食品科学 ›› 2022, Vol. 43 ›› Issue (6): 141-148.doi: 10.7506/spkx1002-6630-20210115-171

• 生物工程 • 上一篇    下一篇

利用RNAi技术研究基因PDIDSM_85260和PDIDSM_08010表达对柠檬烯转化生成α-松油醇的影响

张璐璐,范刚,李晓,任婧楠,潘思轶,黄文,何进   

  1. (1.河南工业大学粮油食品学院,河南郑州 450001;2.华中农业大学食品科学技术学院,环境食品学教育部重点实验室,湖北武汉 430070;3.华中农业大学生命科学技术学院,湖北武汉 430070)
  • 出版日期:2022-03-25 发布日期:2022-03-28
  • 基金资助:
    国家自然科学基金面上项目(31671824);国家自然科学基金青年科学基金项目(32101868)

Effect of the Inhibition of PDIDSM_85260 and PDIDSM_08010 Expression by RNA Interference on the Biotransformation of Limonene to α-Terpineol

ZHANG Lulu, FAN Gang, LI Xiao, REN Jingnan, PAN Siyi, HUANG Wen, HE Jin   

  1. (1. College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China; 2. Key Laboratory of Environment Correlative Dietology, Ministry of Education,College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; 3. College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China)
  • Online:2022-03-25 Published:2022-03-28

摘要: 前期工作通过组学数据分析、蛋白分离纯化以及质谱鉴定,发现一些基因可能参与调控柠檬烯微生物转化生成α-松油醇的过程,比如PDIDSM_85260和PDIDSM_08010等。为进一步验证这些基因的功能,利用RNAi技术构建了基因PDIDSM_85260和PDIDSM_08010的干涉载体,并通过农杆菌介导转化到指状青霉DSM62840的菌丝中,经过一系列实验的验证,得到干涉菌株,并对这两个基因的功能进行研究。结果表明,与野生型菌株相比,基因PDIDSM_85260和PDIDSM_08010的干涉菌株通过微生物转化得到的α-松油醇含量均有不同程度的下降,说明基因PDIDSM_85260和PDIDSM_08010可能参与调控柠檬烯的生物转化过程。

关键词: 柠檬烯生物转化;α-松油醇;RNAi;PDIDSM_85260;PDIDSM_08010

Abstract: Our previous results have shown that some genes such as PDIDSM_85260 and PDIDSM_08010 may be partly responsible for limonene biotransformation to α-terpineol as determined by analysis of genomic and transcriptomic data, protein separation and purification, and mass spectrometry. In order to explore the biological functions of the genes, RNA interference (RNAi) vectors for PDIDSM_85260 and PDIDSM_08010 were constructed and transformed into Penicillium digitatum DSM62840 by Agrobacterium tumefaciens-mediated transformation. RANi strains were obtained by a series of experiments, and the functions of the two genes were analyzed in P. digitatum DSM62840. It was found that the amount of α-terpineol produced by the silenced transformants obviously decreased compared to the wild-type strain, suggesting that PDIDSM_85260 and PDIDSM_08010 may participate in limonene biotransformation to α-terpineol.

Key words: limonene biotransformation; α-terpineol; RNAi; PDIDSM_85260; PDIDSM_08010

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