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A multistrain approach to studying the mechanisms underlying compatibility in the interaction between Biomphalaria glabrata and Schistosoma mansoni ArchiMer
Galinier, Richard; Roger, Emmanuel; Mone, Yves; Duval, David; Portet, Anais; Pinaud, Silvain; Chaparro, Cristian; Grunau, Christoph; Genthon, Clemence; Dubois, Emeric; Rognon, Anne; Arancibia, Nathalie; Dejean, Bernard; Theron, Andre; Gourbal, Benjamin; Mitta, Guillaume.
In recent decades, numerous studies have sought to better understand the mechanisms underlying the compatibility between Biomphalaria glabrata and Schistosoma mansoni. The developments of comparative transcriptomics, comparative genomics, interactomics and more targeted approaches have enabled researchers to identify a series of candidate genes. However, no molecular comparative work has yet been performed on multiple populations displaying different levels of compatibility. Here, we seek to fill this gap in the literature. We focused on B. glabrata FREPs and S. mansoni SmPoMucs, which were previously demonstrated to be involved in snail/schistosome compatibility. We studied the expression and polymorphisms of these factors in combinations of snail and...
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Ano: 2017 URL: https://archimer.ifremer.fr/doc/00388/49951/50515.pdf
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A multivariate approach to explore the genetic variability in the F2 segregating population of a tomato second cycle hybrid JBAG
Cabodevila,V.G; Picardi,L.A; Pratta,G.R.
Segregating progeny from the tomato Second Cycle Hybrids (SCH) that were obtained from crossing RIL (Recombinant Inbred Lines) allows the detection of new genetic combinations that could increase genetic variability in F2 populations. The objectives of the present study were to evaluate eleven tomato quality traits in a segregating F2 population obtained from a SCH and, then, to characterize the molecular diversity by six AFLP (Amplified Fragment Length Polymorphism) primer combinations. Different multivariate analyses were used to assess the degree of concordance among these two approaches to detect genetic variability. Sixty-nine F2 plants were obtained by selfing the SCH (ToUNR18xToUNR1). The parental RIL were derived from an interspecific cross between...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant breeding; Plant genetic resources; Fruit quality; AFLP; Multivariate analysis.
Ano: 2017 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332017000100001
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A neural qualitative approach for automatic territorial zoning. Repositório Alice
MACIEL, R. J. S.; SILVA, M. A. S. da; MATOS, L. N.; DOMPIERI, M. H. G..
This article presents the application of the Self-Organizing Maps (SOM) as an exploratory tool for automatic territorial zoning by combining the handle of categorical data and the other for automatic clustering. The SOM online learning algorithm had been chosen to treat categorical data by using the dot product method and the Sorense-Dice binary similarity coefficient. To automatically perform a spatial clustering, an adaptation of the automatic clustering Costa-Netto algorithm had been also proposed. The correspondence analysis had been used to examine the profiles of each homogeneous zones. To explore the approach it has been performed the territorial zoning of the Alto Taquari River Basin, Brazil, using as input data a set of thematic maps. The results...
Tipo: Anais e Proceedings de eventos Palavras-chave: Bacia do Alto Taquari; Zoneamento; Análise espacial; Self-organizing maps; Exploratory spatial analysis; Similarity coefficients; Alto Taquari River Basin; Correspondence analysis; Zoning; Thematic maps.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1085890
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A never-ending story: the steadily growing family of the FA and FA-like genes Genet. Mol. Biol.
Gueiderikh,Anna; Rosselli,Filippo; Neto,Januario B.C..
Abstract Among the chromosome fragility-associated human syndromes that present cancer predisposition, Fanconi anemia (FA) is unique due to its large genetic heterogeneity. To date, mutations in 21 genes have been associated with an FA or an FA-like clinical and cellular phenotype, whose hallmarks are bone marrow failure, predisposition to acute myeloid leukemia and a cellular and chromosomal hypersensitivity to DNA crosslinking agents exposure. The goal of this review is to trace the history of the identification of FA genes, a history that started in the eighties and is not yet over, as indicated by the cloning of a twenty-first FA gene in 2016.
Tipo: Info:eu-repo/semantics/article Palavras-chave: DNA repair; Leukemia; Fanconi anemia; Chromosomal abnormalities.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000300398
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A New Acetylcholinesterase Inhibitor from Green Glycosylation of Trachyloban-19-oic Acid by Mucor plumbeus Anais da ABC (AABC)
SANTOS,GABRIEL F. DOS; TAKAHASHI,JACQUELINE A..
ABSTRACT The in vitro metabolism of a widespread natural product, trachyloban-19-oic acid (1), by the fungal species Mucor plumbeus was studied in a sucrose-yeast liquid medium. Two products were isolated, and their structures were determined by spectroscopic means as 7β-hydroxytrachyloban-19-oic acid (5) and trachyloban-19-O-β-D-glucopyranosyl ester (6). To the best of our knowledge, compound 6 is herein reported by the first time in the literature. These compounds were assayed for acetylcholinesterase inhibition along with some related compounds. Compound 6 showed the highest acetylcholinesterase inhibitory activity at 10000 µg/mL among the tested compounds, a result (92.89%) comparable to the activity of the positive control, galanthamine (94.21%)....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acetylcholinesterase inhibitors; Biotransformation; Green glycosylation; Mucor plumbeus; Trachyloban-19-oic acid.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000501961
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A new application of principal response curves for summarizing abrupt and cyclic shifts of communities over space ArchiMer
Auber, Arnaud; Travers-trolet, Morgane; Villanueva, Ching-maria; Ernande, Bruno.
There is a growing need to easily describe and synthesize the dynamics of ecosystems’ components in space and time. Most multivariate analyses provide ordination diagrams or biplots that are too cluttered to allow simple reading and are unfamiliar to most users. To overcome such difficulties, a novel application of principal response curves (PRCs) is proposed. Principal response curves are traditionally used to assess treatment effects on community structure measured repeatedly over time. In this new application, the tested factor and the repeated-observation axis are replaced by time and space, respectively. The georeferencing of sampling sites permits to produce an easy-to-read map that summarizes both the temporal dynamics of the community and the...
Tipo: Text Palavras-chave: Fish communities; Multivariate analyses; Partial redundancy analysis; Spatial management tools; Spatio-temporal dynamics.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00413/52478/53266.pdf
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A new approach for plant phenotyping and image segmentation based on contextual information. Repositório Alice
ALVES, G. M.; CRUVINEL, P. E.; SOUZA, G. B.; MARANA, A. N.; LEVADA, A. L. M..
Tipo: Separatas Palavras-chave: Plant phenotyping; Image processing; Contextual information; Advanced method.; Decision making..
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1082524
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A new approach to feed frequency studies and protein intake regulation in juvenile pirarucu Anais da ABC (AABC)
MATTOS,BRUNO O. DE; NASCIMENTO FILHO,EDUARDO C.T.; SANTOS,ALINE A.; BARRETO,KAYCK A.; SÁNCHEZ-VÁZQUEZ,FRANCISCO J.; FORTES-SILVA,RODRIGO.
ABSTRACT This study aimed to investigate pirarucu's (Arapaima gigas) ability to trigger a self-feeding system to regulate protein intake between two standard diets that contained 39% and 49% of crude protein. The same system allowed the evaluation of daily feeding and locomotor activity rhythms. Eighteen fish (654.44±26.85g) were distributed into six 250 L tanks (3 fish/tank). Fish had free access to both diets (39% vs. 49% protein) by feeders (2 per tank), adapted to be activated by fish themselves. This system was connected to a computer system. After an adaptation period, fish learned to activate feeders and the mean food intake recorded was 2.14% of their body weight on a daily basis. Fish showed feeding (72.48%) and locomotor (72.49%) activity...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arapaima gigas; Feeding behavior; Protein intake; Self-feeding.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301243
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A new approach to obtain cellulose nanocrystals and ethanol from Eucalyptus cellulose pulp via biochemical pathway. Repositório Alice
BONDANCIA, T. J.; MATTOSO, L. H. C.; MARCONCINI, J. M.; FARINAS, C. S..
Tipo: Artigo de periódico Palavras-chave: Cellulose nanocrystal; Cellulosic ethanol; Enzimatic hydrolysis; Biorefinery; Renewable biomass.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1081071
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A new classification scheme of European cold-water coral habitats: implications for ecosystem-based management of the deep sea ArchiMer
Davies, J. S.; Guillaumont, Brigitte; Tempera, Fernando; Vertino, A.; Beuck, L.; Olafsdottir, S. H.; Smith, C. J.; Fossa, J. H.; Van Den Beld, Inge; Savini, A.; Rengstorf, A.; Bayle, Christophe; Bourillet, Jean-francois; Arnaud-haond, Sophie; Grehan, A..
Cold-water coral (CWC) habitats can form complex structures which provide refuge, nursery grounds and physical support for a diversity of other living organisms, but despite their ecological significance, CWCs are still vulnerable to human pressures such as fishing, pollution, ocean acidification and global warming Providing coherent and representative conservation of vulnerable marine ecosystems including CWCs is one of the aims of the Marine Protected Areas networks being implemented across European seas and oceans under the EC Habitats Directive, the Marine Strategy Framework Directive and the OSPAR Convention. In order to adequately represent ecosystem diversity these initiatives require a standardised habitat classification that organises the variety...
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Ano: 2017 URL: http://archimer.ifremer.fr/doc/00383/49474/49961.pdf
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A new climate index controlling winter wave activity along the Atlantic coast of Europe: The West Europe Pressure Anomaly ArchiMer
Castelle, Bruno; Dodet, Guillaume; Masselink, Gerd; Scott, Tim.
A pioneering and replicable method based on a 66-year numerical weather and wave hindcast is developed to optimize a climate index based on the sea level pressure (SLP) that best explains winter wave height variability along the coast of western Europe, from Portugal to UK (36-52 degrees N). The resulting so-called Western Europe Pressure Anomaly (WEPA) is based on the sea level pressure gradient between the stations Valentia (Ireland) and Santa Cruz de Tenerife (Canary Islands). The WEPA positive phase reflects an intensified and southward shifted SLP difference between the Icelandic low and the Azores high, driving severe storms that funnel high-energy waves toward western Europe southward of 52 degrees N. WEPA outscores by 25-150% the other leading...
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Ano: 2017 URL: https://archimer.ifremer.fr/doc/00606/71850/70485.pdf
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A New Discrimination Scheme for Oceanic Ferromanganese Deposits using High Field Strength and Rare Earth Elements ArchiMer
Josso, P.; Pelleter, Ewan; Pourret, O.; Fouquet, Yves; Etoubleau, Joel; Cheron, Sandrine; Bollinger, C..
Ferromanganese (Fe-Mn) deposits constitute a ubiquitous mineral type in oceanic settings, with metal (Cu, Ni, Zn, Co, Pt) and rare earth elements (REE) enrichments of potential economic interest. Routine analysis of trace elements by ICP-MS has advanced our understanding of the impact of hydrogenetic, diagenetic and hydrothermal processes on the mobility and interaction of high field strength elements (HFSE: Zr, Ti) and REE and yttrium (REY) with Fe-Mn oxyhydroxides. Recent discoveries in the French exclusive economic zone (EEZ) of Wallis and Futuna (southwest Pacific Ocean) have brought new insight to the formation of low temperature (LT) hydrothermal Mn deposits and lead us to reconsider the classification and discrimination diagrams for of Fe-Mn...
Tipo: Text Palavras-chave: Ferromanganese mineralization; Hydrogenetic crusts; Nodules; Hydrothermal deposits; Rare earth elements; High field strength elements; Classification.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00350/46156/45854.pdf
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A new family, Pervetustaceae with a new genus, Pervetustus, and P. simplex sp. nov. (Paraglomerales), and a new genus, Innospora with I. majewskii comb. nov. (Paraglomeraceae) in the Glomeromycotina Organic Eprints
Błaszkowski, Janusz; Kozłowska, Anna; Crossay, Thomas; Symanczik, Sarah; Al-Yahya'ei, Mohamed N..
A new arbuscular mycorrhizal, Paraglomus-like, fungal species (Glomeromycotina) was found and propagated in single-species cultures established from spores coming from Oman, Greece, Tunisia, and New Caledonia. The hyaline spores of the fungus are small, 17–67 μm diam. when globose. Their spore wall consists of an evanescent, 1.0–2.3 μm thick, short-lived outer layer and a laminate, smooth, 3.8–7.3 μm thick inner layer, of which none shows amyloid or dextrinoid reaction in Melzer's reagent. Mycorrhizal structures (arbuscules and hyphae without vesicles) of the fungus stained slightly in Trypan blue, thus like those of the formerly described Paraglomus spp., in which the histochemical feature has been recognized. However, in the phylogenies gained from...
Tipo: Journal paper Palavras-chave: Soil Crop health; Quality; Protection.
Ano: 2017 URL: http://orgprints.org/33350/1/Blaszkovski-etal-2017_NovaHedwigia_Vol105_Issue3-4_pp397-410.pdf
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A new generation of Tropical Cyclone Size measurements from space ArchiMer
Reul, Nicolas; Chapron, Bertrand; Zabolotskikh, E.; Donlon, C.; Mouche, Alexis; Tenerelli, Joseph; Collard, F.; Piolle, Jean-francois; Fore, A.; Yueh, S.; Cotton, J.; Francis, P.; Quilfen, Yves; Kudryavtsev, V..
Combined microwave brightness temperature measurements from recent L- and dual C-band satellite radiometers provide new estimates of surface wind speed structure in Tropical Cyclones which enhances temporal sampling capability for gale (34-knots), damaging (50-knots) and destructive (64-knots) wind radii. Wind radii estimates in Tropical Cyclones (TC) are crucial to help determine the TC wind structure for the production of effective warnings and to constrain initial conditions for a number of applications. In that context, we report on the capabilities of a new generation of satellite microwave radiometers operating at L-band frequency (~1.4 GHz) and dual C-band (~6.9 and 7.3 GHz). These radiometers provide wide swath (> 1000 km) coverage at a spatial...
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Ano: 2017 URL: http://archimer.ifremer.fr/doc/00376/48758/49151.pdf
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A new genus and species of Lasiopteridi (Diptera, Cecidomyiidae) on Haplopappus foliosus (Asteraceae) from Chile Rev. Bras. entomol.
Maia,Valéria Cid; Villagra,Cristian A..
ABSTRACT A new genus and species of gall midge, Haplopappusmyia gregaria, is described and illustrated (larva, pupa, male, and female). This species induces apical galls on Haplopappus foliosus (Asteraceae), an endemic shrub from central Chile. The specimens were collected at La Ligua Municipality, Petorca Province, Valparaiso region, Chile, during spring of 2011-2014. This area corresponds to one of the fifth Mediterranean Matorral biome, considered among Earth's biodiversity hotspots. The new genus is characterized by presenting lateral margin of antennal scape with a mesal reentrance; four-segmented palpus, one-toothed tarsal claws, R5 straight, reaching C anterior to wing apex; male seventh and eighth tergites lacking sclerotization mesally, beyond...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gall midge; Morphology; Neotropical; Taxonomy.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000200162
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A new genus of Neotropical rheophilic catfishes, with four new species (Teleostei: Siluriformes: Pseudopimelodidae) Neotropical Ichthyology
Shibatta,Oscar Akio; Vari,Richard P..
ABSTRACT Rhyacoglanis, a new genus of the South American freshwater catfish family Pseudopimelodidae is described from cis-Andean portions of the continent. Rhyacoglanis is distinguished from other genera of the family by three synapomorphies: presence of a light blotch on the cheek; a connection between the middle of the dark caudal-fin stripe and the dark caudal-peduncle pigmentation; and 30-35 total vertebrae. Species of Rhyacoglanis are rheophilic and strongly associated with rapids and other swift-flowing waters. A phylogenetic analysis based on 41 morphological characters yields a hypothesis of monophyly of the Pseudopimelodidae and Rhyacoglanis. Pimelodus pulcher Boulenger, 1887, from the western Amazon basin is designated as type-species of the new...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Identification key; Phylogeny; Systematics; Taxonomy.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000200208
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A New Glider-Compatible Optical Sensor for Dissolved Organic Matter Measurements: Test Case from the NW Mediterranean Sea ArchiMer
Cyr, Frédéric; Tedetti, Marc; Besson, Florent; Beguery, Laurent; Doglioli, Andrea M.; Petrenko, Anne A.; Goutx, Madeleine.
The MiniFluo-UV is a new glider-compatible optical sensor for measurements of dissolved organic matter (DOM) in natural waters. The working principle, sensor design and challenges faced during the validation phase are reported. The first in situ application of the sensor during three glider deployments in the NW Mediterranean sea (spring, summer, and fall) are also presented. For these campaigns, the two channels of the sensor were adjusted to target Tryptophan-like (excitation/emission wavelengths λEx/λEm: 275/340 nm) and Phenanthrene-like (λEx/λEm: 255/360 nm) fluorescence. These were chosen because they represent fluorophores of interest commonly found in seawater. While Tryptophan (an amino-acid believed to be a by-product of biological activity) is...
Tipo: Text Palavras-chave: MiniFluo-UV; Fluorescence; Glider; Dissolved organic matter; Tryptophan; Phenanthrene; Mediterranean Sea.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00654/76597/77747.pdf
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A new model for describing remission times: the generalized beta-generated Lindley distribution Anais da ABC (AABC)
LIMA,MARIA DO CARMO S.; CORDEIRO,GAUSS M.; NASCIMENTO,ABRAÃO D.C.; SILVA,KÁSSIO F..
New generators are required to define wider distributions for modeling real data in survival analysis. To that end we introduce the four-parameter generalized beta-generated Lindley distribution. It has explicit expressions for the ordinary and incomplete moments, mean deviations, generating and quantile functions. We propose a maximum likelihood procedure to estimate the model parameters, which is assessed through a Monte Carlo simulation study. We also derive an additional estimation scheme by means of least square between percentiles. The usefulness of the proposed distribution to describe remission times of cancer patients is illustrated by means of an application to real data.
Tipo: Info:eu-repo/semantics/article Palavras-chave: GBG generator; Remission times; Extended Lindley model; Quantile function; Lambert function.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401343
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A new name for Agromyza flava Sousa & Couri (Diptera: Agromyzidae) Anais da ABC (AABC)
SOUSA,VIVIANE R. DE; COURI,MÁRCIA S..
ABSTRACT A new name Agromyza pauciflava nom. nov. is proposed for Agromyza flava Sousa & Couri.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Agromyzidae; Name correction; Nomenclature; Taxonomy.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401641
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A new pygmy leafmining moth, Stigmella tatrica sp. n., from the alpine zone of the Tatra Mountains (Lepidoptera, Nepticulidae) Naturalis
Tokár, Z.; Laštůvka, A.; Nieukerken, E.J. van.
Stigmella tatrica sp. n. is described from moths taken in the alpine zone of the Tatra Mountains in Slovakia. The new species is similar to several other montane species of Stigmella Schrank, 1802 in the S. aurella (Fabricius, 1775) group in external characters and male genitalia; its closest relative is S. dryadella (O. Hofmann, 1868). It is indistinguishable from S. tormentillella (Herrich-Schäffer, 1860) by the colour and pattern elements of the forewing; however, it differs in the male genitalia in the shape and number of cornuti, in the female genitalia by long apophyses with protruding ovipositor, and by COI barcodes. Immature stages are unknown, but Dryas octopetala L. (Rosaceae) is the possible hostplant. The long ovipositor suggests an unusual,...
Tipo: Article / Letter to the editor Palavras-chave: Leaf miners; Moths; Slovakia; New species.
Ano: 2017 URL: http://www.repository.naturalis.nl/record/648822
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