World's Best Scientists 2026 revealed!
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Plant Science and Agronomy
USA
2026

D-Index & Metrics

Plant Science and Agronomy

D-Index
110
Citations
57688
World Ranking
93
National Ranking
30

Research.com Recognitions

  • 2026 - Research.com Plant Science and Agronomy in United States Leader Award
  • 2022 - Research.com Plant Science and Agronomy in United States Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Botany
  • Xylem

The scientist’s investigation covers issues in Xylem, Botany, Hydraulic conductivity, Water transport and Cavitation. The concepts of his Xylem study are interwoven with issues in Ecology and Agronomy. His work on Climate change as part of general Ecology study is frequently connected to Increased stature and Basic knowledge, therefore bridging the gap between diverse disciplines of science and establishing a new relationship between them.

His Tracheid, Stomatal conductance, Water stress and Hydraulic conductance study in the realm of Botany interacts with subjects such as Embolism. The study incorporates disciplines such as Horticulture and Transpiration in addition to Hydraulic conductivity. His Cavitation research is multidisciplinary, incorporating elements of Photosynthesis and Animal science.

His most cited work include:

  • Mechanisms of plant survival and mortality during drought: why do some plants survive while others succumb to drought? (2316 citations)
  • Global convergence in the vulnerability of forests to drought (1256 citations)
  • Vulnerability of Xylem to Cavitation and Embolism (1195 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of investigation include Xylem, Botany, Water transport, Ecology and Cavitation. His Xylem research incorporates themes from Hydraulic conductivity and Transpiration. John S. Sperry has included themes like Conductance and Pressure gradient in his Hydraulic conductivity study.

His research on Botany often connects related topics like Composite material. His Ecology research focuses on subjects like Hydraulics, which are linked to Hydrology. His biological study spans a wide range of topics, including Photosynthesis, Soil science and Porosity.

He most often published in these fields:

  • Xylem (64.88%)
  • Botany (55.36%)
  • Water transport (30.36%)

What were the highlights of his more recent work (between 2015-2020)?

  • Ecology (27.38%)
  • Xylem (64.88%)
  • Climate change (8.93%)

In recent papers he was focusing on the following fields of study:

His scientific interests lie mostly in Ecology, Xylem, Climate change, Transpiration and Atmospheric sciences. His study in the field of Ecosystem, Forest ecology and Hydraulic conductivity is also linked to topics like Water transport. His research in Xylem intersects with topics in Canopy, Woody plant and Growing season.

His research integrates issues of Abundance, Carbon cycle, Vegetation and Biome in his study of Climate change. Within one scientific family, John S. Sperry focuses on topics pertaining to Water potential under Transpiration, and may sometimes address concerns connected to Tree species, Tropical trees, Leaf phenology and Abscission. His research on Atmospheric sciences also deals with topics like

  • Vapour Pressure Deficit which is related to area like Humidity and Terrestrial ecosystem,
  • Photosynthesis which is related to area like Cavitation.

Between 2015 and 2020, his most popular works were:

  • A multi-species synthesis of physiological mechanisms in drought-induced tree mortality (351 citations)
  • Weak tradeoff between xylem safety and xylem-specific hydraulic efficiency across the world's woody plant species (269 citations)
  • Drivers and Mechanisms of Tree Mortality in Moist Tropical Forests (152 citations)

In his most recent research, the most cited papers focused on:

  • Ecology
  • Botany
  • Thermodynamics

John S. Sperry mainly investigates Ecology, Xylem, Transpiration, Climate change and Hydraulic conductivity. His studies in Ecology integrate themes in fields like Specific leaf area, Environmental resource management and Current. His Xylem studies intersect with other subjects such as Context and Water transport.

His Transpiration study combines topics from a wide range of disciplines, such as Tropical trees, Atmospheric sciences and Water potential. The Climate change study combines topics in areas such as Abundance and Biome. John S. Sperry has researched Hydraulic conductivity in several fields, including Hydraulic efficiency and Woody plant.

Best Publications

  • Mechanisms of plant survival and mortality during drought: why do some plants survive while others succumb to drought?

    Nate G. McDowell;William T. Pockman;Craig D. Allen;David D. Breshears

  • Global convergence in the vulnerability of forests to drought

    Brendan Choat;Steven Jansen;Tim J. Brodribb;Hervé Cochard;Hervé Cochard

  • Vulnerability of Xylem to Cavitation and Embolism

    M. T. Tyree;J. S. Sperry

  • Plant responses to rising vapor pressure deficit.

    Charlotte Grossiord;Charlotte Grossiord;Thomas N. Buckley;Lucas A. Cernusak;Kimberly A. Novick

  • Trends in wood density and structure are linked to prevention of xylem implosion by negative pressure

    Uwe G. Hacke;John S. Sperry;William T. Pockman;Stephen D. Davis

  • A method for measuring hydraulic conductivity and embolism in xylem

    J. S. Sperry;J. R. Donnelly;M. T. Tyree

  • Survey and synthesis of intra- and interspecific variation in stomatal sensitivity to vapour pressure deficit

    R. Oren;J. S. Sperry;G. G. Katul;D. E. Pataki

  • Do Woody Plants Operate Near the Point of Catastrophic Xylem Dysfunction Caused by Dynamic Water Stress? : Answers from a Model

    Melvin T. Tyree;John S. Sperry

  • Functional and ecological xylem anatomy

    Uwe G. Hacke;John S. Sperry

  • A multi-species synthesis of physiological mechanisms in drought-induced tree mortality

    Henry D. Adams;Melanie J.B. Zeppel;Melanie J.B. Zeppel;William R.L. Anderegg;Henrik Hartmann

  • Water deficits and hydraulic limits to leaf water supply.

    J. S. Sperry;U. G. Hacke;R. Oren;J. P. Comstock

  • Xylem Embolism in Ring-Porous, Diffuse-Porous, and Coniferous Trees of Northern Utah and Interior Alaska

    John S. Sperry;Kirk L. Nichols;June E. M. Sullivan;Sonda E. Eastlack

  • Mechanism of water stress-induced xylem embolism.

    John S. Sperry;Melvin T. Tyree

  • Limitation of plant water use by rhizosphere and xylem conductance: results from a model

    J. S. Sperry;F. R. Adler;G. S. Campbell;J. P. Comstock

  • Root water uptake and transport: using physiological processes in global predictions.

    Robert B. Jackson;John S. Sperry;Todd E. Dawson

  • Scaling of angiosperm xylem structure with safety and efficiency.

    Uwe G. Hacke;John S. Sperry;James K. Wheeler;Laura Castro

  • Hydraulic constraints on plant gas exchange

    John S Sperry

  • The plant vascular system: evolution, development and functions

    William J. Lucas;Andrew Groover;Raffael Lichtenberger;Kaori Furuta

  • The roles of hydraulic and carbon stress in a widespread climate-induced forest die-off

    William R. L. Anderegg;Joseph A. Berry;Duncan D. Smith;John S. Sperry

  • Weak tradeoff between xylem safety and xylem-specific hydraulic efficiency across the world's woody plant species

    Sean M. Gleason;Sean M. Gleason;Mark Westoby;Steven Jansen;Brendan Choat

  • Vulnerability to xylem cavitation and the distribution of Sonoran Desert vegetation

    William T. Pockman;John S. Sperry

  • Stomatal conductance and photosynthesis vary linearly with plant hydraulic conductance in ponderosa pine

    Robert M. Hubbard;M. G. Ryan;V. Stiller;J. S. Sperry

  • XYLEM EMBOLISM IN RING-POROUS, DIFFUSE-POROUS, AND CONIFEROUS TREES OF

    Northern Utah;Interior Alaska;John S. Sperry;Kirk L. Nichols

Frequent Co-Authors

Uwe G. Hacke
Uwe G. Hacke University of Alberta
William R. L. Anderegg
William R. L. Anderegg University of Utah
Katherine A. McCulloh
Katherine A. McCulloh University of Wisconsin–Madison
William T. Pockman
William T. Pockman University of New Mexico
Melvin T. Tyree
Melvin T. Tyree Zhejiang Normal University
Steven Jansen
Steven Jansen University of Ulm
Nate G. McDowell
Nate G. McDowell Pacific Northwest National Laboratory
Anna T. Trugman
Anna T. Trugman University of California, Santa Barbara
Hervé Cochard
Hervé Cochard INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement
Frederick C. Meinzer
Frederick C. Meinzer Oregon State University

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