| Literature DB >> 2158973 |
M S Coyne1, A Arunakumari, H S Pankratz, J M Tiedje.
Abstract
The locations of cytochrome cd1 nitrite reductases in Pseudomonas aeruginosa and Pseudomonas fluorescens and copper nitrite reductases in Achromobacter cycloclastes and Achromobacter xylosoxidans were identified. Immunogold labeling with colloidal-gold probes showed that the nitrite reductases were synthesized exclusively in anaerobically grown (denitrifying) cells. Little immunogold label occurred in the cytoplasm of these four strains; most was found in the periplasmic space or was associated with cell membranes. Immunogold labeling of thin sections was superior to fractionation by osmotic shock for locating nitrite reductases. The results support models of dentrification energetics that require a periplasmic, not a cytoplasmic, location for nitrite reductases.Entities:
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Year: 1990 PMID: 2158973 PMCID: PMC208897 DOI: 10.1128/jb.172.5.2558-2562.1990
Source DB: PubMed Journal: J Bacteriol ISSN: 0021-9193 Impact factor: 3.490