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Kumar P, Verma A, Yadav P, Das J, Kumar L, Krishnamurthi S. Phylogenomic evaluation of Mangrovimicrobium sediminis gen. nov. sp. nov., the first nitrogen fixing member of the family Halieaceae adapted to mangrove habitat and reclassification of Halioglobus pacificus to Pseudohaliglobus pacificus comb. nov. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 933:172995. [PMID: 38719044 DOI: 10.1016/j.scitotenv.2024.172995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 04/20/2024] [Accepted: 05/02/2024] [Indexed: 05/19/2024]
Abstract
The taxonomic position and genomic characteristics of a nitrogen fixing and polymer degrading marine bacterium, strain SAOS 164 isolated from a mangrove sediment sample was investigated. Sequence analysis based on 16S rRNA gene identified it as a member of family Halieaceae with closest similarity to Haliea salexigens DSM 19537T (96.3 %), H. alexandrii LZ-16-2T (96.2 %) and Parahaliea maris HSLHS9T (96.0 %) but was distantly related to the genera Haliea, Parahaliea and Halioglobus in phylogenetic trees. In order to ascertain the exact taxonomic position, phylogeny based on RpoBC proteins, whole genome, core and orthologous genes, and comparative analysis of metabolic potential retrieved the strain in an independent lineage clustering along with the genera Halioglobus, Pseudohalioglobus and Seongchinamella. Further, various genome based delimitation parameters represented by mol % GC content, percentage of conserved proteins (POCP), and amino acid identity (AAI) along with chemotaxonomic markers (i.e. fatty acids and polar lipids) supported the inferences of genome based phylogeny and indicated that the strain SAOS 164 belongs to a novel genus. The genome was mapped to 4.8 Mb in size with 65.1 % DNA mol% G + C content. In-silico genomic investigation and phenotyping revealed diverse metabolite genes/pathways related to polymer hydrolysis, nitrogen fixation, light induced growth, carbohydrate, sulfur, phosphorus and amino acid metabolism, virulence factors, defense mechanism, and stress-responsive elements facilitating survival in the mangrove habitat. Based on polyphasic taxonomic approach including genome analyses, a novel genus Mangrovimicrobium sediminis gen. nov. sp. nov. (=SAOS 164T = MTCC 12907T = KCTC 52755T = JCM 32136T) is proposed. Additionally, the reclassification of Halioglobus pacificus (=DSM 27932T = KCTC 23430T = S1-72T) to Pseudhalioglobus pacificus comb. nov. is also proposed.
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Affiliation(s)
- Pravin Kumar
- Microbial Type Culture Collection & Gene Bank (MTCC), CSIR- Institute of Microbial Technology, Sector-39A, Chandigarh 160036, India
| | - Ashish Verma
- Microbial Type Culture Collection & Gene Bank (MTCC), CSIR- Institute of Microbial Technology, Sector-39A, Chandigarh 160036, India; Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden; Umeå Marine Sciences Centre, Hörnefors, Sweden
| | - Pooja Yadav
- Microbial Type Culture Collection & Gene Bank (MTCC), CSIR- Institute of Microbial Technology, Sector-39A, Chandigarh 160036, India
| | - Joyasree Das
- Microbial Type Culture Collection & Gene Bank (MTCC), CSIR- Institute of Microbial Technology, Sector-39A, Chandigarh 160036, India
| | - Lalit Kumar
- Microbial Type Culture Collection & Gene Bank (MTCC), CSIR- Institute of Microbial Technology, Sector-39A, Chandigarh 160036, India
| | - Srinivasan Krishnamurthi
- Microbial Type Culture Collection & Gene Bank (MTCC), CSIR- Institute of Microbial Technology, Sector-39A, Chandigarh 160036, India.
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Naga NG, El-Badan DE, Ghanem KM, Shaaban MI. It is the time for quorum sensing inhibition as alternative strategy of antimicrobial therapy. Cell Commun Signal 2023; 21:133. [PMID: 37316831 DOI: 10.1186/s12964-023-01154-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/29/2023] [Indexed: 06/16/2023] Open
Abstract
Multiple drug resistance poses a significant threat to public health worldwide, with a substantial increase in morbidity and mortality rates. Consequently, searching for novel strategies to control microbial pathogenicity is necessary. With the aid of auto-inducers (AIs), quorum sensing (QS) regulates bacterial virulence factors through cell-to-cell signaling networks. AIs are small signaling molecules produced during the stationary phase. When bacterial cultures reach a certain level of growth, these molecules regulate the expression of the bound genes by acting as mirrors that reflect the inoculum density.Gram-positive bacteria use the peptide derivatives of these signaling molecules, whereas Gram-negative bacteria use the fatty acid derivatives, and the majority of bacteria can use both types to modulate the expression of the target gene. Numerous natural and synthetic QS inhibitors (QSIs) have been developed to reduce microbial pathogenesis. Applications of QSI are vital to human health, as well as fisheries and aquaculture, agriculture, and water treatment. Video Abstract.
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Affiliation(s)
- Nourhan G Naga
- Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
| | - Dalia E El-Badan
- Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria, Egypt
- Department of Biological Sciences, Faculty of Science, Beirut Arab University, Beirut, Lebanon
| | - Khaled M Ghanem
- Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Mona I Shaaban
- Microbiology and Immunology Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
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Lakhan MN, Chen R, Liu F, Shar AH, Soomro IA, Chand K, Ahmed M, Hanan A, Khan A, Maitlo AA, Wang J. Construction of antifouling marine coatings via layer-by-layer assembly of chitosan and acid siloxane resin. JOURNAL OF POLYMER RESEARCH 2023. [DOI: 10.1007/s10965-023-03518-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Rawi NN, Ramzi MM, Rahman NIA, Ariffin F, Saidin J, Bhubalan K, Mazlan NW, Zin NAM, Siong JYF, Bakar K, Azemi AK, Ismail N. Antifouling Potential of Ethyl Acetate Extract of Marine Bacteria Pseudomonas aeruginosa Strain RLimb. Life (Basel) 2023; 13:life13030802. [PMID: 36983957 PMCID: PMC10053361 DOI: 10.3390/life13030802] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023] Open
Abstract
Biofouling is defined as the excessive colonization process of epibiotic organisms, ranging from microfoulers to macrofoulers, on any submerged surface in water. Previous research has attempted to explore the antifouling activity of bacterial isolates due to the biofouling problems occurring worldwide. One solution is to inhibit the early stage of fouling using secondary metabolites produced by marine bacteria. This study aims to determine the antifouling activities of the marine microorganism P. aeruginosa and to characterize the bacteria isolated as a potential anti-biofouling agent. The bacterial isolate was cultured and isolated on a media culture. The bacteria culture extract was extracted using ethyl acetate and concentrated prior to the bioassay method. It was screened for antibacterial activities against Gram-positive and Gram-negative bacteria, such as Bacillus cereus, Streptococcus uberis, Pseudomonas sp., and Vibrio parahaemolyticus, using the disk diffusion technique. The extract was investigated to verify its bioactivity in the prevention of biofilm formation following the crystal violet assay and aquarium test. The results indicated the inhibition of activity through biofilm formation, with the highest percentage at 83% of biofilm inhibition at a concentration of 0.1563 mg/mL. The bacterial isolate at a concentration of 5% showed the highest reduction in bacteria colonies in the aquarium test (161.8 × 103 CFU/mL compared to 722.5 × 103 CFU/mL for the blank sample). The bacterial isolate was characterized through phenotypic and genotypic tests for species identification. It was identified as a Gram-stain-negative, aerobic, and long-rod-shaped bacteria, designated as RLimb. Based on the 16S rDNA gene sequencing analysis, RLimb was identified as Pseudomonas aeruginosa (accession number: OP522351), exhibiting a similarity of 100% to the described neighbor P. aeruginosa strain DSM 50071. These results indicated that these isolated bacteria can potentially be used as a substitute for toxic antifoulants to prevent the formation of microfoulers.
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Affiliation(s)
- Nurul Najihah Rawi
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Mujahidah Mohd Ramzi
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Nor Izzati Abd Rahman
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Fazilah Ariffin
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia; (F.A.); (N.W.M.)
| | - Jasnizat Saidin
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Kesaven Bhubalan
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia; (F.A.); (N.W.M.)
| | - Noor Wini Mazlan
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia; (F.A.); (N.W.M.)
| | - Nor Atikah Mohd Zin
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Julius Yong Fu Siong
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Kamariah Bakar
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Ahmad Khusairi Azemi
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
- Correspondence: (A.K.A.); (N.I.); Tel.: +60-96683240 (N.I.)
| | - Noraznawati Ismail
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
- Correspondence: (A.K.A.); (N.I.); Tel.: +60-96683240 (N.I.)
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Ibrahim HAH, Abou Elhassayeb HE, El-Sayed WMM. Potential functions and applications of diverse microbial exopolysaccharides in marine environments. J Genet Eng Biotechnol 2022; 20:151. [PMID: 36318392 PMCID: PMC9626724 DOI: 10.1186/s43141-022-00432-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 10/08/2022] [Indexed: 01/25/2023]
Abstract
Exopolysaccharides (EPSs) from microorganisms are essential harmless natural biopolymers used in applications including medications, nutraceuticals and functional foods, cosmetics, and insecticides. Several microbes can synthesize and excrete EPSs with chemical properties and structures that make them suitable for several important applications. Microbes secrete EPSs outside their cell walls, as slime or as a "jelly" into the extracellular medium. These EPS-producing microbes are ubiquitous and can be isolated from aquatic and terrestrial environments, such as freshwater, marine water, wastewater, and soils. They have also been isolated from extreme niches like hot springs, cold waters, halophilic environments, and salt marshes. Recently, microbial EPSs have attracted interest for their applications such as environmental bio-flocculants because they are degradable and nontoxic. However, further efforts are required for the cost-effective and industrial-scale commercial production of microbial EPSs. This review focuses on the exopolysaccharides obtained from several extremophilic microorganisms, their synthesis, and manufacturing optimization for better cost and productivity. We also explored their role and applications in interactions between several organisms.
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Affiliation(s)
- Hassan A. H. Ibrahim
- grid.419615.e0000 0004 0404 7762Marine Microbiology Department, National Institute of Oceanography and Fisheries (NIOF), Cairo, 11516 Egypt
| | - Hala E. Abou Elhassayeb
- grid.419615.e0000 0004 0404 7762Marine Microbiology Department, National Institute of Oceanography and Fisheries (NIOF), Cairo, 11516 Egypt
| | - Waleed M. M. El-Sayed
- grid.419615.e0000 0004 0404 7762Marine Microbiology Department, National Institute of Oceanography and Fisheries (NIOF), Cairo, 11516 Egypt
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6
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Fluorinated-Triazole-Modified ZnO and Its Application in Marine Antifouling. COATINGS 2022. [DOI: 10.3390/coatings12060855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The accumulation of marine biological growth has irreversible negative effects on shipping and coastal fisheries. In this paper, a new antibacterial nanofiller—triazole fluoroaromatic hydrocarbon−modified nano−zinc oxide (ZnO−APTES−TRF)—was prepared by a Cu(I)−catalyzed azide–alkyne click chemical reaction. The modification of nano−ZnO with triazole ring fluoroaromatic hydrocarbons were testified by FT−IR, XPS, and EDS. The grafting rate of ZnO−APTES−TRF can reach 32.38%, which was verified by the TGA test. The ZnO−APTES−TRF was mixed with zinc acrylate resin to produce a low surface energy antifouling coating with a surface water contact angle of 106°. The bactericidal rate of ZnO−APTES−TRF against Escherichia coli, Staphylococcus aureus, and Pseudoalteromonas sp. can reach more than 98% due to the synergistic effect of triazole and fluorine. The 120−day marine experiment shows that the low surface energy antifouling coating of ZnO−APTES−TRF/ZA is expected to be widely used in the field of marine antifouling.
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Gao Y, Meng Q, Zhou X, Luo X, Su Z, Chen Z, Huang R, Liu Y, Zhang X. How do environmentally friendly antifouling alkaloids affect marine fouling microbial communities? THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 820:152910. [PMID: 34999079 DOI: 10.1016/j.scitotenv.2021.152910] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/28/2021] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
Most previous studies on antifouling (AF) agents have focused on the influence of biofilm formation constituted by single or multiple cultured microbial species, and very few studies have analyzed the relationship between environmentally friendly AF compounds and marine fouling microbial communities (MFMCs). This is the first investigation of the impact of three environmentally friendly alkaloids (5-chlorosclerotiamide, circumdatin F and notoamide C) produced by the deep-sea-derived fungus Aspergillus westerdijkiae on MFMCs using high-throughput Illumina sequencing in a field test. The results of this study showed that the three alkaloids could significantly decrease the coverage of marine microflora (p < 0.05) and affect the composition and diversity of MFMCs on polyvinyl chloride (PVC) plates. Furthermore, 5-chlorosclerotiamide and notoamide C could completely inhibit many macrofouler-inductive-bacteria, such as Pseudoalteromonas and Pseudomonas, and promote the anti-macrofouler-bacteria, such as Winogradskyella, from 0.21% to more than 10% of the MFMCs on PVC plates. These results suggested that 5-chlorosclerotiamide and notoamide C could influence the compositions of MFMCs and make it unfavorable for the settlement of macrofoulers, by reducing the abundance of macrofouler-inductive-bacteria and promoting the percentage of anti-macrofouler-bacteria on PVC plates. The present study provides a new way to evaluate the effect of environmentally friendly AF compounds and obtain a better understanding of the antifouling process.
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Affiliation(s)
- Yumiao Gao
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; School of Biological Sciences, University of Edinburgh, Edinburgh EH93FL, United Kingdom
| | - Qingyue Meng
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Xuefeng Zhou
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Xiaowei Luo
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Ziheng Su
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Zihui Chen
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Riming Huang
- College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Yonghong Liu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China.
| | - Xiaoyong Zhang
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China.
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Krsmanovic M, Ali H, Biswas D, Ghosh R, Dickerson AK. Fouling of mammalian hair fibres exposed to a titanium dioxide colloidal suspension. J R Soc Interface 2022; 19:20210904. [PMID: 35414217 PMCID: PMC9006035 DOI: 10.1098/rsif.2021.0904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Fouling of surfaces in prolonged contact with liquid often leads to detrimental alteration of material properties and performance. A wide range of factors which include mass transport, surface properties and surface interactions dictate whether foulants are able to adhere to a surface. Passive means of foulant rejection, such as the microscopic patterns, have been known to develop in nature. In this work, we investigate the anti-fouling behaviour of animal fur and its apparent passive resistance to fouling. We compare the fouling performance of several categories of natural and manufactured fibres, and present correlations between contamination susceptibility and physio-mechanical properties of the fibre and its environment. Lastly, we present a correlation between the fouling intensity of a fibre and the cumulative impact of multiple interacting factors declared in the form of a dimensionless group. Artificial and natural hair strands exhibit comparable anti-fouling behaviour in flow, however, the absence of flow improves the performance of some artificial fibres. Among the plethora of factors affecting the fouling of fur hair, the dimensionless groups we present herein provide the best demarcation between fibres of different origin.
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Affiliation(s)
- Milos Krsmanovic
- Department of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, FL, USA
| | - Hessein Ali
- Department of Mechanical Engineering, Union College, Schenectady, NY, USA
| | - Dipankar Biswas
- School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Ranajay Ghosh
- Department of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, FL, USA
| | - Andrew K Dickerson
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN, USA
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9
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Establishing an Agenda for Biofouling Research for the Development of the Marine Renewable Energy Industry in Indonesia. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2022. [DOI: 10.3390/jmse10030384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Marine renewable energy holds strategic potential in Indonesia, not only to meet the target of renewable energy share in the national energy mix but also to provide equal access to clean energy throughout the archipelago. Marine energy in Indonesia is still in the early phase of development, which mainly focusses on resources assessment and power generation through technology prototype testing. Based on a review of available literature, it is found that specific research on the effects of biofouling on material durability of marine energy infrastructure in Indonesia has yet to be addressed. In this study, a matrix that identifies and predicts key fouling organisms and their possible risks on marine renewable energy infrastructure in tropical waters of Indonesia is developed by analysing previous findings in temperate and subtropical waters. Based on the matrix developed, calcareous polychaetes (Serpulidae), barnacles (Amphibalanus spp.), and bivalves (Perna viridis) are among possible key fouling organisms that might pose risks to marine energy infrastructure in Indonesia, such as by adding weight and drag and causing corrosion. Further studies and detailed and statistically robust analysis of the biofouling and its impacts are needed to support the development of the technological performance of marine renewable energy in Indonesia.
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Gaudêncio SP, Pereira F. Predicting Antifouling Activity and Acetylcholinesterase Inhibition of Marine-Derived Compounds Using a Computer-Aided Drug Design Approach. Mar Drugs 2022; 20:md20020129. [PMID: 35200658 PMCID: PMC8879326 DOI: 10.3390/md20020129] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/28/2022] [Accepted: 02/06/2022] [Indexed: 11/19/2022] Open
Abstract
Biofouling is the undesirable growth of micro- and macro-organisms on artificial water-immersed surfaces, which results in high costs for the prevention and maintenance of this process (billion €/year) for aquaculture, shipping and other industries that rely on coastal and off-shore infrastructure. To date, there are still no sustainable, economical and environmentally safe solutions to overcome this challenging phenomenon. A computer-aided drug design (CADD) approach comprising ligand- and structure-based methods was explored for predicting the antifouling activities of marine natural products (MNPs). In the CADD ligand-based method, 141 organic molecules extracted from the ChEMBL database and literature with antifouling screening data were used to build the quantitative structure–activity relationship (QSAR) classification model. An overall predictive accuracy score of up to 71% was achieved with the best QSAR model for external and internal validation using test and training sets. A virtual screening campaign of 14,492 MNPs from Encinar’s website and 14 MNPs that are currently in the clinical pipeline was also carried out using the best QSAR model developed. In the CADD structure-based approach, the 125 MNPs that were selected by the QSAR approach were used in molecular docking experiments against the acetylcholinesterase enzyme. Overall, 16 MNPs were proposed as the most promising marine drug-like leads as antifouling agents, e.g., macrocyclic lactam, macrocyclic alkaloids, indole and pyridine derivatives.
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Affiliation(s)
- Susana P. Gaudêncio
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, 2819-516 Caparica, Portugal;
- UCIBIO—Applied Molecular Biosciences Unit, Department of Chemistry, Blue Biotechnology and Biomedicine Lab, NOVA School of Science and Technology, NOVA University of Lisbon, 2819-516 Caparica, Portugal
| | - Florbela Pereira
- LAQV, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal
- Correspondence:
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Wang KL, Dou ZR, Gong GF, Li HF, Jiang B, Xu Y. Anti-Larval and Anti-Algal Natural Products from Marine Microorganisms as Sources of Anti-Biofilm Agents. Mar Drugs 2022; 20:md20020090. [PMID: 35200620 PMCID: PMC8876061 DOI: 10.3390/md20020090] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 01/13/2022] [Accepted: 01/14/2022] [Indexed: 12/19/2022] Open
Abstract
Bacteria growing inside biofilms are more resistant to hostile environments, conventional antibiotics, and mechanical stresses than their planktonic counterparts. It is estimated that more than 80% of microbial infections in human patients are biofilm-based, and biofouling induced by the biofilms of some bacteria causes serious ecological and economic problems throughout the world. Therefore, exploring highly effective anti-biofilm compounds has become an urgent demand for the medical and marine industries. Marine microorganisms, a well-documented and prolific source of natural products, provide an array of structurally distinct secondary metabolites with diverse biological activities. However, up to date, only a handful of anti-biofilm natural products derived from marine microorganisms have been reported. Meanwhile, it is worth noting that some promising antifouling (AF) compounds from marine microbes, particularly those that inhibit settlement of fouling invertebrate larvae and algal spores, can be considered as potential anti-biofilm agents owing to the well-known knowledge of the correlations between biofilm formation and the biofouling process of fouling organisms. In this review, a total of 112 anti-biofilm, anti-larval, and anti-algal natural products from marine microbes and 26 of their synthetic analogues are highlighted from 2000 to 2021. These compounds are introduced based on their microbial origins, and then categorized into the following different structural groups: fatty acids, butenolides, terpenoids, steroids, phenols, phenyl ethers, polyketides, alkaloids, flavonoids, amines, nucleosides, and peptides. The preliminary structure-activity relationships (SAR) of some important compounds are also briefly discussed. Finally, current challenges and future research perspectives are proposed based on opinions from many previous reviews.
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Affiliation(s)
- Kai-Ling Wang
- Yunnan Key Laboratory of Screening and Research on Anti-Pathogenic Plant Resources from West Yunnan (Cultivation), Institute of Materia Medica, College of Pharmacy, Dali University, Dali 671000, China; (K.-L.W.); (Z.-R.D.); (G.-F.G.); (H.-F.L.); (B.J.)
- Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China
| | - Zheng-Rong Dou
- Yunnan Key Laboratory of Screening and Research on Anti-Pathogenic Plant Resources from West Yunnan (Cultivation), Institute of Materia Medica, College of Pharmacy, Dali University, Dali 671000, China; (K.-L.W.); (Z.-R.D.); (G.-F.G.); (H.-F.L.); (B.J.)
| | - Gao-Fen Gong
- Yunnan Key Laboratory of Screening and Research on Anti-Pathogenic Plant Resources from West Yunnan (Cultivation), Institute of Materia Medica, College of Pharmacy, Dali University, Dali 671000, China; (K.-L.W.); (Z.-R.D.); (G.-F.G.); (H.-F.L.); (B.J.)
| | - Hai-Feng Li
- Yunnan Key Laboratory of Screening and Research on Anti-Pathogenic Plant Resources from West Yunnan (Cultivation), Institute of Materia Medica, College of Pharmacy, Dali University, Dali 671000, China; (K.-L.W.); (Z.-R.D.); (G.-F.G.); (H.-F.L.); (B.J.)
| | - Bei Jiang
- Yunnan Key Laboratory of Screening and Research on Anti-Pathogenic Plant Resources from West Yunnan (Cultivation), Institute of Materia Medica, College of Pharmacy, Dali University, Dali 671000, China; (K.-L.W.); (Z.-R.D.); (G.-F.G.); (H.-F.L.); (B.J.)
| | - Ying Xu
- Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China
- Correspondence: ; Tel.: +86-7552-695-8849
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12
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Li P, Su X, Hao D, Yang M, Gui T, Cong W, Jiang W, Ge X, Guo X. One-pot method for preparation of capsaicin-containing double-network hydrogels for marine antifouling. RSC Adv 2022; 12:15613-15622. [PMID: 35685171 PMCID: PMC9126649 DOI: 10.1039/d2ra00502f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 05/16/2022] [Indexed: 01/03/2023] Open
Abstract
Marine biofouling which interferes with normal marine operation and also causes huge economic loss has become a worldwide problem. With the development of society, there is an urgent need to develop non-toxic and efficient anti-fouling strategies. Capsaicin is an environmentally friendly antifouling agent, but controlling the stable release of capsaicin from the coating is still a challenge to be solved. To achieve long-lasting antifouling property, in this work, we incorporate a derivative of capsaicin N-(4-hydroxy-3-methoxybenzyl)acrylamide (HMBA) to prepare double network (DN) hydrogels and make HMBA a part of the polymer network. Polyvinyl alcohol (PVA) has good hydrophilicity, and as a soft and ductile network, acrylamide (AM) and HMBA can polymerize to generate a rigid and brittle network. By adjusting the content of HMBA in the DN hydrogels, we can obtain a PVA–PAHX hydrogel with high mechanical strength, low swelling rate, and excellent antifouling effect, which provides a feasible way for the practical application of a hydrogel coating in long-term marine antifouling. Double-network hydrogel coatings containing capsaicin analogs were prepared by a one-pot method based on a green strategy, by incorporating a derivative of capsaicin N-(4-hydroxy-3-methoxybenzyl) acrylamide into the polymer network. An antifouling effect can be achieved.![]()
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Affiliation(s)
- Pei Li
- College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xin Su
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Dezhao Hao
- Laboratory of Bio-Inspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100191, China
| | - Ming Yang
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Taijiang Gui
- State Key Laboratory of Marine Coatings, Marine Chemical Research Institute Co. Ltd, China
| | - Weiwei Cong
- State Key Laboratory of Marine Coatings, Marine Chemical Research Institute Co. Ltd, China
| | - Wenqiang Jiang
- College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Xiuli Ge
- College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Xinglin Guo
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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13
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Torres FG, De-la-Torre GE. Environmental pollution with antifouling paint particles: Distribution, ecotoxicology, and sustainable alternatives. MARINE POLLUTION BULLETIN 2021; 169:112529. [PMID: 34058498 DOI: 10.1016/j.marpolbul.2021.112529] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/15/2021] [Accepted: 05/17/2021] [Indexed: 05/05/2023]
Abstract
Antifouling paint particles (APPs) are a type of paint particle loaded with toxic biocidal compounds. The present review focused on the current knowledge in respect of the abundance, distribution, and ecotoxicological effects of APPs in the marine environment. Also, the recent advances in nontoxic biobased antifouling paints were discussed as potential alternatives to contemporary marine coatings. The presence of APPs is mainly associated with boat maintenance in boatyards and port areas. Conventional microplastic assessments showed a significant contribution of paint particles to the morphological composition. Moreover, recent ecotoxicological studies demonstrated that environmental concentrations of APPs induce mortality (LC50) in sediment dwellers and macroinvertebrates. Novel biocides from natural sources and biopolymer binders in the formulation of antifouling paints are proposed as potential alternatives to conventional antifouling paints. The toxicity of most natural biocides is negligible to nontargeted species, while biopolymers are expected to prevent the formation of APPs.
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Affiliation(s)
- Fernando G Torres
- Department of Mechanical Engineering, Pontificia Universidad Católica del Perú, Av. Universitaria 1801, 15088 Lima, Peru.
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14
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An Analysis of Biosynthesis Gene Clusters and Bioactivity of Marine Bacterial Symbionts. Curr Microbiol 2021; 78:2522-2533. [PMID: 34041587 DOI: 10.1007/s00284-021-02535-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 05/05/2021] [Indexed: 01/28/2023]
Abstract
Symbiotic marine bacteria have a pivotal role in drug discovery due to the synthesis of diverse biologically potential compounds. The marine bacterial phyla proteobacteria, actinobacteria and firmicutes are commonly associated with marine macro organisms and frequently reported as dominant bioactive compound producers. They can produce biologically active compounds that possess antimicrobial, antiviral, antitumor, antibiofilm and antifouling properties. Synthesis of these bioactive compounds is controlled by a set of genes of their genomes that is known as biosynthesis gene clusters (BGCs). The development in the field of biotechnology and bioinformatics has uncovered the potential BGCs of the bacterial genome and its functions. Now-a-days researchers have focused their attention on the identification of potential BGCs for the discovery of novel bioactive compounds using advanced technology. This review highlights the marine bacterial symbionts and their BGCs which are responsible for the synthesis of bioactive compounds.
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15
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Zhang S, Liang X, Gadd GM, Zhao Q. Marine Microbial-Derived Antibiotics and Biosurfactants as Potential New Agents against Catheter-Associated Urinary Tract Infections. Mar Drugs 2021; 19:255. [PMID: 33946845 PMCID: PMC8145997 DOI: 10.3390/md19050255] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/27/2021] [Accepted: 04/27/2021] [Indexed: 11/26/2022] Open
Abstract
Catheter-associated urinary tract infections (CAUTIs) are among the leading nosocomial infections in the world and have led to the extensive study of various strategies to prevent infection. However, despite an abundance of anti-infection materials having been studied over the last forty-five years, only a few types have come into clinical use, providing an insignificant reduction in CAUTIs. In recent decades, marine resources have emerged as an unexplored area of opportunity offering huge potential in discovering novel bioactive materials to combat human diseases. Some of these materials, such as antimicrobial compounds and biosurfactants synthesized by marine microorganisms, exhibit potent antimicrobial, antiadhesive and antibiofilm activity against a broad spectrum of uropathogens (including multidrug-resistant pathogens) that could be potentially used in urinary catheters to eradicate CAUTIs. This paper summarizes information on the most relevant materials that have been obtained from marine-derived microorganisms over the last decade and discusses their potential as new agents against CAUTIs, providing a prospective proposal for researchers.
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Affiliation(s)
- Shuai Zhang
- School of Mechanical and Aerospace Engineering, Queen’s University Belfast, Belfast BT9 5AH, UK;
| | - Xinjin Liang
- The Bryden Center, School of Chemical and Chemistry Engineering, Queen’s University Belfast, Belfast BT7 1NN, UK;
- School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK;
| | | | - Qi Zhao
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, UK
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16
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Lainioti GC, Tsapikouni A, Druvari D, Avramidis P, Prevedouros I, Glaropoulos A, Kallitsis JK. Environmentally Friendly Cross-Linked Antifouling Coatings Based on Dual Antimicrobial Action. Int J Mol Sci 2021; 22:ijms22094658. [PMID: 33925039 PMCID: PMC8125455 DOI: 10.3390/ijms22094658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 11/30/2022] Open
Abstract
The synthesis of environmentally friendly antimicrobial polymeric coatings, especially in the case of aquaculture, that inhibit the growth of bio-deposits is a very important issue that will contribute to the cost reduction of nets’ cleaning process as well as the protection of the submarine wealth from the biostatic substances used so far. In the present work, the antimicrobial polymers P(SSAmC16-co-VBCHAMx) and the terpolymer P(SSAmC16w-co-VBCHAMx-co-GMAy) were synthesized, bearing quaternary ammonium compounds, electrostatically bound and covalently attached at the same polymer chain. The combination of the two types is of particular importance, as it can provide effective antimicrobial polymeric materials with self-polishing capabilities as a result of the released nature of the antimicrobial, in combination with the permanent local action of the immobilized species. The cross-linking reaction of the terpolymer P(SSAmC16w-co-VBCHAMx-co-GMAy) with the homopolymer polyacrylic acid (PAA) was tested at 120 °C in terms of the equivalent ratio between epoxy and carboxyl groups. The synthesized polymers were further used for the coating of aquaculture nets and tested in terms of antifouling efficiency in lab and scale-up conditions. Uncoated nets were also used in all applications for comparison reasons. The coated nets performed efficiently for 35 days in lab-scale and 66 days in scale-up conditions, showing a high antifouling activity in both fields compared to the uncoated nets.
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Affiliation(s)
- Georgia C. Lainioti
- Department of Chemistry, University of Patras, GR–26504 Patras, Achaia, Greece; (A.T.); (D.D.); (J.K.K.)
- Correspondence: ; Tel.: +30-261-099-7121
| | - Anthi Tsapikouni
- Department of Chemistry, University of Patras, GR–26504 Patras, Achaia, Greece; (A.T.); (D.D.); (J.K.K.)
| | - Denisa Druvari
- Department of Chemistry, University of Patras, GR–26504 Patras, Achaia, Greece; (A.T.); (D.D.); (J.K.K.)
| | - Pavlos Avramidis
- Department of Geology, University of Patras, GR–26504 Patras, Achaia, Greece; (P.A.); (I.P.)
| | - Ioannis Prevedouros
- Department of Geology, University of Patras, GR–26504 Patras, Achaia, Greece; (P.A.); (I.P.)
| | | | - Joannis K. Kallitsis
- Department of Chemistry, University of Patras, GR–26504 Patras, Achaia, Greece; (A.T.); (D.D.); (J.K.K.)
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17
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Deng Y, Song GL, Zheng D, Zhang Y. Fabrication and synergistic antibacterial and antifouling effect of an organic/inorganic hybrid coating embedded with nanocomposite Ag@TA-SiO particles. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.126085] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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18
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Zampino D, Pedotti S, Ussia M, Dattilo S, Mancuso M, Zaccone R, Patti A. Preparation, characterization, and antimicrobial activity of ferrocene‐containing polymeric materials. J Appl Polym Sci 2021. [DOI: 10.1002/app.49852] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Daniela Zampino
- CNR—Istituto per i Polimeri, Compositi e Biomateriali Catania Italy
| | - Sonia Pedotti
- CNR—Istituto di Chimica Biomolecolare, Catania, Italy Catania Italy
| | - Martina Ussia
- CNR—Istituto per i Polimeri, Compositi e Biomateriali Catania Italy
- CNR—Istituto per la Microelettronica e Microsistemi (c/o Dipartimento di Fisica Università Catania) Catania Italy
| | - Sandro Dattilo
- CNR—Istituto per i Polimeri, Compositi e Biomateriali Catania Italy
| | - Monique Mancuso
- CNR—Istituto per le Risorse Biologiche e le Biotecnologie Marine Messina Italy
| | | | - Angela Patti
- CNR—Istituto di Chimica Biomolecolare, Catania, Italy Catania Italy
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19
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The Seagrass Holobiont: What We Know and What We Still Need to Disclose for Its Possible Use as an Ecological Indicator. WATER 2021. [DOI: 10.3390/w13040406] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Microbes and seagrass establish symbiotic relationships constituting a functional unit called the holobiont that reacts as a whole to environmental changes. Recent studies have shown that the seagrass microbial associated community varies according to host species, environmental conditions and the host’s health status, suggesting that the microbial communities respond rapidly to environmental disturbances and changes. These changes, dynamics of which are still far from being clear, could represent a sensitive monitoring tool and ecological indicator to detect early stages of seagrass stress. In this review, the state of art on seagrass holobiont is discussed in this perspective, with the aim of disentangling the influence of different factors in shaping it. As an example, we expand on the widely studied Halophila stipulacea’s associated microbial community, highlighting the changing and the constant components of the associated microbes, in different environmental conditions. These studies represent a pivotal contribution to understanding the holobiont’s dynamics and variability pattern, and to the potential development of ecological/ecotoxicological indices. The influences of the host’s physiological and environmental status in changing the seagrass holobiont, alongside the bioinformatic tools for data analysis, are key topics that need to be deepened, in order to use the seagrass-microbial interactions as a source of ecological information.
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20
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Liu LL, Wu CH, Qian PY. Marine natural products as antifouling molecules - a mini-review (2014-2020). BIOFOULING 2020; 36:1210-1226. [PMID: 33401982 DOI: 10.1080/08927014.2020.1864343] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 06/12/2023]
Abstract
In the present review, 182 antifouling (AF) natural products from marine microorganisms, algae and marine invertebrates reported from August 2014 to May 2020 are presented. Amongst these compounds, over half were isolated from marine-derived microorganisms, including 70 compounds from fungi and 31 compounds from bacteria. The structure-relationship of some of these compounds is also briefly discussed. Based on the work reported, a general workflow was drafted to refine the procedures for the commercialization of any novel AF compounds. Finally, butenolide, which is considered a potential environmentally friendly antifoulant, is used as a case study to show the procedures involved in AF compound work from the aspect of discovery, structure optimization, toxicity, stability, AF mechanism and coating incorporation, which highlight the current challenges and future perspectives in AF compound research.
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Affiliation(s)
- Ling-Li Liu
- Department of Ocean Science and Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Chuan-Hai Wu
- Department of Ocean Science and Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China
| | - Pei-Yuan Qian
- Department of Ocean Science and Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China
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21
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Liu C, Yan B, Duan J, Hou B. Biofilm inhibition effect of an ivermectin/silyl acrylate copolymer coating and the colonization dynamics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 736:139599. [PMID: 32479963 DOI: 10.1016/j.scitotenv.2020.139599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/28/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
Ivermectin is now being used as a substitute for toxic organic biocide in marine antifouling coatings due to its environmentally friendly nature and the efficacy against parasites. However, the release performance of ivermectin from the hydrolyzed acrylic-based resin into the seawater is not clear. Moreover, the efficiency and mechanism of ivermectin in preventing biofilm or slime formation have not been fully investigated. In this study, a coating was developed by mixing ivermectin with an acrylic-based resin, silyl acrylate copolymer, and a 45-day in situ antifouling test was conducted in the Yellow Sea. Direct observation and confocal microscope investigation indicated that the polymer coating with ivermectin was effective against biofilm formation. High-throughput sequencing analysis showed that ivermectin can selectively inhibit the adhesion of microorganisms. Abundances of Gammaproteobacteria and Alphaproteobacteria decreased significantly with the increased concentration of ivermectin. As for the eukaryote community, species of Stolidobranchia and unidentified_Bacillariophyceae were proved to be sensitive to ivermectin. Therefore, the ivermectin/silyl acrylate copolymer coating is a promising substitute for marine antifouling material.
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Affiliation(s)
- Chao Liu
- CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China
| | - Binghua Yan
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Jizhou Duan
- CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China.
| | - Baorong Hou
- CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China
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22
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Modolon F, Barno AR, Villela HDM, Peixoto RS. Ecological and biotechnological importance of secondary metabolites produced by coral-associated bacteria. J Appl Microbiol 2020; 129:1441-1457. [PMID: 32627318 DOI: 10.1111/jam.14766] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/20/2020] [Accepted: 06/28/2020] [Indexed: 12/16/2022]
Abstract
Symbiotic relationships between corals and their associated micro-organisms are essential to maintain host homeostasis. Coral-associated bacteria (CAB) can have different beneficial roles in the coral metaorganism, such as metabolizing essential nutrients for the coral host and protecting the coral from pathogens. Many CAB exert these functions via secondary metabolites, which include antibacterial, antifouling, antitumour, antiparasitic and antiviral compounds. This review describes how analysis of CAB has led to the discovery of secondary metabolites with potential biotechnological applications. The most commonly found types of secondary metabolites, antimicrobial and antibiofilm compounds, are emphasized and described. Recently developed methods that can be applied to enhance the culturing of CAB from shallow-water reefs and the less-studied deep-sea coral reefs are also discussed. Last, we suggest how the combined use of meta-omics and innovative growth-diffusion techniques can vastly improve the discovery of novel compounds in coral environments.
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Affiliation(s)
- F Modolon
- Department of Microbiology, Paulo de Góes Microbiology Institute, Federal University of Rio De Janeiro, Rio de Janeiro, RJ, Brazil
| | - A R Barno
- Department of Microbiology, Paulo de Góes Microbiology Institute, Federal University of Rio De Janeiro, Rio de Janeiro, RJ, Brazil
| | - H D M Villela
- Department of Microbiology, Paulo de Góes Microbiology Institute, Federal University of Rio De Janeiro, Rio de Janeiro, RJ, Brazil
| | - R S Peixoto
- Department of Microbiology, Paulo de Góes Microbiology Institute, Federal University of Rio De Janeiro, Rio de Janeiro, RJ, Brazil.,IMAM-AquaRio - Rio de Janeiro Aquarium Research Center, Rio de Janeiro, RJ, Brazil
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23
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Gu Y, Yu L, Mou J, Wu D, Xu M, Zhou P, Ren Y. Research Strategies to Develop Environmentally Friendly Marine Antifouling Coatings. Mar Drugs 2020; 18:E371. [PMID: 32708476 PMCID: PMC7404020 DOI: 10.3390/md18070371] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 01/13/2023] Open
Abstract
There are a large number of fouling organisms in the ocean, which easily attach to the surface of ships, oil platforms and breeding facilities, corrode the surface of equipment, accelerate the aging of equipment, affect the stability and safety of marine facilities and cause serious economic losses. Antifouling coating is an effective method to prevent marine biological fouling. Traditional organic tin and copper oxide coatings are toxic and will contaminate seawater and destroy marine ecology and have been banned or restricted. Environmentally friendly antifouling coatings have become a research hotspot. Among them, the use of natural biological products with antifouling activity as antifouling agents is an important research direction. In addition, some fouling release coatings without antifoulants, biomimetic coatings, photocatalytic coatings and other novel antifouling coatings have also developed rapidly. On the basis of revealing the mechanism of marine biofouling, this paper reviews the latest research strategies to develop environmentally friendly marine antifouling coatings. The composition, antifouling characteristics, antifouling mechanism and effects of various coatings were analyzed emphatically. Finally, the development prospects and future development directions of marine antifouling coatings are forecasted.
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Affiliation(s)
- Yunqing Gu
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Lingzhi Yu
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Jiegang Mou
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Denghao Wu
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Maosen Xu
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Peijian Zhou
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Yun Ren
- Zhijiang College, Zhejiang University of Technology, Shaoxing 312030, China;
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24
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Mensch B, Neulinger SC, Künzel S, Wahl M, Schmitz RA. Warming, but Not Acidification, Restructures Epibacterial Communities of the Baltic Macroalga Fucus vesiculosus With Seasonal Variability. Front Microbiol 2020; 11:1471. [PMID: 32676070 PMCID: PMC7333354 DOI: 10.3389/fmicb.2020.01471] [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: 12/18/2019] [Accepted: 06/05/2020] [Indexed: 11/13/2022] Open
Abstract
Due to ocean acidification and global warming, surface seawater of the western Baltic Sea is expected to reach an average of ∼1100 μatm pCO2 and an increase of ∼5°C by the year 2100. In four consecutive experiments (spanning 10-11 weeks each) in all seasons within 1 year, the abiotic factors temperature (+5°C above in situ) and pCO2 (adjusted to ∼1100 μatm) were tested for their single and combined effects on epibacterial communities of the brown macroalga Fucus vesiculosus and on bacteria present in the surrounding seawater. The experiments were set up in three biological replicates using the Kiel Outdoor Benthocosm facility (Kiel, Germany). Phylogenetic analyses of the respective microbiota were performed by bacterial 16S (V1-V2) rDNA Illumina MiSeq amplicon sequencing after 0, 4, 8, and 10/11 weeks per season. The results demonstrate (I) that the bacterial community composition varied in time and (II) that relationships between operational taxonomic units (OTUs) within an OTU association network were mainly governed by the habitat. (III) Neither single pCO2 nor pCO2:Temperature interaction effects were statistically significant. However, significant impact of ocean warming was detected varying among seasons. (IV) An indicator OTU (iOTU) analysis identified several iOTUs that were strongly influenced by temperature in spring, summer, and winter. In the warming treatments of these three seasons, we observed decreasing numbers of bacteria that are commonly associated with a healthy marine microbial community and-particularly during spring and summer-an increase in potentially pathogenic and bacteria related to intensified microfouling. This might lead to severe consequences for the F. vesiculosus holobiont finally affecting the marine ecosystem.
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Affiliation(s)
- Birte Mensch
- Department of Biology, Institute of General Microbiology, Kiel University, Kiel, Germany
| | - Sven C. Neulinger
- Department of Biology, Institute of General Microbiology, Kiel University, Kiel, Germany
- omics2view.consulting GbR, Kiel, Germany
| | - Sven Künzel
- Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - Martin Wahl
- Marine Ecology Division, Research Unit Experimental Ecology, Benthic Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - Ruth A. Schmitz
- Department of Biology, Institute of General Microbiology, Kiel University, Kiel, Germany
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25
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Hu J, Sun B, Zhang H, Lu A, Zhang H, Zhang H. Terpolymer resin containing bioinspired borneol and controlled release of camphor: Synthesis and antifouling coating application. Sci Rep 2020; 10:10375. [PMID: 32587290 PMCID: PMC7316772 DOI: 10.1038/s41598-020-67073-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 06/01/2020] [Indexed: 11/09/2022] Open
Abstract
Marine biofouling can cause a biocorrosion, resulting in degradation and failure of materials and structures. In order to prevent sea creatures from attaching to the surface, in this work, a new environmentally friendly antifouling coating by incorporating antibacterial polymers and natural antifouling agents has been designed and synthesized. Surface chemical composition and changes in surface hydrophobicity were studied by FTIR spectroscopy and contact angle measurements, respectively. Measurements of mass loss of antifouling resin were also carried out and the release rate of camphor from antifouling coating was tested by using UPLC. It had been found that the changes in the content of triisopropylsilylacrylate (TIPSA) (from 4% to 12%) and isobornyl methacrylate (IBOMA) (from 50% to 16.7%) did not significantly affect the release of camphor. The content of IBOMA decreased from 50% to 16.7%, the antifouling performance of the resin system appeared slightly reduced. In addition, rosin could help regulate the release rate of the resin system to desorb camphor slowly in water in a controlled manner. Furthermore, the antifouling capability of as-prepared samples was evaluated via algae suppression experiments and marine field tests. This study highlighted the environmentally friendly antifouling coating as a potential candidate and efficient strategy to prohibit biofouling in seawater.
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Affiliation(s)
- Jiankun Hu
- Zhejiang Ocean Development Research Institute, No. 10, Tiyu Road, Lincheng, Zhoushan, 316021, China
| | - Baoku Sun
- Zhejiang Ocean Development Research Institute, No. 10, Tiyu Road, Lincheng, Zhoushan, 316021, China
| | - Haichun Zhang
- Zhejiang Ocean Development Research Institute, No. 10, Tiyu Road, Lincheng, Zhoushan, 316021, China
| | - Ading Lu
- Zhejiang Ocean Development Research Institute, No. 10, Tiyu Road, Lincheng, Zhoushan, 316021, China
| | - Huiqiu Zhang
- Institute of Innovation & Application, Zhejiang Ocean University, No. 1 Haida South Rd, Lincheng, Changzhi Island, Zhoushan, 316022, China
| | - Hailong Zhang
- Institute of Innovation & Application, Zhejiang Ocean University, No. 1 Haida South Rd, Lincheng, Changzhi Island, Zhoushan, 316022, China.
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Viju N, Punitha SMJ, Satheesh S. Antibiofilm activity of symbiotic Bacillus species associated with marine gastropods. ANN MICROBIOL 2020. [DOI: 10.1186/s13213-020-01554-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Abstract
Purpose
Generally, symbiotic marine bacteria are renowned for the synthesis of compounds with bioactive properties, and this has been documented in many previous studies. Therefore, the present study was aimed to isolate novel bacterial symbionts of gastropods that have the ability to synthesize bioactive compounds. These bioactive compounds could be used effectively as antibiofilm agents in order to overcome the problems associated with biofilm.
Methods
The bacteria associated with the surface of marine gastropods were isolated and characterized. Following this, the bacterial metabolites were extracted and their antibiofilm effect was evaluated on biofilm-forming bacteria on artificial substrates. Moreover, the biofilm-forming bacterium Alteromonas sp. was treated with the extracts of symbiotic bacteria in order to evaluate the influence of extracts over the synthesis of extracellular polymeric substance (EPS). Besides, the biologically active chemical constituents of the extracts were separated using thin-layer chromatography and subjected to gas chromatography and mass spectrometry (GC-MS) analysis for characterization.
Results
Three bacterial strains belonging to the species Bacillus firmus, Bacillus cereus and Bacillus subtilis were identified from the bacterial community associated with the gastropods. The antibiofilm assays revealed that the extract of three symbiotic bacteria significantly (p < 0.05) reduced the biofilm formation by the marine bacterium Alteromonas sp. on artificial materials. Also, the EPS synthesis by Alteromonas sp. was significantly inhibited due to symbiotic bacterial extract treatment. The chemical composition of the bioactive fraction isolated from the symbiotic bacteria extract revealed that most of the detected compounds were belonging to aromatic acid, fatty acid and carboxylic acid.
Conclusion
The results of this study clearly revealed that the bacteria belonging to the above listed Bacillus species can be considered as a promising source of natural antibiofilm agents.
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Antibiofouling potential of 1-alkyl-3-methylimidazolium ionic liquids: Studies against biofouling barnacle larvae. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112497] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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The Interaction of Biofoulants and Calcareous Deposits on Corrosion Performance of Q235 in Seawater. MATERIALS 2020; 13:ma13040850. [PMID: 32069945 PMCID: PMC7078610 DOI: 10.3390/ma13040850] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 01/03/2020] [Accepted: 02/07/2020] [Indexed: 11/18/2022]
Abstract
An understanding of the interaction of calcareous deposits and biofoulants on the corrosion performance of steel during the fouling stage is both interesting and necessary. So, the effects of these factors on Q235 carbon steel were investigated and discussed for 20 weeks under real ocean conditions. The results indicate that calcareous deposits are favorable for the attachment of marine microorganisms. However, macroorganisms prefer adhering directly to the substrate. The generations of calcareous deposits have priority over the biofilm attachment under the condition of cathodic protection. Calcareous deposits can prevent steel against corrosion for four weeks without cathodic protection.
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Dobretsov S, Rittschof D. Love at First Taste: Induction of Larval Settlement by Marine Microbes. Int J Mol Sci 2020; 21:ijms21030731. [PMID: 31979128 PMCID: PMC7036896 DOI: 10.3390/ijms21030731] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 01/20/2020] [Indexed: 02/07/2023] Open
Abstract
Marine biofilms are composed of many species of bacteria, unicellular algae, and protozoa. Biofilms can induce, inhibit, or have no effect on settlement of larvae and spores of algae. In this review, we focus on induction of larval settlement by marine bacteria and unicellular eukaryotes and review publications from 2010 to September 2019. This review provides insights from meta-analysis on what is known about the effect of marine biofilms on larval settlement. Of great interest is the impact of different components of marine biofilms, such as bacteria and diatoms, extracellular polymeric substances, quorum sensing signals, unique inductive compounds, exoenzymes, and structural protein degradation products on larval settlement and metamorphosis. Molecular aspects of larval settlement and impact of climate change are reviewed and, finally, potential areas of future investigations are provided.
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Affiliation(s)
- Sergey Dobretsov
- Centre of Excellence in Marine Biotechnology, Sultan Qaboos University, Al Khoud 123 P.O. Box 50, Muscat 123, Oman
- Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al Khoud 123 P.O. Box 34, Muscat 123, Oman
- Correspondence:
| | - Daniel Rittschof
- Marine Science and Conservation, Marine Laboratory, Nicholas School, Duke University, 135 Duke Marine Lab Road, Beaufort, NC 28516, USA;
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Antifouling Napyradiomycins from Marine-Derived Actinomycetes Streptomyces aculeolatus. Mar Drugs 2020; 18:md18010063. [PMID: 31963732 PMCID: PMC7024211 DOI: 10.3390/md18010063] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 01/20/2023] Open
Abstract
The undesired attachment of micro and macroorganisms on water-immersed surfaces, known as marine biofouling, results in severe prevention and maintenance costs (billions €/year) for aquaculture, shipping and other industries that rely on coastal and off-shore infrastructures. To date, there are no sustainable, cost-effective and environmentally safe solutions to address this challenging phenomenon. Therefore, we investigated the antifouling activity of napyradiomycin derivatives that were isolated from actinomycetes from ocean sediments collected off the Madeira Archipelago. Our results revealed that napyradiomycins inhibited ≥80% of the marine biofilm-forming bacteria assayed, as well as the settlement of Mytilus galloprovincialis larvae (EC50 < 5 µg/ml and LC50/EC50 >15), without viability impairment. In silico prediction of toxicity end points are of the same order of magnitude of standard approved drugs and biocides. Altogether, napyradiomycins disclosed bioactivity against marine micro and macrofouling organisms, and non-toxic effects towards the studied species, displaying potential to be used in the development of antifouling products.
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Bovio E, Fauchon M, Toueix Y, Mehiri M, Varese GC, Hellio C. The Sponge-Associated Fungus Eurotium chevalieri MUT 2316 and its Bioactive Molecules: Potential Applications in the Field of Antifouling. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2019; 21:743-752. [PMID: 31494811 DOI: 10.1007/s10126-019-09920-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 08/20/2019] [Indexed: 06/10/2023]
Abstract
The need for new environmentally friendly antifouling and the observation that many marine organisms have developed strategies to keep their surface free of epibionts has stimulated the search for marine natural compounds with antifouling activities. Sponges and in particular fungi associated with them represent one of the most appropriate sources of defence molecules and could represent a promising biomass for the supply of new antifouling compounds. The objective of this work was therefore to evaluate the antifouling potency of 7 compounds isolated from the sponge derived fungus Eurotium chevalieri MUT 2316. The assessment of their activity targeted the inhibition of the adhesion and/or growth of selected marine bacteria (5) and microalgae (5), as well as the inhibition of the mussel's byssus thread formation (tyrosinase activity). The 7 compounds showed bioactivity, with various levels of selectivity for species. Cyclo-L-Trp-L-Ala was the most promising active compound, and led to the inhibition, at very low concentrations (0.001 μg ml-1 in 61.5% of cases), of adhesion and growth of all the microalgae, of selected bacteria, and towards the inhibition of tyrosinase. Promising results were also obtained for echinulin, neoechinulin A, dihydroauroglaucin and flavoglaucin, respectively, leading to inhibition of adhesion and/or growth of 9, 7, 8 and 8 microfouling species at various concentrations.
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Affiliation(s)
- Elena Bovio
- Mycotheca Universitatis Taurinensis, Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Turin, Italy
- CNRS, Nice Institute of Chemistry, UMR 7272, Marine Natural Products Team, University Nice Côte d'Azur, 60103, Nice, France
| | - Marilyne Fauchon
- University Brest, CNRS, IRD, Ifremer, LEMAR, Institut Universitaire Européen de la Mer, F-29280, Plouzané, France
| | - Yannick Toueix
- University Brest, CNRS, IRD, Ifremer, LEMAR, Institut Universitaire Européen de la Mer, F-29280, Plouzané, France
| | - Mohamed Mehiri
- CNRS, Nice Institute of Chemistry, UMR 7272, Marine Natural Products Team, University Nice Côte d'Azur, 60103, Nice, France
| | - Giovanna Cristina Varese
- Mycotheca Universitatis Taurinensis, Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Turin, Italy.
| | - Claire Hellio
- University Brest, CNRS, IRD, Ifremer, LEMAR, Institut Universitaire Européen de la Mer, F-29280, Plouzané, France.
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Isolation, characterization and identification of antibiofouling metabolite from mangrove derived Streptomyces sampsonii PM33. Sci Rep 2019; 9:12975. [PMID: 31506555 PMCID: PMC6736841 DOI: 10.1038/s41598-019-49478-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 07/22/2019] [Indexed: 11/08/2022] Open
Abstract
In this study, we report the production, bioassay guided isolation and identification of antibiofouling metabolite from mangrove derived actinobacterium, Streptomyces sampsonii (PM33). The actinobacterial strain PM33 yields maximum amount of antifouling compounds through agar surface fermentation. In optimization, carbohydrates such as glucose, fructose and xylose, are suitable for maximum production of the active compound. In addition, other compounds such as malt extract, glutamine, and sodium chloride concentrations (2.5, 5 and 7.5%) and parameters such as pH 7.0 and temperature range 30 °C to 40 °C enhanced the production of antifouling metabolite. The antifouling metabolite was extracted in ethyl acetate. TLC and bioautography was used to separate and detect the antifouling metabolite present in the crude extract. The physico chemical features revealed that the antifouling metabolite PM33 – B as taxifolin (C15H12O7). The purified taxifolin was found to be active against biofouling bacteria, algal spore germination and mollusc foot adherence, respectively. Toxicity nature of taxifolin was also determined by adopting zebrafish embryos. The taxifolin isolated from mangrove-derived Streptomyces sampsonii PM33 is a promising candidate for the development of eco-friendly antifouling preparation.
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Agostini VO, Macedo AJ, Muxagata E, da Silva MV, Pinho GLL. Natural and non-toxic products from Fabaceae Brazilian plants as a replacement for traditional antifouling biocides: an inhibition potential against initial biofouling. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:27112-27127. [PMID: 31317435 DOI: 10.1007/s11356-019-05744-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/11/2019] [Indexed: 06/10/2023]
Abstract
In this study, we screened for the antifouling activity of 15 species plant extracts from Brazilian the Brazilian Caatinga Fabaceae against the initial colonization of natural marine bacterial biofilm. We also investigated the potential toxicity of extracts against planktonic and benthic non-target organisms. Aqueous extracts of plants collected in the Caatinga biome (PE, Brazil) were prepared and tested at different concentration levels (0, 0.5, 1, 2, 4, and 8 mg mL-1). Natural marine bacterial consortium was inoculated in multi-well plates and incubated with the different treatments for 48 h. The biofilm and planktonic bacterial density and biomass inhibition were evaluated along with biofilm biomass eradication. The extracts that showed the highest bacterial biofilm inhibition were evaluated for toxicity against microalgae and crustaceans. The biofilm and planktonic bacterial inhibition potential were evaluated through flow cytometry and spectrophotometry. The selected treatments were evaluated for their toxicity using the microalgae Chaetoceros calcitrans, the copepod Nitokra sp., and the brine shrimp Artemia salina as bioindicators. Our work demonstrates the biotechnological potential of Fabaceae plant compounds as a safe antifouling alternative. Anadenanthera colubrina var. cebil fruits and Apuleia leiocarpa leaf extracts showed antibiofilm activity (≥ 80%), while Myroxylon peruiferum and Dioclea grandiflora leaf extracts showed antibiotic activity. These extracts were safe to planktonic and benthic non-target organisms. The results of this study point to potential substitutes to highly toxic antifouling paints and shed light on the prospect of a yet to be explored biome for more sustainable alternatives in biofouling research.
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Affiliation(s)
- Vanessa Ochi Agostini
- Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática - Instituto de Oceanografia da Universidade Federal do Rio Grande (FURG), Caixa Postal, 474, Rio Grande, RS, CEP: 96203-900, Brazil.
- Programa de Pós-graduação em Oceanologia (PPGO), Programa Nacional de Pós-Doutorado da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (PNPD-CAPES), Rio Grande, RS, Brazil.
| | - Alexandre José Macedo
- Laboratório de Biofilmes e Diversidade Microbiana - Faculdade de Farmácia e Centro de Biotecnologia da Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, Bairro Azenha, Porto Alegre, RS, 90610-000, Brazil
| | - Erik Muxagata
- Laboratório de Zooplâncton - Instituto de Oceanografia da Universidade Federal do Rio Grande (FURG), Av. Itália, Km 8, Caixa Postal, 474, Rio Grande, RS, 96203-900, Brazil
| | - Márcia Vanusa da Silva
- Laboratório de Produtos Naturais - Departamento de Bioquímica da Universidade Federal de Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, PE, 50670-901, Brazil
| | - Grasiela Lopes Leães Pinho
- Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática - Instituto de Oceanografia da Universidade Federal do Rio Grande (FURG), Caixa Postal, 474, Rio Grande, RS, CEP: 96203-900, Brazil
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Suvega T, Arunkumar K. Probiotic bacteria promote the growth of associating host(red seaweed, Gracilaria edulis) also synthesize antibacterial protein. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Saxena P, Joshi Y, Rawat K, Bisht R. Biofilms: Architecture, Resistance, Quorum Sensing and Control Mechanisms. Indian J Microbiol 2019; 59:3-12. [PMID: 30728625 PMCID: PMC6328408 DOI: 10.1007/s12088-018-0757-6] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 08/08/2018] [Indexed: 12/11/2022] Open
Abstract
Biofilm is a mode of living employed by many pathogenic and environmental microbes to proliferate as multicellular aggregates on inert inanimate or biological substrates. Several microbial diseases are associated with biofilms that pose challenges in treatment with antibiotics targeting individual cells. Bacteria in biofilms secrete exopolymeric substances that contribute to architectural stability and provide a secure niche to inhabiting cells. Quorum sensing (QS) plays essential roles in biofilm development. Pathogenic bacteria in biofilms utilize QS mechanisms to activate virulence and develop antibiotic resistance. This review is a brief overview of biofilm research and provides updates on recent understandings on biofilm development, antibiotic resistance and transmission, and importance of QS mechanisms. Strategies to combat biofilm associated diseases including anti-biofilm substances, quorum quenching molecules, bio-surfactants and competitive inhibitors are briefly discussed. The review concludes with updates on recent approaches utilized for biofilm inhibition and provides perspectives for further research in the field.
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Affiliation(s)
- Priti Saxena
- Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, 110021 India
| | - Yogesh Joshi
- Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, 110021 India
| | - Kartik Rawat
- Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, 110021 India
| | - Renu Bisht
- Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, 110021 India
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Raimundo I, Silva SG, Costa R, Keller-Costa T. Bioactive Secondary Metabolites from Octocoral-Associated Microbes-New Chances for Blue Growth. Mar Drugs 2018; 16:E485. [PMID: 30518125 PMCID: PMC6316421 DOI: 10.3390/md16120485] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 11/25/2018] [Accepted: 11/29/2018] [Indexed: 12/14/2022] Open
Abstract
Octocorals (Cnidaria, Anthozoa Octocorallia) are magnificent repositories of natural products with fascinating and unusual chemical structures and bioactivities of interest to medicine and biotechnology. However, mechanistic understanding of the contribution of microbial symbionts to the chemical diversity of octocorals is yet to be achieved. This review inventories the natural products so-far described for octocoral-derived bacteria and fungi, uncovering a true chemical arsenal of terpenes, steroids, alkaloids, and polyketides with antibacterial, antifungal, antiviral, antifouling, anticancer, anti-inflammatory, and antimalarial activities of enormous potential for blue growth. Genome mining of 15 bacterial associates (spanning 12 genera) cultivated from Eunicella spp. resulted in the identification of 440 putative and classifiable secondary metabolite biosynthetic gene clusters (BGCs), encompassing varied terpene-, polyketide-, bacteriocin-, and nonribosomal peptide-synthase BGCs. This points towards a widespread yet uncharted capacity of octocoral-associated bacteria to synthetize a broad range of natural products. However, to extend our knowledge and foster the near-future laboratory production of bioactive compounds from (cultivatable and currently uncultivatable) octocoral symbionts, optimal blending between targeted metagenomics, DNA recombinant technologies, improved symbiont cultivation, functional genomics, and analytical chemistry are required. Such a multidisciplinary undertaking is key to achieving a sustainable response to the urgent industrial demand for novel drugs and enzyme varieties.
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Affiliation(s)
- Inês Raimundo
- Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico (IST), Universidade de Lisboa, 1049-001 Lisbon, Portugal.
| | - Sandra G Silva
- Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico (IST), Universidade de Lisboa, 1049-001 Lisbon, Portugal.
| | - Rodrigo Costa
- Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico (IST), Universidade de Lisboa, 1049-001 Lisbon, Portugal.
| | - Tina Keller-Costa
- Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico (IST), Universidade de Lisboa, 1049-001 Lisbon, Portugal.
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Almeida JR, Moreira J, Pereira D, Pereira S, Antunes J, Palmeira A, Vasconcelos V, Pinto M, Correia-da-Silva M, Cidade H. Potential of synthetic chalcone derivatives to prevent marine biofouling. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:98-106. [PMID: 29936172 DOI: 10.1016/j.scitotenv.2018.06.169] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 06/06/2018] [Accepted: 06/13/2018] [Indexed: 06/08/2023]
Abstract
Biofouling represents a major economic, environmental and health concern for which new eco-friendly solutions are needed. International legislation has restricted the use of biocidal-based antifouling coatings, and increasing efforts have been applied in the search for environmentally friendly antifouling agents. This research work deals with the assessment of the interest of a series of synthetic chalcone derivatives for antifouling applications. Sixteen chalcone derivatives were synthesized with moderate yields (38-85%). Antifouling bioactivity of these compounds was assessed at different levels of biological organization using both anti-macrofouling and anti-microfouling bioassays, namely an anti-settlement assay using mussel (Mytilus galloprovincialis) larvae, as well as marine bacteria and microalgal biofilms growth inhibition bioassays. Results showed that three compounds (11, 12, and 16) were particularly active against the settlement of mussel larvae (EC50 7.24-34.63 μM), being compounds 12 and 16 also able to inhibit the growth of microfouling species (EC50 4.09-20.31 μM). Moreover, the most potent compounds 12 and 16 were found to be non-toxic to the non-target species Artemia salina (<10% mortality at 25 μM). A quantitative structure-activity relationship model predicted that descriptors describing the ability of molecules to form hydrogen bonds and encoding the shape, branching ratio and constitutional diversity of the molecule were implied in the antifouling activity against the settlement of mussel larvae. This work elucidates for the first time the relevance of synthesizing chalcone derivatives to generate new non-toxic products to prevent marine biofouling.
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Affiliation(s)
- J R Almeida
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - J Moreira
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - D Pereira
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - S Pereira
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - J Antunes
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, P 4069-007 Porto, Portugal
| | - A Palmeira
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - V Vasconcelos
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, P 4069-007 Porto, Portugal
| | - M Pinto
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - M Correia-da-Silva
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal.
| | - H Cidade
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
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Feng DQ, He J, Chen SY, Su P, Ke CH, Wang W. The Plant Alkaloid Camptothecin as a Novel Antifouling Compound for Marine Paints: Laboratory Bioassays and Field Trials. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2018; 20:623-638. [PMID: 29860659 DOI: 10.1007/s10126-018-9834-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 05/16/2018] [Indexed: 06/08/2023]
Abstract
The extensive use of copper and booster biocides in antifouling (AF) paints has raised environmental concerns and the need to develop new AF agents. In the present study, 18 alkaloids derived from terrestrial plants were initially evaluated for AF activity using laboratory bioassays with the bryozoan Bugula neritina and the barnacle Balanus albicostatus. The results showed that 4 of the 18 alkaloids were effective in inhibiting larval settlement of B. neritina, with an EC50 range of 6.18 to 43.11 μM, and 15 of the 18 alkaloids inhibited larval settlement of B. albicostatus, with EC50 values ranging from 1.18 to 67.58 μM. Field trials that incorporated five alkaloids respectively into paints with 20% w/w indicated an in situ AF efficiency of evodiamine, strychnine, camptothecin (CPT), and cepharanthine, with the most potent compound being CPT, which also exhibited stronger AF efficiency than the commercial antifoulants cuprous oxide and zinc pyrithione in the field over a period of 12 months. Further field trials with different CPT concentrations (0.1 to 20% w/w) in the paints suggested a concentration-dependent AF performance in the natural environment, and the effective concentrations to significantly inhibit settlement of biofoulers in the field were ≥ 0.5% w/w (the efficiency of 0.5% w/w lasted for 2 months). Moreover, CPT toxicity against the crustacean Artemia salina, the planktonic microalgae Phaeodactylum tricornutum and Isochrysis galbana, was examined. The results showed that 24 h LC50 of CPT against A. salina was 20.75 μM, and 96 h EC50 (growth inhibition) values of CPT to P. tricornutum and I. galbana were 55.81 and 6.29 μM, respectively, indicating that CPT was comparatively less toxic than several commercial antifoulants previously reported. Our results suggest the novel potential application of CPT as an antifoulant.
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Affiliation(s)
- Dan Qing Feng
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China.
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen University, Xiamen, 361102, People's Republic of China.
| | - Jian He
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Si Yu Chen
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Pei Su
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Cai Huan Ke
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Wei Wang
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen University, Xiamen, 361102, People's Republic of China
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Pinteus S, Lemos MF, Alves C, Neugebauer A, Silva J, Thomas OP, Botana LM, Gaspar H, Pedrosa R. Marine invasive macroalgae: Turning a real threat into a major opportunity - the biotechnological potential of Sargassum muticum and Asparagopsis armata. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.06.018] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Kiran GS, Sekar S, Ramasamy P, Thinesh T, Hassan S, Lipton AN, Ninawe AS, Selvin J. Marine sponge microbial association: Towards disclosing unique symbiotic interactions. MARINE ENVIRONMENTAL RESEARCH 2018; 140:169-179. [PMID: 29935729 DOI: 10.1016/j.marenvres.2018.04.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 03/01/2018] [Accepted: 04/25/2018] [Indexed: 06/08/2023]
Abstract
Sponges are sessile benthic filter-feeding animals, which harbor numerous microorganisms. The enormous diversity and abundance of sponge associated bacteria envisages sponges as hot spots of microbial diversity and dynamics. Many theories were proposed on the ecological implications and mechanism of sponge-microbial association, among these, the biosynthesis of sponge derived bioactive molecules by the symbiotic bacteria is now well-indicated. This phenomenon however, is not exhibited by all marine sponges. Based on the available reports, it has been well established that the sponge associated microbial assemblages keep on changing continuously in response to environmental pressure and/or acquisition of microbes from surrounding seawater or associated macroorganisms. In this review, we have discussed nutritional association of sponges with its symbionts, interaction of sponges with other eukaryotic organisms, dynamics of sponge microbiome and sponge-specific microbial symbionts, sponge-coral association etc.
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Affiliation(s)
- G Seghal Kiran
- Department of Food Science and Technology, Pondicherry University, Puducherry, 605014, India
| | - Sivasankari Sekar
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Pasiyappazham Ramasamy
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | | | - Saqib Hassan
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Anuj Nishanth Lipton
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - A S Ninawe
- Department of Biotechnology, Ministry of Science and Technology, New Delhi, India
| | - Joseph Selvin
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India.
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41
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Brooke DG, Cervin G, Champeau O, Harwood DT, Pavia H, Selwood AI, Svenson J, Tremblay LA, Cahill PL. Antifouling activity of portimine, select semisynthetic analogues, and other microalga-derived spirocyclic imines. BIOFOULING 2018; 34:950-961. [PMID: 30539667 DOI: 10.1080/08927014.2018.1514461] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/13/2018] [Accepted: 08/16/2018] [Indexed: 06/09/2023]
Abstract
A range of natural products from marine invertebrates, bacteria and fungi have been assessed as leads for nature-inspired antifouling (AF) biocides, but little attention has been paid to microalgal-derived compounds. This study assessed the AF activity of the spirocyclic imine portimine (1), which is produced by the benthic mat-forming dinoflagellate Vulcanodinium rugosum. Portimine displayed potent AF activity in a panel of four macrofouling bioassays (EC50 0.06-62.5 ng ml-1), and this activity was distinct from that of the related compounds gymnodimine-A (2), 13-desmethyl spirolide C (3), and pinnatoxin-F (4). The proposed mechanism of action for portimine is induction of apoptosis, based on the observation that portimine inhibited macrofouling organisms at developmental stages known to involve apoptotic processes. Semisynthetic modification of select portions of the portimine molecule was subsequently undertaken. Observed changes in bioactivity of the resulting semisynthetic analogues of portimine were consistent with portimine's unprecedented 5-membered imine ring structure playing a central role in its AF activity.
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Affiliation(s)
| | - Gunnar Cervin
- b Department of Marine Sciences-Tjärnö , University of Gothenburg , Strömstad , Sweden
| | | | | | - Henrik Pavia
- b Department of Marine Sciences-Tjärnö , University of Gothenburg , Strömstad , Sweden
| | | | - Johan Svenson
- c Department of Chemistry, Material and Surfaces , Research Institutes of Sweden , Borås , Sweden
| | - Louis A Tremblay
- a Cawthron Institute , Nelson , New Zealand
- d School of Biological Sciences , University of Auckland , Auckland , New Zealand
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Adnan M, Alshammari E, Patel M, Amir Ashraf S, Khan S, Hadi S. Significance and potential of marine microbial natural bioactive compounds against biofilms/biofouling: necessity for green chemistry. PeerJ 2018; 6:e5049. [PMID: 29967730 PMCID: PMC6026461 DOI: 10.7717/peerj.5049] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 06/01/2018] [Indexed: 12/17/2022] Open
Abstract
Natural products from the unique environments of sea water and oceans represent a largely unfamiliar source for isolation of new microbes, which are potent producers of secondary bioactive metabolites. These unique life-forms from the marine ecosphere have served as an important source of drugs since ancient times and still offer a valuable resource for novel findings by providing remedial treatments. Therefore, it can be expected that many naturally bioactive marine microbial compounds with novel structures and bioactivities against those from terrestrial environments may be found among marine metabolites. Biofilms in aquatic environment possess serious problems to naval forces and oceanic industries around the globe. Current anti-biofilm or anti-biofouling technology is based on the use of toxic substances that can be harmful to their surrounding natural locales. Comprehensive research has been done to examine the bioactive potential of marine microbes. Results are remarkably varied and dynamic, but there is an urgent need for bioactive compounds with environmentally friendly or "green" chemical activities. Marine microbes have the potential as upcoming and promising source of non-toxic compounds with sustainable anti-biofouling/anti-biofilm properties as they can produce substances that can inhibit not only the chemical components required for biofilm production but also the attachment, microorganism growth, and/or cell-cell communication.
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Affiliation(s)
- Mohd Adnan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail, Saudi Arabia
| | - Eyad Alshammari
- Department of Clinical Nutrition, College of Applied Medical Sciences, University of Hail, Hail, Saudi Arabia
| | - Mitesh Patel
- Department of Biosciences, Bapalal Vaidhya Botanical Research Centre, Veer Narmad South Gujarat University, Surat, India
| | - Syed Amir Ashraf
- Department of Clinical Nutrition, College of Applied Medical Sciences, University of Hail, Hail, Saudi Arabia
| | - Saif Khan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail, Saudi Arabia
| | - Sibte Hadi
- School of Forensic and Applied Sciences, University of Central Lancashire, Preston, UK
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Wang J, Yu X, Wang Y, Pan X, Li D. Detection of viability of micro-algae cells by optofluidic hologram pattern. BIOMICROFLUIDICS 2018; 12:024111. [PMID: 29657655 PMCID: PMC5876039 DOI: 10.1063/1.5021179] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 03/16/2018] [Indexed: 06/08/2023]
Abstract
A rapid detection of micro-algae activity is critical for analysis of ship ballast water. A new method for detecting micro-algae activity based on lens-free optofluidic holographic imaging is presented in this paper. A compact lens-free optofluidic holographic imaging device was developed. This device is mainly composed of a light source, a small through-hole, a light propagation module, a microfluidic chip, and an image acquisition and processing module. The excited light from the light source passes through a small hole to reach the surface of the micro-algae cells in the microfluidic chip, and a holographic image is formed by the diffraction light of surface of micro-algae cells. The relation between the characteristics in the hologram pattern and the activity of micro-algae cells was investigated by using this device. The characteristics of the hologram pattern were extracted to represent the activity of micro-algae cells. To demonstrate the accuracy of the presented method and device, four species of micro-algae cells were employed as the test samples and the comparison experiments between the alive and dead cells of four species of micro-algae were conducted. The results show that the developed method and device can determine live/dead microalgae cells accurately.
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Affiliation(s)
- Junsheng Wang
- College of Information and Science Technology, Dalian Maritime University, Dalian 116026, China
| | - Xiaomei Yu
- College of Information and Science Technology, Dalian Maritime University, Dalian 116026, China
| | - Yanjuan Wang
- College of Information and Science Technology, Dalian Maritime University, Dalian 116026, China
| | - Xinxiang Pan
- College of Marine Engineering, Dalian Maritime University, Dalian 116026, China
| | - Dongqing Li
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, Ontario N2L3G1, Canada
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Saha M, Goecke F, Bhadury P. Minireview: algal natural compounds and extracts as antifoulants. JOURNAL OF APPLIED PHYCOLOGY 2017; 30:1859-1874. [PMID: 29899600 PMCID: PMC5982446 DOI: 10.1007/s10811-017-1322-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 10/17/2017] [Accepted: 10/17/2017] [Indexed: 05/02/2023]
Abstract
Marine biofouling is a paramount phenomenon in the marine environment and causes serious problems to maritime industries worldwide. Marine algae are known to produce a wide variety of chemical compounds with antibacterial, antifungal, antialgal, and anti-macrofouling properties, inhibiting the settlement and growth of other marine fouling organisms. Significant investigations and progress have been made in this field in the last two decades and several antifouling extracts and compounds have been isolated from micro- and macroalgae. In this minireview, we have summarized and evaluated antifouling compounds isolated and identified from macroalgae and microalgae between January 2010 and June 2016. Future directions for their commercialization through metabolic engineering and industrial scale up have been discussed. Upon comparing biogeographical regions, investigations from Southeast Asian waters were found to be rather scarce. Thus, we have also discussed the need to conduct more chemical ecology based research in relatively less explored areas with high algal biodiversity like Southeast Asia.
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Affiliation(s)
- Mahasweta Saha
- Benthic Ecology, Helmholtz Center for Ocean Research, Düsternbrooker weg, 24105 Kiel, Germany
- Present Address: School of Biological Science, University of Essex, Colchester, CO 43 SQ, UK
| | - Franz Goecke
- Department of Plant and Environmental Science (IPV), Norwegian University of Life Sciences (NMBU), Ås, Norway
| | - Punyasloke Bhadury
- Integrative Taxonomy and Microbial Ecology Research Group, Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246 India
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45
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Diversity and Bioactivity of Marine Bacteria Associated with the Sponges Candidaspongia flabellata and Rhopaloeides odorabile from the Great Barrier Reef in Australia. DIVERSITY-BASEL 2017. [DOI: 10.3390/d9030039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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46
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Zhang Y, Zhao W, Chen Z, Liu Z, Cao H, Zhou C, Cui P. Influence of biomimetic boundary structure on the antifouling performances of siloxane modified resin coatings. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.05.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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47
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Wang KL, Wu ZH, Wang Y, Wang CY, Xu Y. Mini-Review: Antifouling Natural Products from Marine Microorganisms and Their Synthetic Analogs. Mar Drugs 2017; 15:E266. [PMID: 28846626 PMCID: PMC5618405 DOI: 10.3390/md15090266] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 07/02/2017] [Accepted: 07/12/2017] [Indexed: 12/18/2022] Open
Abstract
Biofouling causes huge economic loss and generates serious ecological issues worldwide. Marine coatings incorporated with antifouling (AF) compounds are the most common practices to prevent biofouling. With a ban of organotins and an increase in the restrictions regarding the use of other AF alternatives, exploring effective and environmentally friendly AF compounds has become an urgent demand for marine coating industries. Marine microorganisms, which have the largest biodiversity, represent a rich and important source of bioactive compounds and have many medical and industrial applications. This review summarizes 89 natural products from marine microorganisms and 13 of their synthetic analogs with AF EC50 values ≤ 25 μg/mL from 1995 (the first report about marine microorganism-derived AF compounds) to April 2017. Some compounds with the EC50 values < 5 μg/mL and LC50/EC50 ratios > 50 are highlighted as potential AF compounds, and the preliminary analysis of structure-relationship (SAR) of these compounds is also discussed briefly. In the last part, current challenges and future research perspectives are proposed based on opinions from many previous reviews. To provide clear guidance for the readers, the AF compounds from microorganisms and their synthetic analogs in this review are categorized into ten types, including fatty acids, lactones, terpenes, steroids, benzenoids, phenyl ethers, polyketides, alkaloids, nucleosides and peptides. In addition to the major AF compounds which targets macro-foulers, this review also includes compounds with antibiofilm activity since micro-foulers also contribute significantly to the biofouling communities.
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Affiliation(s)
- Kai-Ling Wang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266200, China.
| | - Ze-Hong Wu
- The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China.
- Integrated Chinese and Western Medicine Postdoctoral research station, Jinan University, Guangzhou 510632, China.
| | - Yu Wang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
| | - Chang-Yun Wang
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266200, China.
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China.
| | - Ying Xu
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
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Dahms HU, Dobretsov S. Antifouling Compounds from Marine Macroalgae. Mar Drugs 2017; 15:md15090265. [PMID: 28846625 PMCID: PMC5618404 DOI: 10.3390/md15090265] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 06/29/2017] [Accepted: 07/12/2017] [Indexed: 12/14/2022] Open
Abstract
Marine macroalgae produce a wide variety of biologically-active metabolites that have been developed into commercial products, such as antibiotics, immunosuppressive, anti-inflammatory, cytotoxic agents, and cosmetic products. Many marine algae remain clean over longer periods of time, suggesting their strong antifouling potential. Isolation of biogenic compounds and the determination of their structure could provide leads for the development of environmentally-friendly antifouling paints. Isolated substances with potent antifouling activity belong to fatty acids, lipopeptides, amides, alkaloids, lactones, steroids, terpenoids, and pyrroles. It is unclear as yet to what extent symbiotic microorganisms are involved in the synthesis of these compounds. Algal secondary metabolites have the potential to be produced commercially using genetic and metabolic engineering techniques. This review provides an overview of publications from 2010 to February 2017 about antifouling activity of green, brown, and red algae. Some researchers were focusing on antifouling compounds of brown macroalgae, while metabolites of green algae received less attention. Several studies tested antifouling activity against bacteria, microalgae and invertebrates, but in only a few studies was the quorum sensing inhibitory activity of marine macroalgae tested. Rarely, antifouling compounds from macroalgae were isolated and tested in an ecologically-relevant way.
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Affiliation(s)
- Hans Uwe Dahms
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, No. 100, Shin-Chuan 1st Road, Kaohsiung 80708, Taiwan.
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, No. 70, Lienhai Road, Kaohsiung 80424, Taiwan.
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| | - Sergey Dobretsov
- Center of Excellence in Marine Biotechnology, Sultan Qaboos University, Muscat 123, Oman.
- Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat 123, Oman.
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Norcy TL, Niemann H, Proksch P, Linossier I, Vallée-Réhel K, Hellio C, Faÿ F. Anti-Biofilm Effect of Biodegradable Coatings Based on Hemibastadin Derivative in Marine Environment. Int J Mol Sci 2017; 18:E1520. [PMID: 28703765 PMCID: PMC5536010 DOI: 10.3390/ijms18071520] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/03/2017] [Accepted: 07/07/2017] [Indexed: 12/17/2022] Open
Abstract
Dibromohemibastadin-1 (DBHB) is an already known potent inhibitor of blue mussel phenoloxidase (which is a key enzyme involved in bioadhesion). Within this study, the potentiality of DBHB against microfouling has been investigated. The activity of DBHB was evaluated on key strains of bacteria and microalgae involved in marine biofilm formation and bioassays assessing impact on growth, adhesion and biofilm formation were used. To assess the efficiency of DBHB when included in a matrix, DBHB varnish was prepared and the anti-microfouling activity of coatings was assessed. Both in vitro and in situ immersions were carried out. Confocal Laser Scanning Microscopy (CLSM) was principally used to determine the biovolume and average thickness of biofilms developed on the coatings. Results showed an evident efficiency of DBHB as compound and varnish to reduce the biofilm development. The mode of action seems to be based principally on a perturbation of biofilm formation rather than on a biocidal activity in the tested conditions.
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Affiliation(s)
- Tiffany Le Norcy
- Laboratoire de Biotechnologie et Chimie Marines, Institut Universitaire Européen de la Mer, Université de Bretagne-Sud, 56100 Lorient, France.
| | - Hendrik Niemann
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany.
| | - Peter Proksch
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany.
| | - Isabelle Linossier
- Laboratoire de Biotechnologie et Chimie Marines, Institut Universitaire Européen de la Mer, Université de Bretagne-Sud, 56100 Lorient, France.
| | - Karine Vallée-Réhel
- Laboratoire de Biotechnologie et Chimie Marines, Institut Universitaire Européen de la Mer, Université de Bretagne-Sud, 56100 Lorient, France.
| | - Claire Hellio
- Biodimar, LEMAR UMR 6539, Institut Européen de la Mer, Université de Bretagne Occidentale, 29200 Brest, France.
| | - Fabienne Faÿ
- Laboratoire de Biotechnologie et Chimie Marines, Institut Universitaire Européen de la Mer, Université de Bretagne-Sud, 56100 Lorient, France.
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Jayme MMA, Castro RO, Silva CAM, Silva MM, Carmo FLD, Araujo FVD. Evaluation of the biotechnological potential of bacterioplankton from Niterói coast, RJ. C R Biol 2017; 340:324-329. [DOI: 10.1016/j.crvi.2017.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 05/31/2017] [Accepted: 06/06/2017] [Indexed: 11/29/2022]
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