Role of fungi in the biogeochemical fate of depleted uranium

@article{Fomina2008RoleOF,
  title={Role of fungi in the biogeochemical fate of depleted uranium},
  author={Marina A. Fomina and John M. Charnock and Stephen Hillier and Rebeca Alvarez and Francis R. Livens and Geoffrey Michael Gadd},
  journal={Current Biology},
  year={2008},
  volume={18},
  pages={R375-R377}
}
Summary The testing of depleted uranium (DU; a 97.25% U:0.75% Ti alloy) ammunition and its use in recent war campaigns in Iraq (1991 and 2003) and the Balkans (1995 and 1999) has led to dispersion of thermodynamically unstable DU metal into the environment [1–3]. Although less radioactive, DU has the same chemotoxicity as natural uranium and poses a threat to human populations [1]. Uranium tends to form stable aqueous complexes and precipitates with organic ligands [4], suggesting that living… Expand
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References

SHOWING 1-10 OF 20 REFERENCES
Geomycology: biogeochemical transformations of rocks, minerals, metals and radionuclides by fungi, bioweathering and bioremediation.
  • G. Gadd
  • Biology, Medicine
  • Mycological research
  • 2007
TLDR
This article seeks to emphasize the fundamental importance of fungi in several key areas including organic and inorganic transformations and element cycling, rock and mineral transformations, bioweathering, mycogenic mineral formation, fungal-clay interactions, metal-fungal interactions, and the significance of such processes in the environment and their relevance to areas of environmental biotechnology such as bioremediation. Expand
Properties, use and health effects of depleted uranium (DU): a general overview.
Depleted uranium (DU), a waste product of uranium enrichment, has several civilian and military applications. It was used as armor-piercing ammunition in international military conflicts and wasExpand
Phosphate based immobilization of uranium in an oxidizing bedrock aquifer
The unmined Coles Hill U deposit of south central Virginia represents a natural setting where U is stabilized by phosphate mineral precipitation in an oxidizing bedrock aquifer. Drill cores from theExpand
Chemical and mineralogical transformations caused by weathering in anti-tank DU penetrators ("the silver bullets") discharged during the Kosovo war.
TLDR
The Djakovica dart shows evident oxidation and leaching processes, progressively releasing mobile uranium forms, as uranium will be progressively dispersed far from the impact sites, at a rate controlled by the presence of effective fixing mechanisms, it is necessary to maintain long term geochemical control of water pollution within the battlefield surroundings. Expand
Oxidation states of uranium in depleted uranium particles from Kuwait.
TLDR
Environmental or health impact assessments for areas affected by DU munitions should take into account the presence of respiratory UO(2), U(3)O(8) and even UO (3) particles, their corresponding weathering rates and the subsequent mobilisation of U from oxidized DU particles. Expand
Corrosion of Depleted Uranium in an Arid Environment: Soil-Geomorphology, SEM/EDS, XRD, and Electron Microprobe Analyses
Corrosion of anthropogenic uranium in natural environments is not well understood, but is important for determining potential health risks and mobility in the environment. A site in the southwesternExpand
Cutaneous respiration and the origin of the modern Amphibia
TLDR
It seems very likely that the modern amphibians are descended from the gymnarthrids, or from some similar, closely related group of microsaurs, if the microsaur-lissamphibian line of evolution diverged from the labyrinthodont-reptilian line at a very early stage in tetrapod history. Expand
Discovery of the first Asian plethodontid salamander
TLDR
The discovery of the first Asian plethodontid salamander, from montane woodlands in southwestern Korea, is reported, which differs osteologically from putative relatives, especially with respect to the tongue (attached protrusible) and the derived tarsus. Expand
The Origin of the Lungless Salamanders (Amphibia: Plethodontidae)
TLDR
It is suggested that proto-plethodontids may have been only semi-aquatic or terrestrial, and supporting evidence includes a plethodonid-like reliance on cutaneous respiration in certain extant ambystomatid salamanders. Expand
A new genus of lungless tetrapod: a radically divergent caecilian (Amphibia: Gymnophiona)
TLDR
This work reports lunglessness in another group of tetrapods, the poorly known tropical caecilians, and describes Typhlonectes eiselti, a lungless, aquatic caecilian from South America known only from the single holotype specimen, NMW 9144. Expand
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