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Floral mimicry by a plant pathogen

Nature volume 362, pages 56–58 (1993)Cite this article

Abstract

INSECTS can effect sexual reproduction in some plant pathogens, such as the rust fungi, by carrying spermatia (gametes) between different mating types1–5. This function of insects is analogous to their role as pollinators of plants, and contrasts with their more widely known5–9 role as vectors of plant pathogens' infectious spores. Here I report an extraordinary case of pathogen-mediated floral mimicry that contributes to fungal reproduction. The rust fungus Puccinia monoica inhibits flowering in its host plants (Arabis species) and radically transforms host morphology, creating elevated clusters of infected leaves that mimic true flowers of unrelated species in shape, size, colour and nectar production. These fungal pseudoflowers attract insects which fertilize the rust. Because the pseudoflowers are highly successful in attracting pollinating insects, they may also affect the reproductive success of nearby flowering plants.

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References

  1. Craigie, J. H. Nature 120, 765–767 (1927).

    Article  ADS  Google Scholar 

  2. Buller, A. H. R. Researches on Fungi, Vol. VII, The Sexual Process in the Uredinales (University of Toronto, Toronto, 1950).

    Book  Google Scholar 

  3. Petersen, R. H. Bot. Rev. 40, 453–513 (1974).

    Article  Google Scholar 

  4. Savile, D. B. O. in Evolutionary Biology (eds Hecht, M. K., Steere, W. C. & Wallace, B.) 137–205 (Plenum, New York, 1976).

    Book  Google Scholar 

  5. Webber, J. F. & Gibbs, J. N. in Insect-Fungus Interactions (eds Wilding, N., Collins, N. M., Hammond, P. M. & Weber, J. F.) 161–189 (Academic, London, 1989).

    Book  Google Scholar 

  6. Jennersten, O. Oikos 40, 125–130 (1983).

    Article  Google Scholar 

  7. Batra, L. R. & Batra, S. W. T. Science 228, 1011–1013 (1985).

    Article  ADS  CAS  Google Scholar 

  8. Alexander, H. M. & Antonovics, J. J. Ecol. 76, 91–104 (1988).

    Article  Google Scholar 

  9. Alexander, H. M. & Maltby, A. Oecologia 84, 249–253 (1990).

    Article  ADS  Google Scholar 

  10. Index of Plant Diseases in the United States (US Department of Agriculture, Washington DC, 1960).

  11. Farr, D. F., Bills, G. F., Chamuris, G. P. & Rossman, A. Y. Fungi on Plants and Plant Products in the United States (American Phytopathological Society, St Paul, Minnesota, 1989).

    Google Scholar 

  12. Pleasants, J. M. Ecology 62, 1648–1661 (1981).

    Article  Google Scholar 

  13. Watt, W. B., Hoch, P. C. & Mills, S. G. Oecologia 14, 353–374 (1974).

    Article  ADS  Google Scholar 

  14. Kevan, P. G. in Handbook of Experimental Pollination Biology (eds Jones, C. E. & Little, R. J.) 3–30 (Van Nostrand Reinhold, New York, 1983).

    Google Scholar 

  15. Baker, H. G. & Hurd, P. D. A. Rev. Entomol. 13, 385–414 (1968).

    Article  Google Scholar 

  16. Weiss, M. R. Nature 354, 227–229 (1991).

    Article  ADS  Google Scholar 

  17. Craigie, J. H. Phytopathology 21, 1001–1040 (1931).

    Google Scholar 

  18. Stanton, M. & Galen, C. Oecologia 78, 477–485 (1989).

    Article  ADS  Google Scholar 

  19. Kearns, C. A. thesis, Univ. Maryland (1990).

  20. Van der Plank, J. E. Principles of Plant Infection (Academic, New York, 1975).

    Google Scholar 

  21. Feinsinger, P. Trends Evol. Ecol. 2, 123–126 (1987).

    Article  CAS  Google Scholar 

  22. Waser, N. M. in Handbook of Experimental Pollination Biology (eds Jones, C. E. & Little, R. J.) 277–292 (Van Nostrand Reinhold, New York, 1983).

    Google Scholar 

  23. Campbell, D. R. & Motten, A. F. Ecology 66, 554–563 (1985).

    Article  Google Scholar 

  24. Roy, B. A. thesis, Claremont Graduate School (1992).

  25. McIntosh, R. A. & Watson, I. A. in The Rust Fungi (eds Scott, K. J. & Chakravorty, A. K.) 121–149 (Academic, London, 1982).

    Google Scholar 

  26. Agrios, G. N. Plant Pathology (Academic, San Diego, California, 1988).

    Google Scholar 

  27. Alexander, H. M. in Plant Resistance to Herbivores and Pathogens: Ecology, Evolution, and Genetics (eds Fritz, R. S. & Simms, E. L.) 326–344 (University of Chicago Press, Chicago, 1992).

    Google Scholar 

  28. Sokal, R. R. & Rohlf, F. J. Biometry (Freeman, New York, 1981).

  29. Smith, I. Chromatographic and Electrophoretic Techniques, Vol. 1, Chromatography (Pitman, Bath, 1969).

    Google Scholar 

  30. Cummins, G. B. & Hiratsuka, Y. Illustrated Genera of Rust Fungi (American Phytopathological Society, St Paul, Minnesota, 1983).

    Google Scholar 

Download references

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Authors and Affiliations

  1. Botany Department, University of California, Davis, California, 95616

    B. A. Roy

  2. The Rancho Santa Ana Botanic Garden, Claremont, California, 91711

    B. A. Roy

  3. The Rocky Mountain Biological Laboratory, Gothic, Colorado, 81224, USA

    B. A. Roy

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Roy, B. Floral mimicry by a plant pathogen. Nature 362, 56–58 (1993). https://doi.org/10.1038/362056a0

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