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Clonal growth and dispersal potential of Leiothrix flagellaris Ruhland (Eriocaulaceae) in the rocky grasslands of Southeastern Brazil Rev. Bras. Bot.
Figueira,José Eugênio Côrtes; Del Sarto,Mário César Laboissiérè.
Leiothrix flagellaris is a small clonal plant that grows in sandy/rocky, nutrient poor soils in the rocky grasslands ("campos rupestres") of southeastern Brazil. In the rainy season most of their flower heads differentiate into small rosettes, produced by pseudovivipary, and connected to the mother-plant by flexible, elongated stalks that can reach up to 90cm. Most of these rosettes remain suspended over rocks or over the sparse herbaceous surrounding vegetation, while a few arch low enough to come into contact with the surrounding soil and take root. These suspended rosettes can reach diameters comparable to currently rooted and reproductively active rosettes produced during previous reproductive periods. As the rooted rosettes grow up, their potential to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canopy development; Clonal reproduction; Demography; Dispersal; Pseudovivipary.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042007000400012
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Candida albicans: genotyping methods and clade related phenotypic characteristics BJM
Lyon,Juliana P.; Moraes,Karen C.M.; Moreira,Leonardo M.; Aimbire,Flávio; Resende,Maria Aparecida de.
Several molecular methods, such as Southern blotting hybridization, Multilocus Sequence Typing, and DNA microsatellite analysis, have been employed to genotype Candida albicans. The genotype analysis allows to group strains in clades, that is, a group composed of one ancestor and its descendants. These genotype studies demonstrate that clades distribution is influenced by geographic area as well as that antifungal resistance is associated with particular clades. These findings suggested that C. albicans reproduces mainly in a clonal manner, with certain degree of DNA microevolution. Additionally, virulence factors and site of isolation have also been associated with clade specificity. The present article is a brief review about the methods used for Candida...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Candida albicans; Clonal reproduction; Microevolution; Genotyping systems; Phenotypic characteristics.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000400003
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