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Di Napoli M, Castagliuolo G, Badalamenti N, Maresca V, Basile A, Bruno M, Varcamonti M, Zanfardino A. Antimicrobial, Antibiofilm, and Antioxidant Properties of Essential Oil of Foeniculum vulgare Mill. Leaves. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11243573. [PMID: 36559685 PMCID: PMC9783700 DOI: 10.3390/plants11243573] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 05/13/2023]
Abstract
Foeniculum vulgare (Apiaceae) is an aromatic fennel with important practices in medicinal and traditional fields, used in the treatment of digestive complications, and gastrointestinal and respiratory disorders. Its leaves and stems, tender and fresh, are used in the production of pasta dressing and main courses, while its seeds, with a strong smell of anise, are excellent flavoring for baked goods, meat dishes, fish, and alcoholic beverages. The aim of this work is concerning the extraction of essential oil (EO) from the leaves of F. vulgare subsp. vulgare var. vulgare, investigating antimicrobial, antibiofilm, and antioxidant efficacy. In particular, GC-MS analysis showed how the chemical composition of EO was influenced by the massive presence of monoterpene hydrocarbons (α-pinene 33.75%) and phenylpropanoids (estragole 25.06%). F. vulgare subsp. vulgare var. vulgare EO shows excellent antimicrobial activity against both Gram-positive and Gram-negative strains. This EO can inhibit biofilm formation at very low concentrations and has a good ability to scavenge oxygen radicals in vitro. F. vulgare subsp. vulgare var. vulgare EO also has an increased activity of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) enzymes and decreased ROS levels in zymosan opsonized PMNs (OZ).
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Affiliation(s)
- Michela Di Napoli
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Giusy Castagliuolo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Natale Badalamenti
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy
| | - Viviana Maresca
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Adriana Basile
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Maurizio Bruno
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy
| | - Mario Varcamonti
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Anna Zanfardino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
- Correspondence:
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Niño-Padilla EI, Velazquez C, Garibay-Escobar A. Mycobacterial biofilms as players in human infections: a review. BIOFOULING 2021; 37:410-432. [PMID: 34024206 DOI: 10.1080/08927014.2021.1925886] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 04/18/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
The role of biofilms in pathogenicity and treatment strategies is often neglected in mycobacterial infections. In recent years, the emergence of nontuberculous mycobacterial infections has necessitated the development of novel prophylactic strategies and elucidation of the mechanisms underlying the establishment of chronic infections. More importantly, the question arises whether members of the Mycobacterium tuberculosis complex can form biofilms and contribute to latent tuberculosis and drug resistance because of the long-lasting and recalcitrant nature of its infections. This review discusses some of the molecular mechanisms by which biofilms could play a role in infection or pathological events in humans.
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Affiliation(s)
| | - Carlos Velazquez
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora, México
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora, México
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Samanta S, Biswas P, Banerjee A, Bose A, Siddiqui N, Nambi S, Saini DK, Visweswariah SS. A universal stress protein in Mycobacterium smegmatis sequesters the cAMP-regulated lysine acyltransferase and is essential for biofilm formation. J Biol Chem 2020; 295:1500-1516. [PMID: 31882539 PMCID: PMC7008380 DOI: 10.1074/jbc.ra119.011373] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 12/19/2019] [Indexed: 01/08/2023] Open
Abstract
Universal stress proteins (USPs) are present in many bacteria, and their expression is enhanced under various environmental stresses. We have previously identified a USP in Mycobacterium smegmatis that is a product of the msmeg_4207 gene and is a substrate for a cAMP-regulated protein lysine acyltransferase (KATms; MSMEG_5458). Here, we explored the role of this USP (USP4207) in M. smegmatis and found that its gene is present in an operon that also contains genes predicted to encode a putative tripartite tricarboxylate transporter (TTT). Transcription of the TTT-usp4207 operon was induced in the presence of citrate and tartrate, perhaps by the activity of a divergent histidine kinase-response regulator gene pair. A usp4207-deleted strain had rough colony morphology and reduced biofilm formation compared with the WT strain; however, both normal colony morphology and biofilm formation were restored in a Δusp4207Δkatms strain. We identified several proteins whose acetylation was lost in the Δkatms strain, and whose transcript levels increased in M. smegmatis biofilms along with that of USP4207, suggesting that USP4207 insulates KATms from its other substrates in the cell. We propose that USP4207 sequesters KATms from diverse substrates whose activities are down-regulated by acylation but are required for biofilm formation, thus providing a defined role for this USP in mycobacterial physiology and stress responses.
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Affiliation(s)
- Sintu Samanta
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Priyanka Biswas
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Arka Banerjee
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Avipsa Bose
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Nida Siddiqui
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Subhalaxmi Nambi
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Deepak Kumar Saini
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Sandhya S Visweswariah
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, Karnataka 560012, India.
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Circular pellicles formed by Pseudomonas alkylphenolica KL28 are a sophisticated architecture principally designed by matrix substance. J Microbiol 2018; 56:790-797. [PMID: 30353464 DOI: 10.1007/s12275-018-8252-7] [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: 05/08/2018] [Revised: 07/23/2018] [Accepted: 07/26/2018] [Indexed: 10/28/2022]
Abstract
The colonization of liquid surfaces as floating biofilms or pellicles is a bacterial adaptation to optimally occupy the airliquid (A-L) niche. In aerobic heterotrophs, pellicle formation is beneficial for the utilization of O2 and nonpolar organic compounds. Pseudomonas alkylphenolica KL28, an alkylphenol degrader, forms flat circular pellicles that are 0.3-0.5 mm in diameter. In this study, we first monitored the pellicle developmental patterns of multicellular organization from the initial settlement stage. The pellicles developed by clonal growth and mutants for flagella and pilus formation established normal pellicles. In contrast, the mutants of an epm gene cluster for biosynthesis of alginate-like polymer were incompetent in cell alignment for initial two-dimensional (2D) pellicle growth, suggesting the role of the Epm polymer as a structural scaffold for pellicle biofilms. Microscopic observation revealed that the initial 2D growth transited to multilayers by an accumulated self-produced extracellular polymeric substance that may exert a constraint force. Electron microscopy and confocal laser scanning microscopy revealed that the fully matured pellicle structures were densly packed with matrix-encased cells displaying distinct arrangements. The cells on the surface of the pellicle were relatively flat, and those inside were longitudinally cross-packed. The extracellular polysaccharide stained by Congo red was denser on the pellicle rim and a thin film was observed in the open spaces, indicative of its role in pellicle flotation. Our results demonstrate that P. alkylphenolica KL28 coordinately dictates the cell arrangements of pellicle biofilms by the controlled growth of constituent cells that accumulate extracellular polymeric substances.
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Svobodová K, Petráčková D, Kozická B, Halada P, Novotný Č. Mutual interactions of Pleurotus ostreatus with bacteria of activated sludge in solid-bed bioreactors. World J Microbiol Biotechnol 2016; 32:94. [DOI: 10.1007/s11274-016-2050-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 03/12/2016] [Indexed: 11/24/2022]
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Amine Ben Mlouka M, Cousseau T, Di Martino P. Application of fluorescently labelled lectins for the study of polysaccharides in biofilms with a focus on biofouling of nanofiltration membranes. AIMS MOLECULAR SCIENCE 2016. [DOI: 10.3934/molsci.2016.3.338] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Khemiri A, Jouenne T, Cosette P. Proteomics dedicated to biofilmology: What have we learned from a decade of research? Med Microbiol Immunol 2015; 205:1-19. [PMID: 26068406 DOI: 10.1007/s00430-015-0423-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 06/03/2015] [Indexed: 12/31/2022]
Abstract
Advances in proteomics techniques over the past decade, closely integrated with genomic and physicochemical approach, have played a great role in developing knowledge of the biofilm lifestyle of bacteria. Despite bacterial proteome versatility, many studies have demonstrated the ability of proteomics approaches to elucidating the biofilm phenotype. Though these investigations have been largely used for biofilm studies in the last decades, they represent, however, a very low percentage of proteomics works performed up to now. Such approaches have offered new targets for combating microbial biofilms by providing a comprehensive quantitative and qualitative overview of their protein cell content. Herein, we summarized the state of the art in knowledge about biofilm physiology after one decade of proteomic analysis. In a second part, we highlighted missing research tracks for the next decade, emphasizing the emergence of posttranslational modifications in proteomic studies stemming from recent advances in mass spectrometry-based proteomics.
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Affiliation(s)
- Arbia Khemiri
- CNRS, UMR 6270, Laboratory "Polymères, Biopolymères, Surfaces", 76820, Mont-Saint-Aignan, France.
- University of Normandy, UR, Mont-Saint-Aignan, France.
- PISSARO Proteomic Facility, IRIB, 76820, Mont-Saint-Aignan, France.
| | - Thierry Jouenne
- CNRS, UMR 6270, Laboratory "Polymères, Biopolymères, Surfaces", 76820, Mont-Saint-Aignan, France
- University of Normandy, UR, Mont-Saint-Aignan, France
- PISSARO Proteomic Facility, IRIB, 76820, Mont-Saint-Aignan, France
| | - Pascal Cosette
- CNRS, UMR 6270, Laboratory "Polymères, Biopolymères, Surfaces", 76820, Mont-Saint-Aignan, France
- University of Normandy, UR, Mont-Saint-Aignan, France
- PISSARO Proteomic Facility, IRIB, 76820, Mont-Saint-Aignan, France
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