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| Registros recuperados: 1.256 | |
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| Abbade, Leticia Caravita; UFLA; Paiva, Patrícia Duarte de Oliveira; UFLA; Paiva, Renato; UFLA; Castro, Evaristo Mauro de; UFLA; Centofante, Agda Rabelo; UFLA; Oliveira, Cynthia de; UFLA. |
| Este estudo teve como objetivo comparar a estrutura interna de folhas de ipê-branco cultivadas in vitro e ex vitro. Para as avaliações anatômicas foram utilizadas folhas do primeiro nó de ramos, da base para o ápice, com 30 dias de cultivo in vitro e de plantas de campo. O estudo anatômico foi feito por meio das secções transversais e paradérmicas das folhas. As folhas apresentam epiderme uniestratificada e mesofilo dorsiventral. São hipostomáticas e apresentam tricomas em todas as faces. Folhas de plantas cultivadas ex vitro, quando comparadas com in vitro, tiveram espessura do limbo foliar, nervura central da epiderme adaxial e abaxial e os parênquimas paliçádico e esponjoso maiores. Em folhas oriundas do cultivo in vitro, a cutícula e o esclerênquima... |
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Palavras-chave: 2.00.00.00-6 Ciências Biológicas anatomia; Folhas; Estômatos; Nervura central; In vitro; Ex vitro Anatomia vegetal anatomy; Leaves; Stomata; Central nervure; In vitro; Ex vitro. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1937 |
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| Hirano, Líria Queiroz Luz; UFU; Santos, André Luiz Quagliatto; UFU; Pereira, Patrícia Calixto; UFU; Silva, Juliana Macedo Magnino; UFU; Kaminishi, Árthur Paulino Sanzo; UFU; Ferreira, Carlos Gomes; UFU. |
| Este trabalho foi desenvolvido com o intuito de enriquecer o conhecimento sobre a morfologia vascular das artérias renais e gonadais de Podocnemis unifilis, facilitando o entendimento da fisiologia clínica e cirúrgica destes animais. Foram utilizados cinco exemplares machos de Podocnemis unifilis (tracajá), coletados segundo a Licença nº 066/2004-Ibama/RAM. A artéria carótida esquerda e a veia femoral direita foram canuladas e, pelas mesmas, foi introduzida solução fisiológica para lavagem do sistema vascular; em seguida, aplicou-se solução de Neoprene Látex “450” corada com pigmento específico (Globo S/A Tintas e Pigmentos). O material foi fixado em solução de Formol tamponado a 10% por um período mínimo de 96h. Uma abertura central e de formato... |
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Palavras-chave: 2.00.00.00-6 Ciências Biológicas morfologia vascular; Sistema circulatório; Quilônios Anatomia Animal vascular morphology; Blood sytem; Turtles. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/680 |
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| Shibata, Marília; Coelho, Cileide Maria Medeiros; Schmidt, Eder Carlos; Bouzon, Zenilda Laurita; Campos, José Marcello Salabert de; Maraschin, Marcelo. |
| This study aimed at assessing the cell cycle, and anatomical and biochemical changes that the embryonic axis of Araucaria angustifolia undergoes during development, focusing on the maturation stage. During all development, cells exhibited intense metabolic activity with an abundance of mitochondria, lipid bodies, and vacuolated cells. The continued accumulation of starch and protein was observed by LM and TEM and indicated by spectra of FTIR. Cell differentiation of the procambium was observed with a thickening of the cell wall and the formation of resiniferous ducts. At Stage III and IV, cells exhibited structural changes such as altered or elongated mitochondria and presence of plastoglobules. These results suggest that there is a gradual transition from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.03.00.00-0 Botânica; 2.03.03.00-9 Fisiologia Vegetal; 5.02.01.04-2 Sementes Florestais maturation; Recalcitrant seed; Light microscopy; Transmission electron microscopy; Flow cytometry Botânica. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43381 |
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| Pereira, Thiago Scremin Boscolo; Arco, André Del; Hoffmann, Patrícia; Marques, Vanessa Belentani. |
| Descriptive studies of the fish digestive system are fundamental because they provide information on the biology of the species. Thus, the objective of this study was to morphologically describe the digestive system of the pufferfish, Chilomycterus spinosus spinosus. For this, adult specimens of pufferfish (n = 10) of both sexes were used. The animals were fixed with 10% aqueous formaldehyde solution, dissected, analyzed descriptively and photographed. The results demonstrate that the pufferfish has a morphologically modified digestive system, which is adapted to the defense behavior. This species presents a pouch-shaped diverticulum, that is called abdominal pouch, which allows the expansion of the celomatic cavity and the temporary storage of food.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomia comparative anatomy; Digestive tract; Marine teleost; Tetraodontiformes; Morphology.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/44645 |
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| Pereira, Thiago Scremin Boscolo; Faria Júnior, Wilson Henrique. |
| Descriptive anatomical studies of wild animals are fundamental, since they provide subsidies for the elaboration of more adequate techniques of sustained management, contributing to the preservation of species threatened with extinction. Thus, the aim of the study is to anatomically describe the salivary glands: parotid, mandibular and sublingual of the crab-eating-fox (Cerdocyon thous). For this purpose, three carcasses of crab-eating-fox donated by Ibama were used. The animals were fixed with 10% aqueous formaldehyde solution, dissected, analyzed descriptively and photographed. It was found that the parotid gland of the crab-eating-fox is located caudally to the branch of the mandible, in the rostroventral margin of the auricular cartilage. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomia Comparada comparative anatomy; Wild animals; Carnivores; Morphology. Anatomia de animais silvestres. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/37528 |
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| Cabral, Silvia Rosana Pagliarini; UNESP - IBILCE; Santos, Lia Raquel de Souza; UNESP - IBILCE; Franco-Belussi, Lilian; UNESP - IBILCE; Zieri, Rodrigo; UNESP - IBILCE; Zago, Carlos Eduardo Saranz; UNESP - IBILCE; Oliveira, Classius de; UNESP - IBILCE. |
| The reproductive system of male Phrynops geoffroanus adults is macroscopically described and the variation in testicular biometry is evaluated. A pair of oval testes is connected by the efferent ductules to the epididymis, which continue as deferent ducts, which emerge in the penis. The volume of the gonads showed the highest averages during spring and summer months. GSI varied significantly throughout the year, with the highest averages observed in the months that correspond to the end of spring and the beginning of summer, when the reproduction of the species takes place, and the lowest averages were seen in winter, suggesting a cyclical testicular activity. |
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Palavras-chave: 2.04.00.00-4; 2.06.04.02-5 Testudines; Phrynops geoffroanus; Reproductive system; Testes; Epididymis; Efferent ductules; Deferent ducts; Penis Anatomia Animal Testudines; Phrynops geoffroanus; Reproductive system; Testes; Epididymis; Efferent ductules; Deferent ducts; Penis. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8091 |
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| Marques, Angela Maria Marques Sanches; Universidade Estadual de Maringá; Moscheta, Ismar Sebastião; Universidade Estadual de Maringá. |
| The upper Paraná River floodplain is characterized by the existence of several aquatic and transitional habitats between the aquatic and terrestrial environment, influencing the presence and distribution of aquatic macrophytes. Samples were taken from different places and permanent slides were prepared for analysis and capture of images with the objective of comparing the anatomy of the roots of eight species of emergent aquatic macrophytes. The species feature uniseriate epidermis with narrow and long cells, cortex composed of uniseriate or biseriate exodermis, with or without thickening, aerenchyma with great gaps, uniseriate endodermis, with or without thickening, continuous or interrupted pericycle, and central cylinder with variable number of xylem... |
| Tipo: Estudo anatômico |
Palavras-chave: 2.03.00.00-0; 2.03.02.03-7 Aerenchyma; Root; Alismataceae; Cyperaceae; Polygonaceae; Pontederiaceae Anatomia Vegetal Aerenchyma; Root; Alismataceae; Cyperaceae; Polygonaceae; Pontederiaceae. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5509 |
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| Santos, André Luiz Quagliatto; UFU; Hirano, Líria Queiroz Luz; UFU; Pereira, Patrícia Calixto; UFU; Silva, Juliana Macedo Magnino; UFU; Kaminishi, Árthur Paulino Sanzo; Bosso, Andréa Cristina Scarpa; UFU. |
| Os cágados apresentam fisiologia e morfologia únicas, que se diferenciam em muitos aspectos dos mamíferos. Por isso, a monitoração do paciente durante um processo anestésico ou sedativo deve ser realizada, porque dosagens e drogas com resultados benéficos em mamíferos têm-se mostrado inadequados para estas espécies. Foram utilizados dez exemplares de Phrynops geoffroanus, provenientes do rio Uberabinha, no município de Uberlândia, Estado de Minas Gerais (licença RAN/IBAMA nº 035/2006), os quais foram anestesiados com o protocolo midazolan 2 mg kg-1 IM-1 e propofol 10 mg kg-1 IV-1. Os batimentos cardíacos dos exemplares foram monitorados com o aparelho Doppler Vascular Eletrônico nos tempos 0’, 10’, 30’, 60’, 120’ e 180’ pós-anestésico e, durante o período... |
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Palavras-chave: 2.00.00.00-6 Ciências Biológicas anestesia; Phrynops geoffroanus; Midazolan; Propofol Farmacologia anesthesia; Phrynops geoffroanus; Midazolam; Propofol. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/674 |
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| 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,... |
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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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| Canhas, Isabela Nascimento; Heneine, Luiz Guilherme Dias; Fraga, Thaís; Assis, Débora Cristina Sampaio de; Borges, Márcia Helena; Chartone-Souza, Edmar; Nascimento, Andréa Maria Amaral. |
| Toxins and venoms produced by living organisms have exhibited a variety of biological activities against microorganisms. In this study, we tested seven snake venoms from the family Viperidae for antibacterial activity and the activities of reversal of antibiotic resistance and inhibition of biofilm formation against 22 clinical isolates of Staphylococcus aureus. Bothrops moojeni venom exhibited anti staphylococcal activity with the lowest mean value of minimum inhibitory concentration (MIC). Moreover, reversal of antibiotic resistance was observed for combinations of B. moojeni venom (½ x MIC) and norfloxacin or ampicillin (both ½ x MIC) for 86.4% and 50% of the isolates, respectively. B. moojeni venom alone at ½ MIC inhibited 90% of biofilm formation,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bothrops moojeni; Bacteria; Antibiotic-resistance; NorA efflux pump; Biofilm.. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/33826 |
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| Yihune, Endalamaw; Yemata, Getahun. |
| This study was conducted to evaluate the in vitro antibacterial activity of some medicinal plants against Ralstonia solanacearum. Bioactive chemicals were extracted from Burcea antidysenterica, Eucalyptus citriodora, Justicia schimperiana, Lantana camara, Melia azedarach and Ricinus communis leaves using maceration method. The bioassay was evaluated by disc diffusion method. The pathogen was isolated from infected Capsicum annuum plants using Casamino acid-Peptone-Glucose agar (CPG) medium. The isolate was identified using cultural, biochemical characteristics, pathogenicity test and found to be R. solanacearum. The methanol extracts had different composition, percentage extract yield, antibacterial activity and relative percentage inhibition. Unlike... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biotechnology botany microbial crude extract; Eucalyptus citriodora (Hook); Inhibition zone phytochemicals; Ricinus communis L. Biotechnology Microbial. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/45402 |
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| Silva, Giselle Cristina; Soares, Raquel Cavalcante; Carvalho, Fátima Cristiane Teles; Rocha, Rafael dos Santos; Vieira, Regine Helena Silva dos Fernandes; Sousa, Oscarina Viana de. |
| Some infections caused by pathogenic microorganisms might shows high prevalence in farmed shrimp environments, compromising production and causing economic losses. Therefore, the search for compounds with antibiotic activity has become intensive, following the record of new antimicrobial-resistant bacteria. The study of those bioactive compounds in marine macroalgae has produced satisfactory results, such as the discovery of antibacterial activity against multiresistant strains. Accordingly, this study aims to research antibiotic activity in macroalgae extracts of Chlorophyta, Phaeophyta and Rhodophyta found in the coast of Ceará and also to evaluate the cytotoxicity activity against bacterial strains (Vibrio sp.) from shrimp farms (Litopenaeus vannamei).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.12.02.00-1 bioactivity; Antibiotic; Cytotoxicity; Resistance. Microbiologia Aplicada. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/40053 |
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| Messaoudi, Mohammed; Benreguieg, Mokhtar; Merah, Maroua; Messaoudi, Zakarya Ayoub. |
| Despite the presence of many antibiotics, bacterial resistance is growing steadily and some of these antibiotics have become ineffective, which poses a major challenge to the health sector. In this context, this work has demonstrated, in vitro, the inhibitory action of the bacterial growth resulting from methanolic and ethanolic extracts of Thymus algeriensis Boiss. & Reut., a medicinal plant species harvested from the Algerian South-west area, as well as the determination of the phenolic content of those crude extracts. The methanolic extract of Thymus algeriensis showed a significant antibacterial effect with 16.5 and 19 mm against Pseudomonas aeruginosa and Staphylococcus aureus, respectively. Klebsiella pneumoniae was not inhibited by both... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibacterial effect; Extracts; Medicinal plant; Phenolic content; Thymus algeriensis.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/48548 |
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| Lima-Neto, Abelardo Barbosa Moreira; Marques, Márcia Maria Mendes; Mendes, Francisca Noélia Pereira; Vieira, Ícaro Gusmão Pinto; Diniz, Derlange Belizário; Guedes, Maria Izabel Florindo. |
| The objective of this study was to determine the proximal composition, the physical and chemical characteristics and the in vitro antioxidant capacity (DPPH, ABTS and FRAP) of the pulp of the wild passion fruit (Passiflora glandulosa Cav.) from Cariri region, Ceara, Brazil. The results showed that the proximal composition and the caloric value of this passion fruit are similar to other species, but with a high ascorbic acid content. The fruit pulp showed low level of antioxidant activity and low level of polyphenolic compounds followed by three methodologies used. Due to high levels of titratable acidity (3.52) and total soluble solids (17.80° Brix), this fruit can be considered as a high value fruit for commerce. However,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.03.00.00-0; 5.07.00.00-6 functional food; Agricultural; Dietary fiber; Phenolics; Natural antioxidants. Botânica. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/34045 |
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| Ribeiro, Vandjore de Mattos; Spiassi, Ariane; Marcon, Thaís Regina; Lima, Gislaine Piccolo de; Corsato, Jaqueline Malagutti; Fortes, Andréa Maria Teixeira. |
| This study aimed to analyze oxidative stress produced in cucumber seeds and seedlings when exposed to aqueous extract from dried leaves of leucaena, as well as its effect on the germination behavior, early growth and the antioxidant enzymes activity. It was evaluated the percentage, the speed index, the average time, the frequency and germination synchronization, the root length and shoot, as well as the catalase and peroxidase enzymes activity. There was no significant inhibitory effect of the leaf extracts on the germination percentage. However, there was delay in the seeds germination, as the extract proportion increased. A stimulatory effect of the extract compared to the shoot length was observed, however the root growth was significantly reduced.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Botânica allelopathy; Reactive oxygen species; Antioxidant enzymes. Fisiologia Vegetal. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/34801 |
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| Medri, Vandir; UEL; Pereira, Geni Varéa; UEL; Leonhardt, Júlio Hermann; UEL. |
| Foram utilizados 240 alevinos de tilápia do Nilo (Oreochromis niloticus), com 45 dias, sexualmente revertidos, com peso médio inicial de 1,25 ± 0,14 g alocados em tanques-rede. Foi avaliado o efeito da substituição de 10%, 20% e 30% de ração por levedura de destilaria sobre a função-perda de Taguchi. Os resultados médios obtidos nos parâmetros limnológicos para o controle da qualidade da água, através da análise química, foram normais. As perdas de Taguchi para a produção total, para os peixes mortos e descartados não revelaram uma correlação para os diferentes níveis de inclusão de levedura alcooleira, indicando que a escolha do nível de levedura na ração, para esses peixes, depende da sua disponibilidade e custo ocasional. |
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Palavras-chave: 2.00.00.00-6 Ciências Biológicas levedura; Qualidade; Ração; Taguchi; Tanque-rede; Tilápia 2.00.00.00-6 Ciências Biológicas. |
| Ano: 1999 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4439 |
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| Registros recuperados: 1.256 | |
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