Letter | Published:

Production of Growth-Substance by Clover Nodule Bacteria

Nature volume 142, pages 753754 (22 October 1938) | Download Citation



THIMANN1, using the standard Avena technique, showed that a growth-substance is produced in considerable amount in root nodules. He further-more claimed that the growth-substance produced is not derived from the meristematic tip of the nodule, but comes directly from the bacterial tissue. He found that the symptoms induced by 3-indole-acetic acid upon roots closely resembled those produced, in Molliard's work, by the action of sterile filtrate of nodule bacteria upon pea roots, and he consequently believed that the bacteria cultivated in laboratory media produce growth-substance in considerable amount.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1.

    , Proc. Nat. Acad. Sci., 22, 511–514 (1936).

  2. 2.

    , and , "Phytohormones", 54–55 (New York, 1937).

Download references

Author information


  1. Bacteriology Department, Rothamsted Experimental Station, Harpenden. Sept. 7.

    • H. K. CHEN


  1. Search for H. K. CHEN in:

About this article

Publication history




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.