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Lester RE, Macqueen A, Armstrong EK, Dodemaide DT, Dwyer GK, Mock TS, Payne S, Smith M, Storen M, Webb L. Can freshwater plants and algae act as an effective feed supplement to reduce methane emissions from ruminant livestock? THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169296. [PMID: 38104811 DOI: 10.1016/j.scitotenv.2023.169296] [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: 09/01/2023] [Revised: 12/08/2023] [Accepted: 12/09/2023] [Indexed: 12/19/2023]
Abstract
Methane production by livestock is a substantial component of greenhouse gas emissions worldwide. The marine red algae, Asparagopsis taxiformis, has been identified as a possible supplement in livestock feeds due to its potent inhibition of methane production but currently is unable to be produced at scale. Finding additional taxa that inhibit methane production is therefore desirable. Here we provide foundational evidence of methanogenesis-inhibiting properties in Australian freshwater plants and algae, reviewing candidate species and testing species' chemical composition and efficacy in vitro. Candidate plant species and naturally-occurring algal mixes were collected and assessed for ability to reduce methane in batch testing and characterised for biochemical composition, lipids and fatty acids, minerals and DNA. We identified three algal mixes and one plant (Montia australasica) with potential to reduce methane yield in in vitro batch assay trials. All three algal mixes contained Spirogyra, although additional testing would be needed to confirm this alga was responsible for the observed activity. For the two samples that underwent multiple dose testing, Algal mix 1 (predominantly Spirogyra maxima) and M. australasica, there seems to be an optimum dose but sources, harvesting and storage conditions potentially determine their methanogenesis-inhibiting activity. Based on their compositions, fatty acids are likely to be acting to reduce methane in Algal mix 1 while M. australasica likely contains substantial amounts of the flavonoids apigenin and kaempferol, which are associated with methane reduction. Based on their mineral composition, the samples tested would be safe for livestock consumption at an inclusion rate of 20%. Thus, we identified multiple Australian species that have potential to be used as a feed supplement to reduce methane yield in livestock which may be suitable for individual farmers to grow and feed, reducing complexities of supply associated with marine alternatives and suggesting avenues for investigation for similar species elsewhere.
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Affiliation(s)
- Rebecca E Lester
- Centre for Regional and Rural Futures, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia.
| | - Ashley Macqueen
- Centre for Regional and Rural Futures, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia
| | - Emily K Armstrong
- Centre for Regional and Rural Futures, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia
| | - David T Dodemaide
- Centre for Regional and Rural Futures, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia
| | - Georgia K Dwyer
- Centre for Regional and Rural Futures, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia
| | - Thomas S Mock
- Nutrition and Seafood Laboratory, School of Life and Environmental Sciences, Deakin University, Geelong, Victoria 3220, Australia
| | - Stephanie Payne
- School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - Michael Smith
- Centre for Regional and Rural Futures, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia
| | - Michaela Storen
- School of Life and Environmental Sciences, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia
| | - Lawrence Webb
- School of Life and Environmental Sciences, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia
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Duborská E, Vojtková H, Matulová M, Šeda M, Matúš P. Microbial involvement in iodine cycle: mechanisms and potential applications. Front Bioeng Biotechnol 2023; 11:1279270. [PMID: 38026895 PMCID: PMC10643221 DOI: 10.3389/fbioe.2023.1279270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
Stable iodine isotopes are essential for humans as they are necessary for producing thyroid gland hormones. However, there are hazardous radioactive iodine isotopes that are emitted into the environment through radioactive waste generated by nuclear power plants, nuclear weapon tests, and medical practice. Due to the biophilic character of iodine radionuclides and their enormous biomagnification potential, their elimination from contaminated environments is essential to prevent the spread of radioactive pollution in ecosystems. Since microorganisms play a vital role in controlling iodine cycling and fate in the environment, they also can be efficiently utilized in solving the issue of contamination spread. Thus, this paper summarizes all known on microbial processes that are involved in iodine transformation to highlight their prospects in remediation of the sites contaminated with radioactive iodine isotopes.
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Affiliation(s)
- Eva Duborská
- Faculty of Natural Sciences, Institute of Laboratory Research on Geomaterials, Comenius University in Bratislava, Bratislava, Slovakia
| | - Hana Vojtková
- Department of Environmental Engineering, Faculty of Mining and Geology, VŠB–Technical University of Ostrava, Ostrava, Czechia
| | - Michaela Matulová
- Faculty of Natural Sciences, Institute of Laboratory Research on Geomaterials, Comenius University in Bratislava, Bratislava, Slovakia
- Radioactive Waste Repository Authority (SÚRAO), Praha, Czechia
| | - Martin Šeda
- Department of Applied Chemistry, Faculty of Agriculture and Technology, University of South Bohemia, České Budějovice, Czechia
| | - Peter Matúš
- Faculty of Natural Sciences, Institute of Laboratory Research on Geomaterials, Comenius University in Bratislava, Bratislava, Slovakia
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3
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Mijovilovich A, Cloetens P, Lanzirotti A, Newville M, Wellenreuther G, Kumari P, Katsaros C, Carrano CJ, Küpper H, Küpper FC. Synchrotron X-rays reveal the modes of Fe binding and trace metal storage in the brown algae Laminaria digitata and Ectocarpus siliculosus. Metallomics 2023; 15:mfad058. [PMID: 37740572 PMCID: PMC10588612 DOI: 10.1093/mtomcs/mfad058] [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: 03/01/2023] [Accepted: 09/21/2023] [Indexed: 09/24/2023]
Abstract
Iron is accumulated symplastically in kelp in a non-ferritin core that seems to be a general feature of brown algae. Microprobe studies show that Fe binding depends on tissue type. The sea is generally an iron-poor environment and brown algae were recognized in recent years for having a unique, ferritin-free iron storage system. Kelp (Laminaria digitata) and the filamentous brown alga Ectocarpus siliculosus were investigated using X-ray microprobe imaging and nanoprobe X-ray fluorescence tomography to explore the localization of iron, arsenic, strontium, and zinc, and micro-X-ray absorption near-edge structure (μXANES) to study Fe binding. Fe distribution in frozen hydrated environmental samples of both algae shows higher accumulation in the cortex with symplastic subcellular localization. This should be seen in the context of recent ultrastructural insight by cryofixation-freeze substitution that found a new type of cisternae that may have a storage function but differs from the apoplastic Fe accumulation found by conventional chemical fixation. Zn distribution co-localizes with Fe in E. siliculosus, whereas it is chiefly located in the L. digitata medulla, which is similar to As and Sr. Both As and Sr are mostly found at the cell wall of both algae. XANES spectra indicate that Fe in L. digitata is stored in a mineral non-ferritin core, due to the lack of ferritin-encoding genes. We show that the L. digitata cortex contains mostly a ferritin-like mineral, while the meristoderm may include an additional component.
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Affiliation(s)
- Ana Mijovilovich
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Laboratory of Plant Biophysics and Biochemistry, Branišovska 1160/31, 370 05 Česke Budějovice, Czech Republic
| | - Peter Cloetens
- ESRF—The European Synchrotron Radiation Facility, Beamline ID16A, 71, avenue des Martyrs CS 40220 38043 Grenoble Cedex 9, France
| | - Antonio Lanzirotti
- Argonne National Laboratory, The University of Chicago, Building 434A, 9700 South Cass Avenue, Lemont, IL 60439, USA
| | - Matt Newville
- Argonne National Laboratory, The University of Chicago, Building 434A, 9700 South Cass Avenue, Lemont, IL 60439, USA
| | | | - Puja Kumari
- School of Biological Sciences, University of Aberdeen, Cruickshank Building, St Machar Drive, Aberdeen AB24 3UU, UK
| | - Christos Katsaros
- Department of Biology, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 157 84, Hellas, Greece
| | - Carl J Carrano
- Department of Chemistry and Biochemistry, San Diego State University, CA 92182-1030,USA
| | - Hendrik Küpper
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Laboratory of Plant Biophysics and Biochemistry, Branišovska 1160/31, 370 05 Česke Budějovice, Czech Republic
- Department of Experimental Plant Biology, University of South Bohemia, Branišovská 31/1160, 370 05 České Budějovice, Czech Republic
| | - Frithjof C Küpper
- School of Biological Sciences, University of Aberdeen, Cruickshank Building, St Machar Drive, Aberdeen AB24 3UU, UK
- Department of Chemistry and Biochemistry, San Diego State University, CA 92182-1030,USA
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, UK
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Wang X, Shan T, Pang S. Alleviative Effect of Iodine Pretreatment on the Stress of Saccharina japonica (Phaeophyceae, Laminariales) Caused by Cadmium and Its Molecular Basis Revealed by Comparative Transcriptomic Analysis. Int J Mol Sci 2023; 24:14825. [PMID: 37834273 PMCID: PMC10573767 DOI: 10.3390/ijms241914825] [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: 08/31/2023] [Revised: 09/20/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023] Open
Abstract
Iodide is accumulated by the brown alga Saccharina japonica at a high concentration and has been proven to be an inorganic antioxidant that plays an important role in oxidative metabolism. Vanadium-dependent bromoperoxidases (vBPOs) and iodoperoxidases (vIPOs), which catalyze the oxidation of iodide, are essential for iodine accumulation and metabolism. Heavy metal pollutant cadmium (Cd) from anthropogenic activities can cause damage to algae mainly by producing oxidative stress. Here, the effects of iodine pretreatment on the stress of S. japonica caused by cadmium were analyzed. The growth experiment showed that iodine pretreatment could reduce the damage of low concentration cadmium on S. japonica young thalli. At the transcriptomic level, gene ontology (GO) enrichment analysis confirmed that cadmium stress could cause a peroxidation reaction in S. japonica. However, the most significant GO term was "photosystem I" in the series with iodine pretreatment. Weighted gene co-expression network analysis (WGCNA) indicated that iodine pretreatment alleviated cadmium stress responses of S. japonica by affecting the photosynthesis process. Analysis of the differentially expressed genes (DEGs) showed that five enzymes from the vBPO family and 13 enzymes from the vIPO family might play crucial roles in this process.
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Affiliation(s)
- Xuemei Wang
- Chinese Academy of Sciences and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
| | - Tifeng Shan
- Chinese Academy of Sciences and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Shaojun Pang
- Chinese Academy of Sciences and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
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5
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Pozzer AC, Gómez PA, Weiss J. Volatile organic compounds in aquatic ecosystems - Detection, origin, significance and applications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156155. [PMID: 35609693 DOI: 10.1016/j.scitotenv.2022.156155] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 05/06/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Volatile organic compounds (VOCs) include a broad range of compounds. Their production influences a large number of processes, having direct and secondary effects on different fields, such as climate change, economy and ecology. Although our planet is primarily covered with water (~70% of the globe surface), the information on aquatic VOCs, compared to the data available for the terrestrial environments, is still limited. Regardless of the difficulty in collecting and analysing data, because of their extreme complexity, diversification and important spatial-temporal emission variation, it was demonstrated that aquatic organisms are able to produce a variety of bioactive compounds. This production happens in response to abiotic and biotic stresses, evidencing the fundamental role of these metabolites, both in terms of composition and amount, in providing important ecological information and possible non-invasive tools to monitor different biological systems. The study of these compounds is an important and productive task with possible and interesting impacts in future practical applications in different fields. This review aims to summarize the knowledge on the aquatic VOCs, the recent advances in understanding their diverse roles and ecological impacts, the generally used methodology for their sampling and analysis, and their enormous potential as non-invasive, non-destructive and financeable affordable real-time biomonitoring tool, both in natural habitats and in controlled industrial situations. Finally, the possible future technical applications, highlighting their economic and social potential, such as the possibility to use VOCs as valuable alternative source of chemicals and as biocontrol and bioregulation agents, are emphasized.
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Affiliation(s)
- Anna Caterina Pozzer
- Institute of Plant Biotechnology, Universidad Politécnica de Cartagena, Campus Muralla del Mar. 30202, Cartagena, Murcia, Spain
| | - Perla A Gómez
- Institute of Plant Biotechnology, Universidad Politécnica de Cartagena, Campus Muralla del Mar. 30202, Cartagena, Murcia, Spain
| | - Julia Weiss
- Molecular Genetics, Institute of Plant Biotechnology, Universidad Politécnica de Cartagena, Campus Muralla del Mar. 30202, Cartagena, Murcia, Spain.
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6
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Cheng A, Lim WY, Lim PE, Yang Amri A, Poong SW, Song SL, Ilham Z. Marine Autotroph-Herbivore Synergies: Unravelling the Roles of Macroalgae in Marine Ecosystem Dynamics. BIOLOGY 2022; 11:biology11081209. [PMID: 36009834 PMCID: PMC9405220 DOI: 10.3390/biology11081209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 11/22/2022]
Abstract
Simple Summary Invasive species are a leading hazard to marine ecosystems worldwide, coupled with climate change. Tackling the emerging biodiversity threat to maintain the ecological balance of the largest biome in the world has now become a pivotal part of the Sustainable Development Goals (SDGs). Marine herbivores are generally regarded as biological agents that restrict invasive species, and their efficiency depends on their dietary habits, especially the autotrophs they eat. Many researchers have found contradicting findings on the effects of nutritional attributes and novelty of autotrophs on herbivore eating behaviour. In light of the scattered literature on the mechanistic basis of autotroph-herbivore interactions, we provide a comprehensive review to fill knowledge gaps about synergies based on macroalgae, an important group of photosynthetic organisms in the marine biome that interact strongly with generalist herbivores. We also analyse macroalgal defence measures against herbivores, underlining unique features and potential roles in maintaining marine ecosystems. The nutritional qualities, shape, and novelty of autotrophs can alter herbivore feeding behaviour. Future research should explore aspects that can alter marine autotroph-herbivore interactions to resolve inconsistent results of specific features and the uniqueness of the organisms involved. Abstract Species invasion is a leading threat to marine ecosystems worldwide, being deemed as one of the ultimate jeopardies for biodiversity along with climate change. Tackling the emerging biodiversity threat to maintain the ecological balance of the largest biome in the world has now become a pivotal part of the Sustainable Development Goals (SDGs). Marine herbivores are often considered as biological agents that control the spread of invasive species, and their effectiveness depends largely on factors that influence their feeding preferences, including the specific attributes of their food–the autotrophs. While the marine autotroph-herbivore interactions have been substantially discussed globally, many studies have reported contradictory findings on the effects of nutritional attributes and novelty of autotrophs on herbivore feeding behaviour. In view of the scattered literature on the mechanistic basis of autotroph-herbivore interactions, we generate a comprehensive review to furnish insights into critical knowledge gaps about the synergies based largely on the characteristics of macroalgae; an important group of photosynthetic organisms in the marine biome that interact strongly with generalist herbivores. We also discuss the key defence strategies of these macroalgae against the herbivores, highlighting their unique attributes and plausible roles in keeping the marine ecosystems intact. Overall, the feeding behaviour of herbivores can be affected by the nutritional attributes, morphology, and novelty of the autotrophs. We recommend that future research should carefully consider different factors that can potentially affect the dynamics of the marine autotroph-herbivore interactions to resolve the inconsistent results of specific attributes and novelty of the organisms involved.
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Affiliation(s)
- Acga Cheng
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Wai Yin Lim
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Institute of Ocean and Earth Sciences, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Phaik-Eem Lim
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Institute of Ocean and Earth Sciences, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Affendi Yang Amri
- Institute of Ocean and Earth Sciences, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Sze-Wan Poong
- Institute of Ocean and Earth Sciences, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Sze-Looi Song
- Institute of Ocean and Earth Sciences, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Institute for Advanced Studies, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Correspondence: (S.-L.S.); (Z.I.); Tel.: +60-37967-4014 (Z.I.)
| | - Zul Ilham
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Department of Biological and Environmental Engineering, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY 14850, USA
- Correspondence: (S.-L.S.); (Z.I.); Tel.: +60-37967-4014 (Z.I.)
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7
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Saha M, Fink P. Algal volatiles - the overlooked chemical language of aquatic primary producers. Biol Rev Camb Philos Soc 2022; 97:2162-2173. [PMID: 35912802 DOI: 10.1111/brv.12887] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 11/28/2022]
Abstract
Volatiles are important 'infochemicals' that play a crucial role in structuring life on our planet, fulfilling diverse functions in natural and artificial systems. Algae contribute significant quantities to the global budget of volatiles, but the ecological roles of aquatic volatiles are not well understood. In this review, we discuss the current knowledge of volatile compounds from freshwater and marine microalgae and marine macroalgae, with a focus on their ecological roles. We highlight the multiple reported functions of biogenic volatiles, ranging from intraspecific communication for reproduction, intra-bloom signalling and antioxidant functions, to various interspecific signal exchanges that may allow herbivores to locate them and function in defence against competitors and predators. Beyond reviewing our current understanding, we specifically highlight major knowledge gaps and emerging questions for algal volatile research. These novel perspectives have the potential to improve our understanding of aquatic ecosystems and thus need to be addressed in future research. Filling these gaps and addressing these questions will facilitate humanity's efforts to exploit aquatic volatiles in various applications.
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Affiliation(s)
- Mahasweta Saha
- Marine Ecology and Biodiversity, Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH, UK
| | - Patrick Fink
- Department River Ecology, Helmholtz Centre of Environmental Research - UFZ, Brückstrasse 3a, 39114, Magdeburg, Germany.,Department Aquatic Ecosystem Analysis and Management, Helmholtz Centre of Environmental Research - UFZ, Brückstrasse 3a, 39114, Magdeburg, Germany
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8
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Duborská E, Balíková K, Matulová M, Zvěřina O, Farkas B, Littera P, Urík M. Production of Methyl-Iodide in the Environment. Front Microbiol 2021; 12:804081. [PMID: 35003036 PMCID: PMC8733467 DOI: 10.3389/fmicb.2021.804081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/06/2021] [Indexed: 11/13/2022] Open
Abstract
Iodine is an essential micronutrient for most of the living beings, including humans. Besides its indispensable role in animals, it also plays an important role in the environment. It undergoes several chemical and biological transformations resulting in the production of volatile methylated iodides, which play a key role in the iodine's global geochemical cycle. Since it can also mitigate the process of climate change, it is reasonable to study its biogeochemistry. Therefore, the aim of this review is to provide information on its origin, global fluxes and mechanisms of production in the environment.
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Affiliation(s)
- Eva Duborská
- Faculty of Natural Sciences, Institute of Laboratory Research on Geomaterials, Comenius University in Bratislava, Bratislava, Slovakia
| | - Katarína Balíková
- Faculty of Natural Sciences, Institute of Laboratory Research on Geomaterials, Comenius University in Bratislava, Bratislava, Slovakia
| | - Michaela Matulová
- Faculty of Natural Sciences, Institute of Laboratory Research on Geomaterials, Comenius University in Bratislava, Bratislava, Slovakia
| | - Ondřej Zvěřina
- Department of Public Health, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Bence Farkas
- Faculty of Natural Sciences, Institute of Laboratory Research on Geomaterials, Comenius University in Bratislava, Bratislava, Slovakia
| | - Pavol Littera
- Faculty of Natural Sciences, Institute of Laboratory Research on Geomaterials, Comenius University in Bratislava, Bratislava, Slovakia
| | - Martin Urík
- Faculty of Natural Sciences, Institute of Laboratory Research on Geomaterials, Comenius University in Bratislava, Bratislava, Slovakia
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9
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Hua LC, Tsia SR, Ngo DNG, Huang C. Bromide-intrusion into Chlorella sp. and Microcystis aeruginosa growing environments: Its impacts on algal growth and the formation potential of algal-derived DBPs upon chlorination. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 795:148772. [PMID: 34247079 DOI: 10.1016/j.scitotenv.2021.148772] [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: 04/23/2021] [Revised: 06/26/2021] [Accepted: 06/27/2021] [Indexed: 06/13/2023]
Abstract
Due to the negative impact of climate change and anthropogenic activities, bromide intrusion into algae-impacted freshwater becomes a new challenge for safe drinking water supply worldwide, as bromide and algal organic matter are important disinfection byproduct (DBP) precursors. However, the influences of this phenomenon on algal precursor dynamic and their derived DBPs have to date received little attention. This study examined the effects of bromide intrusion on algal intra- (IOM) and extra-cellular (EOM) precursors during the growth of two freshwater algae Chlorella sp. and Microcystis aeruginosa. Both algae were well-adapted to Br-intrusion, and no significant effect on their growth and their IOM and EOM precursor characteristics was statistically found (p > 0.05). Notwithstanding, this phenomenon apparently added bromide ions into the algal-EOM solution, which resulted in a linear uptake of bromide by IOM. Under Br-intrusion from 0-4 mg/L (Br0-Br4), 15-60% (on average) of the initial bromide additions remained in the algal EOM. By contrast, only an average of ~1.5-2.4% of the additional bromide was taken up by the IOM, resulting in an elevation of brominated DBPs (Br-DBPs) upon chlorination, especially for those samples collected in the late exponential and declined growth phases. When Br0 shifted to Br4, the %Br-DBP yields from both IOM and EOM increased by more than 75%, with a corresponding increasing the total DBP yield of ~30%. The toxic potencies of all chlorinated Br-containing IOM/EOM were thus magnified, by over one order magnitude greater than the non-Br IOM/EOM at Br0. These results are highly significant for understanding the potential risks of Br-intrusion and algal blooming in raw water quality prior to chlorination.
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Affiliation(s)
- Lap-Cuong Hua
- Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Shian Rong Tsia
- Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Dinh Ngoc Giao Ngo
- Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Chihpin Huang
- Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan.
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10
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Que L. Alison Butler: papers in celebration of her 2018 ACS Alfred Bader Award in Bioorganic or Bioinorganic Chemistry. J Biol Inorg Chem 2021; 26:375-377. [PMID: 30288609 DOI: 10.1007/s00775-018-1618-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lawrence Que
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, MN, 55455-0431, USA.
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11
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Blanchard P, Babichuk N, Sarkar A. Evaluating the use of synchrotron X-ray spectroscopy in investigating brominated flame retardants in indoor dust. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:42168-42174. [PMID: 32860190 DOI: 10.1007/s11356-020-10623-4] [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: 03/27/2020] [Accepted: 08/24/2020] [Indexed: 06/11/2023]
Abstract
Brominated flame retardants (BFRs) are commonly used in consumer products and they shed off these products and eventually build up in household dust. Polybrominated diphenyl ethers (PBDEs), in particular, are known endocrine-disrupting chemicals affecting various hormone syntheses. Portable X-ray fluorescence spectroscopy (XRF) is the most common non-destructive method in identifying BFRs in environmental samples. However, the method is insensitive to bromine speciation. Synchrotron-based XRF has been shown to have very low detection limits (< 1 μg/g) that is suitable for detecting BFRs and can be combined with X-ray absorption near-edge spectroscopy (XANES) to identify the bromine species present in the household dust. Twenty indoor dust samples were collected from rural homes in Newfoundland (Canada) to assess the use of synchrotron-based techniques to identify BFRs. Synchrotron-based XRF analysis identified bromine in all the samples, with concentrations ranging from 2-19 μg/g. XANES analysis identified organic-based bromine species in several samples that are likely BFRs based on the spectral line shape. The accuracy of using XANES to identify BFRs is highly dependent on the source and size of the dust samples. Therefore, for future research, it is important to take into account the sources of dust sample and to focus on fine dust particles.
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Affiliation(s)
| | - Nicole Babichuk
- Division of Community Health Humanities, Faculty of Medicine, Memorial University, St. John's, NL, A1B 3V6, Canada
| | - Atanu Sarkar
- 4M110, Health Sciences Centre, Division of Community Health Humanities, Faculty of Medicine, Memorial University, St. John's, NL, A1B 3V6, Canada.
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Fisher CL, Lane PD, Russell M, Maddalena R, Lane TW. Low Molecular Weight Volatile Organic Compounds Indicate Grazing by the Marine Rotifer Brachionus plicatilis on the Microalgae Microchloropsis salina. Metabolites 2020; 10:E361. [PMID: 32899747 PMCID: PMC7570158 DOI: 10.3390/metabo10090361] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/30/2020] [Accepted: 09/02/2020] [Indexed: 01/05/2023] Open
Abstract
Microalgae produce specific chemicals indicative of stress and/or death. The aim of this study was to perform non-destructive monitoring of algal culture systems, in the presence and absence of grazers, to identify potential biomarkers of incipient pond crashes. Here, we report ten volatile organic compounds (VOCs) that are robustly generated by the marine alga, Microchloropsis salina, in the presence and/or absence of the marine grazer, Brachionus plicatilis. We cultured M. salina with and without B. plicatilis and collected in situ volatile headspace samples using thermal desorption tubes over the course of several days. Data from four experiments were aggregated, deconvoluted, and chromatographically aligned to determine VOCs with tentative identifications made via mass spectral library matching. VOCs generated by algae in the presence of actively grazing rotifers were confirmed via pure analytical standards to be pentane, 3-pentanone, 3-methylhexane, and 2-methylfuran. Six other VOCs were less specifically associated with grazing but were still commonly observed between the four replicate experiments. Through this work, we identified four biomarkers of rotifer grazing that indicate algal stress/death. This will aid machine learning algorithms to chemically define and diagnose algal mass production cultures and save algae cultures from imminent crash to make biofuel an alternative energy possibility.
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Affiliation(s)
- Carolyn L. Fisher
- Bioresources and Environmental Security Department, Sandia National Laboratories, P.O. Box 969, Livermore, CA 94551, USA;
| | - Pamela D. Lane
- Systems Biology Department, Sandia National Laboratories, P.O. Box 969, Livermore, CA 94551, USA;
| | - Marion Russell
- Energy Analysis and Environmental Impacts Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA; (M.R.); (R.M.)
| | - Randy Maddalena
- Energy Analysis and Environmental Impacts Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA; (M.R.); (R.M.)
| | - Todd W. Lane
- Bioresources and Environmental Security Department, Sandia National Laboratories, P.O. Box 969, Livermore, CA 94551, USA;
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Abstract
The urgent need to replace fossil fuels has seen macroalgae advancing as a potential feedstock for anaerobic digestion. The natural methane productivity (dry weight per hectare) of seaweeds is greater than in many terrestrial plant systems. As part of their defence systems, seaweeds, unlike terrestrial plants, produce a range of halogenated secondary metabolites, especially chlorinated and brominated compounds. Some orders of brown seaweeds also accumulate iodine, up to 1.2% of their dry weight. Fluorine remains rather unusual within the chemical structure. Halogenated hydrocarbons have moderate to high toxicities. In addition, halogenated organic compounds constitute a large group of environmental chemicals due to their extensive use in industry and agriculture. In recent years, concerns over the environmental fate and release of these halogenated organic compounds have resulted in research into their biodegradation and the evidence emerging shows that many of these compounds are more easily degraded under strictly anaerobic conditions compared to aerobic biodegradation. Biosorption via seaweed has become an alternative to the existing technologies in removing these pollutants. Halogenated compounds are known inhibitors of methane production from ruminants and humanmade anaerobic digesters. The focus of this paper is reviewing the available information on the effects of halogenated organic compounds on anaerobic digestion.
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Salomone VN, Riera M. Proximal Composition of Undaria pinnatifida from San Jorge Gulf (Patagonia, Argentina). Biol Trace Elem Res 2020; 196:252-261. [PMID: 31713114 DOI: 10.1007/s12011-019-01905-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 09/12/2019] [Indexed: 10/25/2022]
Abstract
Undaria pinnatifida is a brown macroalga considered a high quality natural food because of its numerous health benefits. The aim of this paper is to provide seasonal information on the chemical content of blades and sporophylls of U. pinnatifida from San Jorge Gulf (SJG, Chubut, Argentina) in order to evaluate their different uses. Moreover, samples of algae deposited on the beach are also studied. A multi-elemental analysis is made by Total Reflection X-ray Fluorescence (TXRF). Sixteen elements are quantified: As, Br, Ca, Cr, Cu, Fe, K, Mn, Ni, P, Pb, Rb, S, Sr, V and Zn. The results reveal that the mineral content in blades of U. pinnatifida is high, especially in autumn. Some elements show an important seasonal variation, such as: K (14-54.8 g kg-1), P (2.7-7.0 g kg-1), Sr (361-569 mg kg-1), Fe (62-140 mg kg-1), Zn (8-103 mg kg-1), Br (45-94 mg kg-1) and Rb (4-24 mg kg-1). In the case of potentially toxic elements, a variation was seen mainly in arsenic, with higher values during summer and autumn. The concentrations of nickel and lead are below the limit of detection (0.9 mg kg-1). Sporophylls contain high concentrations of macro and micronutrients, with maximum values in spring. Besides, reproductive structures showed higher total arsenic values than blades. This could indicate that arsenic is mainly accumulated in sporophylls. Algae deposited on the beach are considered a waste; but they show a similar elemental composition to the samples extracted from the sea. We concluded that all samples analyzed could be used as food or fertilizers by local populations.
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Affiliation(s)
- Vanesa N Salomone
- Instituto de Investigación e Ingeniería Ambiental (IIIA), CONICET-UNSAM, Av. 25 de Mayo y Francia 1650, San Martín, Buenos Aires, Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB, CABA, Argentina.
| | - Marina Riera
- Instituto de Investigación e Ingeniería Ambiental (IIIA), CONICET-UNSAM, Av. 25 de Mayo y Francia 1650, San Martín, Buenos Aires, Argentina
- Dpto. Biología y Ambiente, Facultad de Ciencias Naturales (FCN), Universidad Nacional de la Patagonia San Juan Bosco (UNPSJB), Ciudad Universitaria Km 4, 9005, Comodoro Rivadavia, Chubut, Argentina
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15
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Skitchenko RK, Usoltsev D, Uspenskaya M, Kajava AV, Guskov A. Census of halide-binding sites in protein structures. Bioinformatics 2020; 36:3064-3071. [PMID: 32022861 PMCID: PMC7214031 DOI: 10.1093/bioinformatics/btaa079] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/24/2020] [Accepted: 01/29/2020] [Indexed: 12/02/2022] Open
Abstract
Motivation Halides are negatively charged ions of halogens, forming fluorides (F−), chlorides (Cl−), bromides (Br−) and iodides (I−). These anions are quite reactive and interact both specifically and non-specifically with proteins. Despite their ubiquitous presence and important roles in protein function, little is known about the preferences of halides binding to proteins. To address this problem, we performed the analysis of halide–protein interactions, based on the entries in the Protein Data Bank. Results We have compiled a pipeline for the quick analysis of halide-binding sites in proteins using the available software. Our analysis revealed that all of halides are strongly attracted by the guanidinium moiety of arginine side chains, however, there are also certain preferences among halides for other partners. Furthermore, there is a certain preference for coordination numbers in the binding sites, with a correlation between coordination numbers and amino acid composition. This pipeline can be used as a tool for the analysis of specific halide–protein interactions and assist phasing experiments relying on halides as anomalous scatters. Availability and implementation All data described in this article can be reproduced via complied pipeline published at https://github.com/rostkick/Halide_sites/blob/master/README.md. Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
| | - Dmitrii Usoltsev
- Institute BioEngineering, ITMO University, Saint-Petersburg 197101, Russia
| | - Mayya Uspenskaya
- Institute BioEngineering, ITMO University, Saint-Petersburg 197101, Russia
| | - Andrey V Kajava
- Institute BioEngineering, ITMO University, Saint-Petersburg 197101, Russia.,Centre de Recherche en Biologie cellulaire de Montpellier (CRBM), UMR 5237 CNRS, Universite Montpellier, Montpellier 34293, France
| | - Albert Guskov
- Groningen Biomolecular Sciences & Biotechnology Institute, University of Groningen, Groningen 9747 AG, the Netherlands
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Zhang Y, Wang X, Shan T, Pang S, Xu N. Transcriptome profiling of the meristem tissue of Saccharina japonica (Phaeophyceae, Laminariales) under severe stress of copper. Mar Genomics 2019; 47:100671. [PMID: 30910511 DOI: 10.1016/j.margen.2019.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 03/18/2019] [Accepted: 03/18/2019] [Indexed: 02/08/2023]
Abstract
Copper (Cu) is an essential metal involved in many physiological processes of living organisms. However, beyond a certain threshold, Cu can become highly toxic. For instance, in the summer sporeling production of the economic kelp Saccharina japonica, the excess Cu accidently released from the low-quality alloys of the refrigerating machine was deadly to the seedlings and led to the failure of hatchery operations. However, the molecular basis underlying high toxicity of Cu remains unclear. In this study, juvenile sporophytes were cultured in seawater containing different concentrations of Cu2+ (10, 100, and 200 μg L-1). Bleaching was observed in the meristem of individuals in the 100 and 200 μg L-1 treatment groups on the third day, indicating that Cu has caused severe harm at these concentrations. RNA-Seq was used to profile transcriptomic changes under different Cu2+ concentrations. Compared with the control, the number of differentially expressed genes (DEGs) was 11,350 (4944 up- and 6406 down-regulated) in the 200 μg L-1 treatment group and 2868 (1075 up- and 1793 down-regulated) in the 100 μg L-1 treatment group, whereas much fewer DEGs were detected in the 10 μg L-1 treatment group. Genes coding for glutathione-S-transferase and vanadium-dependent bromoperoxidase and iodoperoxidase were found to be remarkably regulated, especially in the 200 μg L-1 treatment group. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses showed that only down-regulated DEGs were enriched. There were 45 enriched GO terms and four enriched KEGG pathways common to the 100 and 200 μg L-1 treatment groups, which were associated with diverse essential biological processes such as photosynthesis, protein synthesis, redox activity, and metabolism and biosynthesis of functional biomolecules, among others. Suppression of these biological processes at the transcriptional level likely contributes to the observed high toxicity of Cu2+ in S. japonica.
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Affiliation(s)
- Yurong Zhang
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China; Marine Fishery Institute of Zhejiang Province, Key Lab of Mariculture and Enhancement of Zhejiang province, 316100 Zhoushan, China
| | - Xuemei Wang
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, 7 Nanhai Road, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tifeng Shan
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, 7 Nanhai Road, Qingdao 266071, China.
| | - Shaojun Pang
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, 7 Nanhai Road, Qingdao 266071, China.
| | - Nianjun Xu
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China
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Küpper FC, Carrano CJ. Key aspects of the iodine metabolism in brown algae: a brief critical review. Metallomics 2019; 11:756-764. [PMID: 30834917 DOI: 10.1039/c8mt00327k] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Brown algae include the strongest accumulators of iodine known among living systems. This paper reviews the current state of bioinorganic research in the field, focusing on the models Laminaria digitata, Macrocystis pyrifera and Ectocarpus siliculosus, and covering uptake and efflux, localization and biological significance of storage, as well as marine and atmospheric chemistry of iodine.
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Affiliation(s)
- Frithjof C Küpper
- School of Biological Sciences, University of Aberdeen, Cruickshank Building, St. Machar Drive, Aberdeen AB24 3UU, Scotland, UK
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