Hyperaccumulation
nounPronunciation: /ˌhaɪpərˌækjuːmjuˈleɪʃən/
The ability of certain plant species to accumulate and tolerate abnormally high concentrations of heavy metals in their tissues without phytotoxic effects. Hyperaccumulator plants are used in phytoremediation programs at mine sites where traditional soil remediation is economically or logistically impractical.
Plain English
The ability of specific plants to safely absorb and store high levels of heavy metals from contaminated soil.
Etymology & History
Usage
"Hyperaccumulation by native Alyssum species made phytoremediation a viable reclamation strategy for the nickel-contaminated tailings."
Style guide notes: Capitalize hyperaccumulator when referring to the plant species classification in formal botanical contexts.
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Related Terms
Frequently Asked Questions
Which plants are hyperaccumulators?
Common hyperaccumulators include Alyssum, Thlaspi, and Berkheya species, particularly for nickel and zinc.
How is hyperaccumulation used in reclamation?
Plants are grown on contaminated sites to remove metals through uptake and biomass harvesting in phytoremediation programs.
Why Test Candidates on This?
Hyperaccumulation knowledge is relevant for designing cost-effective phytoremediation strategies in abandoned metal mine reclamation.
Required skill level: Senior