scholarly journals Metal accumulation in tobacco expressing Arabidopsis halleri metal hyperaccumulation gene depends on external supply

2010 ◽  
Vol 61 (11) ◽  
pp. 3057-3067 ◽  
Author(s):  
A. Barabasz ◽  
U. Kramer ◽  
M. Hanikenne ◽  
J. Rudzka ◽  
D. M. Antosiewicz
Keyword(s):  
Metal Accumulation ◽  
Arabidopsis Halleri ◽  
Metal Hyperaccumulation

scholarly journals Arabidopsis halleri: a perennial model system for studying population differentiation and local adaptation

AoB Plants ◽  
2019 ◽  
Vol 11 (6) ◽  
Author(s):  
Mie N Honjo ◽  
Hiroshi Kudoh
Keyword(s):  
Local Adaptation ◽  
Population Differentiation ◽  
Heavy Metal Contamination ◽  
Model System ◽  
Ultraviolet B ◽  
Phenotypic Trait ◽  
European Alps ◽  
Arabidopsis Halleri ◽  
Metal Hyperaccumulation ◽  
Study Population

Abstract Local adaptation is assumed to occur when populations differ in a phenotypic trait or a set of traits, and such variation has a genetic basis. Here, we introduce Arabidopsis halleri and its life history as a perennial model system to study population differentiation and local adaptation. Studies on altitudinal adaptation have been conducted in two regions: Mt. Ibuki in Japan and the European Alps. Several studies have demonstrated altitudinal adaptation in ultraviolet-B (UV-B) tolerance, leaf water repellency against spring frost and anti-herbivore defences. Studies on population differentiation in A. halleri have also focused on metal hyperaccumulation and tolerance to heavy metal contamination. In these study systems, genome scans to identify candidate genes under selection have been applied. Lastly, we briefly discuss how RNA-Seq can broaden phenotypic space and serve as a link to underlying mechanisms. In conclusion, A. halleri provides us with opportunities to study population differentiation and local adaptation, and relate these to the genetic systems underlying target functional traits.

Metal accumulation by Arabidopsis halleri subsp. gemmifera at a limestone mining site

2015 ◽  
Vol 63 (2) ◽  
pp. 134 ◽  
Author(s):  
Aki Kosugi ◽  
Jun Tamaru ◽  
Kazumi Gotou ◽  
Hazuka Y. Furihata ◽  
Akifumi Shimizu ◽  
...  
Keyword(s):  
Calcareous Soil ◽  
Metal Accumulation ◽  
Rhizosphere Soil ◽  
Sampling Site ◽  
Calcareous Soils ◽  
Soil Samples ◽  
Arabidopsis Halleri ◽  
Soil Factors ◽  
Mining Site ◽  
Zn Concentration

Arabidopsis halleri subsp. gemmifera, a close wild relative of A. thaliana in eastern Asia, is an important model species of Brassicaceae used to study cadmium (Cd) and zinc (Zn) tolerance and hyperaccumulation in plants. To investigate the effects of soil factors on metal accumulation in this plant, we collected plants and rhizosphere soil samples from a limestone mining site on Mount Ibuki, and compared them with those collected from non-calcareous soil in Japan. Irrespective of the sampling site, all the plants efficiently accumulated Cd in shoot tissues. The plants growing on non-calcareous soil also accumulated Zn in shoot tissues, but shoot Zn concentration in plants growing on calcareous soils was below the level required for hyperaccumulators. The pH of calcareous soil samples was between 7.68 and 8.21. Total Zn contents were similar in calcareous and non-calcareous soils, but the amounts of Zn extractable by 0.1 M HCl were lower in calcareous than in non-calcareous soil. These results indicate that the properties of calcareous soil affect metal accumulation in plants.

Adaptation of Arabidopsis halleri to extreme metal pollution through limited metal accumulation involves changes in cell wall composition and metal homeostasis

2021 ◽  
Author(s):  
Massimiliano Corso ◽  
Xinhui An ◽  
Catherine Yvonne Jones ◽  
Verónica Gonzalez‐Doblas ◽  
M. Sol Schvartzman ◽  
...  
Keyword(s):  
Cell Wall ◽  
Metal Pollution ◽  
Metal Accumulation ◽  
Metal Homeostasis ◽  
Cell Wall Composition ◽  
Arabidopsis Halleri ◽  
Extreme Metal

Drug Design of Inhibitors of Alzheimer’s Disease (AD): POM and DFT Analyses of Cholinesterase Inhibitory Activity of β-amino di-Carbonyl Derivatives

2019 ◽  
Vol 19 (8) ◽  
pp. 688-705
Author(s):  
Taibi Ben Hadda ◽  
Abdur Rauf ◽  
Hsaine Zgou ◽  
Fatma Sezer Senol ◽  
Ilkay Erdogan Orhan ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cholinesterase Inhibitors ◽  
Metal Accumulation ◽  
Microtiter Plate ◽  
Metal Chelation ◽  
Carbonyl Derivatives ◽  
Cholinesterase Inhibitory Activity ◽  
Inhibitory Potential

Background:Since deficit of acetylcholine has been evidenced in the Alzheimer’s disease (AD) patients, cholinesterase inhibitors are currently the most specified drug category for the remediation of AD.Method:In the present study, 16 compounds (1-16) with dicarbonyl skeletons have been synthesized and tested for their inhibitory potential in vitro against AChE and BChE using ELISA microtiter plate assays at 100 μg/mL. Since metal accumulation is related to AD, the compounds were also tested for their metal-chelation capacity.Results and Conclusion:All the investigated dicarbonyl compounds exerted none or lower than 30% inhibition against both cholinesterases, whereas compounds 2, 8 and 11 showed 37, 42, 41% of inhibition towards BChE, being the most active. The highest metal-chelation capacity was observed with compound 8 (53.58 ± 2.06%). POM and DFT analyses are in good harmonization with experimental data.

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