Figure 4 - available via license: CC BY
Content may be subject to copyright.
Cr (A) and Ni (B) concentrations in the different plant tissues from each sampling site. Each value represents the mean of three replicate measurements ± SD. Different lowercase letters indicate significant differences between different plant parts for each point; different uppercase letters indicate significant differences between sampling sites for each plant part, p < 0.05.
Source publication
Ultramafic areas are critical for nickel (Ni) phytomining due to the high concentration of this element in their soils and the number of hyperaccumulators they harbor. The aim of the present study was to evaluate the potential of the Morais massif, an ultramafic area in Portugal, for phytomining using the hyperaccumulator species Alyssum serpyllifo...
Context in source publication
Context 1
... results of the concentrations of Cr and Ni in the different plant tissues from each sampling site are presented in Figure 4. Regarding Cr concentrations in site 1, plants accumulate significantly higher amounts of Cr in the roots (69 mg kg −1 ) in comparison to the other tissues (Cr concentrations in stem, leaves, and flowers combined make a total of 20 mg kg −1 ). ...
Citations
... Em 2019, realizou-se um estudo para determinar as concentrações de Ni nos solos e o rendimento da espécie A. pintodasilvae em vários locais ao longo do maciço de Morais (Alves et al., 2019). As concentrações de Ni obtidas nos solos variaram entre os 721 e 2092 mg kg -1 e a concentração máxima de Ni obtida nas folhas da planta foi de 9545 mg kg -1 . ...
The ever-growing demand for metals has been fueling the development of alternative technologies to recover elements of interest from subeconomic deposits. One such example is phytomining, a technique that employs plants with the ability to accumulate astonishing amounts of metals in their tissues. These plants, called hyperaccumulators, can be used to retrieve metals such as Ni or Au from ultramafic soils and mine tailings, respectively. The rhizosphere of hyperaccumulators is often populated by large amounts of microorganisms mainly consisting of bacteria and mycorrhizal fungi. These microorganisms can enhance plant biomass production, reduce metal phytotoxicity, and increase the bioavailability of certain elements of interest. In this chapter, we review the role of bacteria and mycorrhizal fungi in phytomining and outline future perspectives of their application to enhance this green metal–recovery technique.
