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For example, an early study found that Paenibacillus polymyxa increased drought tolerance in Arabidopsis thaliana by regulating the expression of gene ERD15 involved in the drought-stress response 24.
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Arabidopsis was found to remove gold from soil and contained similar concentrations to those in previously tested species. Gold uptake from liquid media was also investigated. …
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Our results showed that ethylene is. important in tolerance to low potassium and for changes in both root hair and primary root growth in Arabidopsis thaliana. We show that ethylene acts upstream ...
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When heterologously expressed in Arabidopsis, only HmVALT enhances Al tolerance, suggesting that Al may enter the Arabidopsis root cytosol via an unidentified native PM transporter . Thus, in the present study, we investigated the role of the Arabidopsis nodulin 26-like intrinsic protein (NIP) subfamily, the closest homologs of …
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Role of Ethylene in Plant Growth under Low K + Stress. A previous study showed that potassium deprivation in Arabidopsis roots stimulates ethylene production and the upregulation of genes that are involved in ethylene biosynthesis and signaling (Shin and Schachtman, 2004).To investigate the possible role of ethylene in response to low …
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Magnesium (Mg) is one of the essential nutrients for all living organisms. Plants acquire Mg from the environment and distribute within their bodies in the ionic form via Mg 2+-permeable transporters.In Arabidopsis, the plasma membrane-localized magnesium transporter MGT6 mediates Mg 2+ uptake under Mg-limited conditions, and …
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Arsenic, a non-nutrient metalloid is toxic to plants but many details on the physiology of plant adaptation to arsenic stress are not well understood. This work provides new insights about the role of sulfur assimilation in arsenate uptake, growth and arsenic tolerance. Research reported here indica …
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Pollen tube growth is an essential step leading to reproductive success in flowering plants, in which vesicular trafficking plays a key role. Vesicular trafficking from …
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NIP1;2 is a plasma membrane-localized transporter mediating aluminum uptake, translocation, and tolerance in Arabidopsis April 2017 Proceedings of the National Academy of Sciences 114(19):201618557
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A previous study showed that potassium deprivation in Arabidopsis roots stimulates ethylene production and the upregulation of genes that are involved in ethylene biosynthesis and signaling (Shin and Schachtman, 2004).To investigate the possible role of ethylene in response to low potassium, we analyzed the low K + stress sensitivity of …
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Our study reveales the positive functional roles and the molecular mechanism of exogenous Cys on the Hg uptake and tolerance in Arabidopsis and provides a new strategy for the phytoremediation of Hg-contaminated soils. Data Availability Statement. The datasets presented in this study can be found in online repositories.
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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. Here …
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Chao et al. (p. 658, published online 25 July) identified accessions of the model plant Arabidopsis thaliana with naturally doubled genomes and found that the cytotype of the root, but not shoot, in these natural, as well as in artificially induced, polyploid plants appears to confer increased salt tolerance by regulating leaf potassium …
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Numerous studies have focused on identifying metallophyte plants that are capable of uptake, translocation and tolerance of HM (Peer et al., 2003; Zhao ... it is widely distributed and generally found associated with metal ores such as gold, copper and lead (Srivastava ... Arabidopsis helleri (syn. Cardaminopsis halleri), Arabisdopsis ...
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Gold uptake and tolerance in Arabidopsis Gold is a precious metal with a variety of industrial uses. The gold mining process is often incomplete, and discarded mine tailings …
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In Arabidopsis, FER-like iron deficiency-induced transcription factor (FIT) plays a key role in inducing Fe uptake genes in roots in response to Fe limitation (7–9). FIT is an ortholog of a basic helix–loop–helix (bHLH) …
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In this mini review, we broadly discuss the different Zn tolerance mechanisms and then focus on controlled Zn uptake in A. halleri. Members of the ZRT/IRT-like protein (ZIP) family of metal transporters are mainly regulated by Zn and are involved in Zn uptake. A few members of the ZIP family, such as IRT1 and IRT2, are regulated by iron (Fe ...
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In this mini review, we broadly discuss the different Zn tolerance mechanisms and then focus on controlled Zn uptake in A. halleri. Members of the ZRT/IRT-like protein (ZIP) family of metal transporters are mainly regulated by Zn and are involved in Zn uptake. A few members of the ZIP family, such as IRT1 and IRT2, are regulated by iron (Fe ...
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Studies based on examining the transcriptional perturbations associated with ionic Au exposure in Arabidopsis revealed the upregulation of a number of stress …
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Abstract. 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 the root, and not the genotype, determined the majority of heritable natural variation in leaf potassium (K) concentration in Arabidopsis thaliana.
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The results measuring uptake of gold by Arabidopsis from hydroponic culture (Figure 2B and 2H) are the mean from five biological …
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A bZIP transcription factor from Brassica juncea (BjCdR15) was isolated by the cDNA-amplified fragment length polymorphism technique after cadmium treatment.Sequence analysis indicated high similarity between BjCdR15 and Arabidopsis TGA3. In Arabidopsis, TGA3 transcription is also induced by cadmium; hence, we …
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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 systems [18, 35–38].The uptake of gold nanoparticles and their effect on different plant systems have been studied and …
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Metal exclusion-mediating HM tolerance is regulated by HMA4 and HMA5. HMA4 and HMA5 have been identified as critical genes for Cd tolerance in typical Cd-hyperaccumulating species, Arabidopsis halleri ( Hanikenne et al., 2008 ), and in some Cu hypersensitive accessions of A. thaliana ( Kobayashi et al., 2008 ).
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In this study, we investigated the effects of exogenous Cys on Hg uptake in the seedlings, roots, and shoots of Arabidopsis throughout 6 and 36 h of Hg exposure and on the regulation of Hg ...
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This is the first study using an integrated approach to understand the in planta biotransformation of KAuCl4 into AuNPs, and demonstrated the role of plant hormone auxin in determining the Au induced root system architecture. A large number of plants have been tested and exploited in search of a green chemistry approach for the fabrication of …
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ZAT10 plays dual roles in cadmium uptake and detoxification in Arabidopsis. FRONT PLANT SCI . 2022: ... Role of Fe-responsive genes in bioreduction and transport of ionic gold to roots of Arabidopsis thaliana during synthesis of gold nanoparticles ... Co-overexpression FIT with AtbHLH38 or AtbHLH39 in Arabidopsis …
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Glutathione plays an essential role in nitric oxide-mediated iron-deficiency signaling and iron-deficiency tolerance in Arabidopsis Plant J. 2015 Nov;84 ... pad2 and cad2 accumulated lower levels of Fe than the wild type. The key genes involved in Fe uptake, including IRT1, FRO2 and FIT, are expressed at low levels in zir1; however, a split ...
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A number of above mentioned metals transporters has been shown to be involved in metal uptake, homeostasis and tolerance in plants. ... Saumitou-Laprade P, Verbruggen N (2007) A major quantitative trait locus for cadmium tolerance in Arabidopsis halleri colocalizes with HMA4, a gene encoding a heavy metal ATPase. Plant Physiol …
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