Results 51 to 60 of about 1,633 (178)

Genetic variability in Melipona scutellaris from Recôncavo, Bahia, Brazil

Genetics and Molecular Research, 2013
Bees play a key role in pollination and thereby help maintain plant diversity. The stingless bee Melipona scutellaris is an important pollinator in northeastern Brazil because it is endemic to this region. Both deforestation and timber harvesting have reduced the nesting sites for this species, thus reducing its population and range.
J L, Viana, A K, Francisco, C A L, Carvalho, A M, Waldschmidt   +3 more
openaire   +2 more sources

Chemical profile and antioxidant, anti-inflammatory, antimutagenic and antimicrobial activities of geopropolis from the stingless bee Melipona orbignyi [PDF]

, 2017
Licensee MDPI, Basel, Switzerland. Geopropolis is a resin mixed with mud, produced only by stingless bees. Despite being popularly known for its medicinal properties, few scientific studies have proven its biological activities.
Balestieri, José Benedito Perrella, Campos, Jaqueline Ferreira, Carollo, Carlos Alexandre, Estevinho, Leticia M., Santos, Cintia Miranda, Santos, Edson Lucas dos, Santos, H.S., Silva, Denise Brentan, Souza, Kely de Picoli   +8 more
core   +1 more source

Caracterização botânica e avaliação do potencial antimicrobiano do mel produzido por Apis mellifera L, Melipona scutellaris Latreille e Tetragonisca angustula Latreille (Hymenoptera: Apidae) em um fragmento de floresta ombrófila densa no estado da Bahia, Brasil

Paubrasilia, 2020
Este estudo busca caracterizar, através dos grãos de pólen, a origem botânica de amostras de mel produzido por Apis mellifera, Melipona scutellaris e Tetragonisca angustula, identificando recursos vegetais partilhados e analisando também a capacidade ...
Marcel Carvalho de Jesus, Débora Cavalcante de Oliveira, Luis Enrique Rodriguez Figueroa, Hugo Neves Brandão, Hélio Mitoshi Kamida, Francisco de Assis Ribeiro dos Santos   +5 more
doaj   +1 more source

Physicochemical characteristics and sensory profile of honey samples from stingless bees (Apidae: Meliponinae) submitted to a dehumidification process

Anais da Academia Brasileira de Ciências, 2009
This study was conducted to evaluate the effect of a dehumidification process on the physicochemical and sensory characteristics of stingless-bee honey. Melipona scutellaris and M. quadrifasciata honey samples were submitted to a dehumidification process
Carlos A.L. Carvalho, Geni S. Sodré, Antonio A.O. Fonseca, Rogério M.O. Alves, Bruno A. Souza, Lana Clarton   +5 more
doaj   +1 more source

Sexual dimorphism in visual and olfactory brain centers in the perfume‐collecting orchid bee Euglossa dilemma (Hymenoptera, Apidae)

Journal of Comparative Neurology, Volume 526, Issue 13, Page 2068-2077, September 1, 2018., 2018
We investigated the brain morphology of the orchid bee Euglossa dilemma. Sexual dimorphism was found in visual and olfactory brain regions, including micro‐ and macroglomeruli in the antennal lobe. Overall, our results suggest that the evolution of perfume communication did not involve drastic changes in olfactory brain morphology.
Philipp Brand, Virginie Larcher, Antoine Couto, Jean‐Christophe Sandoz, Santiago R. Ramírez   +4 more
wiley   +1 more source

Antioxidant Activity of a Geopropolis from Northeast Brazil: Chemical Characterization and Likely Botanical Origin

Evidence-Based Complementary and Alternative Medicine, Volume 2017, Issue 1, 2017., 2017
Geopropolis is a product containing wax, plant resin, and soil particles. It is elaborated by stingless bees of tribe Meliponini. Methanol extracts of sample of geopropolis produced by Scaptotrigona postica (“mandaguari”) in the state of Rio Grande do Norte (RN, northeast Brazil) were analyzed for the determination of standard parameters (total phenols,
Joselena M. Ferreira, Caroline C. Fernandes-Silva, Antonio Salatino, Dejair Message, Giuseppina Negri, Kuttulebbai N. S. Sirajudeen   +5 more
wiley   +1 more source

Antibiofilm and Antioxidant Activity of Propolis and Bud Poplar Resins versus Pseudomonas aeruginosa

Evidence-Based Complementary and Alternative Medicine, Volume 2017, Issue 1, 2017., 2017
Pseudomonas aeruginosa is a common biofilm‐forming bacterial pathogen implicated in lung, skin, and systemic infections. Biofilms are majorly associated with chronic lung infection, which is the most severe complication in cystic fibrosis patients characterized by drug‐resistant biofilms in the bronchial mucus with zones, where reactive oxygen species ...
Stefania De Marco, Miranda Piccioni, Rita Pagiotti, Donatella Pietrella, Juraj Majtan   +4 more
wiley   +1 more source

Does the waggle dance help honey bees to forage at greater distances than expected for their body size? [PDF]

, 2015
A honey bee colony has been likened to an oil company. Some members of the company or colony prospect for valuable liquid resources. When these are discovered other group members can be recruited to exploit the resource. The recruitment of nestmates to a
Beekman, Beekman, Beekman, Beekman, Beutler, Biesmeijer, Biesmeijer, Couvillon, Couvillon, Couvillon, Czaczkes, Donaldson-Matasci, Dornhaus, Dornhaus, Dramstad, Dyer, Greenleaf, Grüter, Haskell, Heinrich, Heinrich, Janzen, Jarau, Kuhn-Neto, Lindauer, Lindauer, Maynard Smith, Maynard Smith, Nieh, Nieh, Nieh, Nieh, Nieh, Oldroyd, Osborne, Ratnieks, Ratnieks, Schneider, Schürch, Schürch, Seeley, Seeley, Seeley, Seeley, Sherman, van Nieuwstadt, Visscher, von Frisch, Wilson, Zurbuchen   +49 more
core   +2 more sources

Chemical Composition and Pharmacological Effects of Geopropolis Produced by Melipona quadrifasciata anthidioides

Oxidative Medicine and Cellular Longevity, Volume 2017, Issue 1, 2017., 2017
Stingless bees produce geopropolis, which is popularly described for its medicinal properties, but for which few scientific studies have demonstrated pharmacological effects. The objective of this study was to investigate the chemical composition of the geopropolis of Melipona quadrifasciata anthidioides and to evaluate its antioxidant, antimutagenic ...
Cintia Miranda dos Santos, Jaqueline Ferreira Campos, Helder Freitas dos Santos, José Benedito Perrella Balestieri, Denise Brentan Silva, Kely de Picoli Souza, Carlos Alexandre Carollo, Leticia M. Estevinho, Edson Lucas dos Santos, Kota V. Ramana   +9 more
wiley   +1 more source

The deposition of anal excretions by Melipona favosa foragers (Apidae: Meliponinae): behavioural observations concerning the location of food sources [PDF]

, 2000
Melipona favosa consistently deposited anal excretions while foraging. Anal depositions were released more frequently and by more bees on artificial food sources at a greater distance from the nest.
Aguilar, I. (Ingrid), Sommeijer, M.J.
core   +1 more source