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gold uptake and tolerance in arabidopsis

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

Dec 21, 2011  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.

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gold uptake andtolerance in arabidopsis

Gold uptake and tolerance in Arabidopsis White Rose ...Whilst gold uptake and nanoparticle formation in plants has been studied, little research has investigated mechanisms of gold uptake. The gold uptake andtolerance in arabidopsis

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British Library EThOS: Gold uptake and tolerance in ...

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.

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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.

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Gold uptake and tolerance in Arabidopsis - CORE Reader

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Investigating the Toxicity, Uptake, Nanoparticle Formation ...

Apr 15, 2014  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.

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Cadmium uptake, translocation, and tolerance in AHA1OX ...

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, and maintained better integrity of nucleus membrane of root tips in comparison to the control plant (WT ...

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Heavy Metal Tolerance in Arabidopsis thaliana - ScienceDirect

Jan 01, 2011  An Arabidopsis homologue of the human Fe-exporting protein IREG (iron-regulated) function is assigned to Ni tolerance in Arabidopsis under Fe-deficiency conditions (Schaaf et al., 2006). Although the human protein is involved in the exporting process of excess Fe in the cells, Arabidopsis homologue localized to the tonoplast membrane.

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Platinum uptake, distribution and toxicity in Arabidopsis ...

Jan 01, 2018  Therefore this study aimed to evaluate Pt (II) uptake, distribution and toxicity in model Arabidopsis thaliana L. plants. 2. Materials and methods. 2.1. Plant material and growing conditions. Seeds of Arabidopsis thaliana L. Col 4, #N933 were purchased from the Nottingham Arabidopsis Stock Centre (NASC, UK).

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Cadmium uptake, translocation and tolerance in the ...

Sep 01, 2006  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.

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Investigating the Toxicity, Uptake, Nanoparticle Formation ...

Apr 15, 2014  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.

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Differential heavy metal tolerance of Arabidopsis halleri ...

Apr 11, 2003  Time-dependent uptake of Zn into leaf slices of Arabidopsis thaliana (open columns) and Arabidopsis halleri (closed columns). The tissue was incubated for 10 and 120 min in 100 m m ZnSO 4 and Zn contents determined after washing the slices in 10 m m CaCl 2 at 4°C. t= 0 gives the endogenous Zn contents. The data are means from six ...

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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

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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 ...

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

The inhibition of Cd uptake and translocation of the metal from root to shoot was observed, when Arabidopsis thaliana plants were treated with low temperature or a metabolic inhibitor [47 ...

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Cadmium uptake, translocation and tolerance in the ...

Most of the information available about Cd tolerance comes from studies with model plants such as Arabidopsis halleri (Zhao et al. 2006), Thlaspi caerulescens (Krämer et al. 2000), and Solanum ...

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Molecular mechanisms underlying heavy metal uptake ...

Copper uptake by pteris melanocaulon fée from a copper-gold mine in Surigao del Norte, Philippines Int J Phyto , 18 ( 2016 ) , pp. 435 - 441 , 10.1080/15226514.2015.1109603 CrossRef View Record in

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Phytoremediation and Microorganisms-Assisted ...

Mar 02, 2021  Plants limit metal uptake by manoeuvring their inner cellular metal tolerance network to set an efficient barrier against the entrance of toxic elements at the root level. To this extent, the root cell wall becomes the binding site of unwanted cations, especially of metals such as Hg that have a high affinity for the negative charges of the ...

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Uptake and Toxicity of Nanomaterials in Plants SpringerLink

Jul 14, 2017  Geisler-Lee J, Brooks M, Gerfen JR, Wang Q, Fotis C, Sparer A, Ma XM, Berg RH, Geisler M (2014) Reproductive toxicity and life history study of silver nanoparticle effect, uptake and transport in Arabidopsis thaliana. Nanomaterials(Basel) 4(2):301–318. doi:

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Yellow nutsedge WRI4 -like gene improves drought tolerance ...

Oct 31, 2020  Cuticular wax plays important role in protecting plants from drought stress. In Arabidopsis WRI4 improves drought tolerance by regulating the biosynthesis of fatty acids and cuticular wax. Cyperus esculentus (yellow nutsedge) is a tough weed found in tropical and temperate zones as well as in cooler regions. In the current study, we report the molecular cloning of a WRI4-like gene from

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Uptake, Metabolism, Accumulation and Toxicity of Cyanide ...

Feb 17, 2005  Chemicals taken up into plants may be accumulated so leading to toxic effects. Uptake and phytotoxicity of free cyanide was determined with the willow-tree transpiration test. Willow sets were grown in sand and irrigated with varying levels of cyanide (CN). Toxicity was determined by measuring transpiration. At CN concentrations below 10 mg/L, no toxic effects were observed.

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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,

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Vesicular trafficking and salinity responses in plants ...

Aug 27, 2015  Overexpression of RabG3e in Arabidopsis enhanced the uptake of endocytic tracer FM1-43 and significantly improved salt tolerance when compared with WT plants 49. This approach has been extended to other species: the overexpression of OsRab7 generates salt-resistant rice plants 50 , and the overexpression of Rab7 gene from the halophyte Prosopis ...

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Plant tissue succulence engineering improves water‐use ...

Apr 27, 2020  VvCEB1 opt-overexpressing lines also showed increased salinity tolerance due to reduced salinity uptake and dilution of internal Na + and Cl − as well as other ions. Alterations in transporter activities were further suggested by media and apoplastic acidification, hygromycin B tolerance and changes in relative transcript abundance patterns ...

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Nanoparticle Uptake in Plants: Gold Nanomaterial Localized ...

Nanoparticle Uptake in Plants: Gold Nanomaterial Localized in Roots of Arabidopsis thaliana by X-Ray Computed Nanotomography and Hyperspectral Imaging. Environmental Science and Technology, American Chemical Society, 2017, 51, pp.8692-8691. ￿10.1021/acs.est.7b01133￿. ￿hal-01566237￿

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Heavy Metal Tolerance in Arabidopsis thaliana - ScienceDirect

Jan 01, 2011  An Arabidopsis homologue of the human Fe-exporting protein IREG (iron-regulated) function is assigned to Ni tolerance in Arabidopsis under Fe-deficiency conditions (Schaaf et al., 2006). Although the human protein is involved in the exporting process of excess Fe in the cells, Arabidopsis homologue localized to the tonoplast membrane.

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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.

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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 CdCl2, AHA1OX showed a higher root elongation, accumulated more Cd, and

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Enhanced Boron Tolerance in Plants Mediated by ...

Feb 23, 2016  (a) Boron tolerance phenotype, (b) Fresh shoot weight and, (c) root length of the Arabidopsis transgenic lines 43, 51 and 60 as compared with wild type (WT) on 0 and 2.5 mM boric acid. The values ...

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Understanding and Improving Salt Tolerance in Plants

Jan 31, 2005  e indicate variation in mechanisms of salt tolerance among crop species (Table 1). creased ion uptake under hypoosmotic conditions while, Soil type and environmental factors, such as vapor their Arabidopsis homolog do not show this osmosen-pressure deficit, radiation, and temperature may further sing capacity (Liu et al., 2001). Entry of Na through

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Cadmium uptake, translocation and tolerance in the ...

Jan 01, 2006  Zinc tolerance and uptake by Arabidopsis halleri ssp. gemmifera grown in nutrient solution. Kashem MA , Singh BR , Kubota H , Sugawara R , Kitajima N , Kondo T , Kawai S Environ Sci Pollut Res Int , 17(5):1174-1176, 19 Mar 2010

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Engineered Gold Nanoparticles and Plant Adaptation Potential

Accumulation, Toxicity and Tolerance Several studies have investigated the binding of various states of gold and gold-silver-copper alloy nanoparticles in Medicago sativa, Brassica juncea and other living plant sys-tems [18, 35–38]. The uptake of gold nanoparticles and their effect on different plant systems have been studied and summarised ...

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Yellow nutsedge WRI4 -like gene improves drought tolerance ...

Oct 31, 2020  Cuticular wax plays important role in protecting plants from drought stress. In Arabidopsis WRI4 improves drought tolerance by regulating the biosynthesis of fatty acids and cuticular wax. Cyperus esculentus (yellow nutsedge) is a tough weed found in tropical and temperate zones as well as in cooler regions. In the current study, we report the molecular cloning of a WRI4-like gene from

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Low magnesium status in plants enhances tolerance to ...

Jul 18, 2011  Introduction. Mineral interactions have been demonstrated to be important for the manifestation of deficiency and toxicity in plants (Suzuki, 2005; Ward et al., 2008).The role of high magnesium (Mg) supply in alleviating aluminium (Al) (Bose et al., 2011) and cadmium (Cd) (Kashem Kawai, 2007) toxicity has already been described.Here we report a positive effect of low Mg status on

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How a Mangrove Tree Can Help to Improve the Salt Tolerance ...

Dec 04, 2020  Such overexpressing Arabidopsis lines accumulated less Na + ions in leaves compared with the mutant, while root Na + was unchanged, further indicating a role for AoCYP94B1 in the formation of an apoplastic barrier that limits salt uptake into the root vasculature for subsequent transport to the aboveground organs.

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Iron Uptake, Translocation, and Regulation in Higher ...

Iron is essential for the survival and proliferation of all plants. Higher plants have developed two distinct strategies to acquire iron, which is only slightly soluble, from the rhizosphere: the reduction strategy of nongraminaceous plants and the chelation strategy of graminaceous plants. Key molecular components—including transporters, enzymes, and chelators—have been clarified for both ...

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Polyploids exhibit higher potassium uptake and salinity ...

Dive into the research topics of 'Polyploids exhibit higher potassium uptake and salinity tolerance in Arabidopsis'. Together they form a unique fingerprint. Salt Tolerance Medicine Life Sciences 100%

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Mechanism of Isoxaben Tolerance in Agrostis palustris var ...

demonstrated that in Arabidopsis uptake of [14C]-isoxaben is not affected by the addition of either potassium cyanide or dinitrophenol (data not shown). These data suggest that uptake is entirely passive without an active transport component. Tolerance by Agrostis, measured as the effect of isox aben on glucose incorporation into cellulose, is ...

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