Responses of elongation growth rate, turgor pressure and cell wall extensibility of stem cells of Impatiens balsamina to lead, cadmium and zinc

@article{Aidid2004ResponsesOE,
  title={Responses of elongation growth rate, turgor pressure and cell wall extensibility of stem cells of Impatiens balsamina to lead, cadmium and zinc},
  author={Sharifah Barlian Aidid and Hishashi Okamoto},
  journal={Biometals},
  year={2004},
  volume={6},
  pages={245-249}
}
Elongation growth rate of stem cells of Impatiens balsamina was inhibited by the heavy metals Pb2+, Cd2+ and Zn2+ due to their suppression on cell wall extensibility. Effective turgor was also inhibited by Pb2+ and Cd2+ but it played a secondary role in reducing the stem cell elongation growth rate. The major rate-limiting factor for cell elongation growth was the cell wall extensibility. Furthermore, Cd2+ was found to be more toxic than Pb2+, while Pb2+ was more toxic than Zn2+.