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Bernacchi A, Semenzato G, di Mascolo M, Amata S, Bechini A, Berti F, Calonico C, Catania V, Emiliani G, Esposito A, Greco C, Mocali S, Mucci N, Padula A, Piccionello AP, Nasanbat B, Davaakhuu G, Bazarragchaa M, Riga F, Augugliaro C, Puglia AM, Zaccaroni M, Renato F. Antibacterial activity of Arthrobacter strains isolated from Great Gobi A Strictly Protected Area, Mongolia. AIMS Microbiol 2024; 10:161-186. [PMID: 38525036 PMCID: PMC10955175 DOI: 10.3934/microbiol.2024009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/01/2024] [Accepted: 02/22/2024] [Indexed: 03/26/2024] Open
Abstract
Desert soil hosts many microorganisms, whose activities are essential from an ecological viewpoint. Moreover, they are of great anthropic interest. The knowledge of extreme environments microbiomes may be beneficial for agriculture, technology, and human health. In this study, 11 Arthrobacter strains from topsoil samples collected from the Great Gobi A Strictly Protected Area in the Gobi Desert, were characterized by a combination of different techniques. The phylogenetic analysis, performed using their 16S rDNA sequences and the most similar Arthrobacter sequences found in databases, revealed that most of them were close to A. crystallopoietes, while others joined a sister group to the clade formed by A. humicola, A. pascens, and A. oryzae. The resistance of each strain to different antibiotics, heavy-metals, and NaCl was also tested as well as the inhibitory potential against human pathogens (i.e., Burkholderia ssp., Klebsiella pneumoniae, Pseudomonas aeruginosa, and Staphylococcus ssp.) via cross-streaking, to check the production of metabolites with antimicrobial activity. Data obtained revealed that all strains were resistant to heavy metals and were able to strongly interfere with the growth of many of the human pathogens tested. The volatile organic compounds (VOCs) profile of the 11 Arthrobacter strains was also analyzed. A total of 16 different metabolites were found, some of which were already known for having an inhibitory action against different Gram-positive and Gram-negative bacteria. Isolate MS-3A13, producing the highest quantity of VOCs, is the most efficient against Burkholderia cepacia complex (Bcc), K. pneumoniae, and coagulase-negative Staphylococci (CoNS) strains. This work highlights the importance of understanding microbial populations' phenotypical characteristics and dynamics in extreme environments to uncover the antimicrobial potential of new species and strains.
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Affiliation(s)
- Alberto Bernacchi
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Giulia Semenzato
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Manuel di Mascolo
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Sara Amata
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies-STEBICEF, University of Palermo, Viale delle Scienze Ed.17, 90128, Palermo, Italy
| | - Angela Bechini
- Department of Health Sciences, University of Florence, viale G.B. Morgagni, 48, 50134 Firenze, Italy
| | - Fabiola Berti
- Department of Health Sciences, University of Florence, viale G.B. Morgagni, 48, 50134 Firenze, Italy
| | - Carmela Calonico
- Department of Health Sciences, University of Florence, viale G.B. Morgagni, 48, 50134 Firenze, Italy
| | - Valentina Catania
- Department of Earth and Sea Science (DiSTeM), University of Palermo, Viale delle Scienze Blg. 16, Palermo, 90128, Italy
| | - Giovanni Emiliani
- Institute for Sustainable Plant Protection (IPSP)—National Research Council (CNR), Via Madonna del Piano 10, Sesto Fiorentino 50019 Florence, Italy
| | - Antonia Esposito
- Council for Agricultural and Economics Research (CREA) – Agriculture and Environment, Via di Lanciola 12/A, Cascine del Riccio, 50125, Florence, Italy
| | - Claudia Greco
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, via Ca' Fornacetta, 9, 40064 Ozzano dell'Emilia Bologna, Italy
| | - Stefano Mocali
- Council for Agricultural and Economics Research (CREA) – Agriculture and Environment, Via di Lanciola 12/A, Cascine del Riccio, 50125, Florence, Italy
| | - Nadia Mucci
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, via Ca' Fornacetta, 9, 40064 Ozzano dell'Emilia Bologna, Italy
| | - Anna Padula
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, via Ca' Fornacetta, 9, 40064 Ozzano dell'Emilia Bologna, Italy
| | - Antonio Palumbo Piccionello
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies-STEBICEF, University of Palermo, Viale delle Scienze Ed.17, 90128, Palermo, Italy
| | - Battogtokh Nasanbat
- Institute of Biology, Mongolian Academy of Sciences, Peace Avenue-54B, Bayanzurkh District, Ulaanbaatar-13330, Mongolia
| | - Gantulga Davaakhuu
- Institute of Biology, Mongolian Academy of Sciences, Peace Avenue-54B, Bayanzurkh District, Ulaanbaatar-13330, Mongolia
| | | | - Francesco Riga
- Italian Institute for Envioronmental Protection and Research, via Vitalino Brancati, 48, 00144, Roma, Italy
| | - Claudio Augugliaro
- Wildlife Initiative, Bayangol, 6th Khoroo, Micro District 10, Ulaanbaatar, 210349, Mongolia
| | | | - Marco Zaccaroni
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Fani Renato
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
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Zhao D, Yang Y, Tham YJ, Zou S. Emission of marine volatile organic compounds (VOCs) by phytoplankton- a review. MARINE ENVIRONMENTAL RESEARCH 2023; 191:106177. [PMID: 37741052 DOI: 10.1016/j.marenvres.2023.106177] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 08/30/2023] [Accepted: 09/11/2023] [Indexed: 09/25/2023]
Abstract
Oceans cover over 71% of the Earth's surface and play crucial roles in regulating the global climate. In the marine boundary layer, the levels of volatile organic compounds (VOCs) have been shown to have positive relations with the marine algal biomass, indicating that the marine biological activities can be an important biogenic VOCs (BVOCs) source. The emitted BVOCs will enhance the formation of secondary organic aerosols, and perturb the radiative forcing, which ultimately affects the climate. To date, knowledge on the emission processes (i.e., synthesis processes and emission rates) of BVOCs from marine phytoplankton is still lacking compared to the more well-known BVOCs released from terrestrial plants. In this review, we focus on the BVOCs emissions from the marine phytoplankton. Based on the available literature from field and laboratory studies, we listed the types of BVOCs being emitted by different marine phytoplankton species, summarized the diversity of BVOCs related to phytoplankton taxonomy and physiology and abiotic factors affecting their emissions in various marine environments, and discussed the biosynthesis and ecological function of important marine VOCs such as DMS, terpenoids and VHCs from phytoplankton. Finally, we highlighted the existing gaps in the current knowledge and the needs of future study for better understanding the physiological and ecological roles of BVOCs emission from marine phytoplankton.
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Affiliation(s)
- Danna Zhao
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, China
| | - Ying Yang
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, 519000, China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Zhuhai, 519082, China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai, 519082, China.
| | - Yee Jun Tham
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Zhuhai, 519082, China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai, 519082, China
| | - Shichun Zou
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, 519000, China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Zhuhai, 519082, China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai, 519082, China
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Bacteria Associated with Benthic Invertebrates from Extreme Marine Environments: Promising but Underexplored Sources of Biotechnologically Relevant Molecules. Mar Drugs 2022; 20:md20100617. [DOI: 10.3390/md20100617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/25/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
Microbe–invertebrate associations, commonly occurring in nature, play a fundamental role in the life of symbionts, even in hostile habitats, assuming a key importance for both ecological and evolutionary studies and relevance in biotechnology. Extreme environments have emerged as a new frontier in natural product chemistry in the search for novel chemotypes of microbial origin with significant biological activities. However, to date, the main focus has been microbes from sediment and seawater, whereas those associated with biota have received significantly less attention. This review has been therefore conceived to summarize the main information on invertebrate–bacteria associations that are established in extreme marine environments. After a brief overview of currently known extreme marine environments and their main characteristics, a report on the associations between extremophilic microorganisms and macrobenthic organisms in such hostile habitats is provided. The second part of the review deals with biotechnologically relevant bioactive molecules involved in establishing and maintaining symbiotic associations.
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Endophytic Bacteria and Essential Oil from Origanum vulgare ssp. vulgare Share Some VOCs with an Antibacterial Activity. Microorganisms 2022; 10:microorganisms10071424. [PMID: 35889143 PMCID: PMC9320186 DOI: 10.3390/microorganisms10071424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/02/2022] [Accepted: 07/12/2022] [Indexed: 02/01/2023] Open
Abstract
Medicinal aromatic plants’ essential oils (EOs) are mixtures of volatile compounds showing antimicrobial activity, which could be exploited to face the emerging problem of multi-drug resistance. Their chemical composition can depend on the interactions between the plant and its endophytic microbiota, which is known to synthesize volatile organic compounds (VOCs). However, it is still not clear whether those volatile metabolites can contribute to the composition of the aroma profile of plants’ EOs. The aims of this study were to characterize medicinal plant O. vulgare ssp. vulgare bacterial endophyte VOCs, evaluating their ability to antagonize the growth of opportunistic human pathogens belonging to the Burkholderia cepacia complex (Bcc) and compare them with O. vulgare EO composition. Many of the tested endophytic strains showed (i) a bactericidal and/or bacteriostatic activity against most of Bcc strains and (ii) the production of VOCs with widely recognized antimicrobial properties, such as dimethyl disulfide, dimethyl trisulfide, and monoterpenes. Moreover, these monoterpenes were also detected in the EOs extracted from the same O. vulgare plants from which endophytes were isolated. Obtained results suggest that endophytes could also play a role in the antibacterial properties of O. vulgare ssp. vulgare and, potentially, in determining its aromatic composition.
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Antarctic Porifera homogenates as a source of enzymes and antibacterial substances: first results. Polar Biol 2022. [DOI: 10.1007/s00300-022-03042-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractMarine Porifera (sponges) are known to produce several bioactive metabolites having a biotechnological potential, mostly derived from their bacterial symbionts; however, current knowledge on the production of metabolites such as enzymes and antibacterial molecules in sponges living in Antarctic environments is not fully exhaustive and needs further deepened investigation. The interest in discovering the broad spectrum of natural products potentially derived from species adapted to colonize extreme environments stimulates the research toward Antarctic sponge bioprospection. In this study, whole homogenates of Antarctic Demospongiae, belonging to five different species [Haliclona (Rhizoniera) sp., Haliclona (Rhizoniera) dancoi, Microxina sarai, Dendrilla antarctica, and Mycale acerata] were collected from Terra Nova Bay (Ross Sea) and examined for presence and activity of enzymes, including lysozyme, and antibacterial substances. Enzyme activities (leucine aminopeptidase, beta-glucosidase, and alkaline phosphatase) were measured using fluorogenic substrates; lysozyme content was determined on plates containing lyophilized Micrococcus lysodeikticus cell walls as a substrate. Homogenates were screened in microtiter plates for their antibacterial activity against Antarctic bacterial isolates, and the absorbance reduction was measured with a microplate reader. All homogenates exhibited proteolytic, glycolytic, and phosphatasic activities, lysozyme and antibacterial activities at near “in situ” temperature (5 °C), with some differences among the examined species. Results confirmed that Antarctic sponge homogenates are interesting sources of different bioactive substances, likely produced from associated bacterial symbionts, and that could have great potential to be used in medicine or industrial applications.
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Minerdi D, Maggini V, Fani R. Volatile organic compounds: from figurants to leading actors in fungal symbiosis. FEMS Microbiol Ecol 2021; 97:6261439. [PMID: 33983430 DOI: 10.1093/femsec/fiab067] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 04/29/2021] [Indexed: 12/13/2022] Open
Abstract
Symbiosis involving two (or more) prokaryotic and/or eukaryotic partners is extremely widespread in nature, and it has performed, and is still performing, a key role in the evolution of several biological systems. The interaction between symbiotic partners is based on the emission and perception of a plethora of molecules, including volatile organic compounds (VOCs), synthesized by both prokaryotic and eukaryotic (micro)organisms. VOCs acquire increasing importance since they spread above and below ground and act as infochemicals regulating a very complex network. In this work we review what is known about the VOCs synthesized by fungi prior to and during the interaction(s) with their partners (either prokaryotic or eukaryotic) and their possible role(s) in establishing and maintaining the symbiosis. Lastly, we also describe the potential applications of fungal VOCs from different biotechnological perspectives, including medicinal, pharmaceutical and agronomical.
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Affiliation(s)
- Daniela Minerdi
- Department of Department of Agricultural, Forestry, and Food Sciences, University of Turin, Largo Paolo Braccini 2, Grugliasco (TO), Italy
| | - Valentina Maggini
- Department of Biology, Laboratory of Microbial and Molecular Evolution, University of Florence, Via Madonna del Piano 6, Sesto F.no (FI), Italy
| | - Renato Fani
- Department of Biology, Laboratory of Microbial and Molecular Evolution, University of Florence, Via Madonna del Piano 6, Sesto F.no (FI), Italy
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Tedesco P, Palma Esposito F, Masino A, Vitale GA, Tortorella E, Poli A, Nicolaus B, van Zyl LJ, Trindade M, de Pascale D. Isolation and Characterization of Strain Exiguobacterium sp. KRL4, a Producer of Bioactive Secondary Metabolites from a Tibetan Glacier. Microorganisms 2021; 9:microorganisms9050890. [PMID: 33919419 PMCID: PMC8143284 DOI: 10.3390/microorganisms9050890] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/16/2021] [Accepted: 04/16/2021] [Indexed: 11/16/2022] Open
Abstract
Extremophilic microorganisms represent a unique source of novel natural products. Among them, cold adapted bacteria and particularly alpine microorganisms are still underexplored. Here, we describe the isolation and characterization of a novel Gram-positive, aerobic rod-shaped alpine bacterium (KRL4), isolated from sediments from the Karuola glacier in Tibet, China. Complete phenotypic analysis was performed revealing the great adaptability of the strain to a wide range of temperatures (5-40 °C), pHs (5.5-8.5), and salinities (0-15% w/v NaCl). Genome sequencing identified KRL4 as a member of the placeholder genus Exiguobacterium_A and annotation revealed that only half of the protein-encoding genes (1522 of 3079) could be assigned a putative function. An analysis of the secondary metabolite clusters revealed the presence of two uncharacterized phytoene synthase containing pathways and a novel siderophore pathway. Biological assays confirmed that the strain produces molecules with antioxidant and siderophore activities. Furthermore, intracellular extracts showed nematocidal activity towards C. elegans, suggesting that strain KRL4 is a source of anthelmintic compounds.
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Affiliation(s)
- Pietro Tedesco
- Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino, 80131 Naples, Italy; (P.T.); (F.P.E.); (A.M.); (G.A.V.); (E.T.)
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80122 Naples, Italy
| | - Fortunato Palma Esposito
- Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino, 80131 Naples, Italy; (P.T.); (F.P.E.); (A.M.); (G.A.V.); (E.T.)
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80122 Naples, Italy
| | - Antonio Masino
- Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino, 80131 Naples, Italy; (P.T.); (F.P.E.); (A.M.); (G.A.V.); (E.T.)
- Department of Biology, University of Naples Federico II, Via Cinthia, 80126 Naples, Italy
| | - Giovanni Andrea Vitale
- Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino, 80131 Naples, Italy; (P.T.); (F.P.E.); (A.M.); (G.A.V.); (E.T.)
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80122 Naples, Italy
| | - Emiliana Tortorella
- Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino, 80131 Naples, Italy; (P.T.); (F.P.E.); (A.M.); (G.A.V.); (E.T.)
| | - Annarita Poli
- Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, 80078 Naples, Italy; (A.P.); (B.N.)
| | - Barbara Nicolaus
- Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, 80078 Naples, Italy; (A.P.); (B.N.)
| | - Leonardo Joaquim van Zyl
- Institute for Microbial Biotechnology and Metagenomics (IMBM), University of the Western Cape, Bellville, 7535 Cape Town, South Africa; (L.J.v.Z.); (M.T.)
| | - Marla Trindade
- Institute for Microbial Biotechnology and Metagenomics (IMBM), University of the Western Cape, Bellville, 7535 Cape Town, South Africa; (L.J.v.Z.); (M.T.)
| | - Donatella de Pascale
- Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino, 80131 Naples, Italy; (P.T.); (F.P.E.); (A.M.); (G.A.V.); (E.T.)
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80122 Naples, Italy
- Correspondence:
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Garrido A, Atencio LA, Bethancourt R, Bethancourt A, Guzmán H, Gutiérrez M, Durant-Archibold AA. Antibacterial Activity of Volatile Organic Compounds Produced by the Octocoral-Associated Bacteria Bacillus sp. BO53 and Pseudoalteromonas sp. GA327. Antibiotics (Basel) 2020; 9:antibiotics9120923. [PMID: 33353062 PMCID: PMC7766662 DOI: 10.3390/antibiotics9120923] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/10/2020] [Accepted: 12/16/2020] [Indexed: 12/24/2022] Open
Abstract
The present research aimed to evaluate the antibacterial activity of volatile organic compounds (VOCs) produced by octocoral-associated bacteria Bacillus sp. BO53 and Pseudoalteromonas sp. GA327. The volatilome bioactivity of both bacteria species was evaluated against human pathogenic antibiotic-resistant bacteria, methicillin-resistant Staphylococcus aureus, Acinetobacter baumanni, and Pseudomonas aeruginosa. In this regard, the in vitro tests showed that Bacillus sp. BO53 VOCs inhibited the growth of P. aeruginosa and reduced the growth of S. aureus and A. baumanni. Furthermore, Pseudoalteromonas sp. GA327 strongly inhibited the growth of A. baumanni, and P. aeruginosa. VOCs were analyzed by headspace solid-phase microextraction (HS-SPME) joined to gas chromatography-mass spectrometry (GC-MS) methodology. Nineteen VOCs were identified, where 5-acetyl-2-methylpyridine, 2-butanone, and 2-nonanone were the major compounds identified on Bacillus sp. BO53 VOCs; while 1-pentanol, 2-butanone, and butyl formate were the primary volatile compounds detected in Pseudoalteromonas sp. GA327. We proposed that the observed bioactivity is mainly due to the efficient inhibitory biochemical mechanisms of alcohols and ketones upon antibiotic-resistant bacteria. This is the first report which describes the antibacterial activity of VOCs emitted by octocoral-associated bacteria.
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Affiliation(s)
- Anette Garrido
- Center for Biodiversity and Drug Discovery, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panama City 0843-01103, Panama; (A.G.); (L.A.A.)
| | - Librada A. Atencio
- Center for Biodiversity and Drug Discovery, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panama City 0843-01103, Panama; (A.G.); (L.A.A.)
| | - Rita Bethancourt
- Department of Microbiology and Parasitology, College of Natural, Exact Sciences, and Technology, Universidad de Panama, Panama City 0824-03366, Panama; (R.B.); (A.B.)
| | - Ariadna Bethancourt
- Department of Microbiology and Parasitology, College of Natural, Exact Sciences, and Technology, Universidad de Panama, Panama City 0824-03366, Panama; (R.B.); (A.B.)
| | - Héctor Guzmán
- Smithsonian Tropical Research Institute, Panama City 0843-03092, Panama;
| | - Marcelino Gutiérrez
- Center for Biodiversity and Drug Discovery, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panama City 0843-01103, Panama; (A.G.); (L.A.A.)
- Correspondence: (M.G.); (A.A.D.-A.)
| | - Armando A. Durant-Archibold
- Center for Biodiversity and Drug Discovery, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panama City 0843-01103, Panama; (A.G.); (L.A.A.)
- Department of Biochemistry, College of Natural, Exact Sciences, and Technology, University of Panama, Panama City 0824-03366, Panama
- Correspondence: (M.G.); (A.A.D.-A.)
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Rizzo C, Lo Giudice A. The Variety and Inscrutability of Polar Environments as a Resource of Biotechnologically Relevant Molecules. Microorganisms 2020; 8:microorganisms8091422. [PMID: 32947905 PMCID: PMC7564310 DOI: 10.3390/microorganisms8091422] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 11/16/2022] Open
Abstract
The application of an ever-increasing number of methodological approaches and tools is positively contributing to the development and yield of bioprospecting procedures. In this context, cold-adapted bacteria from polar environments are becoming more and more intriguing as valuable sources of novel biomolecules, with peculiar properties to be exploited in a number of biotechnological fields. This review aims at highlighting the biotechnological potentialities of bacteria from Arctic and Antarctic habitats, both biotic and abiotic. In addition to cold-enzymes, which have been intensively analysed, relevance is given to recent advances in the search for less investigated biomolecules, such as biosurfactants, exopolysaccharides and antibiotics.
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Affiliation(s)
- Carmen Rizzo
- Stazione Zoologica Anton Dohrn, Department Marine Biotechnology, National Institute of Biology, Villa Pace, Contrada Porticatello 29, 98167 Messina, Italy
- Correspondence:
| | - Angelina Lo Giudice
- Institute of Polar Sciences, National Research Council (CNR-ISP), Spianata San Raineri 86, 98122 Messina, Italy;
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Papale M, Rizzo C, Fani R, Bertolino M, Costa G, Paytuví-Gallart A, Schiaparelli S, Michaud L, Azzaro M, Lo Giudice A. Exploring the Diversity and Metabolic Profiles of Bacterial Communities Associated With Antarctic Sponges (Terra Nova Bay, Ross Sea). Front Ecol Evol 2020. [DOI: 10.3389/fevo.2020.00268] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Marine Terpenoids from Polar Latitudes and Their Potential Applications in Biotechnology. Mar Drugs 2020; 18:md18080401. [PMID: 32751369 PMCID: PMC7459527 DOI: 10.3390/md18080401] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 01/03/2023] Open
Abstract
Polar marine biota have adapted to thrive under one of the ocean’s most inhospitable scenarios, where extremes of temperature, light photoperiod and ice disturbance, along with ecological interactions, have selected species with a unique suite of secondary metabolites. Organisms of Arctic and Antarctic oceans are prolific sources of natural products, exhibiting wide structural diversity and remarkable bioactivities for human applications. Chemical skeletons belonging to terpene families are the most commonly found compounds, whereas cytotoxic antimicrobial properties, the capacity to prevent infections, are the most widely reported activities from these environments. This review firstly summarizes the regulations on access and benefit sharing requirements for research in polar environments. Then it provides an overview of the natural product arsenal from Antarctic and Arctic marine organisms that displays promising uses for fighting human disease. Microbes, such as bacteria and fungi, and macroorganisms, such as sponges, macroalgae, ascidians, corals, bryozoans, echinoderms and mollusks, are the main focus of this review. The biological origin, the structure of terpenes and terpenoids, derivatives and their biotechnological potential are described. This survey aims to highlight the chemical diversity of marine polar life and the versatility of this group of biomolecules, in an effort to encourage further research in drug discovery.
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12
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Savoca S, Lo Giudice A, Papale M, Mangano S, Caruso C, Spanò N, Michaud L, Rizzo C. Antarctic sponges from the Terra Nova Bay (Ross Sea) host a diversified bacterial community. Sci Rep 2019; 9:16135. [PMID: 31695084 PMCID: PMC6834628 DOI: 10.1038/s41598-019-52491-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 10/04/2019] [Indexed: 11/23/2022] Open
Abstract
Sponges represent important habitats for a community of associated (micro)organisms. Even if sponges dominate vast areas of the Antarctic shelves, few investigations have been performed on Antarctic sponge-associated bacteria. Using a culture-dependent approach, the composition of the bacterial communities associated with 14 Antarctic sponge species from different sites within the Terra Nova Bay (Ross Sea) area was analyzed. Overall, isolates were mainly affiliated to Gammaproteobacteria, followed by Actinobacteria and CF group of Bacteroidetes, being the genera Pseudoalteromonas, Arthrobacter and Gillisia predominant, respectively. Alphaproteobacteria and Firmicutes were less represented. Cluster analyses highlighted similarities/differences among the sponge-associated bacterial communities, also in relation to the sampling site. The gammaproteobacterial Pseudoalteromonas sp. SER45, Psychrobacter sp. SER48, and Shewanella sp. SER50, and the actinobacterial Arthrobacter sp. SER44 phylotypes occurred in association with almost all the analyzed sponge species. However, except for SER50, these phylotypes were retrieved also in seawater, indicating that they may be transient within the sponge body. The differences encountered within the bacterial communities may depend on the different sites of origin, highlighting the importance of the habitat in structuring the composition of the associated bacterial assemblages. Our data support the hypothesis of specific ecological interactions between bacteria and Porifera.
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Affiliation(s)
- Serena Savoca
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Universitàdi Messina, Viale F. Stagno d'Alcontres 31, 98166, Messina, Italy
| | - Angelina Lo Giudice
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Universitàdi Messina, Viale F. Stagno d'Alcontres 31, 98166, Messina, Italy. .,Istituto di Scienze Polari, Consiglio Nazionale delle Ricerche (CNR-ISP), Spianata San Raineri 86, 98122, Messina, Italy.
| | - Maria Papale
- Istituto di Scienze Polari, Consiglio Nazionale delle Ricerche (CNR-ISP), Spianata San Raineri 86, 98122, Messina, Italy
| | - Santina Mangano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Universitàdi Messina, Viale F. Stagno d'Alcontres 31, 98166, Messina, Italy
| | - Consolazione Caruso
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Universitàdi Messina, Viale F. Stagno d'Alcontres 31, 98166, Messina, Italy
| | - Nunziacarla Spanò
- Dipartimento di Scienze Biomediche, Odontoiatriche e delle Immagini Morfologiche e Funzionali, A.O.U. Policlinico "G. Martino", Torre Biologica, Via Consolare Valeria, 98125, Messina, Italy
| | | | - Carmen Rizzo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Universitàdi Messina, Viale F. Stagno d'Alcontres 31, 98166, Messina, Italy
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13
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Artini M, Papa R, Vrenna G, Lauro C, Ricciardelli A, Casillo A, Corsaro MM, Tutino ML, Parrilli E, Selan L. Cold-adapted bacterial extracts as a source of anti-infective and antimicrobial compounds against Staphylococcus aureus. Future Microbiol 2019; 14:1369-1382. [PMID: 31596138 DOI: 10.2217/fmb-2019-0147] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim: The dramatic emergence of antibiotic resistance has directed the interest of research toward the discovery of novel antimicrobial molecules. In this context, cold-adapted marine bacteria living in polar regions represent an untapped reservoir of biodiversity endowed with an interesting chemical repertoire. The aim of this work was to identify new antimicrobials and/or antibiofilm molecules produced by cold-adapted bacteria. Materials & methods: Organic extracts obtained from polar marine bacteria were tested against Staphylococcus aureus. Most promising samples were subjected to suitable purification strategies. Results: Results obtained led to the identification of a novel lipopeptide able to effectively inhibit the biofilm formation of S. aureus. Conclusion: New lipopeptide may be potentially useful in a wide variety of biotechnological and medical applications.
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Affiliation(s)
- Marco Artini
- Department of Public Health & Infectious Diseases, Sapienza University, 00185 Rome, Italy
| | - Rosanna Papa
- Department of Public Health & Infectious Diseases, Sapienza University, 00185 Rome, Italy
| | - Gianluca Vrenna
- Department of Public Health & Infectious Diseases, Sapienza University, 00185 Rome, Italy
| | - Concetta Lauro
- Department of Chemical Sciences, Federico II University, 80126 Naples, Italy
| | | | - Angela Casillo
- Department of Chemical Sciences, Federico II University, 80126 Naples, Italy
| | - Maria M Corsaro
- Department of Chemical Sciences, Federico II University, 80126 Naples, Italy
| | - Maria L Tutino
- Department of Chemical Sciences, Federico II University, 80126 Naples, Italy
| | | | - Laura Selan
- Department of Public Health & Infectious Diseases, Sapienza University, 00185 Rome, Italy
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14
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Exploring the Bacterial Communities of Infernaccio Waterfalls: A Phenotypic and Molecular Characterization of Acinetobacter and Pseudomonas Strains Living in a Red Epilithic Biofilm. DIVERSITY 2019. [DOI: 10.3390/d11100175] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Acquarossa river (Viterbo, Italy) was the site of a prospering Etruscan civilization thanks to metallurgical activity around 625–550 B.C. This caused the spread of heavy metals throughout the area. Rocks along the river probably act as a filter for these elements and they are covered by two different biofilms (epilithons). They differ for both color and bacterial composition. One is red and is enriched with Pseudomonas strains, while the other one is black and Acinetobacter is the most represented genus. Along the river lay the Infernaccio waterfalls, whose surrounding rocks are covered only by the red epilithon. The bacterial composition of this biofilm was analyzed through high throughput sequencing and compared to those ones of red and black epilithons of Acquarossa river. Moreover, cultivable bacteria were isolated and their phenotype (i.e., resistance against antibiotics and heavy metals) was studied. As previously observed in the case of Acquarossa river, characterization of bacterial composition of the Infernaccio red epilithon revealed that the two most represented genera were Acinetobacter and Pseudomonas. Nonetheless, these strains differed from those isolated from Acquarossa, as revealed by RAPD analysis. This work, besides increasing knowledge about the ecological properties of this site, allowed to isolate new bacterial strains, which could potentially be exploited for biotechnological applications, because of their resistance against environmental pollutants.
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15
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Chiellini C, Miceli E, Bacci G, Fagorzi C, Coppini E, Fibbi D, Bianconi G, Mengoni A, Canganella F, Fani R. Spatial structuring of bacterial communities in epilithic biofilms in the Acquarossa river (Italy). FEMS Microbiol Ecol 2019; 94:5094556. [PMID: 30202963 DOI: 10.1093/femsec/fiy181] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 09/07/2018] [Indexed: 12/21/2022] Open
Abstract
Epilithic river biofilms characterize the rock surfaces along the Acquarossa river (Viterbo, Italy); they are in part red and in part black colored, maintaining a well-defined borderline. This peculiarity has raised questions about the biotic and abiotic phenomena that might avoid the mixing of the two biofilms. In this study, the structuring of bacterial communities in black and red epilithic biofilm in the Acquarossa river has been investigated with both culture dependent and independent approaches. Data obtained highlighted a (very) different taxonomic composition of black and red epilithons bacterial communities, dominated by Acinetobacter sp. and iron-oxidizing bacteria, respectively. The chemical characterization of both river water and biofilms revealed a substantial heavy metals pollution of the environment; heavy metals were also differentially accumulated in red and black epilithons. Overall, our data revealed that the structuring of red and black epilithons might be affected mainly by the antagonistic interactions exhibited by bacterial genera dominating the two biofilms. These findings suggest that biotic factors might be responsible for the structuring of natural bacterial communities, suggesting that there is a selection of populations at very small scale, and that different populations might compete for different niches.
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Affiliation(s)
- Carolina Chiellini
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino (FI), Italy
| | - Elisangela Miceli
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino (FI), Italy
| | - Giovanni Bacci
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino (FI), Italy
| | - Camilla Fagorzi
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino (FI), Italy
| | - Ester Coppini
- G.I.D.A. S.p.A., Via di Baciacavallo 36, 59100 Prato (PO), Italy
| | - Donatella Fibbi
- G.I.D.A. S.p.A., Via di Baciacavallo 36, 59100 Prato (PO), Italy
| | - Giovanna Bianconi
- Department of Biological, Agrofood and Forestry Sciences, University of Tuscia, Via San Camillo de Lellis snc, I-01100, Viterbo, Italy
| | - Alessio Mengoni
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino (FI), Italy
| | - Francesco Canganella
- Department of Biological, Agrofood and Forestry Sciences, University of Tuscia, Via San Camillo de Lellis snc, I-01100, Viterbo, Italy
| | - Renato Fani
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino (FI), Italy
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16
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Veselova MA, Plyuta VA, Khmel IA. Volatile Compounds of Bacterial Origin: Structure, Biosynthesis, and Biological Activity. Microbiology (Reading) 2019. [DOI: 10.1134/s0026261719030160] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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17
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Parrilli E, Tedesco P, Fondi M, Tutino ML, Lo Giudice A, de Pascale D, Fani R. The art of adapting to extreme environments: The model system Pseudoalteromonas. Phys Life Rev 2019; 36:137-161. [PMID: 31072789 DOI: 10.1016/j.plrev.2019.04.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 04/02/2019] [Indexed: 01/10/2023]
Abstract
Extremophilic microbes have adapted to thrive in ecological niches characterized by harsh chemical/physical conditions such as, for example, very low/high temperature. Living organisms inhabiting these environments have developed peculiar mechanisms to cope with extreme conditions, in such a way that they mark the chemical-physical boundaries of life on Earth. Studying such mechanisms is stimulating from a basic research viewpoint and because of biotechnological applications. Pseudoalteromonas species are a group of marine gamma-proteobacteria frequently isolated from a range of extreme environments, including cold habitats and deep-sea sediments. Since deep-sea floors constitute almost 60% of the Earth's surface and cold temperatures represent the most common of the extreme conditions, the genus Pseudoalteromonas can be considered one of the most important model systems for studying microbial adaptation. Particularly, among all Pseudoalteromonas representatives, P. haloplanktis TAC125 has recently gained a central role. This bacterium was isolated from seawater sampled along the Antarctic ice-shell and is considered one of the model organisms of cold-adapted bacteria. It is capable of thriving in a wide temperature range and it has been suggested as an alternative host for the soluble overproduction of heterologous proteins, given its ability to rapidly multiply at low temperatures. In this review, we will present an overview of the recent advances in the characterization of Pseudoalteromonas strains and, more importantly, in the understanding of their evolutionary and chemical-physical strategies to face such a broad array of extreme conditions. A particular attention will be given to systems-biology approaches in the study of the above-mentioned topics, as genome-scale datasets (e.g. genomics, proteomics, phenomics) are beginning to expand for this group of organisms. In this context, a specific section dedicated to P. haloplanktis TAC125 will be presented to address the recent efforts in the elucidation of the metabolic rewiring of the organisms in its natural environment (Antarctica).
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Affiliation(s)
- Ermenegilda Parrilli
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario M. S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Pietro Tedesco
- LISBP, Université de Toulouse, CNRS, INRA, INSA, 31077 Toulouse, France
| | - Marco Fondi
- Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, ViaMadonna del Piano 6, 50019 Sesto Fiorentino, FI, Italy
| | - Maria Luisa Tutino
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario M. S. Angelo, Via Cintia, 80126 Napoli, Italy
| | | | - Donatella de Pascale
- Institute of Protein Biochemistry, CNR, Napoli, Italy, Stazione Zoologica "Anthon Dorn", Villa Comunale, I-80121 Napoli, Italy
| | - Renato Fani
- Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, ViaMadonna del Piano 6, 50019 Sesto Fiorentino, FI, Italy.
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18
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Ricciardelli A, Casillo A, Papa R, Monti DM, Imbimbo P, Vrenna G, Artini M, Selan L, Corsaro MM, Tutino ML, Parrilli E. Pentadecanal inspired molecules as new anti-biofilm agents against Staphylococcus epidermidis. BIOFOULING 2018; 34:1110-1120. [PMID: 30698031 DOI: 10.1080/08927014.2018.1544246] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 10/30/2018] [Accepted: 10/30/2018] [Indexed: 06/09/2023]
Abstract
Staphylococcus epidermidis, a harmless human skin colonizer, is a significant nosocomial pathogen in predisposed hosts because of its capability to form a biofilm on indwelling medical devices. In a recent paper, the purification and identification of the pentadecanal produced by the Antarctic bacterium Pseudoalteromonas haloplanktis TAC125, able to impair S. epidermidis biofilm formation, were reported. Here the authors report on the chemical synthesis of pentadecanal derivatives, their anti-biofilm activity on S. epidermidis, and their action in combination with antibiotics. The results clearly indicate that the pentadecanal derivatives were able to prevent, to a different extent, biofilm formation and that pentadecanoic acid positively modulated the antimicrobial activity of the vancomycin. The cytotoxicity of these new anti-biofilm molecules was tested on two different immortalized eukaryotic cell lines in view of their potential applications.
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Affiliation(s)
| | - Angela Casillo
- a Chemical Sciences , University of Naples "Federico II" , Naples , Italy
| | - Rosanna Papa
- b Department of Public Health and Infectious Diseases , Sapienza University , Rome , Italy
| | - Daria Maria Monti
- a Chemical Sciences , University of Naples "Federico II" , Naples , Italy
| | - Paola Imbimbo
- a Chemical Sciences , University of Naples "Federico II" , Naples , Italy
| | - Gianluca Vrenna
- b Department of Public Health and Infectious Diseases , Sapienza University , Rome , Italy
| | - Marco Artini
- b Department of Public Health and Infectious Diseases , Sapienza University , Rome , Italy
| | - Laura Selan
- b Department of Public Health and Infectious Diseases , Sapienza University , Rome , Italy
| | | | - Maria Luisa Tutino
- a Chemical Sciences , University of Naples "Federico II" , Naples , Italy
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19
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Núñez-Montero K, Barrientos L. Advances in Antarctic Research for Antimicrobial Discovery: A Comprehensive Narrative Review of Bacteria from Antarctic Environments as Potential Sources of Novel Antibiotic Compounds Against Human Pathogens and Microorganisms of Industrial Importance. Antibiotics (Basel) 2018; 7:E90. [PMID: 30347637 PMCID: PMC6316688 DOI: 10.3390/antibiotics7040090] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/05/2018] [Accepted: 10/04/2018] [Indexed: 12/16/2022] Open
Abstract
The recent emergence of antibiotic-resistant bacteria has become a critical public health problem. It is also a concern for industries, since multidrug-resistant microorganisms affect the production of many agricultural and food products of economic importance. Therefore, discovering new antibiotics is crucial for controlling pathogens in both clinical and industrial spheres. Most antibiotics have resulted from bioprospecting in natural environments. Today, however, the chances of making novel discoveries of bioactive molecules from various well-known sources have dramatically diminished. Consequently, unexplored and unique environments have become more likely avenues for discovering novel antimicrobial metabolites from bacteria. Due to their extreme polar environment, Antarctic bacteria in particular have been reported as a potential source for new antimicrobial compounds. We conducted a narrative review of the literature about findings relating to the production of antimicrobial compounds by Antarctic bacteria, showing how bacterial adaptation to extreme Antarctic conditions confers the ability to produce these compounds. We highlighted the diversity of antibiotic-producing Antarctic microorganisms, including the phyla Proteobacteria, Actinobacteria, Cyanobacteria, Firmicutes, and Bacteroidetes, which has led to the identification of new antibiotic molecules and supports the belief that research on Antarctic bacterial strains has important potential for biotechnology applications, while providing a better understanding of polar ecosystems.
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Affiliation(s)
- Kattia Núñez-Montero
- Laboratorio de Biología Molecular Aplicada, Centro de Excelencia en Medicina Traslacional, Universidad de La Frontera, Avenida Alemania 0458, 4810296 Temuco, Chile.
- Núcleo Científico y Tecnológico en Biorecursos (BIOREN), Universidad de La Frontera, Avenida Francisco Salazar 01145, 481123 Temuco, Chile.
- Centro de Investigación en Biotecnología, Escuela de Biología, Instituto Tecnológico de Costa Rica, 30101 Cartago, Costa Rica.
| | - Leticia Barrientos
- Laboratorio de Biología Molecular Aplicada, Centro de Excelencia en Medicina Traslacional, Universidad de La Frontera, Avenida Alemania 0458, 4810296 Temuco, Chile.
- Núcleo Científico y Tecnológico en Biorecursos (BIOREN), Universidad de La Frontera, Avenida Francisco Salazar 01145, 481123 Temuco, Chile.
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20
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Ghiglione C, Alvaro MC, Cecchetto M, Canese S, Downey R, Guzzi A, Mazzoli C, Piazza P, Rapp HT, Sarà A, Schiaparelli S. Porifera collection of the Italian National Antarctic Museum (MNA), with an updated checklist from Terra Nova Bay (Ross Sea). Zookeys 2018:137-156. [PMID: 30150878 PMCID: PMC6109648 DOI: 10.3897/zookeys.758.23485] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 04/20/2018] [Indexed: 12/02/2022] Open
Abstract
This new dataset presents occurrence data for Porifera collected in the Ross Sea, mainly in the Terra Nova Bay area, and curated at the Italian National Antarctic Museum (MNA, section of Genoa). Specimens were collected in 331 different sampling stations at depths ranging from 17 to 1,100 meters in the framework of 17 different Italian Antarctic expeditions funded by the Italian National Antarctic Research Program (PNRA). A total of 807 specimens, belonging to 144 morphospecies (i.e., 95 taxa identified at species level and 49 classified at least at the genus level) is included in the dataset. Nearly half (45%) of the species reported here correspond to species already known for Terra Nova Bay. Out of the remaining 55% previously unknown records, under a third (~29%) were classified at the species level, while over a quarter (~26%) were ascribed to the genus level only and these would require further study. All vouchers are permanently curated at the MNA and are available for study to the scientific community. A 3D model of an uncommon species from the Ross Sea, i.e. Tethyopsisbrondstedi (Burton, 1929), is also presented and will be made available for outreach purposes.
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Affiliation(s)
- Claudio Ghiglione
- Italian National Antarctic Museum (MNA), Section of Genoa, Italy Italian National Antarctic Museum Genoa Italy
| | - Maria Chiara Alvaro
- Italian National Antarctic Museum (MNA), Section of Genoa, Italy Italian National Antarctic Museum Genoa Italy.,Department of Earth, Environmental and Life Science (DISTAV), University of Genoa, Italy University of Genoa Genoa Italy
| | - Matteo Cecchetto
- Italian National Antarctic Museum (MNA), Section of Genoa, Italy Italian National Antarctic Museum Genoa Italy.,Department of Earth, Environmental and Life Science (DISTAV), University of Genoa, Italy University of Genoa Genoa Italy
| | - Simonepietro Canese
- Institute for Environmental Protection and Research, ISPRA, Milazzo, Italy Institute for Environmental Protection and Research Milazzo Italy
| | - Rachel Downey
- Australia National University, Fenner School of Environment and Society, Canberra, Australia Australia National University Canberra Australia
| | - Alice Guzzi
- Italian National Antarctic Museum (MNA), Section of Genoa, Italy Italian National Antarctic Museum Genoa Italy.,Department of Earth, Environmental and Life Science (DISTAV), University of Genoa, Italy University of Genoa Genoa Italy
| | - Claudio Mazzoli
- Department of Geosciences, University of Padova, Italy University of Padova Padova Italy
| | - Paola Piazza
- Italian National Antarctic Museum (MNA), Section of Genoa, Italy Italian National Antarctic Museum Genoa Italy.,Department of Physical, Earth and Environmental Sciences, University of Siena, Italy University of Siena Siena Italy
| | - Hans Tore Rapp
- Department of Biological Sciences and K.G. Jebsen Centre for Deep-Sea Research, University of Bergen, Norway University of Bergen Bergen Norway
| | - Antonio Sarà
- Studio Associato Gaia S.N.C., Via Brigata Liguria, Genoa, Italy Studio Associato Gaia S.N.C. Genoa Italy
| | - Stefano Schiaparelli
- Italian National Antarctic Museum (MNA), Section of Genoa, Italy Italian National Antarctic Museum Genoa Italy.,Department of Earth, Environmental and Life Science (DISTAV), University of Genoa, Italy University of Genoa Genoa Italy
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21
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Bacteria Associated with Marine Benthic Invertebrates from Polar Environments: Unexplored Frontiers for Biodiscovery? DIVERSITY-BASEL 2018. [DOI: 10.3390/d10030080] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The ecological function of bacteria-invertebrate interactions in Polar areas remains poorly understood, despite increasing evidence that microbial metabolites may play pivotal roles in host-associated chemical defense and in shaping the symbiotic community structure. The metabolic and physiological changes that these organisms undergo in response to adapting to extreme conditions result in the production of structurally and functionally novel biologically active molecules. Deepening our knowledge on the interactions between bacteria and their invertebrate host would be highly helpful in providing the rationale for why (e.g., competition or cooperative purpose) and which (whether secondary metabolites, enzymes, or proteins) bioactive compounds are produced. To date, cold-adapted bacteria associated with marine invertebrates from the Arctic and Antarctica have not been given the attention they deserve and the versatility of their natural products remains virtually unexplored, even if they could represent a new attractive frontier in the search for novel natural compounds. This review is aimed at showcasing the diversity of cold-adapted bacteria associated with benthic invertebrates from Polar marine areas, highlighting the yet unexplored treasure they represent for biodiscovery.
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22
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23
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Barra L, Barac P, König GM, Crüsemann M, Dickschat JS. Volatiles from the fungal microbiome of the marine sponge Callyspongia cf. flammea. Org Biomol Chem 2018; 15:7411-7421. [PMID: 28872169 DOI: 10.1039/c7ob01837a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The volatiles emitted by five fungal strains previously isolated from the marine sponge Callyspongia cf. flammea were captured with a closed-loop stripping apparatus (CLSA) and analyzed by GC-MS. Besides several widespread compounds, a series of metabolites with interesting bioactivities were found, including the quorum sensing inhibitor protoanemonin, the fungal phytotoxin 3,4-dimethylpentan-4-olide, and the insect attractant 1,2,4-trimethoxybenzene. In addition, the aromatic polyketides isotorquatone and chartabomone that are both known from Eucalyptus and a new O-desmethyl derivative were identified. The biosynthesis of isotorquatone was studied by feeding experiments with isotopically labeled precursors and its absolute configuration was determined by enantioselective synthesis of a reference compound. Bioactivity testings showed algicidal activity for some of the identified compounds, suggesting a potential ecological function in sponge defence.
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Affiliation(s)
- Lena Barra
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Straße 1, D-53121 Bonn, Germany.
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24
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Lamilla C, Braga D, Castro R, Guimarães C, V. A. de Castilho L, Freire DMG, Barrientos L. Streptomyces luridus So3.2 from Antarctic soil as a novel producer of compounds with bioemulsification potential. PLoS One 2018; 13:e0196054. [PMID: 29684071 PMCID: PMC5912782 DOI: 10.1371/journal.pone.0196054] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 04/05/2018] [Indexed: 11/18/2022] Open
Abstract
The present study aimed to identify novel microbial producers of bioemulsificant compounds from Antarctic soils. Fifty-nine microbial strains were isolated from five different locations at South Shetland Islands, Antarctica, and screened for biosurfactant production by β-hemolytic activity. Strain So 3.2 was determined as bioemulsifier-producer and identified by phenotypic and molecular characterization as Streptomyces luridus. Emulsification activity, oil displacement method and drop-collapsing test were performed to evaluate the biosurfactant activity with different oils and hydrocarbons using two different culture media (Luria Bertani and Bushnell Haas in the presence of different carbon sources: glucose, glycerol, olive oil and n-Hexadecane). Cell free supernatant of Bushnell Haas culture supplemented with n-Hexadecane showed the best results for all tests. Emulsification of hydrocarbons exceeded 60%, reaching up to 90% on oil with high API grade, while displacement tests ranged from 8 cm to 4 cm in diameter according the culture media and tested oils. Our results revealed that Streptomyces luridus So3.2 is able to produce bioemulsifiers capable of emulsifying hydrocarbons and oils, which could be used in different biotechnological applications, particularly for bioremediation of environments contaminated by oil leaks.
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Affiliation(s)
- Claudio Lamilla
- Laboratory of Applied Molecular Biology, Center of Excellence in Translational Medicine, Temuco, Chile
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Douglas Braga
- Laboratório de Biotecnologia Microbiana, Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, Centro de Tecnologia, Cidade Universitária, Rio de Janeiro RJ, Brasil
| | - Rui Castro
- Laboratório de Biotecnologia Microbiana, Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, Centro de Tecnologia, Cidade Universitária, Rio de Janeiro RJ, Brasil
| | - Carolina Guimarães
- Laboratório de Biotecnologia Microbiana, Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, Centro de Tecnologia, Cidade Universitária, Rio de Janeiro RJ, Brasil
| | - Livia V. A. de Castilho
- Laboratório de Biotecnologia Microbiana, Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, Centro de Tecnologia, Cidade Universitária, Rio de Janeiro RJ, Brasil
| | - Denise M. G. Freire
- Laboratório de Biotecnologia Microbiana, Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, Centro de Tecnologia, Cidade Universitária, Rio de Janeiro RJ, Brasil
- * E-mail: (LB); (DMGF)
| | - Leticia Barrientos
- Laboratory of Applied Molecular Biology, Center of Excellence in Translational Medicine, Temuco, Chile
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile
- * E-mail: (LB); (DMGF)
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Production and Biotechnological Potential of Extracellular Polymeric Substances from Sponge-Associated Antarctic Bacteria. Appl Environ Microbiol 2018; 84:AEM.01624-17. [PMID: 29180360 DOI: 10.1128/aem.01624-17] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 11/17/2017] [Indexed: 11/20/2022] Open
Abstract
Four sponge-associated Antarctic bacteria (i.e., Winogradskyella sp. strains CAL384 and CAL396, Colwellia sp. strain GW185, and Shewanella sp. strain CAL606) were selected for the highly mucous appearance of their colonies on agar plates. The production of extracellular polymeric substances (EPSs) was enhanced by a step-by-step approach, varying the carbon source, substrate and NaCl concentrations, temperature, and pH. The EPSs produced under optimal conditions were chemically characterized, resulting in a moderate carbohydrate content (range, 15 to 28%) and the presence of proteins (range, 3 to 24%) and uronic acids (range, 3.2 to 11.9%). Chemical hydrolysis of the carbohydrate portion revealed galactose, glucose, galactosamine, and mannose as the principal constituents. The potential biotechnological applications of the EPSs were also investigated. The high protein content in the EPSs from Winogradskyella sp. CAL384 was probably responsible for the excellent emulsifying activity toward tested hydrocarbons, with a stable emulsification index (E24) higher than those recorded for synthetic surfactants. All the EPSs tested in this work improved the freeze-thaw survival ratio of the isolates, suggesting that they may be exploited as cryoprotection agents. The addition of a sugar in the culture medium, by stimulating EPS production, also allowed isolates to grow in the presence of higher concentrations of mercury and cadmium. This finding was probably dependent on the presence of uronic acids and sulfate groups, which can act as ligands for cations, in the extracted EPSs.IMPORTANCE To date, biological matrices have never been employed for the investigation of EPS production by Antarctic psychrotolerant marine bacteria. The biotechnological potential of extracellular polymeric substances produced by Antarctic bacteria is very broad and comprises many advantages, due to their biodegradability, high selectivity, and specific action compared to synthetic molecules. Here, several interesting EPS properties have been highlighted, such as emulsifying activity, cryoprotection, biofilm formation, and heavy metal chelation, suggesting their potential applications in cosmetic, environmental, and food biotechnological fields as valid alternatives to the commercial polymers currently used.
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Pseudoalteromonas haloplanktis TAC125 produces 4-hydroxybenzoic acid that induces pyroptosis in human A459 lung adenocarcinoma cells. Sci Rep 2018; 8:1190. [PMID: 29352134 PMCID: PMC5775203 DOI: 10.1038/s41598-018-19536-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 12/18/2017] [Indexed: 11/08/2022] Open
Abstract
In order to exploit the rich reservoir of marine cold-adapted bacteria as a source of bioactive metabolites, ethyl acetate crude extracts of thirteen polar marine bacteria were tested for their antiproliferative activity on A549 lung epithelial cancer cells. The crude extract from Pseudoalteromonas haloplanktis TAC125 was the most active in inhibiting cell proliferation. Extensive bioassay-guided purification and mass spectrometric characterization allowed the identification of 4-hydroxybenzoic acid (4-HBA) as the molecule responsible for this bioactivity. We further demonstrate that 4-HBA inhibits A549 cancer cell proliferation with an IC50 value ≤ 1 μg ml-1, and that the effect is specific, since the other two HBA isomers (i.e. 2-HBA and 3-HBA) were unable to inhibit cell proliferation. The effect of 4-HBA is also selective since treatment of normal lung epithelial cells (WI-38) with 4-HBA did not affect cell viability. Finally, we show that 4-HBA is able to activate, at the gene and protein levels, a specific cell death signaling pathway named pyroptosis. Accordingly, the treatment of A549 cells with 4-HBA induces the transcription of (amongst others) caspase-1, IL1β, and IL18 encoding genes. Studies needed for the elucidation of mode of action of 4-HBA will be instrumental in depicting novel details of pyroptosis.
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Abstract
Constraint-based metabolic modelling (CBMM) consists in the use of computational methods and tools to perform genome-scale simulations and predict metabolic features at the whole cellular level. This approach is rapidly expanding in microbiology, as it combines reliable predictive abilities with conceptually and technically simple frameworks. Among the possible outcomes of CBMM, the capability to i) guide a focused planning of metabolic engineering experiments and ii) provide a system-level understanding of (single or community-level) microbial metabolic circuits also represent primary aims in present-day marine microbiology. In this work we briefly introduce the theoretical formulation behind CBMM and then review the most recent and effective case studies of CBMM of marine microbes and communities. Also, the emerging challenges and possibilities in the use of such methodologies in the context of marine microbiology/biotechnology are discussed. As the potential applications of CBMM have a very broad range, the topics presented in this review span over a large plethora of fields such as ecology, biotechnology and evolution.
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Affiliation(s)
- Marco Fondi
- Dep. of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino, Florence, Italy.
| | - Renato Fani
- Dep. of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino, Florence, Italy
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Mocali S, Chiellini C, Fabiani A, Decuzzi S, de Pascale D, Parrilli E, Tutino ML, Perrin E, Bosi E, Fondi M, Lo Giudice A, Fani R. Ecology of cold environments: new insights of bacterial metabolic adaptation through an integrated genomic-phenomic approach. Sci Rep 2017; 7:839. [PMID: 28404986 PMCID: PMC5429795 DOI: 10.1038/s41598-017-00876-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 03/01/2017] [Indexed: 12/26/2022] Open
Abstract
Cold environments dominate Earth's biosphere, hosting complex microbial communities with the ability to thrive at low temperatures. However, the underlying molecular mechanisms and the metabolic pathways involved in bacterial cold-adaptation mechanisms are still not fully understood. Herein, we assessed the metabolic features of the Antarctic bacterium Pseudoalteromonas haloplanktis TAC125 (PhTAC125), a model organism for cold-adaptation, at both 4 °C and 15 °C, by integrating genomic and phenomic (high-throughput phenotyping) data and comparing the obtained results to the taxonomically related Antarctic bacterium Pseudoalteromonas sp. TB41 (PspTB41). Although the genome size of PspTB41 is considerably larger than PhTAC125, the higher number of genes did not reflect any higher metabolic versatility at 4 °C as compared to PhTAC125. Remarkably, protein S-thiolation regulated by glutathione and glutathionylspermidine appeared to be a new possible mechanism for cold adaptation in PhTAC125. More in general, this study represents an example of how 'multi-omic' information might potentially contribute in filling the gap between genotypic and phenotypic features related to cold-adaptation mechanisms in bacteria.
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Affiliation(s)
- Stefano Mocali
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria - Centro di Ricerca per l'Agrobiologia e la Pedologia (CREA-ABP), via di Lanciola 12/A, 50125, Firenze, Italy.
| | - Carolina Chiellini
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria - Centro di Ricerca per l'Agrobiologia e la Pedologia (CREA-ABP), via di Lanciola 12/A, 50125, Firenze, Italy.,Department of Biology, LEMM, Laboratory of Microbial and Molecular Evolution Florence, University of Florence, I-50019, Sesto Fiorentino (FI), Italy
| | - Arturo Fabiani
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria - Centro di Ricerca per l'Agrobiologia e la Pedologia (CREA-ABP), via di Lanciola 12/A, 50125, Firenze, Italy
| | - Silvia Decuzzi
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria - Centro di Ricerca per l'Agrobiologia e la Pedologia (CREA-ABP), via di Lanciola 12/A, 50125, Firenze, Italy.,Department of Biology, LEMM, Laboratory of Microbial and Molecular Evolution Florence, University of Florence, I-50019, Sesto Fiorentino (FI), Italy
| | - Donatella de Pascale
- Institute of Protein Biochemistry, CNR, Via Pietro Castellino 111, 80131, Naples, Italy
| | - Ermenegilda Parrilli
- Department of Chemical Sciences, University of Naples 'Federico II', Complesso Universitario, Monte Sant'Angelo, Via Cinthia 4, 80126, Naples, Italy
| | - Maria Luisa Tutino
- Department of Chemical Sciences, University of Naples 'Federico II', Complesso Universitario, Monte Sant'Angelo, Via Cinthia 4, 80126, Naples, Italy
| | - Elena Perrin
- Department of Biology, LEMM, Laboratory of Microbial and Molecular Evolution Florence, University of Florence, I-50019, Sesto Fiorentino (FI), Italy
| | - Emanuele Bosi
- Department of Biology, LEMM, Laboratory of Microbial and Molecular Evolution Florence, University of Florence, I-50019, Sesto Fiorentino (FI), Italy
| | - Marco Fondi
- Department of Biology, LEMM, Laboratory of Microbial and Molecular Evolution Florence, University of Florence, I-50019, Sesto Fiorentino (FI), Italy
| | - Angelina Lo Giudice
- Institute for the Coastal Marine Environment, National Research Council (IAMC-CNR), Spianata San Raineri 86, 98122, Messina, Italy.,Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontrès 31, 98166, Messina, Italy
| | - Renato Fani
- Department of Biology, LEMM, Laboratory of Microbial and Molecular Evolution Florence, University of Florence, I-50019, Sesto Fiorentino (FI), Italy
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30
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Parrilli E, Papa R, Carillo S, Tilotta M, Casillo A, Sannino F, Cellini A, Artini M, Selan L, Corsaro MM, Tutino ML. Anti-biofilm activity of pseudoalteromonas haloplanktis tac125 against staphylococcus epidermidis biofilm: Evidence of a signal molecule involvement? Int J Immunopathol Pharmacol 2017; 28:104-13. [PMID: 25816412 DOI: 10.1177/0394632015572751] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Staphylococcus epidermidis is recognized as cause of biofilm-associated infections and interest in the development of new approaches for S. epidermidis biofilm treatment has increased. In a previous paper we reported that the supernatant of Antarctic bacterium Pseudoalteromonas haloplanktis TAC125 presents an anti-biofilm activity against S. epidermidis and preliminary physico-chemical characterization of the supernatant suggested that this activity is due to a polysaccharide. In this work we further investigated the chemical nature of the anti-biofilm P. haloplanktis TAC125 molecule. The production of the molecule was evaluated in different conditions, and reported data demonstrated that it is produced in all P. haloplanktis TAC125 biofilm growth stages, also in minimal medium and at different temperatures. By using a surface coating assay, the surfactant nature of the anti-biofilm compound was excluded. Moreover, a purification procedure was set up and the analysis of an enriched fraction demonstrated that the anti-biofilm activity is not due to a polysaccharide molecule but that it is due to small hydrophobic molecules that likely work as signal. The enriched fraction was also used to evaluate the effect on S. epidermidis biofilm formation in dynamic condition by BioFlux system.
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Affiliation(s)
- E Parrilli
- Department of Chemical Sciences, Federico II University, Naples, Italy
| | - R Papa
- Department of Public Health and Infectious Diseases, Sapienza University, Rome, Italy
| | - S Carillo
- Department of Chemical Sciences, Federico II University, Naples, Italy
| | - M Tilotta
- Department of Public Health and Infectious Diseases, Sapienza University, Rome, Italy
| | - A Casillo
- Department of Chemical Sciences, Federico II University, Naples, Italy
| | - F Sannino
- Department of Chemical Sciences, Federico II University, Naples, Italy Institute of Protein Biochemistry, CNR, Naples, Italy
| | - A Cellini
- Department of Public Health and Infectious Diseases, Sapienza University, Rome, Italy
| | - M Artini
- Department of Public Health and Infectious Diseases, Sapienza University, Rome, Italy
| | - L Selan
- Department of Public Health and Infectious Diseases, Sapienza University, Rome, Italy
| | - M M Corsaro
- Department of Chemical Sciences, Federico II University, Naples, Italy
| | - M L Tutino
- Department of Chemical Sciences, Federico II University, Naples, Italy
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Milanowski M, Pomastowski P, Railean-Plugaru V, Rafińska K, Ligor T, Buszewski B. Biosorption of silver cations onto Lactococcus lactis and Lactobacillus casei isolated from dairy products. PLoS One 2017; 12:e0174521. [PMID: 28362838 PMCID: PMC5375156 DOI: 10.1371/journal.pone.0174521] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 03/10/2017] [Indexed: 01/20/2023] Open
Abstract
The current work deals with the phenomenon of silver cations uptake by two kinds of bacteria isolated from dairy products. The mechanism of sorption of silver cations by Lactococcus lactis and Lactobacillus casei bacteria was investigated. Inductively coupled plasma–mass spectrometry (ICP-MS) was used for determination of silver concentration sorbed by bacteria. Analysis of charge distribution was conducted by diffraction light scattering method. Changes in the ultrastructure of Lactococcus lactis and Lactobacillus casei cells after treatment with silver cations were investigated using transmission electron microscopy observation. Molecular spectroscopy methods, namely Fourier transform-infrared spectroscopy (FT-IR) and matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) were employed for description of the sorption mechanism. Moreover, an analysis of volatile organic compounds (VOCs) extracted from bacterial cells was performed.
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Affiliation(s)
- Maciej Milanowski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Paweł Pomastowski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Viorica Railean-Plugaru
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Katarzyna Rafińska
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Tomasz Ligor
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
- * E-mail:
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Bosi E, Fondi M, Orlandini V, Perrin E, Maida I, de Pascale D, Tutino ML, Parrilli E, Lo Giudice A, Filloux A, Fani R. The pangenome of (Antarctic) Pseudoalteromonas bacteria: evolutionary and functional insights. BMC Genomics 2017; 18:93. [PMID: 28095778 PMCID: PMC5240218 DOI: 10.1186/s12864-016-3382-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 12/06/2016] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Pseudoalteromonas is a genus of ubiquitous marine bacteria used as model organisms to study the biological mechanisms involved in the adaptation to cold conditions. A remarkable feature shared by these bacteria is their ability to produce secondary metabolites with a strong antimicrobial and antitumor activity. Despite their biotechnological relevance, representatives of this genus are still lacking (with few exceptions) an extensive genomic characterization, including features involved in the evolution of secondary metabolites production. Indeed, biotechnological applications would greatly benefit from such analysis. RESULTS Here, we analyzed the genomes of 38 strains belonging to different Pseudoalteromonas species and isolated from diverse ecological niches, including extreme ones (i.e. Antarctica). These sequences were used to reconstruct the largest Pseudoalteromonas pangenome computed so far, including also the two main groups of Pseudoalteromonas strains (pigmented and not pigmented strains). The downstream analyses were conducted to describe the genomic diversity, both at genus and group levels. This allowed highlighting a remarkable genomic heterogeneity, even for closely related strains. We drafted all the main evolutionary steps that led to the current structure and gene content of Pseudoalteromonas representatives. These, most likely, included an extensive genome reduction and a strong contribution of Horizontal Gene Transfer (HGT), which affected biotechnologically relevant gene sets and occurred in a strain-specific fashion. Furthermore, this study also identified the genomic determinants related to some of the most interesting features of the Pseudoalteromonas representatives, such as the production of secondary metabolites, the adaptation to cold temperatures and the resistance to abiotic compounds. CONCLUSIONS This study poses the bases for a comprehensive understanding of the evolutionary trajectories followed in time by this peculiar bacterial genus and for a focused exploitation of their biotechnological potential.
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Affiliation(s)
- Emanuele Bosi
- Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, Via Madonna del Piano 6, I-501019, Sesto F.no Florence, Italy
| | - Marco Fondi
- Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, Via Madonna del Piano 6, I-501019, Sesto F.no Florence, Italy
| | - Valerio Orlandini
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Viale Pieraccini, 6, I-50139, Florence, Italy
| | - Elena Perrin
- Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, Via Madonna del Piano 6, I-501019, Sesto F.no Florence, Italy
| | - Isabel Maida
- Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, Via Madonna del Piano 6, I-501019, Sesto F.no Florence, Italy
| | - Donatella de Pascale
- Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino, 111, I-80131, Naples, Italy
| | - Maria Luisa Tutino
- Dipartimento di Scienze Chimiche, Complesso Universitario Monte S. Angelo, Via Cintia, I-80126, Naples, Italy
| | - Ermenegilda Parrilli
- Dipartimento di Scienze Chimiche, Complesso Universitario Monte S. Angelo, Via Cintia, I-80126, Naples, Italy
| | - Angelina Lo Giudice
- Institute for the Coastal Marine Environment, National Research Council, Spianata San Raineri 86, I-98122, Messina, Italy
- Department of Biological and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres 31, I-98166, Messina, Italy
| | - Alain Filloux
- Department of Life Sciences, Imperial College London, MRC Centre for Molecular Bacteriology and Infection, Flowers Building, 1st floor, South Kensington Campus, London, SW7 2AZ, United Kingdom
| | - Renato Fani
- Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, Via Madonna del Piano 6, I-501019, Sesto F.no Florence, Italy.
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Sannino F, Giuliani M, Salvatore U, Apuzzo GA, de Pascale D, Fani R, Fondi M, Marino G, Tutino ML, Parrilli E. A novel synthetic medium and expression system for subzero growth and recombinant protein production in Pseudoalteromonas haloplanktis TAC125. Appl Microbiol Biotechnol 2016; 101:725-734. [DOI: 10.1007/s00253-016-7942-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 09/20/2016] [Accepted: 10/13/2016] [Indexed: 02/05/2023]
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34
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Tedesco P, Maida I, Palma Esposito F, Tortorella E, Subko K, Ezeofor CC, Zhang Y, Tabudravu J, Jaspars M, Fani R, de Pascale D. Antimicrobial Activity of Monoramnholipids Produced by Bacterial Strains Isolated from the Ross Sea (Antarctica). Mar Drugs 2016; 14:md14050083. [PMID: 27128927 PMCID: PMC4882557 DOI: 10.3390/md14050083] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 04/18/2016] [Accepted: 04/18/2016] [Indexed: 11/16/2022] Open
Abstract
Microorganisms living in extreme environments represent a huge reservoir of novel antimicrobial compounds and possibly of novel chemical families. Antarctica is one of the most extraordinary places on Earth and exhibits many distinctive features. Antarctic microorganisms are well known producers of valuable secondary metabolites. Specifically, several Antarctic strains have been reported to inhibit opportunistic human pathogens strains belonging to Burkholderia cepacia complex (Bcc). Herein, we applied a biodiscovery pipeline for the identification of anti-Bcc compounds. Antarctic sub-sea sediments were collected from the Ross Sea, and used to isolate 25 microorganisms, which were phylogenetically affiliated to three bacterial genera (Psychrobacter, Arthrobacter, and Pseudomonas) via sequencing and analysis of 16S rRNA genes. They were then subjected to a primary cell-based screening to determine their bioactivity against Bcc strains. Positive isolates were used to produce crude extracts from microbial spent culture media, to perform the secondary screening. Strain Pseudomonas BNT1 was then selected for bioassay-guided purification employing SPE and HPLC. Finally, LC-MS and NMR structurally resolved the purified bioactive compounds. With this strategy, we achieved the isolation of three rhamnolipids, two of which were new, endowed with high (MIC < 1 μg/mL) and unreported antimicrobial activity against Bcc strains.
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Affiliation(s)
- Pietro Tedesco
- Institute of Protein Biochemistry, National Research Council, Via P. Castellino, 111, I-80131 Naples, Italy.
| | - Isabel Maida
- Department of Biology, University of Florence, Via Madonna del Piano 6, I-50019 Sesto Fiorentino (FI), Italy.
| | - Fortunato Palma Esposito
- Institute of Protein Biochemistry, National Research Council, Via P. Castellino, 111, I-80131 Naples, Italy.
| | - Emiliana Tortorella
- Institute of Protein Biochemistry, National Research Council, Via P. Castellino, 111, I-80131 Naples, Italy.
| | - Karolina Subko
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Old Aberdeen, AB24 3UE Scotland, UK.
| | - Chidinma Christiana Ezeofor
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Old Aberdeen, AB24 3UE Scotland, UK.
| | - Ying Zhang
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Old Aberdeen, AB24 3UE Scotland, UK.
| | - Jioji Tabudravu
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Old Aberdeen, AB24 3UE Scotland, UK.
| | - Marcel Jaspars
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Old Aberdeen, AB24 3UE Scotland, UK.
| | - Renato Fani
- Department of Biology, University of Florence, Via Madonna del Piano 6, I-50019 Sesto Fiorentino (FI), Italy.
| | - Donatella de Pascale
- Institute of Protein Biochemistry, National Research Council, Via P. Castellino, 111, I-80131 Naples, Italy.
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Papa R, Selan L, Parrilli E, Tilotta M, Sannino F, Feller G, Tutino ML, Artini M. Anti-Biofilm Activities from Marine Cold Adapted Bacteria Against Staphylococci and Pseudomonas aeruginosa. Front Microbiol 2015; 6:1333. [PMID: 26696962 PMCID: PMC4677098 DOI: 10.3389/fmicb.2015.01333] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 11/13/2015] [Indexed: 01/18/2023] Open
Abstract
Microbial biofilms have great negative impacts on the world’s economy and pose serious problems to industry, public health and medicine. The interest in the development of new approaches for the prevention and treatment of bacterial adhesion and biofilm formation has increased. Since, bacterial pathogens living in biofilm induce persistent chronic infections due to the resistance to antibiotics and host immune system. A viable approach should target adhesive properties without affecting bacterial vitality in order to avoid the appearance of resistant mutants. Many bacteria secrete anti-biofilm molecules that function in regulating biofilm architecture or mediating the release of cells from it during the dispersal stage of biofilm life cycle. Cold-adapted marine bacteria represent an untapped reservoir of biodiversity able to synthesize a broad range of bioactive compounds, including anti-biofilm molecules. The anti-biofilm activity of cell-free supernatants derived from sessile and planktonic cultures of cold-adapted bacteria belonging to Pseudoalteromonas, Psychrobacter, and Psychromonas species were tested against Staphylococcus aureus, Staphylococcus epidermidis, and Pseudomonas aeruginosa strains. Reported results demonstrate that we have selected supernatants, from cold-adapted marine bacteria, containing non-biocidal agents able to destabilize biofilm matrix of all tested pathogens without killing cells. A preliminary physico-chemical characterization of supernatants was also performed, and these analyses highlighted the presence of molecules of different nature that act by inhibiting biofilm formation. Some of them are also able to impair the initial attachment of the bacterial cells to the surface, thus likely containing molecules acting as anti-biofilm surfactant molecules. The described ability of cold-adapted bacteria to produce effective anti-biofilm molecules paves the way to further characterization of the most promising molecules and to test their use in combination with conventional antibiotics.
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Affiliation(s)
- Rosanna Papa
- Department of Public Health and Infectious Diseases, Sapienza University Rome, Italy
| | - Laura Selan
- Department of Public Health and Infectious Diseases, Sapienza University Rome, Italy
| | | | - Marco Tilotta
- Department of Public Health and Infectious Diseases, Sapienza University Rome, Italy
| | - Filomena Sannino
- Department of Chemical Sciences, University of Naples Federico II Naples, Italy
| | - Georges Feller
- Laboratory of Biochemistry, Centre for Protein Engineering, University of Liège Liège, Belgium
| | - Maria L Tutino
- Department of Chemical Sciences, University of Naples Federico II Naples, Italy
| | - Marco Artini
- Department of Public Health and Infectious Diseases, Sapienza University Rome, Italy
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36
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Berne S, Kalauz M, Lapat M, Savin L, Janussen D, Kersken D, Ambrožič Avguštin J, Zemljič Jokhadar Š, Jaklič D, Gunde-Cimerman N, Lunder M, Roškar I, Eleršek T, Turk T, Sepčić K. Screening of the Antarctic marine sponges (Porifera) as a source of bioactive compounds. Polar Biol 2015. [DOI: 10.1007/s00300-015-1835-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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37
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Claverías FP, Undabarrena A, González M, Seeger M, Cámara B. Culturable diversity and antimicrobial activity of Actinobacteria from marine sediments in Valparaíso bay, Chile. Front Microbiol 2015; 6:737. [PMID: 26284034 PMCID: PMC4516979 DOI: 10.3389/fmicb.2015.00737] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 07/06/2015] [Indexed: 12/21/2022] Open
Abstract
Marine-derived Actinobacteria are a source of a broad variety of secondary metabolites with diverse biological activities, such as antibiotics and antitumorals; many of which have been developed for clinical use. Rare Actinobacteria represent an untapped source of new bioactive compounds that have been scarcely recognized. In this study, rare Actinobacteria from marine sediments were isolated from the Valparaíso bay, Chile, and their potential to produce antibacterial compounds was evaluated. Different culture conditions and selective media that select the growth of Actinobacteria were used leading to the isolation of 68 bacterial strains. Comparative analysis of the 16S rRNA gene sequences led to identifying isolates that belong to the phylum Actinobacteria with genetic affiliations to 17 genera: Aeromicrobium, Agrococcus, Arthrobacter, Brachybacterium, Corynebacterium, Dietzia, Flaviflexus, Gordonia, Isoptericola, Janibacter, Microbacterium, Mycobacterium, Ornithinimicrobium, Pseudonocardia, Rhodococcus, Streptomyces, and Tessaracoccus. Also, one isolate could not be consistently classified and formed a novel phylogenetic branch related to the Nocardiopsaceae family. The antimicrobial activity of these isolates was evaluated, demonstrating the capability of specific novel isolates to inhibit the growth of Gram-positive and Gram-negative bacteria. In conclusion, this study shows a rich biodiversity of culturable Actinobacteria, associated to marine sediments from Valparaíso bay, highlighting novel rare Actinobacteria, and their potential for the production of biologically active compounds.
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Affiliation(s)
| | | | | | | | - Beatriz Cámara
- Laboratorio de Microbiología Molecular y Biotecnología Ambiental, Departamento de Química and Centro de Biotecnología Daniel Alkalay Lowitt, Universidad Técnica Federico Santa MaríaValparaíso, Chile
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Kanchiswamy CN, Malnoy M, Maffei ME. Chemical diversity of microbial volatiles and their potential for plant growth and productivity. FRONTIERS IN PLANT SCIENCE 2015; 6:151. [PMID: 25821453 PMCID: PMC4358370 DOI: 10.3389/fpls.2015.00151] [Citation(s) in RCA: 211] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 02/24/2015] [Indexed: 05/02/2023]
Abstract
Microbial volatile organic compounds (MVOCs) are produced by a wide array of microorganisms ranging from bacteria to fungi. A growing body of evidence indicates that MVOCs are ecofriendly and can be exploited as a cost-effective sustainable strategy for use in agricultural practice as agents that enhance plant growth, productivity, and disease resistance. As naturally occurring chemicals, MVOCs have potential as possible alternatives to harmful pesticides, fungicides, and bactericides as well as genetic modification. Recent studies performed under open field conditions demonstrate that efficiently adopting MVOCs may contribute to sustainable crop protection and production. We review here the chemical diversity of MVOCs by describing microbial-plants and microbial-microbial interactions. Furthermore, we discuss MVOCs role in inducing phenotypic plant responses and their potential physiological effects on crops. Finally, we analyze potential and actual limitations for MVOC use and deployment in field conditions as a sustainable strategy for improving productivity and reducing pesticide use.
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Affiliation(s)
- Chidananda Nagamangala Kanchiswamy
- Research and Innovation Center, Biology and Genomic of Fruit Plants, Fondazione Edmund MachTrento, Italy,
- *Correspondence: Chidananda Nagamangala Kanchiswamy, Research and Innovation Center, Biology and Genomic of Fruit Plants, Fondazione Edmund Mach, Via E.Mach 1, San Michele all'Adige, Trento, Italy
| | - Mickael Malnoy
- Research and Innovation Center, Biology and Genomic of Fruit Plants, Fondazione Edmund MachTrento, Italy,
| | - Massimo E. Maffei
- Plant Physiology Unit, Department of Life Sciences and Systems Biology, University of TurinTurin, Italy
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Antibiotic resistance differentiates Echinacea purpurea endophytic bacterial communities with respect to plant organs. Res Microbiol 2014; 165:686-94. [PMID: 25283726 DOI: 10.1016/j.resmic.2014.09.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 09/23/2014] [Accepted: 09/23/2014] [Indexed: 11/24/2022]
Abstract
Recent findings have shown that antibiotic resistance is widespread in multiple environments and multicellular organisms, as plants, harboring rich and complex bacterial communities, could be hot spot for emergence of antibiotic resistances as a response to bioactive molecules production by members of the same community. Here, we investigated a panel of 137 bacterial isolates present in different organs of the medicinal plant Echinacea purpurea, aiming to evaluate if different plant organs harbor strains with different antibiotic resistance profiles, implying then the presence of different biological interactions in the communities inhabiting different plant organs. Data obtained showed a large antibiotic resistance variability among strains, which was strongly related to the different plant organs (26% of total variance, P < 0.0001). Interestingly this uneven antibiotic resistance pattern was present also when a single genus (Pseudomonas), ubiquitous in all organs, was analyzed and no correlation of antibiotic resistance pattern with genomic relatedness among strains was found. In conclusion, we speculate that antibiotic resistance patterns are tightly linked to the type of plant organ under investigation, suggesting the presence of differential forms of biological interaction in stem/leaves, roots and rhizosphere.
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Fondi M, Maida I, Perrin E, Mellera A, Mocali S, Parrilli E, Tutino ML, Liò P, Fani R. Genome-scale metabolic reconstruction and constraint-based modelling of the Antarctic bacteriumPseudoalteromonas haloplanktis TAC125. Environ Microbiol 2014; 17:751-66. [DOI: 10.1111/1462-2920.12513] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 05/13/2014] [Indexed: 12/30/2022]
Affiliation(s)
- Marco Fondi
- Laboratory of Microbial and Molecular Evolution; Department of Biology; University of Florence; Via Madonna del Piano 6, Sesto Fiorentino Florence 50019 Italy
- ComBo; Florence Computational Biology Group; University of Florence; Via Madonna del Piano 6, Sesto Fiorentino Florence 50019 Italy
| | - Isabel Maida
- Laboratory of Microbial and Molecular Evolution; Department of Biology; University of Florence; Via Madonna del Piano 6, Sesto Fiorentino Florence 50019 Italy
| | - Elena Perrin
- Laboratory of Microbial and Molecular Evolution; Department of Biology; University of Florence; Via Madonna del Piano 6, Sesto Fiorentino Florence 50019 Italy
| | - Alessandra Mellera
- Laboratory of Microbial and Molecular Evolution; Department of Biology; University of Florence; Via Madonna del Piano 6, Sesto Fiorentino Florence 50019 Italy
- ComBo; Florence Computational Biology Group; University of Florence; Via Madonna del Piano 6, Sesto Fiorentino Florence 50019 Italy
| | - Stefano Mocali
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura; Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP); Firenze Italy
| | | | - Maria Luisa Tutino
- Department of Chemical Sciences; University of Naples Federico II; Naples Italy
| | - Pietro Liò
- Computer Laboratory; Cambridge University; Cambridge UK
| | - Renato Fani
- Laboratory of Microbial and Molecular Evolution; Department of Biology; University of Florence; Via Madonna del Piano 6, Sesto Fiorentino Florence 50019 Italy
- ComBo; Florence Computational Biology Group; University of Florence; Via Madonna del Piano 6, Sesto Fiorentino Florence 50019 Italy
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Maida I, Fondi M, Papaleo MC, Perrin E, Orlandini V, Emiliani G, de Pascale D, Parrilli E, Tutino ML, Michaud L, Lo Giudice A, Romoli R, Bartolucci G, Fani R. Phenotypic and genomic characterization of the Antarctic bacterium Gillisia sp. CAL575, a producer of antimicrobial compounds. Extremophiles 2013; 18:35-49. [DOI: 10.1007/s00792-013-0590-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 09/26/2013] [Indexed: 10/26/2022]
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