Journal of Plant Biology

, Volume 59, Issue 2, pp 105–113 | Cite as

Effect of La(NO3)3 and Ce(NO3)3 on shoot induction and seedling growth of in vitro cultured anoectochilus roxburghii

  • Yingya Xu
  • Guifang Zhang
  • Yan Wang
  • Ge Guo
Original Article


Anoectochilus roxburghii, a highly valuable medicinal plant species, is threatened in its native habitat. To ensure the sustainability of this useful resource, we studied the effect of La(NO3)3 and Ce(NO3)3 on plant tissue culturepropagated A. roxburghii. Apical buds, mid-stem segments, and basal rhizome segments were taken from aseptic seedlings of A. roxburghii and cultured in vitro on half-strength Murashige-Skoog medium containing different concentrations (up to 5.0 mg/L) of La(NO3)3 or Ce(NO3)3. After 100 d of culturing, average heights of plantlets derived from apical buds were 6.0 cm with 5.0 mg/L La(NO3)3 and 6.2 cm with 2.0 mg/L Ce(NO3)3, which respectively increased by 28.0% and 32.0% as compared with that in the non-treated control group. The optimum concentration for shoot induction from mid-stem segments was 1.0 mg/L Ce(NO3)3 which had a better proliferation times of 1.5-fold and an average length of 3.0 cm compared with 1.0-fold and 2.2 cm in the control group. Optimum growth from basal rhizome segments was achieved on media supplemented with 3.0 mg/L Ce(NO3)3, which provided a better proliferation times of 5.1-fold and an average shoot length of 4.5 cm compared with corresponding control values of 2.0-fold and 3.5 cm. Our results showed that La(NO3)3 and Ce(NO3)3 can accelerate A. roxburghii regeneration, which was probably due to the effect on chlorophyll contents, enzymes activity (superoxide dismutase, catalase and peroxidase) and malonldialedhyde contents caused by the addition of La(NO3)3 or Ce(NO3)3.


Anoectochilus roxburghii Cesium nitrate in vitro culture Lanthanum nitrate Plant regeneration 


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Copyright information

© Korean Society of Plant Biologists and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.School of Chinese MedicineGuangzhou University of Chinese MedicineGuangzhou, GuangdongChina

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