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Scientia Silvae Sinicae ›› 2022, Vol. 58 ›› Issue (4): 82-94.doi: 10.11707/j.1001-7488.20220409

• Research papers • Previous Articles     Next Articles

Difference of Secondary Metabolites in Spines of Gleditsia sinensis and Gleditsia microphylla

Yuxin Geng1,Hongjiao Li1,Jianwei Zheng1,Qin Zhang2,Lina Yu1,Jiaqiu Li1,Baohui Li1,*   

  1. 1. School of Forestry, Agricultural University of Hebei Baoding 071000
    2. School of Landscape Architecture and Tourism, Agricultural University of Hebei Baoding 071000
  • Received:2021-05-14 Online:2022-04-25 Published:2022-07-20
  • Contact: Baohui Li

Abstract:

Objective: Many secondary metabolites in spina gleditsiae are medicinal active ingredients. This article aims to investigate the differential secondary metabolites in spines of Gleditsia sinensis and Gleditsia microphylla,and analyze the enrichment of the differential metabolic pathway,so as to provide a theoretical basis for the separation and identification of functional compounds from spina gleditsiae and for the research and development of functional compounds. Method: The 1-year-old spines of G. sinensis and G. microphylla were used as materials,the UPLC-MS/MS detection platform was used to determine secondary metabolites,and self-built database MWDB4.0 was used for metabonomic analysis. Results: 1) A total of 457 secondary metabolites were detected in the two species of spina gleditsiae,which were divided into 8 categories: phenolic acids,alkaloids,terpenes,flavonoids,lignans,coumarins,tannins,and others. Among them,phenolic acids and flavonoids accounted for a relatively large proportion; 2) There were significant differences in 213 metabolites in the spines between G. sinensis and G. Microphylla, of which the contents of 121 substances were higher in G. microphylla spines,including 55 phenolic acids and 54 flavonoids,5 kinds of lignans and coumarins,4 alkaloids,2 terpenes,and 1 other substance; The contents of 92 substances in G. microphylla were lower,including 21 phenolic acids,19 flavonoids,14 tannins,14 alkaloids,8 kinds of lignans and coumarins,16 others. 3) There were 22 kinds of unique metabolites in G. sinensis spines, of which isovitexin-2″-O-rhamnoside,N,N′-Diferuloylputrescine,diosmetin-8-C-(2″-O-rhamnosyl) glucoside,pterostilbene,and procyanidin C2 had relatively higher content. There were 27 unique metabolites in G. microphylla spines,of which the relative content of coniferin,5-O-Caffeoylshikimic acid,and quercetin-3-O-(2″-p-Coumaroyl) glucoside was relatively higher. 4) Metabolic pathway analysis of differential metabolites showed that the significantly differential metabolites in the pathways of "stilbene,diarylheptanes and gingerol biosynthesis" were significantly enriched,and the differential metabolites of phenylpropane biosynthesis and flavonoid metabolism were more enriched. Conclusion: There are 457 secondary metabolites detected in G. sinensis spines and G. microphylla spines. The differential metabolites are mainly concentrated in flavonoids and phenolic acids. The stilbenoid,diarylheptanoid and gingerol biosynthesis are significantly enriched in differential metabolites (P < 0.05),and the metabolites of phenylpropanoid biosynthesis and flavonoid biosynthesis are more enriched.

Key words: Gleditsia sinensis, Gleditsia microphylla, spina gleditsiae, metabolome, differential metabolites, pathway enrichment analysis

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