Results 41 to 50 of about 12,344 (212)

Rational Design of a Synthetic Galliphore for the Diagnostic Nuclear Imaging and Treatment of Bacterial Infections

open access: yesAngewandte Chemie International Edition, EarlyView.
KO‐NH2 is a synthetic metallophore that preferentially binds Ga3+ over Fe3+ and is recognized by bacterial transporters. Photocrosslinking identifies CirA and Fiu as key uptake proteins in E. coli. KO‐NH2 enables targeted imaging and treatment of E. coli soft tissue infections.
Phuong Nguyen Tran   +5 more
wiley   +1 more source

Nitrogen fixation and nitrogenase activity of Azotobacter chroococcum [PDF]

open access: yes, 1974
The purpose of the present investigation was to study the effect of some chemical, physical and biological factors on growth, efficiency of nitrogen fixation and nitrogenase activity of Azotobacter chroococcum.From biochemical studies with cell-free ...
Brotonegoro, S.
core  

Functional Nitrogenase Cofactor Maturase NifB in Mitochondria and Chloroplasts of Nicotiana benthamiana

open access: yesmBio, 2022
Engineering plants to synthesize nitrogenase and assimilate atmospheric N2 will reduce crop dependency on industrial N fertilizers. This technology can be achieved by expressing prokaryotic nitrogen fixation gene products for the assembly of a functional
Xi Jiang   +8 more
doaj   +1 more source

Identification of sulfurtransferase enzymes in Azotobacter vinelandii [PDF]

open access: yesFEBS Letters, 1991
Rhodanese and 3‐mercaptopyruvate sulphurtransferase have been identified in A. vinelandii. Two distinct active fractions of the two sulphurtransferases were obtained after FPLC ion‐exchange chromatography of material partially purified from crude extracts. Rhodanese has been purified to homogeneity, and it consists of one polypeptide chain of M r ca 25
Pagani, S.   +3 more
openaire   +2 more sources

Enzymatic Electrosynthesis for Sustainable CO2 Conversion: Advancing Circular Carbon Economy

open access: yesCarbon Energy, EarlyView.
Enzymatic electrosynthesis (EES) offers molecular precision in synthesizing value‐added products from CO2. We highlight its distinct edge over alternative enzyme‐hybrid systems and analyze electron transfer pathways. Key strategies to overcome electron transfer bottlenecks and expand product diversity are addressed, and also data‐driven approaches for ...
Yan Xie   +7 more
wiley   +1 more source

Aerobic nitrogen fixation in Azotobacter vinelandii [PDF]

open access: yes, 1977
I ELECTRON DONATION TO NITROGENASEPaper I shows that the hypothesis, that a high ratio of (NADH + NADPH) / (NAD + + NADP + ) is the source of reducing power for nitrogenase in intact A.vinelandii, is invalid.
Haaker, H.B.C.M.
core  

Quantification of ploidy in proteobacteria revealed the existence of monoploid, (mero-)oligoploid and polyploid species [PDF]

open access: yes, 2011
Bacteria are generally assumed to be monoploid (haploid). This assumption is mainly based on generalization of the results obtained with the most intensely studied model bacterium, Escherichia coli (a gamma-proteobacterium), which is monoploid during ...
Jörg Soppa   +7 more
core   +1 more source

Formulation of Bacillus and Azotobacter Consortia in Liquid Cultures: Preliminary Research on Microbes-Coated Urea

open access: yesInternational Journal of Agriculture System, 2020
The spore-forming Bacillus and cysts forming Azotobacter are Plant Growth Promoting Rhizobacteria which has been used as biofertilizer in sustainable agriculture since they tolerant to dried soil. Drought resistant microbes will be useful to coat urea in
Reginawanti Hindersah   +3 more
doaj   +1 more source

Chemotactic Behavior of Azotobacter vinelandii [PDF]

open access: yesApplied and Environmental Microbiology, 1991
Chemotaxis was exhibited by Azotobacter vinelandii motile cells. Exposure of cells to sudden increases in attractant concentration suppressed the frequency of tumbling and resulted in smooth swimming. Cells responded chemotactically to a chemical gradient produced during metabolism.
S, Haneline, C J, Connelly, T, Melton
openaire   +2 more sources

Nitrogenaseless Mutants of Azotobacter vinelandii [PDF]

open access: yesProceedings of the National Academy of Sciences, 1970
Mutants of Azotobacter which grow normally on excess ammonia under a variety of conditions and which grow slowly or not at all on atmospheric nitrogen have been isolated. Extracts of these strains have low or no detectable nitrogenase activity. There are three classes of mutants. Cell-free preparations of members of the first class
G J, Sorger, D, Trofimenkoff
openaire   +2 more sources

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