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Artículo
Synthesis of glycine betaine from exogenous choline in the moderately halophilic bacterium Halomonas elongata
(American Society for Microbiology, 1998)
The role of choline in osmoprotection in the moderate halophile Halomonas elongata has been examined. Transport and conversion of choline to betaine began immediately after addition of choline to the growth medium. ...
Artículo
Effector specificity mutants of the transcriptional activator NahR of naphthalene degrading Pseudomonas define protein sites involved in binding of aromatic inducers
(American Society for Biochemistry and Molecular Biology Inc., 1997)
This work reports a genetic analysis of the interactions between NahR, the LysR-type regulator of the NAH operons for biodegradation of naphthalene in Pseudomonas, and its aromatic effectors. Six mutants encoding NahR ...
Artículo
Identification of a gene encoding a thioredoxin-like product necessary for cytochrome c biosynthesis and symbiotic nitrogen fixation in Rhizobium leguminosarum
(American Society for Microbiology, 1994)
A Tn5-induced mutant of Rhizobium leguminosarum bv. viciae could not form nitrogen-fixing nodules on pea or vetch because of a lesion in electron transport to oxygen. The mutant lacked spectroscopically detectable cytochromes ...
Artículo
Characterization of the cycHJKL genes involved in cytochrome c biogenesis and symbiotic nitrogen fixation in rhizobium leguminosarum
(American Society for Microbiology, 1995)
Mutants of Rhizobium leguminosarum bv. viciae unable to respire via the cytochrome aa3 pathway were identified by the inability to oxidize N,N*-dimethyl-p-phenylenediamine. Two mutants which were complemented by cosmid ...
Artículo
Osmoprotectants in Halomonas elongata: High-affinity betaine transport system and choline-betaine pathway
(American Society for Microbiology, 1996)
The osmoregulatory pathways of the moderately halophilic bacterium Halomonas elongata DSM 3043 have been investigated. This strain grew optimally at 1.5 to 2 M NaCl in M63 glucose-defined medium. It required at least 0.5 ...
Artículo
Development of a gene reporter system in moderately halophilic bacteria by employing the ice nucleation gene of Pseudomonas syringae
(American Society for Microbiology, 1995)
The expression of the ice nucleation gene inaZ of Pseudomonas syringae in several moderate halophiles was investigated to establish its utility as a reporter for promoter activity and gene expression studies in these ...
Artículo
Artículo
Role of Nγ-acetyldiaminobutyrate as an enzyme stabilizer and an intermediate in the biosynthesis of hydroxyectoine
(American Society for Microbiology, 1999)
Strain CHR63 is a salt-sensitive mutant of the moderately halophilic wild-type strain Halomonas elongata DSM 3043 that is affected in the ectoine synthase gene (ectC). This strain accumulates large amounts of N')'-acetyl ...