Biotechnology Bulletin ›› 2025, Vol. 41 ›› Issue (10): 277-291.doi: 10.13560/j.cnki.biotech.bull.1985.2025-0302

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Combined Metabolome and Transcriptome Analysis of the Differences in Terpenoids between New and Old Leaves of Artemisia argyi H. Lév. & Vaniot

JI Meng-ran(), ZHANG Rui-ying, LIU Hong-dan, FENG Wei-meng, LIU Xiu-yu, MA Rui(), CHEN Sui-qing()   

  1. College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450000
  • Received:2025-03-20 Online:2025-10-26 Published:2025-10-28
  • Contact: MA Rui, CHEN Sui-qing E-mail:r851368300@163.com;ruimazy@163.com;suiqingchen0371@163.com

Abstract:

Objective To explore the changes of terpenoids in Artemisia argyi H. Lév. & Vaniot during its growth and development, and analyze the molecular catalytic mechanism of terpenoids in its accumulation. Method Gas chromatography-mass spectrometry (GC-MS) and Single Molecule Real-Time (SMRT) sequencing technology of the PacBio platform were used to analyze the metabolomics and transcriptomics of new leaves and old leaves of A. argyi. Result Metabolomics results showed that 150 different metabolites were obtained, including terpenoids (33), heterocyclic compounds (26) and esters (24). There were 149 down-regulated metabolites and 1 up-regulated metabolite in old leaves when compared with those in new leaves. A total of 4 different metabolites were enriched into metabolic pathways related to terpenoid synthesis. The transcriptomic results showed that there were 711 differential genes between new leaves and old leaves, of which 406 were up-regulated, and 305 were down-regulated. And 2 differential genes were annotated to the pathway related to terpenoid synthesis. There were 12 specific terpenoid metabolites involved in terpenoid biosynthesis, and the key genes related to them mainly include 1-deoxy-D-xylulose-5-phosphate synthase (DXS), geranylgeranyl pyrophosphate synthase (GGPS), etc. Conclusion There are some differences in gene expression and metabolism between new leaves and old leaves of A. argyi. But there is little difference in gene expression in the pathway of terpenoid biosynthesis. It is speculated that the difference of gene expression in the leaves of the same plant with different developmental degrees being little.

Key words: Artemisia argyi H. Lév. & Vaniot., terpenoids, biosynthesis, metabolome, transcriptome