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Advances in studies on testate amoebae (Arcellinida and Euglyphida): a scientometric approach - doi: 10.4025/actascibiolsci.v35i4.18184 Biological Sciences
Schwind, Leilane Talita Fatoreto; Universidade Estadual de Maringá; Dias, Juliana Déo; Universidade Estadual de Maringá; Joko, Ciro Yoshio; Centro de Ensino Unificado do Distrito Federal; Bonecker, Claudia Costa; Universidade Estadual de Maringá; Lansac-Tôha, Fábio Amodêo; Universidade Estadual de Maringá.
Testate amoebae have a great potential for use in scientific researches due to their ecological characteristics such as abundance, wealth, and generation time. In this way, this study aimed to present a scientometric analysis to describe the evolution of the different advances in researches on testate amoebae and identify a temporal pattern in this evolution. The literature review was based on papers indexed by Thomson Reuters (www.isiwebofknowledge.com) and SciVerse Scopus (www.scopus.com). In total 562 papers were examined. Results showed a pattern of evolution in scientific studies, most with ecological approach with descriptive and predictive designs. At the global level, researches on testate amoebae progressed in both the number of articles published...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.00.00.00-6; 2.05.00.00-9 protest; Geographical distribution; Scientometric analysis; Time trend Ciências Biológicas e Ecologia.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/18184
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Anisakidae nematodes in the blackfin goosefish, Lophius gastrophysus Miranda-Ribeiro, 1915 purchased in the State of Rio de Janeiro, Brazil - doi: 10.4025/actascibiolsci.v35i1.12185 Biological Sciences
Knoff, Marcelo; Instituto Oswaldo Cruz; São Clemente, Sergio Carmona; Universidade Federal Fluminense; Fonseca, Michelle Cristie Gonçalves da; Instituto Oswaldo Cruz; Felizardo, Nilza Nunes; Instituto Oswaldo Cruz; Lima, Francisco Carlos de; Universidade Federal Fluminense; Pinto, Roberto Magalhães; Instituto Oswaldo Cruz; Gomes, Delir Corrêa; Instituto Oswaldo Cruz.
The blackfin goosefish is included in a prized fish category, representing valuable fishery resource worldwide. The aim of this study was to identify the Anisakidae larvae parasitizing this fish species, considering the hygienic-sanitary and public health importance of these parasites infecting specimens of the blackfin goosefish, Lophius gastrophysus Miranda-Ribeiro, 1915 (Lophiidae), purchased from markets in the municipalities of Cabo Frio, Niterói, Duque de Caxias and Rio de Janeiro; parasitological indices and sites of infection are presented. From March 2000 to December 2005, 87 specimens of Lophius gastrophysus were investigated for helminths. Seventeen fish (19.5%) were parasitized with larvae of anisakid nematodes. Anisakis simplex,...
Palavras-chave: 2.00.00.00-6; 2.13.02.00-6 Anisakis simplex; Hysterothylacium; Raphidascaris; Larvae; Lophius gastrophysus Helmintologia de Parasitos.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/12185
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Community structure of metazoan parasites of Trichiurus lepturus (Perciformes, Trichiuridae) from Ubatuba, Southwestern Atlantic Ocean,Brazil Biological Sciences
Bueno, Glauco Baptista Franco; Universidade de Taubaté; Cenci de Aguiar, Julio Cesar; Centro Nacional de Pesquisa e Conservação de Peixes Continentais - CEPTA/ICMBio; Santos, Sonia Maria Cursino dos; Universidade de Taubaté.
This study aimed to evaluate the community structure of metazoan parasites of Trichiurus lepturus from Ubatuba, Brazil. Fifty fish were collected in February 2008. Our statistical approach consisted in evidencing the most interesting infrapopulations, in order to try to understand the relationship between the variables regulating them. This analysis was based on a Poisson generalized linear model (GLM) developed with selection of variables using the corrected Akaike Information Criterion (AICc) and AIC weight. Larvae of Anisakidae and Lecithochirium microstomum seems to play an important role on this host-parasite system and their abundances were influenced by the ontogenetic shift in feeding of the hosts. Changes in characteristics of hosts included a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.00.00.00-6; 2.13.00.00-3 South America; Marine; Parasite ecology 2.05.00.00-9.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/21908
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Current and historical climate signatures to deconstructed tree species richness pattern in South America - doi: 10.4025/actascibiolsci.v35i2.14202 Biological Sciences
Lima-Ribeiro, Matheus Souza; Universidade Federal de Goias; Faleiro, Frederico Valtuille; Universidade Federal de Goias; Silva, Daniel Paiva; Universidade Federal de Goias.
The purpose of this study was to investigate the importance of present and historical climate as determinants of current species richness pattern of forestry trees in South America. The study predicted the distribution of 217 tree species using Maxent models, and calculated the potential species richness pattern, which was further deconstructed based on range sizes and modeled against current and historical climates predictors using Geographically Weighted Regressions (GWR) analyses. The current climate explains more of the wide-ranging species richness patterns than that of the narrow-ranging species, while the historical climate explained an equally small amount of variance for both narrow-and-wide ranging tree species richness patterns. The richness...
Tipo: Padrões espaciais Palavras-chave: 2.00.00.00-6; Current and historical climate signatures to deconstructed tree species richness pattern in South America; Ecologia Aplicada.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/14202
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Effects of cutting disturbance in Schoenoplectus californicus (C.A. Mey.) Soják on the benthic macroinvertebrates - doi: 10.4025/actascibiolsci.v33i1.6383 Biological Sciences
Silveira, Thiago Cesar Lima; UFRGS; Rodrigues, Gilberto Gonçalves; UFBA; Souza, Gabriela Peixoto Coelho de; UFRGS; Würdig, Norma Luiza; UFRGS.
Lagoons are considered protected areas because these systems play a key ecological role. However, the extraction of macrophyte Schoenoplectus californicus is held for manufacture of handcrafts, being an alternative income for riverbank communities. This study evaluated the impact of S. californicus experimental cutting on benthic macroinvertebrates trough a field experiment. Macroinvertebrates were sampled at 1, 12, 26 and 60 days after the macrophyte cutting in demarked plots (1 m²), as well at control plots. The families number was not statistically different (ANOVA, p > 0.05), but the total density of invertebrates, and the density of Ceratopogonidae were significant (ANOVA, p < 0.05) for interaction between sampling date and treatment. A...
Palavras-chave: 2.00.00.00-6; 2.05.00.00-9; Disturbance; Bioindication; Vegetal management; Schoenoplectus californicus; Aquatic macrophyte; Non-wood products Ecologia Disturbance; Bioindication; Vegetal management; Schoenoplectus californicus; Aquatic macrophyte; Non-wood products.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6383
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Enzyme expression in indica and japonica rice cultivars under saline stress - doi: 10.4025/actascibiolsci.v34i4.8535 Biological Sciences
Lima, Maria da Graça de Souza; Universidade Federal de Pelotas; Lopes, Nei Fernandes; Universidade Federal de Pelotas; Zimmer, Paulo Dejalma; Universidade Federal de Pelotas; Meneghello, Geri Eduardo; Universidade Federal de Pelotas; Mendes, Cristina Rodrigues; Universidade Federal de Pelotas; Amarante, Luciano do; Universidade Federal de Pelotas.
The southern State of Rio Grande do Sul (RS) is the main rice producer in Brazil with a 60% participation of the national production and 86% participation of the region. Rice culture irrigation system is done by flooding, which leads to soil salinization, a major environmental constraint to production since it alters the plants’ metabolism exposed to this type of stress. The indica cultivar, widely used in RS, has a higher sensitivity to salinity when compared to that of the japonica cultivar in other physiological aspects. Current research analyzes enzymes expression involved in salt-subjected indica and japonica rice cultivars’ respiration. Oryza sativa L. spp. japonica S.Kato (BRS Bojuru, IAS 12-9 Formosa and Goyakuman) and Oryza sativa L. spp. indica...
Palavras-chave: 2.00.00.00-6; 2.03.03.00-9; 2.08.00.00-2 electrophoresis; Isoenzyme; Krebs cycle; O. sativa L.; Salinity Fisiologia Vegetal.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8535
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Evaluation of quantitative parameters of Leydig cell in diabetic adults rats Biological Sciences
Silva, Alluanan Adelson do Nascimento; Oliveira, Jessica Santana de; Oliveira, Rodrigo Ribeiro de; Moraes, Sílvia Regina Arruda de; Silva Júnior, Valdemiro Amaro da; Melo, Elizabeth Neves de.
The goal of present study was to evaluate the effects of diabetes on quantitative parameters of Leydig cells. Twelve adults Wistar rats were divided in: 1) Diabetic Group (DG), which was induced by a single intraperitoneal injection of streptozotocin (60 mg kg-1 of body weight); and 2) Control Group (CG), which received citrate buffer intraperitoneal. After eight weeks of diabetic induction, the animals were weighted, anesthetized and testicles were removed and routinely processed to paraffin embedded. Body weight (40%) and testicular weight (18%) of diabetic rats were significantly lower than control group.  Diabetic rats showed an increase in interstitial compartment but the tubular compartment did not differ. The individual volume of Leydig cells and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.00.00.00-6; 2.06.00.00-3 streptozotocin; Testes; Interstitial cells; Morphometry Morfofisiologia Animal.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/22455
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Evaluation of the genotoxicity of zinc oxide-eugenol cement to Allium cepa L. - doi: 10.4025/actascibiolsci.v35i4.17925 Biological Sciences
Rezende, Elisângela de Fátima; Centro Universitário de Lavras; Mendes-Costa, Maria Cristina; Centro Universitário de Lavras; Fonseca, Johnson Campideli; Centro Universitário de Lavras; Ribeiro, Alex Oliveira; Centro Universitário de Lavras.
Evaluation of the Genotoxicity of Zinc Oxide-Eugenol Cement in Allium cepa L. Dental materials can induce local and systemic effects. The Allium cepa assay was used to evaluate the genotoxicity and/or cytotoxicity of zinc oxide and eugenol (ZOE) at different proportions. The ZOE solution was tested at the concentration of 1 drop of eugenol (in each drop of liquid, the approximate concentration of eugenol is 85%) and 1 portion of zinc oxide cement (treatment I), and twice the concentration of eugenol (treatment II). Treated roots appeared to be yellowish-brown, fewer in number, thicker and less turgid compared with the control, suggesting a cytotoxic activity of ZOE. A significant difference was found in the root size between the control and treatment II....
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.00.00.00-6; 2.02.00.00-5; 2.02.06.00-3 cytotoxicity; Micronucleus (MN); Dental materials; Mutagenesis Genética.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/17925
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In vitro germination, callus induction and phenolic compounds contents from Pyrostegia venusta (Ker Gawl.) Miers Biological Sciences
Braga, Karina de Queiroz; Coimbra, Mairon César; Castro, Ana Hortência Fonsêca.
A protocol for the in vitro germination and callus induction in Pyrostegia venusta, a medicinal plant species from the Brazilian savannah (Cerrado) is provided. The establishment of cultures of P. venusta was originally obtained from seeds germinated in vitro and induced callus directly from leaf explants of seedlings. Seeds were germinated on MS and WPM media containing 100 and 50% of salt concentration, supplemented with 30 g L-1 sucrose. Callus induction consisted of the inoculation of leaf segments on MS medium plus 2,4-D or BAP in the presence or absence of light. The germination percentage averaged 85% and the aerial parts and roots of seedlings obtained in WPM with 50 and 100% of salt concentration showed elevated contents of total phenolic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.00.00.00-6; 2.03.00.00-0 seeds; Auxin; Cytokinin; Medicinal plant; Flavonoids 2.03.03.00-9.
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/26067
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Medium-sized mammals in peri-urban environments in southern Brazil Biological Sciences
Tedesco, Carla Denise; Silva, Douglas Machado da; Zanella, Noeli.
Anthropic effects on natural environments caused by urban expansion or agriculture have been identified as one of the causes for the decline in species richness. In southern Brazil, the urbanization process affects the local fauna and reduces the diversity of mammalian species. This study was conducted from 2012 to 2015 with the objective of gathering information on mammalian species in a peri-urban area. Data was collected four consecutive days each month for 42 months using sand plots and visual searches. Occasional encounters and camera traps complemented were used to complement the data. We recorded 15 mammal species belonging to 10 families. The species with the highest abundance, taking into account all the applied methods, were Didelphis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.00.00.00-6; 2.04.00.00-4; 2.04.06.01-0 Atlantic Forest; Endangered species; Inventory; Fragmentation; Mammalian fauna. Zoologia.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/37562
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Molecular heterogeneity of Malassezia pachydermatis through RAPD-PCR - doi: 10.4025/actascibiolsci.v32i2.4788 Biological Sciences
Nascente, Patrícia da Silva; Universidade Federal de pelotas; Coimbra, Helen Silveira; Universidade Federal de Pelotas; Meinerz, Ana Raquel Mano; Universidade Federal de Pelotas; Meireles, Mário Carlos Araújo; Universidade Federal de Pelotas; Mello, João Roberto Braga; Universidade Federal do Rio Grande do Sul; Schuch, Luiz Filipe Damé; Universidade Federal de Pelotas.
Several methodologies in molecular biology have been used in the investigation of Malassezia pachydermatis and its differentiation into subtypes. Recent molecular research of this species includes the use of samples isolated from canine otitis externa and dermatitis, as well as from healthy animals, having in view an epidemiological study of the yeast. The aim of this study was to identify molecular differences in M. pachydermatis samples isolated from dogs with otitis externa. The M. pachydermatis strains were analyzed by means of the Random Amplification Primer DNA - Polimerase Chain Reaction (RAPD–PCR) for molecular heterogeneity research. DNA extraction was carried out with phenol-chloroform and the RAPD technique using the AGAATCCGCC primer. A...
Tipo: Estudo molecular Palavras-chave: 2.00.00.00-6; 2.08.04.00-8; 2.12.00.00-9; 2.12.01.03-0 Malassezia pachydermatis; Molecular biology; Otitis externa; Dogs Ciências Biológicas; Biologia Molecular; Microbiologia; Micologia Malassezia pachydermatis; Molecular biology; Otitis externa; Dogs.
Ano: 2010 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4788
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Molecular markers in studies on fish parasites (Platyhelminthes): Review Biological Sciences
Graça, Rodrigo Junio da; Fabrin, Thomaz Mansini Carrenho; Gasques, Luciano Seraphim; Prioli, Sônia Maria Alves Pinto; Prioli, Alberto José; Takemoto, Ricardo Massato.
Studies with molecular markers are currently more common for all groups of living organisms. Molecular techniques used in Platyhelminthes parasites of fishes do not merely reveal complex life cycles, but are important for species distinction and the elucidation of the phylogenetic hypothesis. Current research verified which molecular markers were mainly used phylogenetic studies on Platyhelminthes parasites of fish so that subsidies for further phylogenetic studies in Icthyoparasitology could be provided. Data base of CAPES Journals platform was employed for bibliometric analysis comprising the keywords “fish” and “phylogeny” associated with “Cestoda”, “Digenea” or “Monogenea”. Information retrieved was quantified and tabulated. Most studies were on...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.00.00.00-6; 2.13.02.00-6; 2.13.02.02-2 Digenea; Cestoda; Monogenea; Ribosomal DNA; COI Biologia Molecular.
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29499
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Periphytic algal community in artificial and natural substratum in a tributary of the Rosana reservoir (Corvo Stream, Paraná State, Brazil) - doi: 10.4025/actascibiolsci.v32i4.4627 Biological Sciences
Felisberto, Sirlene Aparecida; Universidade Federal de Goiás; Rodrigues, Liliana; Universidade Estadual de Maringá.
Periphytic algal community in artificial and natural substratum in a tributary of the Rosana reservoir (Corvo Stream, Paraná State, Brazil). This study evaluated the heterogeneity in periphytic algal community, under the influence of time colonization on artificial substratum. We also examined which abiotic variables most influenced the community in natural and artificial substratum. Egeria najas Planchon was used as natural substratum, and a plastic plant, as artificial. This experiment was carried out in a lateral arm from Rosana Reservoir, formed by Corvo Stream (Paranapanema river basin), in the period from November 21st to December 12nd, 2003, characterized as a warm and rainy period. Changes in species composition were assessed using the similarity...
Palavras-chave: 2.00.00.00-6; 2.05.02.00-1 Ecology; Colonization; Phycoperiphyton; Zygnemaphyceae; Similarity Ecologia Ecology; Colonization; Phycoperiphyton; Zygnemaphyceae; Similarity.
Ano: 2010 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4627
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Prediction of mutations on structure primase of the archaeon Sulfolobus solfataricus Biological Sciences
Souza, Eden Silva e; Diniz, Michely Correia.
 All living organisms need a DNA replication mechanism and it has been conserved in the three domains of life throughout evolutionary process. Primase is the enzyme responsible for synthesizing de novo RNA primers in DNA replication. Archaeo-Eukaryotic Primase (AEP) is the superfamily that typically forms a heterodimeric complex containing both a small catalytic subunit (PriS) and a large accessory noncatalytic subunit (PriL). Sulfolobus solfataricus is a model organism for research on the Genetics field. The aim of this work was to evaluate, via Bioinformatics tools, three mutations in the large subunit (PriL) of the archaeon Sulfolobus solfataricus. The aspartic acid residue in the positions (Asp) 62, (Asp) 235, (Asp) 241 have been substituted by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.00.00.00-6; 2.02.02.00-8 in silico; PriL; 3D structure; DNA replication; Primer; Mutations. Genética Molecular e de Microorganismos.
Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/34600
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Quantification of argyrophillic, argentaffin and insulin immunoreactive cells in the small intestine in the opossum Didelphis aurita (Wied-Neuwied, 1826) - doi: 10.4025/actascibiolsci.v33i4.8644 Biological Sciences
Ribeiro, Gláucia Marques Freitas; UFV; Fonseca, Cláudio César; Universidade Federal de Viçosa; Rodrigues, Sirlene Souza; Universidade Federal de Viçosa; Matta, Sérgio Luis Pinto da; Universidade Federal de Viçosa; Neves, Clovis Andrade; Universidade Federal de Viçosa.
The objective of this study was to quantify argyrophillic, argentaffin and insulin immunoreactive endocrine cells in the different segments of the small intestine of Didelphis aurita and measure probable differences in the number of these cells between adult and post-pubertal animals. Biological material consisted of ten male and female opossums specimen, divided in two groups according to weigh. The utilized staining techniques were Grimelius, modified Masson-Fontana and direct immunoperoxidase. Results indicated a predominance of argyrophillic cells in the small intestine of opossums from class 1 and 2, with an average of 52.58 and 56.15 cells mm-2, respectively; of which, the average number of total endocrine cells, argyrophillic and argentaffin cells...
Palavras-chave: 2.00.00.00-6; 2.06.01.00-0 digestive tract; Endocrine cells; Immunoreactive cells; Mammal; Marsupial Citologia e Biologia Celular digestive tract; Endocrine cells; Immunoreactive cells; Mammal; Marsupial.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8644
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