Desferrioxamine-B promoted dissolution of an Oxisol and the effect of low-molecular-weight organic acids

Zhong, Laiyuan; Yang, Ji Won; Li, Liming; Li, Xingyong

doi:10.1007/s00374-013-0803-9

Cited by 11 publications

(9 citation statements)

References 34 publications

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“…The relatively rapid kinetics of siderophore-promoted Mn oxide dissolution, which can result in oxidative degradation of siderophores and the formation of high-affinity Mn(III)-siderophore complexes, could result in a decrease in the concentration of free siderophores available to bind Fe(III). For example, a recent study revealed that DFOB in the absence or presence of oxalate and citrate promoted the dissolution of Mn from an oxisol at pH = 5 to a greater extent than the dissolution of Fe, despite the fact that the soil contained \10-fold more labile Fe than Mn (Zhong et al 2013). Similar antagonistic effects may be possible for other uptake systems that utilize metallophores with similar structures (viz., Mo and V), but no information on this topic is currently available.…”

Section: Siderophores and Manganese Biogeochemical Cyclingmentioning

confidence: 87%

Metallophores and Trace Metal Biogeochemistry

et al. 2014

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Trace metal limitation not only affects the biological function of organisms, but also the health of ecosystems and the global cycling of elements. The enzymatic machinery of microbes helps to drive critical biogeochemical cycles at the macroscale, and in many cases, the function of metalloenzyme-mediated processes may be limited by the scarcity of essential trace metals. In response to these nutrient limitations, some organisms employ a strategy of exuding metallophores, biogenic ligands that facilitate the uptake of metal ions. For example, bacterial, fungal, and graminaceous plant species are known to use Fe(III)-binding siderophores for nutrient acquisition, providing the best known and most thoroughly studied example of metallophores. However, recent breakthroughs have suggested or established the role of metallophores in the uptake of several other metallic nutrients. Furthermore, these metallophores may influence environmental trace metal fate and transport beyond nutrient acquisition. These discoveries have resulted in a deeper understanding of trace metal geochemistry and its relationship to the cycling of carbon and nitrogen in natural systems. In this review, we provide an overview of the current state of knowledge on the biogeochemistry of metallophores in trace metal acquisition, and explore established and potential metallophore systems.Electronic supplementary material The online version of this article (

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Section: Siderophores and Manganese Biogeochemical Cyclingmentioning

confidence: 87%

Metallophores and Trace Metal Biogeochemistry

et al. 2014

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“…Thus, the efficiency of siderophore-mediated removal would depend on the amount of iron accessible to the siderophore, particularly in the outer layer. Studies examining siderophore-mediated iron removal from chrysotile are lacking, although many studies have examined the mechanism by which siderophores remove iron from other iron-containing minerals [38–40, 48–50]. Based on these studies, high affinity of siderophore for iron binding sites or adsorption of siderophore is a prerequisite for iron dissolution [39].…”

Section: Discussionmentioning

confidence: 99%

Siderophore-mediated iron removal from chrysotile: Implications for asbestos toxicity reduction and bioremediation

Mohanty

Gonneau

Salamatipour

et al. 2018

Journal of Hazardous Materials

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Asbestos fibers are highly toxic (Group 1 carcinogen) due to their high aspect ratio, durability, and the presence of iron. In nature, plants, fungi, and microorganisms release exudates, which can alter the physical and chemical properties of soil minerals including asbestos minerals. We examined whether exudates from bacteria and fungi at environmentally relevant concentrations can alter chrysotile, the most widely used asbestos mineral, and lower its toxicity. We monitored the release of iron from chrysotile in the presence of organic acid ligands and iron-specific siderophores derived from bacteria and fungi and measured any change in fiber toxicity toward peritoneal macrophages harvested from mice. Both fungal and bacterial siderophores increased the removal of iron from asbestos fibers. In contrast, organic acid ligands at environmentally relevant concentrations neither released iron from fibers nor helped in siderophore-mediated iron removal. Removal of plant-available or exchangeable iron did not diminish iron dissolution by both types of siderophores, which indicates that siderophores can effectively remove structural iron from chrysotile fibers. Removal of iron by siderophore lowered the fiber toxicity; fungal siderophore appears to be more effective than bacterial siderophore in lowering the toxicity. These results indicate that prolonged exposure to siderophores, not organic acids, in the soil environment decreases asbestos fiber toxicity and possibly lowers the health risks. Thus, bioremediation should be explored as a viable strategy to manage asbestos-contaminated sites such as Brownfield sites, which are currently left untreated despite dangers to surrounding communities.

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“…Chemical reagents employed were all from Sigma Aldrich, ACS grade: sodium citrate trihydrate, ≥99.0 %; disodium DL-malate, ≥95.0 %; sodium oxalate, ≥99.5 %; quercetin, HPLC ≥94.0 %; rutin (quercetin-3-O-rutinoside) hydrate, HPLC ≥94.0 %; genistein, HPLC ≥98.0 %. Soil samples were extracted for 24 h by an end-over-end shaker, since this period of time allowed to reach a steady state in the amount of extracted elements, as also reported by Zhong et al (2013). At the end of the extraction period, samples were centrifuged for 30 min at 5,445×g at 4°C.…”

Section: Mobilization Of Major and Trace Elements From Soilmentioning

confidence: 99%

“…However, again, only few examples are available on studies conducted on real soil samples. Zhong et al (2013) studied the release of Fe, Mn, and Al from an Oxysol which was greatly enhanced in the presence of the siderophore desferrioxamine-B (DFO-B). These authors found a synergistic effect between DFO-B and citric acid on the dissolution of Mn-containing minerals, while a slight competitive effect of oxalic acid on release of Mn promoted by DFO-B was observed.…”

Section: Introductionmentioning

confidence: 99%

Combined effect of organic acids and flavonoids on the mobilization of major and trace elements from soil

et al. 2015

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Combinations of different molecules usually co-exuded by plant roots in soil can significantly affect the mobilization of mineral elements from soil. The flavonoids rutin and quercetin appeared to be highly efficient in Fe and Mn mobilization from soil, being rutin about 25 times more effective than citrate in extracting Fe from an alkaline calcareous soil, and 15 times in mobilizing Mn from a slight acidic agricultural soil. Quercetin was particularly effective in mobilizing Mn from the acidic soil and 50 times more efficient than citrate. A significant synergistic effect was detected when either quercetin or rutin was combined with citrate, extracting, respectively, 1.7 and 1.5 times more Mn than what is expected by a simple combination of the two. Sorption processes on soil particles were more relevant for flavonoids than for organic acids for which microbial degradation often prevails, with the only exception of oxalate. Citrate was usually the most efficient organic acid in mobilizing major and trace elements from soil even if oxalate was a better extractant for Cu, Zn, and Ni from the alkaline soil. In the acid soil, a synergistic effect among organic acids was observed only for Mn while in alkaline soil it was observed for Si. The mechanism by which Fe is extracted by rutin in the alkaline soil is a reductive one, with one molecule of rutin being capable of mobilizing two atoms of Fe. Also for Mn in the acid soil, quercetin and rutin solubilize this element by a reductive process. However, when quercetin and rutin are combined with citrate, a complex-forming dissolution mechanism also occurs which increases the mobilization of Mn over the expected rates

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Desferrioxamine-B promoted dissolution of an Oxisol and the effect of low-molecular-weight organic acids

Cited by 11 publications

References 34 publications

Metallophores and Trace Metal Biogeochemistry

Metallophores and Trace Metal Biogeochemistry

Siderophore-mediated iron removal from chrysotile: Implications for asbestos toxicity reduction and bioremediation

Combined effect of organic acids and flavonoids on the mobilization of major and trace elements from soil

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