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Bulletin of Botanical Research ›› 2006, Vol. 26 ›› Issue (2): 206-210.doi: 10.7525/j.issn.1673-5102.2006.02.017

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Quantitative variation of endogenous hormones in Rosa rugosa leaf during flower bud differentiation

PENG Gui-Qun;WANG Li-Hua*   

  1. 1.Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 2.Graduate School of Chinese Academy of Sciences, Beijing 100039
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-03-20 Published:2006-03-20
  • Contact: WANG Li-Hua
  • Supported by:

Abstract: Endogenous hormones IAA, ZR, GA3 and ABA in methanol extract of Rosa rugosa C.V Plena leaf during flower bud differentiation were isolated and purified, and their contents were determined. The results showed that during flower bud differentiation, IAA and GA3 contents decreased gradually, with the minimum when flower bud begun to differentiate, while ZR and ABA were quite the contrary. The ratios ABA/GA3, ABA/IAA, ZR/GA3, and ZA/IAA had an increasing trend, with a leap, suggesting that they played an important role in regulating the process of Rosa rugosa C.V Plena flower bud differentiation. It’s speculated that increasing the ABA and ZA contents or decreasing the IAA and GA3 contents in Rosa rugosa C.V Plena might be able to accelerate its flower bud differentiation.

Key words: Rosa rugosa C.V Plena, flower bud differentiation, endogenous hormone

CLC Number: