Plant Taxonomy
Mostrando 1-12 de 51 artigos, teses e dissertações.
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1. METABOLÔMICA DE PLANTAS: MÉTODOS E DESAFIOS
Metabolomics has played a central role in various areas of plant sciences, offering new perspectives for the advancement of agriculture, drug discovery, chemical ecology and taxonomy. Plant metabolomics (identification and quantification) aims to understand the relationship between biological systems and genetic, pathological and or environmental stimuli in
Quím. Nova. Publicado em: 2020-03
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2. The genera Bernardia Houst. ex Mill. and Tragia L. (Euphorbiaceae, Acalyphoideae) in Northeastern Brazil
Resumo: Bernardia e Tragia são gêneros da subfamília Acalyphoideae com espécies ocorrendo nas regiões tropicais e subtropicais. Estudos referenciando especificamente esses gêneros são escassos no Brasil, incluindo o Nordeste brasileiro. Portanto, o presente trabalho teve como objetivo realizar o estudo taxonômico das espécies ocorrentes na região N
Biota Neotrop.. Publicado em: 01/04/2019
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3. New initiatives for Brazilian aquatic plant data management
ABSTRACT Initiatives directed at managing information on aquatic plants can support different areas of scientific research, educational practices and political decisions for sustainable management and protection of wetlands and natural resources, as well as reveal knowledge gaps regarding aquatic plants and wetlands. Furthermore, such initiatives can contrib
Acta Bot. Bras.. Publicado em: 29/11/2018
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4. Pollen morphology and viability in Bromeliaceae
ABSTRACT Pollen morphology characterization is important in taxonomy, conservation and plant breeding, and pollen viability studies can support breeding programs. This study investigated pollen morphology and male fertility in 18 species of Bromeliaceae with ornamental potential. For morphological characterization, pollen grains were acetolyzed and character
An. Acad. Bras. Ciênc.. Publicado em: 07/12/2017
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5. Genesis and Classification of Sodic Soils in the Northern Pantanal
ABSTRACT The simultaneous occurrence of high levels of exchangeable sodium percentage (ESP) and alkalinity in soils imposes restrictions on plant development and affects physical properties such as porosity, bulk density, permeability, and hydraulic conductivity. Although sodic soils are frequent in the flood plain of the São Lourenço River, northern Panta
Rev. Bras. Ciênc. Solo. Publicado em: 02/10/2017
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6. Morphology of seeds and seedlings of four species of Vigna Savi (Leguminosae, Phaseolinae)
Four neotropical species of Vigna Savi (Leguminosae, Phaseolinae) have potential value as forage crops or ornamentals and could be cultivated in tropical or subtropical areas, even on floodplains. In order to obtain useful data for their culture and taxonomy, the seed morphology, germination pattern (hypogeal or epigeal) and seedling development were studied
Acta Bot. Bras.. Publicado em: 2013-09
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7. Morphology and 18S rDNA gene sequence of Spirostomum minus and Spirostomum teres (Ciliophora: Heterotrichea) from Rio de Janeiro, Brazil
Species of Spirostomum Ehrenberg, 1838 are widely used as model organisms in ecological studies of environmental impacts and symbioses between ciliates and human pathogenic bacteria. However, the taxonomy of this genus is confused by the superficiality of the morphological descriptions of its included species, and the use of only a few characters for their d
Zoologia (Curitiba). Publicado em: 2013-02
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8. Comparison of two methods for in vitro multiplication of Radopholus similis and Pratylenchus brachyurus in carrot cylinders
The use of in vitro mass multiplication of nematodes under axenic conditions allows intensification of studies on taxonomy, biology, epidemiology and control of these pathogens. In the present study, two methods were compared for in vitro multiplication of two species of plant-parasitic nematodes, Radopholus similis and Pratylenchus brachyurus in 20, 40 and
Tropical Plant Pathology. Publicado em: 2012-08
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9. Karyological analysis of Proechimys cuvieri and Proechimys guyannensis (Rodentia, Echimyidae) from central Amazon
The aim was to characterize the karyotype of rodents of the genus Proechimys from three localities in the central Brazilian Amazon, in the search for new markers that might shed light on our understanding of the taxonomy and evolutionary history of this taxon. Two karyotypes were found, viz., 2n = 28, FN = 46 in individuals from the NRSP (Cuieiras River) and
Genetics and Molecular Biology. Publicado em: 20/01/2012
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10. Taxonomia, estrutura e dinâmica do fitoplâncton e do zooplâncton em um sistema piloto de tratamento de esgoto sanitário em lagoas de polimento / Taxonomy, structure and dynamics of phytoplankton and zooplankton in a pilot seawage treatment plant of stabilization ponds
Apesar da importância das microalgas e cianobactérias no tratamento de esgotos por lagoas de estabilização, são poucas as referências de levantamentos taxonômicos nesses ambientes. O presente trabalho teve como objetivos o estudo taxonômico das microalgas e cianobactérias em um sistema piloto de tratamento de esgoto sanitário, avaliar a estrutura d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/11/2011
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11. Contribuições para o conhecimento dos fungos fitopatogênicos associados à espécie ameaçada Euterpe edulis e para o esclarecimento do complexo Trichoderma harzianum / Contributions towards the knowledge of plant pathogenic fungi associated with the endangered species Euterpe edulis and the elucidation of the Trichoderma harzianum species-complex
Três estudos cobrindo áreas distintas da micologia foram desenvolvidos: 1) Um estudo visando explorar a diversidade morfológica de oitenta e um isolados reconhecidos como pertencentes à espécie Trichoderma harzianum sensu lato, em busca de descontinuidades em caracteres morfológicos que refletissem os doze diferentes clados reconhecidos pelo estudo fil
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/03/2011
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12. The need to carry out re-inventory of plant pathogenic fungi
Plant pathogenic fungi have long been documented through concerted efforts of mycologists and plant pathologists; these records have served as the basis for regional and countrywide checklists which have since been put into databases listing hosts and associated fungi. They are used by governments and scientists to formulate trade quarantine policies and det
Tropical Plant Pathology. Publicado em: 2011-08