Letter | Published:

Protective Inoculation against a Plant Virus

Nature volume 131, page 468 (01 April 1933) | Download Citation



THE X virus of the potato, first described by Kenneth Smith1, is capable of considerable variation in virulence, as shown by its clinical expression on several of the Solanaceæ. If tobacco plants be inoculated from the potato and the virus maintained by passage over a long period, the clinical expression may pass from a more or less mild mottling of pale and dark green, to a stage in which the pale areas are bright yellow, ending in one in which the lesions become extensively necrotic. Inoculation with the virus in this latter stage causes young tobacco plants to remain in a dwarfed and crippled condition.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1.

    , Proc. Roy. Soc., B, 109, 251; 1931.

  2. 2.

    , Ann. App. Biol., 19, 550; 1932.

  3. 3.

    and , Ann App. Biol., 17, 691; 1930.

  4. 4.

    , Science, N.S., 73, 650; 1931.

  5. 5.

    , Contrib. of the Boyce Thompson Institute, 4, 359; 1932.

  6. 6.

    , reviewed in R. A. M., 11, 750; 1931.

Download references

Author information


  1. Potato Virus Research Institute, Cambridge. March 6.



  1. Search for REDCLIFFE N. SALAMAN 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.