The Siderophore Metabolome of Azotobacter vinelandii
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چکیده
منابع مشابه
Zn Increases Siderophore Production in Azotobacter vinelandii.
When Azotobacter vinelandii was grown in the presence of low levels of iron, the addition of 20 or 40 muM ZnSO(4) caused earlier production of the catechol siderophores and a dramatic increase in the amount of azotobactin. The level of cellular iron was not significantly lowered in Zn -grown cells, which suggested that Zn was not causing more severe, or earlier, iron limitation. Also, Zn did no...
متن کاملPlasmids of Azotobacter vinelandii.
Four laboratory strains and two isolates of Azotobacter vinelandii were found to contain plasmids. Twenty-five laboratory strains which could fix nitrogen did not have free, covalently closed circular plasmid DNA. The plasmids varied in size from 9 to 52 megadaltons, and each strain yielded only one plasmid. No discernible differences in ability to fix nitrogen were found between plasmid-bearin...
متن کاملUltrastructure of Azotobacter vinelandii.
Vegetative cells and cysts of Azotobacter vinelandii 12837 were prepared for electron microscopy by several methods assumed to preserve structural details destroyed by techniques previously reported in the literature. Examination of large numbers of cells and cysts by these methods revealed four structural details not reported previously: intine fibrils, intine vesicles, intine membrane, and mi...
متن کاملGenes in Azotobacter vinelandii
Azotobacter vinelandii contains a heterodimeric, membrane-bound [NiFelhydrogenase capable of catalyzing the reversible oxidation of H2. The 13 and at subunits of the enzyme are encoded by the structural genes hoxK and hoxG, respectively, which appear to form part of an operon that contains at least one further potential gene (open reading frame 3 1ORF3]). In this study, determination of the nuc...
متن کاملSuccinic dehydrogenase of Azotobacter vinelandii.
During the investigation of the Krebs cycle in Azotobacter agile, strain 4.4 (Repaske and Wilson, 1953), it was found that whole cells normally required 20 minutes before adaptation to succinate, but succinoxidase activity could be demonstrated in cell-free extracts made from unadapted cells. If extracts prepared in a 10 kc Raytheon sonic oscillator were centrifuged at 145,000 G for 30 minutes,...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2016
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.03160-15