production and substrate utilization from S. avermitilis 41445 UV 45(m)3. Effect of carbon sources (glucose, maltose, lactose, potato starch, soluble corn starch, and wheat starch), pH (6.0, 6.5, 7.0, and 7.5), agitation speed (150, 200, and 250 rpm) on microbial growth and product formation were evaluated. Results: Maximum avermectin B1b production (420.02mg.L-1 and cell biomass (31.74 g.L-1) were obtained in media having potato starch as carbon substrate at adjusted medium pH 7.5 and 250 rpm agitation speed. Maximum specific growth rate(µmax), growth associated avermectin B1b production coefficient (α) and non-growth associated avermectin B1b production coefficient (β) obtained were 0.16h-1, 0.0 mg.g-1 and 3.5 mg.g-1.h-1 respectively. Conclusion: From above results we can conclude that avermectin B1b production is non-growth associated process.
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Affiliation(s)
- Samia Siddique
- Department of Chemistry, Government College University, Lahore, Pakistan
| | - Fahim Ashraf Qureshi
- Office of Research, Innovation and Commercialization, Comsats Institute of Information and Technology, Chak Shahzad, Park Road, Islamabad, Pakistan
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9
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Hu HF, Zhou HY, Cheng GP, Xue YP, Wang YS, Zheng YG. Improvement of R-2-(4-hydroxyphenoxy) propionic acid biosynthesis of Beauveria bassiana by combined mutagenesis. Biotechnol Appl Biochem 2019; 67:343-353. [PMID: 31846537 DOI: 10.1002/bab.1872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 12/05/2019] [Indexed: 12/16/2022]
Abstract
R-2-(4-hydroxyphenoxy)propionicacid (HPOPA) is a valuable intermediate for the synthesis of enantiomerically pure aryloxyphenoxypropionic acid herbicides. In this work, to improve the HPOPA biosynthesis by Beauveria bassiana ZJB16002 from the substrate R-2-phenoxypropionic acid (POPA), the original HPOPA producer B. bassiana ZJB16002 was subjected to physical mutagenesis with 137 Cs-γ irradiation and chemical mutagen N-methyl-N'-nitro-N-nitrasoguanidine (NTG) induced mutagenesis. The effects of different treatment doses of the mutagens on the lethal rate and positive mutation rate were investigated, and the results showed that the optimal 137 Cs-γirradiation dose and NTG concentration was 850 Gy and 500 µg/mL, respectively. Under these conditions, a mutant strain CCN-7 with the highest HPOPA production capacity was obtained through two rounds of 137 Cs-γ irradiation treatment followed by one round of NTG mutagenesis. At the substrate (POPA) concentration of 50 g/L, HPOPA titer of CCN-7 reached 36.88 g/L, which was 9.73-fold higher than the parental strain. The morphology of the wild-type and mutant strain was compared and the results might provide helpful information in exploration of the correlation of morphology and biochemical features of B. bassiana.
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Affiliation(s)
- Hai-Feng Hu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, People's Republic of China.,The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Hai-Yan Zhou
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, People's Republic of China.,The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Gao-Ping Cheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, People's Republic of China.,The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Ya-Ping Xue
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, People's Republic of China.,The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Yuan-Shan Wang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, People's Republic of China.,The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Yu-Guo Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, People's Republic of China.,The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, People's Republic of China
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10
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Zhang HN, Ma HL, Zhou CS, Yan Y, Yin XL, Yan JK. Enhanced production and antioxidant activity of endo-polysaccharides from Phellinus igniarius mutants screened by low power He-Ne laser and ultraviolet induction. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.bcdf.2016.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Streptomyces Differentiation in Liquid Cultures as a Trigger of Secondary Metabolism. Antibiotics (Basel) 2018; 7:antibiotics7020041. [PMID: 29757948 PMCID: PMC6022995 DOI: 10.3390/antibiotics7020041] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 05/09/2018] [Accepted: 05/09/2018] [Indexed: 02/08/2023] Open
Abstract
Streptomyces is a diverse group of gram-positive microorganisms characterised by a complex developmental cycle. Streptomycetes produce a number of antibiotics and other bioactive compounds used in the clinic. Most screening campaigns looking for new bioactive molecules from actinomycetes have been performed empirically, e.g., without considering whether the bacteria are growing under the best developmental conditions for secondary metabolite production. These screening campaigns were extremely productive and discovered a number of new bioactive compounds during the so-called “golden age of antibiotics” (until the 1980s). However, at present, there is a worrying bottleneck in drug discovery, and new experimental approaches are needed to improve the screening of natural actinomycetes. Streptomycetes are still the most important natural source of antibiotics and other bioactive compounds. They harbour many cryptic secondary metabolite pathways not expressed under classical laboratory cultures. Here, we review the new strategies that are being explored to overcome current challenges in drug discovery. In particular, we focus on those aimed at improving the differentiation of the antibiotic-producing mycelium stage in the laboratory.
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12
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Bekker OB, Vatlin AA, Lysenkova LN, Shchekotikhin AE, Danilenko VN. Draft genome sequencing and analysis of mutations of Streptomyces fradiae strain ATCC19609-Olg4R, resistant to (33S)-33-deoxy-33-thiocyanatooligomycin А. RUSS J GENET+ 2017. [DOI: 10.1134/s1022795417090034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Jin HX, OuYang XK, Hu ZC. Enhancement of epoxide hydrolase production by 60
Co gamma and UV irradiation mutagenesis of Aspergillus niger
ZJB-09103. Biotechnol Appl Biochem 2016; 64:392-399. [DOI: 10.1002/bab.1502] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 04/14/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Huo-Xi Jin
- Institute of Food and Medicine; Zhejiang Ocean University; Zhoushan People's Republic of China
| | - Xiao-Kun OuYang
- Institute of Food and Medicine; Zhejiang Ocean University; Zhoushan People's Republic of China
| | - Zhong-Ce Hu
- Institute of Bioengineering; Zhejiang University of Technology; Hangzhou People's Republic of China
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Subathra Devi C, Saini A, Rastogi S, Jemimah Naine S, Mohanasrinivasan V. Strain improvement and optimization studies for enhanced production of erythromycin in bagasse based medium using Saccharopolyspora erythraea MTCC 1103. 3 Biotech 2015; 5:23-31. [PMID: 28324355 PMCID: PMC4327752 DOI: 10.1007/s13205-013-0186-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 11/20/2013] [Indexed: 10/25/2022] Open
Abstract
In the present study, Saccharopolyspora erythraea MTCC 1103 was used for the enhanced production of erythromycin. To enhance the yield of erythromycin, effects of various parameters such as bagasse concentration, organic nitrogen source, inorganic nitrogen source, pH and temperature were analysed. It was found that bagasse can be used as an alternate carbon source in erythromycin production medium. Erythromycin production in the new formulation of bagasse based medium was found to be 512 mg/L which was 28 % higher than glucose based medium. Strain improvement was done by random UV-mutagenesis. When compared to wild type strain, mutant strain showed 40 % higher yield in production medium. Erythromycin potency assay and HPLC analysis were performed to confirm the presence of erythromycin in the partially purified samples. These optimized conditions could be used for the commercial production of this unique antibiotic which gave significant industrial perspectives.
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15
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The role of volumetric power input in the growth, morphology, and production of a recombinant glycoprotein by Streptomyces lividans in shake flasks. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.06.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Moghaddam SK, Rasoulifard M, Vahedpour M, Eskandarian M. Removal of tylosin from aqueous solution by UV/nano Ag/S2O 8 2− process : Influence of operational parameters and kinetic study. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-014-0083-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Siddique S, Syed Q, Adnan A, Qureshi FA. Production and Screening of High Yield Avermectin B1b Mutant of Streptomyces avermitilis 41445 Through Mutagenesis. Jundishapur J Microbiol 2014; 7:e8626. [PMID: 25147669 PMCID: PMC4138686 DOI: 10.5812/jjm.8626] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 02/20/2013] [Accepted: 03/02/2013] [Indexed: 11/21/2022] Open
Abstract
Background: Secondary metabolite production from wild strains is very low for economical purpose therefore certain strain improvement strategies are required to achieve hundred times greater yield of metabolites. Most important strain improvement techniques include physical and chemical mutagenesis. Broad spectrum mutagenesis through UV irradiation is the most important and convenient physical method. Objectives: The present study was conducted for enhanced production of avermectin B1b from Streptomyces avermitilis 41445 by mutagenesis using ultraviolet (UV) radiation, ethidium bromide (EB), and ethyl methanesulfonate (EMS) as mutagens. Materials and Methods: S. avermitilis DSM 41445 maintained on yeast extract malt extract glucose medium (YMG) was used as inoculum for SM2 fermentation medium. Spores of S. avermitilis DSM 41445 were exposed to UV radiation for physical broad spectrum mutagenesis and to EMS and EB for chemical mutagenesis. For each mutagen, the lethality rate and mutation rate were calculated along with positive mutation rate. Results: Avermectin B1b-hyper-producing mutant, produced using these three different methods, was selected according to the HPLC results. The mutant obtained after 45 minutes of UV radiation to the spores of S. avermitilis 41445, was found to be the best mutant for the enhanced production of avermectin B1b component (254.14 mg/L). Other avermectin B1b-hyper-producing mutants, were obtained from EMS (1 µL/mL) and EB (30 µL/mL) treatments, and yielded 202.63 mg/L and 199.30 mg/L of B1b, respectively. Conclusions: The hereditary stability analysis of the UV mentioning 45 minutes revealed the UV exposure time for mutants and 3 represented the colony taken from the plate irradiated for 45 minutes mutant showed that the production of avermectin B1b remained constant and no reverse mutation occurred after 15 generations.
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Affiliation(s)
- Samia Siddique
- Department of Chemistry, Government College University Lahore, Lahore, Pakistan
| | - Quratulain Syed
- Food and Biotechnology Research Center, PCSIR Laboratories Complex, Ferozpur Lahore, Lahore, Pakistan
| | - Ahmad Adnan
- Department of Chemistry, Government College University Lahore, Lahore, Pakistan
| | - Fahim Ashraf Qureshi
- Office of Research, Innovation and Commercialization, Comsats Institute of Information and Technology, Islamabad, Pakistan
- Corresponding author: Fahim Ashraf Qureshi, Office of Research, Innovation and Commercialization, Comsats Institute of Information and Technology, Islamabad, Pakistan. Tel: +92-3334101261, Fax: +92-519247008, E-mail:
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Khaliq S, Ghauri MA, Akhtar K. Characterization of mutations in regulatory genes of Tyl cluster leading to overexpression of tylosin in mutant γ-1 of Streptomyces fradiae NRRL-2702. Appl Microbiol Biotechnol 2013; 98:785-93. [DOI: 10.1007/s00253-013-5317-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 10/02/2013] [Accepted: 10/03/2013] [Indexed: 10/26/2022]
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Zhang XY, Bao J, Zhong J, Xu XY, Nong XH, Qi SH. Enhanced production of a novel cytotoxic chromone oxalicumone A by marine-derived mutant Penicillium oxalicum SCSIO 24-2. Appl Microbiol Biotechnol 2013; 97:9657-63. [PMID: 24061416 DOI: 10.1007/s00253-013-5203-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Revised: 08/12/2013] [Accepted: 08/14/2013] [Indexed: 12/19/2022]
Abstract
Many marine natural products hold great potential for the development of new and much needed drugs. However, the production of active metabolites by marine-derived microorganisms is usually very low, and large-scale culture has to be involved to meet the need of chemical structural modification and deep pharmacy study. In order to enhance the production of a novel cytotoxic sulfur-containing chromone oxalicumone A (OA), germinating spores of a marine-derived wild strain Penicillium oxalicum SCSGAF 0023 were mutated by microwave and ultraviolet light irradiation, which led to the obtainment of a mutant P. oxalicum SCSIO 24-2 that could produce fivefold increase in OA production (3.42 ± 0.21 mg/l) as compared to the wild strain. This is the first report that germinating spores are applied in marine-derived Penicillium sp. mutating to enhance the production of OA. Further, Plackett-Burman design and central composite design were adopted to optimize the basic medium components for increasing OA production by the mutant SCSIO 24-2 in shake flasks. The results indicated that three medium components including mannitol, maltose, and L-cysteine had significant effects on OA production, and their concentrations were optimized as 36, 27.9, and 0.99 g/l, respectively. In the optimized medium, the OA production (18.31 ± 0.27 mg/l) by mutant SCSIO 24-2 was 4.4-fold higher than that in the basic medium. These results of this work promise to improve the present production of OA and may be adopted to enhance other objective products' production by marine-derived fungi.
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Affiliation(s)
- Xiao-Yong Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology/RNAM Center for Marine Microbiology/Guangdong Key Laboratory of Marine Material Medical, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou, 510301, China
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20
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Li HG, Luo W, Gu QY, Wang Q, Hu WJ, Yu XB. Acetone, butanol, and ethanol production from cane molasses using Clostridium beijerinckii mutant obtained by combined low-energy ion beam implantation and N-methyl-N-nitro-N-nitrosoguanidine induction. BIORESOURCE TECHNOLOGY 2013; 137:254-260. [PMID: 23587827 DOI: 10.1016/j.biortech.2013.03.084] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Revised: 03/10/2013] [Accepted: 03/12/2013] [Indexed: 06/02/2023]
Abstract
In order to obtain mutant strains showing higher solvent tolerance and butanol production than those of wild-type strains, the butanol-producing strain Clostridium beijerinckii L175 was subjected to mutagenesis using a combined method of low-energy ion beam implantation and N-methyl-N-nitro-N-nitrosoguanidine induction. With this effort, mutant strain MUT3 was isolated. When it was used for butanol fermentation in P2 medium, the production of butanol was 15.8±0.7 g/L 46% higher than the wild-type strain. Furthermore, after optimization of butanol production from cane molasses with MUT3, the maximum butanol production of 14.9±0.5 g/L were obtained in crew-capped bottles. When ABE production by MUT3 was carried out in a bioreactor, the production of butanol and total solvent were 15.1±0.8 g/L and 22.1±0.9 g/L, respectively. The remarkable butanol production and solvent tolerance of MUT3 make it promising for butanol production from cane molasses.
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Affiliation(s)
- Han-guang Li
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
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Screening of mutant strain Streptomyces mediolani sp. AC37 for (−)-8-O-methyltetrangomycin production enhancement. J Microbiol 2012; 50:1014-23. [DOI: 10.1007/s12275-012-2025-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Accepted: 07/20/2012] [Indexed: 10/27/2022]
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Application of a combined approach involving classical random mutagenesis and metabolic engineering to enhance FK506 production in Streptomyces sp. RM7011. Appl Microbiol Biotechnol 2012; 97:3053-62. [PMID: 23053074 DOI: 10.1007/s00253-012-4413-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 08/30/2012] [Accepted: 09/04/2012] [Indexed: 12/29/2022]
Abstract
FK506 production by a mutant strain (Streptomyces sp. RM7011) induced by N-methyl-N'-nitro-N-nitrosoguanidine and ultraviolet mutagenesis was improved by 11.63-fold (94.24 mg/l) compared to that of the wild-type strain. Among three different metabolic pathways involved in the biosynthesis of methylmalonyl-CoA, only expression of propionyl-CoA carboxylase (PCC) pathway led to a 1.75-fold and 2.5-fold increase in FK506 production and the methylmalonyl-CoA pool, respectively, compared to those of the RM7011 strain. Lipase activity of the high FK506 producer mutant increased in direct proportion to the increase in FK506 yield, from low detection level up to 43.1 U/ml (12.6-fold). The level of specific FK506 production and lipase activity was improved by enhancing the supply of lipase inducers. This improvement was approximately 1.88-fold (71.5 mg/g) with the supplementation of 5 mM Tween 80, which is the probable effective stimulator in lipase production, to the R2YE medium. When 5 mM vinyl propionate was added as a precursor for PCC pathway to R2YE medium, the specific production of FK506 increased approximately 1.9-fold (71.61 mg/g) compared to that under the non-supplemented condition. Moreover, in the presence of 5 mM Tween 80, the specific FK506 production was approximately 2.2-fold (157.44 mg/g) higher than that when only vinyl propionate was added to the R2YE medium. In particular, PCC expression in Streptomyces sp. RM7011 (RM7011/pSJ1003) together with vinyl propionate feeding resulted in an increase in the FK506 titer to as much as 1.6-fold (251.9 mg/g) compared with that in RM7011/pSE34 in R2YE medium with 5 mM Tween 80 supplementation, indicating that the vinyl propionate is more catabolized to propionate by stimulated lipase activity on Tween 80, that propionyl-CoA yielded from propionate generates methylmalonyl-CoA, and that the PCC pathway plays a key role in increasing the methylmalonyl-CoA pool for FK506 biosynthesis in RM7011 strain. Overall, these results show that a combined approach involving classical random mutation and metabolic engineering can be applied to supply the limiting factor for FK506 biosynthesis, and vinyl propionate could be successfully used as a precursor of important methylmalonyl-CoA building blocks.
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Screening and characteristics of a butanol-tolerant strain and butanol production from enzymatic hydrolysate of NaOH-pretreated corn stover. World J Microbiol Biotechnol 2012; 28:2963-71. [DOI: 10.1007/s11274-012-1107-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Accepted: 06/11/2012] [Indexed: 10/28/2022]
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Hu ZC, Zheng YG. Enhancement of 1,3-Dihydroxyacetone Production by a UV-induced Mutant of Gluconobacter oxydans with DO Control Strategy. Appl Biochem Biotechnol 2011; 165:1152-60. [DOI: 10.1007/s12010-011-9332-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Accepted: 07/27/2011] [Indexed: 10/17/2022]
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Yu G, Jia X, Wen J, Lu W, Wang G, Caiyin Q, Chen Y. Strain Improvement of Streptomyces roseosporus for Daptomycin Production by Rational Screening of He–Ne Laser and NTG Induced Mutants and Kinetic Modeling. Appl Biochem Biotechnol 2010; 163:729-43. [DOI: 10.1007/s12010-010-9078-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Accepted: 09/01/2010] [Indexed: 11/28/2022]
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Enhancement of oxytetracycline production after gamma irradiation-induced mutagenesis of Streptomyces rimosus CN08 strain. World J Microbiol Biotechnol 2010; 26:1317-22. [PMID: 24026936 DOI: 10.1007/s11274-009-0303-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2009] [Accepted: 12/30/2009] [Indexed: 10/20/2022]
Abstract
Streptomyces rimosus CN08 isolated from Tunisian soil produced 8.6 mg l(-1) of oxytetracycline (OTC) under submerged fermentation (SmF). Attempts were made for enhancing OTC production after irradiation-induced mutagenesis of Streptomyces rimosus CN08 with Co(60)-γ rays. 125 OTC-producing colonies were obtained after screening on kanamycin containing medium. One mutant called Streptomyces rimosus γ-45 whose OTC production increased 19-fold (165 mg l(-1)) versus wild-type strain was selected. γ-45 mutant was used for OTC production under solid-state fermentation (SSF). Wheat bran (WB) was used as solid substrate and process parameters influencing OTC production were optimized. Solid-state fermentation increased the yield of antibiotic production (257 mg g(-1)) when compared with submerged fermentation. Ammonium sulphate as additional nitrogen source enhanced OTC level to 298 mg g(-1). Interestingly, OTC production by γ-45 mutant was insensitive to phosphate which opens the way to high OTC production even in medium containing phosphate necessary for optimal mycelia growth.
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Khaliq S, Rashid N, Akhtar K, Ghauri MA. Production of tylosin in solid-state fermentation byStreptomyces fradiaeNRRL-2702 and its gamma-irradiated mutant (γ-1). Lett Appl Microbiol 2009; 49:635-40. [DOI: 10.1111/j.1472-765x.2009.02720.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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