A. Braud

Publications13
h-index8
Citations855
Highly Influential Citations30
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Presence of the siderophores pyoverdine and pyochelin in the extracellular medium reduces toxic metal accumulation in Pseudomonas aeruginosa and increases bacterial metal tolerance.
In order to get access to iron, Pseudomonas aeruginosa strain PAO1 produces two major siderophores pyoverdine (PVD) and pyochelin (PCH). Both siderophores are able to chelate many other metals in… Expand
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New roles for bacterial siderophores in metal transport and tolerance.
Siderophores are chelators with extremely strong affinity for ferric iron and are best known for their capacity to feed microorganisms with this metal. Despite their preference for iron, they can… Expand
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New insights into the metal specificity of the Pseudomonas aeruginosa pyoverdine-iron uptake pathway.
Pyoverdine (PvdI) is the major siderophore secreted by Pseudomonas aeruginosa PAOI in order to get access to iron. After being loaded with iron in the extracellular medium, PvdI is transported across… Expand
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The Pseudomonas aeruginosa pyochelin-iron uptake pathway and its metal specificity.
Pyochelin (Pch) is one of the two major siderophores produced and secreted by Pseudomonas aeruginosa PAO1 to assimilate iron. It chelates iron in the extracellular medium and transports it into the… Expand
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The PvdRT-OpmQ efflux pump controls the metal selectivity of the iron uptake pathway mediated by the siderophore pyoverdine in Pseudomonas aeruginosa.
Pyoverdine (PVD) is the major siderophore produced by Pseudomonas aeruginosa for iron acquisition. PvdRT-OpmQ is an ATP-dependent efflux pump involved in the secretion of newly synthesized pyoverdine… Expand
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Short-term effects of sewage sludge application on phosphatase activities and available P fractions in Mediterranean soils
Abstract The aim of this study was to investigate factors regulating phosphatase activities in Mediterranean soils subjected to sewage sludge applications. Soils originating from calcareous and… Expand
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How do low doses of desferrioxamine B and EDTA affect the phytoextraction of metals in sunflower?
The aim of this study was to compare the efficiency of siderophore desferrioxamine B (DFOB) and EDTA in increasing the phytoextraction of metals in sunflower. A 28-day pot experiment was conducted in… Expand
  • 9
Brassica juncea tested on urban soils moderately contaminated by lead: Origin of contamination and effect of chelates
ABSTRACT Urban garden soils are a potential repository of heavy metal pollution, resulting from either anthropogenic or geogenic origin. The efficiency of phytoextraction was compared on two garden… Expand
  • 8
A quick rhizobacterial selection tests for the remediation of copper contaminated soils
The main objective of the study is to develop and improve quick bacterial tests to select the best candidates for the bioaugmentation of metal‐contaminated soil, coupled with phytoextraction.
  • 8
Chelate-assisted phytoextraction of lead using Fagopyrum esculentum: laboratory vs. field experiments
Abstract The development of more sustainable remediation techniques has been receiving greater attention, as an alternative to soil excavation plan in urban gardens. An in situ phytoextraction… Expand
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