Nitrogen Fixing Trees
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Functional antagonism between nitrogen-fixing leguminous trees and calcicole-drought-tolerant trees in the Cerrado
ABSTRACT The Cerrado is the largest savanna of South America and its physiognomy varies from savanna to woodlands. There are two main types of woodlands in the Cerrado: dystrophic woodlands, dominated by N-fixing leguminous trees (LEG), and mesotrophic woodlands dominated by non-leguminous drought-tolerant trees (DRY), which are calcicoles and sensitive to A
Acta Bot. Bras.. Publicado em: 30/01/2017
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2. Influência de leguminosas arbóreas na mcrofauna do solo em pastagem.
Objetivou-se com o presente trabalho avaliar o efeito de quatro espécies de leguminosas arbóreas fixadoras de nitrogênio atmosférico em um pasto de capim Marandu (Brachiaria brizantha), na densidade, diversidade, eqüabilidade e riqueza da macrofauna de um Argissolo Vermelho Amarelo de baixa fertilidade natural. O grupo Oligochaeta se destacou nos consó
Seropédica: Embrapa Agrobiologia. Publicado em: 2011
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3. Avaliação da funcionalidade do solo em sistemas florestais enriquecidos com leguminosas. / Evaluation of soil functionality in forest systems enriched with leguminous trees.
The study was conducted in an area of abandoned pasture, originally under the cover of the Atlantic Forest, to evaluate the process of succession and restoration of degraded areas. The area was located in Valença municipality, State of Rio de Janeiro Brazil. In 2001 it was conducted a planting of nitrogen fixing leguminous trees in different proportions: 0%
Publicado em: 2009
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4. Taxonomia e diversidade genética de rizóbios microssimbiontes de distintas leguminosas com base na análise polifásica (Box-PCR e 16 S RNAr) e na metodologia de MLSA
The term rhizobia is generically applied to bacteria capable of fixing the atmospheric nitrogen (N2) and converting it to a form assimilable by the plant, when in symbiosis with plants of the Leguminosae family. However, besides their ecological and economic importance, the rhizobia have not been subject of many studies. Based on the data obtained with t
Publicado em: 2008
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5. Diversidade de rizóbios em Florestas de Araucária no Estado de São Paulo / Rhizobia diversity in Araucaria Forests in São Paulo State, Brazil
Araucaria angustifolia (B.) Ktz has a great social, environmental and economic importance to south and southeastern Brazil, although ecosystems supporting this species have been degraded by human activity, making it an endangered species. The nitrogen cycle has vital importance for life and has a special role in the development and upkeep of forests. The nit
Publicado em: 2007
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6. Relação entre longevidade foliar, nitrogenio e compostos secundarios em folhas de leguminosas arboreas
A duração do ciclo de vida foliar determina características distintas nas folhas, que são relevantes para a sobrevivência da planta em diferentes habitats. Tem sido verificado que as espécies perenifólias apresentam mecanismos mais eficientes de conservação de nitrogênio (N) em relação às espécies decíduas. Esses mecanismos são: eficiência d
Publicado em: 2005
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7. Evolution of cytochrome oxidase, an enzyme older than atmospheric oxygen.
Cytochrome oxidase is a key enzyme in aerobic metabolism. All the recorded eubacterial (domain Bacteria) and archaebacterial (Archaea) sequences of subunits 1 and 2 of this protein complex have been used for a comprehensive evolutionary analysis. The phylogenetic trees reveal several processes of gene duplication. Some of these are ancient, having occurred i