Studying the properties of endophytic bacteria belonged to Pseudomonas sp. isolated from Ngoc Linh gingseng Panax vietnamensis

https://doi.org/10.31130/ud-jst.2025.018

Abstract: 355 | PDF: 230

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Author

  • Ho Le Han
    The University of Danang - University of Science and Technology, Vietnam
    Tran Thi Ngoc Thu
    The University of Danang - University of Technology and Education, Vietnam

Keywords:

Auxin
Isolation
Ngoc Linh ginseng
Endophytic bacteria

Abstract

Ngoc Linh ginseng (P.vietnamensis) contains many biologically active substances. Endophytic bacteria on this plant also significantly affect its quality. Many studies in the world have shown that Bacillus and Pseudomonas are the dominant endogenous bacteria in the isolation process. This study isolated Pseudomonas sp.HS6-2 and examined its outstanding biological characteristics that can affect the quality and growth of Ngoc Linh ginseng. The results showed that the isolated bacteria were sensitive to the antibiotics Cefadroxil, Tetracycline, Ampicillin, Amoxicillin, and Cefpodoxim at concentrations of 25 and 50 mg/ml, but when the concentration of this antibiotic reached 1000 mg/ml, the antibiotic resistance of the bacteria disappeared. A special ability of the bacteria is to produce indole-3-acetic acid at high concentrations of 116.74 ± 5.0 mg/ml when tested with various concentrations of tryptophan in the culture medium.

References

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Published

Mar 31, 2025
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How to Cite
Hân, H. L., and T. T. N. Thư. “Studying the Properties of Endophytic Bacteria Belonged to Pseudomonas Sp. Isolated from Ngoc Linh Gingseng Panax Vietnamensis”. The University of Danang - Journal of Science and Technology, vol. 23, no. 3, Mar. 2025, pp. 64-67, doi:10.31130/ud-jst.2025.018.

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