Hyperaccumulators of metal and metalloid trace elements: Facts and fiction
Reads0
Chats0
Abstract:
Plants that accumulate metal and metalloid trace elements to extraordinarily high concentrations in their living biomass have inspired much research worldwide during the last decades. Hyperaccumulators have been recorded and experimentally confirmed for elements such as nickel, zinc, cadmium, manganese, arsenic and selenium. However, to date, hyperaccumulation of lead, copper, cobalt, chromium and thallium remain largely unconfirmed. Recent uses of the term in relation to rare-earth elements require critical evaluation. Since the mid-1970s the term ‘hyperaccumulator’ has been used millions of times by thousands of people, with varying degrees of precision, aptness and understanding that have not always corresponded with the views of the originators of the terminology and of the present authors. There is therefore a need to clarify the circumstances in which the term ‘hyperaccumulator’ is appropriate and to set out the conditions that should be met when the terms are used. We outline here the main considerations for establishing metal or metalloid hyperaccumulation status of plants, (re)define some of the terminology and note potential pitfalls. Unambiguous communication will require the international scientific community to adopt standard terminology and methods for confirming the reliability of analytical data in relation to metal and metalloid hyperaccumulators.read more
Citations
More filters
Journal ArticleDOI
Mercury accumulation potential of aquatic plant species in West Dongting Lake, China.
TL;DR: Wang et al. as discussed by the authors studied the ability of various plant species to accumulate mercury pollutants from soil and water, nine sites were studied in the downstream direction of the flow of the Yuan and Li Rivers, which are tributaries of the Yellow River flowing into West Dongting Lake, where mercury levels are high in soil and plant tissues.
Journal ArticleDOI
Effect of Pseudomonas putida-producing pyoverdine on copper uptake by Helianthus annuus cultivated on vineyard soils
TL;DR: In this article , the role of siderophores in the extraction of Cu from the soil-bearing phases and its phytoavailability in vineyard soils was identified, and a bioaugmentation-assisted approach was used to reduce the Cu load in vineyards.
Journal ArticleDOI
Biogeochemical cycling of nickel and nutrients in a natural high-density stand of the hyperaccumulator Phyllanthus rufuschaneyi in Sabah, Malaysia
Romane Tisserand,Philip Nti Nkrumah,Antony van der Ent,Antony van der Ent,Sukaibin Sumail,Bernhard Zeller,Guillaume Echevarria,Guillaume Echevarria +7 more
TL;DR: The results show that Ni turnover varies significantly with the accumulation properties of the plant cover, which points to the major influence of Ni hyperaccumulator plants in building up Ni available stocks in the topsoils, as has also been shown in temperate ultramafic systems.
Dissertation
Phytoextraction of cadmium by species of the Brassicaceae
TL;DR: This paper presents the physiological and genetic characteristics of the mechanisms underlying metalhyperaccumulation, and investigates its role in pollution and bioremediation.
Journal ArticleDOI
Türkiye Florasında Peyzaj Özelliği Gösteren Hiperakümülatör Bitkilerin Maden Alanlarının Onarımında Kullanımı
Aslıhan Esringü,Işık Sezen +1 more
TL;DR: Madencilik faaliyetleri sanayi devriminden bu yana insan yasaminin surdurulebilirliginde, ulkelerin refah ve kalkinma duzeylerinin ilerlemesinde bir gosterge olarak kabul edilmektedir.
References
More filters
Terrestrial higher plants which hyperaccumulate metallic elements. a review of their distribution, ecology and phytochemistry
TL;DR: Phytochemical studies suggest that hyperaccumulation is closely linked to the mechanism of metal tolerance involved in the successful colonization of metalliferous and otherwise phytotoxic soils.
Journal ArticleDOI
Accumulators and excluders ?strategies in the response of plants to heavy metals
TL;DR: In this paper, two basic strategies of plant response are suggested, accumulators and excluders, which do not generally suppress metal uptake but result in internal detoxification, and indicators are seen as a further mode of response where proportional relationships exist between metal levels in the soil, uptake and accumulation in plant parts.
Journal ArticleDOI
A fern that hyperaccumulates arsenic
TL;DR: A hardy, versatile, fast-growing plant that helps to remove arsenic from contaminated soils.
Journal ArticleDOI
Zinc in plants
Martin R. Broadley,Philip J. White,John P. Hammond,Ivan Zelko,Ivan Zelko,Alexander Lux,Alexander Lux +6 more
TL;DR: The dominant fluxes of Zn in the soil-root-shoot continuum are described, including Zn inputs to soils, the plant availability of soluble Zn(2+) at the root surface, and plant uptake and accumulation of ZN.
Book
Phytoremediation of toxic metals : using plants to clean up the environment
Ilya Raskin,Burt D. Ensley +1 more
TL;DR: Why Use Phytoremediation?