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Vosoughian N, Asadbeygi M, Mohammadi A, Soudi MR. Green synthesis of zinc oxide nanoparticles using novel bacterium strain (Bacillus subtilis NH1-8) and their in vitro antibacterial and antibiofilm activities against Salmonellatyphimurium. Microb Pathog 2023; 185:106457. [PMID: 37993074 DOI: 10.1016/j.micpath.2023.106457] [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: 07/20/2023] [Revised: 11/13/2023] [Accepted: 11/15/2023] [Indexed: 11/24/2023]
Abstract
Zinc oxide nanoparticles (ZnO NPs) are used in a range of applications, including food packaging, preservation, and storage. In the current investigation, extracellular green synthesis of ZnO NPs through an simple, eco-friendly, and rapid approach using a novel bacterial strain (Bacillus subtilis NH1-8) was studied. To assess the morphological, optical, and structural properties of ZnO NPs, transmission electron microscopy (TEM), energy-dispersive X-ray (EDX), scanning electron microscopy (SEM), fourier transform infrared (FTIR) spectroscopy, ultraviolet-visible (UV-vis) spectroscopy, and X-ray diffraction (XRD) techniques were carried out. In addition, disk diffusion, minimum bactericidal concentration (MBC), and minimum inhibitory concentration (MIC) methods were performed to determine the antibacterial activity of ZnO NPs. The average size of biosynthesized ZnO NPs was 39 nm, exhibiting semi-spherical, which was confirmed by TEM analyses. The UV-vis spectroscopy exhibited the absorption peak at 200-800nm. The ZnO NPs have shown effective antimicrobial and antibiofilm activities against S. typhimurium. Thus, biosynthesized ZnO NPs could be exploited as a breakthrough technology in the surface coating of food containers and cans to minimize contamination by S. typhimurium.
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Affiliation(s)
- Nikta Vosoughian
- Department of Microbiology, Faculty of Biological Sciences, Alzahra University, Vanak St., Tehran, Iran
| | - Mastoore Asadbeygi
- Department of Microbiology, Faculty of Biological Sciences, Alzahra University, Vanak St., Tehran, Iran
| | - Ali Mohammadi
- Department of Microbiology, Faculty of Biological Sciences, Alzahra University, Vanak St., Tehran, Iran; Research Center for Applied Microbiology and Microbial Biotechnology (CAMB), Alzahra University, Tehran, Iran.
| | - Mohammad Reza Soudi
- Department of Microbiology, Faculty of Biological Sciences, Alzahra University, Vanak St., Tehran, Iran; Research Center for Applied Microbiology and Microbial Biotechnology (CAMB), Alzahra University, Tehran, Iran
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Vetrivel A, Vetrivel P, Dhandapani K, Natchimuthu S, Ramasamy M, Madheswaran S, Murugesan R. Inhibition of biofilm formation, quorum sensing and virulence factor production in Pseudomonas aeruginosa PAO1 by selected LasR inhibitors. Int Microbiol 2023; 26:851-868. [PMID: 36806045 DOI: 10.1007/s10123-023-00338-0] [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: 09/03/2022] [Revised: 02/01/2023] [Accepted: 02/07/2023] [Indexed: 02/23/2023]
Abstract
The quorum sensing network of Pseudomonas aeruginosa mediates the regulation of genes controlling biofilm formation and virulence factors. The rise of drug resistance to Pseudomonas aeruginosa infections has made quorum sensing-regulated biofilm formation in clinical settings a major issue. In the present study, LasR inhibitors identified in our previous study were evaluated for their antibiofilm and antiquorum sensing activities against P. aeruginosa PAO1. The compounds selected were (3-[2-(3,4-dimethoxyphenyl)-2-(1H-indol-3-yl)ethyl]-1-(2-fluorophenyl)urea) (C1), (3-(4-fluorophenyl)-2-[(3-methylquinoxalin-2-yl)methylsulfanyl]quinazolin-4-one) (C2) and (2-({4-[4-(2-methoxyphenyl)piperazin-1-yl]pyrimidin-2-yl}sulfanyl)-N-(2,4,6-trimethylphenyl)acetamide) (C3). The minimum inhibitory concentrations of C1 and C2 were 1000 μM, whereas that of C3 was 500 μM. At sub-MICs, the compounds showed potent antibiofilm activity without affecting the growth of P. aeruginosa PAO1. Electron microscopy confirmed the disruption of biofilm by the selected compounds. The antiquorum sensing activity of the compounds was revealed by the inhibition of violacein in Chromobacterium violaceum and the inhibition of swimming and swarming motilities in P. aeruginosa PAO1. Furthermore, the compounds also attenuated the production of quorum sensing-mediated virulence factors. The qRT-PCR revealed the downregulation of quorum sensing regulatory genes, namely lasI, lasR, rhlI, rhlR, lasB, pqsA and pqsR. The selected compounds also exhibited lower cytotoxicity against peripheral blood lymphocytes. Thus, this study could pave a way to explore these compounds for the development of therapeutic agent against Pseudomonas aeruginosa biofilm-related infections.
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Affiliation(s)
- Aishwarya Vetrivel
- Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641043, Tamil Nadu, India
| | - Preethi Vetrivel
- Department of Pharmacy, National University of Singapore, Singapore 119077, Singapore
| | - Kavitha Dhandapani
- Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641043, Tamil Nadu, India
| | - Santhi Natchimuthu
- Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641043, Tamil Nadu, India
| | - Monica Ramasamy
- Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641043, Tamil Nadu, India
| | - Soundariya Madheswaran
- Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641043, Tamil Nadu, India
| | - Rajeswari Murugesan
- Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641043, Tamil Nadu, India.
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Amer MA, Wasfi R, Hamed SM. Biosurfactant from Nile Papyrus endophyte with potential antibiofilm activity against global clones of Acinetobacter baumannii. Front Cell Infect Microbiol 2023; 13:1210195. [PMID: 37520441 PMCID: PMC10373939 DOI: 10.3389/fcimb.2023.1210195] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/20/2023] [Indexed: 08/01/2023] Open
Abstract
Acinetobacter baumannii is a leading cause of biofilm-associated infections, particularly catheter-related bloodstream infections (CRBSIs) that are mostly recalcitrant to antimicrobial therapy. One approach to reducing the burden of CRBSIs is inhibiting biofilm formation on catheters. Owing to their prodigious microbial diversity, bacterial endophytes might be a valuable source of biosurfactants, which are known for their great capacity to disperse microbial biofilms. With this in mind, our study aimed to screen bacterial endophytes from plants growing on the banks of the River Nile for the production of powerful biosurfactants capable of reducing the ability of A. baumannii to form biofilms on central venous catheters (CVCs). This was tested on multidrug- and extensive drug-resistant (M/XDR) clinical isolates of A. baumannii that belong to high-risk global clones and on a standard strain of A. baumannii ATCC 19606. The drop collapse and oil dispersion assays were employed in screening the cell-free supernatants (CFS) of all endophytes for biosurfactant activity. Of the 44 bacterial endophytes recovered from 10 plants, the CFS of Bacillus amyloliquefaciens Cp24, isolated from Cyperus papyrus, showed the highest biosurfactant activity. The crude biosurfactant extract of Cp24 showed potent antibacterial activity with minimum inhibitory concentrations (MICs) ranging from 0.78 to 1.56 mg/ml. It also showed significant antibiofilm activity (p-value<0.01). Sub-MICs of the extract could reduce biofilm formation by up to 89.59%, while up to 87.3% of the preformed biofilms were eradicated by the MIC. A significant reduction in biofilm formation on CVCs impregnated with sub-MIC of the extract was demonstrated by CV assay and further confirmed by scanning electron microscopy. This was associated with three log10 reductions in adhered bacteria in the viable count assay. GC-MS analysis of the crude biosurfactant extract revealed the presence of several compounds, such as saturated, unsaturated, and epoxy fatty acids, cyclopeptides, and 3-Benzyl-hexahydro-pyrrolo [1, 2-a] pyrazine-1,4-dione, potentially implicated in the potent biosurfactant and antibiofilm activities. In the present study, we report the isolation of a B. amyloliquefaciens endophyte from the plant C. papyrus that produces a biosurfactant with potent antibiofilm activity against MDR/XDR global clones of A. baumannii. The impregnation of CVCs with the biosurfactant was demonstrated to reduce biofilms and, hence, proposed as a potential strategy for reducing CRBSIs.
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Shilpha J, Meyappan V, Sakthivel N. Bioinspired synthesis of gold nanoparticles from Hemidesmus indicus L. root extract and their antibiofilm efficacy against Pseudomonas aeruginosa. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Louis M, Tahrioui A, Verdon J, David A, Rodrigues S, Barreau M, Manac’h M, Thiroux A, Luton B, Dupont C, Calvé ML, Bazire A, Crépin A, Clabaut M, Portier E, Taupin L, Defontaine F, Clamens T, Bouffartigues E, Cornelis P, Feuilloley M, Caillon J, Dufour A, Berjeaud JM, Lesouhaitier O, Chevalier S. Effect of Phthalates and Their Substitutes on the Physiology of Pseudomonas aeruginosa. Microorganisms 2022; 10:microorganisms10091788. [PMID: 36144390 PMCID: PMC9502294 DOI: 10.3390/microorganisms10091788] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/26/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Phthalates are used in a variety of applications—for example, as plasticizers in polyvinylchloride products to improve their flexibility—and can be easily released into the environment. In addition to being major persistent organic environmental pollutants, some phthalates are responsible for the carcinogenicity, teratogenicity, and endocrine disruption that are notably affecting steroidogenesis in mammals. Numerous studies have thus focused on deciphering their effects on mammals and eukaryotic cells. While multicellular organisms such as humans are known to display various microbiota, including all of the microorganisms that may be commensal, symbiotic, or pathogenic, few studies have aimed at investigating the relationships between phthalates and bacteria, notably regarding their effects on opportunistic pathogens and the severity of the associated pathologies. Herein, the effects of phthalates and their substitutes were investigated on the human pathogen, Pseudomonas aeruginosa, in terms of physiology, virulence, susceptibility to antibiotics, and ability to form biofilms. We show in particular that most of these compounds increased biofilm formation, while some of them enhanced the bacterial membrane fluidity and altered the bacterial morphology.
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Affiliation(s)
- Mélissande Louis
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
| | - Ali Tahrioui
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
| | - Julien Verdon
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- CNRS UMR7267 Ecologie et Biologie des Interactions (EBI), Université de Poitiers, F-86000 Poitiers, France
| | - Audrey David
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
| | - Sophie Rodrigues
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- Université de Bretagne-Sud, EA 3884, LBCM, IUEM, F-56100 Lorient, France
| | - Magalie Barreau
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
| | - Maëliss Manac’h
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- Université de Bretagne-Sud, EA 3884, LBCM, IUEM, F-56100 Lorient, France
| | - Audrey Thiroux
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- CNRS UMR7267 Ecologie et Biologie des Interactions (EBI), Université de Poitiers, F-86000 Poitiers, France
| | - Baptiste Luton
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- Université de Bretagne-Sud, EA 3884, LBCM, IUEM, F-56100 Lorient, France
| | - Charly Dupont
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
| | - Marie Le Calvé
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- Université de Bretagne-Sud, EA 3884, LBCM, IUEM, F-56100 Lorient, France
| | - Alexis Bazire
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- Université de Bretagne-Sud, EA 3884, LBCM, IUEM, F-56100 Lorient, France
| | - Alexandre Crépin
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- CNRS UMR7267 Ecologie et Biologie des Interactions (EBI), Université de Poitiers, F-86000 Poitiers, France
| | - Maximilien Clabaut
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- CNRS UMR7267 Ecologie et Biologie des Interactions (EBI), Université de Poitiers, F-86000 Poitiers, France
| | - Emilie Portier
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- Université de Bretagne-Sud, EA 3884, LBCM, IUEM, F-56100 Lorient, France
| | - Laure Taupin
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- Université de Bretagne-Sud, EA 3884, LBCM, IUEM, F-56100 Lorient, France
| | - Florian Defontaine
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
| | - Thomas Clamens
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
| | - Emeline Bouffartigues
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
| | - Pierre Cornelis
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
| | - Marc Feuilloley
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
| | - Jocelyne Caillon
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- EA3826 Thérapeutiques Cliniques et Expérimentales des Infections, Faculté de Médecine, Université de Nantes, F-44000 Nantes, France
| | - Alain Dufour
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- Université de Bretagne-Sud, EA 3884, LBCM, IUEM, F-56100 Lorient, France
| | - Jean-Marc Berjeaud
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- CNRS UMR7267 Ecologie et Biologie des Interactions (EBI), Université de Poitiers, F-86000 Poitiers, France
| | - Olivier Lesouhaitier
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
| | - Sylvie Chevalier
- Unité de Recherche Communication Bactérienne et Stratégies Anti-Infectieuses, CBSA UR4312, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- SéSAD, Fédération de Recherche “Sécurité Sanitaire, Bien Être, Aliment Durable”, Université de Rouen-Normandie, Normandie Université, F-27000 Évreux, France
- IMPERIAL Project Consortium, ANSES, F-94706 Maisons-Alfort, France
- Correspondence: ; Tel.: +33-2-32-29-15-60
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Kapadia C, Kachhdia R, Singh S, Gandhi K, Poczai P, Alfarraj S, Ansari MJ, Gafur A, Sayyed RZ. Pseudomonas aeruginosa inhibits quorum-sensing mechanisms of soft rot pathogen Lelliottia amnigena RCE to regulate its virulence factors and biofilm formation. Front Microbiol 2022; 13:977669. [PMID: 36090086 PMCID: PMC9450810 DOI: 10.3389/fmicb.2022.977669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 07/25/2022] [Indexed: 01/21/2023] Open
Abstract
The quorum-sensing (QS) cascade is responsible for the colonization and phenotypic behavior of the pathogenic organism and the regulation of diverse signal molecules. The disruption of the quorum-sensing system is an effective strategy to overcome the possibility of antibiotic resistance development in the pathogen. The quorum quenching does not kill the microbes. Instead, it hinders the expression of pathogenic traits. In the present experiment, Pseudomonas aeruginosa RKC1 was used to extract the metabolites responsible for quorum-sensing inhibition in soft rot pathogen Lelliottia amnigena RCE. During the initial screening, P. aeruginosa RKC1 was found to be most promising and inhibits violacein of Chromobacterium violaceum MTCC2656 pyocyanin, swarming-swimming motility of P. aeruginosa MTCC2297. The characterization of metabolites produced by the microbes which are responsible for quorum-sensing inhibition through GC-MS is very scarce in scientific literature. The ethyl acetate extract of P. aeruginosa RKC1 inhibits biofilm formation of L. amnigena RCE while inhibiting growth at higher concentrations. The GC-MS analysis suggested that Cyclic dipeptides (CDPs) such as Cyclo (L-prolyl-L-valine), Cyclo (Pro-Leu), and Cyclo(D-phenylalanyl-L-prolyl) were predominantly found in the ethyl acetate extract of the P. aeruginosa RKC1 (93.72%). This diketopiperazine (DKPs) exhibited quorum-sensing inhibition against the pathogen in liquid media during the active growth phase and regulated diverse metabolites of the pathogen. Moreover, the metabolites data from the clear zone around wells showed a higher concentration of DKSs (9.66%) compared to other metabolites. So far, very few reports indicate the role of DKPs or CDPs in inhibiting the quorum-sensing system in plant pathogenic bacteria. This is one such report that exploits metabolites of P. aeruginosa RKC1. The present investigation provided evidence to use quorum-sensing inhibitor metabolites, to suppress microbes' pathogenesis and thus develop an innovative strategy to overcome antibiotic resistance.
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Affiliation(s)
- Chintan Kapadia
- Department of Plant Molecular Biology and Biotechnology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari, India
- *Correspondence: Chintan Kapadia
| | - Rinkal Kachhdia
- Department of Plant Molecular Biology and Biotechnology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari, India
| | - Susheel Singh
- Food Quality Testing Laboratory, N. M. College of Agriculture, Navsari Agricultural University, Navsari, India
| | - Kelvin Gandhi
- Food Quality Testing Laboratory, N. M. College of Agriculture, Navsari Agricultural University, Navsari, India
| | - Peter Poczai
- Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
- Peter Poczai
| | - Saleh Alfarraj
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College, Moradabad (Mahatma Jyotiba Phule Rohilkhand University Bareilly), Moradabad, India
| | - Abdul Gafur
- Sinarmas Forestry Corporate Research and Development, Perawang, Indonesia
| | - R. Z. Sayyed
- Department of Microbiology, PSGVP Mandals, S I Patil Arts, G B Patel Science and STKV Sangh Commerce College, Shahada, India
- R. Z. Sayyed
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7
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Kachhadia R, Kapadia C, Singh S, Gandhi K, Jajda H, Alfarraj S, Ansari MJ, Danish S, Datta R. Quorum Sensing Inhibitory and Quenching Activity of Bacillus cereus RC1 Extracts on Soft Rot-Causing Bacteria Lelliottia amnigena. ACS OMEGA 2022; 7:25291-25308. [PMID: 35910130 PMCID: PMC9330221 DOI: 10.1021/acsomega.2c02202] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 06/28/2022] [Indexed: 05/15/2023]
Abstract
The quorum sensing (QS) system of bacteria helps them to communicate with each other in a density-dependent manner and regulates pathogenicity. The concentrations of autoinducers, peptides, and signaling factors are required for determining the expression of virulence factors in many pathogens. The QS signals of the pathogen are regulated by the signal transduction pathway. The binding of signal molecules to its cognate receptor brings changes in the structure of the receptor, makes it more accessible to the DNA, and thus regulates diverse expression patterns, including virulence factors. Degrading the autoinducer molecules or disturbing the quorum sensing network could be exploited to control the virulence of the pathogen while avoiding multidrug-resistant phenotypes. The rhizosphere is a tremendous source of beneficial microbes that has not yet been explored properly for its anti-quorum sensing potential. Lelliottia amnigena causes soft rot diseases in onion, potato, and other species. The present investigation was carried out with the aim of isolating the anti-quorum sensing metabolites and elucidating their role in controlling the virulence factors of the pathogen by performing a maceration assay. The ethyl acetate extracts of various bacteria are promising for violacein inhibition assay using Chromobacterium violaceum MTCC2656 and pyocyanin inhibition of Pseudomonas aeruginosa MTCC2297. Therefore, the extract was used to deduce its role in attenuation of soft rot in potato, carrot, and cucumber. The maximum reduction of macerated tissue in carrot, potato, and cucumber was given by Bacillus cereus RC1 at 91.22, 97.59, and 88.78%, respectively. The concentration-dependent inhibition of virulence traits was observed during the entire experiment. The quorum quenching potential of the bacterial extract was used to understand the regulatory metabolites. The data of the diffusible zone and gas chromatography-mass spectrometry (GC-MS) analysis showed that diketopiperazines, viz. Cyclo(d-phenylalanyl-l-prolyl), Cyclo Phe-Val, Cyclo(Pro-Ala), Cyclo(l-prolyl-l-valine), Cyclo (Leu-Leu), and Cyclo(-Leu-Pro), are prominent metabolites that could modulate the pathogenicity in L. amnigena RCE. The interaction of bacterial extracts regulates various metabolites of the pathogens during their growth in liquid culture compared to their control counterparts. This study might help in exploiting the metabolites from bacteria to control the pathogens, with concurrent reduction in the pathogenicity of the pathogens without developing antibiotic resistance.
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Affiliation(s)
- Rinkal Kachhadia
- Department
of Plant Molecular Biology and Biotechnology, ASPEE College of Horticulture
and Forestry, Navsari Agricultural University, Navsari, Gujarat 396450, India
| | - Chintan Kapadia
- Department
of Plant Molecular Biology and Biotechnology, ASPEE College of Horticulture
and Forestry, Navsari Agricultural University, Navsari, Gujarat 396450, India
| | - Susheel Singh
- Food
Quality Testing Laboratory, N. M. College Of Agriculture, Navsari Agricultural University, Navsari, Gujarat 396450, India
| | - Kelvin Gandhi
- Food
Quality Testing Laboratory, N. M. College Of Agriculture, Navsari Agricultural University, Navsari, Gujarat 396450, India
| | - Harsur Jajda
- Gujarat
Agricultural Biotech Institute, Navsari
Agricultural University, Navsari, Gujarat 396450, India
| | - Saleh Alfarraj
- Zoology
Department, College of Science, King Saud
University, Riyadh 11451, Saudi Arabia
| | - Mohammad Javed Ansari
- Department
of Botany, Hindu College Moradabad (Mahatma
Jyotiba Phule Rohilkhand University Bareilly), 244001, India
| | - Subhan Danish
- Hainan
Key
Laboratory for Sustainable Utilization of Tropical Bioresource, College
of Tropical Crops, Hainan University, Haikou 570228, China
| | - Rahul Datta
- Department
of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska 1, Brno 61300, Czech Republic
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8
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Amelia TSM, Suaberon FAC, Vad J, Fahmi ADM, Saludes JP, Bhubalan K. Recent Advances of Marine Sponge-Associated Microorganisms as a Source of Commercially Viable Natural Products. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:492-512. [PMID: 35567600 DOI: 10.1007/s10126-022-10130-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 04/25/2022] [Indexed: 06/15/2023]
Abstract
Many industrially significant compounds have been derived from natural products in the environment. Research efforts so far have contributed to the discovery of beneficial natural products that have improved the quality of life on Earth. As one of the sources of natural products, marine sponges have been progressively recognised as microbial hotspots with reports of the sponges harbouring diverse microbial assemblages, genetic material, and metabolites with multiple industrial applications. Therefore, this paper aims at reviewing the recent literature (primarily published between 2016 and 2022) on the types and functions of natural products synthesised by sponge-associated microorganisms, thereby helping to bridge the gap between research and industrial applications. The metabolites that have been derived from sponge-associated microorganisms, mostly bacteria, fungi, and algae, have shown application prospects especially in medicine, cosmeceutical, environmental protection, and manufacturing industries. Sponge bacteria-derived natural products with medical properties harboured anticancer, antibacterial, antifungal, and antiviral functions. Efforts in re-identifying the origin of known and future sponge-sourced natural products would further clarify the roles and significance of microbes within marine sponges.
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Affiliation(s)
- Tan Suet May Amelia
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Ferr Angelus C Suaberon
- Center for Natural Drug Discovery & Development (CND3), University of San Agustin, 5000, Iloilo City, Philippines
| | - Johanne Vad
- Changing Oceans Research Group, School of GeoSciences, University of Edinburgh, Edinburgh, UK
| | - Afiq Durrani Mohd Fahmi
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
- Eco-Innovation Research Interest Group, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Jonel P Saludes
- Center for Natural Drug Discovery & Development (CND3), University of San Agustin, 5000, Iloilo City, Philippines
- Department of Chemistry, University of San Agustin, 5000, Iloilo City, Philippines
- Department of Science and Technology, Balik Scientist Program, Philippine Council for Health Research & Development (PCHRD), Bicutan, 1631, Taguig, Philippines
| | - Kesaven Bhubalan
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia.
- Eco-Innovation Research Interest Group, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia.
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia.
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9
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Giannakara M, Koumandou VL. Evolution of two-component quorum sensing systems. Access Microbiol 2022; 4:000303. [PMID: 35252749 PMCID: PMC8895600 DOI: 10.1099/acmi.0.000303] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 11/15/2021] [Indexed: 12/16/2022] Open
Abstract
Quorum sensing (QS) is a cell-to-cell communication system that enables bacteria to coordinate their gene expression depending on their population density, via the detection of small molecules called autoinducers. In this way bacteria can act collectively to initiate processes like bioluminescence, virulence and biofilm formation. Autoinducers are detected by receptors, some of which are part of two-component signal transduction systems (TCS), which comprise of a (usually membrane-bound) sensor histidine kinase (HK) and a cognate response regulator (RR). Different QS systems are used by different bacterial taxa, and their relative evolutionary relationships have not been extensively studied. To address this, we used the Kyoto Encyclopedia of Genes and Genomes (KEGG) database to identify all the QS HKs and RRs that are part of TCSs and examined their conservation across microbial taxa. We compared the combinations of the highly conserved domains in the different families of receptors and response regulators using the Simple Modular Architecture Research Tool (SMART) and KEGG databases, and we also carried out phylogenetic analyses for each family, and all families together. The distribution of the different QS systems across taxa, indicates flexibility in HK–RR pairing and highlights the need for further study of the most abundant systems. For both the QS receptors and the response regulators, our results indicate close evolutionary relationships between certain families, highlighting a common evolutionary history which can inform future applications, such as the design of novel inhibitors for pathogenic QS systems.
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Affiliation(s)
- Marina Giannakara
- Genetics Laboratory, Department of Biotechnology, Agricultural University of Athens, Athens, Greece
| | - Vassiliki Lila Koumandou
- Genetics Laboratory, Department of Biotechnology, Agricultural University of Athens, Athens, Greece
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10
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Shen Y, Cui F, Wang D, Li T, Li J. Quorum Quenching Enzyme (PF-1240) Capable to Degrade AHLs as a Candidate for Inhibiting Quorum Sensing in Food Spoilage Bacterium Hafnia alvei. Foods 2021; 10:foods10112700. [PMID: 34828982 PMCID: PMC8622684 DOI: 10.3390/foods10112700] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/29/2021] [Accepted: 10/11/2021] [Indexed: 11/25/2022] Open
Abstract
Quorum sensing (QS) is widely present in microorganisms in marine aquatic products. Owing to the use of antibiotics, many spoilage bacteria in aquatic products are drug resistant. In order to slow down this evolutionary trend, the inhibition of spoilage phenotype of spoilage bacteria by interfering with QS has become a research hot spot in recent years. In this study, we found a new QS quenching enzyme, PF-1240; it was cloned and expressed in Pseudomonas fluorescens 08. Sequence alignment showed that its similarity with N-homoserine lactone (AHL) acylase QuiP protein of Pseudomonas fluorescens (Pf 0-1) was 78.4%. SDS-PAGE confirmed that the protein is a dimer composed of two subunits, which is similar to the structure of AHL acylases. The concentration of heterologous expression in Escherichia coli (DE3) was 26.64 μg/mL. Unlike most AHL acylases, PF-1240 can quench AHLs with different carbon chain lengths and inhibit the quorum sensing of the aquatic spoilage bacterium Hafnia alvei. It can significantly reduce the formation rate of biofilm of H. alvei to 44.4% and the yield of siderophores to 54%, inhibit the production of protease and lipase, and interfere with the motility of H. alvei. Through these corruption phenotypes, the specific application effect of PF-1240 can be further determined to provide a theoretical basis for its application in the preservation of practical aquatic products.
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Affiliation(s)
- Yue Shen
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, College of Food Science and Technology, Bohai University, Jinzhou 121013, China; (Y.S.); (F.C.)
| | - Fangchao Cui
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, College of Food Science and Technology, Bohai University, Jinzhou 121013, China; (Y.S.); (F.C.)
| | - Dangfeng Wang
- School of Food Science and Technology, Jiangnan University, Wuxi 214000, China;
| | - Tingting Li
- Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Dalian 116000, China
- Correspondence: (T.L.); (J.L.); Tel./Fax: +86-416-3400008 (J.L.)
| | - Jianrong Li
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, College of Food Science and Technology, Bohai University, Jinzhou 121013, China; (Y.S.); (F.C.)
- Correspondence: (T.L.); (J.L.); Tel./Fax: +86-416-3400008 (J.L.)
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11
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Papa R, Vrenna G, D’Angelo C, Casillo A, Relucenti M, Donfrancesco O, Corsaro MM, Fiscarelli EV, Tuccio Guarna Assanti V, Tutino ML, Parrilli E, Artini M, Selan L. Anti-Virulence Activity of the Cell-Free Supernatant of the Antarctic Bacterium Psychrobacter sp. TAE2020 against Pseudomonas aeruginosa Clinical Isolates from Cystic Fibrosis Patients. Antibiotics (Basel) 2021; 10:944. [PMID: 34438994 PMCID: PMC8388993 DOI: 10.3390/antibiotics10080944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/29/2021] [Accepted: 08/03/2021] [Indexed: 12/20/2022] Open
Abstract
Pseudomonas aeruginosa is an opportunistic pathogen often involved in airway infections of cystic fibrosis (CF) patients. Its pathogenicity is related to several virulence factors, such as biofilm formation, motility and production of toxins and proteases. The expression of these virulence factors is controlled by quorum sensing (QS). Thus, QS inhibition is considered a novel strategy for the development of antipathogenic compounds acting on specific bacterial virulence programs without affecting bacterial vitality. In this context, cold-adapted marine bacteria living in polar regions represent an untapped reservoir of biodiversity endowed with an interesting chemical repertoire. In this paper, we investigated the biological activity of a supernatant derived from a novel Antarctic bacterium (SN_TAE2020) against specific virulence factors produced by P. aeruginosa strains isolated from FC patients. Our results clearly show a reduction in pyocyanin and protease production in the presence of SN_TAE2020. Finally, SN_TAE2020 was also able to strongly affect swarming and swimming motility for almost all tested strains. Furthermore, the effect of SN_TAE2020 was investigated on biofilm growth and texture, captured by SEM analysis. In consideration of the novel results obtained on clinical strains, polar bacteria might represent potential candidates for the discovery of new compounds limiting P. aeruginosa virulence in CF patients.
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Affiliation(s)
- Rosanna Papa
- Department of Public Health and Infectious Diseases, Sapienza University, p.le Aldo Moro 5, 00185 Rome, Italy; (G.V.); (L.S.)
| | - Gianluca Vrenna
- Department of Public Health and Infectious Diseases, Sapienza University, p.le Aldo Moro 5, 00185 Rome, Italy; (G.V.); (L.S.)
| | - Caterina D’Angelo
- Department of Chemical Sciences, Federico II University, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy; (C.D.); (A.C.); (M.M.C.); (M.L.T.); (E.P.)
| | - Angela Casillo
- Department of Chemical Sciences, Federico II University, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy; (C.D.); (A.C.); (M.M.C.); (M.L.T.); (E.P.)
| | - Michela Relucenti
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Sapienza University of Rome, Via Alfonso Borelli 50, 00161 Rome, Italy; (M.R.); (O.D.)
| | - Orlando Donfrancesco
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Sapienza University of Rome, Via Alfonso Borelli 50, 00161 Rome, Italy; (M.R.); (O.D.)
| | - Maria Michela Corsaro
- Department of Chemical Sciences, Federico II University, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy; (C.D.); (A.C.); (M.M.C.); (M.L.T.); (E.P.)
| | - Ersilia Vita Fiscarelli
- Unit Cystic Fibrosis Diagnostic Microbiology and Immunology Diagnostics, Diagnostic Medicine and Laboratory Department, Bambino Gesù Children’s IRCCS Hospital, 00165 Rome, Italy; (E.V.F.); (V.T.G.A.)
| | - Vanessa Tuccio Guarna Assanti
- Unit Cystic Fibrosis Diagnostic Microbiology and Immunology Diagnostics, Diagnostic Medicine and Laboratory Department, Bambino Gesù Children’s IRCCS Hospital, 00165 Rome, Italy; (E.V.F.); (V.T.G.A.)
| | - Maria Luisa Tutino
- Department of Chemical Sciences, Federico II University, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy; (C.D.); (A.C.); (M.M.C.); (M.L.T.); (E.P.)
| | - Ermenegilda Parrilli
- Department of Chemical Sciences, Federico II University, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy; (C.D.); (A.C.); (M.M.C.); (M.L.T.); (E.P.)
| | - Marco Artini
- Department of Public Health and Infectious Diseases, Sapienza University, p.le Aldo Moro 5, 00185 Rome, Italy; (G.V.); (L.S.)
| | - Laura Selan
- Department of Public Health and Infectious Diseases, Sapienza University, p.le Aldo Moro 5, 00185 Rome, Italy; (G.V.); (L.S.)
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12
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Huang L, Zhu X, Zhou S, Cheng Z, Shi K, Zhang C, Shao H. Phthalic Acid Esters: Natural Sources and Biological Activities. Toxins (Basel) 2021; 13:toxins13070495. [PMID: 34357967 PMCID: PMC8310026 DOI: 10.3390/toxins13070495] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/09/2021] [Accepted: 07/14/2021] [Indexed: 12/22/2022] Open
Abstract
Phthalic acid esters (PAEs) are a class of lipophilic chemicals widely used as plasticizers and additives to improve various products' mechanical extensibility and flexibility. At present, synthesized PAEs, which are considered to cause potential hazards to ecosystem functioning and public health, have been easily detected in the atmosphere, water, soil, and sediments; PAEs are also frequently discovered in plant and microorganism sources, suggesting the possibility that they might be biosynthesized in nature. In this review, we summarize that PAEs have not only been identified in the organic solvent extracts, root exudates, and essential oils of a large number of different plant species, but also isolated and purified from various algae, bacteria, and fungi. Dominant PAEs identified from natural sources generally include di-n-butyl phthalate, diethyl phthalate, dimethyl phthalate, di(2-ethylhexyl) phthalate, diisobutyl phthalate, diisooctyl phthalate, etc. Further studies reveal that PAEs can be biosynthesized by at least several algae. PAEs are reported to possess allelopathic, antimicrobial, insecticidal, and other biological activities, which might enhance the competitiveness of plants, algae, and microorganisms to better accommodate biotic and abiotic stress. These findings suggest that PAEs should not be treated solely as a "human-made pollutant" simply because they have been extensively synthesized and utilized; on the other hand, synthesized PAEs entering the ecosystem might disrupt the metabolic process of certain plant, algal, and microbial communities. Therefore, further studies are required to elucidate the relevant mechanisms and ecological consequences.
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Affiliation(s)
- Ling Huang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (L.H.); (S.Z.); (Z.C.); (K.S.)
- Research Center for Ecology and Environment of Central Asia, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Xunzhi Zhu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China;
| | - Shixing Zhou
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (L.H.); (S.Z.); (Z.C.); (K.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhenrui Cheng
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (L.H.); (S.Z.); (Z.C.); (K.S.)
| | - Kai Shi
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (L.H.); (S.Z.); (Z.C.); (K.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chi Zhang
- Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection, College of Resources and Environment, Linyi University, Linyi 276000, China
- Correspondence: (C.Z.); (H.S.)
| | - Hua Shao
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (L.H.); (S.Z.); (Z.C.); (K.S.)
- Research Center for Ecology and Environment of Central Asia, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence: (C.Z.); (H.S.)
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