| Desert and Desertification |
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| Variation of Endogenous Phytohormones of Lilium oriental ‘Sorbonne' during Scale Propagation |
| AN Li-ping1, XIE Zhong-kui1, LI Yi-hua2, AN Li-zhe1,3, ZHANG Ya-juan1 |
1.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
2.Department of Agronomy, Hexi University, Zhangye 734000, Gansu, China;
3.School of Life Sciences, Lanzhou University, Lanzhou 730000, China |
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Abstract Variations of contents of endogenous hormones, namely Gibberellin (GA3), Indoleacetic Acid (IAA), Abscisic Acid(ABA) and Zeatin (ZT), in scales, bulblets and new roots of Lilium oriental Sorbonne' during scale propagation process were analyzed using high-performance liquid chromatography. Results show that the four endogenous hormones have distinct distribution in scales, bulblets and new roots during bulblet formation and growth process: ZT and GA3 concentrations are higher in scales than in bulblets and new roots; IAA concentration is higher in new roots than in scales and bulblets; ABA concentration is the highest in bulblets. All the four hormones have increasing trends in scales and bulblets with different increase rate during scale propagation. The net increasing rate of ZT concentration in scales is 109%, which is the highest among the four hormones. IAA concentration has a net increasing rate of 102% in bulblets. The hormones except ABA are in increasing trends in new roots, and the increasing rate of ZT concentration is the highest, by 493%.
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Received: 25 September 2011
Published: 20 May 2012
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2012, Vol. 32 
