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Phenolic acid production is more effectively enhanced than tanshinone production by methyl jasmonate in Salvia miltiorrhiza hairy roots

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Abstract

Phenolic acids and tanshinones are two groups of pharmaceutical components present in Salvia miltiorrhiza Bunge. Methyl jasmonate (MeJA) has been reported to influence the accumulation of both phenolic acids and tanshinones in S. miltiorrhiza hairy roots. However, there is currently a lack of information regarding the comparison of how these two groups of bioactive compounds in S. miltiorrhiza respond to MeJA under the same conditions. In the present study, the effect of 100 µM MeJA on the biosynthesis of phenolic acids and tanshinones in S. miltiorrhiza hairy roots was investigated. The results showed that MeJA dramatically induced the accumulation of five different phenolic acids, especially rosmarinic acid and salvianolic acid B, which reached their highest contents at day 3 (20.3 mg/g DW, 1.5-fold of control) and day 6 (47.49 mg/g DW, 2.5-fold of control), respectively. The total production of phenolic acids was induced by as much as 3.3-fold of the control (day 9 after treatment), reaching 357.5 mg/L at day 6. However, tanshinone I was almost unaffected by MeJA treatment, and the accumulation of tanshinone IIA was inhibited. Furthermore, cryptotanshinone and dihydrotanshinone I were moderately induced by MeJA. The gene expression results indicated that MeJA probably induced the whole pathways, especially the tyrosine-derived pathway and the methylerythritol phosphate pathway, and finally resulted in the increased production of these metabolites. This study will help us to further understand how the different biosynthetic mechanisms of phenolic acids and tanshinones respond to MeJA and provide a reference for the future selection of elicitors for application to improving the production of targeted compounds.

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Abbreviations

4CL:

Hydroxycinnamate coenzyme A ligase

ABA:

Abscisic acid

C4H:

Cinnamic acid 4-hydroxylase

CT:

Cryptotanshinone

DSU:

Danshensu

DT-I:

Dihydrotanshinone I

DW:

Dry weight

DXR:

1-Deoxy-d-xylulose 5-phosphate reductoisomerase

DXS:

1-Deoxy-d-xylulose 5-phosphate synthase

ET:

Ethylene

FW:

Fresh weight

GA:

Gibberellic acid

GGPPS:

Geranylgeranyl diphosphate synthase

HMGR:

3-Hydroxy-3-methylglutaryl CoA reductase

HPPR:

4-Hydroxyphenylpyruvate reductase

JAs:

Jasmonates

CPS:

Copalyl diphosphate synthase

KSL:

Kaurene synthase-like

MeJA:

Methyl jasmonate

MEP:

Methylerythritol phosphate

MVA:

Mevalonate

PAL:

Phenylalanine ammonia-lyase

PDA:

Photodiode array detector

PEG:

Polyethylene glycol

RA:

Rosmarinic acid

RAS:

Rosmarinic acid synthase

Ri:

Root-inducing

RT-qPCR:

Quantitative real-time PCR

SA:

Salicylic acid

SAB:

Salvianolic acid B

T-I:

Tanshinone I

T-IIA:

Tanshinone IIA

T-DNA:

Transfer DNA

TAT:

Tyrosine aminotransferase

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Acknowledgements

This work was supported by the Natural Science Foundation of Zhejiang Provincial (No. LZ16H280001), National Natural Science Foundation of China (Nos. 81373908 and 81673536), The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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Contributions

ZongSuo Liang and YanFang Sun conceived and designed the research. Bingcong Xing conducted experiments and analyzed the data. Bingcong Xing and DongFeng Yang wrote the manuscript. Lin Liu contributed advice and revised. Ruilian Han contributed new reagents and advice.

Corresponding authors

Correspondence to Yanfang Sun or Zongsuo Liang.

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The authors declare that they have no conflict of interest.

Additional information

Communicated by Sergio J. Ochatt.

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Xing, B., Yang, D., Liu, L. et al. Phenolic acid production is more effectively enhanced than tanshinone production by methyl jasmonate in Salvia miltiorrhiza hairy roots. Plant Cell Tiss Organ Cult 134, 119–129 (2018). https://doi.org/10.1007/s11240-018-1405-x

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  • DOI: https://doi.org/10.1007/s11240-018-1405-x

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