John S Sperry

Summary

Affiliation: University of Utah
Country: USA

Publications

  1. doi request reprint Wood anatomy constrains stomatal responses to atmospheric vapor pressure deficit in irrigated, urban trees
    Susan E Bush
    Department of Biology, University of Utah, Salt Lake City, UT 84112, USA
    Oecologia 156:13-20. 2008
  2. ncbi request reprint Water transport in plants obeys Murray's law
    Katherine A McCulloh
    Department of Biology, University of Utah, Salt Lake City, Utah 84112, USA
    Nature 421:939-42. 2003
  3. ncbi request reprint Scaling of angiosperm xylem structure with safety and efficiency
    Uwe G Hacke
    Department of Biology, University of Utah, Salt Lake City, UT 84112, USA
    Tree Physiol 26:689-701. 2006
  4. ncbi request reprint Safety and efficiency conflicts in hydraulic architecture: scaling from tissues to trees
    John S Sperry
    Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112, USA
    Plant Cell Environ 31:632-45. 2008
  5. doi request reprint Predicting stomatal responses to the environment from the optimization of photosynthetic gain and hydraulic cost
    John S Sperry
    Department of Biology, University of Utah, 257 S 1400E, Salt Lake City, UT, 84112, USA
    Plant Cell Environ . 2016
  6. doi request reprint Pragmatic hydraulic theory predicts stomatal responses to climatic water deficits
    John S Sperry
    Department of Biology, University of Utah, Salt Lake City, UT, 84112, USA
    New Phytol 212:577-589. 2016
  7. doi request reprint Rare pits, large vessels and extreme vulnerability to cavitation in a ring-porous tree species
    Mairgareth A Christman
    Institute for Ecohydrology Research, 1111 Kennedy Place Ste 4, Davis, CA 95616, USA
    New Phytol 193:713-20. 2012
  8. doi request reprint Hydraulic limits preceding mortality in a piñon-juniper woodland under experimental drought
    Jennifer A Plaut
    Department of Biology, MSC03 2020, 1 University of New Mexico, Albuquerque, NM 87131 0001, USA
    Plant Cell Environ 35:1601-17. 2012
  9. doi request reprint Deviation from symmetrically self-similar branching in trees predicts altered hydraulics, mechanics, light interception and metabolic scaling
    Duncan D Smith
    Department of Biology, University of Utah, Salt Lake City, UT, 84112, USA
    New Phytol 201:217-29. 2014
  10. doi request reprint Calibration of thermal dissipation sap flow probes for ring- and diffuse-porous trees
    Susan E Bush
    Department of Biology, University of Utah, Salt Lake City, UT 84112, USA
    Tree Physiol 30:1545-54. 2010

Detail Information

Publications26

  1. doi request reprint Wood anatomy constrains stomatal responses to atmospheric vapor pressure deficit in irrigated, urban trees
    Susan E Bush
    Department of Biology, University of Utah, Salt Lake City, UT 84112, USA
    Oecologia 156:13-20. 2008
    ....
  2. ncbi request reprint Water transport in plants obeys Murray's law
    Katherine A McCulloh
    Department of Biology, University of Utah, Salt Lake City, Utah 84112, USA
    Nature 421:939-42. 2003
    ..Our measurements of plant xylem indicate that these conduits conform to the Murray's law optimum as long as they do not function additionally as supports for the plant body...
  3. ncbi request reprint Scaling of angiosperm xylem structure with safety and efficiency
    Uwe G Hacke
    Department of Biology, University of Utah, Salt Lake City, UT 84112, USA
    Tree Physiol 26:689-701. 2006
    ..This was consistent with an underlying scaling of L to D(3/2) across species. Pit flow resistance did not increase with cavitation safety, suggesting that cavitation pressure was not related to mean pit membrane porosity...
  4. ncbi request reprint Safety and efficiency conflicts in hydraulic architecture: scaling from tissues to trees
    John S Sperry
    Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112, USA
    Plant Cell Environ 31:632-45. 2008
    ..The buffering effect of capacitance on the magnitude of transpiration-induced xylem tension appears to be coupled to cavitation resistance, possibly alleviating safety versus efficiency trade-offs...
  5. doi request reprint Predicting stomatal responses to the environment from the optimization of photosynthetic gain and hydraulic cost
    John S Sperry
    Department of Biology, University of Utah, 257 S 1400E, Salt Lake City, UT, 84112, USA
    Plant Cell Environ . 2016
    ..The advantage of the optimization approach is the absence of empirical coefficients, applicability to dry as well as wet soil, and prediction of plant hydraulic status along with gas exchange...
  6. doi request reprint Pragmatic hydraulic theory predicts stomatal responses to climatic water deficits
    John S Sperry
    Department of Biology, University of Utah, Salt Lake City, UT, 84112, USA
    New Phytol 212:577-589. 2016
    ..Promising initial performance suggests the theory could be useful in improving ecosystem models. Better understanding of the variation in hydraulic properties along the root-stem-leaf continuum will simplify parameterization...
  7. doi request reprint Rare pits, large vessels and extreme vulnerability to cavitation in a ring-porous tree species
    Mairgareth A Christman
    Institute for Ecohydrology Research, 1111 Kennedy Place Ste 4, Davis, CA 95616, USA
    New Phytol 193:713-20. 2012
    ..22 MPa. • The results confirm the rare pit prediction that a significant fraction of large vessels in Q. gambelii experience high probability of failure by air-seeding...
  8. doi request reprint Hydraulic limits preceding mortality in a piñon-juniper woodland under experimental drought
    Jennifer A Plaut
    Department of Biology, MSC03 2020, 1 University of New Mexico, Albuquerque, NM 87131 0001, USA
    Plant Cell Environ 35:1601-17. 2012
    ..Hydraulic limits to gas exchange, not hydraulic failure per se, promoted drought-related mortality in piñon pine...
  9. doi request reprint Deviation from symmetrically self-similar branching in trees predicts altered hydraulics, mechanics, light interception and metabolic scaling
    Duncan D Smith
    Department of Biology, University of Utah, Salt Lake City, UT, 84112, USA
    New Phytol 201:217-29. 2014
    ..65. Architectural diversity appears to matter considerably for whole-tree hydraulics, mechanics, photosynthesis and potentially metabolic scaling. Optimal architectures likely exist that maximize carbon gain per structural investment...
  10. doi request reprint Calibration of thermal dissipation sap flow probes for ring- and diffuse-porous trees
    Susan E Bush
    Department of Biology, University of Utah, Salt Lake City, UT 84112, USA
    Tree Physiol 30:1545-54. 2010
    ....
  11. pmc The roles of hydraulic and carbon stress in a widespread climate-induced forest die-off
    William R L Anderegg
    Department of Biology, Stanford University, Stanford, CA 94305, USA
    Proc Natl Acad Sci U S A 109:233-7. 2012
    ..Our results illuminate proximate mechanisms underpinning recent aspen forest mortality and provide guidance for understanding and projecting forest die-offs under climate change...
  12. doi request reprint Vulnerability curves by centrifugation: is there an open vessel artefact, and are 'r' shaped curves necessarily invalid?
    John S Sperry
    Biology Department, University of Utah, 257 S 1400 E, Salt Lake City, UT 84112, USA
    Plant Cell Environ 35:601-10. 2012
    ..Nevertheless, confirming curves with native embolism and dehydration data is recommended...
  13. ncbi request reprint Patterns in hydraulic architecture and their implications for transport efficiency
    Katherine A McCulloh
    Department of Biology, University of Utah, Salt Lake City, Utah, 84112, USA
    Tree Physiol 25:257-67. 2005
    ..In general, the observed architectural patterns are consistent with the maximization of transport efficiency operating within mechanical constraints...
  14. ncbi request reprint Testing the 'rare pit' hypothesis for xylem cavitation resistance in three species of Acer
    Mairgareth A Christman
    Department of Biology, University of Utah, Salt Lake City, UT 84025, USA
    New Phytol 182:664-74. 2009
    ..Adjustments in membrane properties and extent of pitting per vessel apparently combine to influence cavitation resistance across species...
  15. doi request reprint Single-vessel flow measurements indicate scalariform perforation plates confer higher flow resistance than previously estimated
    Mairgareth A Christman
    Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112, USA
    Plant Cell Environ 33:431-43. 2010
    ..In summary, we found scalariform plates of diverse morphology essentially double lumen flow resistance, impeding xylem flow much more than previously estimated...
  16. doi request reprint Linking irradiance-induced changes in pit membrane ultrastructure with xylem vulnerability to cavitation
    Lenka Plavcová
    Department of Renewable Resources, University of Alberta, Alberta, Canada T6G 2E3, and Department of Biology, University of Utah, Salt Lake City, UT 84025, USA
    Plant Cell Environ 34:501-13. 2011
    ..Scanning electron microscopy based estimates of pit membrane porosity probably overestimated real porosity as suggested by the results from the 'rare pit' model...
  17. ncbi request reprint Torus-margo pits help conifers compete with angiosperms
    Jarmila Pittermann
    Department of Biology, University of Utah, 257S 1400E, Salt Lake City, UT 84112, USA
    Science 310:1924. 2005
    ..The evolution of this membrane was as hydraulically important as that of vessels. Without their specialized pits, conifers would have 38 times the flow resistance, making conifer-dominated ecosystems improbable in an angiosperm world...
  18. pmc Analysis of freeze-thaw embolism in conifers. The interaction between cavitation pressure and tracheid size
    Jarmila Pittermann
    Department of Biology, University of Utah, Salt Lake City, Utah 84112, USA
    Plant Physiol 140:374-82. 2006
    ..Hence, smaller bubbles shrink faster than bigger ones. Last, we used the empirical relationship between Px and Df to model the freeze-thaw response in conifer species...
  19. doi request reprint Convergence in leaf size versus twig leaf area scaling: do plants optimize leaf area partitioning?
    Duncan D Smith
    Department of Biology, University of Utah, Salt Lake City, UT 84112, USA
    Ann Bot . 2016
    ..We then developed a model to explain why these relationships exist...
  20. doi request reprint What plant hydraulics can tell us about responses to climate-change droughts
    John S Sperry
    Department of Biology, University of Utah, Salt Lake City, UT, 84112, USA
    New Phytol 207:14-27. 2015
    ..Supply-loss theory predicts the climatic conditions that push vegetation over this risk threshold. The theory's simplicity and predictive power encourage testing and application in large-scale modeling...
  21. doi request reprint Does leaf shedding protect stems from cavitation during seasonal droughts? A test of the hydraulic fuse hypothesis
    Brett T Wolfe
    Department of Biology, University of Utah, Salt Lake City, UT, 84112, USA
    New Phytol 212:1007-1018. 2016
    ..However, leaf shedding is not universally effective at stabilizing Ψplant , suggesting that the main function of drought deciduousness may vary among species...
  22. doi request reprint Coordination between water transport capacity, biomass growth, metabolic scaling and species stature in co-occurring shrub and tree species
    Duncan D Smith
    Department of Biology, University of Utah, Salt Lake City, UT, 84112, USA
    Plant Cell Environ 37:2679-90. 2014
    ..75 of ideal scaling theory. A model based upon xylem anatomy and branching architecture consistently predicted the observed K by M scaling exponents but only when deviations from ideal symmetric branching were incorporated...
  23. pmc Hydraulic properties of rice and the response of gas exchange to water stress
    Volker Stiller
    Department of Biology, University of Utah, Salt Lake City, Utah 84112, USA
    Plant Physiol 132:1698-706. 2003
    ..8 kPa). The results indicate: (a) that xylem cavitation plays a major role in the reduction of plant hydraulic conductance during drought, and (b) that rice can readily reverse cavitation, possibly aided by nocturnal root pressure...
  24. ncbi request reprint Mechanical reinforcement of tracheids compromises the hydraulic efficiency of conifer xylem
    Jarmila Pittermann
    Department of Integrative Biology, University of California, Berkeley 94720, USA
    Plant Cell Environ 29:1618-28. 2006
    ....
  25. ncbi request reprint Cavitation fatigue and its reversal in sunflower (Helianthus annuus L.)
    Volker Stiller
    Department of Biology, University of Utah, Salt Lake City, UT 84112, USA
    J Exp Bot 53:1155-61. 2002
    ....
  26. ncbi request reprint Evaluation of centrifugal methods for measuring xylem cavitation in conifers, diffuse- and ring-porous angiosperms
    Yangyang Li
    State Key Laboratory of Soil Erosion and Dryland Farming, Institute of Soil and Water Conservation, CAS and MWR, Yangling Shaanxi, China
    New Phytol 177:558-68. 2008
    ..Close correspondence inspires confidence in both methods, each of which has unique advantages. The observation that ring-porous species operate at only a fraction of their potential conductivity at midday demands further study...