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| Registros recuperados: 2.860 | |
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| Bozari,Sedat. |
| ABSTRACT It is known that, there are many ways for increasing the yield at the crops specially cereal products. Genetic manipulations and physiological interventions are the primary studies that aim to obtain products at high quality and amounts. It is known that, the usage of synthetic chemicals for physiological inverventions negatively affects organism. But using natural plant products instead of these chemicals is a subject that draws attention of today scientific environment. In this study, this situation was taken into consideration and the essential oil obtained from Satureja hortensis (SEO) plant were applied to bean seeds. The genotoxic and physiological effects of SEO at four different dosages were detected against to Phaseolus vulgaris... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant Enzymes; Biyopesticide; Essential Oil; GTS. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100431 |
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| Thomaz-Soccol,Vanete; Souza,Felipe Pohl de; Sotomaior,Cristina; Castro,Edilene Alcântara; Milczewski,Viviane; Mocelin,Giovani; Silva,Maria do Carmo Pessoa e. |
| The fecal egg count reduction test (FECRT) was used in a survey for anthelmintic resistance in 42 sheep farms, in five different regions in Paraná State, Brazil between July 1996 - July 2000. Animals with natural infection were tested. Five drugs were used individually or in combination - benzimidazole, imidazothiazole, ivermectin, milbemicina and closantel. Results showed that the prevalence of resistance to all anthelmintic was as high as 88.1% for benzimidazoles (oxfendazole), 78.6% for ivermectin, 56.4% for closantel, 38.7% for closantel + oxfendazole, 38% for levamisole, and 23.6% for moxidectin. There was multiple resistance in all tested farms. The most important infective larvae recovered from culture were Haemonchus contortus and Trichostrongylus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gastrointestinal parasite; Sheep nematode; Ovis aries; Anthelmintic resistance; FECRT. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000100006 |
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| Urbanetz Junior,Jair; Tonin,Fabianna Stumpf; Mariano,Juliana D’Angela; Tiepolo,Gerson Máximo. |
| ABSTRACT The Federal University of Technology - Paraná (UTFPR), Campus Curitiba, has a Grid-Connected Photovoltaic System (GCPVS) of 2.1 kWp in the Green Office (GO), which has been in operation since December 2011, and until September 2017 generated little more than 13.64 MWh and a GCPVS of 10.2 kWp, in operation since February 2016. The photovoltaic panel of the 2.1 kWp system was set up following the inclination of the roof of the building, which does not give its maximum performance. On the other hand, the panel of the 10.2 kWp system in Neoville was installed in optimum conditions, that is, oriented to the north and with slope equal to the latitude of Curitiba and, up tol September 2017 generated more than 20.65 MWh. This paper presents the monitoring... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solar energy; Distribuited generation; Grid-connected photovoltaic system. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000200237 |
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| Benkeblia,Noureddine. |
| The radical scavenging activity (RAS), chain-breaking activity, H2O2-scavenging, reducing capacity and total phenolics of four types of onions (Green onion, Yellow, Red and Purple) and garlic were investigated. Total phenolics varied from 30 mg (green onion) to 49 mg.100 g-1 fresh weight (garlic). Garlic extract showed the highest RAS, while green onion showed the lowest one. The chain-breaking activity of green onion extract was higher (0.48) than garlic extract (0.029). Chain-breaking activity of yellow, red and purple onion extracts was 0.19, 0.048 and 0.032 respectively. However, heating treatment (90 ºC, 3h) caused an increase in this activity. Low ability of green onion extract to scavenge hydrogen peroxide was noted (35%), whereas high ability was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Radical scavenging activity; Chain-breaking activity; H2O2-scavenging; Reducing capacity; Allium cepa; Allium sativum. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000600011 |
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| Goulart,Yara Cavalcante Fortes; Sela,Vania Ramos; Obici,Simoni; Martins,Juliana Vanessa Colombo; Otobone,Fernanda; Cortez,Diogenes Aparicio; Audi,Elisabeth Aparecida. |
| The antiulcer activity of a hydro-ethanolic extract prepared from the stems of Kielmeyera coriacea Mart. (Guttiferae) was evaluated in rats employing the ethanol-acid, acute stress and Indomethacin models to induce experimental gastric ulcers. Treatment with K coriacea hydro-ethanolic extract provided significant antiulcer protection in the ethanol-acid and Indomethacin models, but not in the acute stress model. These results suggested that the K coriacea hydro-ethanolic extract increased resistance to necrotizing agents, providing a direct, protective effect on the gastric mucosa. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acute stress; Anti-ulcer activity; Ethanol-acid; Indomethacin; Kielmeyera coriacea Mart. (Guttiferae). |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000200007 |
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| Ono,Elisabete Yurie Sataque; Fungaro,Maria Helena Pelegrinelli; Sofia,Silvia Helena; Miguel,Tatiana de Ávila; Sugiura,Yoshitsugu; Hirooka,Elisa Yoko. |
| In this study a total of 16 Fusarium verticillioides strains isolated from corn feed samples were characterized by fumonisin (FB) production and random amplified polymorphic DNA (RAPD). All the strains produced FB1 and FB2 with levels ranging from 2.41 to 3996.36 µg/g, and from 1.18 to 1209.91 µg/g, respectively. From the 16 F. verticillioides strains, four were identified as low (3.59 to 1289.84 µg/g), eight as intermediate (>1289.84 to 3772.44 µg/g) and four strains as high (>3772.44 µg/g) fumonisin producers. From the total of 105 loci amplified, 60 (57.14%) were polymorphic. RAPD analysis showed very similar patterns among low, moderate and high fumonisin-producing strains. Although RAPD markers were capable of discriminating the different F.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fumonisin; Fusarium verticillioides; Genetic variability; RAPD. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000400026 |
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| Wasielesky Jr.,Wilson; Bianchini,Adalto; Castaño Sanchez,Cecilia.; Poersch,Luis Henrique. |
| Studies were carried out to investigate the effect of temperature, salinity, ammonia, nitrite and nitrate on food consumption of pink shrimp Farfantepenaeus paulensis. Juveniles (0.2 - 0.4 g) were acclimated for 15 days in seawater with different temperatures, salinities and concentrations of ammonia, nitrite and nitrate. After the acclimation period, 20 shrimps per treatment were individualized in order to have their ration intake analyzed through the amount of ration offered and left over within a 24-hour period. Mean food consumption presented significant alterations (P<0.05) for the tested temperatures and nitrite concentrations, whereas for the salinity, ammonia and nitrate treatments, shrimp presented no alteration on food intake (P>0.05).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Culture; Food consumption; Shrimp; Water quality. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000100019 |
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| Sarmento,Renato Almeida; Pallini,Angelo; Venzon,Madelaine; Souza,Og Francisco Fonseca de; Molina-Rugama,Adrián José; Oliveira,Claudinei Lima de. |
| This work evaluated the functional response of adult females of Eriopis connexa to different densities of Macrosiphum euphorbiae and Tetranychus evansi. When preying upon aphids, E. connexa presented a sigmoidal functional response (Type III). This behavior, however, changed drastically to an exponential (Type II) functional response, when mites (T. evansi), rather than aphids, were offered to E. connexa. Such different patterns showed that this coccinellid needed to adopt distinct strategies according to the kind of prey available. Since predators were believed to be able to regulate prey populations only when adopting Type III functional response. E. connexa would be a good candidate for a biological control agent of M. euphorbiae, but would not suppress... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Coccinellids; Aphids; Mites; Lycopersicon esculentum Mill. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000100014 |
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| Guo,Lina. |
| ABSTRACT Olfactory receptors are essential for recognition and detection of odor in honeybees. Although we have cloned and characterized the sequence of olfactory receptor AcerOr1 before, the tissue distribution and location of this gene in the nurse and the forager worker Apis cerana cerana were not very clear. To further investigate this information of AcerOr1 gene, we analyzed its expression and localization. The results showed that AcerOr1 mRNA was predominantly expressed in the antennae of nurse and forager bees, while the AcerOr1 protein was predominant in thorax, and its expression in antennae was higher in forager than in nurse. IHC revealed that AcerOr1 mainly localized in the olfactory neurons of the antennae. In addition, the staining intensity... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apis cerana cerana; Olfactory receptor; AcerOr1; Expression; Localization; In vivo. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100440 |
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| Souza,Silvia Graciele Hülse de; Carpentieri-Pípolo,Valéria; Ruas,Claudete de Fátima; Carvalho,Valdemar de Paula; Ruas,Paulo Maurício; Gerage,Antônio Carlos. |
| The RAPD and SSR markers were used to compare the genetic diversity among the 16 maize inbred lines. Twenty-two primers were used in the RAPD reactions, resulting in the amplification of 265 fragments, while 16 pairs of SSR primers resulted in 75 fragments. The similarity based on Dice coefficient for the RAPD ranged from 53 to 84% and for the SSR from 11 to 82%. The dendrogram obtained by the RAPD showed five groups, while dendrogram obtained by the SSR showed three groups and one isolated line. The association constructed from the markers and the principal coordinates analysis separated lines into two groups according to endosperm color, either orange or yellow. The RAPD were effective to validate pedigree data, while the SSR were effective to recognize... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Corn; Distance genetic; Microsatellites; Molecular markers; Polymorphism; RAPD. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100022 |
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| Benassi,Guilherme; Correa,Guilherme Augusto Simões Francischini; Kluge,Ricardo Alfredo; Jacomino,Angelo Pedro. |
| Custard apple (Annona squamosa L.) presents very short storage life at room temperature, in part due to heavy losses in firmness. This process is associated with the production and action of the hormone ethylene. In order to retard the ripening evolution in custard apple, fruits were treated with the competitive ethylene antagonist 1-methycyclopropene (1-MCP) at concentrations of 0, 30, 90, 270 or 810 nL L-1 for 12 h at 25ºC and then stored at 25ºC for four days. The soluble solids content (SSC), firmness and percentage of ripe fruits (firmness < 0.5kg) were determined during the experimental period. There were no differences among treatments as to the SSC. Fruits treated with 810 nL L-1 of 1-MCP showed higher firmness than the control fruits. Both ,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ripening; Storage; Firmness; Annona squamosa. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000100016 |
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| Wang,Yong; Huang,Wenhua; Peng,Daizhi; Hu,Yuanbin. |
| In this work, several major procedures of the electrophoretic mobility shift assay (EMSA) were modified including swift extraction of the nucleic protein, labeling of the probe and radioautography. The modified assay required shorter time, simplified the nucleic protein extraction, increased the radioactivity of the labeling probe, skipped the tedious process of gel drying, and produced clear images. Its results were comparable, reproducible and stable. It thus has merited for wide application. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nuclear transcription factor; Electrophoretic mobility shift assay; Methodology; Modification. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000400025 |
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| Registros recuperados: 2.860 | |
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