6 documents found, page 1 of 1
Diploid male production of two amazonian melipona bees (Hymenoptera: Apidae)
Francini, Izaura Bezerra; Nunes-Silva, Carlos Gustavo; Carvalho-zilse, Gislene AlmeidaThe diploid male has already been recorded for Melipona Illger, and herein, in Melipona seminigra merrillae Cockerell and Melipona interrupta manaosensis Schwarz. This paper was carried out at the Instituto Nacional de Pesquisas da Amazonia (INPA), Manaus, AM, Brazil. We produced and monitored 31 new colonies of M. s. merrillae and 32 new colonies of M. i. manaosensis. We sampled 2,995 pupae of M. s. merrillae ...
Antimicrobial activity of honeys from two stingless honeybee species and Apis m...
Cruz, Carolinie Batista Nobre da; Pieri, Fabio Alessandro; Carvalho-zilse, Gislene Almeida; Orlandi, Patrícia Puccinelli; Nunes-Silva, Carlos GustavoMéis são descritos possuindo diferentes propriedades, incluindo a antimicrobiana. Muitos estudos têm apresentado essa atividade de méis produzidos por abelhas Apis mellifera, no entanto estudos incluindo atividades de méis de abelhas sem ferrão são escassos. O objetivo deste estudo foi comparar a atividade antimicrobiana de méis de Melipona compressipes, Melipona seminigra e A. mellifera, coletados no Estado do...
The Genome of Anopheles darlingi, the main neotropical malaria vector
Marinotti, Osvaldo; Cerqueira, Gustavo C.; Almeida, Luiz G.P.; Ferro, Maria Inês Tiraboschi; Loreto, Elgion Lúcio da Silva; Zaha, ArnaldoAnopheles darlingi is the principal neotropical malaria vector, responsible for more than a million cases of malaria per year on the American continent. Anopheles darlingi diverged from the African and Asian malaria vectors ∼100 million years ago (mya) and successfully adapted to the New World environment. Here we present an annotated reference A. darlingi genome, sequenced from a wild population of males and f...
Does beekeeping reduce genetic variability in Melipona scutellaris (Apidae, Mel...
Carvalho-zilse, Gislene Almeida; Costa-Pinto, M. F.F.; Nunes-Silva, Carlos Gustavo; Kerr, Warwick EstevamMany factors have contributed to reductions in wild populations of stingless bees, such as: deforestation, displacement and destruction of nests by honey gatherers, as well as use of insecticides and other agrochemicals. All of these can potentially affect the populational structure of native species. We analyzed genetic variability and populational structure of Melipona scutellaris, based on five microsatellit...
Cytogenetic analysis of the amazon stingless bee Melipona seminigra merrillae r...
Francini, Izaura Bezerra; Gross, Maria Claudia; Nunes-Silva, Carlos Gustavo; Carvalho-zilse, Gislene AlmeidaCytogenetic analysis of the Amazon stingless bee Melipona seminigra merrillae, by conventional Giemsa staining and C-banding, revealed a different chromosome number for Melipona: 2n = 22 for females and diploid drones while the haploid drones present n = 11. There is no evidence of B chromosomes. This result contrasts with previous studies, in which the chromosome number of 19 Melipona species was determined as...
Isolation, taxonomic identification and investigation of the biotechnological p...
Matos, Italo Thiago Silveira Rocha; Cassa-Barbosa, Luciana Araújo; Medeiros Galvão, Rozana de Souza; Nunes-Silva, Carlos GustavoA wild-type yeast that could ferment D-xylose was isolated from the abdominal content of Nasutitermes sp. collected in the Central Amazon rainforest using sugarcane bagasse hemicellulosic hydrolyzate (SBHH) as selective medium. The yeast was identified as Meyerozyma guilliermondii. Its ability to ferment D-xylose was assessed using liquid medium containing Durham tubes. A fermentometer assay showed a low ethano...