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Micropropagation system of Anaphalis hancockii Maxim in vitro and exploration of endogenous metabolome differences coursed by plant growth regulators

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Abstract

Anaphalis hancockii Maxim is often used as an aromatic plant in China. To effectively protect and utilize the resources of A. hancockii, a completely rapid micropropagation system has been developed. Additionally, ultra-performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS) technology, coupled with multivariate statistical analysis and pathway enrichment analysis, was used to assess the regulatory influences of 6-benzylaminopurine (6-BA) and kinetin (KT) applied in A. hancockii. The results showed that when MS medium was supplemented with 4.0 mg/L 2,4-D and 2.0 mg/L KT, the effect of inducing callus from leaf, petiole, and root explants was the best. At this time, the leaf callus induction rate was 94.67%. Adding 3.0 mg/L KT to the medium alone had the best induction effect on adventitious shoots, and the induction rate in leaf tissue at this time was 91.96%. The optimal condition for rooting medium was MS supplement with 0.1 mg/L IBA. The use of 6-BA and KT made the endogenous metabolite content show a more up-regulated trend to a certain extent. In addition, this study found that 6-BA was advantageous to the synthesis and accumulation of phenolic acids, and KT was beneficial to the synthesis and proliferation of terpenoids. Cytokinins have a significant effect on the aromatic components of A. hancockii, and the effects of different cytokinins on aromatic components seem to be different. The results of this study indicate that plant tissue culture is an essential biotechnological means to change the pattern of aromatic components in aromatic plants.

Key message

The use of 6-BA and KT both made the endogenous metabolite content show a more up-regulated trend to a certain extent in the rapid micropropagation system of Anaphalis hancockii Maxim.

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Data availability

All data generated or analysed during this study are included in this published article (and its Supplementary Information files).

Abbreviations

6-BA:

6-Benzylaminopurine

KT:

Kinetin

TDZ:

N-Phenyl-N′-1,2,3-thiadiazol-5-ylurea

2,4-D:

2,4-Dichlorophenoxy acetic acid

IAA:

Indole-3-acetic acid

IBA:

4-(3-Indolyl) butyric acid

NAA:

α-Napthaleneacetic acid

CK:

Control check

PGR:

Plant growth regulator

MS:

Murashige and Skoog medium

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Funding

This work was financially supported by The National Key Research and Development Program of China (2018YFD0201300).

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Authors

Contributions

WJL designed the experiments and manuscript. WXD developed the UPLC–MS methods. GZP performed the metabolomics analysis, interpreted the results, and prepared the manuscript. HN cultivated the experimental materials. DJL, LX, and LY developed the UPLC–MS methods and performed the experiments. YYY, LJL and WMJ contributions to the acquisition of data. All authors have read and approved the manuscript for publication.

Corresponding author

Correspondence to Junli Wang.

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The authors declare no conflict of interest.

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Communicated by Konstantin V. Kiselev.

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Supplementary file2 (XLSX 72 kb)

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Geng, Z., Hao, N., Du, J. et al. Micropropagation system of Anaphalis hancockii Maxim in vitro and exploration of endogenous metabolome differences coursed by plant growth regulators. Plant Cell Tiss Organ Cult 152, 81–98 (2023). https://doi.org/10.1007/s11240-022-02390-6

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  • DOI: https://doi.org/10.1007/s11240-022-02390-6

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