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Bulletin of Botanical Research ›› 2015, Vol. 35 ›› Issue (1): 150-153.doi: 10.7525/j.issn.1673-5102.2015.01.023

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Zn Stress Changchun Spend Different Parts of Zn Accumulation by Exogenous Ethephon Regulation


  1. Key Laboratory of Forest Plant Ecology of Northeast Forestry University,Ministry of Education,Harbin 150040
  • Online:2015-01-15 Published:2015-03-11
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Abstract: Catharanthus roseus root enrichment ability of Zn is stronger on exogenous zinc stress, so Zn damage to the root is larger. C.roseus root response to enrichment ability of zinc stress on the absorption of Zn with the concentration of Zn increased exhibit advanced in low concentration but controled in high concentration, Zn content of stem, leaves increased gradually with increasing Zn concentration, shows strong enrichment ability of C.roseus for Zn, and there is some potential hyperaccumulator. While the Zn transport ability is strong from mature tissue to young tissues. In the zinc stress based on adding exogenous ethylene, reducing the organization position of plant enrichment ability of Zn, reducing the zinc stress of C.roseus. To promote the Zn transport rate of mature tissue to young tissue, but inhibited Zn transport in C.roseus other tissue.

Key words: Catharanthus roseus;Zinc stress;Ethephon, accumulate;transport;tolerance

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