RESUMO
The microbial degradation of nitrogen compounds from fossil fuels is important because of the contribution these contaminants make to the formation of nitrogen oxides (NOx) and hence to air pollution and acid rain. They also contribute to catalyst poisoning during the refining of crude oil, thus reducing process yields. We review the current status of microbial degradation of aromatic nitrogen compounds and discuss the potential of microbial processes to alleviate these problems.
Assuntos
Poluição do Ar/prevenção & controle , Biodegradação Ambiental , Combustíveis Fósseis , Chuva Ácida , Sequência de Aminoácidos , Biotecnologia/métodos , Carbazóis/metabolismo , Hidrolases/genética , Hidrolases/metabolismo , Biologia Molecular , Óxidos de Nitrogênio/metabolismo , Óperon , Pseudomonas/genética , Pseudomonas/metabolismoRESUMO
Thymine residues in an oligodeoxyribonucleotide are subject to methylation at N3 by the internucleotide methyl phosphotriester linkages. This alkylation occurs most rapidly in the presence of a strong base such as DBU, but also takes place, at a much slower rate, during oligonucleotide synthesis.
