gold uptake and tolerance in arabidopsis

gold uptake and tolerance in arabidopsis

  • Gold uptake and tolerance in Arabidopsis - White Rose ...

    The aims of this study were therefore to characterise gold uptake and nanoparticle formation in the model plant species Arabidopsis thaliana and subsequently investigate the transcriptional response to gold to identify mechanisms of uptake and tolerance. A number of approaches were used to investigate the gold tolerance and uptake by Arabidopsis.

  • Gold uptake and tolerance in Arabidopsis - CORE

    Gold uptake and tolerance in Arabidopsis . By Andrew Taylor. Download PDF (25 MB) Abstract. Gold is a precious metal with a variety of industrial uses. The gold mining process is often incomplete, and discarded mine tailings contain quantities of gold uneconomical for conventional extraction.

  • 作者: Andrew Taylor
  • Title: Gold uptake and tolerance in Arabidopsis

    The aims of this study were therefore to characterise gold uptake and nanoparticle formation in the model plant species Arabidopsis thaliana and subsequently investigate the transcriptional response to gold to identify mechanisms of uptake and tolerance. A number of approaches were used to investigate the gold tolerance and uptake by Arabidopsis.

  • Cited by: 2
  • Polyploids Exhibit Higher Potassium Uptake and Salinity ...

    Aug 09, 2013  Polyploids Exhibit Higher Potassium Uptake and Salinity Tolerance in Arabidopsis. By Dai-Yin Chao, Brian Dilkes, Hongbing Luo, Alex Douglas, Elena Yakubova, Brett Lahner, David E. Salt. Science 09 Aug 2013: 658-659 . Certain thale cress plants collected in the wild contain a duplicated genome and can cope with salty soil.

  • Cited by: 180
  • Gold uptake and tolerance in Arabidopsis - CORE Reader

    Enter the password to open this PDF file: Cancel OK. File name:-

  • Arsenic tolerance in Arabidopsis is mediated by two ABCC ...

    Dec 07, 2010  Arsenic tolerance in Arabidopsis is mediated by two ABCC-type phytochelatin transporters Won-Yong Song , a, b, 1 Jiyoung Park , a, 1 David G. Mendoza-Cózatl , c, 1 Marianne Suter-Grotemeyer , d Donghwan Shim , a Stefan Hörtensteiner , b Markus Geisler , b Barbara Weder , b Philip A. Rea , e Doris Rentsch , d Julian I. Schroeder , c, 2, 3 ...

  • Natural variation in a polyamine transporter determines ...

    Apr 17, 2012  Natural Variation in PQ Tolerance in Arabidopsis Accessions.. To identify the loci responsible for the natural variation in PA/PQ transport, Arabidopsis accessions showing alterations in PA/PQ tolerance were screened for primary root growth in PA- or PQ-containing media. Whereas none of the accessions examined displayed PA tolerance, several accessions, such as Nos-d, Est-1, Lov

  • Role of Fe-responsive genes in bioreduction and transport ...

    Role of Fe-responsive genes in bioreduction and transport of ionic gold to roots of Arabidopsis thaliana during synthesis of gold nanoparticles. ... Fe deficiency-mediated elevated gold content. Wild-type Arabidopsis seedlings were grown hydroponically and treated with ... A. TaylorGold Uptake and Tolerance in Arabidopsis. University of York (2011)

  • (PDF) Polyploids Exhibit Higher Potassium Uptake and ...

    Polyploids Exhibit Higher Potassium Uptake and Salinity Tolerance in Arabidopsis Article (PDF Available) in Science 341(6146) July 2013 with 274 Reads How we measure 'reads'

  • NIP1;2 is a plasma membrane-localized transporter ...

    NIP1;2 is a plasma membrane-localized transporter mediating aluminum uptake, translocation, and tolerance in Arabidopsis Yuqi Wanga, Ruihong Lia,b, Demou Lia,c, Xiaomin Jia a, Dangwei Zhoua,d, Jianyong Lia,e, Sangbom M. Lyi , Siyu Houa,f, Yulan Huanga,g, Leon V. Kochiana,h, and Jiping Liua,1 aRobert W. Holley Center for Agriculture and Health, US Department of Agriculture, Agricultural ...

  • Selective chemical binding enhances cesium tolerance in ...

    In a model plant, Arabidopsis thaliana, members of the KUP family, HIGH AFFINITY K + TRANSPORTER5 (HAK5) and KUP9 have been indicated to be involved in Cs + uptake 4,5 and a change in amino acids ...

  • (PDF) Polyploids Exhibit Higher Potassium Uptake and ...

    Polyploids Exhibit Higher Potassium Uptake and Salinity Tolerance in Arabidopsis Article (PDF Available) in Science 341(6146) July 2013 with 274 Reads How we measure 'reads'

  • Versatile roles of aquaporin in physiological processes ...

    For example, tolerance to higher soil boron in barley is mediated by the downregulation of HvNIP2;1 in the roots to reduce boron uptake (Schnurbusch et al., 2010). Likely to NIPs, XIPs are also not highly permeable to water and facilitate the transport of organic substances and small metalloid including boron ( Bienert et al., 2011 ).

  • Ethylene Mediates Response and Tolerance to Potassium ...

    Ethylene Biosynthesis and Action Blockers Reduce the K + Starvation-Induced ROS Production in Roots. Potassium starvation induces an increase in ROS in Arabidopsis roots, which has been implicated in regulating gene transcription in response to low concentrations of K + (Shin and Schachtman, 2004).To test whether there is a relationship between ethylene and low K +-induced ROS production, we ...

  • Cadmium Uptake, Translocation, and Tolerance in AHA1OX ...

    Mar 16, 2010  Information on cadmium (Cd) uptake and transport is essential to understand better the physiology of Cd tolerance in plants. In this study, Cd uptake, translocation, and tolerance were investigated in AHA1 (Arabidopsis plasma membrane H +-ATPase gene) overexpressed plants.Exposed to 10 µM CdCl 2, AHA1OX showed a higher root elongation, accumulated more Cd,

  • NIP1;2 is a plasma membrane-localized transporter ...

    Aluminum (Al) toxicity is a major constraint for crops grown on acid soils. Various plant species have adopted an Al exclusion/avoidance mechanism and/or internal tolerance mechanisms to ameliorate Al toxicity. In Arabidopsis , the root organic acid exudation-based Al exclusion mechanism has been well characterized; however, no evidence for an internal Al tolerance mechanism has been reported.

  • WRKY6 Transcription Factor Restricts Arsenate Uptake and ...

    The pht1;1 pht1;4 double mutant has a notable As(V) tolerance phenotype, indicating that these two members of the Pi transporter family contribute to As(V) uptake in Arabidopsis (Shin et al., 2004). Some species restrict phosphate uptake as an adaptive response in As(V) tolerance ( Meharg and Macnair, 1990 ; Murota et al., 2012 ).

  • A role for the AtMTP11 gene of Arabidopsis in manganese ...

    The Arabidopsis AtMTP family of genes encode proteins of the cation diffusion facilitator (CDF) family, with several members having roles in metal tolerances. Four of the 11 proteins in the family form a distinct cluster on a phylogenetic tree and are closely related to ShMTP8, a CDF identified in the tropical legume Stylosanthes hamata that is implicated in the transport of Mn 2+ into the ...

  • (PDF) Cadmium Uptake, Translocation, and Tolerance in ...

    Cadmium Uptake, Translocation, and Tolerance 229 sterilization, Arabidopsis seeds of 80 to 100 were planted in 1/6 MS solution with volume of 140 ml for 7 days, and then submitted to different ...

  • Cadmium uptake, translocation and tolerance in the ...

    Arabidopsis halleri is a well‐known zinc (Zn) hyperaccumulator, but its status as a cadmium (Cd) hyperaccumulator is less certain. Here, we investigated whether A. halleri can hyperaccumulate Cd and whether Cd is transported via the Zn pathway.. Growth and Cd and Zn uptake were determined in hydroponic experiments with different Cd and Zn concentrations.

  • Uptake and Distribution of Ultrasmall Anatase TiO2 ...

    While few publications have documented the uptake of nanoparticles in plants, this is the first study describing uptake and distribution of the ultrasmall anatase TiO2 in the plant model system Arabidopsis. We modified the nanoparticle surface with Alizarin red S and sucrose and demonstrated that nanoconjugates traversed cell walls, entered into plant cells, and accumulated in specific ...

  • RD20, a Stress-Inducible Caleosin, Participates in ...

    Yann Aubert, Denis Vile, Marjorie Pervent, Didier Aldon, Benoit Ranty, Thierry Simonneau, Alain Vavasseur, Jean-Philippe Galaud, RD20, a Stress-Inducible Caleosin, Participates in Stomatal Control, Transpiration and Drought Tolerance in Arabidopsis thaliana, Plant and Cell Physiology, Volume 51, Issue 12, December 2010, Pages 1975–1987, https ...

  • ars1, an Arabidopsis mutant exhibiting increased tolerance ...

    Aug 12, 2003  ars1 , an Arabidopsis mutant exhibiting increased tolerance to arsenate and increased phosphate uptake David A. Lee Division of Biology, Cell and Developmental Biology Section, and Center for Molecular Genetics, University of California, San Diego, 9500

  • Arsenic Uptake, Transport and Storage in Plants ...

    Arsenic Uptake, Transport and Storage in Plants. Project Leader: Mary Lou Guerinot, Ph.D. ... Recent studies show that both rice and Arabidopsis thaliana roots actively efflux intracellular arsenic back into the soil, ... responsible for arsenic tolerance. These QTL, together with the cell-type specific expression data, provide two distinct ...

  • Uptake and Distribution of Ultrasmall Anatase TiO2 ...

    While few publications have documented the uptake of nanoparticles in plants, this is the first study describing uptake and distribution of the ultrasmall anatase TiO2 in the plant model system Arabidopsis. We modified the nanoparticle surface with Alizarin red S and sucrose and demonstrated that nanoconjugates traversed cell walls, entered into plant cells, and accumulated in specific ...

  • RD20, a Stress-Inducible Caleosin, Participates in ...

    Yann Aubert, Denis Vile, Marjorie Pervent, Didier Aldon, Benoit Ranty, Thierry Simonneau, Alain Vavasseur, Jean-Philippe Galaud, RD20, a Stress-Inducible Caleosin, Participates in Stomatal Control, Transpiration and Drought Tolerance in Arabidopsis thaliana, Plant and Cell Physiology, Volume 51, Issue 12, December 2010, Pages 1975–1987, https ...

  • ars1, an Arabidopsis mutant exhibiting increased tolerance ...

    Aug 12, 2003  ars1 , an Arabidopsis mutant exhibiting increased tolerance to arsenate and increased phosphate uptake David A. Lee Division of Biology, Cell and Developmental Biology Section, and Center for Molecular Genetics, University of California, San Diego, 9500

  • Arsenic Uptake, Transport and Storage in Plants ...

    Arsenic Uptake, Transport and Storage in Plants. Project Leader: Mary Lou Guerinot, Ph.D. ... Recent studies show that both rice and Arabidopsis thaliana roots actively efflux intracellular arsenic back into the soil, ... responsible for arsenic tolerance. These QTL, together with the cell-type specific expression data, provide two distinct ...

  • Cadmium uptake, translocation and tolerance in the ...

    Arabidopsis halleri is a well‐known zinc (Zn) hyperaccumulator, but its status as a cadmium (Cd) hyperaccumulator is less certain. Here, we investigated whether A. halleri can hyperaccumulate Cd and whether Cd is transported via the Zn pathway.. Growth and Cd and Zn uptake were determined in hydroponic experiments with different Cd and Zn concentrations.

  • Investigating the Toxicity, Uptake, Nanoparticle Formation ...

    We have studied the physiological and genetic responses of Arabidopsis thaliana L. (Arabidopsis) to gold. The root lengths of Arabidopsis seedlings grown on nutrient agar plates containing 100 mg/L gold were reduced by 75%. Oxidized gold was subsequently found in roots and shoots of these plants, but gold nanoparticles (reduced gold) were only observed in the root tissues.

  • Cellular mechanisms for heavy metal detoxification and ...

    Jan 01, 2002  Chelation of metals in the cytosol by high‐affinity ligands is potentially a very important mechanism of heavy‐metal detoxification and tolerance. Potential ligands include amino acids and organic acids, and two classes of peptides, the phytochelatins and

  • Investigating the toxicity, uptake, nanoparticle formation ...

    Apr 15, 2014  Gold Uptake from Liquid Medium by Arabidopsis. To investigate gold uptake by Arabidopsis, plants were grown in liquid culture. After 3 weeks of growth, the plants had produced predominantly shoot and leaf tissues, with approximately 5% dry weight comprising root tissues.

  • Natural Genetic Variation of Freezing Tolerance in Arabidopsis

    Arabidopsis (Arabidopsis thaliana) is a widely spread small annual weed of the mustard family (Cruciferae) that is native to Europe and central Asia (for review, see Koornneef et al., 2004).Its exposure to a wide range of climatic conditions across its latitudinal range of 68°N to 0°, and its adoption as the major model plant, make it ideal for studying natural variation of adaptive traits ...

  • Sodium Uptake in Arabidopsis Roots Is Regulated by Cyclic ...

    Sodium uptake from the soil is a major cause of salinity toxicity in plants, yet little is known about the mechanisms that underlie Na+ influx. We have characterized voltage independent channels (VICs) in Arabidopsis roots that are thought to contribute to Na+ entry. VICs showed no selectivity among monovalent cations, and their gating was found to be voltage independent.

  • Nanoparticle Uptake in Plants: Gold Nanomaterial Localized ...

    Terrestrial plants can internalize and translocate nanoparticles (NPs). However, direct evidence for the processes driving the NP uptake and distribution in plants is scarce at the cellular level. Here, NP-root interactions were investigated after 10 days of exposure of Arabidopsis thaliana to 10 mgL–1 of negatively or positively charged gold NPs (∼12 nm) in gels.

  • Gold Uptake And Tolerance - Steampot

    Gold Uptake And Tolerance. Boxer gold is the only new generation pre-emergent herbicide to offer the flexibility of weed control in wheat, barley and durum wheat.Field trials and tolerance tests have shown crop safety equivalent to trifluralin.

  • Polyploids Exhibit Higher Potassium Uptake and Salinity ...

    Uptake and Salinity Tolerance in Arabidopsis Dai-Yin Chao,1 Brian Dilkes, 2Hongbing Luo, Alex Douglas,1 Elena Yakubova,2 Brett Lahner,2 David E. Salt1* Genome duplication (or polyploidization) has occurred throughout plant evolutionary history and is thought to have driven the adaptive radiation of plants. We found that the cytotype of

  • A polarly localized transporter for efficient manganese ...

    Manganese is an essential metal for plant growth. A number of transporters involved in the uptake of manganese from soils, and its translocation to the shoot, have been identified in Arabidopsis ...