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Santos Ferreira DA, de Castro Levatti EV, Santa Cruz LM, Costa AR, Migotto ÁE, Yamada AY, Camargo CH, Christodoulides M, Lago JHG, Tempone AG. Saturated Iso-Type Fatty Acids from the Marine Bacterium Mesoflavibacter zeaxanthinifaciens with Anti-Trypanosomal Potential. Pharmaceuticals (Basel) 2024; 17:499. [PMID: 38675459 PMCID: PMC11053438 DOI: 10.3390/ph17040499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Chagas disease is a Neglected Tropical Disease with limited and ineffective therapy. In a search for new anti-trypanosomal compounds, we investigated the potential of the metabolites from the bacteria living in the corals and sediments of the southeastern Brazilian coast. Three corals, Tubastraea coccinea, Mussismilia hispida, Madracis decactis, and sediments yielded 11 bacterial strains that were fully identified by MALDI-ToF/MS or gene sequencing, resulting in six genera-Vibrio, Shewanella, Mesoflavibacter, Halomonas, Bacillus, and Alteromonas. To conduct this study, EtOAc extracts were prepared and tested against Trypanosoma cruzi. The crude extracts showed IC50 values ranging from 15 to 51 μg/mL against the trypomastigotes. The bacterium Mesoflavibacter zeaxanthinifaciens was selected for fractionation, resulting in an active fraction (FII) with IC50 values of 17.7 μg/mL and 23.8 μg/mL against the trypomastigotes and amastigotes, respectively, with neither mammalian cytotoxicity nor hemolytic activity. Using an NMR and ESI-HRMS analysis, the FII revealed the presence of unsaturated iso-type fatty acids. Its lethal action was investigated, leading to a protein spectral profile of the parasite altered after treatment. The FII also induced a rapid permeabilization of the plasma membrane of the parasite, leading to cell death. These findings demonstrate that these unsaturated iso-type fatty acids are possible new hits against T. cruzi.
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Affiliation(s)
- Dayana Agnes Santos Ferreira
- Pathophysiology Laboratory, Instituto Butantan, Av. Vital Brazil, 1500, Sao Paulo 05503-900, SP, Brazil; (D.A.S.F.); (E.V.d.C.L.)
| | | | - Lucas Monteiro Santa Cruz
- Centre of Organic Contaminants, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 355, Sao Paulo 01246-000, SP, Brazil; (L.M.S.C.); (A.R.C.)
| | - Alan Roberto Costa
- Centre of Organic Contaminants, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 355, Sao Paulo 01246-000, SP, Brazil; (L.M.S.C.); (A.R.C.)
| | - Álvaro E. Migotto
- Centre for Marine Biology, Universidade de São Paulo, Rodovia Doutor Manoel Hipólito do Rego, km. 131,5, Pitangueiras, Sao Sebastiao 11612-109, SP, Brazil;
| | - Amanda Yaeko Yamada
- Centre of Bacteriology, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 351, Sao Paulo 01246-000, SP, Brazil; (A.Y.Y.); (C.H.C.)
| | - Carlos Henrique Camargo
- Centre of Bacteriology, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 351, Sao Paulo 01246-000, SP, Brazil; (A.Y.Y.); (C.H.C.)
| | - Myron Christodoulides
- Molecular Microbiology, School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK;
| | - João Henrique G. Lago
- Centre of Natural Sciences and Humanities, Universidade Federal do ABC, Sao Paulo 09210-580, SP, Brazil
| | - Andre Gustavo Tempone
- Pathophysiology Laboratory, Instituto Butantan, Av. Vital Brazil, 1500, Sao Paulo 05503-900, SP, Brazil; (D.A.S.F.); (E.V.d.C.L.)
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Upadhyaya C, Patel H, Patel I, Ahir P, Upadhyaya T. Development of Biological Coating from Novel Halophilic Exopolysaccharide Exerting Shelf-Life-Prolonging and Biocontrol Actions for Post-Harvest Applications. Molecules 2024; 29:695. [PMID: 38338439 PMCID: PMC10856335 DOI: 10.3390/molecules29030695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/22/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
The literature presents the preserving effect of biological coatings developed from various microbial sources. However, the presented work exhibits its uniqueness in the utilization of halophilic exopolysaccharides as food coating material. Moreover, such extremophilic exopolysaccharides are more stable and economical production is possible. Consequently, the aim of the presented research was to develop a coating material from marine exopolysaccharide (EPS). The significant EPS producers having antagonistic attributes against selected phytopathogens were screened from different marine water and soil samples. TSIS01 isolate revealed the maximum antagonism well and EPS production was selected further and characterized as Bacillus tequilensis MS01 by 16S rRNA analysis. EPS production was optimized and deproteinized EPS was assessed for biophysical properties. High performance thin layer chromatography (HPTLC) analysis revealed that EPS was a heteropolymer of glucose, galactose, mannose, and glucuronic acid. Fourier transform infrared spectroscopy, X-ray diffraction, and UV-visible spectra validated the presence of determined sugars. It showed high stability at a wide range of temperatures, pH and incubation time, ≈1.63 × 106 Da molecular weight, intermediate solubility index (48.2 ± 3.12%), low water holding capacity (12.4 ± 1.93%), and pseudoplastic rheologic shear-thinning comparable to xanthan gum. It revealed antimicrobial potential against human pathogens and antioxidants as well as anti-inflammatory potential. The biocontrol assay of EPS against phytopathogens revealed the highest activity against Alternaria solani. The EPS-coated and control tomato fruits were treated with A. solani suspension to check the % disease incidence, which revealed a significant (p < 0.001) decline compared to uncoated controls. Moreover, it revealed shelf-life prolonging action on tomatoes comparable to xanthan gum and higher than chitosan. Consequently, the presented marine EPS was elucidated as a potent coating material to mitigate post-harvest losses.
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Affiliation(s)
- Chandni Upadhyaya
- School of Sciences, P. P. Savani University, Surat 394125, Gujarat, India
| | - Hiren Patel
- School of Sciences, P. P. Savani University, Surat 394125, Gujarat, India
- School of Agriculture, P. P. Savani University, Surat 394125, Gujarat, India
| | - Ishita Patel
- Shree P. M. Patel Institute of Integrated M. Sc. in Biotechnology, Sardar Patel University, Anand 388001, Gujarat, India
| | - Parth Ahir
- Shree P. M. Patel Institute of P. G. Studies in Research and Sciences, Sardar Patel University, Anand 388001, Gujarat, India
| | - Trushit Upadhyaya
- Chandubhai S. Patel Institute of Technology, Charotar University of Science & Technology, Changa, Anand 388421, Gujarat, India;
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Sigida EN, Kuzina MS, Kokoulin MS, Ibrahim IM, Grinev VS, Konnova SA, Fedonenko YP. Structure of the O-polysaccharide from the moderately halophilic bacterium Halomonas fontilapidosi KR26. Carbohydr Res 2024; 536:109019. [PMID: 38211449 DOI: 10.1016/j.carres.2023.109019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 01/13/2024]
Abstract
Lipopolysaccharide was obtained from the aerobic moderately halophilic bacterium Halomonas fontilapidosi KR26. The O-polysaccharide was isolated by mild acid degradation of the lipopolysaccharide and was examined by chemical methods and by 1H and 13C NMR spectroscopy, including 1H,1H COSY, TOCSY, ROESY, and 1H,13C HSQC, and HMBC experiments. The following structure of the linear tetrasaccharide repeating unit was deduced. →2)-α-l-Rhap-(1→2)-α-l-Rhap-(1→3)-α-l-Rhap-(1→3)-β-d-Galp-(1→.
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Affiliation(s)
- Elena N Sigida
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov, 410049, Russia.
| | - Marina S Kuzina
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov, 410049, Russia
| | - Maxim S Kokoulin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159/2 Prospekt 100 let Vladivostoku, Vladivostok, 690022, Russia
| | - Ibrahim M Ibrahim
- Department of Agricultural Microbiology, Faculty of Agriculture, Fayoum University, Fayoum, 63514, Egypt
| | - Vyacheslav S Grinev
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov, 410049, Russia; Chernyshevsky Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov, 410012, Russia
| | - Svetlana A Konnova
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov, 410049, Russia; Chernyshevsky Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov, 410012, Russia
| | - Yuliya P Fedonenko
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov, 410049, Russia; Chernyshevsky Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov, 410012, Russia
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Liu Z, Tang K, Zhou Y, Liu T, Guo Y, Wu D, Wang X. Active prophages in coral-associated Halomonas capable of lateral transduction. THE ISME JOURNAL 2024; 18:wrae085. [PMID: 38739683 PMCID: PMC11131426 DOI: 10.1093/ismejo/wrae085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/19/2024] [Accepted: 05/11/2024] [Indexed: 05/16/2024]
Abstract
Temperate phages can interact with bacterial hosts through lytic and lysogenic cycles via different mechanisms. Lysogeny has been identified as the major form of bacteria-phage interaction in the coral-associated microbiome. However, the lysogenic-to-lytic switch of temperate phages in ecologically important coral-associated bacteria and its ecological impact have not been extensively investigated. By studying the prophages in coral-associated Halomonas meridiana, we found that two prophages, Phm1 and Phm3, are inducible by the DNA-damaging agent mitomycin C and that Phm3 is spontaneously activated under normal cultivation conditions. Furthermore, Phm3 undergoes an atypical lytic pathway that can amplify and package adjacent host DNA, potentially resulting in lateral transduction. The induction of Phm3 triggered a process of cell lysis accompanied by the formation of outer membrane vesicles (OMVs) and Phm3 attached to OMVs. This unique cell-lysis process was controlled by a four-gene lytic module within Phm3. Further analysis of the Tara Ocean dataset revealed that Phm3 represents a new group of temperate phages that are widely distributed and transcriptionally active in the ocean. Therefore, the combination of lateral transduction mediated by temperate phages and OMV transmission offers a versatile strategy for host-phage coevolution in marine ecosystems.
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Affiliation(s)
- Ziyao Liu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- University of Chinese Academy of Sciences, No.1, Yanqihu East Road, Huairou District, Beijing 101408, China
| | - Kaihao Tang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- University of Chinese Academy of Sciences, No.1, Yanqihu East Road, Huairou District, Beijing 101408, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), No.1119, Haibin Road, Nansha District, Guangzhou 511458, China
| | - Yiqing Zhou
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Tianlang Liu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- University of Chinese Academy of Sciences, No.1, Yanqihu East Road, Huairou District, Beijing 101408, China
| | - Yunxue Guo
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- University of Chinese Academy of Sciences, No.1, Yanqihu East Road, Huairou District, Beijing 101408, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), No.1119, Haibin Road, Nansha District, Guangzhou 511458, China
| | - Duoting Wu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Xiaoxue Wang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- University of Chinese Academy of Sciences, No.1, Yanqihu East Road, Huairou District, Beijing 101408, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), No.1119, Haibin Road, Nansha District, Guangzhou 511458, China
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Bisaccia M, Binda E, Rosini E, Caruso G, Dell'Acqua O, Azzaro M, Laganà P, Tedeschi G, Maffioli EM, Pollegioni L, Marinelli F. A novel promising laccase from the psychrotolerant and halotolerant Antarctic marine Halomonas sp. M68 strain. Front Microbiol 2023; 14:1078382. [PMID: 36846806 PMCID: PMC9950745 DOI: 10.3389/fmicb.2023.1078382] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 01/04/2023] [Indexed: 02/12/2023] Open
Abstract
Microbial communities inhabiting the Antarctic Ocean show psychrophilic and halophilic adaptations conferring interesting properties to the enzymes they produce, which could be exploited in biotechnology and bioremediation processes. Use of cold- and salt-tolerant enzymes allows to limit costs, reduce contaminations, and minimize pretreatment steps. Here, we report on the screening of 186 morphologically diverse microorganisms isolated from marine biofilms and water samples collected in Terra Nova Bay (Ross Sea, Antarctica) for the identification of new laccase activities. After primary screening, 13.4 and 10.8% of the isolates were identified for the ability to oxidize 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and the dye azure B, respectively. Amongst them, the marine Halomonas sp. strain M68 showed the highest activity. Production of its laccase-like activity increased six-fold when copper was added to culture medium. Enzymatic activity-guided separation coupled with mass spectrometry identified this intracellular laccase-like protein (named Ant laccase) as belonging to the copper resistance system multicopper oxidase family. Ant laccase oxidized ABTS and 2,6-dimethoxy phenol, working better at acidic pHs The enzyme showed a good thermostability, with optimal temperature in the 40-50°C range and maintaining more than 40% of its maximal activity even at 10°C. Furthermore, Ant laccase was salt- and organic solvent-tolerant, paving the way for its use in harsh conditions. To our knowledge, this is the first report concerning the characterization of a thermo- and halo-tolerant laccase isolated from a marine Antarctic bacterium.
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Affiliation(s)
- Melissa Bisaccia
- Department of Biotechnology and Life Sciences (DBSV), University of Insubria, Varese, Italy,*Correspondence: Melissa Bisaccia,
| | - Elisa Binda
- Department of Biotechnology and Life Sciences (DBSV), University of Insubria, Varese, Italy
| | - Elena Rosini
- Department of Biotechnology and Life Sciences (DBSV), University of Insubria, Varese, Italy
| | - Gabriella Caruso
- Institute of Polar Sciences (CNR-ISP), National Research Council, Messina, Italy
| | - Ombretta Dell'Acqua
- Institute of Polar Sciences (CNR-ISP), National Research Council, Venice, Italy
| | - Maurizio Azzaro
- Institute of Polar Sciences (CNR-ISP), National Research Council, Messina, Italy
| | - Pasqualina Laganà
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging (BIOMORF), University of Messina, Messina, Italy
| | - Gabriella Tedeschi
- Department of Veterinary Medicine and Animal Science (DIVAS), University of Milan, Milan, Italy,Cimaina, University of Milan, Milan, Italy
| | - Elisa M. Maffioli
- Department of Veterinary Medicine and Animal Science (DIVAS), University of Milan, Milan, Italy,Cimaina, University of Milan, Milan, Italy
| | - Loredano Pollegioni
- Department of Biotechnology and Life Sciences (DBSV), University of Insubria, Varese, Italy
| | - Flavia Marinelli
- Department of Biotechnology and Life Sciences (DBSV), University of Insubria, Varese, Italy
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