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Sertić Kovačević M, Baričević A, Kružić P, Maurić Maljković M, Hamer B. Barcoding ( COI) Sea Cucumber Holothuria mammata Distribution Analysis: Adriatic Rare or Common Species? Genes (Basel) 2023; 14:2059. [PMID: 38003002 PMCID: PMC10671717 DOI: 10.3390/genes14112059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
The overexploitation of the western Pacific Ocean has expanded the sea cucumber fishery into new regions to supply the Asian market. In 2013, sea cucumbers were removed from the Croatian marine protected species list, and commercial fishery took place for a short period (2017-2018) in the Eastern Adriatic Sea. However, holothuroid species are difficult to distinguish. Holothuria mammata is a species that has rarely been reported in this region and strongly resembles the common species Holothuria tubulosa. This is the first study to assess the genetic diversity of sea cucumbers in the Adriatic Sea using genetic barcoding of the mitochondrial gene cytochrome c oxidase subunit 1 (COI). Specimens for barcoding were collected from the northern and central Adriatic, along with a specimen that had been previously identified as H. sp. cf. mammata based on its morphological characteristics. While genetic analyses showed identified this specimen as H. tubulosa, 30% of the collected specimens were genetically identified as H. mammata. These results call into question the historically accepted sea cucumber assemblage in the Adriatic Sea, which regarded H. mammata as a rare species and generally disregarded its presence in large census studies. Such species distribution data are extremely important in developing and monitoring a sustainable fishery.
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Affiliation(s)
- Maya Sertić Kovačević
- Laboratory for Marine Biology, Department of Zoology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia; (M.S.K.); (P.K.)
- Laboratory for Marine Nanotechnology and Biotechnology, Center for Marine Research, Ruđer Bošković Institute, Giordano Paliaga 5, 52210 Rovinj, Croatia
| | - Ana Baričević
- Laboratory for Evolutionary Ecology, Center for Marine Research, Ruđer Bošković Institute, Giordano Paliaga 5, 52210 Rovinj, Croatia;
| | - Petar Kružić
- Laboratory for Marine Biology, Department of Zoology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia; (M.S.K.); (P.K.)
| | - Maja Maurić Maljković
- Laboratory for Marine Nanotechnology and Biotechnology, Center for Marine Research, Ruđer Bošković Institute, Giordano Paliaga 5, 52210 Rovinj, Croatia
- Department of Animal Breeding and Livestock Production, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
| | - Bojan Hamer
- Laboratory for Marine Nanotechnology and Biotechnology, Center for Marine Research, Ruđer Bošković Institute, Giordano Paliaga 5, 52210 Rovinj, Croatia
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Grižančić L, Baričević A, Smodlaka Tanković M, Vlašiček I, Knjaz M, Podolšak I, Kogovšek T, Pfannkuchen MA, Marić Pfannkuchen D. A metabarcode based (species) inventory of the northern Adriatic phytoplankton. Biodivers Data J 2023; 11:e106947. [PMID: 38318520 PMCID: PMC10840511 DOI: 10.3897/bdj.11.e106947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/29/2023] [Indexed: 02/07/2024] Open
Abstract
Background The northern Adriatic is characterised as the coldest and most productive marine area of the Mediterranean, which is due to high nutrient levels introduced by river discharges, the largest of which is the Italian Po River (at the same time also the largest freshwater input into the Mediterranean). The northern Adriatic is a very shallow marine ecosystem with ocean current patterns that result in long retention times of plankton in the area. The northern Adriatic phytoplankton biodiversity and abundance are well-studied, through many scientific and long-term monitoring reports. These datasets were based on phytoplankton morphological traits traditionally obtained with light microscopy. The most recent comprehensive eastern Adriatic phytoplankton checklist was published more than 20 years ago and is still valuable today. Since phytoplankton taxonomy and systematics are constantly being reviewed (partly also due to new molecular methods of species identification that complement classical methodologies), checklists need to be updated and complemented. Today, metabarcoding of molecular markers gains more and more importance in biodiversity research and monitoring. Here, we report the use of high throughput sequencing methods to re-examine taxonomic richness and provide updated knowledge of phytoplankton diversity in the eastern northern Adriatic to complement the standardised light microscopy method. New information This study aimed to report an up-to-date list of the phytoplankton taxonomic richness and phylogenetic relationships in the eastern northern Adriatic, based on sequence variability of barcoding genes resolved with advanced molecular tools, namely metabarcoding. Here, metabarcoding is used to complement standardised light microscopy to advance conventional monitoring and research of phytoplankton communities for the purpose of assessing biodiversity and the status of the marine environments. Monthly two-year net sampling targeted six phytoplankton groups including Bacillariophyceae (diatoms) and Chrysophyceae (golden algae) belonging to Ochrophyta, Dinophyceae (dinoflagellates), Cryptophyceae (cryptophytes), Haptophyta (mostly coccolithophorids) and Chlorophyta with Prasinophyceae (prasinophytes) and Chlorophyceae (protist green algae). Generated sequence data were taxonomically assigned and redistributed in two kingdoms, five classes, 32 orders, 49 families and 67 genera. The most diverse group were dinoflagellates, comprising of 34 found genera (48.3%), following by diatoms with 23 (35.4%) and coccolithophorids with three genera (4.0%). In terms of genetic diversity, results were a bit different: a great majority of sequences with one nucleotide tolerance (ASVs, Amplicon sequence variants) assigned to species or genus level were dinoflagellates (83.8%), 13.7% diatoms and 1.6% Chlorophyta, respectively. Although many taxa have not been detected that have been considered as common in this area, metabarcoding revealed five diatoms and 20 dinoflagellate genera that were not reported in previous checklists, along with a few species from other targeted groups that have been reported previously. We here describe the first comprehensive 18S metabarcode inventory for the northern Adriatic Sea.
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Affiliation(s)
- Lana Grižančić
- Ruder Boskovic Institute, Centre for Marine Research, Rovinj-Rovigno, CroatiaRuder Boskovic Institute, Centre for Marine ResearchRovinj-RovignoCroatia
| | - Ana Baričević
- Ruder Boskovic Institute, Centre for Marine Research, Rovinj-Rovigno, CroatiaRuder Boskovic Institute, Centre for Marine ResearchRovinj-RovignoCroatia
| | - Mirta Smodlaka Tanković
- Ruder Boskovic Institute, Centre for Marine Research, Rovinj-Rovigno, CroatiaRuder Boskovic Institute, Centre for Marine ResearchRovinj-RovignoCroatia
| | - Ivan Vlašiček
- Ruder Boskovic Institute, Centre for Marine Research, Rovinj-Rovigno, CroatiaRuder Boskovic Institute, Centre for Marine ResearchRovinj-RovignoCroatia
| | - Mia Knjaz
- Ruder Boskovic Institute, Centre for Marine Research, Rovinj-Rovigno, CroatiaRuder Boskovic Institute, Centre for Marine ResearchRovinj-RovignoCroatia
| | - Ivan Podolšak
- Ruder Boskovic Institute, Centre for Marine Research, Rovinj-Rovigno, CroatiaRuder Boskovic Institute, Centre for Marine ResearchRovinj-RovignoCroatia
| | - Tjaša Kogovšek
- Ruder Boskovic Institute, Centre for Marine Research, Rovinj-Rovigno, CroatiaRuder Boskovic Institute, Centre for Marine ResearchRovinj-RovignoCroatia
| | - Martin Andreas Pfannkuchen
- Ruder Boskovic Institute, Centre for Marine Research, Rovinj-Rovigno, CroatiaRuder Boskovic Institute, Centre for Marine ResearchRovinj-RovignoCroatia
| | - Daniela Marić Pfannkuchen
- Ruder Boskovic Institute, Centre for Marine Research, Rovinj-Rovigno, CroatiaRuder Boskovic Institute, Centre for Marine ResearchRovinj-RovignoCroatia
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3
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Smodlaka Tanković M, Baričević A, Gerić M, Domijan AM, Pfannkuchen DM, Kužat N, Ujević I, Kuralić M, Rožman M, Matković K, Novak M, Žegura B, Pfannkuchen M, Gajski G. Characterisation and toxicological activity of three different Pseudo-nitzschia species from the northern Adriatic Sea (Croatia). Environ Res 2022; 214:114108. [PMID: 35985485 DOI: 10.1016/j.envres.2022.114108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/28/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
Diatoms of the genus Pseudo-nitzschia are cosmopolitans spread in seas and oceans worldwide, with more than 50 described species, dozens of which have been confirmed to produce domoic acid (DA). Here, we characterized and investigated the toxicological activity of secondary metabolites excreted into the growth media of different Pseudo-nitzschia species sampled at various locations in the northern Adriatic Sea (Croatia) using human blood cells under in vitro conditions. The results revealed that three investigated species of the genus Pseudo-nitzschia were capable of producing DA indicating their toxic potential. Moreover, toxicological data suggested all three Pseudo-nitzschia species can excrete toxic secondary metabolites into the surrounding media in addition to the intracellular pools of DA, raising concerns regarding their toxicity and environmental impact. In addition, all three Pseudo-nitzchia species triggered oxidative stress, one of the mechanisms of action likely responsible for the DNA damage observed in human blood cells. In line with the above stated, our results are of great interest to environmental toxicologists, the public and policy makers, especially in light of today's climate change, which favours harmful algal blooms and the growth of DA producers with a presumed negative impact on the public health of coastal residents.
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Affiliation(s)
| | - Ana Baričević
- Center for Marine Research, Ruđer Bošković Institute, 52210 Rovinj, Croatia
| | - Marko Gerić
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, 10000 Zagreb, Croatia
| | - Ana-Marija Domijan
- Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia
| | | | - Nataša Kužat
- Center for Marine Research, Ruđer Bošković Institute, 52210 Rovinj, Croatia
| | - Ivana Ujević
- Laboratory of Plankton and Shellfish Toxicity, Institute of Oceanography and Fisheries, 21000 Split, Croatia
| | - Melissa Kuralić
- Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia
| | - Marko Rožman
- Laboratory for Mass Spectrometry and Functional Proteomics, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Katarina Matković
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, 10000 Zagreb, Croatia
| | - Matjaž Novak
- Department for Genetic Toxicology and Cancer Biology, National Institute of Biology, 1000 Ljubljana, Slovenia
| | - Bojana Žegura
- Department for Genetic Toxicology and Cancer Biology, National Institute of Biology, 1000 Ljubljana, Slovenia
| | - Martin Pfannkuchen
- Center for Marine Research, Ruđer Bošković Institute, 52210 Rovinj, Croatia
| | - Goran Gajski
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, 10000 Zagreb, Croatia.
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Baričević A, Didulica K, Frančić Smrkić M, Jelčić Rukavina M. Cementitious Composites Reinforced with Waste Fibres from the Production of High-Quality Construction Textiles. Materials (Basel) 2022; 15:ma15041611. [PMID: 35208151 PMCID: PMC8875692 DOI: 10.3390/ma15041611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/03/2022] [Accepted: 02/17/2022] [Indexed: 02/01/2023]
Abstract
In general, 20–25% of the original fibre weight is considered waste in the production of high-quality textiles for the construction sector. A market analysis has shown that in the Republic of Croatia alone, up to 327 tonnes of this waste is produced annually, which is enough to reinforce 50 to 150 thousand m3 of cementitious composites. This preliminary study aims to evaluate the contribution of glass, basalt and carbon fibres generated as waste in the local production of high-performance technical textiles, to the fresh and hardened properties of fibre reinforced mortars. In order to investigate the influence of fibres, three types of fibres in two different lengths (5 and 10 mm) were used, while the amount of fibres was constant. The obtained results show that due to the fibre presence, workability is reduced regardless of the type and length of the fibre. The tested fibres have a negligible effect on compressive strength, but the use of basalt and carbon fibres increases the tensile strength. Furthermore, all three types have positive influence on the toughness and volumetric deformations, although to a greater extent in the use of 10 mm long fibres and carbon fibres.
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Affiliation(s)
- Ana Baričević
- Department of Materials, Faculty of Civil Engineering, University of Zagreb, 10000 Zagreb, Croatia; (K.D.); (M.J.R.)
- Correspondence:
| | - Katarina Didulica
- Department of Materials, Faculty of Civil Engineering, University of Zagreb, 10000 Zagreb, Croatia; (K.D.); (M.J.R.)
| | - Marina Frančić Smrkić
- Department of Technical Mechanics, Faculty of Civil Engineering, University of Zagreb, 10000 Zagreb, Croatia;
| | - Marija Jelčić Rukavina
- Department of Materials, Faculty of Civil Engineering, University of Zagreb, 10000 Zagreb, Croatia; (K.D.); (M.J.R.)
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Gojević A, Ducman V, Netinger Grubeša I, Baričević A, Banjad Pečur I. The Effect of Crystalline Waterproofing Admixtures on the Self-Healing and Permeability of Concrete. Materials (Basel) 2021; 14:ma14081860. [PMID: 33918567 PMCID: PMC8069652 DOI: 10.3390/ma14081860] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 11/16/2022]
Abstract
This paper investigates the effectiveness of a specific crystalline waterproofing admixture (CWA) in concrete as a function of a water-binder ratio. Four concrete mixes with and without CWA were prepared; two of them with a water-binder ratio of 0.45 and two of them with a water-binder ratio of 0.55. Water permeability and compressive strength were tested on hardened concrete specimens and self-healing of cracks over time was observed. Cement paste and CWA paste were prepared to clarify the results obtained on the concrete specimens. SEM and EDS and XRD and FTIR were performed on the hardened pastes to explain the mechanism of CWA working. The results show that the addition of CWA had no significant effect on the compressive strength of the concrete, but reduced the water penetration depth in the concrete, and the reduction was more effective for mixes with lower water-binder ratio. Regarding the self-healing effect, it can be concluded that the addition of CWA improves the crack healing in concrete, but the efficiency of self-healing is highly dependent on the initial crack width. The mechanisms involved in the reduction of water penetration depth and crack healing in concrete can be explained by different mechanisms; one is creation of the CSH gel from unreacted clinker grains, then formation carbonate, and additional mechanism is gel formation (highly expansive Mg-rich hydro-carbonate) from magnesium based additives. The presence of sodium silicate, which would transform into carbonate/bicarbonate, also cannot be excluded.
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Affiliation(s)
- Anita Gojević
- Faculty of Civil Engineering and Architecture Osijek, University Josip Juraj Strossmayer of Osijek, Vladimir Prelog Street 3, 31000 Osijek, Croatia;
| | - Vilma Ducman
- Slovenian National Building and Civil Engineering Institute, Dimičeva 12, 1000 Ljubljana, Slovenia;
| | - Ivanka Netinger Grubeša
- Faculty of Civil Engineering and Architecture Osijek, University Josip Juraj Strossmayer of Osijek, Vladimir Prelog Street 3, 31000 Osijek, Croatia;
- Correspondence: ; Tel.: +385-31540070
| | - Ana Baričević
- Faculty of Civil Engineering, University of Zagreb, Andrija Kačić Miošić Street 26, 10000 Zagreb, Croatia; (A.B.); (I.B.P.)
| | - Ivana Banjad Pečur
- Faculty of Civil Engineering, University of Zagreb, Andrija Kačić Miošić Street 26, 10000 Zagreb, Croatia; (A.B.); (I.B.P.)
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6
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Baričević A, Carević I, Bajto JŠ, Štirmer N, Bezinović M, Kristović K. Potential of Using Wood Biomass Ash in Low-Strength Composites. Materials (Basel) 2021; 14:ma14051250. [PMID: 33800738 PMCID: PMC7961552 DOI: 10.3390/ma14051250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 11/25/2022]
Abstract
Reducing greenhouse gas emissions and dependence on fossil fuels is the cornerstone of all European climate and energy strategies. Consequently, renewable energy sources are becoming more competitive with fossil fuels. The largest source of bioenergy in the European Union is biomass-fired power plants. Therefore, the European coal phase-out strategy led to an increased use of wood biomass as a sustainable fuel, generating large amounts of wood biomass ash (WBA). In the research studies reported so far, WBA has been mainly used in cementitious composites. However, given the similarities between the chemical composition of WBA and hydraulic lime (HL), this research focused on its potential classification as a building lime. Overall, three different sources of fly WBA were considered for the preparation of binders as mixtures of WBA and coal fly ash (CFA) in different ratios. The contribution of each binder mixture on the paste and mortar properties was analyzed based on the chemical composition, setting time, volume stability, and contribution to the mortar strength (compressive and flexural). In general, it can be concluded that the studied binders can meet the criteria of EN 459-1. However, special attention should be paid to the volume deformations and the setting time.
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Affiliation(s)
- Ana Baričević
- Department of Materials, Faculty of Civil Engineering, University of Zagreb, Fra Andrije Kačića Miošića 26, 10000 Zagreb, Croatia; (I.C.); (J.Š.B.); (N.Š.); (M.B.)
- Correspondence: ; Tel.: +385-1-4639-536
| | - Ivana Carević
- Department of Materials, Faculty of Civil Engineering, University of Zagreb, Fra Andrije Kačića Miošića 26, 10000 Zagreb, Croatia; (I.C.); (J.Š.B.); (N.Š.); (M.B.)
| | - Jelena Šantek Bajto
- Department of Materials, Faculty of Civil Engineering, University of Zagreb, Fra Andrije Kačića Miošića 26, 10000 Zagreb, Croatia; (I.C.); (J.Š.B.); (N.Š.); (M.B.)
| | - Nina Štirmer
- Department of Materials, Faculty of Civil Engineering, University of Zagreb, Fra Andrije Kačića Miošića 26, 10000 Zagreb, Croatia; (I.C.); (J.Š.B.); (N.Š.); (M.B.)
| | - Marija Bezinović
- Department of Materials, Faculty of Civil Engineering, University of Zagreb, Fra Andrije Kačića Miošića 26, 10000 Zagreb, Croatia; (I.C.); (J.Š.B.); (N.Š.); (M.B.)
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Bailet B, Apothéloz-Perret-Gentil L, Baričević A, Chonova T, Franc A, Frigerio JM, Kelly M, Mora D, Pfannkuchen M, Proft S, Ramon M, Vasselon V, Zimmermann J, Kahlert M. Diatom DNA metabarcoding for ecological assessment: Comparison among bioinformatics pipelines used in six European countries reveals the need for standardization. Sci Total Environ 2020; 745:140948. [PMID: 32736102 DOI: 10.1016/j.scitotenv.2020.140948] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/09/2020] [Accepted: 07/11/2020] [Indexed: 06/11/2023]
Abstract
Ecological assessment of lakes and rivers using benthic diatom assemblages currently requires considerable taxonomic expertise to identify species using light microscopy. This traditional approach is also time-consuming. Diatom metabarcoding is a promising alternative and there is increasing interest in using this approach for routine assessment. However, until now, analysis protocols for diatom metabarcoding have been developed and optimised by research groups working in isolation. The diversity of existing bioinformatics methods highlights the need for an assessment of the performance and comparability of results of different methods. The aim of this study was to test the correspondence of outputs from six bioinformatics pipelines currently in use for diatom metabarcoding in different European countries. Raw sequence data from 29 biofilm samples were treated by each of the bioinformatics pipelines, five of them using the same curated reference database. The outputs of the pipelines were compared in terms of sequence unit assemblages, taxonomic assignment, biotic index score and ecological assessment outcomes. The three last components were also compared to outputs from traditional light microscopy, which is currently accepted for ecological assessment of phytobenthos, as required by the Water Framework Directive. We also tested the performance of the pipelines on the two DNA markers (rbcL and 18S-V4) that are currently used by the working groups participating in this study. The sequence unit assemblages produced by different pipelines showed significant differences in terms of assigned and unassigned read numbers and sequence unit numbers. When comparing the taxonomic assignments at genus and species level, correspondence of the taxonomic assemblages between pipelines was weak. Most discrepancies were linked to differential detection or quantification of taxa, despite the use of the same reference database. Subsequent calculation of biotic index scores also showed significant differences between approaches, which were reflected in the final ecological assessment. Use of the rbcL marker always resulted in better correlation among molecular datasets and also in results closer to these generated using traditional microscopy. This study shows that decisions made in pipeline design have implications for the dataset's structure and the taxonomic assemblage, which in turn may affect biotic index calculation and ecological assessment. There is a need to define best-practice bioinformatics parameters in order to ensure the best representation of diatom assemblages. Only the use of similar parameters will ensure the compatibility of data from different working groups. The future of diatom metabarcoding for ecological assessment may also lie in the development of new metrics using, for example, presence/absence instead of relative abundance data.
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Affiliation(s)
- Bonnie Bailet
- Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment, PO Box 7050, SE - 750 07 Uppsala, Sweden.
| | | | - Ana Baričević
- Center for Marine Research, Ruđer Bosˇković Institute, Rovinj, Croatia.
| | - Teofana Chonova
- Research Department for Limnology, Mondsee, Faculty of Biology, University of Innsbruck, Mondsee, Austria; CARRTEL, French National Institute for Agricultural Research (INRA), University of Savoie Mont Blanc, 75 bis avenue de Corzent, 74200 Thonon-les-Bains, France.
| | - Alain Franc
- BioGeCo, French National Institute for Agricultural Research (INRA), 69 route d'Arcachon, 33610 Cesta, France.
| | - Jean-Marc Frigerio
- BioGeCo, French National Institute for Agricultural Research (INRA), 69 route d'Arcachon, 33610 Cesta, France.
| | - Martyn Kelly
- Bowburn Consultancy, 11 Monteigne Drive, Bowburn, Durham DH6 5QB, UK; School of Geography, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Demetrio Mora
- Botanic Garden and Botanical Museum Berlin-Dahlem, Freie Universität Berlin, Königin-Luise-Str. 6-8, 14195 Berlin, Germany.
| | | | - Sebastian Proft
- Botanic Garden and Botanical Museum Berlin-Dahlem, Freie Universität Berlin, Königin-Luise-Str. 6-8, 14195 Berlin, Germany
| | | | - Valentin Vasselon
- AFB, Pôle R&D "ECLA", INRA, UMR CARRTEL, 75bis av. de Corzent - CS 50511, FR-74200 Thonon-les-Bains, France
| | - Jonas Zimmermann
- Botanic Garden and Botanical Museum Berlin-Dahlem, Freie Universität Berlin, Königin-Luise-Str. 6-8, 14195 Berlin, Germany.
| | - Maria Kahlert
- Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment, PO Box 7050, SE - 750 07 Uppsala, Sweden.
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Grubor M, Štirmer N, Jelčić Rukavina M, Baričević A. Effect of Recycled Tire Polymer Fibers on Autogenous Deformation of Self-Compacting Concrete. RILEM Tech Lett 2020. [DOI: 10.21809/rilemtechlett.2020.115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Self-compacting concrete requires a special composition with an increased proportion of fine particles and larger volumes of paste compared to traditional vibrated concrete. Larger volumes of paste increase autogenous deformation, which can cause microcracking of concrete. The aim of this paper is to research the possibility of using recycled polymer fibers obtained from end-of-life tires to prevent micro cracking due to autogenous deformation in self-compacting concrete. Mixes of self-compacting concrete containing 1 and 2 kg/m3 of recycled tire polymer fibers and reference mixes were prepared and tested. Beside autogenous deformation, fresh state properties as well as compressive strength at the age of 3, 7 and 28 days were tested. The results of the performed laboratory tests indicate that the use of recycled tire polymer fibers is effective for the reduction of early autogenous deformation with insignificant difference in compressive strength at tested ages.
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Smodlaka Tanković M, Baričević A, Ivančić I, Kužat N, Medić N, Pustijanac E, Novak T, Gašparović B, Marić Pfannkuchen D, Pfannkuchen M. Insights into the life strategy of the common marine diatom Chaetoceros peruvianus Brightwell. PLoS One 2018; 13:e0203634. [PMID: 30208090 PMCID: PMC6135401 DOI: 10.1371/journal.pone.0203634] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 08/23/2018] [Indexed: 11/18/2022] Open
Abstract
Chaetoceros peruvianus is a marine diatom species with circumglobal distribution. While frequently observed, it appears never to dominate the marine phytoplankton community hence it can be characterized as a rather opportunistic, generalistic species. Here we present ecological interpretations from a long-term data set on marine microphytoplankton in the northern Adriatic Sea, where the abundancies and relative contributions of C. peruvianus were observed along a set of steep ecological gradients. Limited supply of dissolved inorganic phosphate was identified as the driving ecological factor for this ecosystem. In parallel C. peruvianus was cultivated in monoclonal cultures and its morphological and physiological reaction to replete and phosphorus depleted medium was analysed. C. peruvianus reacted to phosphorus depletion by an increase in cell height and length as well as thickness and length of setae. This morphological reaction included an increase in cellular volume and calculated carbon content. Additionally, it represents the transition between two described morphological varieties, C. peruvianus and C. peruvianus var. robusta. C. peruvianus showed a significant induction of extracellular alkaline phosphatase activity if grown in phosphate depleted medium. Microscopical analysis demonstrated this activity to be located exclusively on the setae of the cells.
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Affiliation(s)
| | - Ana Baričević
- Center for Marine Research, Ruđer Bošković Institute, Rovinj, Croatia
- * E-mail:
| | - Ingrid Ivančić
- Center for Marine Research, Ruđer Bošković Institute, Rovinj, Croatia
| | - Nataša Kužat
- Center for Marine Research, Ruđer Bošković Institute, Rovinj, Croatia
| | - Nikola Medić
- Center for Marine Research, Ruđer Bošković Institute, Rovinj, Croatia
- Department of Biology, University of Copenhagen, Helsingør, Denmark
| | - Emina Pustijanac
- Department for Natural and Health Sciences, Juraj Dobrila University of Pula, Pula, Croatia
| | - Tihana Novak
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Zagreb, Croatia
| | - Blaženka Gašparović
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Zagreb, Croatia
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Marić Pfannkuchen D, Godrijan J, Smodlaka Tanković M, Baričević A, Kužat N, Djakovac T, Pustijanac E, Jahn R, Pfannkuchen M. The Ecology of One Cosmopolitan, One Newly Introduced and One Occasionally Advected Species from the Genus Skeletonema in a Highly Structured Ecosystem, the Northern Adriatic. Microb Ecol 2018; 75:674-687. [PMID: 28951994 DOI: 10.1007/s00248-017-1069-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 09/05/2017] [Indexed: 06/07/2023]
Abstract
The diatom genus Skeletonema is globally distributed and often an important constituent of the phytoplankton community. In the marine phytoplankton of the northern Adriatic Sea, we found three species of the genus Skeletonema: Skeletonema menzelii, Skeletonema marinoi and Skeletonema grevillei. Making use of the steep ecological gradients that characterise the northern Adriatic, along which we could observe those species, we report here on the ecological circumstances under which those species thrive and how their respective populations are globally connected. This is the first detailed ecological study for the species S. grevillei. This study is also the first report for S. grevillei for the Adriatic Sea and Mediterranean together with additional electron microscopic details on fresh in situ samples for this species. S. marinoi appears to clearly prefer strong freshwater influence and high nutrient concentrations delivered by low salinity waters. It can outcompete other diatom species and dominate microphytoplankton blooms. S. grevillei on the other hand appears to thrive in high nutrient concentrations triggered by water column mixing. It also appears to prefer higher salinity waters and coastal embayments. Genetic analysis of S. grevillei demonstrated a peculiar dissimilarity with isolates from coastal waters off Yemen, India, Oman and China. However, a closely related sequence was isolated from coastal waters off Japan. These results indicate that S. grevillei is an introduced species, possibly transported by ballast waters. S. menzelii is a sporadic visitor in the northern Adriatic, advected from rather oligotrophic middle Adriatic waters and never dominates the phytoplankton community in the northern Adriatic.
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Affiliation(s)
| | - Jelena Godrijan
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, Zagreb, Croatia
| | - Mirta Smodlaka Tanković
- Ruđer Bošković Institute, Center for Marine Research, G. Paliaga 5, HR-52210, Rovinj, Croatia
| | - Ana Baričević
- Ruđer Bošković Institute, Center for Marine Research, G. Paliaga 5, HR-52210, Rovinj, Croatia
| | - Nataša Kužat
- Ruđer Bošković Institute, Center for Marine Research, G. Paliaga 5, HR-52210, Rovinj, Croatia
| | - Tamara Djakovac
- Ruđer Bošković Institute, Center for Marine Research, G. Paliaga 5, HR-52210, Rovinj, Croatia
| | - Emina Pustijanac
- Department for Natural and Health Sciences, Juraj Dobrila University of Pula, Zagrebačka 30, HR-52100, Pula, Croatia
| | - Regina Jahn
- Botanischer Garten und Botanisches Museum Berlin-Dahlem, Freie Universität Berlin, Königin-Luise-Str.6-8, Berlin, Germany
| | - Martin Pfannkuchen
- Ruđer Bošković Institute, Center for Marine Research, G. Paliaga 5, HR-52210, Rovinj, Croatia.
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Baričević A, Štifanić M, Hamer B, Batel R. p63 gene structure in the phylum mollusca. Comp Biochem Physiol B Biochem Mol Biol 2015; 186:51-8. [PMID: 25936268 DOI: 10.1016/j.cbpb.2015.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 04/22/2015] [Accepted: 04/22/2015] [Indexed: 11/26/2022]
Abstract
Roles of p53 family ancestor (p63) in the organisms' response to stressful environmental conditions (mainly pollution) have been studied among molluscs, especially in the genus Mytilus, within the last 15 years. Nevertheless, information about gene structure of this regulatory gene in molluscs is scarce. Here we report the first complete genomic structure of the p53 family orthologue in the mollusc Mediterranean mussel Mytilus galloprovincialis and confirm its similarity to vertebrate p63 gene. Our searches within the available molluscan genomes (Aplysia californica, Lottia gigantea, Crassostrea gigas and Biomphalaria glabrata), found only one p53 family member present in a single copy per haploid genome. Comparative analysis of those orthologues, additionally confirmed the conserved p63 gene structure. Conserved p63 gene structure can be a helpful tool to complement or/and revise gene annotations of any future p63 genomic sequence records in molluscs, but also in other animal phyla. Knowledge of the correct gene structure will enable better prediction of possible protein isoforms and their functions. Our analyses also pointed out possible mis-annotations of the p63 gene in sequenced molluscan genomes and stressed the value of manual inspection (based on alignments of cDNA and protein onto the genome sequence) for a reliable and complete gene annotation.
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Affiliation(s)
- Ana Baričević
- Ruđer Boskovic Institute, Center for Marine Research, Giordano Paliaga 5, 52210 Rovinj, Croatia.
| | | | - Bojan Hamer
- Ruđer Boskovic Institute, Center for Marine Research, Giordano Paliaga 5, 52210 Rovinj, Croatia.
| | - Renato Batel
- Ruđer Boskovic Institute, Center for Marine Research, Giordano Paliaga 5, 52210 Rovinj, Croatia.
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