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Merck

P8124

Sigma-Aldrich

Pyoverdines

from Pseudomonas fluorescens, >90% (HPLC)

Sinónimos:

Pyoverdine Detection, Pyoverdine Protein, Siderophore Protein

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About This Item

Código UNSPSC:
12352200
NACRES:
NA.32

origen biológico

Pseudomonas fluorescens

Nivel de calidad

Ensayo

>90% (HPLC)

Formulario

powder

solubilidad

H2O: ~10 mg/mL

Condiciones de envío

wet ice

temp. de almacenamiento

−20°C

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Aplicación

Pyoverdines from Pseudomonas fluorescens has been used :
  • in tryptophan fluorescence quenching to determine its binding to neutrophil-gelatinase-associated lipocalin (NGAL)
  • to detect pyoverdine diffusion surrounding siderophore-conjugated monobactam (MB-1)-resistant colonies in chelexed, dialyzed Mueller-Hinton broth (CDMHB)
  • for synchronous fluorescence spectra of purified pyoverdine

Acciones bioquímicas o fisiológicas

Pyoverdines help in promoting plant growth by chelating iron and rendering it unavailable for plant pathogens. The ferri-pyoverdine complex acts as a signaling molecule inducing the production of secreted virulence factors in Pseudomonas aeruginosa.
Pyoverdines, also called pseuobactins and pyoverdins, are fluorescent siderophores that have high affinity for iron (1032 M-1), and are synthesized by fluorescent pseudomonads under iron-deficient growth conditions. Pyoverdines were shown to prevent iron toxicity produced by iron overload in hepatocyte cultures and effectively scavenges the hydroxyl and peroxyl radicals. Pyoverdines are effective in acquiring iron from transferrin and lactoferrin. Pyoverdines are also involved in the suppression of pythium-induced damping-off of tomato and promotion of growth in some higher plants.
Pyoverdines, also called pseuobactins and pyoverdins, are fluorescent siderophores that have high affinity for iron, and are synthesized by fluorescent pseudomonads under iron-deficient growth conditions.

Forma física

Supplied as a mixture containing mainly the succinic acid (MW=1161), 2-hydroxy glutaramide (MW=1190), and succinamide (MW=1160) forms of pyoverdines.

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Referencia del producto
Descripción
Precios

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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Antioxidant and free radical scavenging activities of the iron chelators pyoverdin and hydroxypyrid-4-ones in iron-loaded hepatocyte cultures: comparison of their mechanism of protection with that of desferrioxamine.
Morel I
Free Radical Biology & Medicine, 13(5), 499-508 (1992)
Adaptation-based resistance to siderophore-conjugated antibacterial agents by Pseudomonas aeruginosa.
Tomaras AP
Antimicrobial Agents and Chemotherapy, 57(9), 4197-4207 (2013)
Mylene Vaillancourt et al.
PLoS pathogens, 19(4), e1010942-e1010942 (2023-04-08)
During chronic cystic fibrosis (CF) infections, evolved Pseudomonas aeruginosa antibiotic resistance is linked to increased pulmonary exacerbations, decreased lung function, and hospitalizations. However, the virulence mechanisms underlying worse outcomes caused by antibiotic resistant infections are poorly understood. Here, we investigated
Pyoverdine, the Major Siderophore in Pseudomonas aeruginosa, Evades NGAL Recognition.
Peek ME
Interdisciplinary perspectives on infectious diseases, 843509-843509 (2012)
Biological activity of secondary metabolites produced by a strain of Pseudomonas fluorescens.
Boruah HP and Kumar BS
Folia Microbiologica, 47(4), 359-363 (2002)

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