|MadSci Network: Botany|
Hyperaccumulator plants are able to accumulate unusually high levels of heavy metals because they can store them in cell vacuoles where they cannot harm metabolic processes in the cell cytoplasm. The plant cell vacuole has been termed the "cellular trashbag." One yeast that accumulates high levels of cadmium has small peptides called phytochelatins that bond with cadmium ions. This allows transport of the cadmium ions across cell membranes and into the vacuole. References X-ray Imaging of Zinc Uptake and Accumulation in Hyperaccumulator Thlaspi caerulescens Re: How does biomining for heavy metals work? Yeast Gene and Cadmium
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