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Kurniawan J, Waturangi DE, Julyantoro PGS, Papuangan N. Ice nucleation active bacteria metabolites as antibiofilm agent to control Aeromonas hydrophila and Streptococcus agalactiae infections in Aquaculture. BMC Res Notes 2024; 17:166. [PMID: 38886828 PMCID: PMC11184859 DOI: 10.1186/s13104-024-06821-9] [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: 08/07/2023] [Accepted: 06/05/2024] [Indexed: 06/20/2024] Open
Abstract
OBJECTIVES The aim of this study was to quantify and identify metabolites of Ice Nucleation Active (INA) bacteria as an anti-biofilm agent against biofilms of fish pathogens such as Aeromonas hydrophila and Streptococcus agalactiae. RESULTS Ice nucleation active bacteria, which have the ability to catalyze ice nucleation, isolated from rainwater in previous studies, were used. All INA isolates were tested in several assays, including the antimicrobial test, which uses streptomycin as the positive control and none of the isolates were found positive in the antimicrobial test. As for the quorum quenching assay, it was found that four out of ten isolates were able to disturb the communication system in Chromobacterium violaceum wild type, which was used as the indicator bacteria. On the next assay, all ten isolates were tested for Biofilm Inhibition and Destruction and showed anti-biofilm activity with the highest percentage inhibition of 33.49% by isolate A40 against A. hydrophila and 77.26% by isolate A19 against S. agalactiae. C1 performed the highest destruction against A. hydrophila and S. agalactiae, with percentages of 32.11% and 51.88%, respectively. As for the GC-MS analysis, supernatants of INA bacteria contain bioactive compounds such as sarcosine and fatty acids, which are known to have antibiofilm activity against several biofilm-forming bacteria. Through 16s rRNA sequencing, identified bacteria are from the Pantoea, Enterobacter, and Acinetobacter genera. As for the conclusion, ice nucleation active bacteria metabolites tested showed positive results against pathogenic bacteria Aeromonas hydrophila and Streptococcus agalactiae in destructing and inhibiting biofilm growth.
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Affiliation(s)
- Jessica Kurniawan
- Department of Biotechnology, Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jalan Jenderal Sudirman 51, Jakarta, 12930, Indonesia
| | - Diana Elizabeth Waturangi
- Department of Biotechnology, Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jalan Jenderal Sudirman 51, Jakarta, 12930, Indonesia.
| | - Pande Gde Sasmita Julyantoro
- Department of Aquatic Resources Management, Faculty of Marine Science and Fisheries, University of Udayana, Denpasar, Bali, 80361, Indonesia
| | - Nurmaya Papuangan
- Department of Biology Education, Faculty of Teacher Training and Education, Khairun University, Ternate, 97728, Indonesia
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Omer SN, Shanmugam V. Exploring the antibiofilm and toxicity of tin oxide nanoparticles: Insights from in vitro and in vivo investigations. Microb Pathog 2024; 190:106639. [PMID: 38616002 DOI: 10.1016/j.micpath.2024.106639] [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: 11/02/2023] [Revised: 03/29/2024] [Accepted: 04/01/2024] [Indexed: 04/16/2024]
Abstract
BACKGROUND INFORMATION The advancement of biological-mediated nanoscience towards higher levels and novel benchmarks is readily apparent, owing to the use of non-toxic synthesis processes and the incorporation of various additional benefits. This study aimed to synthesize stable tin oxide nanoparticles (SnO2-NPs) using S. rhizophila as a mediator. METHODS The nanoparticles that were created by biosynthesis was examined using several analytical techniques, including Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM), X-ray diffraction (XRD), UV-visible (UV-vis) spectroscopy, and energy dispersive X-ray spectroscopy (EDS). RESULTS The results obtained from the characterization techniques suggest that S. rhizophila effectively catalyzed the reduction of SnCl2 to SnO2-NPs duration of 90 min at ambient temperature with the ƛmax of 328 nm. The size of the nano crystallite formations was measured to be 23 nm. The present study investigates nanoscale applications' antibacterial efficacy against four bacterial strains, including Klebsiella Sp, Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. The observed zone of inhibition for the nanoparticles (NPs) varied from 10 to 25 mm. The research findings demonstrate that the nanoparticles (NPs) are effective as antibacterial, phytotoxic, and cytotoxic agents.
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Affiliation(s)
- Soghra Nashath Omer
- School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, 632014, TN, India
| | - Venkatkumar Shanmugam
- School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, 632014, TN, India.
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Kameswaran S, Gujjala S, Zhang S, Kondeti S, Mahalingam S, Bangeppagari M, Bellemkonda R. Quenching and quorum sensing in bacterial bio-films. Res Microbiol 2024; 175:104085. [PMID: 37268165 DOI: 10.1016/j.resmic.2023.104085] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/04/2023]
Abstract
Quorum sensing (QS) is the ability of bacteria to monitor their population density and adjust gene expression accordingly. QS-regulated processes include host-microbe interactions, horizontal gene transfer, and multicellular behaviours (such as the growth and development of biofilm). The creation, transfer, and perception of bacterial chemicals known as autoinducers or QS signals are necessary for QS signalling (e.g. N-acylhomoserine lactones). Quorum quenching (QQ), another name for the disruption of QS signalling, comprises a wide range of events and mechanisms that are described and analysed in this study. In order to better comprehend the targets of the QQ phenomena that organisms have naturally developed and are currently being actively researched from practical perspectives, we first surveyed the diversity of QS-signals and QS-associated responses. Next, the mechanisms, molecular players, and targets related to QS interference are discussed, with a focus on natural QQ enzymes and compounds that function as QS inhibitors. To illustrate the processes and biological functions of QS inhibition in microbe-microbe and host-microbe interactions, a few QQ paradigms are described in detail. Finally, certain QQ techniques are offered as potential instruments in a variety of industries, including agriculture, medical, aquaculture, crop production, and anti-biofouling areas.
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Affiliation(s)
- Srinivasan Kameswaran
- Department of Botany, Vikrama Simhapuri University College, Kavali, Andhra Pradesh, India
| | - Sudhakara Gujjala
- Department of Biochemistry, Sri Krishnadevaray a University, Ananthapuram, Andhra Pradesh, India
| | - Shaoqing Zhang
- School of Chemistry and Civil Engineering, Shaoguan University, Shaoguan, 512005, PR China
| | - Suresh Kondeti
- Multi-Disciplinary Research Unit, Nizam's Institute of Medical Sciences, Hyderabad, 500082, India
| | - Sundararajan Mahalingam
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Manjunatha Bangeppagari
- Department of Cell Biology & Molecular Genetics, Sri Devaraj Urs Academy of Higher Education and Research (Deemed to Be University), Tamaka, Kolar, 563103, Karnataka, India
| | - Ramesh Bellemkonda
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
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Wijaya M, Delicia D, Waturangi DE. Control of pathogenic bacteria using marine actinobacterial extract with antiquorum sensing and antibiofilm activity. BMC Res Notes 2023; 16:305. [PMID: 37919800 PMCID: PMC10623884 DOI: 10.1186/s13104-023-06580-z] [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: 03/04/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023] Open
Abstract
OBJECTIVE The objectives of this research were to screen the anti-quorum sensing and antibiofilm activity of marine actinobacteria, isolated from several aquatic environments in Indonesia against several pathogenic bacteria, such as Staphylococcus aureus, Bacillus cereus, Enterococcus faecalis, Vibrio cholerae, Salmonella Typhimurium, and Pseudomonas aeruginosa. RESULTS Ten out of 40 actinobacteria were found to have anti-quorum sensing activity against wild-type Chromobacterium violaceum (ATCC 12472); however, the validation assay showed that only eight of 10 significantly inhibited the quorum sensing system of Chromobacterium violaceum CV026. The crude actinobacteria extracts inhibited and disrupted biofilm formation produced by pathogens. The highest antibiofilm inhibition was discovered in isolates 11AC (90%), 1AC (90%), CW17 (84%), TB12 (94%), 20PM (85%), CW01 (93%) against Staphylococcus aureus, Bacillus cereus, Enterococcus faecalis, Vibrio cholerae, Salmonella Typhimurium, and Pseudomonas aeruginosa, respectively. The highest biofilm destruction activity was observed for isolate 1AC (77%), 20PM (85%), 16PM (72%), CW01 (73%), 18PM (82%), 16PM (63%) against Staphylococcus aureus, Bacillus cereus, Enterococcus faecalis, Vibrio cholerae, Salmonella Typhimurium, and Pseudomonas aeruginosa, respectively. Actinobacteria isolates demonstrated promising anti-quorum and/or antibiofilm activity, interfering with the biofilm formation of tested pathogens. Appropriate formulations of these extracts could be developed as effective disinfectants, eradicating biofilms in many industries.
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Affiliation(s)
- Marco Wijaya
- Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jenderal Sudirman 51 Street, South Jakarta, DKI Jakarta, 12930, Indonesia
| | - Dea Delicia
- Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jenderal Sudirman 51 Street, South Jakarta, DKI Jakarta, 12930, Indonesia
| | - Diana Elizabeth Waturangi
- Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jenderal Sudirman 51 Street, South Jakarta, DKI Jakarta, 12930, Indonesia.
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Alothaim AS, Alhoqail WA, Menakha M, Vijayakumar R. Combining molecular modelling and experimental approaches to gain mechanistic insights into the LuxP drug target in Streptococcus pyogens. J Biomol Struct Dyn 2023:1-11. [PMID: 37642991 DOI: 10.1080/07391102.2023.2252079] [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: 03/07/2023] [Accepted: 08/20/2023] [Indexed: 08/31/2023]
Abstract
Autoinducer-2 can mediate inter- and intra-species communication signal between bacteria and these signals from AI-2 is noted from limited species of bacteria. In humans, S. pyogenes is a pathogen that causes a wide range of illnesses and can survive in the host system and transmit infection. The process by which S. pyogenes acquires the competence to live and disseminate infection remains unknown. We hypothesized that AI-2 and their receptors would play a significant role during infection, and for that present investigation provides the experimental and molecular insights. In the absence of details about the receptor LuxP and LuxQ, the screening approach provides supporting insights. The evolutionary relationship and similarities of the PBP domain (Spy 1535) and the signal transmission PDZ domain (Spy 1536) were studied in relation to their counterparts in other bacteria. Molecular docking and modeling confirmed the domain-enhanced specificity for AI-2 binding. In vitro studies showed that AI-2, which is present in the cell-free supernatant of S. pyogenes, regulates luminescence in P. luminous and biofilm development in E. coli using the LuxS reporter genes. Examination of S. pyogenes gene expression revealed modulation of virulence genes when the pathogen was exposed to V. harveyi HSL and AI-2. Therefore, S. pyogenes pathogenicity is sequentially regulated by AI-2 it acquires from other commensal bacteria. Overall, this study lays the groundwork for understanding the signalling mechanism from AI-2, which are critical to the pathogenic mechanism of S. pyogenes.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Abdulaziz S Alothaim
- Department of Biology, College of Science, Majmaah University, Al-Majmaah, Saudi Arabia
| | - Wardah A Alhoqail
- Department of Biology, College of Education, Majmaah University, Al-Majmaah, Saudi Arabia
| | - Muniraj Menakha
- Department of Bio-informatics, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
| | - Rajendran Vijayakumar
- Department of Biology, College of Science, Majmaah University, Al-Majmaah, Saudi Arabia
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Sushmitha TJ, Rajeev M, Kathirkaman V, Shivam S, Rao TS, Pandian SK. 3-Hydroxy coumarin demonstrates anti-biofilm and anti-hyphal efficacy against Candida albicans via inhibition of cell-adhesion, morphogenesis, and virulent genes regulation. Sci Rep 2023; 13:11687. [PMID: 37468600 DOI: 10.1038/s41598-023-37851-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/28/2023] [Indexed: 07/21/2023] Open
Abstract
Candida albicans, a common fungus of human flora, can become an opportunistic pathogen and causes invasive candidiasis in immunocompromised individuals. Biofilm formation is the prime cause of antibiotic resistance during C. albicans infections and treating biofilm-forming cells is challenging due to their intractable and persistent nature. The study intends to explore the therapeutic potential of naturally produced compounds by competitive marine bacteria residing in marine biofilms against C. albicans biofilm. To this end, 3-hydroxy coumarin (3HC), a compound identified from the cell-free culture supernatant of the marine bacterium Brevundimonas abyssalis, was found to exhibit anti-biofilm and anti-hyphal activity against both reference and clinical isolates of C. albicans. The compound demonstrated significant inhibitory effects on biofilms and impaired the yeast-to-hyphal transition, wrinkle, and filament morphology at the minimal biofilm inhibitory concentration (MBIC) of 250 µg mL-1. Intriguingly, quantitative PCR analysis of 3HC-treated C. albicans biofilm revealed significant downregulation of virulence genes (hst7, ume6, efg1, cph1, ras1, als1) associated with adhesion and morphogenesis. Moreover, 3HC displayed non-fungicidal and non-toxic characteristics against human erythrocytes and buccal cells. In conclusion, this study showed that marine biofilms are a hidden source of diverse therapeutic drugs, and 3HC could be a potent drug to treat C. albicans infections.
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Affiliation(s)
- T J Sushmitha
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, 630 003, India
| | - Meora Rajeev
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, 630 003, India
- Department of Biological Sciences and Bioengineering, Inha University, Inharo 100, Incheon, 22212, Republic of Korea
| | - Vellaisamy Kathirkaman
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, 630 003, India
| | - Singh Shivam
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, 630 003, India
| | - Toleti Subba Rao
- School of Arts and Sciences, Sai University, OMR, Paiyanur, Tamil Nadu, 603105, India
| | - Shunmugiah Karutha Pandian
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, 630 003, India.
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Ashraf N, Anas A, Sukumaran V, Gopinath G, Idrees Babu KK, Dinesh Kumar PK. Recent advancements in coral health, microbiome interactions and climate change. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 878:163085. [PMID: 36996987 DOI: 10.1016/j.scitotenv.2023.163085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 05/13/2023]
Abstract
Corals are the visible indicators of the disasters induced by global climate change and anthropogenic activities and have become a highly vulnerable ecosystem on the verge of extinction. Multiple stressors could act individually or synergistically which results in small to large scale tissue degradation, reduced coral covers, and makes the corals vulnerable to various diseases. The coralline diseases are like the Chicken pox in humans because they spread hastily throughout the coral ecosystem and can devastate the coral cover formed over centuries in an abbreviated time. The extinction of the entire reef ecosystem will alter the ocean and earth's amalgam of biogeochemical cycles causing a threat to the entire planet. The current manuscript provides an overview of the recent advancement in coral health, microbiome interactions and climate change. Culture dependent and independent approaches in studying the microbiome of corals, the diseases caused by microorganisms, and the reservoirs of coral pathogens are also discussed. Finally, we discuss the possibilities of protecting the coral reefs from diseases through microbiome transplantation and the capabilities of remote sensing in monitoring their health status.
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Affiliation(s)
- Nizam Ashraf
- CSIR - National Institute of Oceanography, Regional Centre, Kochi 682018, India
| | - Abdulaziz Anas
- CSIR - National Institute of Oceanography, Regional Centre, Kochi 682018, India.
| | - Vrinda Sukumaran
- CSIR - National Institute of Oceanography, Regional Centre, Kochi 682018, India
| | - Girish Gopinath
- Department of Climate Variability and Aquatic Ecosystems, Kerala University of Fisheries and Ocean Studies (KUFOS), Puduvypu Campus, Kochi 682 508, India
| | - K K Idrees Babu
- Department of Science and Technology, Kavaratti, Lakshadweep 682555, India
| | - P K Dinesh Kumar
- CSIR - National Institute of Oceanography, Regional Centre, Kochi 682018, India
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Angusamy A, Balasubramanian V, Arunmurugan B, Arunachalam K, Issac Abraham SVP, Murugesan S, Krishnasamy B, Sundaram J, Arumugam VR. Anti-infective potential of plant-derived quorum sensing inhibitors against multi-drug resistant human and aquatic bacterial pathogens. World J Microbiol Biotechnol 2023; 39:147. [PMID: 37022521 DOI: 10.1007/s11274-023-03578-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 03/10/2023] [Indexed: 04/07/2023]
Abstract
The present study intended to decipher the anti-infective potential of bioactive phytocompounds, such as rosmarinic acid, morin, naringin, chlorogenic acid, and mangiferin, against aquatic and human bacterial pathogens using Artemia spp. nauplii and Caenorhabditis elegans as animal models, respectively. Initially, the test compounds were screened against the QS traits in Vibrio spp., such as bioluminescence production and biofilm formation. The test compounds effectively inhibited the bioluminescence in V. harveyi. Further, the confocal laser scanning microscopic analysis revealed that these natural compounds could efficiently reduce the clumping morphology, a characteristic biofilm formation in Vibrio spp., without inhibiting bacterial growth. The results of in vivo analysis showed a significant increase in the survival of Artemia spp. nauplii infected with Vibrio spp. upon exposure to these compounds. Moreover, the compounds used in this study were already proven and reported for their quorum sensing inhibitory efficacy against Pseudomonas aeruginosa. Hence, the anti-infective efficacy of these compounds against P. aeruginosa (PAO1) and its clinical isolates (AS1 and AS2) was studied using C. elegans as a live animal model system. The results of time-killing assay deciphered that rosmarinic acid and naringin are being the most effective ones in rescuing the animals from P. aeruginosa infection followed by morin, mangiferin, and chlorogenic acid. Further, the toxicity results revealed that these compounds did not show any lethal effect on C. elegans and Artemia spp. nauplii at the tested concentrations. In conclusion, the phytochemicals used in this study were effective in controlling the QS-regulated virulence traits in Vibrio spp. and P. aeruginosa infections in Artemia spp. nauplii and C. elegans animal model systems, respectively.
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Affiliation(s)
- Annapoorani Angusamy
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
- Department of Zoology, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 600 025, India
| | - Vigneshkumar Balasubramanian
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
- Conservation of Coastal and Marine Resources (CMR) division, National Centre for Sustainable Coastal Management (NCSCM), Anna University campus, Tamil Nadu, 600 025, Chennai, India
| | - Balaji Arunmurugan
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Kannapan Arunachalam
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
- Department of Food Science and Technology, School of Agricultural Science, Shanghai Jiao Tong University, Shanghai, China
| | - Sybiya Vasantha Packiavathy Issac Abraham
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, 641 114, India
| | - Sivaranjani Murugesan
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
- Vaccine and Infectious Disease Organization-International Vaccine Centre, Saskatoon, SK, Canada
| | | | - Janarthanan Sundaram
- Department of Zoology, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 600 025, India
| | - Veera Ravi Arumugam
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India.
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Das SK, Vishakha K, Das S, Ganguli A. Study of Gelatin and Peppermint Oil Nanoemulsion Coating Against Food-Borne Pathogens, as Well as Its Effect on Shrimp Quality and Preservation. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2023. [DOI: 10.1080/10498850.2023.2174392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Sudip Kumar Das
- Department of Microbiology, Techno India University, Saltlake City, Kolkata, India
| | - Kumari Vishakha
- Department of Microbiology, Techno India University, Saltlake City, Kolkata, India
| | - Shatabdi Das
- Department of Microbiology, Techno India University, Saltlake City, Kolkata, India
| | - Arnab Ganguli
- Department of Microbiology, Techno India University, Saltlake City, Kolkata, India
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Lahiri D, Nag M, Dey A, Sarkar T, Pati S, Nirmal NP, Ray RR, Upadhye VJ, Pandit S, Moovendhan M, Kavisri M. Marine bioactive compounds as antibiofilm agent: a metabolomic approach. Arch Microbiol 2023; 205:54. [PMID: 36602609 DOI: 10.1007/s00203-022-03391-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/17/2022] [Accepted: 12/27/2022] [Indexed: 01/06/2023]
Abstract
The ocean is a treasure trove of both living and nonliving creatures, harboring incredibly diverse group of organisms. A plethora of marine sourced bioactive compounds are discovered over the past few decades, many of which are found to show antibiofilm activity. These are of immense clinical significance since the formation of microbial biofilm is associated with the development of high antibiotic resistance. Biofilms are also responsible to bring about problems associated with industries. In fact, the toilets and wash-basins also show degradation due to development of biofilm on their surfaces. Antimicrobial resistance exhibited by the biofilm can be a potent threat not only for the health care unit along with industries and daily utilities. Various recent studies have shown that the marine members of various kingdom are capable of producing antibiofilm compounds. Many such compounds are with unique structural features and metabolomics approaches are essential to study such large sets of metabolites. Associating holobiome metabolomics with analysis of their chemical attribute may bring new insights on their antibiofilm effect and their applicability as a substitute for conventional antibiotics. The application of computer-aided drug design/discovery (CADD) techniques including neural network approaches and structured-based virtual screening, ligand-based virtual screening in combination with experimental validation techniques may help in the identification of these molecules and evaluation of their drug like properties.
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Affiliation(s)
- Dibyajit Lahiri
- Department of Biotechnology, University of Engineering & Management, Kolkata, 700160, West Bengal, India
| | - Moupriya Nag
- Department of Biotechnology, University of Engineering & Management, Kolkata, 700160, West Bengal, India
| | - Ankita Dey
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, West Bengal, India
| | - Tanmay Sarkar
- Department of Food Processing Technology, Malda Polytechnic, West Bengal State Council of Technical Education, Government of West Bengal, Malda, 732102, West Bengal, India
| | - Siddhartha Pati
- Nat Nov Bioscience Private Limited, Balasore, 756001, Odisha, India
| | - Nilesh P Nirmal
- Institute of Nutrition, Mahidol University, 999 Phutthamonthon 4 Road, Salaya, 73170, Nakhon Pathom, Thailand.
| | - Rina Rani Ray
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, West Bengal, India.
| | - Vijay Jagdish Upadhye
- Center of Research for Development (CR4D), Parul Institute of Applied Sciences (PIAS), Parul University, Vadodara, Gujarat, India
| | - Soumya Pandit
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, 201306, India
| | - M Moovendhan
- Centre for Ocean Research (DST-FIST Sponsored Centre) MoES-Earth Science & Technology Cell, Col. Dr. Jeppiaar Research Park, Sathyabama Institute of Science and Technology, Chennai, 600119, Tamil Nadu, India
| | - M Kavisri
- Department of Civil Engineering, School of Building and Environment, Sathyabama Institute of Science and Technology, Chennai, 600119, India
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Manikkasundaram V, Baskaran A, Kaari M, Angamuthu V, Venugopal G, Manikkam R. Production and characterization of glycolipid biosurfactant from
Streptomyces enissocaesilis
HRB1
and its evaluation for biomedical and bioremediation applications. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vaishnavi Manikkasundaram
- Centre for Drug Discovery and Development Sathyabama Institute of Science and Technology Chennai Tamil Nadu India
| | - Abirami Baskaran
- Centre for Drug Discovery and Development Sathyabama Institute of Science and Technology Chennai Tamil Nadu India
| | - Manigundan Kaari
- Centre for Drug Discovery and Development Sathyabama Institute of Science and Technology Chennai Tamil Nadu India
| | - Vignesh Angamuthu
- Centre for Drug Discovery and Development Sathyabama Institute of Science and Technology Chennai Tamil Nadu India
| | - Gopikrishnan Venugopal
- Centre for Drug Discovery and Development Sathyabama Institute of Science and Technology Chennai Tamil Nadu India
| | - Radhakrishnan Manikkam
- Centre for Drug Discovery and Development Sathyabama Institute of Science and Technology Chennai Tamil Nadu India
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12
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Bacteriophage DW-EC with the capability to destruct and inhibit biofilm formed by several pathogenic bacteria. Sci Rep 2022; 12:18539. [PMID: 36329103 PMCID: PMC9633697 DOI: 10.1038/s41598-022-22042-1] [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: 07/25/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022] Open
Abstract
Biofilm formation by pathogenic bacteria is a major challenge in the food industry. Once a biofilm is established, such as on food processing equipment, it becomes more difficult to eradicate. Although physical and chemical treatments are often used to control biofilm formation, these treatments can have significant drawbacks. Alternative biofilm treatments are needed. Phage DW-EC was isolated from dawet, an Indonesian traditional Ready-To-Eat food, which has high specificity for Enterohaemorrhagic Escherichia coli (EHEC), Enteropathogenic E. coli (EPEC), and Enterotoxigenic E. coli (ETEC). Phage DW-EC produces several enzymes that can prevent the development of biofilm and biofilm eradication. Depolymerase enzymes break down the polysaccharides layer on the biofilms can lead to biofilm damage. On the other hand, endolysin and putative like-T4 lysozyme will lyse and kill a bacterial cell, thereby preventing biofilm growth. This research aims to determine the capability of previously identified phage DW-EC to inhibit and destroy biofilms produced by several foodborne pathogens. Phage DW-EC formed plaques on the bacterial lawns of EHEC, EPEC, and ETEC. The efficiency of plating (EOP) values for EHEC, EPEC, ETEC, and Bacillus cereus were 1.06, 0.78. 0.70, and 0.00, demonstrating that DW-EC was effective in controlling pathogenic E. coli populations. Furthermore, phage DW-EC showed anti-biofilm activity against foodborne pathogenic bacteria on polystyrene and stainless-steel substrates. DW-EC biofilm inhibition and destruction activities against pathogenic E. coli were significantly higher than against B. cereus biofilms, which was indicated by a lower density of the biofilm than B. cereus. Microscopic visualization verified that bacteriophage DW-EC effectively controlled EHEC, EPEC, and ETEC biofilms. The results showed that DW-EC could inhibit and destroy biofilm, making it promising to be used as an anti-biofilm candidate for polystyrene and stainless steel equipment in the food industry.
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Antibiofilm Efficacy of Quercetin against Vibrio parahaemolyticus Biofilm on Food-Contact Surfaces in the Food Industry. Microorganisms 2022; 10:microorganisms10101902. [PMID: 36296179 PMCID: PMC9610505 DOI: 10.3390/microorganisms10101902] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 11/21/2022] Open
Abstract
Vibrio parahaemolyticus, one of the most common foodborne pathogenic bacteria that forms biofilms, is a persistent source of concern for the food industry. The food production chain employs a variety of methods to control biofilms, although none are completely successful. This study aims to evaluate the effectiveness of quercetin as a food additive in reducing V. parahaemolyticus biofilm formation on stainless-steel coupons (SS) and hand gloves (HG) as well as testing its antimicrobial activities. With a minimum inhibitory concentration (MIC) of 220 µg/mL, the tested quercetin exhibited the lowest bactericidal action without visible growth. In contrast, during various experiments in this work, the inhibitory efficacy of quercetin at sub-MICs levels (1/2, 1/4, and 1/8 MIC) against V. parahaemolyticus was examined. Control group was not added with quercetin. With increasing quercetin concentration, swarming and swimming motility, biofilm formation, and expression levels of target genes linked to flagellar motility (flaA, flgL), biofilm formation (vp0952, vp0962), virulence (VopQ, vp0450), and quorum-sensing (aphA, luxS) were all dramatically suppressed. Quercetin (0−110 μg/mL) was investigated on SS and HG surfaces, the inhibitory effect were 0.10−2.17 and 0.26−2.31 log CFU/cm2, respectively (p < 0.05). Field emission scanning electron microscopy (FE-SEM) corroborated the findings because quercetin prevented the development of biofilms by severing cell-to-cell contacts and inducing cell lysis, which resulted in the loss of normal cell shape. Additionally, there was a significant difference between the treated and control groups in terms of motility (swimming and swarming). According to our research, quercetin produced from plants should be employed as an antibiofilm agent in the food sector to prevent the growth of V. parahaemolyticus biofilms. These results indicate that throughout the entire food production chain, bacterial targets are of interest for biofilm reduction with alternative natural food agents in the seafood industry.
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Antimicrobial Efficacy of Quercetin against Vibrio parahaemolyticus Biofilm on Food Surfaces and Downregulation of Virulence Genes. Polymers (Basel) 2022; 14:polym14183847. [PMID: 36145988 PMCID: PMC9505375 DOI: 10.3390/polym14183847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 12/24/2022] Open
Abstract
For the seafood industry, Vibrio parahaemolyticus, one of the most prevalent food-borne pathogenic bacteria that forms biofilms, is a constant cause of concern. There are numerous techniques used throughout the food supply chain to manage biofilms, but none are entirely effective. Through assessing its antioxidant and antibacterial properties, quercetin will be evaluated for its ability to prevent the growth of V. parahaemolyticus biofilm on shrimp and crab shell surfaces. With a minimum inhibitory concentration (MIC) of 220 µg/mL, the tested quercetin exhibited the lowest bactericidal action without visible growth of bacteria. In contrast, during various experiments in this work, the inhibitory efficacy of quercetin without (control) and with sub-MICs levels (1/2, 1/4, and 1/8 MIC) against V. parahaemolyticus was examined. With increasing quercetin concentration, swarming and swimming motility, biofilm formation, and expression levels of related genes linked to flagella motility (flaA and flgL), biofilm formation (vp0952 and vp0962), and quorum-sensing (luxS and aphA) were all dramatically reduced (p < 0.05). Quercetin (0−110 μg/mL) was investigated on shrimp and crab shell surfaces, the inhibitory effects were 0.68−3.70 and 0.74−3.09 log CFU/cm2, respectively (p < 0.05). The findings were verified using field emission scanning electron microscopy (FE-SEM), which revealed quercetin prevented the development of biofilms by severing cell-to-cell contacts and induced cell lysis, which resulted in the loss of normal cell shape. Furthermore, there was a substantial difference in motility between the treatment and control groups (swimming and swarming). According to our findings, plant-derived quercetin should be used as an antimicrobial agent in the food industry to inhibit the establishment of V. parahaemolyticus biofilms. These findings suggest that bacterial targets are of interest for biofilm reduction with alternative natural food agents in the seafood sector along the entire food production chain.
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Roy PK, Song MG, Park SY. The Inhibitory Effect of Quercetin on Biofilm Formation of Listeria monocytogenes Mixed Culture and Repression of Virulence. Antioxidants (Basel) 2022; 11:antiox11091733. [PMID: 36139807 PMCID: PMC9495692 DOI: 10.3390/antiox11091733] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 02/08/2023] Open
Abstract
Listeria monocytogenes is the species of foodborne pathogenic bacteria that causes the infection listeriosis. The food production chain employs various methods to control biofilms, although none are completely successful. This study evaluates the effectiveness of quercetin as a food additive in reducing L. monocytogenes mixed cultures (ATCC19113, ATCC19117, and ATCC15313) biofilm formation on stainless steel (SS), silicon rubber (SR), and hand glove (HG) coupons, as well as tests its antimicrobial activities. With a minimum inhibitory concentration (MIC) of 250 µg/mL, the tested quercetin exhibited the lowest bactericidal action with no visible bacterial growth. In contrast, during various experiments in this work, the inhibitory efficacy of quercetin at sub-MICs levels (1/2, 1/4, and 1/8 MIC) against L. monocytogenes was examined. A control group was not added with quercetin. The current study also investigates the effect of quercetin on the expression of different genes engaged in motility (flaA, fbp), QS (agrA), and virulence (hlyA, prfA). Through increasing quercetin concentration, swarming and swimming motility, biofilm formation, and expression levels of target genes linked to flagella motility, virulence, and quorum-sensing were all dramatically reduced. Quercetin (0−125 μg/mL) was investigated on the SS, SR, and HG surfaces; the inhibitory effects were 0.39−2.07, 0.09−1.96 and 0.03−1.69 log CFU/cm2, respectively (p < 0.05). Field-emission scanning electron microscopy (FE-SEM) corroborated the findings because quercetin prevented the development of biofilms by severing cell-to-cell contacts and inducing cell lysis, which resulted in the loss of normal cell shape. Our findings suggest that plant-derived quercetin should be used as an antimicrobial agent in the food industry to control the development of L. monocytogenes biofilms. These outcomes suggest that bacterial targets are of interest for biofilm reduction, with alternative natural food agents in the food sector along the entire food production chain.
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Affiliation(s)
| | | | - Shin Young Park
- Correspondence: ; Tel.: +82-55-772-9143; Fax: +82-55-772-9149
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Anti-Biofilm Activity and Biocontrol Potential of Streptomyces Cultures Against Ralstonia solanacearum on Tomato Plants. Indian J Microbiol 2022; 62:32-39. [PMID: 35068601 PMCID: PMC8758874 DOI: 10.1007/s12088-021-00963-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 07/20/2021] [Indexed: 10/20/2022] Open
Abstract
Biological control of phytopathogen is a promising approach when compared to the use of chemical agents. In the present study, seven Streptomyces cultures showing promising anti biofilm activity against Ralstonia solanacearum was mixed individually with farmyard manure. All the Streptomyces fortified farmyard manure (SFYM) were screened for plant growth promotion and control of bacterial wilt caused by R. solanacearum on tomato. Further, the ability of SFYM on stimulating the production of defense-related enzymes in R. solanacearum-inoculated tomato plants was investigated. When compared to the control tomato plants, the SFYM-treated plants had longer shoot and root length along with higher fresh and dry weight. The maximum level of chlorophyll was observed in the plants treated with strain UP1A-1 (2.21 ± 0.18 mg g-1). Strain UP1A-1 also showed maximum of 96.8 ± 1.4% biocontrol efficacy in tomato plants challenged with R. solanacearum. In addition, the UP1A-1 treated tomato plants showed maximum accumulation of total phenolics (3.02 ± 0.09 mg g-1) after 6 days of pathogen inoculation (DPI). Similarly, tomato plants treated with UP1A-1 showed highest level of peroxides, polyphenol oxidase and phenylalanine ammonia lyase during 1-9 DPI. Findings of present study revealed that the Streptomyces culture UP1A-1 fortified farm yard manure could be applied as an eco-friendly alternative to synthetic agents for controlling bacterial wilt in tomato plants.
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Aman M, Aneeqha N, Bristi K, Deeksha J, Afza N, Sindhuja V, Shastry RP. Lactic acid bacteria inhibits quorum sensing and biofilm formation of Pseudomonas aeruginosa strain JUPG01 isolated from rancid butter. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102115] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Biosurfactant synergized with marine bacterial DNase disrupts polymicrobial biofilms. Folia Microbiol (Praha) 2021; 66:831-842. [PMID: 34169451 DOI: 10.1007/s12223-021-00876-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 05/17/2021] [Indexed: 10/21/2022]
Abstract
Globally, the occurrence of biofilm associated infection has become an alarming menace to the medical fraternity because the thick exopolysaccharide layer encasing the biofilms makes the biofilm producing pathogens inherently resistant to antibiotics. Candida albicans, the most common pathogen among Candida spp. is the causative agent for superficial and invasive candidiasis. The morphological phase switching from yeast to hyphal form is one of the virulent traits of C. albicans critical for its pathogenicity. Owing to the emergence of antifungal resistance among this opportunistic fungus, there is a dire need for improvised alternative antifungal agents. In the present study, we have evaluated a biosurfactant from a marine bacterium for its biofilm disruption ability against C. albicans. This biosurfactant had the potential to disrupt biofilms as well as to inhibit the morphological transition from yeast to hyphae. In addition, this biosurfactant showed enhance disruption of mixed species biofilms of C. albicans and Staphylococcus epidermidis when combined with DNase isolated from marine bacteria. From the results obtained, it is evident that the biosurfactant could act as a potential antibiofilm agent against drug resistant C. albicans strains.
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Nsayef Muslim S, Mohammed Ali AN, Auda IG. Anti-biofilm and anti-virulence effects of silica oxide nanoparticle-conjugation of lectin purified from Pseudomonas aeruginosa. IET Nanobiotechnol 2021; 15:318-328. [PMID: 34694672 PMCID: PMC8675845 DOI: 10.1049/nbt2.12022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/07/2020] [Accepted: 11/02/2020] [Indexed: 11/28/2022] Open
Abstract
Pseudomonas aeruginosa lectin is purified and nanoparticle-conjugated in an attempt to inhibit biofilm formation. Thirteen (23.6%) P. aeruginosa isolates are obtained from chicken meat samples, of which 30.8% are biofilm producers and 69.2% are lectin producers. Lectin is purified 36.8-fold to final specific activity of 506.9 U/mg. Four nanoparticle types are prepared via laser ablation: platinum (Pt), gold (Au), silica oxide (SiO2 ), and tin oxide (SnO2 ). The four types are characterised, and pulse feeding is used to conjugate the lectin and nanoparticles. Pt, Au, SiO2, and SnO2 nanoparticles inhibit biofilm formation, especially SiO2 nanoparticles, which have higher effectiveness when conjugated with purified lectin. SiO2 -conjugated lectin significantly (p < 0.05) inhibits biofilm formation more effectively than control and other nanoparticle-conjugated lectins. Au-, Pt nanoparticle-, and SnO2 -conjugated lectins inhibit biofilm significantly compared with control (p < 0.05), and rhlR gene expression is decreased in the presence of SiO2 -conjugated lectin. Furthermore, lectin and Pt, Au, SiO2 and SnO2 nanoparticles separately, and their conjugated lectins, are effective biofilm inhibitors. Of these, SiO2 -conjugated lectin was most significant as an anti-biofilm. Moreover, virulence factors regulon and RhlR were reduced by SiO2 -conjugated lectin, indicating that this conjugation may also decrease the virulence of P. aeruginosa.
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Lahiri D, Nag M, Sarkar T, Dutta B, Ray RR. Antibiofilm Activity of α-Amylase from Bacillus subtilis and Prediction of the Optimized Conditions for Biofilm Removal by Response Surface Methodology (RSM) and Artificial Neural Network (ANN). Appl Biochem Biotechnol 2021; 193:1853-1872. [PMID: 33644831 DOI: 10.1007/s12010-021-03509-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/07/2021] [Indexed: 11/26/2022]
Abstract
α-amylase is known to have antibiofilm activity against biofilms of both Gram positive and Gram-negative bacterial strains. Partially purified α-amylase from Bacillus subtilis was found to have inhibit biofilm formed by P. aeruginosa and S. aureus. The spectrophotometric and microscopic studies revealed that the antibiofilm efficacy of the working strain is greater than commercially purchased α-amylase. Response surface methodology (RSM) and artificial neural network (ANN) help to predict the optimum conditions [pH 8, treatment time 6 h and enzyme concentration (200 µg/mL)] for maximum biofilm eradication. This was confirmed by several in vitro experiments. Molecular docking interactions of α-amylase with the extracellular polymeric substances (EPS) of both P. aeruginosa and S. aureus indicate towards the existence of an efficient energy driven spontaneous process. Thus, this study highlights a combination of experimental and computational approach showing the naturally extracted α-amylase from B. subtilis having the potency of removing the biofilms of harmful bacterial strains involved in causing various nosocomial infections.
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Affiliation(s)
- Dibyajit Lahiri
- Department of Biotechnology, University of Engineering & Management, Kolkata, India
| | - Moupriya Nag
- Department of Biotechnology, University of Engineering & Management, Kolkata, India
| | - Tanmay Sarkar
- Department of Food Technology & Biochemical Engineering, Jadavpur University, Kolkata, India
- Malda Polytechnic, West Bengal State Council of Technical Education, Govt. of West Bengal, West Bengal, Malda, India
| | - Bandita Dutta
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, West Bengal, India
| | - Rina Rani Ray
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, West Bengal, India.
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Rashiya N, Padmini N, Ajilda AAK, Prabakaran P, Durgadevi R, Veera Ravi A, Ghosh S, Sivakumar N, Selvakumar G. Inhibition of biofilm formation and quorum sensing mediated virulence in Pseudomonas aeruginosa by marine sponge symbiont Brevibacterium casei strain Alu 1. Microb Pathog 2020; 150:104693. [PMID: 33352215 DOI: 10.1016/j.micpath.2020.104693] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 10/22/2022]
Abstract
The alternative antimicrobial strategies that mitigate the threat of antibiotic resistance is the quorum-sensing inhibition (QSI) mechanism, which targets autoinducer dependent virulence gene expression in bacterial pathogens. N-acyl homoserine lactone (AHL) acts as a key regulator in the production of virulence factors and biofilm formation in Pseudomonas aeruginosa PAO1 and violacein pigment production in Chromobacterium violaceum ATCC 12472. In the present study, the marine sponge Haliclona fibulata symbiont Brevibacterium casei strain Alu 1 showed potential QSI activity in a concentration-dependent manner (0.5-2% v/v) against the N-acyl homoserine lactone (AHL)-mediated violacein production in C. violaceum (75-95%), and biofilm formation (53-96%), protease (27-82%), pyocyanin (82-95%) and pyoverdin (29-38%) productions in P. aeruginosa. Further, the microscopic analyses validated the antibiofilm activity of the cell-free culture supernatant (CFCS) of B. casei against P. aeruginosa. Subsequently, the biofilm and pyoverdin inhibitory efficacy of the ethyl acetate extract of B. casei CFCS was assessed against P. aeruginosa. Further, the gas chromatography-mass spectrometry (GC-MS) analysis revealed the presence of variety of components in which diethyl phthalate was found to be a major active component. This phthalate ester, known as diethyl ester of phthalic acid, could act as a potential therapeutic agent for preventing bacterial biofilm and virulence associated infectious diseases.
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Affiliation(s)
- Nagasundaram Rashiya
- Department of Microbiology, Alagappa University, Karaikudi, 630003, Tamil Nadu, India
| | - Nagarajan Padmini
- Department of Microbiology, Alagappa University, Karaikudi, 630003, Tamil Nadu, India
| | | | - Pandiyan Prabakaran
- Department of Biomedical Sciences, Alagappa University, Karaikudi, 630003, Tamil Nadu, India
| | - Ravindran Durgadevi
- Department of Biotechnology, Alagappa University, Karaikudi, 630003, Tamil Nadu, India
| | - Arumugam Veera Ravi
- Department of Biotechnology, Alagappa University, Karaikudi, 630003, Tamil Nadu, India
| | - Sougata Ghosh
- Department of Microbiology, School of Science, RK University, Rajkot, Gujarat, 360020, India
| | - Natesan Sivakumar
- School of Biotechnology, Madurai Kamaraj University, Madurai, Tamil Nadu, 625021, India
| | - Gopal Selvakumar
- Department of Microbiology, Alagappa University, Karaikudi, 630003, Tamil Nadu, India.
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An Evaluation of the Antibacterial Properties of Tormentic Acid Congener and Extracts From Callistemon viminalis on Selected ESKAPE Pathogens and Effects on Biofilm Formation. Adv Pharmacol Pharm Sci 2020; 2020:8848606. [PMID: 33225299 PMCID: PMC7669338 DOI: 10.1155/2020/8848606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 10/26/2020] [Accepted: 10/28/2020] [Indexed: 11/17/2022] Open
Abstract
ESKAPE pathogens, namely, Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species, are responsible for a majority of all healthcare-acquired infections (HAI). The bacteria cause nosocomial infections in immunocompromised patients. Extracts from Callistemon viminalis have been shown to have antibacterial, antifungal, and anti-inflammatory activities. Tormentic acid congener, a pentacyclic triterpene saponin, was isolated from C. viminalis leaves. This study aimed to investigate the antibacterial effects of tormentic acid congener and leaf extracts on biofilm formation by A. baumannii, S. aureus, S. pyogenes, and P. aeruginosa. The antibacterial effects were determined by the microbroth dilution method, and ciprofloxacin was used as the standard antibacterial drug. Biofilm formation and detachment assays were performed using crystal violet staining. Production of extracellular polymeric DNA and polysaccharides from biofilms was also determined. Tormentic acid congener showed time-dependent antibacterial activity against P. aeruginosa with a MIC of 100 µg/ml and caused significant protein leakage. Antibacterial activity was found when tormentic acid congener was tested against both S. aureus and P. aeruginosa. The MICs were found to be 25 µg/ml and 12.5 µg/ml for P. aeruginosa and S. aureus cells, respectively. S. pyogenes was found to be susceptible to tormentic acid congener and the hydroethanolic extract with an MIC of 100 µg/ml and 25 µg/ml, respectively. A. baumannii was found not to be susceptible to the compound or the extracts. The compound and the extracts caused a significant decrease in the biofilm extracellular polysaccharide content of S. pyogenes. The extracts and tormentic acid congener caused detachment of biofilms and decreased the release of extracellular DNA and capsular polysaccharides from biofilms of P. aeruginosa and S. aureus. Tormentic acid congener and extracts, thus, have significant antibacterial and antibiofilm activities on these selected ESKAPE bacteria and can act as source lead compounds for the development of antibacterial triterpenoids.
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Juntarachot N, Sirilun S, Kantachote D, Sittiprapaporn P, Tongpong P, Peerajan S, Chaiyasut C. Anti- Streptococcus mutans and anti-biofilm activities of dextranase and its encapsulation in alginate beads for application in toothpaste. PeerJ 2020; 8:e10165. [PMID: 33240599 PMCID: PMC7678491 DOI: 10.7717/peerj.10165] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/22/2020] [Indexed: 01/01/2023] Open
Abstract
Background The accumulation of plaque causes oral diseases. Dental plaque is formed on teeth surfaces by oral bacterial pathogens, particularly Streptococcus mutans, in the oral cavity. Dextranase is one of the enzymes involved in antiplaque accumulation as it can prevent dental caries by the degradation of dextran, which is a component of plaque biofilm. This led to the idea of creating toothpaste containing dextranase for preventing oral diseases. However, the dextranase enzyme must be stable in the product; therefore, encapsulation is an attractive way to increase the stability of this enzyme. Methods The activity of food-grade fungal dextranase was measured on the basis of increasing ratio of reducing sugar concentration, determined by the reaction with 3, 5-dinitrosalicylic acid reagent. The efficiency of the dextranase enzyme was investigated based on its minimal inhibitory concentration (MIC) against biofilm formation by S. mutans ATCC 25175. Box-Behnken design (BBD) was used to study the three factors affecting encapsulation: pH, calcium chloride concentration, and sodium alginate concentration. Encapsulation efficiency (% EE) and the activity of dextranase enzyme trapped in alginate beads were determined. Then, the encapsulated dextranase in alginate beads was added to toothpaste base, and the stability of the enzyme was examined. Finally, sensory test and safety evaluation of toothpaste containing encapsulated dextranase were done. Results The highest activity of the dextranase enzyme was 4401.71 unit/g at a pH of 6 and 37 °C. The dextranase at its MIC (4.5 unit/g) showed strong inhibition against the growth of S. mutans. This enzyme at 1/2 MIC also showed a remarkable decrease in biofilm formation by S. mutans. The most effective condition of dextranase encapsulation was at a pH of 7, 20% w/v calcium chloride and 0.85% w/v sodium alginate. Toothpaste containing encapsulated dextranase alginate beads produced under suitable condition was stable after 3 months of storage, while the sensory test of the product was accepted at level 3 (like slightly), and it was safe. Conclusion This research achieved an alternative health product for oral care by formulating toothpaste with dextranase encapsulated in effective alginate beads to act against cariogenic bacteria, like S. mutants, by preventing dental plaque.
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Affiliation(s)
- Nucharee Juntarachot
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Mueang Chiang Mai, Chiang Mai, Thailand
| | - Sasithorn Sirilun
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Mueang Chiang Mai, Chiang Mai, Thailand
| | - Duangporn Kantachote
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Phakkharawat Sittiprapaporn
- Brain Science and Engineering Innovation Research Group, School of Anti-Aging and Regenerative Medicine and Department of Anti-Aging Science, School of Anti-Aging and Regenerative Medicine, Mae Fah Luang University, Wattana, Bangkok, Thailand
| | - Piyachat Tongpong
- Brain Science and Engineering Innovation Research Group, School of Anti-Aging and Regenerative Medicine and Department of Anti-Aging Science, School of Anti-Aging and Regenerative Medicine, Mae Fah Luang University, Wattana, Bangkok, Thailand
| | - Sartjin Peerajan
- Health Innovation Institute, Mueang Chiang Mai, Chiang Mai, Thailand
| | - Chaiyavat Chaiyasut
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Mueang Chiang Mai, Chiang Mai, Thailand
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Juntarachot N, Kantachote D, Peerajan S, Sirilun S, Chaiyasut C. Optimization of Fungal Dextranase Production and Its Antibiofilm Activity, Encapsulation and Stability in Toothpaste. Molecules 2020; 25:molecules25204784. [PMID: 33081074 PMCID: PMC7587561 DOI: 10.3390/molecules25204784] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 12/17/2022] Open
Abstract
Dextranase catalyzes the degradation of the substrate dextran, which is a component of plaque biofilm. This enzyme is involved in antiplaque accumulation, which can prevent dental caries. The activity of crude dextranase from Penicillium roquefortii TISTR 3511 was assessed, and the maximum value (7.61 unit/g) was obtained at 37 °C and pH 6. The Plackett–Burman design was used to obtain significant factors for enhancing fungal dextranase production, and three influencing factors were found: Dextran, yeast extract concentration and inoculum age. Subsequently, the significant factors were optimized with the Box–Behnken design, and the most suitable condition for dextranase activity at 30.24 unit/g was achieved with 80 g/L dextran, 30 g/L yeast extract and five day- old inoculum. The use of 0.85% alginate beads for encapsulation exhibited maximum dextranase activity at 25.18 unit/g beads, and this activity was stable in toothpaste for three months of testing. This study explored the potential production of fungal dextranase under optimal conditions and its encapsulation using alginate for the possibility of applying encapsulated dextranase as an additive in toothpaste products for preventing dental caries.
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Affiliation(s)
- Nucharee Juntarachot
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Duangporn Kantachote
- Department of Microbiology, Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai 90112, Thailand;
| | | | - Sasithorn Sirilun
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand;
- Correspondence: (S.S.); (C.C.)
| | - Chaiyavat Chaiyasut
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand;
- Correspondence: (S.S.); (C.C.)
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Das S, Vishakha K, Banerjee S, Mondal S, Ganguli A. Sodium alginate-based edible coating containing nanoemulsion of Citrus sinensis essential oil eradicates planktonic and sessile cells of food-borne pathogens and increased quality attributes of tomatoes. Int J Biol Macromol 2020; 162:1770-1779. [PMID: 32810536 DOI: 10.1016/j.ijbiomac.2020.08.086] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/08/2020] [Accepted: 08/09/2020] [Indexed: 01/14/2023]
Abstract
There is a growing interest from the worldwide scientific community in formulating edible- biodegradable coatings to replace non-biodegradable and expensive commercial wax-based coatings for preserving postharvest quality attributes of vegetables including tomatoes. Postharvest tomatoes are a suspected vehicle for both Salmonella and Listeria in food poisoning incidents. In this work, the effectiveness of edible nano-emulsion coatings containing sweet orange essential oil and sodium alginate were prepared and characterized, then evaluated antibacterial and antibiofilm activity against Salmonella and Listeria and simultaneously, examined its coating effect on various quality characteristics of tomatoes at 22 ± 2 °C over a 15 days storage period. DLS (Dynamic light scattering) study revealed stable nanoemulsion formulation with 43.23 nm particle size. The high whiteness index of nanoemulsion has a positive impact on product marketability and desirability. Antibacterial and antibiofilm studies revealed nanoemulsion effectively eradicate both sessile and planktonic forms of Salmonella and Listeria in both single and multi-species culture conditions. Tomatoes coated with edible coating significantly enhanced firmness up to 33%, decreased total mesophilic bacteria including Salmonella and Listeria, and reduced weight loss up to 3 fold lower than uncoated one. Sensory analysis revealed that the use of the edible coating increased the total acceptance scores of tomatoes.
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Affiliation(s)
- Shatabdi Das
- Department of Microbiology, Techno India University, EM-4 Sector-V, Salt Lake City, Kolkata 700091, West Bengal, India
| | - Kumari Vishakha
- Department of Microbiology, Techno India University, EM-4 Sector-V, Salt Lake City, Kolkata 700091, West Bengal, India
| | - Satarupa Banerjee
- Department of Microbiology, Techno India University, EM-4 Sector-V, Salt Lake City, Kolkata 700091, West Bengal, India
| | - Sandhimita Mondal
- Department of Microbiology, Techno India University, EM-4 Sector-V, Salt Lake City, Kolkata 700091, West Bengal, India.
| | - Arnab Ganguli
- Department of Microbiology, Techno India University, EM-4 Sector-V, Salt Lake City, Kolkata 700091, West Bengal, India.
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Modolon F, Barno AR, Villela HDM, Peixoto RS. Ecological and biotechnological importance of secondary metabolites produced by coral-associated bacteria. J Appl Microbiol 2020; 129:1441-1457. [PMID: 32627318 DOI: 10.1111/jam.14766] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/20/2020] [Accepted: 06/28/2020] [Indexed: 12/16/2022]
Abstract
Symbiotic relationships between corals and their associated micro-organisms are essential to maintain host homeostasis. Coral-associated bacteria (CAB) can have different beneficial roles in the coral metaorganism, such as metabolizing essential nutrients for the coral host and protecting the coral from pathogens. Many CAB exert these functions via secondary metabolites, which include antibacterial, antifouling, antitumour, antiparasitic and antiviral compounds. This review describes how analysis of CAB has led to the discovery of secondary metabolites with potential biotechnological applications. The most commonly found types of secondary metabolites, antimicrobial and antibiofilm compounds, are emphasized and described. Recently developed methods that can be applied to enhance the culturing of CAB from shallow-water reefs and the less-studied deep-sea coral reefs are also discussed. Last, we suggest how the combined use of meta-omics and innovative growth-diffusion techniques can vastly improve the discovery of novel compounds in coral environments.
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Affiliation(s)
- F Modolon
- Department of Microbiology, Paulo de Góes Microbiology Institute, Federal University of Rio De Janeiro, Rio de Janeiro, RJ, Brazil
| | - A R Barno
- Department of Microbiology, Paulo de Góes Microbiology Institute, Federal University of Rio De Janeiro, Rio de Janeiro, RJ, Brazil
| | - H D M Villela
- Department of Microbiology, Paulo de Góes Microbiology Institute, Federal University of Rio De Janeiro, Rio de Janeiro, RJ, Brazil
| | - R S Peixoto
- Department of Microbiology, Paulo de Góes Microbiology Institute, Federal University of Rio De Janeiro, Rio de Janeiro, RJ, Brazil.,IMAM-AquaRio - Rio de Janeiro Aquarium Research Center, Rio de Janeiro, RJ, Brazil
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Combined effects of Allium sativum and Cuminum cyminum essential oils on planktonic and biofilm forms of Salmonella typhimurium isolates. 3 Biotech 2020; 10:315. [PMID: 32596100 DOI: 10.1007/s13205-020-02286-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 06/01/2020] [Indexed: 12/20/2022] Open
Abstract
Sa lmonella typhimurium (S. typhimurium) represents an important global public health problem and has the ability to survive under desiccation conditions in foods and food processing facilities for years. The aim of this study was to investigate the effects of Allium sativum (A. sativum) and Cuminum cyminum (C. cyminum) essential oils (EOs) against planktonic growth, biofilm formation and quorum sensing (QS) of S. Typhimurium isolates, the strong biofilm producers. The major components of EOs were determined by gas chromatography-mass spectrometry (GC-MS). Biofilm formation of S. Typhimurium isolates was measured by crystal violet staining. Then, the effects of the EOs on the planktonic cell growth (using determination of minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC)), measurement of the synergistic effects of EOs (using checkerboard method), biofilm formation (using microtiter-plate test and scanning electron microscope (SEM)), and expression of QS and cellulose synthesis genes (using quantitative real-time PCR) were assessed. Finally, tetrazolium-based colorimetric (MTT) assay was used to examine EOs cytotoxicity on the Vero cell line. GC-MS analysis showed that terpineol, carene and pinene in C. cyminum EO and sulfur compounds in A. sativum EO were the major components of the plant extract. The Geometric mean of MIC values of the A. sativum and C. cyminum were 0.66 and 2.62 μL mL-1, respectively. The geometric means of the fractional inhibitory concentration index (FICi) for both EOs were calculated as 1.05. The qPCR results showed that MIC/2 concentrations of both EOs significantly down-regulated of QS (sdiA and luxS) and cellulose synthesis (csgD and adrA) genes. Scanning electron microscopy showed the EOs reduced the amount of S. Typhimurium mature biofilm. In general, we showed that C. cyminum and A. sativum EOs can be considered as the potential agents against planktonic and biofilm form of S. Typhimurium without any concern of cytotoxic effect at 4 MIC concentrations on the eukaryotic Vero cells.
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Nallasamy P, Ramalingam T, Nooruddin T, Shanmuganathan R, Arivalagan P, Natarajan S. Polyherbal drug loaded starch nanoparticles as promising drug delivery system: Antimicrobial, antibiofilm and neuroprotective studies. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.01.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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In vitro assessment of antimicrobial, antibiofilm and larvicidal activities of bioactive nickel metal organic framework. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101560] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Characterization of Extracellular Protease from the Haloarcheon Halococcus sp. Strain GUGFAWS-3 (MF425611). Curr Microbiol 2020; 77:1024-1034. [DOI: 10.1007/s00284-020-01896-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/18/2020] [Indexed: 10/25/2022]
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Vijayakumar K, Ramanathan T. Musa acuminata and its bioactive metabolite 5-Hydroxymethylfurfural mitigates quorum sensing (las and rhl) mediated biofilm and virulence production of nosocomial pathogen Pseudomonas aeruginosa in vitro. JOURNAL OF ETHNOPHARMACOLOGY 2020; 246:112242. [PMID: 31533077 DOI: 10.1016/j.jep.2019.112242] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 09/14/2019] [Accepted: 09/14/2019] [Indexed: 05/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Musa acuminata, a tropical plant belongs to the family Musaceae. The fruit peels of this plant have been well documented for their therapeutic value in Asia and Africa. It has also been previously reported for numerous biological applications such as antimicrobial, antioxidant, itching, psoriasis and anti-diarrheal activities. Moreover, M. acuminata peels have been well known for its anti-healing and antiseptic properties and most commonly used for healing wounds and heat burns in South Asian and African traditional medicines. AIM OF THE STUDY To evaluate the QS-mediated antibiofilm and antivirulence potential of M. acuminata, and its bioactive metabolites 5-Hydroxymethylfurfural (5HMF) against Pseudomonas aeruginosa. MATERIALS AND METHODS The M. acuminata peel methanol extract (MAM) was evaluated for its antibiofilm potential against P. aeruginosa with increasing concentration. Besides, biofilm related phenomenon's such as total biofilm proteins, microcolony formation exopolysaccharides (EPS) and cell surface hydrophobicity (CSH) productions were also examined to support the antibiofilm potential of MAM. Further, MAM was evaluated for its antivirulence efficacy against P. aeruginosa by assessing the protease, LasA protease, LasB elastase, pyocyanin, alginate and rhamnolipid productions at 400 μg ml-1 concentration. Transcriptional analysis of QS regulated virulence genes expression level was also done by real-time PCR analysis. Then, the MAM was subjected to column chromatography for further fractions and the bioactive compounds present in MAM were identified by gas chromatograph-mass spectrometry analysis. Further, the major compounds such as 5-hydroxymethylfurfural, vaccenic acid and pentanoic acid identified from active fraction of MAM were evaluated for their antibiofilm and antivirulence potential against P. aeruginosa. RESULTS MAM significantly inhibited the biofilm formation in P. aeruginosa at 400 μg ml-1 concentration which also inhibited the production of biofilm proteins, biofilm adherence, EPS and CSH productions to the level of 79%, 82% and 77% respectively. Further, the antivirulence potential was confirmed through numerous virulence inhibition assays. The MAM at 400 μg ml-1 concentration inhibited the QS-mediated virulence production such as protease, LasA protease, LasB elastase, pyocyanin, alginate and rhamnolipid productions to the level of 77%, 75%, 68%, 80%, 78% and 69% respectively. Moreover, the results of qPCR analysis confirmed the downregulation of QS regulated virulence genes expression upon treatment with MAM. The chromatographic analysis revealed the presence of 5-Hydroxymethylfurfural (5HMF), vaccenic acid and pentanoic acid in MAM and the potential bioactive compounds with antibiofilm and antivirulence was identified as 5-hydroxymethylfurfural, without exerting any growth inhibition in P. aeruginosa. CONCLUSION This study investigated the ideal antibiofilm and antivirulence potential of MAM and its bioactive compound 5HMF, and confirms the ethnopharmacological value of these peels against P. aeruginosa infections.
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Affiliation(s)
- Karuppiah Vijayakumar
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, 608 502, Tamil Nadu, India.
| | - Thirunanasambandham Ramanathan
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, 608 502, Tamil Nadu, India
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Farisa Banu S, Thamotharan S, Gowrishankar S, Karutha Pandian S, Nithyanand P. Marine bacterial DNase curtails virulence and disrupts biofilms of Candida albicans and non -albicans Candida species. BIOFOULING 2019; 35:975-985. [PMID: 31779493 DOI: 10.1080/08927014.2019.1680650] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 10/07/2019] [Indexed: 06/10/2023]
Abstract
Candida is one of the most prevalent fungal pathogens in clinical settings which form antibiotic-resistant biofilms on biomedical devices. Hence, there is a need for non-antimicrobial alternatives to combat these infections. The present study investigates the anti-biofilm effect of marine bacterial DNase by targeting the eDNA present in the biofilms of Candida spp. A strain of Vibrio alginolyticus (AMSII) which showed enhanced DNase activity was isolated from marine sediment. Treatment of young and mature Candida biofilms with purified marine bacterial DNase (MBD) caused a 60-80% reduction in biofilm biomass, similar to treatment with DNase I from Bovine pancreas. Scanning electron microscopy showed that MBD significantly reduced the formation of biofilms on urinary catheters and more importantly prevented the virulent yeast to hyphae dimorphic switch in C. albicans. The present study identified a potential non-antibiotic alternative therapy to eradicate Candida biofilms and can be used to develop enzyme fabricated antifouling indwelling medical devices.
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Affiliation(s)
- Sanaulla Farisa Banu
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, India
| | - Subbiah Thamotharan
- Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, India
| | | | | | - Paramasivam Nithyanand
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, India
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Gutiérrez‐Barranquero JA, Reen FJ, Parages ML, McCarthy R, Dobson ADW, O'Gara F. Disruption of N-acyl-homoserine lactone-specific signalling and virulence in clinical pathogens by marine sponge bacteria. Microb Biotechnol 2019; 12:1049-1063. [PMID: 29105344 PMCID: PMC6680641 DOI: 10.1111/1751-7915.12867] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/31/2017] [Indexed: 12/02/2022] Open
Abstract
In recent years, the marine environment has been the subject of increasing attention from biotechnological and pharmaceutical industries. A combination of unique physicochemical properties and spatial niche-specific substrates, in wide-ranging and extreme habitats, underscores the potential of the marine environment to deliver on functionally novel bioactivities. One such area of ongoing research is the discovery of compounds that interfere with the cell-cell signalling process called quorum sensing (QS). Described as the next generation of antimicrobials, these compounds can target virulence and persistence of clinically relevant pathogens, independent of any growth-limiting effects. Marine sponges are a rich source of microbial diversity, with dynamic populations in a symbiotic relationship. In this study, we have harnessed the QS inhibition (QSI) potential of marine sponge microbiota and through culture-based discovery have uncovered small molecule signal mimics that neutralize virulence phenotypes in clinical pathogens. This study describes for the first time a marine sponge Psychrobacter sp. isolate B98C22 that blocks QS signalling, while also reporting dual QS/QSI activity in the Pseudoalteromonas sp. J10 and ParacoccusJM45. Isolation of novel QSI activities has significant potential for future therapeutic development, of particular relevance in the light of the pending perfect storm of antibiotic resistance meeting antibiotic drug discovery decline.
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Affiliation(s)
- José A. Gutiérrez‐Barranquero
- BIOMERIT Research CentreSchool of MicrobiologyUniversity College CorkNational University of IrelandCorkIreland
- Present address:
Instituto de Hortofruticultura Subtropical y Mediterránea La MayoraDepartamento de MicrobiologíaFacultad de CienciasUniversidad de Málaga29071MálagaSpain
| | - F. Jerry Reen
- BIOMERIT Research CentreSchool of MicrobiologyUniversity College CorkNational University of IrelandCorkIreland
| | - María L. Parages
- BIOMERIT Research CentreSchool of MicrobiologyUniversity College CorkNational University of IrelandCorkIreland
- Present address:
Departamento de EcologíaFacultad de CienciasUniversidad de Málaga29071MálagaSpain
| | - Ronan McCarthy
- BIOMERIT Research CentreSchool of MicrobiologyUniversity College CorkNational University of IrelandCorkIreland
| | - Alan D. W. Dobson
- School of MicrobiologyUniversity College CorkNational University of IrelandCorkIreland
| | - Fergal O'Gara
- BIOMERIT Research CentreSchool of MicrobiologyUniversity College CorkNational University of IrelandCorkIreland
- Human Microbiome ProgrammeSchool of Biomedical SciencesCurtin Health Innovation Research InstituteCurtin UniversityPerthWAAustralia
- Curtin Health Innovation Research Institute (CHIRI)Curtin UniversityPerthWAAustralia
- School of Biomedical SciencesFaculty of Health SciencesCurtin UniversityPerthWAAustralia
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Pelyuntha W, Chaiyasut C, Kantachote D, Sirilun S. Cell-free supernatants from cultures of lactic acid bacteria isolated from fermented grape as biocontrol against Salmonella Typhi and Salmonella Typhimurium virulence via autoinducer-2 and biofilm interference. PeerJ 2019; 7:e7555. [PMID: 31523511 PMCID: PMC6715067 DOI: 10.7717/peerj.7555] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 07/25/2019] [Indexed: 12/16/2022] Open
Abstract
Background Salmonella Typhi and Salmonella Typhimurium are the causative pathogens of salmonellosis, and they are mostly found in animal source foods (ASF). The inappropriate use of antibiotics enhances the possibility for the emergence of antibiotic resistance in pathogens and antibiotic residue in ASF. One promising alternative to antibiotics in animal farming is the use of lactic acid bacteria (LAB). Methods The present study was carried out the cells and/or the cell-free culture supernatants (CFCS) from beneficial LAB against S. Typhi and S. Typhimurium. The antibacterial mechanisms of LAB-CFCS as biocontrol agents against both Salmonella serovars were investigated through the analysis of anti-salmonella growth activity, biofilm inhibition and quorum quenching activity. Results Among 146 LAB strains isolated from 110 fermented food samples, the 2 strong inhibitory effect strains (WM33 and WM36) from fermented grapes against both Salmonella serovars were selected. Out of the selected strains, WM36 was the most effective inhibitor, which indicated S. Typhi by showing 95.68% biofilm inhibition at 20% biofilm inhibition concentration (BIC) and reduced 99.84% of AI-2 signaling interference. The WM33 was the best to control S. Typhimurium by producing 66.46% biofilm inhibition at only 15% BIC and 99.99% AI-2 signaling a reduction. The 16S rDNA was amplified by a polymerase chain reaction (PCR). The selected isolates were identified as Weissella viridescens WM33 and Weissella confusa WM36 based on nucleotide homology and phylogenetic analysis. Conclusion The metabolic extracts from Weissella spp. inhibit Salmonella serovars with the potential to be used as biocontrol agents to improve microbiological safety in the production of ASF.
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Affiliation(s)
- Wattana Pelyuntha
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Chaiyavat Chaiyasut
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Duangporn Kantachote
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
| | - Sasithorn Sirilun
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
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Sharma D, Choudhary M, Vashistt J, Shrivastava R, Bisht GS. Cationic antimicrobial peptide and its poly-N-substituted glycine congener: Antibacterial and antibiofilm potential against A. baumannii. Biochem Biophys Res Commun 2019; 518:472-478. [PMID: 31443965 DOI: 10.1016/j.bbrc.2019.08.062] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 08/10/2019] [Indexed: 01/02/2023]
Abstract
Acinetobacter baumannii is one of the clinically important nosocomial pathogen that has become resistant to most of the conventional antimicrobials. Biofilms formed by A. baumannii are difficult to eradicate, thereby highlighting the need for new therapeutic options to treat biofilm associated infections. Antimicrobial peptides have recently emerged as new alternatives to conventional antibiotics, but peptides often suffer with drawbacks such as poor proteolytic stability and high cost of production. To tackle these limitations, mimetics based on antimicrobial peptides are usually designed and synthesized. In this study we have designed and synthesized a peptoid based on a minimum amphipathic template of a twelve residue cationic peptide. Antimicrobial evaluation of peptide and peptoid was carried out against biofilm producing A. baumannii strains. Further, proteolytic stability study of these compounds was carried out in human serum and morphological alterations caused by them on A. baumannii were visualized by SEM analysis. In addition, these compounds were found to be non toxic to human erythrocytes at their minimum inhibitory concentrations against A. baumannii strains. Overall results obtained in this study suggest that these compounds might be potential antimicrobial agents against biofilm forming A. baumannii and it may be postulated that their mode of action on A. baumannii is disruption of bacterial cell membrane.
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Affiliation(s)
- Deepika Sharma
- Department of Pharmacy, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, India
| | - Monika Choudhary
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, 173234, India
| | - Jitendraa Vashistt
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, 173234, India
| | - Rahul Shrivastava
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, 173234, India
| | - Gopal Singh Bisht
- Department of Pharmacy, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, India; Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, 173234, India.
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Sowndarya J, Farisa Banu S, Madhura G, Yuvalakshmi P, Rubini D, Bandeira Junior G, Baldisserotto B, Vadivel V, Nithyanand P. Agro food by-products and essential oil constituents curtail virulence and biofilm of Vibrio harveyi. Microb Pathog 2019; 135:103633. [PMID: 31326562 DOI: 10.1016/j.micpath.2019.103633] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 07/17/2019] [Accepted: 07/17/2019] [Indexed: 02/02/2023]
Abstract
Vibrio harveyi causes severe loss to the aquaculture industry due to its virulence, which is mediated by Quorum sensing (QS) and biofilm formation. In the current study, we have explored the anti-virulent properties and biofilm disruption ability of luteolin (extracted from coconut shell) and linalool against this important aquaculture pathogen. HPLC analysis of the methanolic extract of coconut shells revealed a single major peak which matched to the standard luteolin which was further elucidated by NMR studies. Further, luteolin and linalool were screened for their ability to inhibit biofilms and various quorum sensing mediated virulence factors of V. harveyi. The Minimum Inhibitory Concentration (MIC) of the two compounds was determined and the sub-inhibitory concentrations of the compounds were able to inhibit biofilm formation. Both the compounds disrupted about 60-70% mature biofilms, which was also visually observed by light microscopy. Both linalool and luteolin exhibited a significant reduction in the production of EPS and alginate in the biofilms matrix of V. harveyi which was confirmed by Scanning Electron Microscopy (SEM). Both compounds inhibited the swarming and swimming motility, the crucial quorum sensing (QS) mediated virulence of V. harveyi. The present study shows the presence of valuable polyphenolic compound like luteolin in coconut shells that are discarded as a waste. From the present study we envisage that luteolin and linalool can serve as potent anti-virulent agents to combat QS mediated infections against aquaculture pathogens.
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Affiliation(s)
- Jothipandiyan Sowndarya
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Sanaulla Farisa Banu
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Gunasekaran Madhura
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Prabakaran Yuvalakshmi
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Durairajan Rubini
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Guerino Bandeira Junior
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Vellingiri Vadivel
- Chemical Biology Lab, School of Chemical and Biotechnology (SCBT/CARISM), SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India.
| | - Paramasivam Nithyanand
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India.
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Rubini D, Banu SF, Subramani P, Hari BNV, Gowrishankar S, Pandian SK, Wilson A, Nithyanand P. Extracted chitosan disrupts quorum sensing mediated virulence factors in Urinary tract infection causing pathogens. Pathog Dis 2019; 77:5364546. [PMID: 30801640 DOI: 10.1093/femspd/ftz009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 02/22/2019] [Indexed: 02/06/2023] Open
Abstract
Quorum sensing (QS) plays an important role during the aetiology of urinary tract infection (UTI), as several virulence factors are under the regulation of QS. Pseudomonas aeruginosa and Serratia marcescens, the primary causative agents of UTI, employ acyl homoserine lactone (AHL) as signal molecules to coordinate various virulence factors. In this present study, chitosan extracted from the marine crab Portunus sanguinolentus was screened for its ability to inhibit the QS-signaling molecules of P. aeruginosa (PA01) and few clinical isolates of P. aeruginosa and S. marcescens. The extracted chitosan on comparison with a commercial chitosan showed significant inhibition of several QS-dependent virulence factors in P. aeruginosa and S. marscenes. Furthermore, qPCR analysis was carried out to confirm the down-regulation of fimA, fimC and flhD genes involved in adhesion and pathogenesis of S. marcescens and lasI and rhlI genes that governs the P. aeruginosa quorum sensing system. Moreover, the chitosan when coated on a catheter was also able to disrupt the mature biofilms which was revealed by scanning electron microscopy. Collectively, the present study showcases the QS inhibitory property of extracted chitosan from crab shells which is being discarded as a recalcitrant biowaste.
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Affiliation(s)
- Durairajan Rubini
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613401,Tamil Nadu, India
| | - Sanaulla Farisa Banu
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613401,Tamil Nadu, India
| | - Prabha Subramani
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613401,Tamil Nadu, India
| | - B Narayanan Vedha Hari
- Department of Pharmacy, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Shanmugaraj Gowrishankar
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi - 630004, Tamil Nadu, India
| | | | - Aruni Wilson
- Division of Microbiology and Molecular Genetics, School of Medicine, 11021 Campus Street, Loma Linda, California 92350, USA
| | - Paramasivam Nithyanand
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613401,Tamil Nadu, India
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Supardy NA, Ibrahim D, Mat Nor SR, Noordin WNM. Bioactive Compounds of Pseudoalteromonas sp. IBRL PD4.8 Inhibit Growth of Fouling Bacteria and Attenuate Biofilms of Vibrio alginolyticus FB3. Pol J Microbiol 2019; 68:21-33. [PMID: 31050250 PMCID: PMC7256726 DOI: 10.21307/pjm-2019-003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/29/2018] [Indexed: 02/04/2023] Open
Abstract
Biofouling is a phenomenon that describes the fouling organisms attached to man-made surfaces immersed in water over a period of time. It has emerged as a chronic problem to the oceanic industries, especially the shipping and aquaculture fields. The metal-containing coatings that have been used for many years to prevent and destroy biofouling are damaging to the ocean and many organisms. Therefore, this calls for the critical need of natural product-based antifoulants as a substitute for its toxic counterparts. In this study, the antibacterial and antibiofilm activities of the bioactive compounds of Pseudoalteromonas sp. IBRL PD4.8 have been investigated against selected fouling bacteria. The crude extract has shown strong antibacterial activity against five fouling bacteria, with inhibition zones ranging from 9.8 to 13.7 mm and minimal inhibitory concentrations of 0.13 to 8.0 mg/ml. Meanwhile, the antibiofilm study has indicated that the extract has attenuated the initial and pre-formed biofilms of Vibrio alginolyticus FB3 by 45.37 ± 4.88% and 29.85 ± 2.56%, respectively. Moreover, micrographs from light and scanning electron microscope have revealed extensive structural damages on the treated biofilms. The active fraction was fractionated with chromatographic methods and liquid chromatography-mass spectroscopy analyses has further disclosed the presence of a polyunsaturated fatty acid 4,7,10,13-hexadecatetraenoic acid (C16H24O2). Therefore, this compound was suggested as a potential bioactive compound contributing to the antibacterial property. In conclusion, Pseudoalteromonas sp. IBRL PD4.8 is a promising source as a natural antifouling agent that can suppress the growth of five fouling bacteria and biofilms of V. alginolyticus FB3.
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Affiliation(s)
- Nor Afifah Supardy
- Industrial Biotechnology Research Laboratory (IBRL), School of Biological Sciences, Universiti Sains Malaysia , Penang , Malaysia
| | - Darah Ibrahim
- Industrial Biotechnology Research Laboratory (IBRL), School of Biological Sciences, Universiti Sains Malaysia , Penang , Malaysia
| | - Sharifah Radziah Mat Nor
- Industrial Biotechnology Research Laboratory (IBRL), School of Biological Sciences, Universiti Sains Malaysia , Penang , Malaysia
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Ramalingam V, Mahamuni D, Rajaram R. In vitro and in silico approaches of antibiofilm activity of 1-hydroxy-1-norresistomycin against human clinical pathogens. Microb Pathog 2019; 132:343-354. [PMID: 31100406 DOI: 10.1016/j.micpath.2019.05.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 05/06/2019] [Accepted: 05/13/2019] [Indexed: 02/07/2023]
Abstract
In the present study, an attempt has been made to explore the antibiofilm activity of bioactive compound 1-hydroxy-1-norresistomycin (HNM) derived from coral mucus associated actinomycete Streptomyces variabilis. Initially, different concentration of HNM inhibited the biofilm formation of human clinical pathogens Escherichia coli, Vibrio cholerae and Staphylococcus aureus was determined using crystal-violet staining assay. The light microscopic analysis showed that HNM reduced the biofilm formation and adherence of bacterial cells on the surface of coverslip. HNM also damages the 3D architecture with reduced thickness as well as cell aggregation of biofilm forming bacteria analysed by confocal laser scanning microscopy (CLSM). In addition, HNM also demonstrated the efficiency in inhibiting theoretical adhesion by altering the surface hydrophobicity that can potentially hamper cellular adhesion and prevent biofilm formation. Furthermore, the molecular docking showed the significant interaction between HNM and key biofilm forming proteins proved an excellent antibiofilm activity of HNM. Together, these results suggest that the HNM can serve as potential antibiofilm agent in controlling the infections of E. coli, V. cholerae and S. aureus.
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Affiliation(s)
- Vaikundamoorthy Ramalingam
- DNA Barcoding and Marine Genomics Laboratory, Department of Marine Science, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India; Department of Animal Science, Chonbuk National University, Jeonju, Republic of Korea
| | - Duraisamy Mahamuni
- Environmental Microbiology and Toxicology Laboratory, Department of Environmental Management, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
| | - Rajendran Rajaram
- DNA Barcoding and Marine Genomics Laboratory, Department of Marine Science, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India.
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40
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Zhao J, Li X, Hou X, Quan C, Chen M. Widespread Existence of Quorum Sensing Inhibitors in Marine Bacteria: Potential Drugs to Combat Pathogens with Novel Strategies. Mar Drugs 2019; 17:md17050275. [PMID: 31072008 PMCID: PMC6562741 DOI: 10.3390/md17050275] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 04/28/2019] [Accepted: 04/29/2019] [Indexed: 12/22/2022] Open
Abstract
Quorum sensing (QS) is a phenomenon of intercellular communication discovered mainly in bacteria. A QS system consisting of QS signal molecules and regulatory protein components could control physiological behaviors and virulence gene expression of bacterial pathogens. Therefore, QS inhibition could be a novel strategy to combat pathogens and related diseases. QS inhibitors (QSIs), mainly categorized into small chemical molecules and quorum quenching enzymes, could be extracted from diverse sources in marine environment and terrestrial environment. With the focus on the exploitation of marine resources in recent years, more and more QSIs from the marine environment have been investigated. In this article, we present a comprehensive review of QSIs from marine bacteria. Firstly, screening work of marine bacteria with potential QSIs was concluded and these marine bacteria were classified. Afterwards, two categories of marine bacteria-derived QSIs were summarized from the aspects of sources, structures, QS inhibition mechanisms, environmental tolerance, effects/applications, etc. Next, structural modification of natural small molecule QSIs for future drug development was discussed. Finally, potential applications of QSIs from marine bacteria in human healthcare, aquaculture, crop cultivation, etc. were elucidated, indicating promising and extensive application perspectives of QS disruption as a novel antimicrobial strategy.
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Affiliation(s)
- Jing Zhao
- Key Laboratory of Biotechnology and Bioresources Utilization (Dalian Minzu University), Ministry of Education, Dalian 116600, China.
- College of Life Science, Dalian Minzu University, Dalian 116600, China.
| | - Xinyun Li
- Key Laboratory of Biotechnology and Bioresources Utilization (Dalian Minzu University), Ministry of Education, Dalian 116600, China.
- College of Life Science, Dalian Minzu University, Dalian 116600, China.
| | - Xiyan Hou
- Key Laboratory of Biotechnology and Bioresources Utilization (Dalian Minzu University), Ministry of Education, Dalian 116600, China.
- College of Life Science, Dalian Minzu University, Dalian 116600, China.
| | - Chunshan Quan
- Key Laboratory of Biotechnology and Bioresources Utilization (Dalian Minzu University), Ministry of Education, Dalian 116600, China.
- College of Life Science, Dalian Minzu University, Dalian 116600, China.
| | - Ming Chen
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116600, China.
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Prakash A, Vadivel V, Rubini D, Nithyanand P. Antibacterial and antibiofilm activities of linalool nanoemulsions against Salmonella Typhimurium. FOOD BIOSCI 2019. [DOI: 10.1016/j.fbio.2019.01.018] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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42
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Saber H, Alwaleed EA, Ebnalwaled K, Sayed A, Salem W. Efficacy of silver nanoparticles mediated by Jania rubens and Sargassum dentifolium macroalgae; Characterization and biomedical applications. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.ejbas.2017.10.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hani Saber
- Botany Department, Faculty of Science, South Valley University, Qena 83523, Egypt
| | - Eman A. Alwaleed
- Botany Department, Faculty of Science, South Valley University, Qena 83523, Egypt
| | - K.A. Ebnalwaled
- Electronics & Nano Devices Laboratory, Physics Department, Faculty of Science, South Valley University, Qena 83523, Egypt
- Egypt Nanotechnology Center (EGNC), Cairo University Sheikh Zayed Campus, 12588 Giza, Egypt
| | - Asmaa Sayed
- Botany Department, Faculty of Science, South Valley University, Qena 83523, Egypt
| | - Wesam Salem
- Botany Department, Faculty of Science, South Valley University, Qena 83523, Egypt
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Actinobacteria-a promising natural source of anti-biofilm agents. Int Microbiol 2019; 22:403-409. [PMID: 30847714 DOI: 10.1007/s10123-019-00066-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 02/14/2019] [Accepted: 02/15/2019] [Indexed: 10/27/2022]
Abstract
A biofilm is a community of microorganisms attached to a surface and embedded in a matrix of extracellular polymeric substances. Biofilms confer resistance towards conventional antibiotic treatments; thus, there is an urgent need for newer and more effective antimicrobial agents that can act against these biofilms. Due to this situation, various studies have been done to investigate the anti-biofilm effects of natural products including bioactive compounds extracted from microorganisms such as Actinobacteria. This review provides an insight into the anti-biofilm potential of Actinobacteria against various pathogenic bacteria, which hopefully provides useful information, guidance, and improvements for future antimicrobial studies. Nevertheless, further research on the anti-biofilm mechanisms and compound modifications to produce more potent anti-biofilm effects are required.
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Lou Z, Letsididi KS, Yu F, Pei Z, Wang H, Letsididi R. Inhibitive Effect of Eugenol and Its Nanoemulsion on Quorum Sensing-Mediated Virulence Factors and Biofilm Formation by Pseudomonas aeruginosa. J Food Prot 2019; 82:379-389. [PMID: 30785306 DOI: 10.4315/0362-028x.jfp-18-196] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The aim of the present study was to evaluate the quorum sensing (QS) inhibition potential of eugenol and eugenol nanoemulsion against QS-dependent virulence factor production and gene expression, as well as biofilm formation in Pseudomonas aeruginosa. In the current study, eugenol nanoemulsion at a sub-MIC of 0.2 mg/mL specifically inhibited about 50% of the QS-mediated violacein production in Chromobacterium violaceum, as well as the production of N-(3-oxododecanoyl)-l-homoserine lactone (3-oxo-C12-HSL) and C4-HSL N-acyl homoserine lactone signal molecules, pyocyanin, and swarming motility in P. aeruginosa. The inhibitive effect of eugenol and its nanoemulsion on the expression of the QS synthase genes was concentration dependent, displaying 65 and 52% expression level for lasI, respectively, and 61 and 45% expression level for rhlI, respectively, at a concentration of 0.2 mg/mL. In addition, the inhibitive effect of eugenol and its nanoemulsion on the expression of the rhlA gene responsible for the production of rhamnolipid was also concentration dependent, displaying 65 and 51% expression level for the rhlA gene, respectively, at a concentration of 0.2 mg/mL. Eugenol and its nanoemulsion also displayed 36 and 63% respective inhibition of biofilm formation by P. aeruginosa at the 0.2 mg/mL concentration. Therefore, the nanoemulsion could be used as a novel QS-based antibacterial and antibiofilm agent for the control of harmful bacteria.
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Affiliation(s)
- Zaixiang Lou
- 1 State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China.,2 Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi 214100, Jiangsu, People's Republic of China
| | - Kekgabile S Letsididi
- 1 State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China.,2 Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi 214100, Jiangsu, People's Republic of China
| | - Fuhao Yu
- 1 State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China.,2 Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi 214100, Jiangsu, People's Republic of China
| | - Zejun Pei
- 1 State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China.,2 Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi 214100, Jiangsu, People's Republic of China
| | - Hongxin Wang
- 1 State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China
| | - Rebaone Letsididi
- 1 State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China
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Javid MA, Abbas G, Waqas MY, Basit MA, Asif M, Akhtar MS, Masood S, Saleem MU, Qamar SH, Kiani FA. Evaluation of Comparative Effect of Feed Additive of Allium Sativum and Zingeber Officinale on Bird Growth and Histomorphometric Characteristics of Small Intestine in Broilers. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2019. [DOI: 10.1590/1806-9061-2019-0993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- MA Javid
- Bahauddin Zakariya University, Pakistan
| | - G Abbas
- Riphah College of Veterinary Sciences, Pakistan
| | - MY Waqas
- Bahauddin Zakariya University, Pakistan
| | - MA Basit
- Bahauddin Zakariya University, Pakistan
| | - M Asif
- University of Veterinary and Animal Sciences, Pakistan
| | - MS Akhtar
- Bahauddin Zakariya University, Pakistan
| | - S Masood
- University of Veterinary and Animal Sciences, Pakistan
| | - MU Saleem
- Bahauddin Zakariya University, Pakistan
| | - SH Qamar
- Sichuan Agricultural University, China
| | - FA Kiani
- Bahauddin Zakariya University, Pakistan
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Exploring the antivirulent and sea food preservation efficacy of essential oil combined with DNase on Vibrio parahaemolyticus. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.04.070] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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47
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Letsididi KS, Lou Z, Letsididi R, Mohammed K, Maguy BL. Antimicrobial and antibiofilm effects of trans -cinnamic acid nanoemulsion and its potential application on lettuce. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.04.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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48
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Devi KR, Srinivasan S, Ravi AV. Inhibition of quorum sensing-mediated virulence in Serratia marcescens by Bacillus subtilis R-18. Microb Pathog 2018; 120:166-175. [DOI: 10.1016/j.micpath.2018.04.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 04/12/2018] [Accepted: 04/12/2018] [Indexed: 10/17/2022]
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49
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Marine Invertebrates: Underexplored Sources of Bacteria Producing Biologically Active Molecules. DIVERSITY-BASEL 2018. [DOI: 10.3390/d10030052] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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50
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Rubini D, Banu SF, Nisha P, Murugan R, Thamotharan S, Percino MJ, Subramani P, Nithyanand P. Essential oils from unexplored aromatic plants quench biofilm formation and virulence of Methicillin resistant Staphylococcus aureus. Microb Pathog 2018; 122:162-173. [PMID: 29920307 DOI: 10.1016/j.micpath.2018.06.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 06/15/2018] [Accepted: 06/15/2018] [Indexed: 12/31/2022]
Abstract
In the current study we have evaluated the antibiofilm and antivirulent properties of unexplored essential oils (EOs) obtained from Pogostemon heyneanus and Cinnamomum tamala against Methicillin Resistant Staphylococcus aureus (MRSA) strains. The EOs from both the aromatic plants was screened for their ability to prevent biofilm formation and to disrupt preformed biofilms. The efficacy of both the EOs to disrupt the preformed biofilms of various MRSA strains was determined by Confocal Laser Scanning Microscopy (CLSM) and Scanning Electron Microscopy (SEM).The EOs were further able to reduce the Extracellular polymeric substance (EPS) and slime synthesis the two factors of the biofilm assemblage. The EOs was also found to be effective in reducing virulence factors like staphyloxanthin and hemolysin. In silico docking studies were performed for the major components of essential oils and dehydroxysqualene synthase of MRSA which is responsible for the synthesis of staphyloxanthin. The results suggest that (E)-nerolidol showed better binding affinity towards the enzyme. Other compounds have similar binding strengths with the enzyme. Furthermore, the synergistic effect EOs along with the commercially available DNaseI and Marine Bacterial DNase (MBD) showed that the synergistic effect had enhanced biofilm disruption ability. The results show that EOs from P. heyneanus and C. tamala has potential antivirulent and biofilm inhibitory properties against clinical and drug resistant S. aureus strains. The present study highlights the importance of bioprospecting plant based natural products as an alternative for antibiotics owing to the emergence of multi-drug resistant strains.
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Affiliation(s)
- Durairajan Rubini
- Biofilm Biology Laboratory, Anusandhan Kendra II, School of Chemical and Biotechnology, SASTRA University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India
| | - Sanaulla Farisa Banu
- Biofilm Biology Laboratory, Anusandhan Kendra II, School of Chemical and Biotechnology, SASTRA University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India
| | - Prakash Nisha
- Biofilm Biology Laboratory, Anusandhan Kendra II, School of Chemical and Biotechnology, SASTRA University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India
| | - Ramar Murugan
- School of Chemical and Biotechnology, SASTRA University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India
| | - Subbiah Thamotharan
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India
| | - María Judith Percino
- Laboratorio de Polímeros, Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Complejo de Ciencias, ICUAP, Edif. 103H, 22 Sur y San Claudio, Puebla, Puebla, C.P. 72570, Mexico
| | - Prabha Subramani
- Biofilm Biology Laboratory, Anusandhan Kendra II, School of Chemical and Biotechnology, SASTRA University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India
| | - Paramasivam Nithyanand
- Biofilm Biology Laboratory, Anusandhan Kendra II, School of Chemical and Biotechnology, SASTRA University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India; Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India.
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