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| Registros recuperados: 919 | |
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| Linard, Clementine; Gueguen, Yannick; Moriceau, Jacques; Soyez, Claude; Hui, Belinda; Raoux, Aurore; Cuif, Jean Pierre; Cochard, Jean-claude; Le Pennec, Marcel; Le Moullac, Gilles. |
| Marine mollusc shell growth has been widely measured using fluorochrome marking. In order to test the efficiency and reliability of calcein staining on P. margaritifera shells and pearls, the present study examined two administration methods, different concentrations and several immersion times.Immersion in a 150 mg.L-1 calcein solution for 12 h to 24 h appeared to be the best method for marking P. margaritifera shells. For pearl marking, injection of a 200 mg.L-1 calcein solution into the pearl pouch was the optimal method. Calcein marking was then used to measure the influence of food resource levels on the shell growth. Groups of 23-month-old P. margaritifera were fed at three trophic levels for two months. The two highest food levels tested (6 000... |
| Tipo: Text |
Palavras-chave: Bivalvia; Pearl; Shell; Growth; Scanning electron microscope. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00028/13907/11195.pdf |
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| Gu,X.-D.; Xu,L.-L; Zhao,H.; Gu,J.-Z; Xie,X.-H. |
| As an active constituent of the beetle Mylabris used in traditional Chinese medicine, cantharidin is a potent and selective inhibitor of protein phosphatase 2A (PP2A) that plays a crucial role in cell cycle progression, apoptosis, and cell fate. The role and possible mechanisms exerted by cantharidin in cell growth and metastasis of breast cancer were investigated in this study. Cantharidin was found to inhibit cell viability and clonogenic potential in a time- and dose-dependent manner. Cell cycle analysis revealed that cell percentage in G2/M phase decreased, whereas cells in S and G1 phases progressively accumulated with the increasing doses of cantharidin treatment. In a xenograft model of breast cancer, cantharidin inhibited tumor growth in a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cantharidin; Breast cancer; ERK/MAPK pathway; Growth; Migration; Invasion. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000700608 |
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| Prudence, Marie. |
| Two amylase genes, A and B, from the oyster Crassostrea gigas were characterized. Using PCR-RFLP, 6 and 4 alleles, respectively, were described for the amylase genes A and B. The roles of A and B amylase genes were investigated experimentally. They are expressed during larval and adult stages, and A transcripts are more abundant than B. The A transcript increases significantly with temperature, in high trophic conditions. However, A and B transcript levels do not change when food quantity increases although amylase activity augments. The level of B is correlated with dietary starch quantities, whereas the amount of A appears to remain constant ; simultaneously amylase activity decreases and the KM increases. These results suggest that expression of B is... |
| Tipo: Text |
Palavras-chave: Enzymatic analyse; Genetic polymorphism; Genes; Nutrition; Growth; Environmental effects; Oysters; Amylases; Amylases; Analyse enzymatique; Polymorphisme génétique; Gènes; Nutrition; Croissance; Effets de l'environnement; Huîtres; Amylases; Amylases. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/these-1700.pdf |
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| Watzlawick, Luciano Farinha; Longhi, Solon Jonas; Schneider, Paulo Renato; Finger, César Augusto Guimarães; Longhi, Regis Villanova. |
| O objetivo foi caracterizar a florística, estrutura fitossociológica e dinâmica em Savana Estépica Parque no Parque Estadual do Espinilho, Barra do Quaraí, RS. Em unidade amostral permanente de 1 ha, foram identificados e medidos os indivíduos com diâmetro à altura do peito (DAP) ≥ 10 cm. A florística constitui-se de Prosopis affinis, Prosopis nigra, Acacia caven e Scutia buxiflora, possuindo densidade de 141 e 145 indivíduos por hectare nos anos de 2001 e 2009. O incremento médio anual foi de 0,027 cm ha-1 ano-1, com taxas de ingresso e mortalidade de 0,36% ao ano. Pode-se concluir que a vegetação encontra-se estagnada.doi: 10.4336/2010.pfb.30.64.363 |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Parque do Espinilho; Prosopis; Growth; Phytosociology Parque do espinilho; Prosopis; Crescimento; Fitossociologia.. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/107 |
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| Estrada Nolasco, Celia. |
| Se estudiaron parámetros fisiológicos y de rendimiento de cuatro distintas variedades de fresa (Fragaria x anannassa Duch.), dos variedades mexicanas CP Zamorana (CP 02-01) y CP Jacona (CP 02-04) y dos variedades comerciales extranjeras (Festival y Giant). La evaluación se llevó a cabo en el periodo de otoño 2009. Se midieron variables de crecimiento, de producción y variables fisiológicas El comportamiento de la transpiración (TT), conductancia estomática (CE) y la tasa de fotosíntesis neta (TF) varió durante el periodo de cosecha. Las variedades Zamorana y Jacona presentaron las mayores TF en comparación a las variedades introducidas. Así, las TF fueron mayores para la variedad Jacona, seguida de Zamorana, Festival y Giant. Las diferencias en TF entre... |
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Palavras-chave: Intercambio de gases; Crecimiento; Producción; Rendimiento; Fragaria x ananassa; Gas exchange; Growth; Yield; Strawberry; Maestría; Fruticultura. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/391 |
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| Moura,Emanoel Gomes de; Coelho,Kátia Pereira; Freitas,Idelfonso Colares de; Aguiar,Alana das Chagas Ferreira. |
| In the humid tropic, chemical and physical soil properties that decrease soil's nutrient availability and increase oxygen deficiency are important as restrictions to crop growth. The objective of this study was to evaluate the relations between plant growth and chemical and physical fertility indicators of an Ultisol developed from sediments of the Itapecuru Formation in Central-Northern state of Maranhão, Brazil. An experiment was established with randomized block design, four replicates, and six treatments: 6.0 Mg ha-1 mulch with or without liming; 3.0 Mg ha-1 mulch with or without liming; bare soil with or without liming. Determinations in the plants included leaf area index, net assimilation rate, and the yield parameters: mean number and weight of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L.; Growth; Yield; Effective porosity. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000600012 |
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| Silva,Edilane Aparecida da; Silva,Wilson Jesus da; Barreto,Antônio Carlos; Oliveira Junior,Antonio Barbosa de; Paes,José Mauro Valente; Ruas,José Reinaldo Mendes; Queiroz,Domingos Sávio. |
| The present study aimed to estimate the photosynthetically active radiation of tropical forage grasses in ten cutting dates, under irrigation. The following treatments were used: Brachiaria decumbens grass (Brachiaria decumbens cultivar Basilisk), Marandu grass (Brachiaria brizantha cultivar Marandu), Xaraes grass (Brachiaria brizantha, cultivar Xaraes), Mombaça grass (Panicum maximum cultivar Mombaça), Tanzania grass (Panicum maximum, cultivar Tanzania) and Tifton 85 grass (Cynodon spp cultivar Tifton 85). The weather parameters were collected by an automatic meteorological station installed in the location and used for irrigation management. The experiment was arranged in a split-plot completely randomized block design, considering the grasses as plots... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forage production; Growth; Seasonality; Vegetation dynamics; Weather. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300015 |
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| Registros recuperados: 919 | |
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