Abstract
The effects of four concentrations (0.5, 1, 5 and 10 μg mL−1) of the heavy metals Hg, As, Pb, Cu, Cd, and Cr on some senescence variables of Cuscuta reflexa Roxb. were studied. All of the treatments, except 0.5 μg mL−1, decreased Hill reaction activity, chlorophyll and protein contents and dry matter percentage in biomass and increased tissue permeability over control data. The harmful effects of the metals were best visible at 10 μg mL−1. The general order of sensitivity was As > Cd > Pb > Hg > Cu > Cr (absolute metal concentration). The data suggest that Cuscuta reflexa shows tolerance to the heavy metals tested up to 0.5 μg mL−1.
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Jana, S., Dalal, T. & Barua, B. Effects and relative toxicity of heavy metals on Cuscuta reflexa . Water Air Soil Pollut 33, 23–27 (1987). https://doi.org/10.1007/BF00191374
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DOI: https://doi.org/10.1007/BF00191374