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Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (30): 103-113.doi: 10.11924/j.issn.1000-6850.casb2024-0055

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Analysis of Volatile Components of Endophytic Fungus HDM07 in Cannabis sativa L.

XING Xiangyu1(), CONG Tianyue1, GUAN Xin1, QI Kexiang1, LI Wanru1, ZHANG He1, YOU Mengyao1, WU Tong2(), ZHENG Chunying1()   

  1. 1 Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080
    2 Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education &Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Molecular Biology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080
  • Received:2024-01-10 Revised:2024-04-15 Online:2024-10-25 Published:2024-10-23

Abstract:

This study aims to exploit volatile components of endophytic fungus HDM07 isolated from Cannabis sativa L., and to explore the biosynthetic pathway of secondary metabolites from HDM07. The research took the endophytic fungus HDM07 obtained from Cannabis sativa L. as the subject. GC-MS and retrieval mass spectrometry database were employed to identify the volatile components in both the fermentation broth and mycelium of HDM07. Morphological observation and 18S rDNA sequence analysis were conducted for strain identification. Results indicated that the method of GC-MS and mass spectrometry analysis, along with database retrieval from endophytic fungi HDM07, determined 11 volatile components in the fermented liquid. Furthermore, fungus HDM07 revealed 14 volatile constituents in mycelium and Cannabis sativa L. leaf identified 12 elements. In a blank reference substance solution (PDB medium), appraisal revealed 7 ingredients. The endophytic fungus HDM07 was identified as Alternaria alternate. These findings suggest that the synthesis pathways of volatile components in HDM07 fermentation broth and mycelia are both related yet distinct. Both the fermentation broth and mycelium of endophytic fungus HDM07 contained similar or identical volatile components to those found in Cannabis sativa L., and also contained unique ones, indicating a certain correlation between the strain and its host plant's synthesis of volatile components.

Key words: Cannabis sativa L., endophytic fungus HDM07 from Cannabis sativa L., 18S rDNA sequence analysis, GC-MS, volatile component