Heavy Metal Hyperaccumulation and Hypertolerance in Brassicaceae

2018 ◽  
pp. 263-276 ◽  
Author(s):  
Mudasir Irfan Dar ◽  
Mohd Irfan Naikoo ◽  
Iain D. Green ◽  
Nusrath Sayeed ◽  
Barkat Ali ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Hyperaccumulation

scholarly journals Visualizing Hotspots and Future Trends in Phytomining Research Through Scientometrics

2020 ◽  
Vol 12 (11) ◽  
pp. 4593 ◽  
Author(s):  
Chen Li ◽  
Xiaohui Ji ◽  
Xuegang Luo
Keyword(s):  
Heavy Metal ◽  
Research Area ◽  
Growth Effect ◽  
Future Research ◽  
Low Grade ◽  
Future Trends ◽  
Metal Hyperaccumulation ◽  
Metal Recycling ◽  
Potential Applications ◽  
Prolific Authors

Phytomining has attracted widespread attention as a technique for harvesting “bio-ore.” This technology has potential applications in the metal and minerals industry for low-grade metal and mineral mining as well as metal recycling from polluted soil. The hotspots and future trends of this technology deserve in-depth exploration. This paper presents a systematic review of the phytomining research area through the scientometrics method based on the citation data collected from the Web of Science Core Collection (WoSCC). The results show that the earliest phytomining-related research was published in 1997. Between 1997 and 2019, 232 publications were published in 109 journals. Plant and Soil, the International Journal of Phytoremediation, and the Journal of Geochemical Exploration were the top three most prolific journals and accounted for 18.1% of these publications. Guillaume Echevarria, J.L. Morel, and Antony Van der Ent were the top three most prolific authors, and their work accounted for 40.1% of these publications. The cluster results of document co-citation analysis revealed that the hotspots in phytomining research area mainly includes “nickel accumulation,” “heavy metal uptake,” “mining site,” “heavy metal,” “hyperaccumulation yield,” “growth effect,” and “alternative method.” Keyword burst detection results find that the hot topics have changed over time from “phytomining” to “agromining”; from “contaminated soil” to “serpentine soil”; and from “mechanism” to “phytomining process” and “commercial phytoextraction.” This study describes the intellectual landscape of research and provides future research directions for phytomining research so that researchers can identify future research topics and partners.

scholarly journals Experimental and Field Data Support Range Expansion in an Allopolyploid Arabidopsis Owing to Parental Legacy of Heavy Metal Hyperaccumulation

2020 ◽  
Vol 11 ◽  
Author(s):  
Timothy Paape ◽  
Reiko Akiyama ◽  
Teo Cereghetti ◽  
Yoshihiko Onda ◽  
Akira S. Hirao ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Range Expansion ◽  
Field Data ◽  
Metal Hyperaccumulation ◽  
Data Support

Molecular mechanisms of heavy metal hyperaccumulation and phytoremediation

2005 ◽  
Vol 18 (4) ◽  
pp. 339-353 ◽  
Author(s):  
Xiaoe Yang ◽  
Ying Feng ◽  
Zhenli He ◽  
Peter J. Stoffella
Keyword(s):  
Heavy Metal ◽  
Molecular Mechanisms ◽  
Metal Hyperaccumulation

scholarly journals Experimental and field data support habitat expansion of the allopolyploid Arabidopsis kamchatica owing to parental legacy of heavy metal hyperaccumulation

2019 ◽  
Author(s):  
Timothy Paape ◽  
Reiko Akiyma ◽  
Teo Cereghetti ◽  
Yoshihiko Onda ◽  
Akira Hirao ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Parental Species ◽  
Natural Populations ◽  
Serpentine Soils ◽  
Metal Hyperaccumulation ◽  
Leaf Tissues ◽  
Hydroponic Cultures ◽  
Arabidopsis Kamchatica ◽  
Native Soils ◽  
Two Populations

AbstractLittle empirical evidence is available whether allopolyploid species combine or merge adaptations of parental species. The allopolyploid species Arabidopsis kamchatica is a natural hybrid of the diploid parents A. halleri, a heavy metal hyperaccumulator, and A. lyrata, a non-hyperaccumulating species. Zinc and cadmium were measured in native soils and leaf tissues in natural populations, and in hydroponic cultures of A. kamchatica and A. halleri. Pyrosequencing was used to estimate homeolog expression ratios. Soils from human modified sites showed significantly higher Zn concentrations than non-modified sites. Leaf samples of A. kamchatica collected from 40 field localities had > 1,000 µg g-1 Zn in over half of the populations, with significantly higher amounts of Zn concentrations in plants from human modified sites. In addition, serpentine soils were found in two populations. Most genotypes accumulated >3000 µg g-1 of Zn in hydroponic culture with high variability among them. Genes involved in hyperaccumulation showed a bias in the halleri-derived homeolog. A. kamchatica has retained constitutive hyperaccumulation ability inherited from A. halleri. Our field and experimental data provides a compelling example in which the inheritance of genetic toolkits for soil adaptations likely contributed to the habitat expansion of an allopolyploid species.

scholarly journals Accumulation of Pb, Fe, Mn, Cu and Zn in plants and choice of hyperaccumulator plant in the industrial town of Vian, Iran

2011 ◽  
Vol 63 (3) ◽  
pp. 739-745 ◽  
Author(s):  
B. Lorestani ◽  
M. Cheraghi ◽  
N. Yousefi
Keyword(s):  
Heavy Metal ◽  
Contaminated Soils ◽  
Industrial Area ◽  
Contaminated Site ◽  
Metal Hyperaccumulation ◽  
Major Step ◽  
Industrial Town ◽  
High Concentrations ◽  
Hyperaccumulator Plant ◽  
Cu And Zn

Various industrial activities contribute heavy metals to the soil environment directly or indirectly through the release of solid wastes, waste gases, and wastewater. Phytoremediation can be potentially used to remedy metal-contaminated sites. A major step towards the development of phytoremediation of heavy metal-impacted soils is the discovery of the heavy metal hyperaccumulation in plants. This study evaluated the potential of 7 species growing on a contaminated site in an industrial area. Several established criteria to define a hyperaccumulator plant were applied. The case study was represented by an industrial town in the Hamedan province in the central-western part of Iran. This study showed that most of the sampled species were able to grow in heavily metal-contaminated soils and were also able to accumulate extraordinarily high concentrations of some metals such as Pb, Fe, Mn, Cu and Zn. Based on the obtained results and using the most common criteria, Camphorosma monospeliacum for Pb and Fe, and Salsola soda and Circium arvense for Pb can be classified as hyperaccumulators and, therefore, they have suitable potential for the phytoremediation of contaminated soils.

Accumulated Characteristics of Hyperaccumulation Hibiscus esulentus L in Relation to Heavy Metals Cd

2013 ◽  
Vol 295-298 ◽  
pp. 1631-1635
Author(s):  
Yu Zhang ◽  
Zong Ya Tao
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Hyperaccumulation ◽  
Planting Methods ◽  
Relationship Of ◽  
The Relationship ◽  
Treatment Concentration ◽  
Efficient Elimination ◽  
Selection Of ◽  
Ground Part

The study and selection of heavy metal hyperaccumulation and its planting methods and a rapid and efficient elimination of heavy metals in the contaminated environment are important research focuses to deal with the restoration and controlling of heavy metal contaminated environment. This experiment aims to explore the accumulation and accumulation characteristics of Cd on Hibiscus esulentus L in the simulation heavy metal contaminated environment achieved by pot cultivating techniques. To this end, different concentrations of heavy metal CdSO4 were used as treatment. The results indicated that with increase of the concentration of CdSO4, the accumulation of Cd in Hibiscus esulentus L was increased. When the treatment concentration of CdSO4 was at its highest (100mg/Kg), the accumulation of Cd on the above ground was 0.498mg/gDW, the highest, and that under the ground was 0.117mg/gDW. In view that the relationship of Hibiscus esulentus L of its above ground part(S) and its underground part (R) is S/R>1, experimental evidence shows that it has the basic characteristic of Cd hyperaccumulation.

scholarly journals Investigation of Heavy Metal Hyperaccumulation at the Cellular Level: Development and Characterization of Thlaspi caerulescens Suspension Cell Lines

2008 ◽  
Vol 147 (4) ◽  
pp. 2006-2016 ◽  
Author(s):  
Melinda A. Klein ◽  
Hitoshi Sekimoto ◽  
Matthew J. Milner ◽  
Leon V. Kochian
Keyword(s):  
Heavy Metal ◽  
Cell Lines ◽  
Cellular Level ◽  
Thlaspi Caerulescens ◽  
Suspension Cell ◽  
Metal Hyperaccumulation

scholarly journals A Test of the Inadvertent Uptake Hypothesis Using Plant Species Adapted to Serpentine Soil

Soil Systems ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 34
Author(s):  
George A. Meindl ◽  
Mark I. Poggioli ◽  
Daniel J. Bain ◽  
Michael A. Colón ◽  
Tia-Lynn Ashman
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Plant Species ◽  
Extreme Environments ◽  
Common Garden ◽  
Heavy Metal Accumulation ◽  
Serpentine Soils ◽  
Nutrient Deficiencies ◽  
Metal Hyperaccumulation ◽  
Toxic Heavy Metals

Serpentine soils are a stressful growing environment for plants, largely due to nutrient deficiencies and high concentrations of toxic heavy metals (e.g., Ni). Plants have evolved various adaptations for tolerating these extreme environments, including metal hyperaccumulation into above-ground tissues. However, the adaptive significance of metal hyperaccumulation is a topic of debate, with several non-mutually-exclusive hypotheses under study. For example, the inadvertent uptake hypothesis (IUH) states that heavy metal accumulation is a consequence of an efficient nutrient-scavenging mechanism for plants growing in nutrient-deficient soils. Thus, it is possible that metal hyperaccumulation is simply a byproduct of non-specific ion transport mechanisms allowing plants to grow in nutrient-deficient soils, such as serpentine soils, while simultaneously tolerating other potentially toxic heavy metals. Furthermore, some nutrient needs are tissue-specific, and heavy metal toxicity can be more pronounced in reproductive tissues; thus, studies are needed that document nutrient and metal uptake into vegetative and reproductive plant tissues across species of plants that vary in the degree to which they accumulate soil metals. To test these ideas, we grew nine plant species that are variously adapted to serpentine soils (i.e., Ni-hyperaccumulating endemic, non-hyperaccumulating endemic, indicator, or indifferent) in a common garden greenhouse experiment. All species were grown in control soils, as well as those that were amended with the heavy metal Ni, and then analyzed for macronutrient (Ca, Mg, K, and P), micronutrient (Cu, Fe, Zn, Mn, and Mo), and heavy metal (Cr and Co) concentrations in their vegetative and reproductive organs (leaves, anthers, and pistils). In accordance with the IUH, we found that hyperaccumulators often accumulated higher concentrations of nutrients and metals compared to non-hyperaccumulating species, although these differences were often organ-specific. Specifically, while hyperaccumulators accumulated significantly more K and Co across all organs, Cu was higher in leaves only, while Mn and Zn were higher in anthers only. Furthermore, hyperaccumulators accumulated significantly more Co and Mo across all organs when Ni was added to the soil environment. Our work provides additional evidence in support of the IUH, and contributes to our understanding of serpentine adaptation in plants.

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