1
|
Zhu B, Cen Z, Chen Y, Shang K, Zhai J, Han M, Wang J, Chen Z, Wei T, Han Z. α-Pyrone mediates quorum sensing through the conservon system in Nocardiopsis sp. Microbiol Res 2024; 285:127767. [PMID: 38776619 DOI: 10.1016/j.micres.2024.127767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/25/2024]
Abstract
Actinobacteria produce a plethora of bioactive secondary metabolites that are often regulated by quorum-sensing signaling molecules via specific binding to their cognate TetR-type receptors. Here, we identified monocyclic α-pyrone as a new class of actinobacterial signaling molecules influencing quorum sensing process in Nocardiopsis sp. LDBS0036, primarily evidenced by a significant reduction in the production of phenazines in the pyrone-null mutant compared to the wild-type strain. Exogenous addition of the α-pyrone can partially restore the expression of some pathways to the wild strain level. Moreover, a unique multicomponent system referred to as a conservon, which is widespread in actinobacteria and generally contains four or five functionally conserved proteins, may play an important role in detecting and transmitting α-pyrone signals in LDBS0036. We found the biosynthetic gene clusters of α-pyrone and their associated conservon genes are highly conserved in Nocardiopsis, indicating the widespread prevalence and significant function of this regulate mechanism within Nocardiopsis genus. Furthermore, homologous α-pyrones from different actinobacterial species were also found to mediate interspecies communication. Our results thus provide insights into a novel quorum-sensing signaling system and imply that various modes of bacterial communication remain undiscovered.
Collapse
Affiliation(s)
- Boyu Zhu
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ziyun Cen
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yiqiu Chen
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China; Hainan University, Haikou, Hainan 570100, China
| | - Kun Shang
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China
| | - Ji'an Zhai
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meigui Han
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiawei Wang
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China; Hainan University, Haikou, Hainan 570100, China
| | - Zhiyong Chen
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China
| | - Taoshu Wei
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhuang Han
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China.
| |
Collapse
|
2
|
Shi S, Cheng Y, Wang S, Zhang X, Han F, Li X, Dong H. Improvement of the conjugation transfer of N. gerenzanensis based on the synergistic effect of quorum sensing and antibiotic interference. AMB Express 2023; 13:133. [PMID: 38006456 PMCID: PMC10676335 DOI: 10.1186/s13568-023-01641-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/09/2023] [Indexed: 11/27/2023] Open
Abstract
Nonomuraea gerenzanensis (N. gerenzanensis) is known for its ability to biosynthesize A40926, the precursor of the glycopeptide antibiotic (GPA) Dalbavancin. However, challenges and uncertainties related to the genetic manipulation of the rare actinomycetes remain. In order to improve the conjugation transfer of N. gerenzanensis, the crucial factors affecting conjugal transfer were evaluated, including agar medium, mycelial state, donor-recipient ratio, magnesium ion concentration, and antibiotic coverage time firstly. Additionally, γ-butyrolactone (GBL) for quorum sensing (QS) and antibiotics targeting bacterial walls were applied to evaluate their effects on conjugation transfer. As a result, the optimal conditions of 5%TSB of liquid medium, 24 h of the period time, V0.1 of agar medium, 30 mM of magnesium ion, the ratio 10:1 of donor-to-recipient, and 27 h of the overlaying time of antibiotic were determined. Furthermore, the results showed that autoinducer GBL and GPA teicoplanin had a synergetic effect on the conjugation transfer of N. gerenzanensis at a working concentration of 60 µM and 0.5 µg mL-1, respectively. The highest conjugation efficiency could reach about 1.3 depending on the optimal process conditions and the interference of QS and antibiotics.
Collapse
Affiliation(s)
- Shi Shi
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, 252000, People's Republic of China
| | - Yutong Cheng
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, 252000, People's Republic of China
| | - Shuai Wang
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, 252000, People's Republic of China
| | - Xiangmei Zhang
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, 252000, People's Republic of China
| | - Fubo Han
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, 252000, People's Republic of China
| | - Xiaojing Li
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, 252000, People's Republic of China
| | - Huijun Dong
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, 252000, People's Republic of China.
| |
Collapse
|
3
|
Colizzi ES, van Dijk B, Merks RMH, Rozen DE, Vroomans RMA. Evolution of genome fragility enables microbial division of labor. Mol Syst Biol 2023; 19:e11353. [PMID: 36727665 PMCID: PMC9996244 DOI: 10.15252/msb.202211353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 02/03/2023] Open
Abstract
Division of labor can evolve when social groups benefit from the functional specialization of its members. Recently, a novel means of coordinating the division of labor was found in the antibiotic-producing bacterium Streptomyces coelicolor, where specialized cells are generated through large-scale genomic re-organization. We investigate how the evolution of a genome architecture enables such mutation-driven division of labor, using a multiscale computational model of bacterial evolution. In this model, bacterial behavior-antibiotic production or replication-is determined by the structure and composition of their genome, which encodes antibiotics, growth-promoting genes, and fragile genomic loci that can induce chromosomal deletions. We find that a genomic organization evolves, which partitions growth-promoting genes and antibiotic-coding genes into distinct parts of the genome, separated by fragile genomic loci. Mutations caused by these fragile sites mostly delete growth-promoting genes, generating sterile, and antibiotic-producing mutants from weakly-producing progenitors, in agreement with experimental observations. This division of labor enhances the competition between colonies by promoting antibiotic diversity. These results show that genomic organization can co-evolve with genomic instabilities to enable reproductive division of labor.
Collapse
Affiliation(s)
- Enrico Sandro Colizzi
- Mathematical Institute, Leiden University, Leiden, The Netherlands.,Origins Center, Leiden, The Netherlands.,Sainsbury Laboratory, Cambridge University, Cambridge, UK
| | - Bram van Dijk
- Department of Microbial Population Biology, Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - Roeland M H Merks
- Mathematical Institute, Leiden University, Leiden, The Netherlands.,Origins Center, Leiden, The Netherlands.,Institute of Biology, Leiden University, Leiden, The Netherlands
| | - Daniel E Rozen
- Institute of Biology, Leiden University, Leiden, The Netherlands
| | - Renske M A Vroomans
- Origins Center, Leiden, The Netherlands.,Sainsbury Laboratory, Cambridge University, Cambridge, UK.,Informatic Institute, University of Amsterdam, Amsterdam, The Netherlands
| |
Collapse
|
4
|
Effect of γ-Heptalactone on the Morphology and Production of Monascus Pigments and Monacolin K in Monascus purpureus. J Fungi (Basel) 2022; 8:jof8020179. [PMID: 35205931 PMCID: PMC8880682 DOI: 10.3390/jof8020179] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 02/04/2023] Open
Abstract
Monascus is used widely in Asian countries and produces various biologically active metabolites, such as Monascus pigments (MPs) and monacolin K (MK). In this study, the effect of γ-heptalactone on secondary metabolites and mycelial growth during Monascus purpureus M1 fermentation was investigated. After the addition of 50 μM γ-heptalactone, the yields of MPs (yellow, orange, and red) reached maxima, increased by 115.70, 141.52, and 100.88%, respectively. The 25 μM γ-heptalactone groups showed the highest yield of MK was increased by 62.38% compared with that of the control. Gene expression analysis showed that the relative expression levels of MPs synthesis genes (MpPKS5, MpFasA2, mppB, mppC, mppD, mppG, mpp7, and mppR1/R2) were significantly upregulated after γ-heptalactone treatment. The relative expression levels of MK synthesis genes (mokA, mokC, mokE, mokH, and mokI) were significantly affected. The mycelium samples treated with γ-heptalactone exhibited more folds and swelling than that in the samples of the control group. This study confirmed that the addition of γ-heptalactone has the potential to induce yields of MPs and MK, and promote the expression of biosynthesis genes, which may be related to the transformation of mycelial morphology in M. purpureus.
Collapse
|
5
|
Bleoanca I, Patrașcu L, Borda D. Quality and Stability Equivalence of High Pressure and/or Thermal Treatments in Peach-Strawberry Puree. A Multicriteria Study. Foods 2021; 10:foods10112580. [PMID: 34828860 PMCID: PMC8622699 DOI: 10.3390/foods10112580] [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: 09/21/2021] [Revised: 10/20/2021] [Accepted: 10/23/2021] [Indexed: 11/23/2022] Open
Abstract
A bottom-up approach identifying equivalent effects of high-pressure processing (HPP—600 MPa, 20 °C, 10 min), thermal treatment (TT—70 °C, 15 min) and high pressure-mild thermal processing (HPMT—600 MPa, 50 °C, 10 min) on quality and stability of peach–strawberry puree was applied during refrigerated storage. TT and HPP ensured 3-log aerobic bacteria inactivation at first, while HPMT reduction was below the detection limit. After 21 days all samples had equivalent microbiological stability. A 2.6-fold increase in the residual activity of PPO and POD was found in the HPP sample compared to TT and HPMT samples (1st day); after 21 days PPO, POD and TPC were equivalent for TT and HPP peach–strawberry purees. Equivalent volatile profile and rheology behavior was observed after 21 days of all samples’ storage. Meanwhile, the color of the HPP, TT and HMPT samples remained significantly different (p < 0.05) throughout the whole storage period, with the lowest browning index registered for HPP samples.
Collapse
Affiliation(s)
- Iulia Bleoanca
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, 111 Domneasca Str., 800201 Galati, Romania
| | - Livia Patrașcu
- Cross-Border Faculty, Dunarea de Jos University of Galati, 111 Domneasca Str., 800201 Galati, Romania
| | - Daniela Borda
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, 111 Domneasca Str., 800201 Galati, Romania
| |
Collapse
|
6
|
Cai W, Ye P, Yang B, Shi Z, Xiong Q, Gao F, Liu Y, Zhao J, Ying G. Biodegradation of typical azole fungicides in activated sludge under aerobic conditions. J Environ Sci (China) 2021; 103:288-297. [PMID: 33743910 DOI: 10.1016/j.jes.2020.11.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 06/12/2023]
Abstract
Widespread use of azole fungicides and low removal efficiency in wastewater treatment plants (WWTPs) have led to the elevated concentration of azole fungicides in receiving environment. However, there was limited research about the removal mechanism of azole fungicides in the biological treatment of WWTPs. Imidazole fungicide climbazole and triazole fungicide fluconazole were selected to investigate the biodegradation mechanism of azole fungicides in activated sludge under aerobic conditions. Climbazole was found to be adsorbed to solid sludge and resulted in quick biodegradation. The degradation of climbazole in the aerobic activated sludge system was fitted well by the first-order kinetic model with a half-life of 5.3 days, while fluconazole tended to stay in liquid and had only about 30% of loss within 77 days incubation. Ten biotransformation products of climbazole were identified by high resolution mass spectrometry using suspect and non-target screening method. But no biodegradation products of fluconazole were identified due to its limited removal. The possible biodegradation pathways for climbazole were proposed based on the products identification and pathway prediction system, and involves oxidative dehalogenation, side chain oxidation and azole ring loss. The findings from this study suggest that it should be a concern for the persistence of fluconazole in the environment.
Collapse
Affiliation(s)
- Wenwen Cai
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pu Ye
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China
| | - Bin Yang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China.
| | - Zhouqi Shi
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Xiong
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fangzhou Gao
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China
| | - Yousheng Liu
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China
| | - Jianliang Zhao
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China
| | - Guangguo Ying
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China.
| |
Collapse
|
7
|
Sharma A, Singh P, Sarmah BK, Nandi SP. Quorum sensing: its role in microbial social networking. Res Microbiol 2020; 171:159-164. [PMID: 32592751 DOI: 10.1016/j.resmic.2020.06.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 10/24/2022]
Abstract
Twentieth century observed a huge paradigm shift in the field of sociobiology, which moved from social intelligence of animals to microbes. Quorum Sensing Molecules (QSMs) are the small chemical molecules, which establish the mode of communication among microbes, and is called Quorum Sensing (QS). These molecules are crucial for determining the decisions of large groups of cells, which is a density-dependent process. Thus, this mechanism draws a very thin line between bacteria that are actually prokaryotes and clustered bacteria mimicking eukaryotes. This review discusses about the designs of microbial communication networks, and the role of QS in plant-microbe interaction.
Collapse
Affiliation(s)
- Angkita Sharma
- Amity Institute of Biotechnology, Amity University, Noida, 201313, Uttar Pradesh, India.
| | - Pooja Singh
- Amity Institute of Biotechnology, Amity University, Noida, 201313, Uttar Pradesh, India.
| | - Bidyut Kr Sarmah
- DBT-AAU Centre, Assam Agricultural University, Jorhat, 785013, Assam, India.
| | - Shoma Paul Nandi
- Amity Institute of Biotechnology, Amity University, Noida, 201313, Uttar Pradesh, India.
| |
Collapse
|
8
|
Design and Application of an Artificial Hybrid PromoterPluxI-lacOin Genetic Circuit to Achieve Lower Basal Expression Level. Appl Biochem Biotechnol 2020; 191:893-903. [DOI: 10.1007/s12010-019-03153-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 10/23/2019] [Indexed: 01/22/2023]
|
9
|
Quorum sensing involvement in response surface methodology for optimisation of sclerotiorin production by Penicillium sclerotiorum in shaken flasks and bioreactors. ANN MICROBIOL 2019. [DOI: 10.1007/s13213-019-01525-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Abstract
Purpose
Sclerotiorin, an azaphilone produced by some filamentous fungi including Penicillium sclerotiorum, is a pigment with variety of biological activities including lipoxygenase inhibition, reduction of cholesterol levels, and anti-cancer properties. Sclerotiorin has potential use in pharmaceutical as well as food industries. In this context, the purpose of this study was to provide a simple and robust procedure for optimised production of sclerotiorin by P. sclerotiorum using a central composite design developed through response surface methodology (RSM) and to identify the molecule(s) involved in the signalling mechanism in P. sclerotiorum.
Methods
The optimisation of sclerotiorin production was carried out using RSM in shaken flasks and the obtained results were then replicated using a 2-L stirred tank bioreactor. Penicillium sclerotiorum ethyl acetate culture extract was analysed using thin layer chromatography (TLC) and potential signalling molecules were identified using Gas chromatography-mass spectrometry (GC-MS).
Results
The experimental studies suggested an increase in the sclerotiorin production by 2.1-fold and 2.2-fold in shaken flasks and stirred tank bioreactors respectively. Further analysis of P. sclerotiorum ethyl acetate culture extract reported the presence of ricinoleic acid, an oxylipin, belonging to a family of signalling molecules tentatively involved in the enhancement of sclerotiorin production.
Conclusion
This paper has highlighted the positive effect of the optimal supplementation of P. sclerotiorum culture extracts for enhanced production of sclerotiorin. It has also examined potential molecules involved in the signalling mechanism in P. sclerotiorum culture extract for the overproduction of sclerotiorin.
Collapse
|
10
|
Bergonzi C, Schwab M, Naik T, Elias M. The Structural Determinants Accounting for the Broad Substrate Specificity of the Quorum Quenching Lactonase GcL. Chembiochem 2019; 20:1848-1855. [PMID: 30864300 DOI: 10.1002/cbic.201900024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/11/2019] [Indexed: 12/22/2022]
Abstract
Quorum quenching lactonases are enzymes capable of hydrolyzing lactones, including N-acyl homoserine lactones (AHLs). AHLs are molecules known as signals in bacterial communication dubbed quorum sensing. Bacterial signal disruption by lactonases was previously reported to inhibit behavior regulated by quorum sensing, such as the expression of virulence factors and the formation of biofilms. Herein, we report the enzymatic and structural characterization of a novel lactonase representative from the metallo-β-lactamase superfamily, dubbed GcL. GcL is a broad spectrum and highly proficient lactonase, with kcat /KM values in the range of 104 to 106 m-1 s-1 . Analysis of free GcL structures and in complex with AHL substrates of different acyl chain length, namely, C4-AHL and 3-oxo-C12-AHL, allowed their respective binding modes to be elucidated. Structures reveal three subsites in the binding crevice: 1) the small subsite where chemistry is performed on the lactone ring; 2) a hydrophobic ring that accommodates the amide group of AHLs and small acyl chains; and 3) the outer, hydrophilic subsite that extends to the protein surface. Unexpectedly, the absence of structural accommodation for long substrate acyl chains seems to relate to the broad substrate specificity of the enzyme.
Collapse
Affiliation(s)
- Celine Bergonzi
- Biochemistry, Molecular Biology and Biophysics Department and, BioTechnology Institute, University of Minnesota, Saint Paul, MN, 55108, USA
| | - Michael Schwab
- Biochemistry, Molecular Biology and Biophysics Department and, BioTechnology Institute, University of Minnesota, Saint Paul, MN, 55108, USA
| | - Tanushree Naik
- Biochemistry, Molecular Biology and Biophysics Department and, BioTechnology Institute, University of Minnesota, Saint Paul, MN, 55108, USA
| | - Mikael Elias
- Biochemistry, Molecular Biology and Biophysics Department and, BioTechnology Institute, University of Minnesota, Saint Paul, MN, 55108, USA
| |
Collapse
|
11
|
Costoya A, Velázquez Becerra LE, Meléndez-Ortiz HI, Díaz-Gómez L, Mayer C, Otero A, Concheiro A, Bucio E, Alvarez-Lorenzo C. Immobilization of antimicrobial and anti-quorum sensing enzymes onto GMA-grafted poly(vinyl chloride) catheters. Int J Pharm 2019; 558:72-81. [DOI: 10.1016/j.ijpharm.2018.12.075] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 12/04/2018] [Accepted: 12/29/2018] [Indexed: 11/30/2022]
|
12
|
Streptomyces: implications and interactions in plant growth promotion. Appl Microbiol Biotechnol 2018; 103:1179-1188. [PMID: 30594952 PMCID: PMC6394478 DOI: 10.1007/s00253-018-09577-y] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 12/10/2018] [Accepted: 12/11/2018] [Indexed: 12/25/2022]
Abstract
With the impending increase of the world population by 2050, more activities have been directed toward the improvement of crop yield and a safe environment. The need for chemical-free agricultural practices is becoming eminent due to the effects of these chemicals on the environment and human health. Actinomycetes constitute a significant percentage of the soil microbial community. The Streptomyces genus, which is the most abundant and arguably the most important actinomycetes, is a good source of bioactive compounds, antibiotics, and extracellular enzymes. These genera have shown over time great potential in improving the future of agriculture. This review highlights and buttresses the agricultural importance of Streptomyces through its biocontrol and plant growth-promoting activities. These activities are highlighted and discussed in this review. Some biocontrol products from this genus are already being marketed while work is still ongoing on this productive genus. Compared to more focus on its biocontrol ability, less work has been done on it as a biofertilizer until recently. This genus is as efficient as a biofertilizer as it is as a biocontrol.
Collapse
|
13
|
Barriuso J, Hogan DA, Keshavarz T, Martínez MJ. Role of quorum sensing and chemical communication in fungal biotechnology and pathogenesis. FEMS Microbiol Rev 2018; 42:627-638. [PMID: 29788231 DOI: 10.1093/femsre/fuy022] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 05/17/2018] [Indexed: 12/18/2022] Open
Abstract
Microbial cells do not live in isolation in their environment, but rather they communicate with each other using chemical signals. This sophisticated mode of cell-to-cell signalling, known as quorum sensing, was first discovered in bacteria, and coordinates the behaviour of microbial population behaviour in a cell-density-dependent manner. More recently, these mechanisms have been described in eukaryotes, particularly in fungi, where they regulate processes such as pathogenesis, morphological differentiation, secondary metabolite production and biofilm formation. In this manuscript, we review the information available to date on these processes in yeast, dimorphic fungi and filamentous fungi. We analyse the diverse chemical 'languages' used by different groups of fungi, their possible cross-talk and interkingdom interactions with other organisms. We discuss the existence of these mechanisms in multicellular organisms, the ecophysiological role of QS in fungal colonisation and the potential applications of these mechanisms in biotechnology and pathogenesis.
Collapse
Affiliation(s)
- Jorge Barriuso
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Deborah A Hogan
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA
| | - Tajalli Keshavarz
- Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London W1W 6UW, UK
| | - María Jesús Martínez
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Ramiro de Maeztu 9, 28040 Madrid, Spain
| |
Collapse
|
14
|
Bergonzi C, Schwab M, Naik T, Daudé D, Chabrière E, Elias M. Structural and Biochemical Characterization of AaL, a Quorum Quenching Lactonase with Unusual Kinetic Properties. Sci Rep 2018; 8:11262. [PMID: 30050039 PMCID: PMC6062542 DOI: 10.1038/s41598-018-28988-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 06/29/2018] [Indexed: 11/10/2022] Open
Abstract
Quorum quenching lactonases are enzymes that are capable of disrupting bacterial signaling based on acyl homoserine lactones (AHL) via their enzymatic degradation. In particular, lactonases have therefore been demonstrated to inhibit bacterial behaviors that depend on these chemicals, such as the formation of biofilms or the expression of virulence factors. Here we characterized biochemically and structurally a novel representative from the metallo-β-lactamase superfamily, named AaL that was isolated from the thermoacidophilic bacterium Alicyclobacillus acidoterrestris. AaL is a potent quorum quenching enzyme as demonstrated by its ability to inhibit the biofilm formation of Acinetobacter baumannii. Kinetic studies demonstrate that AaL is both a proficient and a broad spectrum enzyme, being capable of hydrolyzing a wide range of lactones with high rates (kcat/KM > 105 M-1.s-1). Additionally, AaL exhibits unusually low KM values, ranging from 10 to 80 µM. Analysis of AaL structures bound to phosphate, glycerol, and C6-AHL reveals a unique hydrophobic patch (W26, F87 and I237), involved in substrate binding, possibly accounting for the enzyme's high specificity. Identifying the specificity determinants will aid the development of highly specific quorum quenching enzymes as potential therapeutics.
Collapse
Affiliation(s)
- Celine Bergonzi
- Biochemistry, Molecular Biology & Biophysics Dpt and BioTechnology Institute, University of Minnesota, Saint Paul, Minnesota, 55108, USA
| | - Michael Schwab
- Biochemistry, Molecular Biology & Biophysics Dpt and BioTechnology Institute, University of Minnesota, Saint Paul, Minnesota, 55108, USA
| | - Tanushree Naik
- Biochemistry, Molecular Biology & Biophysics Dpt and BioTechnology Institute, University of Minnesota, Saint Paul, Minnesota, 55108, USA
| | - David Daudé
- Gene&GreenTK, 19-21 Boulevard Jean Moulin, 13005, Marseille, France
| | - Eric Chabrière
- Aix Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Mikael Elias
- Biochemistry, Molecular Biology & Biophysics Dpt and BioTechnology Institute, University of Minnesota, Saint Paul, Minnesota, 55108, USA.
| |
Collapse
|
15
|
Gold-catalyzed stereoselective cycloisomerization of allenoic acids for two types of common natural γ-butyrolactones. Nat Commun 2018; 9:1654. [PMID: 29695784 PMCID: PMC5916948 DOI: 10.1038/s41467-018-03894-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Accepted: 03/20/2018] [Indexed: 11/08/2022] Open
Abstract
γ-(E)-Vinylic and γ-alkylic γ-butyrolactones are two different types of lactones existing extensively in animals and plants and many of them show interesting biological activities. Nature makes alkylic γ-butyrolactones by many different enzymatic lactonization processes. Scientists have been mimicking the natural strategy by developing new catalysts. However, direct and efficient access to γ-(E)-vinylic γ-butyrolactones is still extremely limited. Here, we wish to present our modular allene approach, which provides an efficient asymmetric approach to (E)-vinylic γ-butyrolactones from allenoic acids by identifying a new gold complex as the catalyst. Based on this cycloisomerization strategy, the first syntheses of racemic xestospongiene and xestospongienes E, F, G, and H have been realized and the absolute configurations of the chiral centers in xestospongienes E and F have been revised. In addition, by applying a C–O bond cleavage-free hydrogenation, the syntheses of naturally occurring γ-alkylic γ-lactones, (R)-4-tetradecalactone, (S)-4-tetradecalactone, (R)-γ-palmitolactone, and (R)-4-decalactone, have also been achieved. Gamma-butyrolactones are widespread in Nature, however direct catalytic methods to access them are limited. Here, the authors report a gold-catalyzed cycloisomerization of allenoic acids to acces γ-butyrolactones and apply it to the asymmetric synthesis of xestospongienes E, F, G, and H and other naturally occurring lactones.
Collapse
|
16
|
Meyer N, Bigalke A, Kaulfuß A, Pohnert G. Strategies and ecological roles of algicidal bacteria. FEMS Microbiol Rev 2018; 41:880-899. [PMID: 28961821 DOI: 10.1093/femsre/fux029] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 05/31/2017] [Indexed: 12/21/2022] Open
Abstract
In both freshwater and marine ecosystems, phytoplankton are the most dominant primary producers, contributing substantially to aquatic food webs. Algicidal bacteria that can associate to microalgae from the phytoplankton have the capability to control the proliferation and even to lyse them. These bacteria thus play an important role in shaping species composition in pelagic environments. In this review, we discuss and categorise strategies used by algicidal bacteria for the attack on microalgae. We highlight the complex regulation of algicidal activity and defence responses that govern alga-bacteria interactions. We also discuss how algicidal bacteria impact algal physiology and metabolism and survey the existing algicidal metabolites and enzymes. The review illustrates that the ecological role of algicidal bacteria is not yet fully understood and critically discusses the challenges in obtaining ecologically relevant data.
Collapse
Affiliation(s)
- Nils Meyer
- Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universität Jena, Lessingstrasse 8, D-07743 Jena, Germany
| | - Arite Bigalke
- Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universität Jena, Lessingstrasse 8, D-07743 Jena, Germany
| | - Anett Kaulfuß
- Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universität Jena, Lessingstrasse 8, D-07743 Jena, Germany
| | - Georg Pohnert
- Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universität Jena, Lessingstrasse 8, D-07743 Jena, Germany.,Max Planck Institute for Chemical Ecology, Hans Knöll Str. 8, D-07745 Jena, Germany
| |
Collapse
|
17
|
Ikushima S, Boeke JD. New Orthogonal Transcriptional Switches Derived from Tet Repressor Homologues for Saccharomyces cerevisiae Regulated by 2,4-Diacetylphloroglucinol and Other Ligands. ACS Synth Biol 2017; 6:497-506. [PMID: 28005347 DOI: 10.1021/acssynbio.6b00205] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Here we describe the development of tightly regulated expression switches in yeast, by engineering distant homologues of Escherichia coli TetR, including the transcriptional regulator PhlF from Pseudomonas and others. Previous studies demonstrated that the PhlF protein bound its operator sequence (phlO) in the absence of 2,4-diacetylphloroglucinol (DAPG) but dissociated from phlO in the presence of DAPG. Thus, we developed a DAPG-Off system in which expression of a gene preceded by the phlO-embedded promoter was activated by a fusion of PhlF to a multimerized viral activator protein (VP16) domain in a DAPG-free environment but repressed when DAPG was added to growth medium. In addition, we constructed a DAPG-On system with the opposite behavior of the DAPG-Off system; i.e., DAPG triggers the expression of a reporter gene. Exposure of DAPG to yeast cells did not cause any serious deleterious effect on yeast physiology in terms of growth. Efforts to engineer additional Tet repressor homologues were partially successful and a known mammalian switch, the p-cumate switch based on CymR from Pseudomonas, was found to function in yeast. Orthogonality between the TetR (doxycycline), CamR (d-camphor), PhlF (DAPG), and CymR (p-cumate)-based Off switches was demonstrated by evaluating all 4 ligands against suitably engineered yeast strains. This study expands the toolbox of "On" and "Off" switches for yeast biotechnology.
Collapse
Affiliation(s)
- Shigehito Ikushima
- High
Throughput Biology Center and Department of Molecular Biology and
Genetics, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Central
Laboratories for Key Technologies, KIRIN Company Limited, Yokohama, Kanagawa 236-0004, Japan
| | - Jef D. Boeke
- High
Throughput Biology Center and Department of Molecular Biology and
Genetics, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Institute for Systems Genetics and Department of Biochemistry & Molecular Pharmacology, NYU Langone Medical Center, New York, New York 10016, United States
| |
Collapse
|
18
|
Wang T, Guan W, Huang Q, Yang Y, Yan W, Sun B, Zhao T. Quorum-sensing contributes to virulence, twitching motility, seed attachment and biofilm formation in the wild type strain Aac-5 of Acidovorax citrulli. Microb Pathog 2016; 100:133-140. [PMID: 27594669 DOI: 10.1016/j.micpath.2016.08.039] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 06/16/2016] [Accepted: 08/31/2016] [Indexed: 10/21/2022]
Abstract
Acidovorax citrulli is a seed-borne pathogen causing bacterial fruit blotch of cucurbits including melon and watermelon. We investigated the roles of quorum sensing in the wild-type group II strain Aac-5 of A. citrulli by generating aacR and aacI knockout mutants and their complementation strains. We found that twitching motility and virulence were reduced, but biofilm formation and seed attachment were increased significantly in the two mutants as compared to the wild type strain. Deletion of aacR and aacI, however, had no effect on swimming motility and polar flagella formation of Aac-5. Furthermore, deletion of aacR resulted in reduced gene expression of hrpE, hrcN and pilT, while deletion of aacI affected only the expression of hrpE and pilT, not hrcN.
Collapse
Affiliation(s)
- Tielin Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, State Key Laboratory Breeding Base of Dao-di Herbs, Beijng, 100700, China.
| | - Wei Guan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Qi Huang
- Floral and Nursery Plants Research Unit, Agricultural Research Service, U. S. Dept. of Agriculture, Beltsville, Maryland, USA.
| | - Yuwen Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Wanrong Yan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Baixin Sun
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Tingchang Zhao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| |
Collapse
|
19
|
Biochemical detection of N-Acyl homoserine lactone from biofilm-forming uropathogenic Escherichia coli isolated from urinary tract infection samples. Rep Biochem Mol Biol 2016; 3:56-61. [PMID: 26989738 DOI: pmid/26989738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND N-Acyl homoserine lactone (AHL) is found to be the main component of quorum sensing (QS) in Gram-negative bacteria and plays an important role in biofilm formation. Little information is available regarding the role of AHL in biofilm formation in Escherichia coli (E. coli). The purpose of this investigation was to biochemically detect and characterize AHL activity in biofilm-forming uropathogenic E. coli (UPEC) isolated from urine samples of the patients with urinary tract infections (UTIs) in Kerman, Iran. METHODS Thirty-five UPEC isolates were obtained from urine samples of the patients with UTIs referred to the Afzalipoor hospital. The isolates were identified by biochemical tests. Biofilm analyses of all the isolates were performed using the microtiter plate method at OD 490nm. N-Acyl homoserine lactone was separated from cell mass supernatants by liquid-liquid extraction (LLE) and analyzed by a colorimetric method. N-Acyl homoserine lactone functional groups were identified by Fourier Transform-Infrared Spectroscopy (FT-IR). RESULTS The biofilm formation assay identified 10 (28.57%) isolates with strong, 16 (45.71%) with moderate, and 9 (25.71%) with weak biofilm activities. The UPEC isolates with strong and weak biofilm activities were subjected to AHL analyses. It was found that isolates with the highest AHL activities also exhibited strong adherence to microplate wells (P≤0.05). Two E. coli isolates with the highest AHL activities were selected for FT-IR spectroscopy. Peaks at 1764.33, 1377.99, and 1242.90 cm(-1) correspond to the C=O bond of the lactone ring, and the N=H and C-O bonds of the acyl chain, respectively. CONCLUSION We found that many UPEC isolates exhibited strong biofilm formation. The control of this property by AHL may contribute to the pathogenesis of the organism in UTI's.
Collapse
|
20
|
Rane RA, Karpoormath R, Naphade SS, Bangalore P, Shaikh M, Hampannavar G. Novel synthetic organic compounds inspired from antifeedant marine alkaloids as potent bacterial biofilm inhibitors. Bioorg Chem 2015; 61:66-73. [DOI: 10.1016/j.bioorg.2015.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 06/04/2015] [Accepted: 06/05/2015] [Indexed: 10/23/2022]
|
21
|
Kusari P, Kusari S, Spiteller M, Kayser O. Implications of endophyte-plant crosstalk in light of quorum responses for plant biotechnology. Appl Microbiol Biotechnol 2015; 99:5383-90. [DOI: 10.1007/s00253-015-6660-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 04/28/2015] [Accepted: 04/30/2015] [Indexed: 11/30/2022]
|
22
|
Biocontrol potential of endophytes harbored in Radula marginata (liverwort) from the New Zealand ecosystem. Antonie van Leeuwenhoek 2014; 106:771-88. [DOI: 10.1007/s10482-014-0247-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 07/26/2014] [Indexed: 02/07/2023]
|
23
|
Quorum quenching is an antivirulence strategy employed by endophytic bacteria. Appl Microbiol Biotechnol 2014; 98:7173-83. [DOI: 10.1007/s00253-014-5807-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 04/22/2014] [Accepted: 04/26/2014] [Indexed: 12/31/2022]
|