An endophytic bacterium isolated from Panax ginseng C.A. Meyer enhances growth, reduces morbidity, and stimulates ginsenoside biosynthesis

- Endophytic bacteria in Panax ginseng were screened by microbial inoculation.
- Paenibacillus polymyxa inoculated by foliar application/irrigation stimulated ginseng growth.
- P. polymyxa increased total ginsenoside content in inoculated plants.
- Endophytes can be used to enhance production and prevent diseases in ginseng.