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Registros recuperados: 53
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Bonamia ostreae-induced mortalities in one-year old European flat oysters Ostrea edulis: experimental infection by cohabitation challenge ArchiMer
Lallias, Delphine; Arzul, Isabelle; Heurtebise, Serge; Ferrand, Sylvie; Chollet, Bruno; Robert, Maeva; Beaumon, Andy; Boudry, Pierre; Morga, Benjamin; Lapegue, Sylvie.
Bonamiosis is a parasitic disease (causative agent: Bonamia ostreae) affecting the European flat oyster Ostrea edulis, responsible for a drastic decline in its aquaculture production. Selective breeding programs for resistance to bonamiosis have been undertaken to counter this disease. In the present study, a 6-month cohabitation challenge experiment was performed in order to transmit the disease from wild oysters injected with the parasite to two tested families of oysters (20 and 8-month old at the beginning of the experiment, with different genetic backgrounds) originating from a selective breeding program developed by IFREMER in France. Mortalities were checked daily and ventricular heart smears were performed on dying or moribund oysters to detect the...
Tipo: Text Palavras-chave: Heart smear; Transmission; Cohabitation experiment; Bonamia ostreae; Ostrea edulis.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4783.pdf
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Bonamia-ostreae induced mortalities in one-year old European flat oysters Ostrea edulis: experimental infection by cohabitation challenge ArchiMer
Lallias, Delphine; Arzul, Isabelle; Heurtebise, Serge; Ferrand, Sylvie; Chollet, Bruno; Robert, Maeva; Beaumont, Andrew; Boudry, Pierre; Morga, Benjamin; Lapegue, Sylvie.
Bonamiosis is a parasitic disease (causative agent: Bonamia ostreae) affecting the European flat oyster Ostrea edulis, responsible for a drastic decline in the aquaculture production of this oyster species. Therefore a selective breeding program for resistance to bonamiosis has been undertaken since 1985 bu Ifremer, leading to the production of several selected oyster families. In the present study, a 6-month cohabitation challenge experiment was performed in order to transmit the disease from wild oysters (injected with the parasite) to two tested families of oysters originating from the selective breeding program. Mortalities were checked daily, and ventricular heart smears were performed on dying or moribund oysters to detect the level of infection to...
Tipo: Text Palavras-chave: Heart smear; Transmission; Cohabitation experiment; Bonamia ostreae; Ostrea edulis.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/acte-4535.pdf
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Buoy management unit 1 data from the EMSO-Azores observatory, 2010-2011 ArchiMer
Legrand, Julien; Sarradin, Pierre-marie; Cannat, Mathilde.
This dataset contains technical parameters (Voltage in V, internal pressure in mbar, water intrusion detection, tilt in °) acquired between October 2010 and December 2010 by the buoy management unit 1, which is the Electronic core of BOREL, the transmission buoy of the EMSO-Azores observatory (data acquired every 6 hours).
Tipo: Dataset Palavras-chave: Mid-Atlantic Ridge; EMSO; Lucky Strike; Buoy; Time-series; Transmission; MoMAR; BOREL.
Ano: 2015 URL: http://dx.doi.org/10.17882/41843
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Buoy management unit 1 data from the EMSO-Azores observatory, 2011-2012 ArchiMer
Legrand, Julien; Sarradin, Pierre-marie; Cannat, Mathilde.
This dataset contains technical parameters (Voltage in V, internal pressure in mbar, water intrusion detection, tilt in °) acquired between Jannuary 2011 and December 2011 by the buoy management unit 1, which is the Electronic core of BOREL, the transmission buoy of the EMSO-Azores observatory (data acquired every 6 hours).
Tipo: Dataset Palavras-chave: Mid-Atlantic Ridge; EMSO; Lucky Strike; Buoy; Time-series; Transmission; MoMAR; BOREL.
Ano: 2015 URL: http://dx.doi.org/10.17882/41461
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Imprime registro no formato completo
Buoy management unit 1 data from the EMSO-Azores observatory, 2012-2013 ArchiMer
Legrand, Julien; Sarradin, Pierre-marie; Cannat, Mathilde.
This dataset contains technical parameters (Voltage in V, internal pressure in mbar, water intrusion detection, tilt in °) acquired between Jannuary 2012 and December 2012 by the buoy management unit 1, which is the Electronic core of BOREL, the transmission buoy of the EMSO-Azores observatory (data acquired every 6 hours).
Tipo: Dataset Palavras-chave: Mid-Atlantic Ridge; EMSO; Lucky Strike; Buoy; Time-series; Transmission; MoMAR; BOREL.
Ano: 2015 URL: http://dx.doi.org/10.17882/41347
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Imprime registro no formato completo
Buoy management unit 1 data from the EMSO-Azores observatory, 2013-2014 ArchiMer
Legrand, Julien; Sarradin, Pierre-marie; Cannat, Mathilde.
This dataset contains technical parameters (Voltage in V, internal pressure in mbar, water intrusion detection, tilt in °) acquired between September 2013 and February 2014 (n=332) by the buoy management unit 1, which is the Electronic core of BOREL, the transmission buoy of the EMSO-Azores observatory (data acquired every 6 hours).
Tipo: Dataset Palavras-chave: Mid-Atlantic Ridge; EMSO; Lucky Strike; Buoy; Time-series; Transmission; MoMAR; BOREL.
Ano: 2015 URL: http://dx.doi.org/10.17882/39755
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Imprime registro no formato completo
Buoy management unit 1 data from the EMSO-Azores observatory, 2014-2015 ArchiMer
Legrand, Julien; Sarradin, Pierre-marie; Cannat, Mathilde.
This dataset contains technical parameters (Voltage in V, internal pressure in mbar, water intrusion detection, tilt in °) acquired between July 2014 and April 2015 by the buoy management unit 1, which is the Electronic core of BOREL, the transmission buoy of the EMSO-Azores observatory (data acquired every 6 hours).
Tipo: Dataset Palavras-chave: Mid-Atlantic Ridge; EMSO; Lucky Strike; Buoy; Time-series; Transmission; MoMAR; BOREL.
Ano: 2015 URL: http://dx.doi.org/10.17882/41311
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Imprime registro no formato completo
Buoy management unit 2 data from the EMSO-Azores observatory, 2010-2011 ArchiMer
Legrand, Julien; Sarradin, Pierre-marie; Cannat, Mathilde.
This dataset contains technical parameters (Voltage in V, internal pressure in mbar, water intrusion detection, tilt in °) acquired between October 2010 and December 2010 by the buoy management unit 2, which is the Electronic core of BOREL, the transmission buoy of the EMSO-Azores observatory (data acquired every 6 hours).
Tipo: Dataset Palavras-chave: Mid-Atlantic Ridge; EMSO; Lucky Strike; Buoy; Time-series; Transmission; MoMAR; BOREL.
Ano: 2015 URL: http://dx.doi.org/10.17882/41844
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Imprime registro no formato completo
Buoy management unit 2 data from the EMSO-Azores observatory, 2011-2012 ArchiMer
Legrand, Julien; Sarradin, Pierre-marie; Cannat, Mathilde.
This dataset contains technical parameters (Voltage in V, internal pressure in mbar, water intrusion detection, tilt in °) acquired between Jannuary 2011 and December 2011 by the buoy management unit 2, which is the Electronic core of BOREL, the transmission buoy of the EMSO-Azores observatory (data acquired every 6 hours).
Tipo: Dataset Palavras-chave: Mid-Atlantic Ridge; EMSO; Lucky Strike; Buoy; Time-series; Transmission; MoMAR; BOREL.
Ano: 2015 URL: http://dx.doi.org/10.17882/41462
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Imprime registro no formato completo
Buoy management unit 2 data from the EMSO-Azores observatory, 2012-2013 ArchiMer
Legrand, Julien; Sarradin, Pierre-marie; Cannat, Mathilde.
This dataset contains technical parameters (Voltage in V, internal pressure in mbar, water intrusion detection, tilt in °) acquired between Jannuary 2012 and December 2012 by the buoy management unit 2, which is the Electronic core of BOREL, the transmission buoy of the EMSO-Azores observatory (data acquired every 6 hours).
Tipo: Dataset Palavras-chave: Mid-Atlantic Ridge; EMSO; Lucky Strike; Buoy; Time-series; Transmission; MoMAR; BOREL.
Ano: 2015 URL: http://dx.doi.org/10.17882/41349
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Imprime registro no formato completo
Buoy management unit 2 data from the EMSO-Azores observatory, 2013-2014 ArchiMer
Legrand, Julien; Sarradin, Pierre-marie; Cannat, Mathilde.
This dataset contains technical parameters (Voltage in V, internal pressure in mbar, water intrusion detection, tilt in °) acquired between September 2013 and February 2014 (n=332) by the buoy management unit 2, which is the Electronic core of BOREL, the transmission buoy of the EMSO-Azores observatory (data acquired every 6 hours).
Tipo: Dataset Palavras-chave: Mid-Atlantic Ridge; EMSO; Lucky Strike; Buoy; Time-series; Transmission; MoMAR; BOREL.
Ano: 2015 URL: http://dx.doi.org/10.17882/39759
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Imprime registro no formato completo
Buoy management unit 2 data from the EMSO-Azores observatory, 2014-2015 ArchiMer
Legrand, Julien; Sarradin, Pierre-marie; Cannat, Mathilde.
This dataset contains technical parameters (Voltage in V, internal pressure in mbar, water intrusion detection, tilt in °) acquired between July 2014 and April 2015 by the buoy management unit 2, which is the Electronic core of BOREL, the transmission buoy of the EMSO-Azores observatory (data acquired every 6 hours).
Tipo: Dataset Palavras-chave: Mid-Atlantic Ridge; EMSO; Lucky Strike; Buoy; Time-series; Transmission; MoMAR; BOREL.
Ano: 2015 URL: http://dx.doi.org/10.17882/41312
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Imprime registro no formato completo
Can the protozoan parasite Bonamia ostreae infect larvae of flat oysters Ostrea edulis? ArchiMer
Arzul, Isabelle; Langlade, Aime; Chollet, Bruno; Robert, Maeva; Ferrand, Sylvie; Omnes, Emmanuelle; Lerond, Sophie; Couraleau, Yann; Joly, Jean-pierre; Francois, Cyrille; Garcia, Celine.
Bonamia ostreae is an intracellular protistan parasite affecting flat oysters Ostrea edulis. It can be detected in juveniles but mortalities mainly affect oysters which are more than 2 years old. The parasite is usually observed inside haemocytes and sometimes free, notably in gill epithelia suggesting a parasite release through this organ. However, the infective form and ways of entry and release remain undetermined. Flat oysters incubate their larvae in their pallial cavity for 8–10 days before releasing them into the water column. Flat oysters in Bay of Quiberon in South Brittany (France) are known to be infected with B. ostreae since 1979 and is the most important area in France for O. edulis spat collection. Flat oysters incubating larvae were sampled...
Tipo: Text Palavras-chave: Bonamia ostreae; Flat oyster; Ostrea edulis; Transmission; Larvae; Parasite life cycle.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00028/13898/12566.pdf
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Caprine lentivirus in sheep milk and semen Arq. Bras. Med. Vet. Zootec.
Lima,C.C.V.; Ayres,M.C.C.; Pinheiro,R.R.; Costa,J.N.; Andrioli,A.; Souza,T.S.; Azevedo,D.A.A.; Santos,V.W.S.; Araújo,J.F.; Sousa,A.L.M.; Peixoto,R.M.; Damasceno,E.M.; Costa Neto,A.O..
ABSTRACT With the objective of detecting the presence of caprine lentivirus (CLV) in ewe milk and in ram semen, ten matrixes and four reproducers experimentally infected with CLV were used. Samples of ewe milk were collected during the four months of lactation, five collections per animal, totaling 50 samples. Regarding the rams, eight semen collections were made per animal, during one year of experimentation, totaling 32 samples. The milk and semen samples were submitted to DNA extraction and the nested polymerase chain reaction test (nPCR) to detect CLV proviral DNA. Eight (16%) of the milk samples were positive in nPCR originating from two ewes. Only one (3.12%) semen sample was positive. The amplification products were sequenced, and were confirmed to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lentiviruses; Transmission; Cross infection.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000200391
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Challenges and perspectives of Chagas disease: a review J. Venom. Anim. Toxins incl. Trop. Dis.
Pereira,Paulo Câmara Marques; Navarro,Elaine Cristina.
Chagas disease (CD), also known as American trypanosomiasis, is caused by the flagellated protozoan Trypanosoma cruzi, and affects an estimated 8 to 10 million people worldwide. In Latin America, 25 million people live in risk areas, while in 2008 alone, 10,000 CD-related deaths were reported. This review aimed to evaluate the challenges of CD control, future perspectives, and actions performed worldwide to control expansion of the disease and its impact on public health in Latin America.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Control of Chagas disease; Epidemiology; Transmission.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992013000100206
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Chlorotic spots on Clerodendrum, a disease caused by a nuclear type of Brevipalpus (Acari:Tenuipalpidae) transmitted virus Scientia Agricola
Kitajima,Elliot Watanabe; Kubo,Karen Sumire; Ferreira,Paulo de Tarso Oliveira; Alcântara,Berenice Kussumoto de; Boari,Alessandra Jesus; Gomes,Renata Takassugi; Freitas-Astua,Juliana; Rezende,Jorge Alberto Marques; Morais,Gilberto José de; Salaroli,Renato Barbosa.
Chlorotic spots have been observed in plants of Clerodendrum x speciosum growing in residential gardens and parks in Piracicaba, SP, Brazil. Thin sections of diseased tissues revealed characteristic cytopathic effects of the nuclear type of the Brevipalpus (Acari: Tenuipalpidae) mite-transmitted viruses (BTrV). Brevipalpus mites, identified as B. phoenicis, infesting symptomatic C. x speciosum plants transmitted the pathogen to healthy C. x speciosum and to C. thomsonae, Gomphrena globosa, Hibiscus cannabinus, H. coccineus, H. schizopetalus, Salvia leucantha, Spathiphyllum wallasi and Tetragonia expansa causing chlorotic spots on their leaves. Mechanical inoculation using leaf extracts from infected C. x speciosum resulted in chlorotic spots on inoculated...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brevipalpus phoenicis; Clerodendrum x speciosum; Host range; Transmission; Purification.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000100006
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Citrus sudden death-associated virus (CSDaV) and citrus tristeza virus (CTV) in eleven rootstocks for ‘Valência’ sweet orange Rev. Bras. Frutic.
Fadel,André Luiz; Mourão Filho,Francisco de Assis Alves; Stuchi,Eduardo Sanches; Wulff,Nelson Arno; Couto,Hilton Thadeu Zarate.
Abstract Citrus sudden death (CSD) is a highly destructive disease and has caused the eradication of millions of trees in southern Brazil within the last 15 years. In spite of the exact cause of CSD has not been determined, evidences have shown that this disease can be transmitted by biotic vectors. Disease incidence in sweet orange scions is related to the rootstock, and the combination with ‘Rangpur’ lime is the most affected. On the other hand, there are evidences of a relation between CSD affected trees and the presence of the Citrus sudden death associated virus (CSDaV) and/or Citrus tristeza virus (CTV). Based on such information, this study has been carried out to determine the presence of CSDaV and CTV, and the association between each other in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Marafivirus; Poncirus trifoliata; Symptoms; Transmission.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000400403
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Cross-transmission of vancomycin-resistant Enterococcus in patients undergoing dialysis and kidney transplant BJMBR
Fram,D.; Castrucci,F.M.; Taminato,M.; Godoy-Martinez,P.; Freitas,M.C.S.; Belasco,A.; Sesso,R.; Pacheco-Silva,A.; Pignatari,A.C.; Barbosa,D..
The objective of this study was to investigate the occurrence of vancomycin-resistant Enterococcus (VRE) cross-transmission between two patient groups (long-term dialysis and kidney transplant patients). Molecular typing, by automated ribotyping with the RiboPrinter Microbial Characterization System (Qualicon, USA), was used to analyze VRE isolates from 31 fecal samples of 320 dialysis patients and 38 fecal samples of 280 kidney transplant patients. Clonal spread of E. faecalis and E. casseliflavus was observed intragroup, but not between the two groups of patients. In turn, transmission of E. gallinarum and E. faecium between the groups was suggested by the finding of vancomycin-resistant isolates belonging to the same ribogroup in both dialysis and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vancomycin-resistant Enterococcus; Transmission; Dialysis; Kidney transplant.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000100016
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Detection and transmission of Drechslera avenae from oat seed Trop. Plant Pathol.
Carmona,Marcelo A.; Zweegman,Juan; Reis,Erlei M..
Detection, symptoms and symptomless transmission of Drechslera avenae (teleomorph Pyrenophora avenae) from seed were investigated. The present study reported that the D. avenae is frequently found in oat (Avena sativa) seed in Argentina. The prevalence of the seed lot infected was 54%. The incidence of seeds infected by D. avenae in the various seed lots from different regions ranged from 0 to 52% (overall mean of 7%). Besides conidia on conidiophore and immature pseudothecia, D. avenae produced small, spherical to pear-shape picnidia containing tiny conidia, on the seed surface. The pathogen was efficiently transmitted at a rate of 55% from seed to coleoptile tips in symptomless seedlings and at 12.5% to plumules. The importance of the infected seed and...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Pyrenophora avenae; Avena sativa; Seed-borne pathogen; Transmission.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582004000300015
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Electricity Restructuring and Regional Air Pollution AgEcon
Palmer, Karen L.; Burtraw, Dallas.
This paper investigates the regional air pollution effects that could result from new opportunities for inter-regional power transmission in the wake of more competitive electricity markets. The regional focus is important because of great regional variation in the vintage, efficiency and plant utilization rates of existing generating capacity, as well as differences in emission rates, cost of generation and electricity price. Increased competition in generation could open the door to changes in the regional profile of generation and emissions. We characterize the key determinant of changes in electricity generation and transmission as the relative cost of electricity among neighboring regions. In general, low cost regions are expected to export power...
Tipo: Working or Discussion Paper Palavras-chave: Air pollution; Electricity restructuring; Transmission; Environmental Economics and Policy; L94; Q25; Q28.
Ano: 1996 URL: http://purl.umn.edu/10766
Registros recuperados: 53
Primeira ... 123 ... Última
 

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