1
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Schultzhaus J, Hervey J, Fears K, Spillmann C. Proteomic comparison of the organic matrices from parietal and base plates of the acorn barnacle Amphibalanus amphitrite. Open Biol 2024; 14:230246. [PMID: 38806147 DOI: 10.1098/rsob.230246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 02/29/2024] [Indexed: 05/30/2024] Open
Abstract
Acorn barnacles are efficient colonizers on a wide variety of marine surfaces. As they proliferate on critical infrastructure, their settlement and growth have deleterious effects on performance. To address acorn barnacle biofouling, research has focused on the settlement and adhesion processes with the goal of informing the development of novel coatings. This effort has resulted in the discovery and characterization of several proteins found at the adhesive substrate interface, i.e. cement proteins, and a deepened understanding of the function and composition of the biomaterials within this region. While the adhesive properties at the interface are affected by the interaction between the proteins, substrate and mechanics of the calcified base plate, little attention has been given to the interaction between the proteins and the cuticular material present at the substrate interface. Here, the proteome of the organic matrix isolated from the base plate of the acorn barnacle Amphibalanus amphitrite is compared with the chitinous and proteinaceous matrix embedded within A. amphitrite parietal plates. The objective was to gain an understanding of how the basal organic matrix may be specialized for adhesion via an in-depth comparative proteome analysis. In general, the majority of proteins identified in the parietal matrix were also found in the basal organic matrix, including nearly all those grouped in classes of cement proteins, enzymes and pheromones. However, the parietal organic matrix was enriched with cuticle-associated proteins, of which ca 30% of those identified were unique to the parietal region. In contrast, ca 30-40% of the protease inhibitors, enzymes and pheromones identified in the basal organic matrix were unique to this region. Not unexpectedly, nearly 50% of the cement proteins identified in the basal region were significantly distinct from those found in the parietal region. The wider variety of identified proteins in the basal organic matrix indicates a greater diversity of biological function in the vicinity of the substrate interface where several processes related to adhesion, cuticle formation and expansion of the base synchronize to play a key role in organism survival.
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Affiliation(s)
- Janna Schultzhaus
- Center for Bio/Molecular Science & Engineering, Naval Research Laboratory , Washington, DC, USA
| | - Judson Hervey
- Center for Bio/Molecular Science & Engineering, Naval Research Laboratory , Washington, DC, USA
| | - Kenan Fears
- Center for Bio/Molecular Science & Engineering, Naval Research Laboratory , Washington, DC, USA
| | - Christopher Spillmann
- Center for Bio/Molecular Science & Engineering, Naval Research Laboratory , Washington, DC, USA
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2
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Hong H, Deng A, Tang Y, Liu Z. How to identify biofouling species in marine and freshwater. BIOFOULING 2024; 40:130-152. [PMID: 38450626 DOI: 10.1080/08927014.2024.2324008] [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: 09/20/2023] [Accepted: 02/21/2024] [Indexed: 03/08/2024]
Abstract
The identification and management of biofouling remain pressing challenges in marine and freshwater ecosystems, with significant implications for environmental sustainability and industrial operations. This comprehensive review synthesizes the current state-of-the-art in biofouling identification technologies, examining eight prominent methodologies: Microscopy Examination, Molecular Biology, Remote Sensing, Community Involvement, Ecological Methods, Artificial Intelligence, Chemical Analysis, and Macro Photography. Each method is evaluated for its respective advantages and disadvantages, considering factors such as precision, scalability, cost, and data quality. Furthermore, the review identifies current obstacles that inhibit the optimal utilization of these technologies, ranging from technical limitations and high operational costs to issues of data inconsistency and subjectivity. Finally, the review posits a future outlook, advocating for the development of integrated, standardized systems that amalgamate the strengths of individual approaches. Such advancement will pave the way for more effective and sustainable strategies for biofouling identification and management.
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Affiliation(s)
- Heting Hong
- Hubei Meteorological Bureau, Wuhan Regional Climate Center, Wuhan, China
- School of Mechanical Engineering and Automation, Northeastern University, Shenyang, China
| | - Aijuan Deng
- Hubei Meteorological Bureau, Wuhan Regional Climate Center, Wuhan, China
| | - Yang Tang
- Hubei Meteorological Bureau, Wuhan Regional Climate Center, Wuhan, China
| | - Zhixiong Liu
- Hubei Meteorological Bureau, Wuhan Regional Climate Center, Wuhan, China
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3
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Wu Z, Wang Z, Li Z, Hao H, Qi Y, Feng D. Impacts of ocean acidification and warming on the release and activity of the barnacle waterborne settlement pheromone, adenosine. MARINE POLLUTION BULLETIN 2024; 199:115971. [PMID: 38159384 DOI: 10.1016/j.marpolbul.2023.115971] [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: 07/02/2023] [Revised: 12/21/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
The effects of ocean acidification (OA) and warming on the physiological processes of many marine species have been well documented. However, far less is known about the impacts of these global variables on chemical communication. In this study, we identified the barnacle waterborne settlement pheromone (BWSP) of Balanus albicostatus as adenosine (Ado). Our results showed that neither elevated temperature (30 °C vs. ambient 26 °C) nor elevated pCO2 (1000 μatm vs. ambient 400 μatm) significantly affected the release of Ado from B. albicostatus adults. Exposure to elevated temperature and OA did not impair larval cue perception for settlement in B. albicostatus; however, OA inhibited settlement under elevated temperature in the absence/presence of BWSP, and elevated temperature induced larval settlement only in the presence of BWSP under ambient pCO2 condition. These results provided important insights into barnacle aggregation behavior in changing oceans and may help to predict the consequences of climate change on barnacle populations.
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Affiliation(s)
- Zhiwen Wu
- College of Ocean & Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Zhixuan Wang
- College of Ocean & Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Zhuo Li
- College of Ocean & Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Huanhuan Hao
- College of Ocean & Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Yuxuan Qi
- College of Ocean & Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Danqing Feng
- College of Ocean & Earth Sciences, Xiamen University, Xiamen 361102, China.
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4
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She W, Wang H, Linardi D, Chik SY, Lan Y, Chen F, Cheng A, Qian PY. Mode of action of antifouling compound albofungin in inhibiting barnacle larval settlement. iScience 2023; 26:106981. [PMID: 37534162 PMCID: PMC10391604 DOI: 10.1016/j.isci.2023.106981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/06/2023] [Accepted: 05/24/2023] [Indexed: 08/04/2023] Open
Abstract
Marine biofouling causes huge economic losses to the marine industry every year. Albofungin is a potential antifoulant showing strong anti-macrofouling activities against larval settlement of major fouling organisms. In the present study, directed RNA-seq and proteomic analyses were used to investigate changes in the transcriptome and proteome of a major fouling barnacle Amphibalanus amphitrite cyprids in response to albofungin treatment. Results showed that albofungin treatment remarkably upregulated the metabolism of xenobiotics by the cytochrome P450 pathway to discharge the compound and downregulated energy metabolic processes. Intriguingly, immunostaining and whole-mount in situ hybridization (WISH) revealed the spatial expression patterns of selected differentially expressed genes (glutathione S-transferase [GST], nitric oxide synthase [NOS], and calmodulin [CaM]) distributed in the thorax and antennule of A. amphitrite. Our study provides new insights into the mechanism of albofungin in interrupting the larval settlement of A. amphitrite and suggests its potential application as an antifouling agent in marine environments.
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Affiliation(s)
- Weiyi She
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Nansha, Guangdong, China
- Department of Ocean Science and Hong Kong Brach of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China
- SZU-HKUST Joint PhD Program in Marine Environmental Science, Shenzhen University, Shenzhen 518060, China
| | - Hao Wang
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Nansha, Guangdong, China
- Department of Ocean Science and Hong Kong Brach of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China
| | - Darwin Linardi
- Chemical and Biological Engineering, Hong Kong University of Science and Technology, Hong Kong, China
| | - Sin Yu Chik
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Nansha, Guangdong, China
- Department of Ocean Science and Hong Kong Brach of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China
| | - Yi Lan
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Nansha, Guangdong, China
- Department of Ocean Science and Hong Kong Brach of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China
| | - Feng Chen
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Aifang Cheng
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Nansha, Guangdong, China
- Department of Ocean Science and Hong Kong Brach of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China
| | - Pei-Yuan Qian
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Nansha, Guangdong, China
- Department of Ocean Science and Hong Kong Brach of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China
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5
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Krause LMK, Manderfeld E, Gnutt P, Vogler L, Wassick A, Richard K, Rudolph M, Hunsucker KZ, Swain GW, Rosenhahn B, Rosenhahn A. Semantic segmentation for fully automated macrofouling analysis on coatings after field exposure. BIOFOULING 2023; 39:64-79. [PMID: 36924139 DOI: 10.1080/08927014.2023.2185143] [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: 09/23/2022] [Revised: 02/16/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Biofouling is a major challenge for sustainable shipping, filter membranes, heat exchangers, and medical devices. The development of fouling-resistant coatings requires the evaluation of their effectiveness. Such an evaluation is usually based on the assessment of fouling progression after different exposure times to the target medium (e.g. salt water). The manual assessment of macrofouling requires expert knowledge about local fouling communities due to high variances in phenotypical appearance, has single-image sampling inaccuracies for certain species, and lacks spatial information. Here an approach for automatic image-based macrofouling analysis was presented. A dataset with dense labels prepared from field panel images was made and a convolutional network (adapted U-Net) for the semantic segmentation of different macrofouling classes was proposed. The establishment of macrofouling localization allows for the generation of a successional model which enables the determination of direct surface attachment and in-depth epibiotic studies.
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Affiliation(s)
- Lutz M K Krause
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum, Germany
| | - Emily Manderfeld
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum, Germany
| | - Patricia Gnutt
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum, Germany
| | - Louisa Vogler
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum, Germany
| | - Ann Wassick
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida, USA
| | - Kailey Richard
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida, USA
| | - Marco Rudolph
- Institute for Information Processing, Leibniz University Hannover, Hannover, Germany
| | - Kelli Z Hunsucker
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida, USA
| | - Geoffrey W Swain
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida, USA
| | - Bodo Rosenhahn
- Institute for Information Processing, Leibniz University Hannover, Hannover, Germany
| | - Axel Rosenhahn
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum, Germany
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6
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Melrose J. High Performance Marine and Terrestrial Bioadhesives and the Biomedical Applications They Have Inspired. Molecules 2022; 27:molecules27248982. [PMID: 36558114 PMCID: PMC9783952 DOI: 10.3390/molecules27248982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
This study has reviewed the naturally occurring bioadhesives produced in marine and freshwater aqueous environments and in the mucinous exudates of some terrestrial animals which have remarkable properties providing adhesion under difficult environmental conditions. These bioadhesives have inspired the development of medical bioadhesives with impressive properties that provide an effective alternative to suturing surgical wounds improving closure and healing of wounds in technically demanding tissues such as the heart, lung and soft tissues like the brain and intestinal mucosa. The Gecko has developed a dry-adhesive system of exceptional performance and has inspired the development of new generation re-usable tapes applicable to many medical procedures. The silk of spider webs has been equally inspiring to structural engineers and materials scientists and has revealed innovative properties which have led to new generation technologies in photonics, phononics and micro-electronics in the development of wearable biosensors. Man made products designed to emulate the performance of these natural bioadhesive molecules are improving wound closure and healing of problematic lesions such as diabetic foot ulcers which are notoriously painful and have also found application in many other areas in biomedicine. Armed with information on the mechanistic properties of these impressive biomolecules major advances are expected in biomedicine, micro-electronics, photonics, materials science, artificial intelligence and robotics technology.
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Affiliation(s)
- James Melrose
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Faculty of Medicine and Health, University of Sydney at Royal North Shore Hospital, Northern Sydney Local Health District, St. Leonards, NSW 2065, Australia;
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Sydney Medical School, Northern Campus, The University of Sydney, St. Leonards, NSW 2065, Australia
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7
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Xu Z, Liu Z, Zhang C, Xu D. Advance in barnacle cement with high underwater adhesion. J Appl Polym Sci 2022. [DOI: 10.1002/app.52894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Zhenzhen Xu
- Beijing Institute of Basic Medical Sciences Beijing China
- College of Pharmaceutical Sciences Hebei University Baoding China
| | - Zhongcheng Liu
- College of Pharmaceutical Sciences Hebei University Baoding China
| | - Chao Zhang
- Beijing Institute of Basic Medical Sciences Beijing China
| | - Donggang Xu
- Beijing Institute of Basic Medical Sciences Beijing China
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8
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Gan K, Liang C, Bi X, Wu J, Ye Z, Wu W, Hu B. Adhesive Materials Inspired by Barnacle Underwater Adhesion: Biological Principles and Biomimetic Designs. Front Bioeng Biotechnol 2022; 10:870445. [PMID: 35573228 PMCID: PMC9097139 DOI: 10.3389/fbioe.2022.870445] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/22/2022] [Indexed: 01/19/2023] Open
Abstract
Wet adhesion technology has potential applications in various fields, especially in the biomedical field, yet it has not been completely mastered by humans. Many aquatic organisms (e.g., mussels, sandcastle worms, and barnacles) have evolved into wet adhesion specialists with excellent underwater adhesion abilities, and mimicking their adhesion principles to engineer artificial adhesive materials offers an important avenue to address the wet adhesion issue. The crustacean barnacle secretes a proteinaceous adhesive called barnacle cement, with which they firmly attach their bodies to almost any substrate underwater. Owing to the unique chemical composition, structural property, and adhesion mechanism, barnacle cement has attracted widespread research interest as a novel model for designing biomimetic adhesive materials, with significant progress being made. To further boost the development of barnacle cement–inspired adhesive materials (BCIAMs), it is necessary to systematically summarize their design strategies and research advances. However, no relevant reviews have been published yet. In this context, we presented a systematic review for the first time. First, we introduced the underwater adhesion principles of natural barnacle cement, which lay the basis for the design of BCIAMs. Subsequently, we classified the BCIAMs into three major categories according to the different design strategies and summarized their research advances in great detail. Finally, we discussed the research challenge and future trends of this field. We believe that this review can not only improve our understanding of the molecular mechanism of barnacle underwater adhesion but also accelerate the development of barnacle-inspired wet adhesion technology.
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Affiliation(s)
- Kesheng Gan
- College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, China
| | - Chao Liang
- College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, China
- *Correspondence: Chao Liang, ; Biru Hu,
| | - Xiangyun Bi
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Jizhe Wu
- College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, China
| | - Zonghuang Ye
- College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, China
| | - Wenjian Wu
- College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, China
| | - Biru Hu
- College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, China
- *Correspondence: Chao Liang, ; Biru Hu,
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9
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Bae S, Ubagan MD, Shin S, Kim DG. Comparison of Recruitment Patterns of Sessile Marine Invertebrates According to Substrate Characteristics. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19031083. [PMID: 35162107 PMCID: PMC8834478 DOI: 10.3390/ijerph19031083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 02/04/2023]
Abstract
A community of benthic invertebrates, including sessile adult-stage invertebrates, can negatively effect corrosion, deformation, and increased fuel consumption by attaching to artificial structures, a phenomenon known as marine biofouling. Investigating the relationship between benthic communities and artificial structures or substrates (to which the organisms attach) can help clarify the factors influencing marine biofouling. Therefore, in our study, natural (stone) and artificial (rubber, tarpaulin, and iron) substrates were installed in three harbors (Mokpo, Tongyeong, and Busan), and the structures of the communities attached to each substrate were compared. The total study period was 15 months (September 2016 to December 2017), and field surveys were performed at 3-month intervals. The three survey sites had significant differences in the structure of the sessile community present. In particular, Tongyeong was significantly different from Mokpo and Busan due to the continuous dominance of Cirripedia. When comparing natural and artificial substrate by sites, significant differences were observed in the community structure in all three surveyed sites. In Mokpo and Busan, colonial ascidians were dominant on natural substrate rather than artificial substrates; post-summer, Cirripedia coverage was higher on artificial substrates than natural substrate due to corrosion. Tongyeong showed a different pattern from that of Mokpo and Busan. After the summer, Bivalvia dominated on natural substrate over artificial substrates, affecting the differences between natural and artificial substrates. Our results demonstrate the recruitment patterns of sessile marine invertebrates according to substrate characteristics and can be used as basic information for biofouling management in marine environment.
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Affiliation(s)
- Seongjun Bae
- Department of Ecology and Conservation, Marine Biodiversity Institute of Korea, Seocheon 33662, Korea;
- Department of Ocean Environmental Sciences, College of Natural Science, Chungnam National University, Daejeon 34134, Korea
| | - Michael Dadole Ubagan
- Department of Animal Biotechnology and Resource, College of Science and Technology, Sahmyook University, Seoul 01795, Korea;
| | - Sook Shin
- Department of Animal Biotechnology and Resource, College of Science and Technology, Sahmyook University, Seoul 01795, Korea;
- Correspondence: (S.S.); (D.G.K.)
| | - Dong Gun Kim
- Smith Liberal Arts College, Sahmyook University, Seoul 01795, Korea
- Correspondence: (S.S.); (D.G.K.)
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10
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Labriere C, Cervin G, Pavia H, Hansen JH, Svenson J. Structure-Activity Relationship Probing of the Natural Marine Antifoulant Barettin. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2021; 23:904-916. [PMID: 34727298 DOI: 10.1007/s10126-021-10074-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 09/17/2021] [Indexed: 06/13/2023]
Abstract
The sponge derived 2,5-diketopiperazine metabolite barettin is a potent antifouling compound effective against the settlement and metamorphosis of barnacles. Simplified derivatives of barettin have previously been shown to display similar inhibitory properties. The synthetic derivative benzo[g]dipodazine has been reported to display significantly improved antifouling properties in comparison with the native barettin with inhibitory activities as low a 0.034 µM reported against barnacle cyprid settlement. In the current study we report the antifouling activity of 29 synthetic analogs designed and inspired by the potent antifouling effect seen for benzo[g]dipodazine. The library contains mainly not only dipodazine derivatives but also disubstituted diketopiperazines and compounds incorporating alternative heterocyclic cores such as hydantoin, creatinine, and rhodanine. Several of the prepared compounds inhibit the settlement of Amphibalanus improvisus cyprids at low micromolar concentrations, in parity with the natural barettin. While several highly active compounds were prepared by incorporating the benzo[g]indole as hydrophobic substituent, the remarkable antifouling effect reported for benzo[g]dipodazine was not observed when evaluated in our study.
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Affiliation(s)
- Christophe Labriere
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037, Tromsø, Norway
| | - Gunnar Cervin
- Department of Marine Sciences - Tjärnö, University of Gothenburg, 452 96, Strömstad, Sweden
| | - Henrik Pavia
- Department of Marine Sciences - Tjärnö, University of Gothenburg, 452 96, Strömstad, Sweden
| | - Jørn H Hansen
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037, Tromsø, Norway
| | - Johan Svenson
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037, Tromsø, Norway.
- Cawthron Institute, 98 Halifax Street East, Nelson, 7010, New Zealand.
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11
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La Manna S, Di Natale C, Onesto V, Marasco D. Self-Assembling Peptides: From Design to Biomedical Applications. Int J Mol Sci 2021; 22:12662. [PMID: 34884467 PMCID: PMC8657556 DOI: 10.3390/ijms222312662] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/15/2021] [Accepted: 11/19/2021] [Indexed: 12/20/2022] Open
Abstract
Self-assembling peptides could be considered a novel class of agents able to harvest an array of micro/nanostructures that are highly attractive in the biomedical field. By modifying their amino acid composition, it is possible to mime several biological functions; when assembled in micro/nanostructures, they can be used for a variety of purposes such as tissue regeneration and engineering or drug delivery to improve drug release and/or stability and to reduce side effects. Other significant advantages of self-assembled peptides involve their biocompatibility and their ability to efficiently target molecular recognition sites. Due to their intrinsic characteristics, self-assembled peptide micro/nanostructures are capable to load both hydrophobic and hydrophilic drugs, and they are suitable to achieve a triggered drug delivery at disease sites by inserting in their structure's stimuli-responsive moieties. The focus of this review was to summarize the most recent and significant studies on self-assembled peptides with an emphasis on their application in the biomedical field.
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Affiliation(s)
- Sara La Manna
- Department of Pharmacy, University of Naples “Federico II”, 80131 Naples, Italy;
| | - Concetta Di Natale
- Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci, 53, 80125 Napoli, Italy
- Centro di Ricerca Interdipartimentale sui Biomateriali CRIB, Università di Napoli Federico II, Piazzale Tecchio, 80, 80125 Napoli, Italy
| | - Valentina Onesto
- Institute of Nanotechnology, Consiglio Nazionale delle Ricerche, CNR NANOTEC, via Monteroni, c/o Campus Ecotekne, 73100 Lecce, Italy;
| | - Daniela Marasco
- Department of Pharmacy, University of Naples “Federico II”, 80131 Naples, Italy;
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12
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Schultzhaus JN, Hervey WJ, Taitt CR, So CR, Leary DH, Wahl KJ, Spillmann CM. Comparative analysis of stalked and acorn barnacle adhesive proteomes. Open Biol 2021; 11:210142. [PMID: 34404232 PMCID: PMC8371367 DOI: 10.1098/rsob.210142] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Barnacles interest the scientific community for multiple reasons: their unique evolutionary trajectory, vast diversity and economic impact—as a harvested food source and also as one of the most prolific macroscopic hard biofouling organisms. A common, yet novel, trait among barnacles is adhesion, which has enabled a sessile adult existence and global colonization of the oceans. Barnacle adhesive is primarily composed of proteins, but knowledge of how the adhesive proteome varies across the tree of life is unknown due to a lack of genomic information. Here, we supplement previous mass spectrometry analyses of barnacle adhesive with recently sequenced genomes to compare the adhesive proteomes of Pollicipes pollicipes (Pedunculata) and Amphibalanus amphitrite (Sessilia). Although both species contain the same broad protein categories, we detail differences that exist between these species. The barnacle-unique cement proteins show the greatest difference between species, although these differences are diminished when amino acid composition and glycosylation potential are considered. By performing an in-depth comparison of the adhesive proteomes of these distantly related barnacle species, we show their similarities and provide a roadmap for future studies examining sequence-specific differences to identify the proteins responsible for functional differences across the barnacle tree of life.
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Affiliation(s)
- Janna N Schultzhaus
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, DC, USA
| | - William Judson Hervey
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, DC, USA
| | - Chris R Taitt
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, DC, USA
| | - Chris R So
- Chemistry Division, Naval Research Laboratory, Washington, DC, USA
| | - Dagmar H Leary
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, DC, USA
| | - Kathryn J Wahl
- Chemistry Division, Naval Research Laboratory, Washington, DC, USA
| | - Christopher M Spillmann
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, DC, USA
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13
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Varello R, Wetzel MA, Cima F. Two facets of geotextiles in coastal ecosystems: Anti- or profouling effects? MARINE ENVIRONMENTAL RESEARCH 2021; 170:105414. [PMID: 34273865 DOI: 10.1016/j.marenvres.2021.105414] [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: 05/05/2021] [Revised: 06/08/2021] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
Nonwoven geotextile fabrics have physical, mechanical and hydraulic properties useful in coastal protection as an alternative to natural stone, slag, and concrete. In a 10-month experiment, the colonisation of macrofouling organisms on different substrata based on polypropylene (PP), polyester (PET) or high density polyethylene (HDPE) fibres was investigated in the Lagoon of Venice, Italy - an environment with temperate transitional waters with high biodiversity - and compared with the colonisation on wood as a reference substratum, because of its occurrence in artificial structures at the study location, until a stable stage was reached in the development of the macrofouling community. Geotextile fabrics showed implications for community development. They affected both ecological succession in different ways by disturbing biofouling settlement and growth (HDPE fabrics) or favouring species which become dominant (PP fabrics). For these two-faceted aspects that potentially cause different long-term impacts on the biodiversity of resident communities, the use of geotextile fabrics as antifouling or as profouling systems for restoration of degraded ecosystems is discussed. In all cases, the communities displayed unique properties, such as differences in the settlement of pioneer species, an initial disturbance to serpulid settlement, absence of barnacles, selection of dominant taxa (ascidians), and changes in the percentages of various taxa forming the community structure. Given the increasing interest in geotextile materials for employment in various marine developments and industries, these results could represent first lines of evidence to inform decision-making to minimise/modify biofouling, and/or predict the use of artificial substrata as habitats by marine organisms.
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Affiliation(s)
- Roberta Varello
- Laboratory of Ascidian Biology, Department of Biology (DiBio), University of Padova, Via U. Bassi 58/B, 35131, Padova, Italy
| | - Markus A Wetzel
- Department of Animal Ecology, German Federal Institute of Hydrology - BfG, Am Mainzer Tor 1, 56068, Koblenz, Germany; Institute for Integrated Natural Sciences, University of Koblenz - Landau, Universitätsstrasse 1, 56070, Koblenz, Germany
| | - Francesca Cima
- Laboratory of Ascidian Biology, Department of Biology (DiBio), University of Padova, Via U. Bassi 58/B, 35131, Padova, Italy.
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14
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Trivedi JN, Doshi M, Patel KJ, Chan BKK. Diversity of intertidal, epibiotic, and fouling barnacles (Cirripedia, Thoracica) from Gujarat, northwest India. Zookeys 2021; 1026:143-178. [PMID: 33850420 PMCID: PMC8018942 DOI: 10.3897/zookeys.1026.60733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/04/2021] [Indexed: 11/12/2022] Open
Abstract
The present work studied the diversity of intertidal, epibiotic, and fouling barnacles in the state of Gujarat, northwest India. In total, eleven species belonging to eight genera and five families were recorded in the present study. The Arabian intertidal species Tetraclitaehsani Shahdadi, Chan & Sari, 2011 and Chthamalusbarnesi Achituv & Safriel, 1980 are common in the high- and mid-intertidal rocky shores of Gujarat suggesting that the Gujarat barnacle assemblages are similar to the assemblages in the Gulf of Oman Ecoregion. The biogeographical boundary between the Gulf of Oman and Western Indian ecoregions for barnacles should probably extend southward towards the waters adjacent to Mumbai, where Indo-Pacific species of intertidal barnacles dominate. This study provides the first reports of the common widely distributed balanomorph barnacles Striatobalanustenuis (Hoek, 1883), Tetraclitellakarandei Ross, 1971, Amphibalanusreticulatus (Utinomi, 1967), and lepadid barnacle Lepasanatifera Linnaeus, 1758 in Gujarat, as well as of the chthamalid barnacle Chthamalusbarnesi in India.
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Affiliation(s)
- Jigneshkumar N Trivedi
- Department of Life Sciences, Hemchandracharya North Gujarat University, Patan-384265, Gujarat, India Hemchandracharya North Gujarat University Gujarat India
| | - Mahima Doshi
- Department of Life Sciences, Hemchandracharya North Gujarat University, Patan-384265, Gujarat, India Hemchandracharya North Gujarat University Gujarat India
| | - Krupal J Patel
- Marine Biodiversity and Ecology Laboratory, Department of Zoology, The Maharaja Sayajirao University of Baroda, Vadodara-390002, Gujarat, India The Maharaja Sayajirao University of Baroda Gujarat India
| | - Benny K K Chan
- Biodiversity Research Center, Academia Sinica, Taipei 115, Taiwan Biodiversity Research Center, Academia Sinica Taipei Taiwan
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15
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Mu L, Rutkowski S, Si T, Gai M, Wang J, Tverdokhlebov SI, Frueh J. A reduction of settlement probability of Chlorella vulgaris on photo-chemically active ceramics with hierarchical nano-structures. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125898] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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A Mechanics Study on the Self-Righting of Abalone from the Substrate. Appl Bionics Biomech 2020; 2020:8825451. [PMID: 33381225 PMCID: PMC7748893 DOI: 10.1155/2020/8825451] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 09/23/2020] [Accepted: 11/30/2020] [Indexed: 01/25/2023] Open
Abstract
In this study, we aim to probe the self-righting behavior of abalone on a substrate based on experiments and mechanistic analyses. A successful self-righting process of abalone is observed, and its critical condition in theory can be given in terms of the rotation angle. Then, according to the moment balance and potential energy minimization, the required tension force of the abalone foot for self-righting is derived with respect to the rotation angle. The experimental result also shows that in many cases the abalone cannot finish this self-righting process. Then, measurements on the tolerant strength of abalone muscle and tolerant adhesion strength of the foot on substrate are both conducted. It is judged that the abalone muscle is strong enough, which can provide enough tension force, and thus, the self-righting mainly depends on the adhesion area of the foot on substrate. These findings cast new light on engineering new types of biomaterials and devices, such as marine equipment and soft robotics.
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Vilas-Boas C, Carvalhal F, Pereira B, Carvalho S, Sousa E, Pinto MMM, Calhorda MJ, Vasconcelos V, Almeida JR, Silva ER, Correia-da-Silva M. One Step Forward towards the Development of Eco-Friendly Antifouling Coatings: Immobilization of a Sulfated Marine-Inspired Compound. Mar Drugs 2020; 18:md18100489. [PMID: 32992876 PMCID: PMC7600153 DOI: 10.3390/md18100489] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/19/2020] [Accepted: 09/23/2020] [Indexed: 12/30/2022] Open
Abstract
Marine biofouling represents a global economic and ecological challenge and few eco-friendly antifouling agents are available. The aim of this work was to establish the proof of concept that a recently synthesized nature-inspired compound (gallic acid persulfate, GAP) can act as an eco-friendly and effective antifoulant when immobilized in coatings through a non-release strategy, promoting a long-lasting antifouling effect. The synthesis of GAP was optimized to provide quantitative yields. GAP water solubility was assessed, showing values higher than 1000 mg/mL. GAP was found to be stable in sterilized natural seawater with a half-life (DT50) of 7 months. GAP was immobilized into several commercial coatings, exhibiting high compatibility with different polymeric matrices. Leaching assays of polydimethylsiloxane and polyurethane-based marine coatings containing GAP confirmed that the chemical immobilization of GAP was successful, since releases up to fivefold lower than the conventional releasing systems of polyurethane-based marine coatings were observed. Furthermore, coatings containing immobilized GAP exhibited the most auspicious anti-settlement effect against Mytilus galloprovincialis larvae for the maximum exposure period (40 h) in laboratory trials. Overall, GAP promises to be an agent capable of improving the antifouling activity of several commercial marine coatings with desirable environmental properties.
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Affiliation(s)
- Cátia Vilas-Boas
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (C.V.-B.); (F.C.); (E.S.); (M.M.M.P.)
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
| | - Francisca Carvalhal
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (C.V.-B.); (F.C.); (E.S.); (M.M.M.P.)
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
| | - Beatriz Pereira
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016 Portugal; (B.P.); (M.J.C.)
| | - Sílvia Carvalho
- CQB—Centro de Química e Bioquímica, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016 Lisboa, Portugal;
| | - Emília Sousa
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (C.V.-B.); (F.C.); (E.S.); (M.M.M.P.)
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
| | - Madalena M. M. Pinto
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (C.V.-B.); (F.C.); (E.S.); (M.M.M.P.)
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
| | - Maria José Calhorda
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016 Portugal; (B.P.); (M.J.C.)
| | - Vitor Vasconcelos
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007 Porto, Portugal
| | - Joana R. Almeida
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
| | - Elisabete R. Silva
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016 Portugal; (B.P.); (M.J.C.)
- Correspondence: (E.R.S.); (M.C.-d.-S.)
| | - Marta Correia-da-Silva
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (C.V.-B.); (F.C.); (E.S.); (M.M.M.P.)
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
- Correspondence: (E.R.S.); (M.C.-d.-S.)
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18
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Peng LH, Liang X, Chang RH, Mu JY, Chen HE, Yoshida A, Osatomi K, Yang JL. A bacterial polysaccharide biosynthesis-related gene inversely regulates larval settlement and metamorphosis of Mytilus coruscus. BIOFOULING 2020; 36:753-765. [PMID: 32847400 DOI: 10.1080/08927014.2020.1807520] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/29/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
Larval settlement and metamorphosis is essential for the development of marine invertebrates. Although polysaccharides are involved in larval settlement and metamorphosis of Mytilus coruscus, the molecular basis of polysaccharides underlying this progression remains largely unknown. Here, the roles of the polysaccharide biosynthesis-related gene 01912 of Pseudoalteromonas marina ECSMB14103 in the regulation of larval settlement and metamorphosis were examined by gene-knockout technique. Compared with biofilms (BFs) of the wild-type P. marina, Δ01912 BFs with a higher colanic acid (CA) content showed a higher inducing activity on larval settlement and metamorphosis. Deletion of the 01912 gene caused an increase in c-di-GMP levels, accompanied by a decrease in the motility, an increase in cell aggregation, and overproduction of CA. Thus, the bacterial polysaccharide biosynthesis-related gene 01912 may regulate mussel settlement by producing CA via the coordination of c-di-GMP. This work provides a deeper insight into the molecular mechanism of polysaccharides in modulating mussel settlement.
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Affiliation(s)
- Li-Hua Peng
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Xiao Liang
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China
- Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China
| | - Rui-Heng Chang
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Jia-Yi Mu
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Hui-E Chen
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Asami Yoshida
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki, Japan
| | - Kiyoshi Osatomi
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki, Japan
| | - Jin-Long Yang
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China
- Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China
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19
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Marine Biofouling: A European Database for the Marine Renewable Energy Sector. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2020. [DOI: 10.3390/jmse8070495] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Biofouling is a major problem shared among all maritime sectors employing submerged structures where it leads to substantially increased costs and lowered operational lifespans if poorly addressed. Insight into the ongoing processes at the relevant marine locations is key to effective management of biofouling. Of specific concern for the marine renewable energy (MRE) sector is the fact that information on biofouling composition and magnitude across geographies is dispersed throughout published papers and consulting reports. To enable rapid access to relevant key biofouling events the present work describes a European biofouling database to support the MRE sector and other maritime industries. The database compiles in one document qualitative and quantitative data for challenging biofouling groups, including non-native species associated with MRE and related marine equipment, in different European Ecoregions. It provides information on the occurrence of fouling species and data on key biofouling parameters, such as biofouling thickness and weight. The database aims to aid the MRE sector and offshore industries in understanding which biofouling communities their devices are more susceptible to at a given site, to facilitate informed decisions. In addition, the biofouling mapping is useful for the development of biosecurity risk management plans as well as academic research.
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20
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Yan G, Sun J, Wang Z, Qian PY, He L. Insights into the Synthesis, Secretion and Curing of Barnacle Cyprid Adhesive via Transcriptomic and Proteomic Analyses of the Cement Gland. Mar Drugs 2020; 18:E186. [PMID: 32244485 PMCID: PMC7230167 DOI: 10.3390/md18040186] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/27/2020] [Accepted: 03/29/2020] [Indexed: 02/06/2023] Open
Abstract
Barnacles represent one of the model organisms used for antifouling research, however, knowledge regarding the molecular mechanisms underlying barnacle cyprid cementation is relatively scarce. Here, RNA-seq was used to obtain the transcriptomes of the cement glands where adhesive is generated and the remaining carcasses of Megabalanus volcano cyprids. Comparative transcriptomic analysis identified 9060 differentially expressed genes, with 4383 upregulated in the cement glands. Four cement proteins, named Mvcp113k, Mvcp130k, Mvcp52k and Mvlcp1-122k, were detected in the cement glands. The salivary secretion pathway was significantly enriched in the Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis of the differentially expressed genes, implying that the secretion of cyprid adhesive might be analogous to that of saliva. Lysyl oxidase had a higher expression level in the cement glands and was speculated to function in the curing of cyprid adhesive. Furthermore, the KEGG enrichment analysis of the 352 proteins identified in the cement gland proteome partially confirmed the comparative transcriptomic results. These results present insights into the molecular mechanisms underlying the synthesis, secretion and curing of barnacle cyprid adhesive and provide potential molecular targets for the development of environmentally friendly antifouling compounds.
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Affiliation(s)
- Guoyong Yan
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China;
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Jin Sun
- Department of Ocean Science, Division of Life Science and Hong Kong Branch of The Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Hong Kong 999077, China; (J.S.); (P.-Y.Q.)
| | - Zishuai Wang
- Department of Computer Science, City University of Hong Kong, Hong Kong 999077, China;
| | - Pei-Yuan Qian
- Department of Ocean Science, Division of Life Science and Hong Kong Branch of The Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Hong Kong 999077, China; (J.S.); (P.-Y.Q.)
| | - Lisheng He
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China;
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Checa AG, González-Segura A, Rodríguez-Navarro AB, Lagos NA. Microstructure and crystallography of the wall plates of the giant barnacle Austromegabalanus psittacus: a material organized by crystal growth. J R Soc Interface 2020; 17:20190743. [PMID: 32126195 DOI: 10.1098/rsif.2019.0743] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
In biomineralization, it is essential to know the microstructural and crystallographic organization of natural hard tissues. This knowledge is virtually absent in the case of barnacles. Here, we have examined the crystal morphology and orientation of the wall plates of the giant barnacle Austromegabalanus psittacus by means of optical and electron microscopy, and electron backscatter diffraction. The wall plates are made of calcite grains, which change in morphology from irregular to rhombohedral, except for the radii and alae, where fibrous calcite is produced. Both the grains and fibres arrange into bundles made of crystallographically co-oriented units, which grow onto each other epitaxially. We call these areas crystallographically coherent regions (CCRs). Each CCR elongates and disposes its c-axis perpendicularly or at a high angle to the growth surfaces, whereas the a-axes of adjacent CCRs differ in orientation. In the absence of obvious organic matrices, this pattern of organization is interpreted to be produced by purely crystallographic processes. In particular, due to crystal competition, CCRs orient their fastest growth axes perpendicular to the growth surface. Since each CCR is an aggregate of grains, the fastest growth axis is that along which crystals stack up more rapidly, that is, the crystallographic c-axis in granular calcite. In summary, the material forming the wall plates of the studied barnacles is under very little biological control and the main role of the mantle cells is to provide the construction materials to the growth front.
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Affiliation(s)
- Antonio G Checa
- Departamento de Estratigrafía y Paleontología, Universidad de Granada, 18071 Granada, Spain.,Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad de Granada, 18100 Armilla, Spain
| | | | | | - Nelson A Lagos
- Centro de Investigación e Innovación para el Cambio Climático, Universidad Santo Tomás, Santiago, Chile
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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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Abed RMM, Muthukrishnan T, Al Khaburi M, Al-Senafi F, Munam A, Mahmoud H. Degradability and biofouling of oxo-biodegradable polyethylene in the planktonic and benthic zones of the Arabian Gulf. MARINE POLLUTION BULLETIN 2020; 150:110639. [PMID: 31706724 DOI: 10.1016/j.marpolbul.2019.110639] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/29/2019] [Accepted: 09/29/2019] [Indexed: 05/21/2023]
Abstract
Little is known about the degradability of oxo-biodegradable polyethylene (OXO-PE) and its surface fouling bacterial communities in the marine environment. The degradation of OXO-PE, PE and polyethylene terephthalate (PET) was compared at two depths (2 m and 6 m) in the Arabian Gulf. Scanning electron microcopy (SEM) revealed more fissure formation on OXO-PE and PE than on PET, indicating physical degradation. The formation of hydroxyl groups and carbonyl bonds, by Fourier-transform infrared spectroscopy (FTIR), suggests chemical degradation of OXO-PE. Plastisphere bacterial communities on OXO-PE and PE were different than on PET. Proteobacteria, Bacteriodetes and Planctomycetes were detected on all plastics, however, sequences of Alteromonas and Zoogloea were OXO-PE-specific suggesting a possible involvement of these bacterial genera in OXO-PE degradation. We conclude that OXO-PE shows increased signs of degradation with time owing to the combination of abiotic and biotic processes, and its degradation is higher in the benthic than in the planktonic zone.
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Affiliation(s)
- Raeid M M Abed
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box: 36, PC 123, Al Khoud, Sultanate of Oman.
| | - Thirumahal Muthukrishnan
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box: 36, PC 123, Al Khoud, Sultanate of Oman
| | - Maryam Al Khaburi
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box: 36, PC 123, Al Khoud, Sultanate of Oman
| | - Fahad Al-Senafi
- Department of Marine Sciences, Faculty of Science, Kuwait University, P.O. Box 5969, Safat, Kuwait
| | - Abdul Munam
- Chemistry Department, College of Science, Sultan Qaboos University, P. O. Box: 36, PC 123, Al Khoud, Sultanate of Oman
| | - Huda Mahmoud
- Department of Biological Sciences, Faculty of Science, Kuwait University, P.O. Box 5969, Safat, Kuwait
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24
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Almeida M, Reis RL, Silva TH. Marine invertebrates are a source of bioadhesives with biomimetic interest. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 108:110467. [PMID: 31924038 DOI: 10.1016/j.msec.2019.110467] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/06/2019] [Accepted: 11/18/2019] [Indexed: 12/18/2022]
Abstract
Protein-based bioadhesives are found in diverse marine invertebrates that developed attachment devices to adhere to various substrates. These adhesives are of interest to materials science to create bioinspired-adhesives that can perform in water or wet conditions and can be applied in a broad variety of biotechnological and industrial fields. Due to the high variety of invertebrates that inhabit the marine environment, an enormous diversity of structures and principles used in biological adhesives remains unexplored and a very limited number of model systems have inspired novel biomimetic adhesives, the most notable being the mussel byssus adhesive. In this review we give an overview of other marine invertebrates studied for their bioadhesive properties in view of their interest for the development of new biomimetic adhesives for application in the biomedical field but also for antifouling coatings. The molecular features are described, highlighting relevant structures, and examples of biomimetic materials are discussed and explored, opening an avenue for a new set of medical products.
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Affiliation(s)
- Mariana Almeida
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Tiago H Silva
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal.
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25
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Checa AG, Salas C, Rodríguez-Navarro AB, Grenier C, Lagos NA. Articulation and growth of skeletal elements in balanid barnacles (Balanidae, Balanomorpha, Cirripedia). ROYAL SOCIETY OPEN SCIENCE 2019; 6:190458. [PMID: 31598290 PMCID: PMC6774972 DOI: 10.1098/rsos.190458] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 08/08/2019] [Indexed: 06/10/2023]
Abstract
The morphology and ultrastructure of the shells of two balanid species have been examined, paying special attention to the three types of boundaries between plates: (i) radii-parietes, (ii) alae-sheaths, and (iii) parietes-basal plate. At the carinal surfaces of the radii and at the rostral surfaces of the alae, there are series of crenulations with dendritic edges. The crenulations of the radius margins interlock with less prominent features of the opposing paries margins, whereas the surfaces of the longitudinal abutments opposing the ala margins are particularly smooth. The primary septa of the parietes also develop dendritic edges, which abut the internal surfaces of the primary tubes of the base plates. In all cases, there are chitino-proteinaceous organic membranes between the abutting structures. Our observations indicate that the very edges of the crenulations and the primary septa are permanently in contact with the organic membranes. We conclude that, when a new growth increment is going to be produced, the edges of both the crenulations and the primary septa pull the viscoelastic organic membranes locally, with the consequent formation of viscous fingers. For the abutting edges to grow, calcium carbonate must diffuse across the organic membranes, but it is not clear how growth of the organic membranes themselves is accomplished, in the absence of any cellular tissue.
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Affiliation(s)
- Antonio G. Checa
- Departamento de Estratigrafía y Paleontología, Universidad de Granada, 18071 Granada, Spain
- Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad de Granada, 18100 Armilla, Spain
| | - Carmen Salas
- Departamento de Biología Animal, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
| | | | - Christian Grenier
- Departamento de Estratigrafía y Paleontología, Universidad de Granada, 18071 Granada, Spain
| | - Nelson A. Lagos
- Centro de Investigación e Innovación para el Cambio Climático, Universidad Santo Tomás, Santiago, Chile
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26
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Muthukrishnan T, Al Khaburi M, Abed RMM. Fouling Microbial Communities on Plastics Compared with Wood and Steel: Are They Substrate- or Location-Specific? MICROBIAL ECOLOGY 2019; 78:361-374. [PMID: 30535914 DOI: 10.1007/s00248-018-1303-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 11/27/2018] [Indexed: 05/20/2023]
Abstract
Although marine biofouling has been widely studied on different substrates, information on biofouling on plastics in the Arabian Gulf is limited. Substrate- and location-specific effects were investigated by comparing the microbial communities developed on polyethylene terephthalate (PET) and polyethylene (PE) with those on steel and wood, at two locations in the Sea of Oman. Total biomass was lower on PET and PE than on steel and wood. PET had the highest bacterial abundance at both locations, whereas chlorophyll a concentrations did not vary between substrates. MiSeq 16S ribosomal RNA sequencing revealed comparable operational taxonomic unit (OTU) richness on all substrates at one location but lower numbers on PET and PE at the other location. Non-metric multidimensional scaling (NMDS) showed distinct clusters of the bacterial communities based on substrate (analysis of similarity (ANOSIM), R = 0.45-0.97, p < 0.03) and location (ANOSIM, R = 0.56, p < 0.0001). The bacterial genera Microcystis and Hydrogenophaga and the diatoms Licmophora and Mastogloia were specifically detected on plastics. Desulfovibrio and Pseudomonas spp. exhibited their highest abundance on steel and Corynebacterium spp. on wood. Scanning electron microscopy (SEM) revealed fissure formation on PET and PE, indicating physical degradation. The presence of free radicals on PET and carbonyl bonds (C=O) on PE, as revealed by Fourier transform infrared (FTIR) spectroscopy, indicated abiotic degradation while hydroxyl groups and spectral peaks for proteins and polysaccharides on PE indicated biotic degradation. We conclude that fouling microbial communities are not only substrate-specific but also location-specific and microbes developing on plastics could potentially contribute to their degradation in the marine environment.
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Affiliation(s)
- Thirumahal Muthukrishnan
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box 36, PC, 123, Al Khoud, Sultanate of Oman
| | - Maryam Al Khaburi
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box 36, PC, 123, Al Khoud, Sultanate of Oman
| | - Raeid M M Abed
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box 36, PC, 123, Al Khoud, Sultanate of Oman.
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27
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Zhang Y, Li S, Zuo P, Ji J, Liu J. The mechanics of abalone crawling on sharp objects without injury. Sci Rep 2019; 9:3881. [PMID: 30846787 PMCID: PMC6405851 DOI: 10.1038/s41598-019-40505-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 02/07/2019] [Indexed: 01/12/2023] Open
Abstract
Despite the soft appearance of their feet, abalones can crawl quickly on sharp objects. Tests using rough substrates aligned with blades or posts found that the animal has two adaptations to guarantee its safety on these surfaces. Mechanical compression tests showed that the abalone foot muscle is inherently robust and can resist penetration by sharp objects. A finite element simulation indicated that to avoid being pierced, abalone controls the shape of its foot to wrap it around sharp objects, thereby greatly reducing the stress concentration. These analyses may aid the engineering of new materials and devices for fields including soft robotics and aircraft.
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Affiliation(s)
- Yun Zhang
- Department of Engineering Mechanics, College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Shanpeng Li
- Department of Engineering Mechanics, College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Pingcheng Zuo
- Department of Engineering Mechanics, College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Jiaxin Ji
- College of Mechanical and Electronic Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Jianlin Liu
- Department of Engineering Mechanics, College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580, China.
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28
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Aldred N, Gatley-Montross CM, Lang M, Detty MR, Clare AS. Correlative assays of barnacle cyprid behaviour for the laboratory evaluation of antifouling coatings: a study of surface energy components. BIOFOULING 2019; 35:159-172. [PMID: 30855984 DOI: 10.1080/08927014.2019.1577394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 06/09/2023]
Abstract
Laboratory evaluation of antifouling coatings is underpinned by settlement studies with specific fouling organisms. Established methods provide insight into the likelihood of failure of a particular coating system, but can neglect the process of surface selection that often precedes attachment. The present approach for quantifying the exploratory behaviour of barnacle cypris larvae suggested that inspection behaviour can be a rapid and predictive proxy for settlement. Two series of xerogels with comparable total surface energy, but different dispersive and polar components, were evaluated. Settlement assays with three-day-old cyprids of Balanus improvisus demonstrated that while attachment was not linked directly to dispersive free energy, the composition of the xerogel was nevertheless significant. Behavioural analysis provided insight into the mechanism of surface rejection. In the case of a 50:50 PH/TEOS (phenyltriethoxysilane-based) xerogel vs a 50:50 TFP/TEOS (3,3,3-trifluoropropyltrimethoxysilane-based) xerogel, wide-searching behaviour was absent on the former.
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Affiliation(s)
- Nick Aldred
- a School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne, UK
| | - Caitlyn M Gatley-Montross
- b Department of Natural Sciences , Daemen College , Amherst , NY , USA
- c Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , NY , USA
| | - Meredith Lang
- c Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , NY , USA
| | - Michael R Detty
- c Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , NY , USA
| | - Anthony S Clare
- a School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne, UK
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29
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Wang C, Schultzhaus JN, Taitt CR, Leary DH, Shriver-Lake LC, Snellings D, Sturiale S, North SH, Orihuela B, Rittschof D, Wahl KJ, Spillmann CM. Characterization of longitudinal canal tissue in the acorn barnacle Amphibalanus amphitrite. PLoS One 2018; 13:e0208352. [PMID: 30532169 PMCID: PMC6287898 DOI: 10.1371/journal.pone.0208352] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 11/15/2018] [Indexed: 01/21/2023] Open
Abstract
The morphology and composition of tissue located within parietal shell canals of the barnacle Amphibalanus amphitrite are described. Longitudinal canal tissue nearly spans the length of side shell plates, terminating near the leading edge of the specimen basis in proximity to female reproductive tissue located throughout the peripheral sub-mantle region, i.e. mantle parenchyma. Microscopic examination of stained longitudinal canal sections reveal the presence of cell nuclei as well as an abundance of micron-sized spheroids staining positive for basic residues and lipids. Spheroids with the same staining profile are present extensively in ovarioles, particularly within oocytes which are readily identifiable at various developmental stages. Mass spectrometry analysis of longitudinal canal tissue compared to tissue collected from the mantle parenchyma reveals a nearly 50% overlap of the protein profile with the greatest number of sequence matches to vitellogenin, a glycolipoprotein playing a key role in vitellogenesis–yolk formation in developing oocytes. The morphological similarity and proximity to female reproductive tissue, combined with mass spectrometry of the two tissues, provides compelling evidence that one of several possible functions of longitudinal canal tissue is supporting the female reproductive system of A. amphitrite, thus expanding the understanding of the growth and development of this sessile marine organism.
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Affiliation(s)
- Chenyue Wang
- National Research Council Research Associateship Program, Washington, D.C., United States of America
| | - Janna N. Schultzhaus
- National Research Council Research Associateship Program, Washington, D.C., United States of America
| | - Chris R. Taitt
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, D.C., United States of America
| | - Dagmar H. Leary
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, D.C., United States of America
| | - Lisa C. Shriver-Lake
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, D.C., United States of America
| | - Daniel Snellings
- Naval Research Enterprise Internship Program, Washington, D.C., United States of America
| | - Samantha Sturiale
- Naval Research Enterprise Internship Program, Washington, D.C., United States of America
| | - Stella H. North
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, D.C., United States of America
| | - Beatriz Orihuela
- Duke University Marine Laboratory, Beaufort, N.C., United States of America
| | - Daniel Rittschof
- Duke University Marine Laboratory, Beaufort, N.C., United States of America
| | - Kathryn J. Wahl
- Chemistry Division, Naval Research Laboratory, Washington, D.C., United States of America
| | - Christopher M. Spillmann
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, D.C., United States of America
- * E-mail:
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30
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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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31
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Liang C, Ye Z, Xue B, Zeng L, Wu W, Zhong C, Cao Y, Hu B, Messersmith PB. Self-Assembled Nanofibers for Strong Underwater Adhesion: The Trick of Barnacles. ACS APPLIED MATERIALS & INTERFACES 2018; 10:25017-25025. [PMID: 29990429 DOI: 10.1021/acsami.8b04752] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Developing adhesives that can function underwater remains a major challenge for bioengineering, yet many marine creatures, exemplified as mussels and barnacles, have evolved their unique proteinaceous adhesives for strong wet adhesion. The mechanisms underlying the strong adhesion of these natural adhesive proteins provide rich information for biomimetic efforts. Here, combining atomic force microscopy (AFM) imaging and force spectroscopy, we examine the effects of pH on the self-assembly and adhesive properties of cp19k, a key barnacle underwater adhesive protein. For the first time, we confirm that the bacterial recombinant Balanus albicostatus cp19k (rBalcp19k), which contains no 3,4-dihydroxyphenylalanine (DOPA) or any other amino acids with post-translational modifications, can self-assemble into aggregated nanofibers at acidic pHs. Under moderately acidic conditions, the adhesion strength of unassembled monomeric rBalcp19k on mica is only slightly lower than that of a commercially available mussel adhesive protein mixture, yet the adhesion ability of rBalcp19k monomers decreases significantly at increased pH. In contrast, upon preassembly at acidic and low-salinity conditions, rBalcp19k nanofibers keep stable in basic and high-salinity seawater and display much stronger adhesion and thus show resistance to its adverse impacts. Besides, we find that the adhesion ability of Balcp19k is not impaired when it is combined with an N-terminal Thioredoxin (Trx) tag, yet whether the self-assembly property will be disrupted is not determined. Collectively, the self-assembly-enhanced adhesion presents a previously unexplored mechanism for the strong wet adhesion of barnacle cement proteins and may lead to the design of barnacle-inspired adhesive materials.
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Affiliation(s)
- Chao Liang
- Department of Chemistry and Biology, College of Science , National University of Defense Technology , Changsha 410073 , P. R. China
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, Department of Physics , Nanjing University , Nanjing 210093 , P. R. China
| | - Zonghuang Ye
- Department of Chemistry and Biology, College of Science , National University of Defense Technology , Changsha 410073 , P. R. China
| | - Bin Xue
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, Department of Physics , Nanjing University , Nanjing 210093 , P. R. China
| | - Ling Zeng
- Department of Chemistry and Biology, College of Science , National University of Defense Technology , Changsha 410073 , P. R. China
| | - Wenjian Wu
- Department of Chemistry and Biology, College of Science , National University of Defense Technology , Changsha 410073 , P. R. China
| | - Chao Zhong
- School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , P. R. China
| | - Yi Cao
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, Department of Physics , Nanjing University , Nanjing 210093 , P. R. China
| | - Biru Hu
- Department of Chemistry and Biology, College of Science , National University of Defense Technology , Changsha 410073 , P. R. China
| | - Phillip B Messersmith
- Departments of Materials Science and Engineering and Bioengineering , University of California , Berkeley , California 94720 , United States
- Materials Science Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
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32
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Kotsiri M, Protopapa M, Roumelioti GM, Economou-Amilli A, Efthimiadou EK, Dedos SG. Probing the settlement signals of Amphibalanus amphitrite. BIOFOULING 2018; 34:492-506. [PMID: 29792352 DOI: 10.1080/08927014.2018.1465566] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/11/2018] [Indexed: 06/08/2023]
Abstract
To achieve their reproductive potential, barnacles combine tactile exploration of surface structural properties and integration of cellular signals originating from their antennular sensory setae within a developmentally defined, temporally narrow window of settlement opportunity. Behavioural assays with cyprids coupled with biometric analysis of scanning electron microscopy-acquired images in the presence of specific chemical compounds were used to investigate how settlement on a substratum is altered in response to the presence of these compounds. It is shown that impeding tactile exploration, altering cellular signalling and/or inducing malformations of anatomical features of the antennular sensory setae can disrupt the settlement behaviour of the model barnacle species Amphibalanus amphitrite. It is concluded that surface exploration by the cyprids relies on mechanical and nociception-related and calcium-mediated signals while a protein kinase C signalling cascade controls the timely metamorphosis of the cyprids to sessile juveniles.
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Affiliation(s)
- Mado Kotsiri
- a Department of Biology , National and Kapodistrian University of Athens , Athens , Greece
| | - Maria Protopapa
- a Department of Biology , National and Kapodistrian University of Athens , Athens , Greece
| | | | - Athena Economou-Amilli
- a Department of Biology , National and Kapodistrian University of Athens , Athens , Greece
| | - Eleni K Efthimiadou
- b Department of Chemistry , National and Kapodistrian University of Athens , Athens , Greece
| | - Skarlatos G Dedos
- a Department of Biology , National and Kapodistrian University of Athens , Athens , Greece
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33
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Moodie LWK, Cervin G, Trepos R, Labriere C, Hellio C, Pavia H, Svenson J. Design and Biological Evaluation of Antifouling Dihydrostilbene Oxime Hybrids. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2018; 20:257-267. [PMID: 29532333 PMCID: PMC5889410 DOI: 10.1007/s10126-018-9802-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 02/23/2018] [Indexed: 06/08/2023]
Abstract
By combining the recently reported repelling natural dihydrostilbene scaffold with an oxime moiety found in many marine antifoulants, a library of nine antifouling hybrid compounds was developed and biologically evaluated. The prepared compounds were shown to display a low antifouling effect against marine bacteria but a high potency against the attachment and growth of microalgae down to MIC values of 0.01 μg/mL for the most potent hybrid. The mode of action can be characterized as repelling via a reversible non-toxic biostatic mechanism. Barnacle cyprid larval settlement was also inhibited at low μg/mL concentrations with low levels or no toxicity observed. Several of the prepared compounds performed better than many reported antifouling marine natural products. While several of the prepared compounds are highly active as antifoulants, no apparent synergy is observed by incorporating the oxime functionality into the dihydrostilbene scaffold. This observation is discussed in light of recently reported literature data on related marine natural antifoulants and antifouling hybrids as a potentially general strategy for generation of improved antifoulants.
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Affiliation(s)
- Lindon W K Moodie
- Department of Chemistry, UiT The Arctic University of Norway, Breivika, N-9037, Tromsø, Norway.
- Department of Chemistry, Umeå University, SE-901 87, Umeå, Sweden.
| | - Gunnar Cervin
- Department of Marine Sciences - Tjärnö, University of Gothenburg, SE-452 96, Strömstad, Sweden
| | - Rozenn Trepos
- Université de Bretagne Occidentale, Biodimar/LEMAR UMR 6539, Rue Dumont d'Urville, 29280, Plouzané, France
| | - Christophe Labriere
- Department of Chemistry, UiT The Arctic University of Norway, Breivika, N-9037, Tromsø, Norway
| | - Claire Hellio
- Université de Bretagne Occidentale, Biodimar/LEMAR UMR 6539, Rue Dumont d'Urville, 29280, Plouzané, France
| | - Henrik Pavia
- Department of Marine Sciences - Tjärnö, University of Gothenburg, SE-452 96, Strömstad, Sweden
| | - Johan Svenson
- Department of Chemistry, UiT The Arctic University of Norway, Breivika, N-9037, Tromsø, Norway
- Department of Chemistry, Material and Surfaces, RISE Research Institutes of Sweden, Box 857, SE-501 15, Borås, Sweden
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34
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Khachonpisitsak S, Pochai A, Kingtong S, Sukparangsi W. The diversity of acorn barnacles (Cirripedia, Balanomorpha) across Thailand’s coasts: The Andaman Sea and the Gulf of Thailand. ZOOSYST EVOL 2017. [DOI: 10.3897/zse.93.10769] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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35
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Shivapooja P, Cao C, Orihuela B, Levering V, Zhao X, Rittschof D, López GP. Incorporation of silicone oil into elastomers enhances barnacle detachment by active surface strain. BIOFOULING 2016; 32:1017-1028. [PMID: 27560712 DOI: 10.1080/08927014.2016.1209186] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 06/28/2016] [Indexed: 06/06/2023]
Abstract
Silicone-oil additives are often used in fouling-release silicone coatings to reduce the adhesion strength of barnacles and other biofouling organisms. This study follows on from a recently reported active approach to detach barnacles, which was based on the surface strain of elastomeric materials, by investigating a new, dual-action approach to barnacle detachment using Ecoflex®-based elastomers incorporated with poly(dimethylsiloxane)-based oil additives. The experimental results support the hypothesis that silicone-oil additives reduce the amount of substratum strain required to detach barnacles. The study also de-coupled the two effects of silicone oils (ie surface-activity and alteration of the bulk modulus) and examined their contributions in reducing barnacle adhesion strength. Further, a finite element model based on fracture mechanics was employed to qualitatively understand the effects of surface strain and substratum modulus on barnacle adhesion strength. The study demonstrates that dynamic substratum deformation of elastomers with silicone-oil additives provides a bifunctional approach towards management of biofouling by barnacles.
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Affiliation(s)
| | - Changyong Cao
- b Department of Mechanical Engineering and Materials Science , Duke University , Durham , NC , USA
| | - Beatriz Orihuela
- c Duke University Marine Laboratory , Nicholas School of the Environment , Beaufort , NC , USA
| | - Vrad Levering
- a Department of Biomedical Engineering , Duke University , Durham , NC , USA
| | - Xuanhe Zhao
- b Department of Mechanical Engineering and Materials Science , Duke University , Durham , NC , USA
- d Research Triangle Material Research Science & Engineering Center, Duke University , Durham , NC , USA
- e Department of Mechanical Engineering, Massachusetts Institute of Technology , Cambridge , MA , USA
| | - Daniel Rittschof
- c Duke University Marine Laboratory , Nicholas School of the Environment , Beaufort , NC , USA
| | - Gabriel P López
- a Department of Biomedical Engineering , Duke University , Durham , NC , USA
- b Department of Mechanical Engineering and Materials Science , Duke University , Durham , NC , USA
- d Research Triangle Material Research Science & Engineering Center, Duke University , Durham , NC , USA
- f Center for Biomedical Engineering, Department of Chemical and Biological Engineering , University of New Mexico , Albuquerque , NM , USA
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Davidson I, Scianni C, Hewitt C, Everett R, Holm E, Tamburri M, Ruiz G. Mini-review: Assessing the drivers of ship biofouling management--aligning industry and biosecurity goals. BIOFOULING 2016; 32:411-28. [PMID: 26930397 DOI: 10.1080/08927014.2016.1149572] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Biofouling exerts a frictional and cost penalty on ships and is a direct cause of invasion by marine species. These negative consequences provide a unifying purpose for the maritime industry and biosecurity managers to prevent biofouling accumulation and transfer, but important gaps exist between these sectors. This mini-review examines the approach to assessments of ship biofouling among sectors (industry, biosecurity and marine science) and the implications for existing and emerging management of biofouling. The primary distinctions between industry and biosecurity in assessment of vessels biofouling revolve around the resolution of biological information collected and the specific wetted surface areas of primary concern to each sector. The morphological characteristics of biofouling and their effects on propulsion dynamics are of primary concern to industry, with an almost exclusive focus on the vertical sides and flat bottom of hulls and an emphasis on antifouling and operational performance. In contrast, the identity, biogeography, and ecology of translocated organisms is of highest concern to invasion researchers and biosecurity managers and policymakers, especially as it relates to species with known histories of invasion elsewhere. Current management practices often provide adequate, although not complete, provision for hull surfaces, but niche areas are well known to enhance biosecurity risk. As regulations to prevent invasions emerge in this arena, there is a growing opportunity for industry, biosecurity and academic stakeholders to collaborate and harmonize efforts to assess and manage biofouling of ships that should lead to more comprehensive biofouling solutions that promote industry goals while reducing biosecurity risk and greenhouse gas emissions.
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Affiliation(s)
- Ian Davidson
- a Smithsonian Environmental Research Center , Edgewater , MD , USA
| | - Christopher Scianni
- b Marine Invasive Species Program , California State Lands Commission , Sacramento, CA , USA
| | - Chad Hewitt
- c School of Science , University of Waikato , Hamilton , New Zealand
| | - Richard Everett
- d Environmental Standards Division , United States Coast Guard , Washington , DC , USA
| | - Eric Holm
- e Carderock Division , Naval Surface Warfare Center , West Bethesda , MD , USA
| | - Mario Tamburri
- f Chesapeake Biological Laboratory , University of Maryland Center for Environmental Science , Solomons , MD , USA
| | - Gregory Ruiz
- a Smithsonian Environmental Research Center , Edgewater , MD , USA
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Essock-Burns T, Gohad NV, Orihuela B, Mount AS, Spillmann CM, Wahl KJ, Rittschof D. Barnacle biology before, during and after settlement and metamorphosis: a study of the interface. J Exp Biol 2016; 220:194-207. [DOI: 10.1242/jeb.145094] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 10/18/2016] [Indexed: 12/24/2022]
Abstract
Mobile barnacle cypris larvae settle and metamorphose, transitioning to sessile juveniles with morphology and growth similar to adults. Because biofilms exist on immersed surfaces on which they attach, barnacles must interact with bacteria during initial attachment and subsequent growth. The objective of this study was to characterize the developing interface of the barnacle and substratum during this key developmental transition to inform potential mechanisms that promote attachment. The interface was characterized using confocal microscopy and fluorescent dyes to identify morphological and chemical changes in the interface and the status of bacteria present as a function of barnacle developmental stage. Staining revealed patchy material containing proteins and nucleic acids, reactive oxygen species amidst developing cuticle, and changes in bacteria viability at the developing interface. We found that as barnacles metamorphose from the cyprid to juvenile stage, proteinaceous materials with the appearance of coagulated liquid were released into and remained at the interface. The patchy material was associated with cuticle expansion and separation during later stages of metamorphosis, and spanned the entire vertical interface in the gap between the juvenile base and the substratum. It stained positive for proteins, including phosphoprotein, as well as nucleic acids. Regions of the developing cuticle and the patchy material itself stained for reactive oxygen species. Bacteria were absent until the cyprid was firmly attached, but populations died as barnacle development progressed. The oxidative environment may contribute to the cytotoxicity observed for bacteria and has potential for oxidative crosslinking of cuticle and proteinaceous materials at the interface.
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Affiliation(s)
- Tara Essock-Burns
- Kewalo Marine Laboratory, Pacific Biosciences Research Center, University of Hawaii, 41 Ahui St Honolulu, Hawaii 96813, USA
| | - Neeraj V. Gohad
- Okeanos Research Group, Department of Biological Sciences, 132 Long Hall, Clemson University, Clemson, South Carolina 29634, USA
| | - Beatriz Orihuela
- Duke University Marine Laboratory, Marine Science and Conservation, 135 Duke Marine Lab Road Beaufort, North Carolina 28516, USA
| | - Andrew S. Mount
- Duke University Marine Laboratory, Marine Science and Conservation, 135 Duke Marine Lab Road Beaufort, North Carolina 28516, USA
| | - Christopher M. Spillmann
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, DC 20375, USA
| | - Kathryn J. Wahl
- Chemistry Division, Naval Research Laboratory, Washington, DC 20375, USA
| | - Daniel Rittschof
- Duke University Marine Laboratory, Marine Science and Conservation, 135 Duke Marine Lab Road Beaufort, North Carolina 28516, USA
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Chandramouli KH, Al-Aqeel S, Ryu T, Zhang H, Seridi L, Ghosheh Y, Qian PY, Ravasi T. Transcriptome and proteome dynamics in larvae of the barnacle Balanus Amphitrite from the Red Sea. BMC Genomics 2015; 16:1063. [PMID: 26666348 PMCID: PMC4678614 DOI: 10.1186/s12864-015-2262-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 11/30/2015] [Indexed: 11/11/2022] Open
Abstract
Background The barnacle Balanus amphitrite is widely distributed in marine shallow and tidal waters, and has significant economic and ecological importance. Nauplii, the first larval stage of most crustaceans, are extremely abundant in the marine zooplankton. However, a lack of genome information has hindered elucidation of the molecular mechanisms of development, settlement and survival strategies in extreme marine environments. We sequenced and constructed the genome dataset for nauplii to obtain comprehensive larval genetic information. We also investigated iTRAQ-based protein expression patterns to reveal the molecular basis of nauplii development, and to gain information on larval survival strategies in the Red Sea marine environment. Results A nauplii larval transcript dataset, containing 92,117 predicted open reading frames (ORFs), was constructed and used as a reference for the proteome analysis. Genes related to translation, oxidative phosphorylation and cytoskeletal development were highly abundant. We observed remarkable plasticity in the proteome of Red Sea larvae. The proteins associated with development, stress responses and osmoregulation showed the most significant differences between the two larval populations studied. The synergistic overexpression of heat shock and osmoregulatory proteins may facilitate larval survival in intertidal habitats or in extreme environments. Conclusions We presented, for the first time, comprehensive transcriptome and proteome datasets for Red Sea nauplii. The datasets provide a foundation for future investigations focused on the survival mechanisms of other crustaceans in extreme marine environments. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-2262-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kondethimmanahalli H Chandramouli
- KAUST Environmental Epigenetic Program (KEEP), Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia.
| | - Sarah Al-Aqeel
- KAUST Environmental Epigenetic Program (KEEP), Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia.
| | - Taewoo Ryu
- KAUST Environmental Epigenetic Program (KEEP), Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia.
| | - Huoming Zhang
- Bioscience Core Laboratory, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia.
| | - Loqmane Seridi
- KAUST Environmental Epigenetic Program (KEEP), Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia.
| | - Yanal Ghosheh
- KAUST Environmental Epigenetic Program (KEEP), Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia.
| | - Pei-Yuan Qian
- KAUST Global Collaborative Research Program, Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong.
| | - Timothy Ravasi
- KAUST Environmental Epigenetic Program (KEEP), Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia. .,Division of Applied Mathematics and Computer Sciences, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia.
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He T, Jańczewski D, Jana S, Parthiban A, Guo S, Zhu X, Lee SSC, Parra-Velandia FJ, Teo SLM, Vancso GJ. Efficient and robust coatings using poly(2-methyl-2-oxazoline) and its copolymers for marine and bacterial fouling prevention. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27912] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Tao He
- Institute of Materials Research and Engineering; A*STAR (Agency for Science Technology and Research); 3 Research Link Singapore 117602 Singapore
| | - Dominik Jańczewski
- Institute of Materials Research and Engineering; A*STAR (Agency for Science Technology and Research); 3 Research Link Singapore 117602 Singapore
- Laboratory of Technological Processes, Faculty of Chemistry; Warsaw University of Technology; Noakowskiego 3 00-661 Warsaw Poland
| | - Satyasankar Jana
- Institute of Chemical and Engineering Sciences; A*STAR, 1; Pesek Road Jurong Island 627833 Singapore
| | - Anbanandam Parthiban
- Institute of Chemical and Engineering Sciences; A*STAR, 1; Pesek Road Jurong Island 627833 Singapore
| | - Shifeng Guo
- Institute of Materials Research and Engineering; A*STAR (Agency for Science Technology and Research); 3 Research Link Singapore 117602 Singapore
| | - Xiaoying Zhu
- Institute of Materials Research and Engineering; A*STAR (Agency for Science Technology and Research); 3 Research Link Singapore 117602 Singapore
| | - Serina Siew-Chen Lee
- Tropical Marine Science Institute; National University of Singapore; 18 Kent Ridge Road Singapore 119227 Singapore
| | - Fernando Jose Parra-Velandia
- Tropical Marine Science Institute; National University of Singapore; 18 Kent Ridge Road Singapore 119227 Singapore
| | - Serena Lay-Ming Teo
- Tropical Marine Science Institute; National University of Singapore; 18 Kent Ridge Road Singapore 119227 Singapore
| | - G. Julius Vancso
- Institute of Chemical and Engineering Sciences; A*STAR, 1; Pesek Road Jurong Island 627833 Singapore
- MESA+ Institute for Nanotechnology; Materials Science and Technology of Polymers, University of Twente; P.O. Box 217, 7500 AE Enschede The Netherlands
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Miao Y, Zhang L, Sun Y, Jiao W, Li Y, Sun J, Wang Y, Wang S, Bao Z, Liu W. Integration of Transcriptomic and Proteomic Approaches Provides a Core Set of Genes for Understanding of Scallop Attachment. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2015; 17:523-532. [PMID: 26017775 DOI: 10.1007/s10126-015-9635-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 04/15/2015] [Indexed: 06/04/2023]
Abstract
Attachment is an essential physiological process in life histories of many marine organisms. Using a combination of transcriptomic and proteomic approach, scallop byssal proteins (Sbps) and their associated regulatory network genes were investigated for the first time. We built the first scallop foot transcriptome library, and 75 foot-specific genes were identified. Through integration of transcriptomic-proteomic approach, seven unique Sbps were identified. Of them, three showed significant amino acid sequence homology to known proteins. In contrast, the rest did not show significant protein matches, indicating they are possibly novel proteins. Our transcriptomic and proteomic analyses also suggest that post-translational modification may be one of the significant features for Sbps as well. Taken together, our study provides the first multidimensional collection of a core set of genes that may be potentially involved in scallop byssal attachment.
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Affiliation(s)
- Yan Miao
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
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Raupach MJ, Barco A, Steinke D, Beermann J, Laakmann S, Mohrbeck I, Neumann H, Kihara TC, Pointner K, Radulovici A, Segelken-Voigt A, Wesse C, Knebelsberger T. The Application of DNA Barcodes for the Identification of Marine Crustaceans from the North Sea and Adjacent Regions. PLoS One 2015; 10:e0139421. [PMID: 26417993 PMCID: PMC4587929 DOI: 10.1371/journal.pone.0139421] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 09/14/2015] [Indexed: 12/02/2022] Open
Abstract
During the last years DNA barcoding has become a popular method of choice for molecular specimen identification. Here we present a comprehensive DNA barcode library of various crustacean taxa found in the North Sea, one of the most extensively studied marine regions of the world. Our data set includes 1,332 barcodes covering 205 species, including taxa of the Amphipoda, Copepoda, Decapoda, Isopoda, Thecostraca, and others. This dataset represents the most extensive DNA barcode library of the Crustacea in terms of species number to date. By using the Barcode of Life Data Systems (BOLD), unique BINs were identified for 198 (96.6%) of the analyzed species. Six species were characterized by two BINs (2.9%), and three BINs were found for the amphipod species Gammarus salinus Spooner, 1947 (0.4%). Intraspecific distances with values higher than 2.2% were revealed for 13 species (6.3%). Exceptionally high distances of up to 14.87% between two distinct but monophyletic clusters were found for the parasitic copepod Caligus elongatus Nordmann, 1832, supporting the results of previous studies that indicated the existence of an overlooked sea louse species. In contrast to these high distances, haplotype-sharing was observed for two decapod spider crab species, Macropodia parva Van Noort & Adema, 1985 and Macropodia rostrata (Linnaeus, 1761), underlining the need for a taxonomic revision of both species. Summarizing the results, our study confirms the application of DNA barcodes as highly effective identification system for the analyzed marine crustaceans of the North Sea and represents an important milestone for modern biodiversity assessment studies using barcode sequences.
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Affiliation(s)
- Michael J. Raupach
- German Center of Marine Biodiversity (DZMB), Senckenberg am Meer, Wilhelmshaven, Niedersachsen, Germany
- * E-mail:
| | - Andrea Barco
- German Center of Marine Biodiversity (DZMB), Senckenberg am Meer, Wilhelmshaven, Niedersachsen, Germany
| | - Dirk Steinke
- Biodiversity Institute of Ontario, University of Guelph, Guelph, Ontario, Canada
| | - Jan Beermann
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Biologische Anstalt Helgoland, Helgoland, Schleswig-Holstein, Germany
| | - Silke Laakmann
- German Center of Marine Biodiversity (DZMB), Senckenberg am Meer, Wilhelmshaven, Niedersachsen, Germany
| | - Inga Mohrbeck
- German Center of Marine Biodiversity (DZMB), Senckenberg am Meer, Wilhelmshaven, Niedersachsen, Germany
| | - Hermann Neumann
- Department for Marine Research, Senckenberg am Meer, Wilhelmshaven, Niedersachsen, Germany
| | - Terue C. Kihara
- German Center of Marine Biodiversity (DZMB), Senckenberg am Meer, Wilhelmshaven, Niedersachsen, Germany
| | - Karin Pointner
- German Center of Marine Biodiversity (DZMB), Senckenberg am Meer, Wilhelmshaven, Niedersachsen, Germany
| | - Adriana Radulovici
- Biodiversity Institute of Ontario, University of Guelph, Guelph, Ontario, Canada
| | - Alexandra Segelken-Voigt
- Animal Biodiversity and Evolutionary Biology, Institute for Biology and Environmental Sciences, V. School of Mathematics and Science, Carl von Ossietzky University Oldenburg, Oldenburg, Niedersachsen, Germany
| | - Christina Wesse
- German Center of Marine Biodiversity (DZMB), Senckenberg am Meer, Wilhelmshaven, Niedersachsen, Germany
| | - Thomas Knebelsberger
- German Center of Marine Biodiversity (DZMB), Senckenberg am Meer, Wilhelmshaven, Niedersachsen, Germany
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Overturf CL, Wormington AM, Blythe KN, Gohad NV, Mount AS, Roberts AP. Toxicity of noradrenaline, a novel anti-biofouling component, to two non-target zooplankton species, Daphnia magna and Ceriodaphnia dubia. Comp Biochem Physiol C Toxicol Pharmacol 2015; 171:49-54. [PMID: 25819741 DOI: 10.1016/j.cbpc.2015.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 01/23/2015] [Accepted: 01/27/2015] [Indexed: 01/28/2023]
Abstract
Noradrenaline (NA) is the active component of novel antifouling agents and acts by preventing attachment of fouling organisms. The goal of this study was to examine the toxicity of NA to the non-target zooplankton D. magna and C. dubia. Neonates were exposed to one of five concentrations of NA and effects on survival, reproduction and molting were determined. Calculated LC50 values were determined to be 46 and 38 μM in C. dubia and D. magna, respectively. A 10-day C. dubia study found that reproduction metrics were significantly impacted at non-lethal concentrations. In D. magna, concentrations greater than 40 μM significantly impacted molting. A toxicity test was conducted with D. magna using oxidized NA, which yielded similar results. These data indicate that both NA and oxidized NA are toxic to non-target zooplankton. Results obtained from this study can be used to guide future ecological risk assessments of catecholamine-based antifouling agents.
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Affiliation(s)
- C L Overturf
- Department of Biological Sciences & Institute of Applied Science, University of North Texas, 1155 Union Circle, Denton, TX, 76203, USA
| | - A M Wormington
- Department of Biological Sciences & Institute of Applied Science, University of North Texas, 1155 Union Circle, Denton, TX, 76203, USA
| | - K N Blythe
- Department of Biological Sciences & Institute of Applied Science, University of North Texas, 1155 Union Circle, Denton, TX, 76203, USA
| | - N V Gohad
- Department of Biological Sciences, Clemson University, Clemson, SC, 29634, USA
| | - A S Mount
- Department of Biological Sciences, Clemson University, Clemson, SC, 29634, USA
| | - A P Roberts
- Department of Biological Sciences & Institute of Applied Science, University of North Texas, 1155 Union Circle, Denton, TX, 76203, USA.
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Zhu X, Jańczewski D, Guo S, Lee SSC, Parra Velandia FJ, Teo SLM, He T, Puniredd SR, Vancso GJ. Polyion multilayers with precise surface charge control for antifouling. ACS APPLIED MATERIALS & INTERFACES 2015; 7:852-861. [PMID: 25485625 DOI: 10.1021/am507371a] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report on a molecular fabrication approach to precisely control surface ζ potentials of polymeric thin layers constructed by electrostatic layer-by-layer (LbL) assembly methods. The protocol established allows us to achieve surface isoelectric points (IEP) in the pH range of 6-10. Poly(acrylic acid) (PAA, a weak polyanion) and poly(diallyldimethylammonium chloride) (PDADMAC, a strong polycation) were chosen to build up the bulk films. The weak polycation polyethylenimine (PEI) was applied as a top layer. A unique feature of this approach is that the chemical composition of the top layer is not affected by the manipulation of the ζ potential of the films. Surface charge tuning is achieved by controlling the degree of ionization of the weak polyelectrolytes at various pH values and subsequent manipulation of the amount of polyelectrolyte deposited in the penultimate and last layers, respectively. Following assembly and characterization, the films were used as candidates for antifouling surfaces. The fouling behavior of barnacle cyprids and bacteria on the LbL films with similar hydrophilicity and roughness but different surface charge densities were studied. We found that more cyprids of Amphibalanus amphitrite settled on the negatively charged LbL film compared to the neutral or positively charged LbL film. In bacterial adhesion tests employing Pseudomonas, Escherichia coli, and Staphylococcus aureus, more bacteria were observed on the positively charged LbL film compared with the neutral and negatively charged LbL films, possibly as a result of the negative potential of the bacterial cell wall. The procedures proposed allow one to adjust surface isoelectric points of LbL architectures to achieve optimal antifouling performance of a given material taking into account specific pH values of the environment and the character of the fouler.
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Affiliation(s)
- Xiaoying Zhu
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology, and Research) , 3 Research Link, Singapore 117602
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44
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Shivapooja P, Wang Q, Szott LM, Orihuela B, Rittschof D, Zhao X, López GP. Dynamic surface deformation of silicone elastomers for management of marine biofouling: laboratory and field studies using pneumatic actuation. BIOFOULING 2015; 31:265-274. [PMID: 25917206 DOI: 10.1080/08927014.2015.1035651] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Many strategies have been developed to improve the fouling release (FR) performance of silicone coatings. However, biofilms inevitably build on these surfaces over time. Previous studies have shown that intentional deformation of silicone elastomers can be employed to detach biofouling species. In this study, inspired by the methods used in soft-robotic systems, controlled deformation of silicone elastomers via pneumatic actuation was employed to detach adherent biofilms. Using programmed surface deformation, it was possible to release > 90% of biofilm from surfaces in both laboratory and field environments. A higher substratum strain was required to remove biofilms accumulated in the field environment as compared with laboratory-grown biofilms. Further, the study indicated that substratum modulus influences the strain needed to de-bond biofilms. Surface deformation-based approaches have potential for use in the management of biofouling in a number of technological areas, including in niche applications where pneumatic actuation of surface deformation is feasible.
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Puniredd SR, Jańczewski D, Go DP, Zhu X, Guo S, Ming Teo SL, Chen Lee SS, Vancso GJ. Imprinting of metal receptors into multilayer polyelectrolyte films: fabrication and applications in marine antifouling. Chem Sci 2015; 6:372-383. [PMID: 28966763 PMCID: PMC5586206 DOI: 10.1039/c4sc02367f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 09/26/2014] [Indexed: 01/30/2023] Open
Abstract
Polymeric films constructed using the layer-by-layer (LbL) fabrication process were employed as a platform for metal ion immobilization and applied as a marine antifouling coating. The novel Cu2+ ion imprinting process described is based on the use of metal ion templates and LbL multilayer covalent cross-linking. Custom synthesized, peptide mimicking polycations composed of histidine grafted poly(allylamine) (PAH) to bind metal ions, and methyl ester containing polyanions for convenient cross-linking were used in the fabrication process. Two methods of LbL film formation have been investigated using alternate polyelectrolyte deposition namely non-imprinted LbLA, and imprinted LbLB. Both LbL films were cross linked at mild temperature to yield covalent bridging of the layers for improved stability in a sea water environment. A comparative study of the non-imprinted LbLA films and imprinted LbLB films for Cu2+ ion binding capacity, leaching rate and stability of the films was performed. The results reveal that the imprinted films possess enhanced affinity to retain metal ions due to the preorganization of imidazole bearing histidine receptors. As a result the binding capacity of the films for Cu2+ could be improved by seven fold. Antifouling properties of the resulting materials in a marine environment have been demonstrated against the settlement of barnacle larvae, indicating that controlled release of Cu ions was achieved.
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Affiliation(s)
- Sreenivasa Reddy Puniredd
- Institute of Materials Research and Engineering , ASTAR (Agency for Science, Technology and Research) , 3 Research Link , 117602 , Singapore . ; ; Tel: +65 6874 5443
| | - Dominik Jańczewski
- Institute of Materials Research and Engineering , ASTAR (Agency for Science, Technology and Research) , 3 Research Link , 117602 , Singapore . ; ; Tel: +65 6874 5443
| | - Dewi Pitrasari Go
- Institute of Materials Research and Engineering , ASTAR (Agency for Science, Technology and Research) , 3 Research Link , 117602 , Singapore . ; ; Tel: +65 6874 5443
| | - Xiaoying Zhu
- Institute of Materials Research and Engineering , ASTAR (Agency for Science, Technology and Research) , 3 Research Link , 117602 , Singapore . ; ; Tel: +65 6874 5443
| | - Shifeng Guo
- Institute of Materials Research and Engineering , ASTAR (Agency for Science, Technology and Research) , 3 Research Link , 117602 , Singapore . ; ; Tel: +65 6874 5443
| | - Serena Lay Ming Teo
- Tropical Marine Science Institute , National University of Singapore , 18 Kent Ridge Road , 119227 , Singapore
| | - Serina Siew Chen Lee
- Tropical Marine Science Institute , National University of Singapore , 18 Kent Ridge Road , 119227 , Singapore
| | - G Julius Vancso
- Institute of Chemical and Engineering Sciences , ASTAR , 1, Pesek Road , Jurong Island , 627833 , Singapore . ; ; Tel: +31 53 489 2974
- MESA+ Institute for Nanotechnology , Materials Science and Technology of Polymers , University of Twente , P.O. Box 217 , 7500 AE Enschede , The Netherlands
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Zhang G, He LS, Wong YH, Yu L, Qian PY. siRNA transfection in the barnacle Amphibalanus amphitrite larvae. J Exp Biol 2015; 218:2505-9. [DOI: 10.1242/jeb.120113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 06/15/2015] [Indexed: 01/20/2023]
Abstract
RNA interference (RNAi) provides an efficient and specific technique for functional genomic studies. Yet, no successful application of RNAi has been reported in barnacles. In this study, siRNA against p38 MAPK was synthesized and then transfected into A. amphitrite larvae at either nauplius or cyprid stage, or both. Effects of siRNA transfection on p38 MAPK level were hardly detectable in the cyprids that their corresponding nauplii were transfected. In contrast, larvae that were transfected at cyprid stage showed lower level of p38 MAPK than the blank and reagent controls. However, significantly decreased level of phosphorylated p38 MAPK (pp38 MAPK) and reduced settlement rate were observed only in the “Double Transfection”, in which larvae were exposed to siRNA solution at both the nauplius and cyprid stages. Relatively longer transfection time and more cells of the larvae exposed to siRNA directly might explain the higher efficiency in the “Double Transfection”.
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Affiliation(s)
- Gen Zhang
- Environmental Science Programs, School of Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
- KAUST Global Collaborative Research Program, Division of Life Science, School of Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Li-sheng He
- KAUST Global Collaborative Research Program, Division of Life Science, School of Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
- Sanya Institute of Deep-sea Science and Engineering, Chinese Academy of Science, No. 62, Fenghuang Road, Sanya City, Hainan Province, China, 572000
| | - Yue Him Wong
- KAUST Global Collaborative Research Program, Division of Life Science, School of Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Li Yu
- Environmental Science Programs, School of Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
- KAUST Global Collaborative Research Program, Division of Life Science, School of Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Pei-yuan Qian
- Environmental Science Programs, School of Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
- KAUST Global Collaborative Research Program, Division of Life Science, School of Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
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47
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Brzozowska AM, Parra-Velandia FJ, Quintana R, Xiaoying Z, Lee SSC, Chin-Sing L, Jańczewski D, Teo SLM, Vancso JG. Biomimicking micropatterned surfaces and their effect on marine biofouling. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:9165-75. [PMID: 25017490 DOI: 10.1021/la502006s] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
When synthetic materials are submerged in marine environments, dissolved matter and marine organisms attach to their surfaces by a process known as marine fouling. This phenomenon may lead to diminished material performance with detrimental consequences. Bioinspired surface patterning and chemical surface modifications present promising approaches to the design of novel functional surfaces that can prevent biofouling phenomena. In this study, we report the synergistic effects of surface patterns, inspired by the marine decapod crab Myomenippe hardwickii in combination with chemical surface modifications toward suppressing marine fouling. M. hardwickii is known to maintain a relatively clean carapace although the species occurs in biofouling communities of tropical shallow subtidal coastal waters. Following the surface analysis of selected specimens, we designed hierarchical surface microtopographies that replicate the critical features observed on the crustacean surface. The micropatterned surfaces were modified with zwitterionic polymer brushes or with layer-by-layer deposited polyelectrolyte multilayers to enhance their antifouling and/or fouling-release potential. Chemically modified and unmodified micropatterned surfaces were subjected to extensive fouling tests, including laboratory assays against barnacle settlement and algae adhesion, and field static immersion tests. The results show a statistically significant reduction in settlement on the micropatterned surfaces as well as a synergistic effect when the microtopographies are combined with grafted polymer chains.
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Affiliation(s)
- Agata M Brzozowska
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research , 3 Research Link, 117602 Singapore
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48
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First MR, Policastro SA, Strom MJ, Riley SC, Robbins-Wamsley SH, Drake LA. 3D imaging provides a high-resolution, volumetric approach for analyzing biofouling. BIOFOULING 2014; 30:685-693. [PMID: 24773276 DOI: 10.1080/08927014.2014.904293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A volumetric approach for determining the fouling burden on surfaces is presented, consisting of a 3D camera imaging system with fine (5 μm) resolution. Panels immersed in an estuary on the southwest coast of Florida, USA were imaged and the data were used to quantify seasonal changes in the biofouling community. Test panels, which were submerged in seawater for up to one year, were analyzed before and after gentle scrubbing to quantify the biovolume of the total fouling community (ie soft and hard organisms) and the hard fouling community. Total biofouling ranged from 0.01 to 1.16 cm(3) cm(-2) throughout the immersion period; soft fouling constituted 22-87% of the total biovolume. In the future, this approach may be used to inform numerical models of fluid-surface interfaces and to evaluate, with high resolution, the morphology of fouling organisms in response to antifouling technologies.
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49
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Antifouling activity of synthetic alkylpyridinium polymers using the barnacle model. Mar Drugs 2014; 12:1959-76. [PMID: 24699112 PMCID: PMC4012450 DOI: 10.3390/md12041959] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 02/26/2014] [Accepted: 02/26/2014] [Indexed: 01/11/2023] Open
Abstract
Polymeric alkylpyridinium salts (poly-APS) isolated from the Mediterranean marine sponge, Haliclona (Rhizoniera) sarai, effectively inhibit barnacle larva settlement and natural marine biofilm formation through a non-toxic and reversible mechanism. Potential use of poly-APS-like compounds as antifouling agents led to the chemical synthesis of monomeric and oligomeric 3-alkylpyridinium analogues. However, these are less efficient in settlement assays and have greater toxicity than the natural polymers. Recently, a new chemical synthesis method enabled the production of poly-APS analogues with antibacterial, antifungal and anti-acetylcholinesterase activities. The present study examines the antifouling properties and toxicity of six of these synthetic poly-APS using the barnacle (Amphibalanus amphitrite) as a model (cyprids and II stage nauplii larvae) in settlement, acute and sub-acute toxicity assays. Two compounds, APS8 and APS12-3, show antifouling effects very similar to natural poly-APS, with an anti-settlement effective concentration that inhibits 50% of the cyprid population settlement (EC₅₀) after 24 h of 0.32 mg/L and 0.89 mg/L, respectively. The toxicity of APS8 is negligible, while APS12-3 is three-fold more toxic (24-h LC₅₀: nauplii, 11.60 mg/L; cyprids, 61.13 mg/L) than natural poly-APS. This toxicity of APS12-3 towards nauplii is, however, 60-fold and 1200-fold lower than that of the common co-biocides, Zn- and Cu-pyrithione, respectively. Additionally, exposure to APS12-3 for 24 and 48 h inhibits the naupliar swimming ability with respective IC₅₀ of 4.83 and 1.86 mg/L.
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50
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Van Mooy BAS, Hmelo LR, Fredricks HF, Ossolinski JE, Pedler BE, Bogorff DJ, Smith PJS. Quantitative exploration of the contribution of settlement, growth, dispersal and grazing to the accumulation of natural marine biofilms on antifouling and fouling-release coatings. BIOFOULING 2014; 30:223-36. [PMID: 24417212 PMCID: PMC3935016 DOI: 10.1080/08927014.2013.861422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The accumulation of microbial biofilms on ships' hulls negatively affects ship performance and efficiency while also playing a role in the establishment of even more detrimental hard-fouling communities. However, there is little quantitative information on how the accumulation rate of microbial biofilms is impacted by the balance of the rates of cell settlement, in situ production (ie growth), dispersal to surrounding waters and mortality induced by grazers. These rates were quantified on test panels coated with copper-based antifouling (AF) or polymer-based fouling-release (FR) coatings by using phospholipids as molecular proxies for microbial biomass. The results confirmed the accepted modes of efficacy of these two types of coatings. In a more extensive set of experiments with only the FR coatings, it was found that seasonally averaged cellular production rates were 1.5 ± 0.5 times greater than settlement and the dispersal rates were 2.7 ± 0.8 greater than grazing. The results of this study quantitatively describe the dynamic balance of processes leading to the accumulation of microbial biofilm on coatings designed for ships' hulls.
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Affiliation(s)
- Benjamin A S Van Mooy
- a Department of Marine Chemistry and Geochemistry , Woods Hole Oceanographic Institution , Woods Hole , MA , USA
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