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Antimicrobial activity of honeys from two stingless honeybee species and Apis mellifera (Hymenoptera: Apidae) against pathogenic microorganisms Acta Amazonica
Cruz,Carolinie Batista Nobre da; Pieri,Fabio Alessandro; Carvalho-Zilse,Gislene Almeida; Orlandi,Patrícia Puccinelli; Nunes-Silva,Carlos Gustavo; Leomil,Luciana.
Honeys are described possessing different properties including antimicrobial. Many studies have presented this activity of honeys produced by Apis mellifera bees, however studies including activities of stingless bees honeys are scarce. The aim of this study was to compare the antimicrobial activity of honeys collected in the Amazonas State from Melipona compressipes, Melipona seminigra and Apis mellifera against Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Chromobacterium violaceum, and Candida albicans. Minimum inhibitory concentrations were determined using the agar dilution method with Müller-Hinton agar (for bacteria) or Saboraud agar (for yeast). Staphylococcus aureus and E. faecalis were inhibited by all honeys at concentrations...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Melipona; Antibacterial; Antifungal; Natural products; Functional food.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000200015
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Cytogenetic analysis of the Amazon stingless bee Melipona seminigra merrillae reveals different chromosome number for the genus Scientia Agricola
Francini,Izaura Bezerra; Gross,Maria Claudia; Nunes-Silva,Carlos Gustavo; Carvalho-Zilse,Gislene Almeida.
Cytogenetic 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 2n = 18 for females and n = 9 for haploid males. Based on cytogenetic information available for other Melipona species, we propose that M. s. merrillae has a more derived diploid number. This indicates that chromosome number is not a conservative characteristic within the genus as previously thought. Cytogenetic data for stingless bees are scarce,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Meliponini; Neotropics; Cytogenetics; Diploid male chromosomes.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000500012
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