Biotechnology Bulletin ›› 2023, Vol. 39 ›› Issue (5): 254-266.doi: 10.13560/j.cnki.biotech.bull.1985.2022-1080

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Analysis of Amino Acid Metabolism Difference Between Fruiting Body and Mycelium of Taiwanofungus camphoratus by LC-QTOF-MS Metabonomics

ZHENG Huan1,2(), LIN Dong-mei1, LIU Jun-yuan2, ZHANG Yin-lian2, LIN Biao-sheng3, LIN Zhan-xi1, LI Jing1()   

  1. 1. JUNCAO Sciences and Technology College of Fujian Agriculture and Forestry University, National Engineering Research Center of JUNCAO Technology, Fuzhou 350002
    2. College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002
    3. College of Life Sciences, Longyan University, Longyan 364012
  • Received:2022-09-01 Online:2023-05-26 Published:2023-06-08
  • Contact: LI Jing E-mail:2940251107@qq.com;13959197195@163.com

Abstract:

To analyze the amino acid differences in the metabolism of the fruiting body and mycelium of Taiwanofungus camphoratus, the LC-QTOF-MS system spectrometry was used to analyze the metabolome of three groups of samples, including the fruiting body and mycelium of T. camphoratus, and the SIMCA software(v16.0.2)was used to screen and identify the main amino acid metabolites, seek important differential metabolites, analyze important metabolic pathways, and tap potential markers for diversity analysis. Principal component analysis(PCA)and orthogonal projections to latent structures- discriminant analysis(OPLS-DA)among the samples demonstrated that there were differences among samples under negative ion conditions. Under the condition of t-test P < 0.05 and VIP > 1, 288 metabolites were significantly different between the fruiting body(ACFB)and the mycelium cultured in liquid for 14 d(ACM-14), 15 of them were the main amino acids. There were 332 significantly different metabolites between in ACFB and the mycelium cultured in liquid for 28 d(ACM-28), 11 of them were the main amino acids. There were 283 significantly different metabolites between ACM-14 and ACM-28, of which 14 were the main amino acids. The difference of amino acid metabolism between the fruiting body and mycelia of Taiwanofungus camphoratus was greater than that between the mycelia, especially the difference of L-arginine. All above results may provide a theoretical basis for studying the differences of amino acid metabolism in fruiting body and mycelium of T. camphoratus, mining potential marker metabolites and developing products.

Key words: Taiwanofungus camphoratus, LC-QTOF-MS, fruiting body, mycelium, amino acid metabolism