Hello everybody I have a question for my small research. Which is a better parameter to describe the effect of heavy metal toxicity in plants- is it biomass (wet weight) or dry weight?or both are appropriate ? And if both of the parameters are appropriate what is the relation between the parameters and heavy metal toxicity in plants ?
Thank you, and sorry if I am asking too much
Hello Rizal.
I'm finishing the last year of my PhD: effect of metals on plants. Now, your question is directed where? Effects on what? Physiological? Biochemicals? Molecular? It all depends.
Hi Rizal
I think it is important consider to effeciency of plant for heavy metals uptake. some species seems as hyperaccumolator an deposit in different organs as root, trunk or leaves. also effeciency refers certainly to biomass production , for example in cases of equal uptake 1 ppm lead or Cadmium in trunk or leaf of 2 species of Eucalyptus camaldulensis and Eucalyptus microtheca , with regards to high biomass production in Eucalyptus camaldulensis compared to Eucalyptus microtheca , the first one is preffered for phytoremediation.
in case of more detailed informoation you can inform me with :
best wishes
Ali Salahi
Growth, and negative effets of trace elements thereon, can be assessed in different ways. In the "heavy metal" literature, root elongation in vitro has often been used; fresh or dry mass as well; of course mass determination is destructive. There are a lot of methods based on measurements of physiological processes (photosynthetic rate, etc.). It all depends on your objectives.
Most important: do never forget that "toxicity of a metal" or "tolerance to a metal" is always relative; you need to include in your design a control material (genotype or species), to which your own study material will be compared.
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