Physics in Perspective

, Volume 16, Issue 3, pp 371–389 | Cite as

Pollen Dispersal by Catapult: Experiments of Lyman J. Briggs on the Flower of Mountain Laurel

  • John R. Nimmo
  • Paula M. Hermann
  • M. B. Kirkham
  • Edward R. Landa
Article

Abstract

The flower of Kalmia latifolia L. employs a catapult mechanism that flings its pollen to considerable distances. Physicist Lyman J. Briggs investigated this phenomenon in the 1950s after retiring as longtime director of the National Bureau of Standards, attempting to explain how hydromechanical effects inside the flower’s stamen could make it possible. Briggs’s unfinished manuscript implies that liquid under negative pressure generates stress, which, superimposed on the stress generated from the flower’s growth habit, results in force adequate to propel the pollen as observed. With new data and biophysical understanding to supplement Briggs’s experimental results and research notes, we show that his postulated negative-pressure mechanism did not play the exclusive and crucial role that he credited to it, though his revisited investigation sheds light on various related processes. Important issues concerning the development and reproductive function of Kalmia flowers remain unresolved, highlighting the need for further biophysical advances.

Keywords

Biomechanics biophysics Lyman J. Briggs Kalmia latifolia elastic properties catapult negative pressure pollen dispersal botany plant-water relations 

References

  1. 1.
    Edward R. Landa and John R. Nimmo, “The Life and Scientific Contributions of Lyman J. Briggs,” Soil Science Society of America Journal 67 (2003) (3), 681–693, cover, i.Google Scholar
  2. 2.
    J. Edwards, D. Whitaker, S. Klionsky, and M. J. Laskowski, “A Record-Breaking Pollen Catapult,” Nature 435 (2005), 164; J. M. Skotheim and L. Mahadevan, “Physical Limits and Design Principles for Plant and Fungal Movements,” Science 308 (2005), 1308–1310.Google Scholar
  3. 3.
    Marcus J. King and Stephen L. Buchmann, “Bumble Bee–Initiated Vibration Release Mechanism of Rhododendron Pollen,” American Journal of Botany 82 (1995), 1407–1411.Google Scholar
  4. 4.
    W. J. Beal, “Agency of Insects in Fertilizing Plants,” American Naturalist 1 (1867), 254–260.Google Scholar
  5. 5.
    A. C. Leopold and P. E. Kreidemann, Plant Growth and Development (New York: McGraw Hill, 1975), 2nd ed.Google Scholar
  6. 6.
    Massimo Bianchini and Ettore Pacini, “Explosive Anther Dehiscence in Ricinus communis L. Involves Cell Wall Modifications and Relative Humidity,” International Journal of Plant Sciences (1996), 739–745.Google Scholar
  7. 7.
    P.F. Stevens, J. Luteyn, E. G. H. Oliver, T. L. Bell, E. A. Brown, R. K. Crowden, A. S. George, G. J. Jordan, P. Ladd, and K. Lemson, “Ericaceae,” in The Families and Genera of Vascular Plants, ed. K. Kubitzki (Berlin: Springer, 2004), 6:145–194.Google Scholar
  8. 8.
    A. C. Crawford, Mountain Laurel, a Poisonous Plant. Bureau of Plant Industry, U. S. Department of Agriculture, Bulletin No. 121, 1908; J. E. Ebinger, “Laurels in the Wild”, in Kalmia: The Laurel Book II, ed. R.A. Jayne (Portland, OR: Timber Press, 1988), 15–42; W. B. Zomlefer, Guide to Flowering Plant Families. (Chapel Hill, NC: University of North Carolina Press, 1994).Google Scholar
  9. 9.
    Ebinger, “Laurels in the Wild” (ref. 8), 21.Google Scholar
  10. 10.
    Karl J. Niklas, Plant Biomechanics: An Engineering Approach to Plant Form and Function. (Chicago: University of Chicago Press, 1992), 109–112, describes the flinging biomechanics in the related species Kalmia angustifolia. Google Scholar
  11. 11.
    B. Rathcke and L. Real, “Autogamy and Inbreeding Depression in Mountain Laurel, Kalmia latifolia (Ericaceae),” American Journal of Botany 80 (1993), 143–146; Beal, “Agency of Insects” (ref. 4); Ebinger, “Laurels in the Wild” (ref. 8).Google Scholar
  12. 12.
    Landa and Nimmo, “Life and Scientific Contributions of Briggs” (ref. 1).Google Scholar
  13. 13.
    Lyman James Briggs, The Mechanics of Soil Moisture. USDA Bureau of Soils, Bulletin No. 10, 1897.Google Scholar
  14. 14.
    John R. Nimmo and Edward R. Landa, “The Soil-Physics Contributions of Edgar Buckingham,” Soil Science Society of America Journal 69 (2005), 328–342.Google Scholar
  15. 15.
    L. J. Briggs, “Effect of Spin and Speed on the Lateral Deflection (Curve) of a Baseball; and the Magnus Effect for Smooth Spheres,” American Journal of Physics 27 (1959), 589–596.Google Scholar
  16. 16.
    U. Zimmermann, H. Schneider, L. H. Wegner, and A. Haase, “Water Ascent in Tall Trees: Does Evolution of Land Plants Rely on a Highly Metastable State?” New Phytologist 162 (2004), 575–615; M. B. Kirkham, Principles of Soil and Plant Water Relations. (Burlington, MA: Elsevier, 2005), 518; N. Michele Holbrook and Maciej A. Zwieniecki, “Transporting Water to the Tops of Trees,” Physics Today 61 (1) (2008), 76–77; Harvey R. Brown, “The Theory of the Rise of Sap in Trees—Some Historical and Conceptual Remarks,” Physics in Perspective 15 (2013), 320–358.Google Scholar
  17. 17.
    Kemmerer, e-mail to Landa, May 7, 2003.Google Scholar
  18. 18.
    J.M. Frankland, “Book Review: Progress in Solid Mechanics. vol. 1. I. N. Sneddon and R. Hill, eds.,” Science 132 (1960), 1144–1145.Google Scholar
  19. 19.
    Lyman J. Briggs, “Records Relating to Scientific Work, 1907–1962 Office Files of Lyman J. Briggs,” (College Park, MD: National Archives and Records Administration, 1954–1958) Record Group 167 (National Institute of Standards and Technology), entry 2, box 14, 1954–1958.Google Scholar
  20. 20.
  21. 21.
    Lionel S. Marks, Mechanical Engineers’ Handbook (New York: McGraw Hill, 1930), 3rd ed.Google Scholar
  22. 22.
    Samuel J. Record, The Mechanical Properties of Wood (New York: Wiley, 1914).Google Scholar
  23. 23.
    W. R. Gardner and C. F. Ehlig, “Physical Aspects of the Internal Water Relations of Plant Leaves,” Plant Physiology 40 (1965), 705.Google Scholar
  24. 24.
    Paula Hermann de Villamil, “Stamens in the Ericaceae—A Developmental Study,” PhD diss., Rutgers University, 1980.Google Scholar
  25. 25.
    The specimens were both cultivated (from Horticultural Garden, Rutgers University, NJ) and wild plants (Great Smoky Mountains, NC–TN). The stamens had been kept in formaline-acetic acid-alcohol. They were embedded in Paraplast, sectioned at 7-10 µm, stained with safranin-fast green, and observed under a compound microscope.Google Scholar
  26. 26.
    This behavior is as observed by Alarich Kress, “Funktion und Verhalten der Staubblätter von Kalmia,” Naturwissenschaftliche Rundschau 45 (1992), 278–279, who found that cut stamens immersed in a water bath continue to curl for a few hours after flinging.Google Scholar
  27. 27.
    Alarich Kress, private communication, March 24, 2009 referring to “Beobachtungen an Bluten von Kalmia latifolia L. (Ericaceae),” Phytologia 65 (1988) (4), 249–284.Google Scholar
  28. 28.
    Kress, “Funktion und Verhalten der Staubblätter von Kalmia” (ref. 27).Google Scholar
  29. 29.
    Paula M. Hermann and Barbara F. Palser, “Stamen Development in the Ericaceae. I. Anther Wall, Microsporogenesis, Inversion, and Appendages,” American Journal of Botany 87 (2000), 934-957, on 940.Google Scholar
  30. 30.
    Sharon J. Gerbode, Joshua R. Puzey, Andrew G. McCormick, and L. Mahadevan, “How the Cucumber Tendril Coils and Overwinds,” Science 337 (2012), 1087–1091.Google Scholar
  31. 31.
    L. J. Briggs, “The Living Plant as a Physical System,” Journal of the Washington Academy of Sciences 7 (1917), 89–111.Google Scholar
  32. 32.
    W. T. Swingle and L. J. Briggs, “Improvements in the Ultra-Violet Microscope,” Science 26 (1907), 180–183.Google Scholar
  33. 33.
    Allen V. Astin, “Lyman James Briggs 1874–1963,” Cosmos Club Bulletin (1977), 2–6.Google Scholar
  34. 34.
  35. 35.
    B. S. Meyer and D. B. Anderson, Plant Physiology (New York: D. Van Nostrand, 1952).Google Scholar

Copyright information

© Springer Basel (outside the USA) 2014

Authors and Affiliations

  • John R. Nimmo
    • 1
  • Paula M. Hermann
    • 2
  • M. B. Kirkham
    • 3
  • Edward R. Landa
    • 4
  1. 1.U.S. Geological SurveyMenlo ParkUSA
  2. 2.Departamento de Biología, Bioquímica y FarmaciaUniversidad Nacional del SurBahía BlancaArgentina
  3. 3.Department of AgronomyKansas State UniversityManhattanUSA
  4. 4.Department of Environmental Science and TechnologyUniversity of MarylandCollege ParkUSA

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