Effect of Methyl Jasmonate on the Root Growth and the Eleutheroside Accumulation in the Adventitious Root Culture of Eleutherococcus senticosus

가시오갈피나무 부정근(不定根) 배양(培養)에서 부정근(不定根)의 생장(生長)과 Eleutheroside류(類)의 생산(生産)에 미치는 Methyl jasmonate 처리(處理)의 영향

  • 안진권 (국립산림과학원 산림유전자원부) ;
  • 이위영 (국립산림과학원 산림유전자원부) ;
  • 박응준 (국립산림과학원 산림유전자원부)
  • Received : 2010.02.26
  • Accepted : 2010.04.28
  • Published : 2010.06.30

Abstract

This study was carried out to investigate the dose-dependent effect of methyl jasmonate on both the adventitious root growth and the accumulation of various eleutherosides in the bioreactor culture of Eleutherococcus senticosus adventitious roots. The highest biomass production (5.4 g DW/L) was observed in the absence of methyl jasmonate and the root growth was significantly decreased by increasing the methyl jasmonate concentration. However, methyl jasmonate stimulated the production of both eleutheroside B, E and $E_1$. The highest level of eleutheroside B (359.9 ${\mu}g$/g DW) was obtained at 40 ${\mu}M$ of methyl jasmonate, while eleutheroside E and $E_1$ was accumulated at the highest level by the addition of 10 ${\mu}M$ of methyl jasmonate. Total eleutheroside was increased up to 3818.1 ${\mu}g$ per liter when 10 ${\mu}M$ of methyl jasmonate was applied. In addition, when the adventitious roots were cultured with 20 ${\mu}M$ of methyl jasmonate, the highest levels of eleutheroside B, E and $E_1$ were observed at the 12th, 3th and 9th days of culture, respectively.

생물반응기를 이용한 가시오갈피 부정근 배양시에 methyl jasmonate를 농도별 (0, 5, 10, 20, 40 및 80 ${\mu}M$)로 처리하여 부정근의 생장과 eleutheroside류 생산과의 관계를 조사하였다. Methyl jasmonate 처리농도별 부정근의 생장은 무처리구에서 5.4 g dry weight(DW)/L로 가장 높았으며 methyl jasmonate 농도가 증가할수록 부정근 생장은 감소하였다. 그러나 eleutheroside B의 함량은 methyl jasmonate 농도가 높을수록 증가하여 40 ${\mu}M$ 처리구에서 각각 359.9 ${\mu}g$/g DW로 생산량이 가장 많았다. 반면에 eleutheroside E와 $E_1$은 10 ${\mu}M$ 처리구에서 각각 798.1 ${\mu}g$/g DW, 19.7 ${\mu}g$/g DW로 생산량이 가장 많았다. 배지 1 L당 eleutheroside류의 총생산량은 10 ${\mu}M$ 처리구에서 3818.1 ${\mu}g$/L를 생산하여 가장 우수하였다. 20 ${\mu}M$의 methyl jasmonate 처리 후 15일간 eleutheroside류의 함량을 조사한 결과 eleutheroside B는 methyl jasmonate처리 후 12일째, eleutheroside E는 처리 후 3일째, eleutheroside $E_1$은 처리 후 9일째 각각 가장 많은 생산량을 보여 주었다.

Keywords

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