Complexation of Hg with phytochelatins is important for plant Hg tolerance
نویسندگان
چکیده
منابع مشابه
Complexation of Hg with phytochelatins is important for plant Hg tolerance.
Three-week-old alfalfa (Medicago sativa), barley (Hordeum vulgare) and maize (Zea mays) were exposed for 7 d to 30 µm of mercury (HgCl(2) ) to characterize the Hg speciation in root, with no symptoms of being poisoned. The largest pool (99%) was associated with the particulate fraction, whereas the soluble fraction (SF) accounted for a minor proportion (<1%). Liquid chromatography coupled with ...
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Optical spectroscopy and reverse-phase HPLC were used to investigate the binding of Hg(II) to plant metal-binding peptides (phytochelatins) with the structure (gammaGlu-Cys)2Gly, (gammaGlu-Cys)3Gly and (gammaGlu-Cys)4Gly. Glutathione-mediated transfer of Hg(II) into phytochelatins and the transfer of the metal ion from one phytochelatin to another was also studied using reverse-phase HPLC. The ...
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ژورنال
عنوان ژورنال: Plant, Cell & Environment
سال: 2011
ISSN: 0140-7791
DOI: 10.1111/j.1365-3040.2011.02281.x