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Title of Journal: Biometals

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Abbravation: BioMetals

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Springer Netherlands

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DOI

10.1006/icar.2000.6347

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1572-8773

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Mercury toxicity molecular response and tolerance

Authors: Jian Chen Zhi Min Yang
Publish Date: 2012/05/26
Volume: 25, Issue: 5, Pages: 847-857
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Abstract

Mercury Hg contamination in soils has become a great concern as a result of its natural release and anthropogenic activities This review presents broad aspects of our recent understanding of mercury contamination and toxicology in plants including source of Hg contamination toxicology tolerant regulation in plants and minimization strategy We first introduced the sources of mercury contamination in soils Mercury exists in different forms but ionic mercury Hg2+ is the predominant form in soils and readily absorbed by plants The second issue to be discussed is the uptake transport and localization of Hg2+ in plants Mercury accumulated in plants evokes severe phytotoxicity and impairs numerous metabolic processes including nutrient uptake water status and photosynthesis The mechanisms of mercuryinduced toxicology molecular response and gene networks for regulating plant tolerance will be reviewed In the case of Hg recent much progress has been made in profiling of transcriptome and more importantly uncovering a group of small RNAs that potentially mediates plant tolerance to Hg Several newly discovered signaling molecules such as nitric oxide and carbon monoxide have now been described as regulators of plant tolerance to Hg A recently emerged strategy namely selection and breeding of plant cultivars to minimize Hg or other metals accumulation will be discussed in the last part of the review


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  2. In vitro heme and non-heme iron capture from hemoglobin, myoglobin and ferritin by bovine lactoferrin and implications for suppression of reactive oxygen species in vivo
  3. A role for ferritin in the antioxidant system in coffee cell cultures
  4. Inactivation of bacterial and viral biothreat agents on metallic copper surfaces
  5. Investigation of metal sorption behavior of Slp1 from Lysinibacillus sphaericus JG-B53: a combined study using QCM-D, ICP-MS and AFM
  6. Magnetic susceptibility and isothermal remanent magnetization in human tissues: a study case
  7. Heavy metal resistance in Cupriavidus metallidurans CH34 is governed by an intricate transcriptional network
  8. Fluorescence detection of intracellular cadmium with Leadmium Green
  9. Metal concentrations in hair of patients with various head and neck cancers as a diagnostic aid
  10. Effect of oxygen free radicals and nitric oxide on apoptosis of immune organ induced by selenium deficiency in chickens
  11. Bone and faecal minerals and scanning electron microscopic assessments of femur in rats fed phytic acid extract from sweet potato ( Ipomoea batatas )
  12. Ag nanoparticles generated using bio-reduction and -coating cause microbial killing without cell lysis
  13. XAS analysis of a nanostructured iron polysaccharide produced anaerobically by a strain of Klebsiella oxytoca
  14. Nitrate reduction associated with respiration in Sinorhizobium meliloti 2011 is performed by a membrane-bound molybdoenzyme
  15. Investigation of ascorbate-mediated iron release from ferric phytosiderophores in the presence of nicotianamine
  16. The ins and outs of biological zinc sites
  17. After oxidation, zinc nanoparticles lose their ability to enhance responses to odorants
  18. Analytical studies on the incorporation of aluminium in the cell walls of the marine diatom Stephanopyxis turris
  19. Shotgun metabolomic approach based on mass spectrometry for hepatic mitochondria of mice under arsenic exposure
  20. Arsenic trioxide versus tetraarsenic oxide in biomedical research: misunderstandings and misinterpretations

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