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http://dx.doi.org/10.5010/JPB.2003.30.2.173

Effects of Auxin-induced Ethylene on Growth and Development of Adventitious Roots of Panax ginseng C.A. Meyer  

Kim, Yun-Soo (Dongbu Advanced Research Institute)
Hahn, Eun-Joo (Research Center for the Development of Advanced Horticultural Technology, Chungbuk National University)
Paek, Kee-Yoeup (Research Center for the Development of Advanced Horticultural Technology, Chungbuk National University)
Publication Information
Journal of Plant Biotechnology / v.30, no.2, 2003 , pp. 173-177 More about this Journal
Abstract
The effect of IBA and NAA on adventitious root cultures of Panax ginseng C.A. Mater were investigated. Results indicated differences in growth and development of the roots according to 5mg/L IBA and 2mg/L NAA. IBA resulted in a normal root development and a higher growth compared to NAA. The roots formed on NAA-containing media were shorter and thicker than those in IBA, showing a hypertrophy of the root tip. NAA induced more than 1.6 times higher ethylene production compared to IBA, which caused inhibition of the root growth. Under the ventilation, in the other hand, on difference was observed in ethylene concentration and the root growth between IBA and NAA treatments. Under ventilation ethylene production was not detected until 10 days of culture, while detected from the initial stage under on ventilation. The results suggested the importance of ventilation during the culture for the growth and development of ginseng adventitious roots.
Keywords
Adventitious roots; auxin; bioreactor culture; ventilation;
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