Base de dados : MEDLINE
Pesquisa : B01.043.185.375 [Categoria DeCS]
Referências encontradas : 7 [refinar]
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  1 / 7 MEDLINE  
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[PMID]:20226640
[Au] Autor:Bartsch I; Dovgal IV
[Ad] Endereço:Forschungsinstitut Senckenberg, c/o DESY, Notkestrasse 85, 22607 Hamburg, Germany. bartsch@meeresforschung.de
[Ti] Título:A hydrothermal vent mite (Halacaridae, Acari) with a new Corynophrya species (Suctoria, Ciliophora), description of the suctorian and its distribution on the halacarid mite.
[So] Source:Eur J Protistol;46(3):196-203, 2010 Aug.
[Is] ISSN:1618-0429
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Copidognathus nautilei Bartsch, 1997, from a hydrothermal vent field of the Mid-Atlantic Ridge at about 13 degrees N, 45 degrees W and 4090 m depth, was infested with the suctorian Corynophrya abyssalis n. sp., with up to 58 epizoans per mite. The new suctorian has a sacciform body with seven longitudinal ribs, a compact macronucleus and up to 40 non-retractile tentacles. The budding is exogenous. The systematic position of the new species and the genus Corynophrya is discussed, as well as infestation rates and sites of suctorians on their halacarid hosts.
[Mh] Termos MeSH primário: Ácaros e Carrapatos/parasitologia
Fontes Termais/parasitologia
Cinetofragminóforos/classificação
Cinetofragminóforos/isolamento & purificação
[Mh] Termos MeSH secundário: Animais
Oceano Atlântico
Feminino
Cinetofragminóforos/citologia
Masculino
Microscopia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1010
[Cu] Atualização por classe:100708
[Lr] Data última revisão:
100708
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:100316
[St] Status:MEDLINE
[do] DOI:10.1016/j.ejop.2010.02.001


  2 / 7 MEDLINE  
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[PMID]:8674137
[Au] Autor:Iwadate Y; Asai H
[Ad] Endereço:Department of Physics, Waseda University, Tokyo, Japan.
[Ti] Título:Improved preparation and swimming behavior of Triton-extracted models of Didinium nasutum.
[So] Source:Cell Motil Cytoskeleton;33(3):175-82, 1996.
[Is] ISSN:0886-1544
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:An improved method for the preparation of Triton X-100 extracted models of Didinium nasutum was established. Didinium models prepared by treatment with a Triton X-100 solution, containing specific proteolysis inhibitors and dimethyl sulfoxide, maintained an intact shape at 25 degrees C for a longer time than models prepared by treatment with a Triton X-100 solution not containing the proteolysis inhibitors and dimethyl sulfoxide. The improved Didinium models were reactivated so as to swim forward in the presence of Mg2+ and ATP or ADP. They did not swim backward in response to Ca2+, in contrast to well-known Paramecium models. However, the improved Didinium models showed circular swimming and spinning in response to 10(-6) M or higher concentrations of Ca2+. This observation suggests that the quick directional change as well as the spinning, which are characteristic of live Didinium, are due to an increase in the endoplasmic Ca2+ concentration around the ciliary system. The response of the Didinium ciliary system to Ca2+ may differ from the response of the Paramecium ciliary system to Ca2+.
[Mh] Termos MeSH primário: Cinetofragminóforos/fisiologia
Modelos Estruturais
[Mh] Termos MeSH secundário: Trifosfato de Adenosina/farmacocinética
Animais
Cálcio/farmacocinética
Movimento Celular
Cílios/fisiologia
Dimetil Sulfóxido
Cinetofragminóforos/ultraestrutura
Magnésio/farmacocinética
Concentração Osmolar
Polietilenoglicóis
Inibidores de Proteases
Natação/fisiologia
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Protease Inhibitors); 30IQX730WE (Polyethylene Glycols); 8L70Q75FXE (Adenosine Triphosphate); I38ZP9992A (Magnesium); SY7Q814VUP (Calcium); YOW8V9698H (Dimethyl Sulfoxide)
[Em] Mês de entrada:9608
[Cu] Atualização por classe:151119
[Lr] Data última revisão:
151119
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:960101
[St] Status:MEDLINE


  3 / 7 MEDLINE  
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[PMID]:7585883
[Au] Autor:Evans RL; Cuthbertson KS; McCrohan CR; Butler RD
[Ad] Endereço:School of Biological Sciences, University of Manchester, UK.
[Ti] Título:Intracellular calcium transients in suctorian protozoa (Trichophrya spp.): correlation with spontaneous tentacle contractions.
[So] Source:Cell Calcium;18(1):51-63, 1995 Jul.
[Is] ISSN:0143-4160
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The luminescent photoprotein aequorin was used to measure intracellular free Ca2+ in three species of suctorian protozoon, Trichophrya riederi, Trichophrya collini and Trichophrya rotunda. Resting [Ca2+]i ranged from about 75-110 nM, and was unaffected by a change in temperature of the perfusate. Spontaneous Ca2+ transients were observed in all three species, with peak amplitudes ranging from 100-600 nM. In T. riederi and T. rotunda, three categories of transient (small, intermediate, large) were recorded; T. collini displayed only small transients. In both T. riederi and T. collini, raising the temperature from 5 degrees to 26 degrees C led to an increase in the frequency of transients. Furthermore, in T. riederi, large transients occurred only at the higher temperature. The frequency of spontaneous contractions of the tentacles of T. riederi was also temperature-dependent. Increasing the temperature over the range 5-26 degrees C led to a concomitant increase in contraction frequency and a decrease in mean tentacle length. The possible mechanisms of spontaneous Ca2+ transient generation and their role in the control of contraction are discussed.
[Mh] Termos MeSH primário: Cálcio/metabolismo
Cinetofragminóforos/fisiologia
[Mh] Termos MeSH secundário: Equorina
Animais
Líquido Intracelular/metabolismo
Transporte de Íons
Cinetofragminóforos/metabolismo
Medições Luminescentes
Movimento/fisiologia
Especificidade da Espécie
Temperatura Ambiente
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
50934-79-7 (Aequorin); SY7Q814VUP (Calcium)
[Em] Mês de entrada:9512
[Cu] Atualização por classe:131121
[Lr] Data última revisão:
131121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:950701
[St] Status:MEDLINE


  4 / 7 MEDLINE  
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[PMID]:8167616
[Au] Autor:Dehority BA
[Ad] Endereço:Department of Animal Science, Ohio State University, Wooster 44691-4096.
[Ti] Título:Rumen ciliate protozoa of the blue duiker (Cephalophus monticola), with observations on morphological variation lines within the species Entodinium dubardi.
[So] Source:J Eukaryot Microbiol;41(2):103-11, 1994 Mar-Apr.
[Is] ISSN:1066-5234
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Protozoal concentrations were determined in rumen and cecal contents of 20 blue duikers (Cephalophus monticola). Ten animals of each sex were fed either a high concentrate or high roughage diet. Rumen protozoa were present in 19 of the 20 animals and concentrations ranged from 4.5 to 33.7 x 10(6) per g of rumen contents. At the higher concentrations, protozoal cells equaled between 30-40% of the total rumen contents volume. No protozoa were found in cecal contents. Weight of rumen contents was higher in females than in males (P < 0.01), and rumen protozoa concentrations were higher in males (P < 0.05) and in those animals fed the high concentrate diet (P < 0.05). All the protozoa were identified as belonging to a single species, Entodinium dubardi. However, an average of about 30% of the E. dubardi cells varied from the typical morphology of this species. These cells appeared to be on variation lines leading toward 7-10 other non-caudate species of Entodinium. The present data were used to evaluate and discuss the concept of variation lines within E. dubardi.
[Mh] Termos MeSH primário: Antílopes/parasitologia
Cinetofragminóforos/isolamento & purificação
Rúmen/parasitologia
[Mh] Termos MeSH secundário: Animais
Feminino
Variação Genética
Cinetofragminóforos/citologia
Masculino
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:9406
[Cu] Atualização por classe:081121
[Lr] Data última revisão:
081121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:940301
[St] Status:MEDLINE


  5 / 7 MEDLINE  
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[PMID]:7866384
[Au] Autor:Rintamäki P; Torpström H; Bloigu A
[Ad] Endereço:Department of Zoology, University of Oulu, Finland.
[Ti] Título:Chilodonella spp. at four fish farms in northern Finland.
[So] Source:J Eukaryot Microbiol;41(6):602-7, 1994 Nov-Dec.
[Is] ISSN:1066-5234
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A total of 4.1% infestation with Chilodonella spp. was found among fish studied in 144 tanks in 1987-1989, representing 14.0% of the tanks in which fish are reared at four salmonid farms in northern Finland. Two species were found, C. hexasticha and C. piscicola, and both occurred on salmon (Salmo salar L.), sea trout [S. trutta m. trutta (L.)] and brown trout [S. t. m. lacustris (L.)]. Variability was observed in the length and width of the C. piscicola specimens and the number of ciliary rows or kineties. Large specimens which had more kineties than average for C. piscicola were found mainly on the skin of salmon aged 1-2 years. The number of kineties in the right ciliary band was found in stepwise logistic regression analysis to be of importance when typing C. piscicola specimens. Fingerlings were found to be more susceptible to Chilodonella infestation than older fish, and mortality varied in the range 2-10% in the course of the epizootics in the three fish species. Most mortality cases were caused by C. hexasticha, occurring mainly on the gills of the fish. Chilodonella piscicola was most often found in salmon and occurred at lower water temperatures than C. hexasticha (mean water temperature when found for the first time being 13 degrees C and 16 degrees C, respectively).
[Mh] Termos MeSH primário: Infecções por Cilióforos/veterinária
Doenças dos Peixes/parasitologia
Pesqueiros
Cinetofragminóforos/isolamento & purificação
Salmão/parasitologia
Truta/parasitologia
[Mh] Termos MeSH secundário: Animais
Infecções por Cilióforos/parasitologia
Finlândia
Brânquias/parasitologia
Cinetofragminóforos/citologia
Pele/parasitologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:9503
[Cu] Atualização por classe:061115
[Lr] Data última revisão:
061115
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:941101
[St] Status:MEDLINE


  6 / 7 MEDLINE  
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[PMID]:8457804
[Au] Autor:Eperon S; Viguès B; Peck RK
[Ad] Endereço:Department of Zoology, University of Geneva, Switzerland.
[Ti] Título:Immunological characterization of trichocyst proteins in the ciliate Pseudomicrothorax dubius.
[So] Source:J Eukaryot Microbiol;40(1):81-91, 1993 Jan-Feb.
[Is] ISSN:1066-5234
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Ejectable trichocysts were isolated from the ciliate Pseudomicrothorax dubius. Polyclonal antibodies were raised against three groups of trichocyst proteins: G1 (30-31 kDa), G2 (26-27 kDa) and G3 (15-20 kDa). By indirect immunofluorescence, the three antisera strongly label the shafts of ejected trichocysts and the proximal ends of condensed trichocysts within the cells. By immunogold labeling for electron microscopy, the three sera specifically recognize the shafts of both extended and condensed trichocysts and shaft precursors in pretrichocysts as well. On one-dimensional immunoblots of isolated trichocysts, anti-G1 serum recognizes the G1 proteins, anti-G2 serum detects G2 proteins and some G1 proteins, and anti-G3 serum reacts with 15 bands, mainly the G3 and (30-41)-kDa proteins. In cells with and without trichocysts, the sera recognize non-ejectable trichocyst proteins at 41-42 kDa and 47 kDa. On two-dimensional immunoblots of isolated trichocysts, anti-G1 serum labels proteins with a pI of 4.75-5.7, anti-G2 serum labels proteins with a pI of 4.75-6.25 and anti-G3 serum labels proteins with a pI of 4.7-6.6. Analyses of cells with and without trichocysts allow identification of possible precursors between 41 and 47 kDa. Some are in the same pI range as their putative products, but others, labeled by anti-G3 serum, are less acidic than most of their mature products.
[Mh] Termos MeSH primário: Cinetofragminóforos/imunologia
Proteínas de Protozoários/imunologia
[Mh] Termos MeSH secundário: Animais
Anticorpos Antiprotozoários/imunologia
Western Blotting
Imunofluorescência
Immunoblotting
Cinetofragminóforos/ultraestrutura
Microscopia Imunoeletrônica
Proteínas de Protozoários/ultraestrutura
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antibodies, Protozoan); 0 (Protozoan Proteins)
[Em] Mês de entrada:9304
[Cu] Atualização por classe:061115
[Lr] Data última revisão:
061115
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:930101
[St] Status:MEDLINE


  7 / 7 MEDLINE  
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[PMID]:1920147
[Au] Autor:Esteban F; Téllez C; Muñoz A
[Ad] Endereço:Centro de Investigaciones del Agua, C.S.I.C., La Poveda, Madrid, Spain.
[Ti] Título:Infraciliature, morphogenesis and life cycle of Endosphaera terebrans (Suctoria, Tokophridae).
[So] Source:J Protozool;38(5):483-8, 1991 Sep-Oct.
[Is] ISSN:0022-3921
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The morphology, infraciliature, and life cycle of Endosphaera terebrans, a suctorian endocommensal of peritrichs, have been studied with the aid of silver impregnation. The life cycle of Endosphaera terebrans begins with infection of the host cell by a small larva. The swarmer has a pointed needle-like cellular projection and two rings of cilia. The swarmer penetrates the the peritrich, loses the cilia, and then matures into an adult. The infraciliature of the adult form has four rows of barren kinetosomes that lack kinetodesmal fibers. By endogenous budding, a migratory larva is produced that leaves the host cell through the peristomial disc and that can infect other peritrichs.
[Mh] Termos MeSH primário: Cinetofragminóforos/citologia
[Mh] Termos MeSH secundário: Animais
Cílios
Cilióforos/parasitologia
Cinetofragminóforos/crescimento & desenvolvimento
Larva
Morfogênese
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:9110
[Cu] Atualização por classe:031114
[Lr] Data última revisão:
031114
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:910901
[St] Status:MEDLINE



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