目的比较几种生物诱导子〔酵母提取物(yeast ex tract)、寡半乳糖醛酸(o ligoga lacturon ides)、真菌诱导子(funga l e lic itor)〕和非生物诱导子(Ag⁺、Co²⁺和α-氨基异丁酸)对丹参毛状根培养生产丹参酮的影响。方法高效液相色谱法测定3种丹参酮。结果生物诱导子一般都能有效地提高丹参酮的产量,不同诱导子的诱导效果之间存在差别。最高的丹参酮产量由100μg/mL的真菌诱导子获得,是对照组产量(0.42 mg/g)的4.7倍。非生物诱导子对丹参酮的诱导能力相对生物诱导子较差,其中50μm o l/L Co²⁺获得了最高的丹参酮产量(1.75 mg/g),是对照组产量的4.1倍。生物诱导子和非生物诱导子表现出了一定的诱导选择性。所有的生物诱导子都显著提高了隐丹参酮的量而所有的非生物诱导子都选择性地提高了丹参酮Ⅰ的量。并且在大部分情况下,添加的诱导子都没有对丹参毛状根的生长造成明显的抑制作用。结论在丹参毛状根培养中添加不同的生物和非生物诱导子都可以选择性地提高丹参酮的积累,并且不影响毛状根的生长。

Objective To compare influence of several biotic elicitors(yeast extract,(oligogalactu-)ronides,and fungal elicitor) and abiotic elicitors(Ag⁺,Co²⁺,and α-amino isobutyric acid) on tanshinone production in the hairy root culture of Salvia miltiorrhiza.Methods The contents of three tanshinones were(analyzed) by high performance liquid chromatography.Results Biotic elicitors increased effectively the yield of tanshinones and there were difference among different elicitors' effects.The highest content of tanshinones was achieved by fungal elicitor at 100 μg/mL,which was(0.42 mg/g),4.7-fold of the control.The elicitation effects of abiotic elicitors were relatively lower than those of biotic elicitors,with Co²⁺ at 50 μmol/L giving the highest content of tanshinone(1.75 mg/g,4.1-fold of the control) among abiotic elicitors.Biotic and abiotic elicitors showed the selectivity of elicitation.All biotic elicitors notably increased the crypotanshinone content and all abiotic elicitors selectively enhanced the tanshinone I content.And in most cases,the elicitors added did not cause any obviously inhibitory effect on the hairy root growth. Conclusion Adding different biotic and abiotic elicitors may selectively promote tanshinone accumulation and not affect the hairy root growth in the hairy root cultures of S.miltiorrhiza.

香港理工大学资助项目(G-YD28andASDfund)