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  • Meng Yu
  • Yuzhen Chen
  • Xiaozhong Lan
  • Deshan Jin
  • Junqi Zhang
  • Cunfu Lu
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Publication date
August 2015

Abstract

Saussurea laniceps is a perennial herbal alpine plant possessing strong cold tolerance. To get a deeper insight into its cold tolerance mechanisms, freezing tolerance and the proteomic profiles of cold-acclimated S. laniceps plantlets were analyzed. The survival rate of plantlets with height of 8-9 cm were recorded after exposure to chilling stress (2 ºC) and compared to plant material kept at a control temperature (23 ºC). The survival percent at-10°C increased from 0 % to 40 % during the 12 d of acclimation. Proteomic analyses, by two-dimensional gel electrophoresis (2-DE), performed during this stage revealed that 9 proteins were up-regulated, while 5 proteins were down-regulated. Among the proposed accumulating or appearing proteins, ch...

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