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Bacterial endophytes from ginseng and their biotechnological application

Journal of Ginseng Research 2022년 46권 1호 p.1 ~ 10
Chu Luan Luong, 배한홍,
소속 상세정보
 ( Chu Luan Luong ) - Phenikaa University Faculty of Biotechnology, Chemistry and Environmental Engineering
배한홍 ( Bae Han-Hong ) - Yeungnam University Department of Biotechnology

Abstract


Ginseng has been well-known as a medicinal plant for thousands of years. Bacterial endophytes ubiquitously colonize the inside tissues of ginseng without any disease symptoms. The identification of bacterial endophytes is conducted through either the internal transcribed spacer region combined with ribosomal sequences or metagenomics. Bacterial endophyte communities differ in their diversity and composition profile, depending on the geographical location, cultivation condition, and tissue, age, and species of ginseng. Bacterial endophytes have a significant effect on the growth of ginseng through indole-3-acetic acid (IAA) and siderophore production, phosphate solubilization, and nitrogen fixation. Moreover, bacterial endophytes can protect ginseng by acting as biocontrol agents. Interestingly, bacterial endophytes isolated from Panax species have the potential to produce ginsenosides and bioactive metabolites, which can be used in the production of food and medicine. The ability of bacterial endophytes to transform major ginsenosides into minor ginsenosides using β-glucosidase is gaining increasing attention as a promising biotechnology. Recently, metabolic engineering has accelerated the possibilities for potential applications of bacterial endophytes in producing beneficial secondary metabolites.

키워드

Bacterial endophytes; Biotransformation; Ginseng; Ginseng pathogens; Ginsenosides

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