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[PMID]:29295998
[Au] Autor:Woodson CB; Schramski JR; Joye SB
[Ad] Endereço:School of Environmental, Civil, and Environmental Engineering, University of Georgia, Athens, GA, 30602, USA. bwoodson@uga.edu.
[Ti] Título:A unifying theory for top-heavy ecosystem structure in the ocean.
[So] Source:Nat Commun;9(1):23, 2018 01 02.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Size generally dictates metabolic requirements, trophic level, and consequently, ecosystem structure, where inefficient energy transfer leads to bottom-heavy ecosystem structure and biomass decreases as individual size (or trophic level) increases. However, many animals deviate from simple size-based predictions by either adopting generalist predatory behavior, or feeding lower in the trophic web than predicted from their size. Here we show that generalist predatory behavior and lower trophic feeding at large body size increase overall biomass and shift ecosystems from a bottom-heavy pyramid to a top-heavy hourglass shape, with the most biomass accounted for by the largest animals. These effects could be especially dramatic in the ocean, where primary producers are the smallest components of the ecosystem. This approach makes it possible to explore and predict, in the past and in the future, the structure of ocean ecosystems without biomass extraction and other impacts.
[Mh] Termos MeSH primário: Ecossistema
Peixes/fisiologia
Cadeia Alimentar
Modelos Biológicos
[Mh] Termos MeSH secundário: Animais
Antozoários/classificação
Antozoários/fisiologia
Biomassa
Tamanho Corporal
Comportamento Alimentar/fisiologia
Pesqueiros/estatística & dados numéricos
Pesqueiros/tendências
Peixes/classificação
Oceanos e Mares
Plâncton/classificação
Plâncton/fisiologia
Dinâmica Populacional
Comportamento Predatório/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180104
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02450-y


  2 / 4606 MEDLINE  
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[PMID]:29351566
[Au] Autor:Samoilys M; Roche R; Koldewey H; Turner J
[Ad] Endereço:CORDIO East Africa, Mombasa, Kenya.
[Ti] Título:Patterns in reef fish assemblages: Insights from the Chagos Archipelago.
[So] Source:PLoS One;13(1):e0191448, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Understanding the drivers of variability in the composition of fish assemblages across the Indo-Pacific region is crucial to support coral reef ecosystem resilience. Whilst numerous relationships and feedback mechanisms between the functional roles of coral reef fishes and reef benthic composition have been investigated, certain key groups, such as the herbivores, are widely suggested to maintain reefs in a coral-dominated state. Examining links between fishes and reef benthos is complicated by the interactions between natural processes, disturbance events and anthropogenic impacts, particularly fishing pressure. This study examined fish assemblages and associated benthic variables across five atolls within the Chagos Archipelago, where fishing pressure is largely absent, to better understand these relationships. We found high variability in fish assemblages among atolls and sites across the archipelago, especially for key groups such as a suite of grazer-detritivore surgeonfish, and the parrotfishes which varied in density over 40-fold between sites. Differences in fish assemblages were significantly associated with variable levels of both live and recently dead coral cover and rugosity. We suggest these results reflect differing coral recovery trajectories following coral bleaching events and a strong influence of 'bottom-up' control mechanisms on fish assemblages. Species level analyses revealed that Scarus niger, Acanthurus nigrofuscus and Chlorurus strongylocephalos were key species driving differences in fish assemblage structure. Clarifying the trophic roles of herbivorous and detritivorous reef fishes will require species-level studies, which also examine feeding behaviour, to fully understand their contribution in maintaining reef resilience to climate change and fishing impacts.
[Mh] Termos MeSH primário: Recifes de Corais
Peixes
[Mh] Termos MeSH secundário: Animais
Antozoários
Biodiversidade
Biomassa
Mudança Climática
Conservação dos Recursos Naturais
Comportamento Alimentar
Pesqueiros
Peixes/classificação
Peixes/fisiologia
Herbivoria
Oceano Índico
Ilhas do Oceano Índico
Densidade Demográfica
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180120
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191448


  3 / 4606 MEDLINE  
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[PMID]:28744579
[Au] Autor:Uda K; Abe K; Dehara Y; Mizobata K; Edashige Y; Nishimura R; Radkov AD; Moe LA
[Ad] Endereço:Laboratory of Biochemistry, Faculty of Science and Technology, Kochi University, Kochi, 780-8520, Japan. k-uda@kochi-u.ac.jp.
[Ti] Título:Triple serine loop region regulates the aspartate racemase activity of the serine/aspartate racemase family.
[So] Source:Amino Acids;49(10):1743-1754, 2017 10.
[Is] ISSN:1438-2199
[Cp] País de publicação:Austria
[La] Idioma:eng
[Ab] Resumo:Recently, we cloned and characterized eleven serine and aspartate racemases (SerR and AspR, respectively) from animals. These SerRs and AspRs are not separated by their racemase functions and form a serine/aspartate racemase family cluster based on phylogenetic analysis. Moreover, we have proposed that the AspR-specific triple serine loop region at amino acid positions 150-152 may be responsible for the large AspR activity. In the present study, to test this hypothesis, we prepared and characterized fourteen mutants in this region of animal SerRs and AspRs. The large AspR activity in Acropora and Crassostrea AspR was reduced to <0.04% of wild-type after substitution of the triple serine loop region. Conversely, introducing the triple serine loop region into Acropora, Crassostrea, and Penaeus SerR drastically increased the AspR activity. Those mutants showed similar or higher substrate affinity for aspartate than serine and showed 11-683-fold higher k and 28-351-fold higher k /K values for aspartate than serine racemization. Furthermore, we introduced serine residues in all combinations at position 150-152 in mouse SerR. These mutants revealed that a change in the enzyme function from SerR to AspR can be caused by introduction of Ser151 and Ser152, and addition of the third serine residue at position 150 further enhances the enzyme specificity for aspartate due to a decrease in the serine racemase and serine dehydratase activity. Here, we provide convincing evidence that the AspR gene has evolved from the SerR gene by acquisition of the triple serine loop region.
[Mh] Termos MeSH primário: Isomerases de Aminoácido
Antozoários
Proteínas de Artrópodes
Crassostrea
Mutação de Sentido Incorreto
Penaeidae
Racemases e Epimerases
[Mh] Termos MeSH secundário: Isomerases de Aminoácido/química
Isomerases de Aminoácido/genética
Substituição de Aminoácidos
Animais
Antozoários/enzimologia
Antozoários/genética
Proteínas de Artrópodes/química
Proteínas de Artrópodes/genética
Crassostrea/enzimologia
Crassostrea/genética
Camundongos
Penaeidae/enzimologia
Penaeidae/genética
Estrutura Secundária de Proteína
Racemases e Epimerases/química
Racemases e Epimerases/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Arthropod Proteins); EC 5.1.- (Racemases and Epimerases); EC 5.1.1.- (Amino Acid Isomerases); EC 5.1.1.13 (aspartate racemase); EC 5.1.1.16 (serine racemase)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170727
[St] Status:MEDLINE
[do] DOI:10.1007/s00726-017-2472-8


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[PMID]:28919505
[Au] Autor:Swain TD
[Ad] Endereço:Integrative Research Center, Field Museum of Natural History, Chicago, IL 60605, USA; Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA. Electronic address: tswain@fieldmuseum.org.
[Ti] Título:Revisiting the phylogeny of Zoanthidea (Cnidaria: Anthozoa): Staggered alignment of hypervariable sequences improves species tree inference.
[So] Source:Mol Phylogenet Evol;118:1-12, 2018 Jan.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The recent rapid proliferation of novel taxon identification in the Zoanthidea has been accompanied by a parallel propagation of gene trees as a tool of species discovery, but not a corresponding increase in our understanding of phylogeny. This disparity is caused by the trade-off between the capabilities of automated DNA sequence alignment and data content of genes applied to phylogenetic inference in this group. Conserved genes or segments are easily aligned across the order, but produce poorly resolved trees; hypervariable genes or segments contain the evolutionary signal necessary for resolution and robust support, but sequence alignment is daunting. Staggered alignments are a form of phylogeny-informed sequence alignment composed of a mosaic of local and universal regions that allow phylogenetic inference to be applied to all nucleotides from both hypervariable and conserved gene segments. Comparisons between species tree phylogenies inferred from all data (staggered alignment) and hypervariable-excluded data (standard alignment) demonstrate improved confidence and greater topological agreement with other sources of data for the complete-data tree. This novel phylogeny is the most comprehensive to date (in terms of taxa and data) and can serve as an expandable tool for evolutionary hypothesis testing in the Zoanthidea. Spanish language abstract available in Text S1. Translation by L. O. Swain, DePaul University, Chicago, Illinois, 60604, USA.
[Mh] Termos MeSH primário: Antozoários/classificação
[Mh] Termos MeSH secundário: Animais
Antozoários/genética
Sequência de Bases
Bases de Dados Genéticas
Filogenia
RNA Ribossômico/química
RNA Ribossômico/genética
RNA Ribossômico 16S/química
RNA Ribossômico 16S/genética
Alinhamento de Sequência
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Ribosomal); 0 (RNA, Ribosomal, 16S); 0 (RNA, ribosomal, 12S)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170919
[St] Status:MEDLINE


  5 / 4606 MEDLINE  
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[PMID]:28464391
[Au] Autor:Lawrence SA; Floge SA; Davy JE; Davy SK; Wilson WH
[Ad] Endereço:School of Biological Sciences, Victoria University of Wellington, Wellington, 6140, New Zealand.
[Ti] Título:Exploratory analysis of Symbiodinium transcriptomes reveals potential latent infection by large dsDNA viruses.
[So] Source:Environ Microbiol;19(10):3909-3919, 2017 Oct.
[Is] ISSN:1462-2920
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Coral reefs are in decline worldwide. Much of this decline is attributable to mass coral bleaching events and disease outbreaks, both of which are linked to anthropogenic climate change. Despite increased research effort, much remains unknown about these phenomena, especially the causative agents of many coral diseases. In particular, coral-associated viruses have received little attention, and their potential roles in coral diseases are largely unknown. Previous microscopy studies have produced evidence of viral infections in Symbiodinium, the endosymbiotic algae critical for coral survival, and more recently molecular evidence of Symbiodinium-infecting viruses has emerged from metagenomic studies of corals. Here, we took an exploratory whole-transcriptome approach to virus gene discovery in three different Symbiodinium cultures. An array of virus-like genes was found in each of the transcriptomes, with the majority apparently belonging to the nucleocytoplasmic large DNA viruses. Upregulation of virus-like gene expression following stress experiments indicated that Symbiodinium cells may host latent or persistent viral infections that are induced via stress. This was supported by analysis of host gene expression, which showed changes consistent with viral infection after exposure to stress. If these results can be replicated in Symbiodinium cells in hospite, they could help to explain the breakdown of the coral-Symbiodinium symbiosis, and possibly some of the numerous coral diseases that have yet to be assigned a causative agent.
[Mh] Termos MeSH primário: Vírus de DNA/genética
Dinoflagelados/genética
Dinoflagelados/virologia
Transcriptoma/genética
[Mh] Termos MeSH secundário: Animais
Antozoários/fisiologia
Mudança Climática
Recifes de Corais
Simbiose/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180221
[Lr] Data última revisão:
180221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170503
[St] Status:MEDLINE
[do] DOI:10.1111/1462-2920.13782


  6 / 4606 MEDLINE  
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[PMID]:29338021
[Au] Autor:Grottoli AG; Dalcin Martins P; Wilkins MJ; Johnston MD; Warner ME; Cai WJ; Melman TF; Hoadley KD; Pettay DT; Levas S; Schoepf V
[Ad] Endereço:School of Earth Sciences, The Ohio State University, Columbus, OH, United States of America.
[Ti] Título:Coral physiology and microbiome dynamics under combined warming and ocean acidification.
[So] Source:PLoS One;13(1):e0191156, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Rising seawater temperature and ocean acidification threaten the survival of coral reefs. The relationship between coral physiology and its microbiome may reveal why some corals are more resilient to these global change conditions. Here, we conducted the first experiment to simultaneously investigate changes in the coral microbiome and coral physiology in response to the dual stress of elevated seawater temperature and ocean acidification expected by the end of this century. Two species of corals, Acropora millepora containing the thermally sensitive endosymbiont C21a and Turbinaria reniformis containing the thermally tolerant endosymbiont Symbiodinium trenchi, were exposed to control (26.5°C and pCO2 of 364 µatm) and treatment (29.0°C and pCO2 of 750 µatm) conditions for 24 days, after which we measured the microbial community composition. These microbial findings were interpreted within the context of previously published physiological measurements from the exact same corals in this study (calcification, organic carbon flux, ratio of photosynthesis to respiration, photosystem II maximal efficiency, total lipids, soluble animal protein, soluble animal carbohydrates, soluble algal protein, soluble algal carbohydrate, biomass, endosymbiotic algal density, and chlorophyll a). Overall, dually stressed A. millepora had reduced microbial diversity, experienced large changes in microbial community composition, and experienced dramatic physiological declines in calcification, photosystem II maximal efficiency, and algal carbohydrates. In contrast, the dually stressed coral T. reniformis experienced a stable and more diverse microbiome community with minimal physiological decline, coupled with very high total energy reserves and particulate organic carbon release rates. Thus, the microbiome changed and microbial diversity decreased in the physiologically sensitive coral with the thermally sensitive endosymbiotic algae but not in the physiologically tolerant coral with the thermally tolerant endosymbiont. Our results confirm recent findings that temperature-stress tolerant corals have a more stable microbiome, and demonstrate for the first time that this is also the case under the dual stresses of ocean warming and acidification. We propose that coral with a stable microbiome are also more physiologically resilient and thus more likely to persist in the future, and shape the coral species diversity of future reef ecosystems.
[Mh] Termos MeSH primário: Ácidos/química
Antozoários/fisiologia
Aquecimento Global
Concentração de Íons de Hidrogênio
Microbiota
Oceanos e Mares
[Mh] Termos MeSH secundário: Animais
Água do Mar
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Acids)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180117
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191156


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[PMID]:29235976
[Au] Autor:Sheu SY; Xie PB; Sheu DS; Tang SL; Chen WM
[Ad] Endereço:1​Department of Marine Biotechnology, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd. Nan-Tzu, Kaohsiung City 811, Taiwan, ROC.
[Ti] Título:Litoribrevibacter euphylliae sp. nov., isolated from the torch coral Euphyllia glabrescens.
[So] Source:Int J Syst Evol Microbiol;68(1):432-437, 2018 Jan.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Strain Eup a-2 , isolated from the torch coral Euphyllia glabrescens, was characterized using a polyphasic taxonomy approach. Cells of strain Eup a-2 were Gram-negative, aerobic and motile by three polar flagella and formed translucent colonies. Optimal growth occurred at 25 °C, pH 6-8 and in the presence of 2-4 % NaCl. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain Eup a-2 belonged to the genus Litoribrevibacter and showed the highest levels of sequence similarity with respect to Litoribrevibacter albus Y32 (97.8 %). Strain Eup a-2 contained summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) and C16 : 0 as the predominant fatty acids. The predominant isoprenoid quinone was Q-8. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphophatidylglycerol. Genomic DNA G+C content of strain Eup a-2 was 49.1 mol%. The DNA-DNA hybridization value for strain Eup a-2 with L. albus Y32 was less than 30 %. Differential phenotypic properties, together with the phylogenetic inference, demonstrate that strain Eup a-2 should be classified as a novel species of the genus Litoribrevibacter, for which the name Litoribrevibactereuphylliae sp. nov. is presented. The type strain is Eup a-2 (=BCRC 81004 =LMG 29725 =KCTC 52438 ).
[Mh] Termos MeSH primário: Antozoários/microbiologia
Oceanospirillaceae/classificação
Filogenia
[Mh] Termos MeSH secundário: Animais
Técnicas de Tipagem Bacteriana
Composição de Bases
DNA Bacteriano/genética
Ácidos Graxos/química
Hibridização de Ácido Nucleico
Oceanospirillaceae/genética
Oceanospirillaceae/isolamento & purificação
Fosfolipídeos/química
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
Vitamina K 2/análogos & derivados
Vitamina K 2/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (Phospholipids); 0 (RNA, Ribosomal, 16S); 11032-49-8 (Vitamin K 2); 523-38-6 (vitamin MK 8)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180209
[Lr] Data última revisão:
180209
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171214
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002529


  8 / 4606 MEDLINE  
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[PMID]:28467676
[Au] Autor:Crowder CM; Meyer E; Fan TY; Weis VM
[Ad] Endereço:Department of Integrative Biology, Oregon State University, Corvallis, OR, USA.
[Ti] Título:Impacts of temperature and lunar day on gene expression profiles during a monthly reproductive cycle in the brooding coral Pocillopora damicornis.
[So] Source:Mol Ecol;26(15):3913-3925, 2017 Aug.
[Is] ISSN:1365-294X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Reproductive timing in brooding corals has been correlated to temperature and lunar irradiance, but the mechanisms by which corals transduce these environmental variables into molecular signals are unknown. To gain insight into these processes, global gene expression profiles in the coral Pocillopora damicornis were examined (via RNA-Seq) across lunar phases and between temperature treatments, during a monthly planulation cycle. The interaction of temperature and lunar day together had the largest influence on gene expression. Mean timing of planulation, which occurred at lunar days 7.4 and 12.5 for 28- and 23°C-treated corals, respectively, was associated with an upregulation of transcripts in individual temperature treatments. Expression profiles of planulation-associated genes were compared between temperature treatments, revealing that elevated temperatures disrupted expression profiles associated with planulation. Gene functions inferred from homologous matches to online databases suggest complex neuropeptide signalling, with calcium as a central mediator, acting through tyrosine kinase and G protein-coupled receptor pathways. This work contributes to our understanding of coral reproductive physiology and the impacts of environmental variables on coral reproductive pathways.
[Mh] Termos MeSH primário: Antozoários/genética
Periodicidade
Temperatura Ambiente
Transcriptoma
[Mh] Termos MeSH secundário: Animais
Antozoários/fisiologia
Lua
Reprodução
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180205
[Lr] Data última revisão:
180205
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170504
[St] Status:MEDLINE
[do] DOI:10.1111/mec.14162


  9 / 4606 MEDLINE  
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[PMID]:28453786
[Au] Autor:Porath HT; Schaffer AA; Kaniewska P; Alon S; Eisenberg E; Rosenthal J; Levanon EY; Levy O
[Ad] Endereço:The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel.
[Ti] Título:A-to-I RNA Editing in the Earliest-Diverging Eumetazoan Phyla.
[So] Source:Mol Biol Evol;34(8):1890-1901, 2017 Aug 01.
[Is] ISSN:1537-1719
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The highly conserved ADAR enzymes, found in all multicellular metazoans, catalyze the editing of mRNA transcripts by the deamination of adenosines to inosines. This type of editing has two general outcomes: site specific editing, which frequently leads to recoding, and clustered editing, which is usually found in transcribed genomic repeats. Here, for the first time, we looked for both editing of isolated sites and clustered, non-specific sites in a basal metazoan, the coral Acropora millepora during spawning event, in order to reveal its editing pattern. We found that the coral editome resembles the mammalian one: it contains more than 500,000 sites, virtually all of which are clustered in non-coding regions that are enriched for predicted dsRNA structures. RNA editing levels were increased during spawning and increased further still in newly released gametes. This may suggest that editing plays a role in introducing variability in coral gametes.
[Mh] Termos MeSH primário: Adenosina Desaminase/genética
Antozoários/genética
Edição de RNA/genética
[Mh] Termos MeSH secundário: Adenosina Desaminase/metabolismo
Animais
Antozoários/metabolismo
Sequência de Bases
Evolução Molecular
Genoma
Genômica
Seres Humanos
Mamíferos/genética
Filogenia
RNA
RNA Mensageiro/genética
Proteínas de Ligação a RNA/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Messenger); 0 (RNA, immune); 0 (RNA-Binding Proteins); 63231-63-0 (RNA); EC 3.5.4.4 (Adenosine Deaminase)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180201
[Lr] Data última revisão:
180201
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE
[do] DOI:10.1093/molbev/msx125


  10 / 4606 MEDLINE  
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[PMID]:29021096
[Au] Autor:Zhang R; Zhang R; Yu K; Wang Y; Huang X; Pei J; Wei C; Pan Z; Qin Z; Zhang G
[Ad] Endereço:Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning 530004, China; Coral Reef Research Center of China, Guangxi University, Nanning 530004, China; School of Marine Sciences, Guangxi University, Nanning 530004, China.
[Ti] Título:Occurrence, sources and transport of antibiotics in the surface water of coral reef regions in the South China Sea: Potential risk to coral growth.
[So] Source:Environ Pollut;232:450-457, 2018 Jan.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Laboratory research has indicated that antibiotics had negative effects on coral growth by disturbing natural microbiota; however, no field studies have reported antibiotic contamination levels and their influence on coral growth in natural coral reef regions (CRRs). This study investigated antibiotic occurrence and sources in the surface water from CRRs that have suffered from rapid coral degradation and evaluated their risk to coral growth. These regions are in the South China Sea, including four coastal and two offshore CRRs. The results show that 13 antibiotics were detected in the coastal CRRs with concentrations ranging from 10 -10 ng L , while 5 antibiotics occurred in offshore CRRs (300-950 km from the mainland), with concentrations ranging from 10 to 10 ng L . Their concentrations decreased gradually from the coast to offshore in the transport process. However, Yongxing Island, which is approximately 300 km from the mainland, was an exception with relatively higher concentrations than the surrounding reefs because of the ever-increasing human activity on the island. The presence of anthropogenic contaminants antibiotics in CRRs may be a potential risk to coral growth.
[Mh] Termos MeSH primário: Antozoários/fisiologia
Antibacterianos/análise
Recifes de Corais
Monitoramento Ambiental
Água do Mar/química
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Animais
China
Atividades Humanas
Seres Humanos
Risco
Medição de Risco
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180123
[Lr] Data última revisão:
180123
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171013
[St] Status:MEDLINE



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