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| Registros recuperados: 42 | |
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| Campos,Viviane Aparecida Costa; Santos Júnior,Helvécio Martins dos; Oliveira,Denilson F; Carvalho,Hudson Walace Pereira de; Machado,Alan Rodrigues Teixeira; Tirelli,Aline Auxiliadora. |
| To contribute to the development of antibacterial products from propolis produced by native Brazilian bees, twenty-nine samples of propolis collected from hives in the state of Minas Gerais, Brazil, were screened for in vitro activity against Aeromonas hydrophila, Bacillus subtilis, Pseudomonas aeruginosa, and Staphylococcus aureus. Among the samples from native Brazilian bees, only that from Frieseomelitta varia (Lepeletier, 1836) inhibited in vitro bacterial growth. Consequently, this propolis underwent fractionation by chromatographic methods monitored through Agar-diffusion assays with these bacteria, which resulted in the isolation and identification of 3,5-diprenyl-4-hydroxycinnamic acid (artepillin C), which showed MIC of 62.5 and 250 µg/mL against... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artepillin C; Stingless bees; Antibiotic. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600002 |
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| DRUMOND, P. M.; RIBEIRO, M. de F.; KIILL, L. H. P.; SANTOS, R. S.. |
| Apesar dos inúmeros benefícios associados às abelhas-sem-ferrão, algumas espécies são consideradas pragas agrícolas (como as arapuás, por exemplo), por danificarem caules, flores, folhas e/ou frutos, facilitando a entrada de organismos causadores de doenças, prejudicando o desenvolvimento das plantas, bem como reduzindo a quantidade e o valor comercial dos frutos. Esta publicação reúne algumas medidas que podem auxiliar os produtores rurais a minimizar os impactos negativos causados pelas abelhas-arapuás e a conviver com esse grupo de insetos, o qual desempenha importante papel no ecossistema. |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Abejas sin aguijón; Abejas melíferas; Arapuá; Abelha; Irapuã; Trigona Spinipes; Manejo; Apicultura; Transferência de Tecnologia; Stingless bees; Honey bees; Apidae; Apiculture; Technology transfer. |
| Ano: 2019 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1113555 |
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| Pick,Raquel A.; Blochtein,Betina. |
| Four colonies of Plebeia saiqui (Holmberg, 1903), of São Francisco de Paula, were studied during the period from October/1998 to October/1999. The counting of the bees was proceeded monthly, differentiated workers that came back with and without pollen in the corbicula. Grains of pollen of pots previously marked were collected monthly and identified. The percentage of the pollen types of the samples was estimated: 20% of Asteraceae, 17% Myrtaceae, 15% type Meliaceae and 10% Euphorbiaceae. The remaining corresponds to other pollen types of small representation, besides those the were no identified. The climatic influence on the pollen collection was analyzed being used simple and multiple regressions. It was verified that in the spring and in the summer the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plebeia; Stingless bees; Pollen analysis; Foraging; Climatic influence. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000100025 |
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| Pick,Raquel A.; Blochtein,Betina. |
| The activities of four colonies of Plebeia saiqui (Holmberg, 1903), of São Francisco de Paula, Rio Grande do Sul, Brazil, were studied from October, 1998 to September. 1999, comparatively during the oviposition period and the diapause. The construction of the cells was monitored by direct observation of the nests. The duration of the diapause period varied from 76 to 168 days. Monthly, the bees that left and entered were counted for 10 minutes, at each hour, during the complete period of flight activity. Influence of meteorological factors on the activities of bees flight was analyzed through simple and multiple regressions. During the oviposition period was found that solar irradiation, temperature and relative humidity had a significant influence on bees... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plebeia; Stingless bees; Diapause; Flight activity; Meteorological factors. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000300021 |
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| Viana,Jaqueline Lemos; Sousa,Henrique de Abreu Cerqueira; Alves,Rogério Marcos de Oliveira; Pereira,Derval Gomes; Silva Jr.,Juvenal Cordeiro; Paixão,Joana Fidelis da; Waldschmidt,Ana Maria. |
| Melipona mondury Smith 1863 is an important stingless bee species pollinator and honey/pollen producer, but threatened by fragmentation of habitats throughout its range. This article presents the identification and partial characterization of nesting substrates, bionomic including population features of M. mondury by comparing data between nest architecture of natural beehive and boxes colonies. Nineteen colonies (13 in boxes and six in beehives) were analyzed with regards to substrate nesting, nest characteristics (e.g. length and width of the combs, height and diameter of the pollen and honey jar) and bee population. The average volume and diameter of the trunks cavities used for nesting of M.mondury were18.4 L and 15.8 cm; the average number of combs... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation; Nest architecture; Nesting substrate; Rational management; Stingless bees. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000300102 |
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| Hilário,Sergio D.; Ribeiro,Márcia de F.; Imperatriz-Fonseca,Vera L.. |
| Flight activity of foragers of four colonies of Plebeia remota (Holmberg, 1903) was registered from December 1998 to December 1999, using an automated system (photocells and PLC system). The colonies originated from two different regions: Cunha, state of São Paulo, and Prudentópolis, state of Paraná, Brazil. Flight activity was influenced by different climatic factors in each season. In the summer, the intensity of the correlations between flight activity and climatic factors was smaller than in the other seasons. During the autumn and winter, solar radiation was the factor that most influenced flight activity, while in the spring, this activity was influenced mainly by temperature. Except in the summer, the various climatic factors similarly influenced... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stingless bees; Foraging; Climatic factors; Seasonality; Geographic distribution. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212012000300004 |
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| Torres,A.R.; Sandjo,L.P.; Friedemann,M.T.; Tomazzoli,M.M.; Maraschin,M.; Mello,C.F.; Santos,A.R.S.. |
| In this study, we investigated the chemical composition, and antioxidant and antibacterial properties of ethanolic extracts of propolis (EEP) from Melipona quadrifasciata quadrifasciata and Tetragonisca angustula. Chemical composition of EEP was determined by colorimetry and chromatographic (HPLC-DAD and UPLC-Q/TOF-MS/MS) analysis. Antimicrobial activity of EEP was evaluated against gram-positive (S. aureus, methicillin-resistant S. aureus, E. faecalis) and gram-negative (E. coli and K. pneumoniae) bacteria by the minimal inhibitory concentration (MIC) test using the microdilution method. Furthermore, the growth curve and integrity of cell membrane of S. aureus and E. coli were investigated using standard microbiological methods. HPLC-DAD analysis showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stingless bees; Propolis; Antimicrobial activity; S. aureus; M. quadrifasciata quadrifasciata; T. angustula. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000600617 |
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| Lopes,Denilce Meneses; Campos,Lúcio Antônio de Oliveira; Salomão,Tânia Maria Fernandes; Tavares,Mara Garcia. |
| Due to their high degree of polymorphism, microsatellites are considered useful tools for studying population genetics. Nevertheless, studies of genetic diversity in stingless bees by means of these primers have revealed a low level of polymorphism, possibly the consequence of the heterologous primers used, since in most cases these were not specifically designed for the species under consideration. Herein we compared the number of polymorphic loci and alleles per locus, as well as observed heterozygosity in Melipona rufiventris and M. mondury populations, using specific and heterologous primers. The use of specific primers placed in evidence the greater frequency of polymorphic loci and alleles per locus, besides an expressive increase in observed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Melipona; Stingless bees; Microsatellite; Transferability. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200030 |
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| Marthe,Jefferson de Brito; Pompolo,Silvia das Graças; Campos,Lucio Antônio de Oliveira; Salomão,Tânia Maria Fernandes; Tavares,Mara Garcia. |
| Four colonies of the stingless bee Partamona cupira (Hymenoptera: Apidae) were cytogenetically analyzed using conventional staining and the fluorochromes CMA3 e DAPI. The females have 2n = 34 chromosomes (2K=32<img border=0 src="../../../../../../../img/revistas/gmb/2010nahead/ah06a04CarM.gif" align=absmiddle>+2<img border=0 src="../../../../../../../img/revistas/gmb/2010nahead/ah06a04CarA.gif" align=absmiddle>). Some females, however, presented an additional large B acrocentric chromosome, to a total of 2n = 35. Chromosome B and the chromosomal pairs 2, 9 and 10 showed CMA3+ bands, indicating an excess of CG base-pairs. A clear association was verified between the P. helleri B chromosome SCAR marker and the presence of a B chromosome in P.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: B chromosome; SCAR; Stingless bees. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200009 |
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| Oliveira,Marcio L.; Morato,Elder F.; Garcia,Marcos V.B.. |
| Stingless bees were collected between 1984 and 1990 in continuous forest, forest fragments and cleared areas 90 Km north of Manaus, Amazonas, Brazil. Several methods were employed. a total of 54 species of 21 genera were collected including two undescribed species of Plebeia Schwarz, 1938. The most abundant genera were Trigona Jurine, 1807; Melipona Illiger, 1806; Partamona Schwarz, 1939 and Tetragona Lepeletier, 1825. The most abundant species were Trigona crassipes (Fabricius, 1793) and T. fulviventris Guérin, 1835. Fruit fly traps baited with fragrances for euglossine bees showed to be an useful method for stingless bee collection too. The study area showed a great richness in relation to other regions of the world. However the density of nests found... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diversity; Nest density; Conservation; Amazônia; Stingless bees. |
| Ano: 1995 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000100004 |
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| Roel,Antonia Railda; Peruca,Ricardo Dias; Lima,Felipe Varussa de Oliveira; Cheung,Kwok Chiu; Araujo Neto,Armando; Silva,Leticia Vieira Da; Soares,Suellen. |
| Abstract: The aim of this study was to evaluate the diversity of Meliponini and anothers Apiformes (Apidae sensu lato) from a Cerrado fragment and its surrounding. Malaise traps were installed in a pasture near a fragment of Cerrado and its surrounding, from October to December 2010. Samples were collected at seven-day intervals and preserved in Dietrich solution. The apiforms specimens from each sample were separated in morphospecies and sent to identification. The tribe Meliponini was the most abundant in open areas of pasture than in the Cerrado fragment. The Meliponini species present were Trigona gr. fulviventris, Paratrigona lineata, Trigona recursa, Partamona sp, Trigona spinipes, Trigona gr. hyalinata, Trigona gr. fulviventris, Tetragonisca... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Native bees; Pollinators; Stingless bees. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000200210 |
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| SA, C. P. de; BAYMA, M. M. A.; PINHO, E. A. de C.; DRUMOND, P. M.. |
| No Brasil, a criação racional de abelhas-indígenas-sem-ferrão ou meliponicultura vem crescendo rapidamente, saindo do estágio extrativista, ou de criação rudimentar, para o uso de colmeias racionais e adoção de boas práticas agrícolas. Embora a meliponicultura seja amplamente divulgada como uma atividade de retorno financeiro garantido, não existem na literatura muitos trabalhos demonstrando a sua viabilidade econômica. Este estudo teve como objetivo avaliar o desempenho econômico de um meliponário, constituído por 50 colônias de abelhas-sem-ferrão conhecidas como uruçus (Melipona spp.). |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Abelha indígena sem ferrão; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Miel.; Meliponicultura; Análisis de costo-beneficio; Abejas sin aguijón; Melipona spp; Análise de Custo-Benefício.; Mel; Produção; Abelha; Apicultura; Meliponiculture; Honey; Stingless bees; Cost benefit analysis.. |
| Ano: 2012 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/993698 |
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| Mascena,Valdenio Mendes; Silva,Celso Moreira; Almeida,Cicero Lima de; Alves,Társio Thiago Lopes; Freitas,Breno Magalhães. |
| ABSTRACT This study evaluated the influence of the environment and of two models of beehive (wooden box and ceramic pot) on the flight activity of the ground-nesting bee, Melipona quinquefasciata. The experiment took place in the Chapada do Araripe, in the State of Ceará, Brazil, between July 2014 and June 2015. The study followed colonies in three ceramic pots and four wooden boxes. Observations of the flight activity of the bees and of the climate were made on five days every month, each colony being monitored for 5 min, at intervals of one hour, from 0500 to 1700. The internal temperature and relative humidity of the hives were also recorded every hour throughout the year. The temperature correlated positively with the bees' entering and leaving the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Flight activity; Climate conditions; Types of beehive; Stingless bees. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000400683 |
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| HILÁRIO,S. D.; IMPERATRIZ-FONSECA,V. L.; KLEINERT,A. de M. P.. |
| Flight activity of Melipona bicolor bicolor, coming from Cunha (23º05'S, 44º55'W), Atlantic Forest, was studied in ten colonies, and in two periods: from July to September 1993 and from August to September 1995. The colonies were grouped in weak, medium and strong, according to the diameter of the combs, which can provide a good idea of the number of cells built. 855 observations were accomplished for 5 minutes, every half-hour, from 8 to 18 hours. The total number of bees that entered and left the hive and the number of bees that arrived with mud, pollen and resin, besides the number that went out with debris in that period were counted. It was also registered the temperature and the relative humidity of the air. The total external activity, as well as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stingless bees; Flight activity; Climate conditions; Resource collection. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000200014 |
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| Tavares,Mara Garcia; Pietrani,Nathalia Teixeira; Durvale,Maxwell de Castro; Resende,Helder Canto; Campos,Lucio Antonio de Oliveira. |
| Melipona quadrifasciata is a stingless bee widely found throughout the Brazilian territory, with two recognized subspecies, M. quadrifasciata anthidioides, that exhibits interrupted metasomal stripes, and M. quadrifasciata quadrifasciata, with continuous metasomal stripes. This study aimed to estimate the genetic variability of these subspecies. For this purpose, 127 colonies from 15 Brazilian localities were analyzed, using nine species-specific microsatellite primers. At these loci, the number of alleles ranged from three to 15 (mean: 7.2), and the observed heterozygosity (Ho) ranged from 0.03-0.21, while the expected heterozygosity (He) ranged from 0.23-0.47. The genetic distances among populations ranged from 0.03-0.45. The F ST multilocus value (0.23)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic differentiation; Microsatellites; Population genetics; Stingless bees. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000100016 |
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| Tavares,Mara Garcia; Dias,Luiz Antonio dos Santos; Borges,Andréia Arantes; Lopes,Denilce Meneses; Busse,Angélica Helene Pereira; Costa,Ronaldo Guimarães; Salomão,Tânia Maria Fernandes; Campos,Lucio Antonio de Oliveira. |
| Allozyme, microsatellite and random amplified polymorphic DNA (RAPD) molecular markers were used to investigate the within and between population genetic variability and between population genetic differentiation of the Brazilian stingless bee uruçu amarela (nominally Melipona rufiventris Lepeletier, 1836) present in savanna and Atlantic forest habitats of the Brazilian state of Minas Gerais (MG). We found low levels of within population variability, although there were a large number of private alleles that specifically characterized these populations. The F ST values indicated a high level of genetic diversity between populations. Analysis of molecular variance (AMOVA) showed a high degree of population differentiation between the savanna and Atlantic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endangered species; Genetic divergence; Molecular markers; Stingless bees; Uruçu amarela. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000400027 |
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| Registros recuperados: 42 | |
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