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Descripción
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| Nitrogen fixation is a highly regulated trait. In the free-living diazotrophic bacterium Azotobacter vinelandii the nitrogen fixation (nif) regulon consists of at least 50 genes distributed in two chromosomal regions. Analysis of polar mutations, Northern blots, lacZ transcriptional fusions and, more recently, quantitative real-time PCR and transcriptomics, has rendered a detailed picture of nif operon structures and expression patterns. Specific regulatory elements NifA and NifL, in concert with nitrogen control proteins GlnD and GlnK, comprise a system that integrates cellular redox, energy, and nitrogen signals to modulate initiation of nif gene expression by a ?54-containing RNA polymerase. | |
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Internacional
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DOI
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Edición del Libro
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Editorial del Libro
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John Wiley & Sons, Inc |
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ISBN
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9781119053095 |
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Serie
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Título del Libro
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Biological Nitrogen Fixation |
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Desde página
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99 |
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Hasta página
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108 |