Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Pterygospermin: the Antibacterial Principle of Moringa pterygosperma, Gaertn


THE discovery and use of penicillin and streptomycin has led to a search for similar antibiotics in other fungi and in higher plants. Systematic studies conducted in these laboratories1 have shown the possibilities of a number of plant materials, reported in Indian medicine, which contain antibiotic substances effective against both Gram-positive and Gram-negative organisms. In a recent publication2 a plant antibiotic effective against even acid-fast organisms has been described. The present communication deals with the antibacterial properties of the extracts of the root of Moringa pterygosperma.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    George, Mariam, et al., in the press.

  2. 2

    Raghunandana Rao, R., et al., Nature, 157, 441 (1946).

    ADS  Google Scholar 

  3. 3

    Ghosh, S., Chopra, R. N., and Dutt, A., Ind. J. Med. Research, 22, 785 (1935).

    CAS  Google Scholar 

  4. 4

    Chopra, R. N., De, P., and De, N. N., Ind. J. Med. Research, 20, 533 (1932).

    Google Scholar 

Download references

Author information



Rights and permissions

Reprints and Permissions

About this article

Cite this article

RAO, R., GEORGE, M. & PANDALAI, K. Pterygospermin: the Antibacterial Principle of Moringa pterygosperma, Gaertn. Nature 158, 745–746 (1946).

Download citation

Further reading


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing