Chlorophyllide, the Probable Precursor of a Growth Inhibitor

Abstract

WHEN investigating the production of growth substances by Chlorella vulgaris var. viridis, difficulties were met which were ascribed to a growth-inhibiting substance, possibly Pratt's ‘chlorelline’1. Staphylococcus aureus proved to be a suitable test object for the growth inhibition. Small pieces of filter paper or agar slices containing concentrated and dried crude ether extracts of Chlorella were placed on agar plates seeded with bacteria. After 2–5 hr. of diffusion of the extract, and incubation of the bacteria at 37° C., clear inhibition zones were visible around the filter paper or agar slices.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1

    Pratt, R., Amer. J. Bot., 29, 142 (1942); 31, 418 (1944); 35, 634 (1948).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

BLAAUW-JANSEN, G. Chlorophyllide, the Probable Precursor of a Growth Inhibitor. Nature 174, 312–313 (1954). https://doi.org/10.1038/174312b0

Download citation

Further reading

Comments

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.