Overexpression of phytochelatin synthase in tobacco: distinctive effects of AtPCS1 and CePCS genes on plant response to cadmium

  title={Overexpression of phytochelatin synthase in tobacco: distinctive effects of AtPCS1 and CePCS genes on plant response to cadmium},
  author={Sylwia Wojas and Stephan Clemens and Jacek Hennig and Aleksandra Skłodowska and Edyta Kopera and Henk Schat and Wojciech Bal and Danuta Maria Antosiewicz},
  journal={Journal of Experimental Botany},
  pages={2205 - 2219}
Phytochelatins, heavy-metal-binding polypeptides, are synthesized by phytochelatin synthase (PCS) (EC Previous studies on plants overexpressing PCS genes yielded contrasting phenotypes, ranging from enhanced cadmium tolerance and accumulation to cadmium hypersensitivity. This paper compares the effects of overexpression of AtPCS1 and CePCS in tobacco (Nicotiana tabacum var. Xanthi), and demonstrates how the introduction of single homologous genes affects to a different extent… CONTINUE READING


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