Soil Biochemistry
Mostrando 13-17 de 17 artigos, teses e dissertações.
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13. Atributos bioquímicos como indicadores da qualidade de solo em florestas de Araucaria angustifolia (Bert.) O. Ktze. no estado de São Paulo. / Biochemichal attributes as soil quality indicator in Araucaria angustifolia (Bert.). Ktze. forests in the State of São Paulo.
Araucaria angustifolia, espécie brasileira considerada a mais explorada devido à qualidade de sua madeira, encontra-se na atualidade ameaçada de extinção. Diante deste fato a preservação dos remanescentes torna-se ainda mais importante, considerando que a extinção de uma única espécie pode comprometer todo um ecossistema. O objetivo deste estudo f
Publicado em: 2005
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14. BIOCHEMISTRY OF NITRIFICATION IN SOIL
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15. The rhizosphere: biochemistry and organic substances at the soil–plant interface. 2nd edn.
Oxford University Press.
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16. Reactions depending on iron sulfide and linking geochemistry with biochemistry.
Iron sulfide gives rise to unusual reducing reactions: some dependent on FeS/H2S synergism [NO-3 --> NH3; HC(three bonds)CH--> H2C=CH2, H3C-CH3; -CH2-CO- --> -CH=CH-, -CH2-CH2-; HS-CH2-COOH --> CH3-COOH; others dependent on FeS alone [HS-CH2-CH2-X --> CH2=CH2 (where X = OH, SH, or NH2)]. The experimental conditions are geochemically plausible: 100 degrees C,
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17. Sinorhizobium meliloti Sulfotransferase That Modifies Lipopolysaccharide
Sinorhizobium meliloti is a gram-negative soil bacterium found either in free-living form or as a nitrogen-fixing endosymbiont of a plant structure called the nodule. Symbiosis between S. meliloti and its plant host alfalfa is dependent on bacterial transcription of nod genes, which encode the enzymes responsible for synthesis of Nod factor. S. meliloti Nod
American Society for Microbiology.