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Han R, Xiang R, Li J, Wang F, Wang C. High-level production of microbial prodigiosin: A review. J Basic Microbiol 2021; 61:506-523. [PMID: 33955034 DOI: 10.1002/jobm.202100101] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/06/2021] [Accepted: 04/18/2021] [Indexed: 12/11/2022]
Abstract
Prodigiosin is a natural red pigment derived primarily from secondary metabolites of microorganisms, especially Serratia marcescens. It can also be chemically synthesized. Prodigiosin has been proven to have antitumor, antibacterial, antimalaria, anti-insect, antialgae, and immunosuppressive activities, and is gaining increasing important in the global market because of its great potential application value in clinical medicine development, environmental treatment, preparation of food additives, and so on. Due to the low efficiency of prodigiosin chemical synthesis, high-level prodigiosin of production by microorganisms are necessary for prodigiosin applications. In this paper, the production of prodigiosin by microorganism in recent decades is reviewed. The methods and strategies for increasing the yield of prodigiosin are discussed from the aspects of medium composition, additives, factors affecting production conditions, strain modification, and fermentation methods.
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Affiliation(s)
- Rui Han
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | - Roujin Xiang
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | - Jinglin Li
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | - Fengqing Wang
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | - Chuan Wang
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
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2
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Comparative transcriptome analysis reveals metabolic regulation of prodigiosin in Serratia marcescens. ACTA ACUST UNITED AC 2021. [DOI: 10.1007/s43393-021-00028-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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3
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Bhagwat A, Padalia U. Optimization of prodigiosin biosynthesis by Serratia marcescens using unconventional bioresources. J Genet Eng Biotechnol 2020; 18:26. [PMID: 32648013 PMCID: PMC7347734 DOI: 10.1186/s43141-020-00045-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 06/26/2020] [Indexed: 11/24/2022]
Abstract
BACKGROUND Prodigiosin is a naturally occurring red pigment by Serratia marcescens and having enormous medicinal properties. Recently, there is a need to develop a high-throughput and economically feasible bioprocess for the production of prodigiosin. In order to find a cost-effective alternative to individual fatty acids as substrate in industries, we tried to study the effect of different fatty acid containing oil seed cakes of peanut, sesame, and mustard as sources of substrate. The present study screened waste and unconventional bioresources for the production of prodigiosin using S. marcescens ATCC 13880. Sources with high oil content were screened for maximum production of prodigiosin. Also, various parameters like temperature, pH, and nutrient precursors were screened and optimized for the production of prodigiosin. RESULTS Scaled-up of optimized media consisting of 4% peanut oil seed cake powder, 2% sucrose, pH 7.5, temperature 28 °C, and 72 h incubation time resulted in highest production of 15.5 g/L wet biomass and 0.9 g/L of dried prodigiosin. Further, UV scan of the pigment showed maximum absorbance at 538 nm which is physiological property of the pigment. Extraction and purification of the pigment at the commercial level using the chromatographic techniques and mass spectral analysis confirmed the presence of prodigiosin. CONCLUSION Using oil-extraction leftover wastes might help in the commercial and cost-effective production of prodigiosin.
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Affiliation(s)
- Ashlesha Bhagwat
- Department of Food Engineering and Technology, Institute of Chemical Technology, Mumbai, 400019 India
| | - Unnati Padalia
- Department of Microbiology, K. J. Somaiya College of Science and Commerce, Mumbai, 400019 India
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Sakai-Kawada FE, Ip CG, Hagiwara KA, Awaya JD. Biosynthesis and Bioactivity of Prodiginine Analogs in Marine Bacteria, Pseudoalteromonas: A Mini Review. Front Microbiol 2019; 10:1715. [PMID: 31396200 PMCID: PMC6667630 DOI: 10.3389/fmicb.2019.01715] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 07/11/2019] [Indexed: 11/28/2022] Open
Abstract
The Prodiginine family consists of primarily red-pigmented tripyrrole secondary metabolites that were first characterized in the Gram-negative bacterial species Serratia marcescens and demonstrates a wide array of biological activities and applications. Derivatives of prodiginine have since been characterized in the marine γ-proteobacterium, Pseudoalteromonas. Although biosynthetic gene clusters involved in prodiginine synthesis display homology among genera, there is an evident structural difference in the resulting metabolites. This review will summarize prodiginine biosynthesis, bioactivity, and gene regulation in Pseudoalteromonas in comparison to the previously characterized species of Serratia, discuss the ecological contributions of Pseudoalteromonas in the marine microbiome and their eukaryotic hosts, and consider the importance of modern functional genomics and classic DNA manipulation to understand the overall prodiginine biosynthesis pathway.
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Affiliation(s)
- Francis E. Sakai-Kawada
- Department of Molecular Biosciences and Bioengineering, University of Hawai´i at Mānoa, Honolulu, HI, United States
| | - Courtney G. Ip
- Department of Biology, University of Hawai´i at Hilo, Hilo, HI, United States
| | - Kehau A. Hagiwara
- Institute of Marine and Environmental Technology, University of Maryland, Baltimore, Baltimore, MD, United States
- Chemical Sciences Division, National Institute of Standards and Technology, Hollings Marine Laboratory, Charleston, SC, United States
| | - Jonathan D. Awaya
- Department of Molecular Biosciences and Bioengineering, University of Hawai´i at Mānoa, Honolulu, HI, United States
- Department of Biology, University of Hawai´i at Hilo, Hilo, HI, United States
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5
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Enhanced production of prodigiosin by Serratia marcescens FZSF02 in the form of pigment pellets. ELECTRON J BIOTECHN 2019. [DOI: 10.1016/j.ejbt.2019.04.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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6
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Construction and co-cultivation of two mutant strains harboring key precursor genes to produce prodigiosin. J Biosci Bioeng 2018; 126:783-789. [DOI: 10.1016/j.jbiosc.2018.06.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/31/2018] [Accepted: 06/10/2018] [Indexed: 01/01/2023]
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7
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Hu DX, Withall DM, Challis GL, Thomson RJ. Structure, Chemical Synthesis, and Biosynthesis of Prodiginine Natural Products. Chem Rev 2016; 116:7818-53. [PMID: 27314508 PMCID: PMC5555159 DOI: 10.1021/acs.chemrev.6b00024] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The prodiginine family of bacterial alkaloids is a diverse set of heterocyclic natural products that have likely been known to man since antiquity. In more recent times, these alkaloids have been discovered to span a wide range of chemical structures that possess a number of interesting biological activities. This review provides a comprehensive overview of research undertaken toward the isolation and structural elucidation of the prodiginine family of natural products. Additionally, research toward chemical synthesis of the prodiginine alkaloids over the last several decades is extensively reviewed. Finally, the current, evidence-based understanding of the various biosynthetic pathways employed by bacteria to produce prodiginine alkaloids is summarized.
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Affiliation(s)
- Dennis X. Hu
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - David M. Withall
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Gregory L. Challis
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Regan J. Thomson
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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Arivizhivendhan KV, Boopathy R, Maharaja P, Regina Mary R, Sekaran G. Bioactive prodigiosin-impregnated cellulose matrix for the removal of pathogenic bacteria from aqueous solution. RSC Adv 2015. [DOI: 10.1039/c5ra09172a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The prodigiosin impregnated column reactor (PICCR) was developed for the removal of pathogenic bacteria from water/wastewater. The impregnation of prodigiosin on cellulose matrix significantly improved the activity and stability.
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Affiliation(s)
| | - R. Boopathy
- Environmental Technology Division
- Central Leather Research Institute (CSIR)
- Chennai – 600 020
- India
| | - P. Maharaja
- Environmental Technology Division
- Central Leather Research Institute (CSIR)
- Chennai – 600 020
- India
| | - R. Regina Mary
- PG & Research Department of Zoology
- Auxilium College
- Vellore – 623 006
- India
| | - G. Sekaran
- Environmental Technology Division
- Central Leather Research Institute (CSIR)
- Chennai – 600 020
- India
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Stella NA, Shanks RMQ. Cyclic-AMP inhibition of fimbriae and prodigiosin production by Serratia marcescens is strain-dependent. Arch Microbiol 2014; 196:323-30. [PMID: 24619531 DOI: 10.1007/s00203-014-0970-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 02/07/2014] [Accepted: 02/24/2014] [Indexed: 12/26/2022]
Abstract
The cyclic-nucleotide 3',5'-cyclic AMP (cAMP) is an ancient and widespread regulatory molecule. Previous studies have shown that fimbria production and secondary metabolite production are inhibited by cAMP in the prokaryote Serratia marcescens. This study used genetic manipulations to test the strain specificity of cAMP-cyclic-AMP receptor protein regulation of fimbria production and of the red pigment, prodigiosin. A surprising amount of variation was observed, as multicopy expression of the cAMP-phosphodiesterase gene, cpdS, conferred either an increase or decrease in fimbriae-dependent yeast agglutination and prodigiosin production depending upon the strain background. Mutation of crp, the gene coding for the cAMP-receptor protein, similarly conferred strain-dependent phenotypes. This study shows that three distinct biological properties, modulated by a conserved genetic regulatory molecule, can vary significantly among strains. Such variation can complicate the functional analysis of bacterial phenotypic properties which are dependent upon global genetic regulators such as cAMP.
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Affiliation(s)
- Nicholas A Stella
- Charles T. Campbell Laboratory of Ophthalmic Microbiology, Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PA, 15213, USA,
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10
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Liu X, Wang Y, Sun S, Zhu C, Xu W, Park Y, Zhou H. Mutant breeding of Serratia marcescens strain for enhancing prodigiosin production and application to textiles. Prep Biochem Biotechnol 2013; 43:271-84. [PMID: 23379274 DOI: 10.1080/10826068.2012.721850] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Microwaves have been used as a mutant agent to select mutant strains with high-yield and high-purity pigment. Mass spectrometry and nuclear magnetic resonance spectroscopic techniques were used to elucidate the structures of the pigment. High-performance liquid chromatography was used to measure pigment purity. The analysis of the mutant strain showed that pigment yield increased by 109% and was 98% pure. Prodigiosin in ethanol solution had good stability under ambient temperature and natural indoor light. However, prodigiosin rapidly decomposed under intense sunlight. Prodigiosin is an ecological colorant to dye fabrics, including synthetic and natural fibers. Synthetic fabrics dyed with prodigiosin, such as polyamide and acrylic, have high colorfastness to washing (≥4th grade) and antimicrobial properties (>90%) against Escherichia coli and Staphylococcus aureus. Antimicrobial properties were significantly different between synthetic and natural fabrics. The mutant strain Serratia marcescens jx1-1, with high prodigiosin yield and purity, has promising prospects in food, cosmetic, and textile industries.
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Affiliation(s)
- Xiaoxia Liu
- College of Biological, Chemical Sciences and Engineering, Jiaxing, China.
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Chang CC, Chen WC, Ho TF, Wu HS, Wei YH. Development of natural anti-tumor drugs by microorganisms. J Biosci Bioeng 2011; 111:501-11. [PMID: 21277252 DOI: 10.1016/j.jbiosc.2010.12.026] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Revised: 12/27/2010] [Accepted: 12/30/2010] [Indexed: 10/18/2022]
Abstract
Discoveries of tumor-resistant pharmacological drugs have mainly resulted from screening of natural products and their analogs. Some are also discovered incidentally when studying organisms. The great biodiversity of microorganisms raises the possibility of producing secondary metabolites (e.g., mevastatin, lovastatin, epothilone, salinosporamide A) to cope with adverse environments. Recently, natural plant pigments with anti-tumor activities such as β-carotene, lycopene, curcumin and anthocyanins have been proposed. However, many plants have a long life cycle. Therefore, pigments from microorganisms represent another option for the development of novel anti-tumor drugs. Prodigiosin (PG) is a natural red pigment produced by microorganisms, i.e., Serratia marcescens and other gram-negative bacteria. The anti-tumor potential of PG has been widely demonstrated. The families of PG (PGs), which share a common pyrrolylpyrromethene (PPM) skeleton, are produced by various bacteria. PGs are bioactive pigments and are known to exert immunosuppressive properties, in vitro apoptotic effects, and in vivo anti-tumor activities. Currently the most common strain used for producing PGs is S. marcescens. However, few reports have discussed PGs production. This review therefore describes the development of an anti-tumor drug, PG, that can be naturally produced by microorganisms, and evaluates the microbial production system, fermentation strategies, purification and identification processes. The application potential of PGs is also discussed.
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Affiliation(s)
- Chia-Che Chang
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan
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Kim D, Lee JS, Park YK, Kim JF, Jeong H, Oh TK, Kim BS, Lee CH. Biosynthesis of antibiotic prodiginines in the marine bacterium Hahella chejuensis KCTC 2396. J Appl Microbiol 2007; 102:937-44. [PMID: 17381736 DOI: 10.1111/j.1365-2672.2006.03172.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS Hahella chejuensis KCTC 2396 produces red pigments, showing antibacterial and algicidal activities. The main red-coloured metabolite of the pigments was identified as antibiotic prodigiosin. With the expectation that the red pigments are a mixture of a series of close relatives, the aim of the present study is to detect new antibiotic prodigiosin analogues and to analyse the biosynthetic pattern for prodiginines in KCTC 2396. METHODS AND RESULTS Except prodigiosin, the other constituents in the red pigments were confirmed as well-known dipyrrolyldipyrromethene prodigiosin, norprodigiosin, and undecylprodiginine. Additionally, four new prodigiosin analogues, each of which was distinguished from prodigiosin (C(5)), according to differences in alkyl chain length (C(3)-C(7)), were detected in small quantities by liquid chromatography mass spectrometry/mass spectrometry spectroscopy. Owing to the presence of a cytotoxic methoxy group, it is expected that all the new prodigiosin analogues are bioactive. CONCLUSIONS Four characterized prodiginines, including prodigiosin and four new prodigiosin analogues are produced in different ratio in KCTC 2396. All of the prodiginines possess a common linear tripyrrolyl structure and a cytotoxic methoxy group. SIGNIFICANCE AND IMPACT OF THE STUDY This study shows for the first time that KCTC 2396 is able to produce antibiotic prodigiosin, undecylprodiginine and new prodigiosin analogues in a mixture of pigments. It is also shown that KCTC 2396 possesses a novel system for the simultaneous production of multiple prodiginines in a single micro-organism.
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Affiliation(s)
- D Kim
- Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333, Korea
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Williamson NR, Fineran PC, Leeper FJ, Salmond GPC. The biosynthesis and regulation of bacterial prodiginines. Nat Rev Microbiol 2006; 4:887-99. [PMID: 17109029 DOI: 10.1038/nrmicro1531] [Citation(s) in RCA: 359] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The red-pigmented prodiginines are bioactive secondary metabolites produced by both Gram-negative and Gram-positive bacteria. Recently, these tripyrrole molecules have received renewed attention owing to reported immunosuppressive and anticancer properties. The enzymes involved in the biosynthetic pathways for the production of two of these molecules, prodigiosin and undecylprodigiosin, are now known. However, the biochemistry of some of the reactions is still poorly understood. The physiology and regulation of prodiginine production in Serratia and Streptomyces are now well understood, although the biological role of these pigments in the producer organisms remains unclear. However, research into the biology of pigment production will stimulate interest in the bioengineering of strains to synthesize useful prodiginine derivatives.
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Affiliation(s)
- Neil R Williamson
- Department of Biochemistry, Tennis Court Road, University of Cambridge, UK
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Feng JS, Qian HL, Tsang JC. Separation and Detection of Monopyrrole and Bipyrrole Precursors of Prodigiosin fromSerratia marcescensby a Combined Method of High Performance Liquid Chromatography and Syntrophic Pigment Synthesis. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/01483918208067591] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Song MJ, Bae J, Lee DS, Kim CH, Kim JS, Kim SW, Hong SI. Purification and characterization of prodigiosin produced by integrated bioreactor from Serratia sp. KH-95. J Biosci Bioeng 2006; 101:157-61. [PMID: 16569612 DOI: 10.1263/jbb.101.157] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2005] [Accepted: 11/08/2005] [Indexed: 11/17/2022]
Abstract
To date, prodigiosin and its analogues which have been shown to have anticancer, cytotoxic and immunosuppressive activities have been isolated from Serratia, Pseudomonas and Streptomyces species, and chemically synthesized. In a previous study, the red pigment content in Serratia sp. KH-95 was enhanced using a casein-enriched medium. Recently, an integrated bioreactor with an internal adsorbent has been developed to increase the production yield and allow easy recovery of the pigment. Thus, this study focused on both purifying and identifying a single red pigment from several pigments attached to the adsorbent in an integrated bioreactor. The red pigment was extracted directly from the internal adsorbent using acidified methanol and phase separation. Subsequently, it was purified by silica gel chromatography and high performance liquid chromatograph (HPLC). As a result, pure prodigiosin was identified by structural studies as a pigment. Also, this downstream procedure that uses the integrated bioreactor can be applied to the direct production and purification of other prodigiosin analogues and hydrophobic alkaloid compounds from several microorganisms.
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Affiliation(s)
- Min-Jung Song
- Department of Chemical and Biological Engineering, Korea University, Seoul 136-701, Korea
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Wei YH, Yu WJ, Chen WC. Enhanced undecylprodigiosin production from Serratia marcescens SS-1 by medium formulation and amino-acid supplementation. J Biosci Bioeng 2005; 100:466-71. [PMID: 16310739 DOI: 10.1263/jbb.100.466] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2005] [Accepted: 07/01/2005] [Indexed: 11/17/2022]
Abstract
Serratia marcescens Simon Swift-1 (SS-1) was used to produce a prodigiosin-like pigment, undecylprodigiosin (UP), known to have antitumor activities and potential as an anticancer drug. Modified media containing components of Luria-Bertani (LB) broth and selected amino acids were used to improve UP production from S. marcescens SS-1. Optimal culture conditions (e.g., temperature, pH, agitation rate) for UP production were also identified. It was found that S. marcescens SS-1 was able to produce 690 mg l-1 of UP when it was grown with 5 g l-1 yeast extract alone (YE medium) under the optimal culture conditions of 30 degrees C, 200 rpm, and pH 8. The UP production of 690 mg l-1 is nearly 23-fold of that obtained from original LB medium. Addition of amino acids containing pyrrole-like structures further enhanced UP production. Nearly 2 and 1.4 g l-1 of UP was produced when the SS-1 strain was cultivated with YE medium supplemented with proline and histidine (5 g l-1), respectively. Moreover, the addition of aspartic acid (5 g l-1) also resulted in a high UP production of 1.4 g l-1. Optimal dosages of the three amino acids were subsequently determined and the highest UP production (2.5 g l-1) was achieved with the addition of 10 g l-1 of proline. This suggests that the supplementation of amino acids related to the formation of a UP precursor (e.g., pyrrolylpyrromethene) could enhance UP production by the SS-1 strain.
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Affiliation(s)
- Yu-Hong Wei
- Graduate School of Biotechnology and Bioinformatics, Yuan-Ze University, Chung-Li, Taoyuan 320, Taiwan.
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Wei YH, Chen WC. Enhanced production of prodigiosin-like pigment from Serratia marcescens SMdeltaR by medium improvement and oil-supplementation strategies. J Biosci Bioeng 2005; 99:616-22. [PMID: 16233840 DOI: 10.1263/jbb.99.616] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2005] [Accepted: 03/31/2005] [Indexed: 11/17/2022]
Abstract
Serratia marcescens SMdeltaR, an SpnR-defective isogenic mutant of S. marcescens SS-1, was used to produce a prodigiosin-like pigment (PLP). Luria-Bertani (LB) broth, frequently used for prodigiosin biosynthesis with S. marcescens strains, was modified by increasing the concentrations of tryptone and yeast extract while completely removing NaCl from the medium. The resulting modified LB (MLB) medium achieved an almost 3.0-fold increase in PLP yield (152 mg l(-1)) when compared with the original LB broth. The addition of vegetable oils (2-6% [v/v]) to the fermentation broth markedly enhanced PLP production. PLP yields of 525, 579, and 790 mg l(-1) were obtained when the MLB medium was supplemented with 4% soybean oil, 4% olive oil and 6% sunflower oil, respectively. PLP production was found to be positively correlated with extracellular surface emulsification activity, suggesting a link between the PLP production and the presence of biosurfactant. This work shows that the optimal medium for PLP yield was sunflower oil (6%)-supplemented MLB medium, which resulted in an approximately 14-fold higher PLP yield than that in LB broth. Mass spectrometry and NMR analysis indicated that the PLP product is a prodigiosin derivative, called undecylprodigiosin.
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Affiliation(s)
- Yu-Hong Wei
- Graduate School of Biotechnology and Bioinformatics, Yuan-Ze University, Chung-Li, Taoyuan 320, Taiwan.
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Williamson NR, Simonsen HT, Ahmed RAA, Goldet G, Slater H, Woodley L, Leeper FJ, Salmond GPC. Biosynthesis of the red antibiotic, prodigiosin, in Serratia: identification of a novel 2-methyl-3-n-amyl-pyrrole (MAP) assembly pathway, definition of the terminal condensing enzyme, and implications for undecylprodigiosin biosynthesis in Streptomyces. Mol Microbiol 2005; 56:971-89. [PMID: 15853884 DOI: 10.1111/j.1365-2958.2005.04602.x] [Citation(s) in RCA: 171] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The biosynthetic pathway of the red-pigmented antibiotic, prodigiosin, produced by Serratia sp. is known to involve separate pathways for the production of the monopyrrole, 2-methyl-3-n-amyl-pyrrole (MAP) and the bipyrrole, 4-methoxy-2,2'-bipyrrole-5-carbaldehyde (MBC) which are then coupled in the final condensation step. We have previously reported the cloning, sequencing and heterologous expression of the pig cluster responsible for prodigiosin biosynthesis in two Serratia sp. In this article we report the creation of in-frame deletions or insertions in every biosynthetic gene in the cluster from Serratia sp. ATCC 39006. The biosynthetic intermediates accumulating in each mutant have been analysed by LC-MS, cross-feeding and genetic complementation studies. Based on these results we assign specific roles in the biosynthesis of MBC to the following Pig proteins: PigI, PigG, PigA, PigJ, PigH, PigM, PigF and PigN. We report a novel pathway for the biosynthesis of MAP, involving PigD, PigE and PigB. We also report a new chemical synthesis of MAP and one of its precursors, 3-acetyloctanal. Finally, we identify the condensing enzyme as PigC. We reassess the existing literature and discuss the significance of the results for the biosynthesis of undecylprodigiosin by the Red cluster in Streptomyces coelicolor A3(2).
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Gossauer A. Monopyrrolic natural compounds including tetramic acid derivatives. FORTSCHRITTE DER CHEMIE ORGANISCHER NATURSTOFFE = PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS. PROGRES DANS LA CHIMIE DES SUBSTANCES ORGANIQUES NATURELLES 2003; 86:1-188. [PMID: 12899123 DOI: 10.1007/978-3-7091-6029-9_1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Albert Gossauer
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
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Montaner B, Pérez-Tomás R. The cytotoxic prodigiosin induces phosphorylation of p38-MAPK but not of SAPK/JNK. Toxicol Lett 2002; 129:93-8. [PMID: 11879978 DOI: 10.1016/s0378-4274(01)00477-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Prodigiosin (PG) is a red pigment produced by Serratia marcescens, with cytotoxic and immunosuppressive activity. It induces apoptosis in several cancer cell lines, including Jurkat-T cells. Here we examine the role of two stress-stimulated kinase cascades in this induction. Time course experiments using polyclonal antibodies showed that p38-MAPK phosphorylation began at 15 min and lasted for 3 h, whereas JNK was not phosphorylated, although both proteins were present. SB203580, a selective inhibitor of p38-MAPK, blocked its phosphorylation in PG-treated cells. Taken together, these data suggest that the PG induces phosphorylation of p38-MAPK but not of SAPK/JNK and that it increases the expression of both c-jun and c-fos oncoproteins.
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Affiliation(s)
- Beatriz Montaner
- Cancer Cell Biology Research Group, Departament de Biologia Cellular i Anatomia Patològica, Universitat de Barcelona, Pavelló Central, 5a planta, LR 5.1, C/Feixa Llarga s/n, E-08907 L'Hospitalet, Barcelona, Spain
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Montaner B, Navarro S, Piqué M, Vilaseca M, Martinell M, Giralt E, Gil J, Pérez-Tomás R. Prodigiosin from the supernatant of Serratia marcescens induces apoptosis in haematopoietic cancer cell lines. Br J Pharmacol 2000; 131:585-93. [PMID: 11015311 PMCID: PMC1572367 DOI: 10.1038/sj.bjp.0703614] [Citation(s) in RCA: 131] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2000] [Revised: 06/26/2000] [Accepted: 07/20/2000] [Indexed: 11/09/2022] Open
Abstract
The effects of supernatant from the bacterial strain Serratia marcescens 2170 (CS-2170) on the viability of different haematopoietic cancer cell lines (Jurkat, NSO, HL-60 and Ramos) and nonmalignant cells (NIH-3T3 and MDCK) was studied. We examined whether this cytotoxic effect was due to apoptosis, and we purified the molecule responsible for this effect and determined its chemical structure. Using an MTT assay we showed a rapid (4 h) decrease in the number of viable cells. This cytotoxic effect was due to apoptosis, according to the fragmentation pattern of DNA, Hoechst 33342 staining and FACS analysis of the phosphatidylserine externalization. This apoptosis was blocked by using the caspase inhibitor Z-VAD.fmk, indicating the involvement of caspases. Prodigiosin is a red pigment produced by various bacteria including S. marcescens. Using mutants of S. marcescens (OF, WF and 933) that do not synthesize prodigiosin, we further showed that prodigiosin is involved in this apoptosis. This evidence was corroborated by spectroscopic analysis of prodigiosin isolated from S. marcescens. These results indicate that prodigiosin, an immunosuppressor, induces apoptosis in haematopoietic cancer cells with no marked toxicity in nonmalignant cells, raising the possibility of its therapeutic use as an antineoplastic drug.
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Affiliation(s)
- Beatriz Montaner
- Departament de Biologia Cellular i Anatomia Patològica, Unitat de Proliferació i Diferenciació Cellular, Universitat de Barcelona, Barcelona, Spain
| | - Sira Navarro
- Departament de Biologia Cellular i Anatomia Patològica, Unitat de Proliferació i Diferenciació Cellular, Universitat de Barcelona, Barcelona, Spain
| | - Maria Piqué
- Departament de Ciències Fisiològiques II, Unitat de Bioquímica, Universitat de Barcelona, Barcelona, Spain
| | - Marta Vilaseca
- Laboratori d'Espectrometria de Masses, Universitat de Barcelona, Barcelona, Spain
| | - Marc Martinell
- Departament de Química Orgànica, Universitat de Barcelona, Barcelona, Spain
| | - Ernest Giralt
- Departament de Química Orgànica, Universitat de Barcelona, Barcelona, Spain
| | - Joan Gil
- Departament de Ciències Fisiològiques II, Unitat de Bioquímica, Universitat de Barcelona, Barcelona, Spain
| | - Ricardo Pérez-Tomás
- Departament de Biologia Cellular i Anatomia Patològica, Unitat de Proliferació i Diferenciació Cellular, Universitat de Barcelona, Barcelona, Spain
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22
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Solé M, Rius N, Francia A, Lorén JG. The effect of pH on prodigiosin production by non-proliferating cells of Serratia marcescens. Lett Appl Microbiol 1994; 19:341-4. [PMID: 7765446 DOI: 10.1111/j.1472-765x.1994.tb00470.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The synthesis of prodigiosin by non-proliferating cells of Serratia marcescens was examined at various pH values between 5.5 and 9.5. During incubation in unbuffered medium, pH changed and prodigiosin production was similar regardless of the initial pH. Variations in pigment production were noted when buffers were employed in cultures of non-proliferating cells. The optimum pH for prodigiosin production was 8.0-8.5. Proline oxidase was also measured. The results suggest that the effect of pH may be related to the amount of proline which can be incorporated into prodigiosin.
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Affiliation(s)
- M Solé
- Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Spain
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23
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Abstract
A protein associated to prodigiosin formation was found in Serratia marcescens. The protein was not found in nonpigmented strains and was correlated with the pigment level. The protein was about 100 kilodaltons (kDa) and was also found in nonpigmented bacteria of the pigmented strain grown in glucose medium, at high temperature, or under anaerobic condition. The 100 kDa protein was found not in the outer membrane and the periplasm, but in the inner membrane and/or the cytoplasm. The protein was also found singly or dominantly in pigment-protein complexes and pigment-localizing vesicles described in previous reports. These results suggest that the 100 kDa protein is associated with prodigiosin formation.
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Affiliation(s)
- N Kobayashi
- Department of Bacteriology, Saitama Medical School
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24
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Paruchuri DK, Harshey RM. Flagellar variation in Serratia marcescens is associated with color variation. J Bacteriol 1987; 169:61-5. [PMID: 3539927 PMCID: PMC211733 DOI: 10.1128/jb.169.1.61-65.1987] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The pigmented enterobacterium Serratia marcescens, an opportunistic pathogen, shows a striking variation of its red color. Different strains differ greatly both in color and in the frequency with which they produce color variants. Within a strain, the variations occur at constant rates and are reversible. During an investigation of this phenomenon we observed that variation of a 39-kilodalton protein in S. marcescens 274 is closely associated with color variation. Using antibodies to this protein we identified it as being a component of the bacterial flagella. Variation of surface proteins often provides an organism with alternate offense-defense strategies for survival in a challenging environment. The pigment, in association with flagella, may provide such a function for S. marcescens.
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25
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Kobayashi N, Ichikawa Y. Diversity of prodigiosin content in the stationary phase organisms of Serratia marcescens fractionated by Ficoll density gradient centrifugation. Microbiol Immunol 1983; 27:897-9. [PMID: 6366479 DOI: 10.1111/j.1348-0421.1983.tb00654.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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26
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Feng JS, Webb JW, Tsang JC. Enhancement by Sodium Dodecyl Sulfate of Pigment Formation in
Serratia marcescens
O8. Appl Environ Microbiol 1982; 43:850-3. [PMID: 16345993 PMCID: PMC241931 DOI: 10.1128/aem.43.4.850-853.1982] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Three methods were used to determine the enhancement by sodium dodecyl sulfate (SDS) of prodigiosin formation in
Serratia marcescens
O8. The results of the agar disk diffusion method indicated that pigment formation was dependent upon the concentration of SDS. Diameters of the pigment zones were proportional to the logarithm of SDS concentrations of 300 to 1,500 μg/ml. When bacteria were grown in broth containing SDS from 0 to 800 μg/ml and the pigment extracts were analyzed spectrophotometrically, a similar enhancement of pigment formation was observed. Finally, these results were confirmed by high-performance liquid chromatographic analysis of the extracts. Prodigiosin appeared to be the sole component with increased synthesis. The possible mechanism of the SDS enhancement effect could be explained by an increase in negative binding sites by the association of SDS with a cell envelope component(s). These binding sites may be required for prodigiosin synthesis.
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Affiliation(s)
- J S Feng
- Department of Chemistry, Illinois State University, Normal, Illinois 61761
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27
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Muto Y, Tsuji A, Kaneko Y, Goto S. Relationship between pigment producibility and drug resistance in Serratia marcescens. Microbiol Immunol 1981; 25:1101-8. [PMID: 7035842 DOI: 10.1111/j.1348-0421.1981.tb00118.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Among the clinical isolates of Serratia marcescens, non-pigmented cells appeared more frequently from pigmented, drug-resistant strains than from pigmented, drug-sensitive strains. Transfer of R plasmid from Escherichia coli to pigmented strains caused spontaneous loss of pigment producibility, whereas such spontaneous loss never occurred in fresh cultures of drug-sensitive strains. The non-pigmented strain was a better recipient of R plasmid from E. coli than was the pigmented strain. R plasmid was transferred from the non-pigmented strain to the pigmented strain at a higher frequency than from E. coli to the pigmented strain. The results of the present investigation suggest that transfer of R plasmid may be one of the reasons for the significant increase of non-pigmented, drug-resistant strains of S. marcescens in nature.
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28
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Katz DS, Sobieski RJ. Detection of pigment precursors in white clinical strains of Serratia marcescens. J Clin Microbiol 1979; 9:301-3. [PMID: 372232 PMCID: PMC273016 DOI: 10.1128/jcm.9.2.301-303.1979] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Filter paper strips containing a pigment precursor extracted from Serratia marcescens strain 933 were used to determine whether white, clinical S. marcescens strains could form pigment syntrophically. In all, 114 strains (113 of clinical origin) were tested, and 99% were found to develop colors ranging from violets to pinks.
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Lim DV, Qadri SM, Nichols C, Williams RP. Biosynthesis of prodigiosin by non-proliferating wild-type Serratia marcescens and mutants deficient in catabolism of alanine, histidine, and proline. J Bacteriol 1977; 129:124-30. [PMID: 318635 PMCID: PMC234904 DOI: 10.1128/jb.129.1.124-130.1977] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Mutants of Serratia marcescens Nima, designated as Aut, Hut, or Put, did not utilize L-alanine, L-histidine, or L-proline, respectively, as a sole carbon source but did utilize other amino acids or glycerol as carbon sources. The bacteria were permeable to alanine, histidine, and proline but lacked the enzymes responsible for degradation of these amino acids. The Aut mutant contained no L-alanine dehydrogenase activity, whereas the Hut and Put mutants contained only 7 and 4% of the histidase and proline oxidase activities, respectively, found in the wild-type strain. Rates of oxygen uptake and protein synthesis were significantly lower when the mutants were incubated in the presence of amino acids they could not degrade. Studies of L-[14C]alanine, L-[14C]histidine, and L-[14C]proline incorporation into prodigiosin synthesized by these mutants and the wild-type strain revealed that proline was incorporated intact, whereas all of alanine except the carboxyl group was incorporated into the pigment molecule. Histidine did not enter prodigiosin directly. These data suggested that the presence of unique biosynthetic pathways, independent of primary metabolism, leads to formation of prodigiosin from specific amino acids.
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30
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Scott RH, Qadri SM, Williams RP. Role of L-proline in the biosynthesis of prodigiosin. Appl Environ Microbiol 1976; 32:561-6. [PMID: 791123 PMCID: PMC170306 DOI: 10.1128/aem.32.4.561-566.1976] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Nonproliferating cells of Serratia marcescens, wild-type strain Nima, synthesized the pigment, prodigiosin, when saline suspensions were incubated with aeration at 27 degrees C in the presence of proline or alanine. Mutants PutS1 and PutS2 derived from strain Nima formed prodigiosin from alanine, but not from proline, unless alanine also was added. Strain Nima utilized proline as a sole source of carbon and of nitrogen for growth, whereas Put mutants did not. Investigation of enzymes degrading proline showed that the wild-type strain contained proline oxidase, which was absent in Put mutants. The wild type, as well as the mutants, utilized alanine as the sole source of carbon and nitrogen for growth. Although nonproliferating cells of Put mutants failed to synthesize prodigiosin from proline, addition of L-[U-14C]proline to suspensions metabolizing and synthesizing the pigment because of addition of alanine resulted in the incorporation of radioactive label into prodigiosin, as well as into cellular protein. Since Put mutants could not catabolize proline, the incorporation of [14C]proline into the prodigiosin molecule indicated that proline was incorporated directly into the pigment.
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31
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Lim DV, Qadri SM, Williams RP. Incorporation of proline into prodigiosin by a Put mutant of Serratia marcesens. Appl Environ Microbiol 1976; 31:738-42. [PMID: 5953 PMCID: PMC291186 DOI: 10.1128/aem.31.5.738-742.1976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A Put mutant of Serratia marcescens, deficient in proline oxidase and therefore unable to degrade proline, was used to assay for an enzymatic reaction responsible for incorporation of proline into prodigiosin. The reaction had a pH optimum of 7.5 and a Km of 1.1 X 10(-4) M at 27 C. At temperatures above 27 C, the velocity of the reaction decreased with increasing temperature and little activity was detected at 42 C. Activity of the enzyme was directly proportional to the quantity of pigment formed and was inhibited by thioproline, a substrate analog. These data suggested the presence of a unique and specific enzyme in the biosynthetic pathway for prodigiosin.
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32
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Lawanson AO, Sholeye FO. Inhibition of prodigiosin formation in Serratia marcescens by adenosine triphosphate. EXPERIENTIA 1976; 32:439-40. [PMID: 773662 DOI: 10.1007/bf01920782] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
ATP, inorganic phosphate and ribose inhibited prodigiosin formation in Serratia marcescens, but adenine did not. ATP was not hydrolyzed by the organism during the experiment.
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33
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Williams RP, Scott RH, Lim DV, Qadri SM. Macromolecular syntheses during biosynthesis of prodigiosin by Serratia marcescens. Appl Environ Microbiol 1976; 31:70-7. [PMID: 782359 PMCID: PMC169721 DOI: 10.1128/aem.31.1.70-77.1976] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Amino acids that were utilized as sole sources of carbon and nitrogen for growth of Serratia marcescens Nima resulted in biosynthesis of prodigiosin in non-proliferating bacteria. Addition of alanine, proline, or histidine to non-proliferating cells incubated at 27 C increased the rate of protein synthesis and also caused biosynthesis of prodigiosin. No increase in the rate of protein synthesis was observed upon the addition of amino acids that did not stimulate prodigiosin biosynthesis. Increased rates of synthesis of ribonucleic acid (RNA) and of deoxyribonucleic acid (DNA) (a small amount) also occurred after addition of amino acids that resulted in biosynthesis of prodigiosin. After incubation of 24 h, the total amount of protein in suspensions of bacteria to which alanine or proline was added increased 67 and 98%, respectively. Total amounts of DNA and of RNA also increased before synthesis of prodigiosin. The amounts of these macromolecules did not increase after addition of amino acids that did not induce biosynthesis of progidiosin. However, macromolecular synthesis was not related only to prodigiosin biosynthesis because the rates of DNA, RNA, and protein synthesis also increased in suspensions of bacteria incubated with proline at 39 C, at which temperature no prodigiosin was synthesized. The quantities of DNA, RNA, and protein synthesized were lower in non-proliferating cells than in growing cells. The data indicated that amino acids causing biosynthesis of prodigiosin in non-proliferating cells must be metabolized and serve as sources of carbon and of nitrogen for synthesis of macromolecules and intermediates. Prodigiosin was synthesized secondarily to these primary metabolic events.
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Abstract
Methionine alone did not allow biosynthesis of prodigiosin (2-methyl-3-amyl-6-methoxyprodigiosene) in nonproliferating cells (NPC) of Serratia marcescens strain Nima. However, when methionine was added to NPC synthesizing prodigiosin in the presence of other amino acids, the lag period for synthesis of prodigiosin was shortened, an increased amount of the pigment was formed, and the optimal concentrations of the other amino acids were reduced. Less prodigiosin was synthesized when addition of methionine was delayed beyond 4 h. The specific activity of prodigiosin synthesized by addition of (14)CH(3)-methionine was 40 to 50 times greater than that synthesized from methionine-2-(14)C or (14)COOH-methionine. NPC of mutant OF of S. marcescens synthesized norprodigiosin (2-methyl-3-amyl-6-hydroxyprodigiosene), and the specific activity of this pigment synthesized in the presence of (14)CH(3)-methionine was only 5 to 13 times greater than that synthesized from methionine-2-(14)C or (14)COOH-methionine. A particulate, cell-free extract of mutant WF of S. marcescens methylated norprodigiosin to form prodigiosin. When the extract was added to NPC of mutant OF synthesizing norprodigiosin in the presence of (14)CH(3)-methionine, the prodigiosin formed had 80% greater specific activity than the norprodigiosin synthesized in the absence of the extract. The C6 hydroxyl group of norprodigiosin was methylated in the presence of the extract and methionine. Biosynthesis of prodigiosin by NPC of strain Nima also was augmented by addition of S-adenosylmethionine. Various analogues of methionine such as norleucine, norvaline, ethionine, and alpha-methylmethionine did not affect biosynthesis of prodigiosin by NPC either in the presence or absence of methionine.
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35
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Silverman MP, Munoz EF. Effect of iron and salt on prodigiosin synthesis in Serratia marcescens. J Bacteriol 1973; 114:999-1006. [PMID: 4576415 PMCID: PMC285356 DOI: 10.1128/jb.114.3.999-1006.1973] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Serratia marcescens wild-types ATCC 264 and Nima grew but did not synthesize prodigiosin in a glycerol-alanine medium containing 10 ng of Fe per ml. Wild-type 264 required the addition of 0.2 mug of Fe per ml for maximal growth and prodigiosin synthesis; Nima required 0.5 mug of Fe per ml. Three percent, but not 0.1%, sea salts inhibited prodigiosin synthesis in a complex medium containing up to 10 mug of Fe per ml. NaCl was the inhibitory sea salt component. The inhibition was not specific for NaCl; equimolar concentrations of Na(2)SO(4), KCl, and K(2)SO(4) also inhibited prodigiosin synthesis. Experiments with strains 264 and Nima and with mutant WF which cannot synthesize 4-methoxy-2-2'-bipyrrole-5-carboxyaldehyde (MBC), the bipyrrole moiety of prodigiosin, and with mutant 9-3-3 which cannot synthesize the monopyrrole moiety 2-methyl-3-amylpyrrole (MAP) showed that both MBC synthesis and the reaction condensing MAP and MBC to form prodigiosin were relatively more sensitive to NaCl inhibition than the MAP-synthesizing step. The capacity of whole cells to condense MAP and MBC was present, but inactive, in cells grown in NaCl; removal of the NaCl from non-proliferating salt-grown cells restored the activity. Other evidence suggests the existence of a common precursor to the MAP- and MBC-synthesizing pathways.
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Abstract
Prodigiosenes (prodigiosin and prodigiosin-like pigments) are known to be synthesized by only one genus of Eubacteriales and by two genera of Actinomycetales. Biosynthesis by Serratia marcescens occurs over a relatively narrow range of temperatures, although the bacteria grow over a broad range. When cultures of S. marcescens were incubated at 27 C in 1.0% casein hydrolysate, viable count and protein attained maximal values within 24 to 48 h, whereas prodigiosin did not reach a maximum until 96 h. The greatest amount of pigment was synthesized when cultures were in the senescent phase of growth. Suspensions of nonproliferating bacteria incubated at 27 C in only L-alanine also synthesized prodigiosin, although at a slower rate than growing cultures. Kinetics of growth for the wild-type, red S. marcescens and a white mutant were identical when incubated at 27 C, but the wild type produced abundant pigment. These results plus other data obtained from the literature suggest that prodigiosin is a secondary metabolite. The importance of this proposal to understanding the function of prodigiosin in S. marcescens is discussed.
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37
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Deol BS, Alden JR, Still JL, Winkler J, Robertson AV. The isolation and characterization of monopyrroles from Serratia marcescens. Biochem Biophys Res Commun 1972; 47:1378-85. [PMID: 4557173 DOI: 10.1016/0006-291x(72)90225-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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38
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Qadri SM, Williams RP. Induction of prodigiosin biosynthesis after shift-down in temperature of nonproliferating cells of Serratia marcescens. Appl Microbiol 1972; 23:704-9. [PMID: 4553139 PMCID: PMC380422 DOI: 10.1128/am.23.4.704-709.1972] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Nonpigmented bacteria obtained by growth of Serratia marcescens at 38 C synthesized prodigiosin at 25 C if certain individual amino acids were added to cultures of nonproliferating cells. In order of effectiveness, the amino acids were: DL-histidine, L-proline, L-hydroxyproline, DL-alanine, L-alanine, DL-aspartic acid, D-alanine, DL-proline, L-serine, L-ornithine, L-glutamic acid, and D-proline. DL-Histidine at its optimal concentration (20 mg/ml) induced formation of prodigiosin (198 mug of prodigiosin per mg of bacterial protein) after incubation of cultures for 54 hr. Lower concentrations (10 mg/ml) of the other amino acids usually were optimum but less prodigiosin was synthesized, and the maximal amount of pigment occurred between 36 and 48 hr. DL-Methionine was not effective alone but at a low concentration (40 mug/ml) enhanced and accelerated biosynthesis of prodigiosin in the presence of other suitable amino acids. Addition of 2 mg of L-proline per ml at 0 hr induced formation of only 30 mug of prodigiosin after incubation for 42 hr, but addition at 36 hr of 5 mg more of L-proline per ml increased synthesis to 120 mug at 42 hr. Again, DL-methionine markedly augmented prodigiosin biosynthesis in these cultures. Synthesis of prodigiosin ceased if cultures were shifted from 25 to 38 C. Prodigiosin biosynthesis by the nonproliferating cells was maximum when cultures were aerated, the amount of bacterial protein was about 2.0 mg/ml, and amino acids were added at 0 hr. Bacteria synthesized prodigiosin most efficiently when they were harvested from aerated cultures grown at 38 C for 24 hr in a complete medium in a fermentor.
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39
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Farmer JJ. Epidemiological differentiation of Serratia marcescens: typing by bacteriocin production. Appl Microbiol 1972; 23:218-25. [PMID: 4552884 PMCID: PMC380322 DOI: 10.1128/am.23.2.218-225.1972] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A new method for comparing and differentiating strains of S. marcescens is described which has proved useful in determining the epidemiology of hospital infections. Strains were grown in Trypticase soy broth, and bacteriocin production was induced with mitomycin C for 5 hr. The bacteriocin lysates were then spotted onto nine standard indicator strains, which were chosen with the aid of computer analysis from the 118 indicators tested. After 24 hr at 37 C, zones of inhibition due to bacteriocins were recorded. One hundred twentynine strains were differentiated into 72 different bacteriocin production patterns, but 11 strains were nontypable. None of the 45 other strains of Enterobacteriaceae produced bacteriocins. Bacteriocin production was a stable epidemiological marker. Colonial mutants always had identical patterns, as did the same strain which has passed from patient to patient through cross-infection. The new technique does not require any specialized equipment and can be used in laboratories with limited budgets. The applications of the new method in cross-infection studies and as a supplement to serological typing are discussed.
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40
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Qadri SM, Williams RP. Incorporation of methionine into prodigiosin. BIOCHIMICA ET BIOPHYSICA ACTA 1971; 230:181-4. [PMID: 5543328 DOI: 10.1016/0304-4165(71)90065-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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41
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