Results 21 to 30 of about 1,633 (178)

Evaluation of the productive development of Melipona scutellaris beehives [PDF]

Biotemas, 2008
Stingless beekeeping has drawn the general attention of beekeepers because of the easy management and the quality of products. Nevertheless, little is known about their production and biology.
Elisângela de Lima Alves, Patrícia Cândido da Cruz Silva, Denize Núbia Souza, Darklê Luiza de Souza, Claudete Maria da Silva, Glayciane Costa Góis, Adriana Evangelista-Rodrigues, Marcelo Luis Rodrigues   +7 more
doaj   +1 more source

Determination of fipronil LD50 for the brazilian bee Melipona scutellaris

Julius-Kühn-Archiv, 2012
Apis mellifera L., 1758 in toxicology studies of insecticides to bees, the aim of this study was to determine the LD50 of fipronil by topical application on the stingless bees Melipona scutellaris Latreille, 1811. Foraging bees were collected at the nest
Lourenço, Clara T., Carvalho, Stephan M., Malaspina, Osmar, Nocelli, Roberta C. F.   +3 more
doaj   +2 more sources

Determination of acute lethal doses (LD50 and LC50) of imidacloprid for the native bee Melipona scutellaris Latreille, 1811 (Hymenoptera: Apidae) [PDF]

Sociobiology, 2015
The bee species Melipona scutellaris (L.) is native to Brazil, stingless and belongs to the Apidae family. In Brazil, stingless bees are responsible for 40 % to 90% of tree species pollination, depending on the considered ecosystem.
Leticia Mariano da Costa, Tatiane Caroline Grella, Rodrigo Avelaira Barbosa, Osmar Malaspina, Roberta Cornélio Ferreira Nocelli   +4 more
doaj   +3 more sources

Yeast Diversity in Honey and Pollen Samples from Stingless Bees in the State of Bahia, Brazil: Use of the MALDI-TOF MS/Genbank Proteomic Technique [PDF]

Microorganisms
(1) Background: The identification of microorganisms includes traditional biochemical methods, molecular biology methods evaluating the conserved regions of rRNA, and the molecular biology of proteins (proteomics), such as MALDI-TOF MS mass spectrometry.
Raquel Nunes Almeida da Silva, Karina Teixeira Magalhães-Guedes, Rogério Marcos de Oliveira Alves, Angélica Cristina Souza, Rosane Freitas Schwan, Marcelo Andrés Umsza-Guez   +5 more
doaj   +2 more sources

Antiproliferative Constituents of Geopropolis from the Bee Melipona scutellaris. [PDF]

Planta Med, 2016
Fractionation of geopropolis from Melipona scutellaris, guided by antiproliferative activity against two colon cancer cell lines (COLO205 and KM12), led to the isolation of two new cinnamic acid esters, mammea-type coumarins 5,7-dihydroxy-6-(3-methyl-2-butenyl)-8-(4-cinnamoyl-3-methyl-1-oxobutyl)-4-propyl-coumarin (1) and 5,7-dihydroxy-6-(4-cinnamoyl-3-
da Cunha MG, Rosalen PL, Franchin M, de Alencar SM, Ikegaki M, Ransom T, Beutler JA.   +6 more
europepmc   +4 more sources

Toxicity of Imidacloprid Against Melipona scutellaris (Latreille, 1811): Preliminary Risk Analysis

Sociobiology
The study aimed to evaluate the oral toxicity of the pesticide Imidacloprid Nortox 400 SC® on native bees (Melipona scutellaris) and assess the potential risk associated with visiting crops treated with this product.
Joyce Costa, Janete Brigante, Eny M. Vieira   +2 more
doaj   +2 more sources

Susceptibility of Melipona scutellaris Latreille (Hymenoptera: Apidae) to Biopesticides

Sociobiology
Products based on entomopathogenic fungi are extensively used to control insect pests. These biopesticides can result in lethal or sublethal effects on non-target organisms.
Joyse Brito Vieira, Cândida Maria Lima Aguiar, Emerson Dechechi Chambó, Marilene Fancelli, Carlos Augusto Dórea Bragança, Carlos Alfredo Lopes de Carvalho   +5 more
doaj   +2 more sources

Gastroprotective Effect of Geopropolis from Melipona scutellaris Is Dependent on Production of Nitric Oxide and Prostaglandin. [PDF]

Evid Based Complement Alternat Med, 2015
The aim of this study was to evaluate the gastroprotective activity of ethanolic extract of geopropolis (EEGP) from Melipona scutellaris and to investigate the possible mechanisms of action. The gastroprotective activity of the EEGP was evaluated using model ulcer induced by ethanol.
Ribeiro-Junior JA, Franchin M, Cavallini ME, Denny C, de Alencar SM, Ikegaki M, Rosalen PL.   +6 more
europepmc   +2 more sources

Antimicrobial and antiproliferative activities of stingless bee Melipona scutellaris geopropolis. [PDF]

BMC Complement Altern Med, 2013
Abstract Background Geopropolis is a type of propolis containing resin, wax, and soil, collected by threatened stingless bee species native to tropical countries and used in folk medicine. However, studies concerning the biological activity and chemical composition of geopropolis are scarce.
da Cunha MG, Franchin M, de Carvalho Galvão LC, de Ruiz AL, de Carvalho JE, Ikegaki M, de Alencar SM, Koo H, Rosalen PL.   +8 more
europepmc   +5 more sources

Comportamento da nidificação de abelhas melíponas [PDF]

Ciência Animal Brasileira, 2020
As melíponas, além de excelentes produtoras de mel, prestam um grande serviço à humanidade através da sua capacidade de polinizar plantas e sua consequente preservação de ecossistemas.
Carlos Roberto da Costa Macedo, Italo de Souza Aquino, Péricles de Farias Borges, Alex daSilva Barbosa, Geovergue Rodrigues de Medeiros   +4 more
doaj   +2 more sources