Floricola
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Oncidium: a orquídea em expansão no cenário florícola
Hortic. Bras.. Publicado em: 2015-12
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2. Microhabitats ocupados por Myxomycetes na Floresta Atlântica Brasileira: inflorescências de Heliconiaceae
Resumo A ocorrência de mixomicetos em inflorescências de Heliconia psittacorum L.f. foi pesquisada em quatro unidades de conservação situadas no Nordeste do Brasil, visando avaliar a ocupação deste microhabitat em fragmentos de Floresta Atlântica, numa faixa altitudinal de 30-750 m. Foram examinadas partes mortas de inflorescências ainda presas à pl
Braz. J. Biol.. Publicado em: 27/11/2015
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3. Development of the mosaic of dominant arboreal ants and its importance to the biological control of insects associated with cocoa (Theobroma cacao L.) / Desenvolvimento do mosaico de formigas arborícolas dominantes e sua importância no controle biológico natural dos insetos associados ao cacaueiro (Theobroma cacao L.)
Agroforests contribute to the survival of many native species. The cocoa plantations inserted in the Atlantic Forest biome in Southeast Bahia contribute to the conservation of a large amount of organisms, including ants. The evaluation of the ontogenetic succession of ants can help understanding the mosaic dynamics of the arboreal ants. Since this mosaic can
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
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4. Comunidades de formigas (Hymenoptera: Formicidae) em um ecossistema urbano próximo à Mata Atlântica
A relação entre um ecossistema urbano localizado próximo à Mata Atlântica na região sudeste do Brasil e as comunidades de formigas foi estudada com o objetivo de quantificar a riqueza e a abundância de formigas no interior e no entorno das residências. Oitenta casas foram amostradas, tendo sido encontradas 58 espécies e 28 gêneros pertencentes a 7
Brazilian Journal of Biology. Publicado em: 2007-11
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5. Fusion-mediated transfer of plasmids into Spiroplasma floricola cells.
We have developed and characterized a system for the transfer of plasmids encapsulated in large unilamellar vesicles (LUV) into Spiroplasma floricola BNR1 cells. The approach is based on the ability of S. floricola-derived LUV to fuse with S. floricola cells. The fusion was continuously monitored by an assay for lipid mixing based on the dequenching of the f
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6. Fusion of Spiroplasma floricola cells with small unilamellar vesicles is dependent on the age of the culture.
Small unilamellar vesicles were labeled with the fluorescent probe octadecylrhodamine B chloride and mixed with intact Spiroplasma floricola cells. The increase in fluorescence observed was interpreted as a result of the dilution of the probe in the unlabeled S. floricola membranes because of lipid mixing upon fusion. The progression of S. floricola cultures
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7. Nutritional requirements of two flower spiroplasmas and honeybee spiroplasma.
A chemically defined medium (CC-494) was used to study the nutritional requirements of three spiroplasmas representing three distinct serogroups: flower spiroplasmas [Spiroplasma floricola and FS (SR-3)] and honeybee spiroplasma [HBS (AS-576)]. Glucose, fructose, and mannose were utilized by all three spiroplasmas. In addition, the honeybee spiroplasma could
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8. Spiroplasma membrane lipids.
Membranes of six spiroplasma strains belonging to different Spiroplasma species and subgroups were isolated by a combination of osmotic lysis and sonication in the presence of EDTA to block endogenous phospholipase activity. Analysis of membrane lipids showed that in addition to free and esterified cholesterol the spiroplasmas incorporated exogenous phosphol
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9. Vitamin requirements of three spiroplasmas.
A chemically defined medium (CC-494M) was used to study the vitamin requirements of three spiroplasmas representing three distinct serogroups: flower spiroplasmas [Spiroplasma floricola and FS (SR-3)] and honeybee spiroplasma [HBS (AS-576)]. Nicotinic acid and riboflavin were essential to spiroplasma growth. Nicotinamide could substitute for nicotinic acid.
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10. In vitro susceptibility of spiroplasmas to heavy-metal salts.
The susceptibility of six spiroplasma strains to heavy-metal salt was characterized in terms of minimal inhibitory concentrations and minimal biocidal concentrations in broth tube dilution tests. The strains were most susceptible to mercuric chloride and silver nitrate; less susceptible to copper sulfate, cobalt chloride, lead nitrate, and cadmium sulfate; a
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11. Chemically Defined Medium for Cultivation of Several Epiphytic and Phytopathogenic Spiroplasmas
A chemically defined medium, LD82, was formulated for in vitro cultivation of spiroplasmas. Medium LD82 supported good growth for four epiphytic and insect-pathogenic spiroplasmas, Spiroplasma floricola 23-6T, Spiroplasma sp. strain SR3, Spiroplasma sp. strain brevi, and Spiroplasma sp. strain AS576, and of the phytopathogenic spiroplasmas Spiroplasma citri
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12. Procaryotic and eucaryotic traits of DNA methylation in spiroplasmas (mycoplasmas).
Differences in the type of base methylated (cytosine or adenine) and in the extent of methylation were detected by high-pressure liquid chromatography in the DNAs of five spiroplasmas. Nearest neighbor analysis and digestion by restriction enzyme isoschizomers also revealed differences in methylation sequence specificity. Whereas in Spiroplasma floricola and