作者: Aneta Piechalak , Barbara Tomaszewska , Danuta Barałkiewicz
DOI: 10.1016/S0031-9422(03)00515-6
关键词:
摘要: The aim of our research was to demonstrate how the presence EDTA affects resistance pea plants Pb and Pb-EDTA presence, show effectivity lead ions accumulation translocation. It determined that not only increased amount taken up by but also ion transport through xylem metal translocation from roots stems leaves. can be seen in presented results addition chelator with limited phytotoxicity. We demonstrated a significant effect on aboveground parts profile thiol compounds: glutathione (GSH), homoglutathione (hGSH) or phytochelatins (PCs), synthesized plants. observed synthetic increasing level treated including (0.5 1 mM). Pisum sativum mM Pb(NO3)2 accumulated over 50 mg x g(-1) dry wt during 4 days cultivation. Whereas exposed Pb+0.5 35% more observed. When applied 67% metal. uptake parts. In nitrate less than 3 transported, whereas P. doubled