Journal of East China Normal University(Natural Sc ›› 2005, Vol. 2005 ›› Issue (2): 58-64.

• Article • Previous Articles     Next Articles

Effects of Pulsed Electric Field on Suspension Cultures ofTaxus chinensis (Chinese)

YE Hong 1,HUANG Lin-ling1,CHEN Shu-de1,ZHONG Jian-jiang2   

  1. 1.Key Laboratory of optical and magnetic resonance spectroscopy, Minisitry of Education,Department of Physics, East China Normal University, Shanghai 200062,China;2.State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai200237,China
  • Received:2003-11-28 Revised:2004-01-13 Online:2005-05-25 Published:2005-05-25
  • Contact: YE Hong

Abstract:

Suspension culture of Taxus chinensis was used as a model plant cell system to study the effects of pulsed electric field (PEF) on cell growth and the biosynthesis of secondary metabolites. Different exposure time of PEF had different effects on Taxus chinensis cells in different cell growth phases. Significant intracellular enhanced accumulation of taxuyunnanine C (Tc, a bioactive secondary metabolite) was observed by exposing the cells in early exponential growth phase to a 30 min PEF. The Tc content increased by 30% after exposure to PEF, without any loss of dry cell weight compared with that of the control. Moreover, combination of PEF with sucrose feeding showed a great synergistic accumulative effect on secondary metabolite production.

Key words: Taxuyunnanine C, pulsed electric field, plant cell culture, Taxus chinensis, Taxuyunnanine C, pulsed electric field, plant cell culture

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