Letter | Published:

Seed-borne microorganisms stimulate seedcorn maggot egg laying

Naturevolume 256pages487488 (1975) | Download Citation

Subjects

Abstract

LARVAE of the seedcorn maggot, Hylemya platura (Meigen) may damage or kill young plants of many crop species by feeding on the cotyledons and plumules (Fig. 1). Damage may be caused by larvae already present in the soil before the seeds are planted1 or by larvae that hatch from eggs laid near germinating seeds2,3. It has been assumed that the stimulus for oviposition is provided by the germinating seeds themselves but we suspected that seed-borne microoiganisms growing on seed exudates could produce metabolites that promote oviposition. Many metabolic processes begin at the onset of seed germination, and concurrently organic substances are leached from the seeds which provide substrates for microorganisms. We now report that microorganisms growing on substrates from seeds produce metabolites which simulate egg laying in H. platura, and that germinating microorganism-free seeds are not stimulatory. This is an excellent example of a complex ecological interaction between an insect pest, the host plant and organisms of the microenvironment.

References

  1. 1

    Miller, L. A., and McClanahan, R. J., Can. Ent. 92, 210–221 (1960).

  2. 2

    Barlow, C. A., Ent. exp. appl., 8, 83–95 (1965).

  3. 3

    Yu, C. C., Webb, D. R., Kuhr, R. J., and Eckenrode, C. J., Environ. Ent. (in the press).

  4. 4

    Harris, C. R., Svec, H. J., and Begg, J. A., J. econ. Ent., 59, 407–410 (1966).

  5. 5

    Horsfall, W. R., Mosquito News, 16, 66–71 (1956).

  6. 6

    Harman, G. E., and Pfleger, F. L., Phytopathology, 64, 1339–1344 (1974).

  7. 7

    Buchanan, R. E., and Gibbons, N. E., Bergy's Manual of Determinative Bacteriology, ninth ed. (Williams and Wilkins, Baltimore, 1974).

  8. 8

    Lodder, J., and Kreger-Van Rij, N. J. W., The Yeasts—A Taxonomic Study (Interscience, New York, 1952).

  9. 9

    Tette, J. P., in Pheromones (edit. by Birch, M. C.), 399–410 (American Elsevier, New York, 1974).

Download references

Author information

Affiliations

  1. New York State Agricultural Experiment Station, Cornell University, Geneva, New York, 14456

    • C. J. ECKENRODE
    • , G. E. HARMAN
    •  & D. R. WEBB

Authors

  1. Search for C. J. ECKENRODE in:

  2. Search for G. E. HARMAN in:

  3. Search for D. R. WEBB in:

About this article

Publication history

Received

Accepted

Issue Date

DOI

https://doi.org/10.1038/256487a0

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.