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Gold Uptake And Tolerance In Arabidopsis

Vacuolar Phosphate Transporter 1 (VPT1) Affects Arsenate .

Thus, mutations of genes encoding these transporters may reduce As(V) uptake and sensitivity to As(V) stress in plants. For instance, loss of function of PHT1;1 and PHT1;4, the major Pi transporters involved in Pi uptake, confers enhanced As(V) tolerance in Arabidopsis (Shin et al. 2004).

Protocol for evaluation of salt tolerance in Arabidopsis .

Root bending assays can be rapidly scored and provide either qualitative or quantitative data on seedling responses to salt stress. This protocol uses a modified version of the root bending assay to assess tolerance of Arabidopsis seedlings to different salts or osmotic agents (i.e., NaCl, KCl, LiCl, CsCl, mannitol or polyethylene glycol).

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.

Polyploids Exhibit Higher Potassium Uptake and Salinity .

Aug 09, 2013 · Polyploids Exhibit Higher Potassium Uptake and Salinity Tolerance in Arabidopsis. . concentration in Arabidopsis thaliana. Autopolyploidy also provided resistance to salinity and may represent an adaptive outcome of the enhanced K accumulation of plants with higher ploidy.

Proteasomal degradation of BRAHMA promotes Boron tolerance .

Dec 11, 2018 · Proteasomal degradation of BRAHMA promotes Boron tolerance in Arabidopsis. Takuya Sakamoto 1,2, Yayoi . Plants can control B uptake through the regulation of .

Investigating the Toxicity, Uptake, Nanoparticle Formation .

Gold nanoparticles were only observed in plants exposed to ionic gold in solution. Together, we believe our results imply that gold is taken up by the plant predominantly as an ionic form, and that plants respond to gold exposure by up-regulating genes for plant stress and down-regulating specific metal transporters to reduce gold uptake.

Functional Characterization of Date Palm Aquaporin Gene .

Recent studies on salinity tolerance in date palm revealed the discovery of salt-responsive genes including PdPIP1;2, a highly conserved aquaporin gene in plants, which was functionally characterized in this study to investigate its precise role in drought and salinity tolerance. Immunoblot assay showed a high level of PIP1 protein accumulation only in the leaves of date palm plants when grown .

Drought tolerance - Wikipedia

Drought tolerance is the ability to which a plant maintains its biomass production during arid or drought conditions. Some plants are naturally adapted to dry conditions, surviving with protection mechanisms such as desiccation tolerance, detoxification, or repair of xylem embolism. Other plants, specifically crops like corn, wheat, and rice, have become increasingly tolerant to drought with .

Cadmium uptake, translocation and tolerance in the .

Uptake of 109 Cd and 65 Zn were up-regulated, respectively, by low iron (Fe) or Zn status. A. halleri was much less tolerant to Cd than to Zn. • We conclude that A. halleri is able to hyperaccumulate Cd partly, at least, through the Zn pathway, but the mechanisms responsible for cellular Zn tolerance .

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.

The polish wheat (Triticum polonicum L.) TpSnRK2.10 and .

In Arabidopsis, AtSnRK2s regulate the expression of some metal transporters. For example, AtSnRK2.4 plays a role in the regulation of Arabidopsis tolerance to Cd; AtSnRK2.2 and AtSnRK2.3 are involved in Cd uptake and translocation. However, the functions of their homologs, TpSnRK2.10 and TpSnRK2.11 from dwarf Polish wheat are unknown.

Modulation of K+ translocation by AKT1 and AtHAK5 in .

F1000Prime Recommended Article: Modulation of K+ translocation by AKT1 and AtHAK5 in Arabidopsis plants.

NIP1;2 is a plasma membrane-localized transporter .

F1000Prime Recommended Article: NIP1;2 is a plasma membrane-localized transporter mediating aluminum uptake, translocation, and tolerance in Arabidopsis. . and overall Al tolerance in Arabidopsis. . 2 is a plasma membrane-localized transporter mediating aluminum uptake, translocation, and tolerance in Arabidopsis.

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 Article in Plant Physiology and Biochemistry 84C:189 .

Genetic Analysis of Salt Tolerance in Arabidopsis .

A large genetic screen for sos (for salt overly sensitive) mutants was performed in an attempt to isolate mutations in any gene with an sos phenotype. Our search yielded 28 new alleles of sos1, nine mutant alleles of a newly identified locus, SOS2, and one allele of a third salt tolerance locus, SOS3. The sos2 mutations, which are recessive, were mapped to the lower arm of chromosome V, ~2.3 .

Proteasomal degradation of BRAHMA promotes Boron tolerance .

Dec 11, 2018 · Proteasomal degradation of BRAHMA promotes Boron tolerance in Arabidopsis. Takuya Sakamoto 1,2, Yayoi . Plants can control B uptake through the regulation of .

Platinum uptake, distribution and toxicity in Arabidopsis .

In this study an attempt was made to evaluate Pt(II) uptake, distribution and toxicity in Arabidopsis thaliana L. plants. Arabidopsis thaliana plants were hydroponically grown with increasing Pt(II) concentrations in the range of 0.025–100 µM. Pt(II) was taken up by .

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 Article in Plant Physiology and Biochemistry 84C:189 .

Arabidopsis thaliana NIP7;1 is involved in tissue arsenic .

The Arabidopsis aquaglyceroporin NIP7;1 is involved in uptake and tolerance to the trivalent arsenic species arsenite. Here, we show that NIP7;1 is also involved in the response to pentavalent arsenate. Loss of function of NIP7;1 improved tolerance to arsenate and reduced arsenic levels in both the phloem and xylem, resulting in altered arsenic distribution between tissues.

Investigating the Toxicity, Uptake, Nanoparticle Formation .

Gold Uptake at the Genetic Level. Several studies have investigated the binding of various states of gold to root membranes,, but at the genetic level, the mechanism for gold uptake remains unclear.In Arabidopsis, heavy metal ATPases (HMAs), which translocate ions across cell or organelle membranes, have been implicated in the transport of copper and silver and these are elements that share .

Populus euphratica APYRASE2 Enhances Cold Tolerance by .

Apyrase and extracellular ATP play crucial roles in mediating plant growth and defense responses. In the cold-tolerant poplar, Populus euphratica, low temperatures up-regulate APYRASE2 (PeAPY2) expression in callus cells. We investigated the biochemical characteristics of PeAPY2 and its role in cold tolerance. We found that PeAPY2 predominantly localized to the plasma membrane, but punctate .

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. . A. TaylorGold Uptake and Tolerance in Arabidopsis. University of York (2011) Google Scholar. Vert et al., 2009.

Arabidopsis thaliana NIP7;1 is involved in tissue arsenic .

The Arabidopsis aquaglyceroporin NIP7;1 is involved in uptake and tolerance to the trivalent arsenic species arsenite. Here, we show that NIP7;1 is also involved in the response to pentavalent arsenate. Loss of function of NIP7;1 improved tolerance to arsenate and reduced arsenic levels in both the phloem and xylem, resulting in altered arsenic distribution between tissues.

Thioarsenate Toxicity and Tolerance in the Model System .

Thioarsenates form from arsenite under sulfate-reducing conditions, e.g., in rice paddy soils, and are structural analogues of arsenate. Even though rice is one of the most important sources of human arsenic intake, nothing is published about uptake, toxicity, or tolerance of thioarsenates in plants. Experiments using the model system Arabidopsis thaliana showed that monothioarsenate is less .

Drought tolerance - Wikipedia

Drought tolerance is the ability to which a plant maintains its biomass production during arid or drought conditions. Some plants are naturally adapted to dry conditions, surviving with protection mechanisms such as desiccation tolerance, detoxification, or repair of xylem embolism. Other plants, specifically crops like corn, wheat, and rice, have become increasingly tolerant to drought with .

Genetic Analysis of Salt Tolerance in Arabidopsis .

A large genetic screen for sos (for salt overly sensitive) mutants was performed in an attempt to isolate mutations in any gene with an sos phenotype. Our search yielded 28 new alleles of sos1, nine mutant alleles of a newly identified locus, SOS2, and one allele of a third salt tolerance locus, SOS3. The sos2 mutations, which are recessive, were mapped to the lower arm of chromosome V, ~2.3 .

Frontiers | Drought Response in Wheat: Key Genes and .

Abiotic stresses such as drought, heat, salinity and flooding threaten global food security. Crop genetic improvement with increased resilience to abiotic stresses is a critical component of crop breeding strategies. Wheat is an important cereal crop and a staple food source globally. Enhanced drought tolerance in wheat is critical for sustainable food production and global food security.

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 .

Cadmium uptake, translocation and tolerance in the .

Uptake of 109 Cd and 65 Zn were up-regulated, respectively, by low iron (Fe) or Zn status. A. halleri was much less tolerant to Cd than to Zn. • We conclude that A. halleri is able to hyperaccumulate Cd partly, at least, through the Zn pathway, but the mechanisms responsible for cellular Zn tolerance .

AtCPK23 functions in Arabidopsis responses to drought and .

May 31, 2007 · In consistent with the enhanced salt-tolerance by disruption of AtCPK23 expression, K + content in the cpk23 mutant was not reduced under high NaCl stress compared with wild-type plants, which indicates that the AtCPK23 may also regulate plant K +-uptake. The possible mechanisms by which AtCPK23 mediates drought and salt stresses signaling are .

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