Arsenic uptake by plants is species-specific and its level in terrestrial of uncontaminated sites ranged from 0.009 to 1.5 mg/kg. Plants with high metal or metalloid capability their biomass are called hyperaccumulators. The most efficient arsenic (As) hyperaccumulator belongs Pteridaceae species Pteris vittata L. Pityrogramma calomelanos L., both can accumulate more than 8000 mg/kg As above-gr...

Metal hyperaccumulating plants are able to accumulate exceptionally high concentrations of metals, such as zinc, nickel, or cadmium, in their aerial tissues. These metals reach concentrations that would be toxic to most other plant species. This trait has evolved multiple times independently in the plant kingdom. Recent studies have provided new insight into the ecological and evolutionary sign...

Noccaea brachypetala is a close relative of caerulescens , model plant species used in metal hyperaccumulation studies. In previous survey the Catalan Pyrenees, we found two occidental and oriental N. populations growing on non-metalliferous soils, with accumulated high concentrations Cd Zn. Our hypothesis was that microbiome companion roots may influence ability these plants to absorb metals. ...

It has been proposed that non-protein thiols and organic acids play a major role in cadmium phytoavailability distribution plants. In the Cd-hyperaccumulator Solanum nigrum non-accumulator melongena, of these ligands accumulation detoxification mechanisms Cd are debated. this study, we used X-ray absorption spectroscopy to investigate speciation plants (roots, stem, leaves) soils for their cult...

Soils in many parts of the world are contaminated with heavy metals, leading to multiple, deleterious effects on plants and threats to world food production efficiency. Cadmium (Cd) is one such metal, being toxic at relatively low concentrations as it is readily absorbed and translocated in plants. Sulfur-rich compounds are critical to the impact of Cd toxicity, enabling plants to increase thei...

Human industry, farming, and waste disposal practices have resulted in the large-scale contamination of soil and water with organic compounds and heavy metals, with detrimental effects on ecosystems and human health. Conventional soil remediation methods are expensive and often involve the storage of soil in designated areas, postponing rather than solving the problem. In the last decade, the p...

1 Heavy metal tolerance and accumulation in Matthiola flavida, a novel Iranian lead hyperaccumulator 2 The candidate was financially supported by a scholarship from the

We compared root responses of the Ni-hyperaccumulator plant Berkheya coddii Rossler with the non-accumulator plant Cicer arietinum L. to Ni heterogeneity in soil. We grew plants in growth containers filled with control soil, homogeneously spiked, and heterogeneously spiked soil with Ni concentrations of 62 and 125 mg kg(-1). Neutron radiography (NR) was used to observe the root distribution and...