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Registros recuperados: 51
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A new deep-sea genus of nannastacidae (Crustacea, cumacea) from the lucky strike hydrothermal vent field (Azores triple junction, mid-atlantic ridge) ArchiMer
Corbera, J; Segonzac, Michel; Cunha, M.
A new cumacean genus and species, Thalycrocuma sarradini gen. et sp. nov., belonging to the family Nannastacidae is described from several sites of the Lucky Strike hydrothermal vent field (Mid-Atlantic Ridge, 37N, 1700 m depth). The new genus differs from others in the family by males lacking exopods on the pereopods 3 and 4 and having an antenna with a five-articulate peduncle and a short flagellum. This is the first cumacean species that could be considered, at the moment, as endemic from hydrothermal vent areas. Data on the accompanying fauna including other cumacean species (Cyclaspis longicaudata, Bathycuma brevirostre, Procampylaspis sp. and Makrokylindrus sp.) and some ecological remarks are included. A key for the currently known genera of the...
Tipo: Text Palavras-chave: Systematics; Morphology; Mid Atlantic Ridge; Hydrothermal vents; Deep sea; Cumacea.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4358.pdf
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A new deep-sea isopod from the Weddell Sea, Antarctica: Coperonus pinguis n. sp. (Crustacea, Isopoda, Munnopsidae) Naturalis
Brandt, Angelika.
A new species of Coperonus, C. pinguis, is described from the Antarctic deep sea. It is the first record of an Antarctic deep-sea species in this genus and the southernmost record of Coperonus.
Tipo: Article / Letter to the editor Palavras-chave: Taxonomy; Biogeography; Antarctica; Weddell Sea; Deep sea; Coperonus.
Ano: 1992 URL: http://www.repository.naturalis.nl/record/503974
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A new deep-sea lobster of the genus Thymopides (Crustacea : Decapoda : Nephropidae) collected near the hydrothermal vent Snake Pit, Mid-Atlantic Ridge ArchiMer
Segonzac, Michel; Macpherson, Enrique.
A second species of the genus Thymopides, T laurentae sp. nov., is described from a specimen trapped at 3505 m depth in the Mid-Atlantic Ridge, near the Snake Pit hydrothermal area. This new species is easily distinguishable from the type species T grobovi, collected off the subantarctic islands Heard and Kerguelen, at depth between 525 and 1220 m, by its smooth carapace, the abdomen without longitudinal median carina and the palm of the first pereopod distinctly longer than wide.
Tipo: Text Palavras-chave: Mid Atlantic Ridge; Hydrothermal vent; Deep sea; Nephropidae; Thymopides.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/publication-888.pdf
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A new species of scale-worm (Polychaeta : Polynoidae), Lepidonotopodium atalantae sp nov., from the East Pacific Rise at 13 degrees N and 9 degrees 50'N ArchiMer
Desbruyeres, Daniel; Hourdez, Stéphane.
A new species of scale-worm, Lepidonotopodium atalantae, belonging to the sub-family Lepidonotopodinae (Polychaeta: Polynoidae) has been found in samples collected on the deep-sea hydrothermal vent sites of 9 degrees N and 13 degrees N on the East Pacific Rise. It is mainly characterized by elytra, regularly ornamented on their posterior border, and very long anal cirri. This is the fifth species of Lepidonotopodium, all belonging to the deep-sea hydrothermal vent fauna.
Tipo: Text Palavras-chave: East Pacific Rise; Hydrothermal vent; Deep sea; Polynoidae; Polychaeta; Annelida.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/publication-891.pdf
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A new species of scale-worm (Polychaeta : Polynoidae), Lepidonotopodium jouinae sp nov., from the Azores Triple Junction on the Mid-Atlantic Ridge ArchiMer
Desbruyeres, Daniel; Hourdez, Stéphane.
A new species of scale-worm, Lepidonotopodium jouinae, belonging to the sub-family Lepidonotopodinae (Polychaeta: Polynoidae) has been found in samples collected on deep-sea hydrothermal vent fields at the Azores Triple Junction on the Mid-Atlantic Ridge. It is the first species of Polynoidae described from the Mid-Atlantic Ridge hydrothermal vents. Other species of the same genus have been described from hydrothermal vents of the Pacific Ocean.
Tipo: Text Palavras-chave: Mid Atlantic Ridge; Hydrothermal vent; Deep sea; Polynoidae; Polychaeta; Annelida.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/publication-892.pdf
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A retrospective analysis of scientific publications on the deep sea from 1987 to 2016 Anais da ABC (AABC)
BOOS,HARRY; RODRIGUES,CHARLES; ARAUJO,PAULA B..
Abstract: The deep sea remains the least known biome. Despite this fact, anthropic activities have affected these regions in various ways. The objective of this study was to outline the scientific production scenario based on deep sea research and to analyze trends present in the literature. For this, the bibliographical resources available from the Web of Science (WoS) were surveyed. Between 1987 and 2016, 11,079 articles on the deep sea were published. Growth was over 100% from the first to second decade and 75% from the second to third. The most productive countries were the USA, Germany, France, England and Japan. Of the 404 journals that published articles on the deep sea, 10% accounted for approximately 60% of the total published articles. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bibliometrics; Databases for scientific publications; Deep sea; Growth rate for science; Information research; Infometrics.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500607
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Addisonia enodis (Vetigastropoda: Lepetelloidea) associated with an elasmobranch egg capsule from the South Atlantic Ocean and the discovery of the species from deep waters off northeastern Brazil Biota Neotropica
Lima,Silvio Felipe Barbosa; Simone,Luiz Ricardo Lopes; Guimarães,Carmen Regina Parisotto.
Abstract A gastropod specimen of the subfamily Addisoniinae Dall, 1882 is reported here for the first time associated with an elasmobranch egg capsule from the South Atlantic Ocean. A specimen of Addisonia enodis Simone, 1996 was found living inside an egg capsule of Atlantoraja castelnaui (Miranda Ribeiro, 1907) (Arhynchobatidae Fowler, 1934) from shallow waters off southeastern Brazil. Previous studies have reported the association of members of the genus Addisonia Dall, 1882 only with the egg capsules of sharks from the family Scyliorhinidae Gill, 1862 and skates from the family Rajidae de Blainville, 1816. Other specimens of A. enodis are also here reported to occur off northeastern Brazil based on shells found in deep waters off the state of Sergipe,...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Gastropoda; Addisoniidae; Addisonia excentrica; South America; Deep sea.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000300501
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CeDAMar global database of abyssal biological sampling ArchiMer
Stuart, Carol T.; Arbizu, Pedro Martinez; Smith, Craig R.; Molodtsova, Tina; Brandt, Angelika; Etter, Ron J.; Escobar-briones, Elva; Fabri, Marie-claire; Rex, Michael A..
The Census of the Diversity of Abyssal Marine Life (CeDAMar), a division of the Census of Marine Life, has compiled the first comprehensive global database of biological samples taken in the abyssal plains of the world ocean. It is an essential resource for planning future exploration of the abyss, for synthesizing patterns of biogeography and biodiversity, and for environmentally safe exploitation of natural resources. The database is described in this article, and made available to investigators through the CeDAMar website.
Tipo: Text Palavras-chave: Abyssal; Marine benthos; Database; Deep sea; Biodiversity.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-6091.pdf
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Characteristics of meiofauna in extreme marine ecosystems: a review ArchiMer
Zeppilli, Daniela; Leduc, Daniel; Fontanier, Christophe; Fontaneto, Diego; Fuchs, Sandra; Gooday, Andrew J.; Goineau, Aurelie; Ingels, Jeroen; Ivanenko, Viatcheslav N.; Kristensen, Reinhardt Mobjerg; Neves, Ricardo Cardoso; Sanchez, Nuria; Sandulli, Roberto; Sarrazin, Jozee; Sorensen, Martin V.; Tasiemski, Aurelie; Vanreusel, Ann; Autret, Marine; Bourdonnay, Louis; Claireaux, Marion; Coquille, Valerie; De Wever, Lisa; Rachel, Durand; Marchant, James; Toomey, Lola; Fernandes, David.
Extreme marine environments cover more than 50% of the Earth’s surface and offer many opportunities for investigating the biological responses and adaptations of organisms to stressful life conditions. Extreme marine environments are sometimes associated with ephemeral and unstable ecosystems, but can host abundant, often endemic and well-adapted meiofaunal species. In this review, we present an integrated view of the biodiversity, ecology and physiological responses of marine meiofauna inhabiting several extreme marine environments (mangroves, submarine caves, Polar ecosystems, hypersaline areas, hypoxic/anoxic environments, hydrothermal vents, cold seeps, carcasses/sunken woods, deep-sea canyons, deep hypersaline anoxic basins [DHABs] and hadal zones)....
Tipo: Text Palavras-chave: Extreme environments; Meiofauna; Mangroves; Submarine caves; Polar ecosystems; Melting ice; Hypersaline areas; Anoxic and hypoxic zones; Hydrothermal vents; Cold seeps; Carcasses and sunken woods; Deep sea; Submarine canyons; Deep hypersaline anoxic basins (DHABs); Hadal zones.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00410/52140/52851.pdf
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Colonization patterns along the equatorial West African margin: Implications for functioning and diversity maintenance of bathyal and abyssal communities ArchiMer
Menot, Lenaick; Crassous, Philippe; Desbruyeres, Daniel; Galeron, Joelle; Khripounoff, Alexis; Sibuet, M..
In the framework of the deep-sea environmental programme BIOZAIRE (Ifremer-Total), colonization trays were deployed for 283-433 days at three sites along the equatorial West African margin: ZA at 1300-m depth, ZC at 4000-m depth far from the Congo canyon and ZD at 4000-m depth close to the Congo canyon. The experiments aimed at determining the influence of depth and local environmental settings on macrofaunal colonization patterns and organic carbon degradation rates. The trays were filled with glass beads and this artificial substrate was enriched with ground particulate organic matter in a gradient of 0%, 0.34%, 1.02% and 3.43% organic carbon. The highest rates of organic carbon degradation ranged, according to the duration of the experiments, from 1.59...
Tipo: Text Palavras-chave: Diversity; Organic enrichment; Macrofauna; Deep sea; Colonization; Biozaire.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-7323.pdf
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Cryptic species of Archinome (Annelida: Amphinomida) from vents and seeps ArchiMer
Borda, Elizabeth; Kudenov, Jerry D.; Chevaldonne, Pierre; Blake, James A.; Desbruyeres, Damien; Fabri, Marie-claire; Hourdez, Stephane; Pleijel, Fredrik; Shank, Timothy M.; Wilson, Nerida G.; Schulze, Anja; Rouse, Greg W..
Since its description from the Galapagos Rift in the mid-1980s, Archinome rosacea has been recorded at hydrothermal vents in the Pacific, Atlantic and Indian Oceans. Only recently was a second species described from the Pacific Antarctic Ridge. We inferred the identities and evolutionary relationships of Archinome representatives sampled from across the hydrothermal vent range of the genus, which is now extended to cold methane seeps. Species delimitation using mitochondrial cytochrome c oxidase subunit I (COI) recovered up to six lineages, whereas concatenated datasets (COI, 16S, 28S and ITS1) supported only four or five of these as clades. Morphological approaches alone were inconclusive to verify the identities of species owing to the lack of discrete...
Tipo: Text Palavras-chave: Deep sea; Hydrothermal vents; Cold methane seeps; Cryptic species; Polychaete.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00157/26814/24961.pdf
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De nouveaux systèmes hôtes-virus associés aux sources hydrothermales océaniques profondes ArchiMer
Boyer, Coraline.
Our knowledge of the viral diversity associated to microorganisms inhabiting the deep-sea hydrothermal vents is still limited. Only a few studies have focused on viral abundance and impact on microbial mortality within these ecosystems. A limited number of viruses (6 bacterioviruses and 2 archaeoviruses) were isolated from these environments and characterized. Two viruses associated to hyperthermophilic anaerobic Archaea, from the Thermococcales order, have been described in our laboratory. In order to deepen our knowledge on the viral diversity of these extreme environments, we have extended our investigation to the bacterial order of Thermotogales. This order is composed of anaerobic chemoorganotrophic bacteria that are, for the most part,...
Tipo: Text Palavras-chave: Bactériovirus; Sources hydrothermales profondes; Éléments génétiques mobiles; Océans profonds; Bacterioviruses; Thermotogales; Deep sea; Hydrothermal vents; Mobile genetic elements.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00609/72129/70881.pdf
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Depth-dependent gene flow in Gulf of Mexico cold seep Lamellibrachia tubeworms (Annelida, Siboglinidae) ArchiMer
Cowart, Dominique; Halanych, Kenneth M.; Schaeffer, Stephen W.; Fisher, Charles R..
Lamellibrachia vestimentiferan tubeworms form aggregations at hydrocarbon cold seeps in the deep Gulf of Mexico (GoM), creating structures that provide living space for other fauna. In the GoM, three Lamellibrachia taxa vary in morphology and depth ranges: Lamellibrachia luymesi (300–950 m), Lamellibrachia sp. 1 (950–2,604 m), and Lamellibrachia sp. 2 (1,175–3,304 m). While Lamellibrachia sp. 2 is consistently identified as a separate species, L. luymesi and sp. 1 cannot be discriminated using barcoding markers cytochrome oxidase subunit 1 (COI) and large ribosomal subunit rDNA (16S). To determine if limited gene flow was a factor in the formation of these taxa, we employed more quickly evolving markers, including mitochondrial cytochrome B (CYTB),...
Tipo: Text Palavras-chave: Deep sea; Hydrocarbon seep; Microsatellite; Population structure; Siboglinid; Vestimentiferan tubeworm.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00194/30494/29935.pdf
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Development of an Effective 6-Methylpurine Counterselection Marker for Genetic Manipulation in Thermococcus barophilus ArchiMer
Birien, Tiphaine; Thiel, Axel; Henneke, Ghislaine; Flament, Didier; Moalic, Yann; Jebbar, Mohamed.
A gene disruption system for Thermococcus barophilus was developed using simvastatin (HMG-CoA reductase encoding gene) for positive selection and 5-Fluoroorotic acid (5-FOA), a pyrF gene for negative selection. Multiple gene mutants were constructed with this system, which offers the possibility of complementation in trans, but produces many false positives (<80%). To significantly reduce the rate of false positives, we used another counterselective marker, 6-methylpurine (6-MP), a toxic analog of adenine developed in Thermococcus kodakarensis, consistently correlated with the TK0664 gene (encoding a hypoxanthine-guanine phosphoribosyl-transferase). We thus replaced pyrF by TK0664 on our suicide vector and tested T. barophilus strain sensitivity to 6-MP...
Tipo: Text Palavras-chave: Archaea; Piezophiles; Hyperthermophiles; Genetics; Gene deletion; Deep sea; Hydrothermal vents.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00425/53679/54523.pdf
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Distribution of bacteria and associated minerals in the gill chamber of the vent shrimp Rimicaris exoculata and related biogeochemical processes ArchiMer
Zbinden, M; Le Bris, Nadine; Gaill, F; Compere, P.
The shrimp Rimicaris exoculata dominates the megafauna of some Mid-Atlantic Ridge hydrothermal vent fields. This species harbours a rich bacterial epibiosis inside its gill chamber. At the 'Rainbow' vent site (36degrees 14.0'N), the epibionts are associated with iron oxide deposits. Investigation of both bacteria and minerals by scanning electron microscopy (SEM) and X-ray microanalysis (EDX) revealed 3 distinct compartments in the gill chamber: (1) the lower pre-branchial chamber, housing bacteria but devoid of minerals; (2) the 'true' branchial chamber, containing the gills and devoid of both bacteria and minerals; and (3) the upper pre-branchial chamber, housing the main ectosymbiotic bacterial community and associated mineral deposits. Our chemical and...
Tipo: Text Palavras-chave: Crustacea; Deep sea; Moulting cycle; Biomineralisation; Symbiosis; Iron oxidation.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/00000/10919/7584.pdf
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Diversity, Distribution and Phylogeny of Hesionidae (Annelida) Colonizing Whale Falls: New Species of Sirsoe and Connections Between Ocean Basins ArchiMer
Shimabukuro, Mauricio; Carrerette, Orlemir; Alfaro-lucas, Joan Manel; Rizzo, Alexandra Elaine; Halanych, Kenneth M.; Sumida, Paulo Yukio Gomes.
Whale falls are important environments contributing to biodiversity, connectivity and evolutionary novelty in deep-sea ecosystem. Notwithstanding, most of this knowledge is based in studies from NE Pacific basin. Interestingly, the only known natural whale fall on the SW Atlantic has faunal composition affinities with carcasses from other deep-ocean basins. In this carcass, annelid worms belonging to Hesionidae are abundant and species-rich, and include some shared species with NE Pacific Ocean. Here we evaluate the diversity of Hesionidae on the SW Atlantic using new information of implanted whale bones and explore whether some species have interbasin distribution or if they represent cryptic species in different basins. We described, using morphological...
Tipo: Text Palavras-chave: Deep sea; Biodiversity; Cryptic species; Biogeography; Connectivity.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00509/62081/66263.pdf
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Dual symbiosis in a Bathymodiolus sp mussel from a methane seep on the gabon continental margin (southeast Atlantic): 16S rRNA phylogeny and distribution of the symbionts in gills ArchiMer
Duperron, Sebastien; Nadalig, Thierry; Caprais, Jean-claude; Sibuet, Myriam; Fiala Medioni, Aline; Amann, Rudolf; Dubilier, Nicole.
Deep-sea mussels of the genus Bathymodiolus (Bivalvia: Mytilidae) harbor symbiotic bacteria in their gills and are among the dominant invertebrate species at cold seeps and hydrothermal vents. An undescribed Bathymodiolus species was collected at a depth of 3,150 m in a newly discovered cold seep area on the southeast Atlantic margin, close to the Zaire channel. Transmission electron microscopy, comparative 16S rRNA analysis, and fluorescence in situ hybridization indicated that this Bathymodiolus sp. lives in a dual symbiosis with sulfide- and methane-oxidizing bacteria. A distinct distribution pattern of the symbiotic bacteria in the gill epithelium was observed, with the thiotrophic symbiont dominating the apical region and the methanotrophic symbiont...
Tipo: Text Palavras-chave: Gabon; Southeast Atlantic; Methane seep; Hydrothermal vent; Deep sea; RRNA analysis; Methane concentration; Gill epithelium; Symbiosis; Bacteria; Mytilidae.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-1266.pdf
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Dynamics of benthic copepods and other meiofauna in the benthic boundary layer of the deep NW Mediterranean Sea ArchiMer
Guidi-guilvard, L. D.; Thistle, D.; Khripounoff, Alexis; Gasparini, S..
A continuous high-resolution time-series survey of the hyperbenthic community and local environmental conditions was conducted in the benthic boundary layer (BBL) of the DYFAMED-BENTHOS station (43 degrees 24.61'N, 7 degrees 51.67'E at 2347 in depth in the NW Mediterranean) between January 1996 and April 1998 using bottom-moored sediment traps and a current meter. Sediment traps were set 4 m above the bottom. Hyperbenthos was collected as 'swimmers', i.e. those organisms that are alive when they enter the traps but are not part of the particle flux. Identification of these organisms showed that similar to 90%, were meiobenthic, Copepods dominated and comprised on average 75%, of total swimmers. They were followed by nauplii (12%), annelids (7.8%),...
Tipo: Text Palavras-chave: Biodiversity; Population growth; Emergence; Resuspension; Benthic storms; Hyperbenthos; Swimmers; Deep sea.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-7416.pdf
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Ecology and trophic role of Oncholaimus dyvae sp. nov. (Nematoda: Oncholaimidae) from the lucky strike hydrothermal vent field (Mid-Atlantic Ridge) ArchiMer
Zeppilli, Daniela; Bellec, Laure; Cambon-bonavita, Marie-anne; Decraemer, Wilfrida; Fontaneto, Diego; Fuchs, Sandra; Gayet, Nicolas; Mandon, Perrine; Michel, Loic; Portail, Marie; Smol, Nic; Sørensen, Martin V.; Vanreusel, Ann; Sarrazin, Jozee.
Background Nematodes are an important component of deep-sea hydrothermal vent communities, but only few nematode species are able to cope to the harsh conditions of the most active vent sites. The genus Oncholaimus is known to tolerate extreme geothermal conditions and high sulphide concentrations in shallow water hydrothermal vents, but it was only occasionally reported in deep-sea vents. In this study, we performed morphological, genetic and ecological investigations (including feeding strategies) on an abundant species of Oncholaimus recently discovered at Lucky strike vent field on the Mid-Atlantic Ridge at 1700 m water depth. Results We described this species as Oncholaimus dyvae sp. nov.. This new species differs from all other members of the genus...
Tipo: Text Palavras-chave: Oncholaimus dyvae sp. nov.; Hydrothermal vents; Deep sea; Carbon and nitrogen isotopic ratios.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00508/61985/66097.pdf
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Expanding the distribution of the Aquificales to the deep-sea vents on Mid-Atlantic Ridge and Central Indian Ridge ArchiMer
Reysenbach, Anna-louise; Gotz, Dorothée; Banta, Amy; Jeanthon, Christian; Fouquet, Yves.
Introduction : Recently, the use of culture-independent molecular phylogenetic techniques has greatly increased our inventory of archaeal and bacterial diversity at deep-sea vents (e.g. Harmsen et al., 1997; Reysenbach et al., 2000; Takai et al., 2001) and several of the lineages appear to be endemic to deep-sea vents (Reysenbach et al., 2000b; Takai et al, 2000; Longnecker & Reysenbach, 2001). Using environmental data, some of these lineages have now been cultivated (L'Haridon et al., 1998; Campbell et al., 2001). For example, until recently, the chemolithoautotrophic and thermophilic bacterial lineage, the Aquificales, was restricted to shallow marine vents and terrestrial thermal springs. However, as part of two independent studies, one in...
Tipo: Text Palavras-chave: Phylogeny; Aquificales; Hydrothermal vent; Deep sea.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/2002/publication-894.pdf
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