{
  "abstract": "Summary Stomatal conductance to water vapour ( g s ) is typically considered to operate in coordination with photosynthesis ( A ) to balance carbon gain and water loss in an optimal manner. However, at high temperatures that suppress A , g s has been seen to increase or remain high – reducing the predictive accuracy of some stomatal conductance models. We investigated the temperature sensitivity of leaf‐level gas exchange and evaluated a temperature‐dependent modification of a widely used stomatal conductance model across a temperature gradient (30 to 40°C) in three tropical tree species ( Mallotus philippensis , Ficus congesta and Elaeocarpus grandis ) grown and measured under near‐ambient (420 ppm) or elevated (820 ppm) CO 2 , and under either constant or increasing vapour pressure deficit (VPD). Measured A and g s , as well as the model term g 1 , all exhibited a temperature sensitivity that was impacted by [CO 2 ] and VPD regime. Importantly, under both constant and increasing VPD, g 1 increased with leaf temperature. These findings demonstrate that the coupling between A and g s is not static but varies with temperature and environmental context, and that incorporating a representation of this thermal sensitivity provides a tractable improvement to models of plant carbon–water exchange under future climate conditions.",
  "abstract_shown": true,
  "affiliations": [
    "College of Science and Engineering James Cook University Cairns Qld 4878 Australia",
    "Department of Mathematics and Statistics, Faculty of Environment, Science and Economy University of Exeter Laver Building, North Park Road Exeter EX4 4QE UK",
    "AMAP University of Montpellier, CIRAD, CNRS, INRAE, IRD 34398 Montpellier France",
    "School of Life and Environmental Sciences The University of Sydney Sydney NSW 2006 Australia"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Alexander W. Cheesman",
      "orcid": "0000-0003-3931-5766"
    },
    {
      "affs": [
        1
      ],
      "name": "Peter Cox",
      "orcid": "0000-0002-0679-2219"
    },
    {
      "affs": [
        1
      ],
      "name": "Simon R. G. Jones",
      "orcid": "0000-0002-2653-2318"
    },
    {
      "affs": [
        2
      ],
      "name": "Kali B. Middleby",
      "orcid": "0000-0002-9323-0870"
    },
    {
      "affs": [
        0
      ],
      "name": "Lucas A. Cernusak",
      "orcid": "0000-0002-7575-5526"
    },
    {
      "affs": [
        3
      ],
      "name": "Peter J. Franks",
      "orcid": "0000-0002-4810-658X"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e41vye7x1wg0q.bib",
  "cited_by": 5,
  "doi": "10.1111/nph.71249",
  "fulltext_url": null,
  "id": "e41vye7x1wg0q",
  "issns": [
    "0028-646X",
    "1469-8137"
  ],
  "landing_url": "https://doi.org/10.1111/nph.71249",
  "language": "en",
  "licence": "CC-BY-NC",
  "licence_label": "CC BY-NC",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2306|Plant Water Relations and Carbon Dynamics"
    ]
  ],
  "openalex": "W7161403092",
  "pdf_url": null,
  "pmcid": "PMC13326507",
  "pmid": "42141816",
  "published": "2026-05-16",
  "publisher": "Wiley",
  "ris": "https://research.draconitic.com/paper/e41vye7x1wg0q.ris",
  "sources": [
    {
      "first_seen": "2026-11-08T13:20:55Z",
      "native_id": "W7161403092",
      "source": "openalex",
      "url": "https://doi.org/10.1111/nph.71249"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "openalex:2306|Plant Water Relations and Carbon Dynamics",
      "subfield": "climate"
    }
  ],
  "title": "Influence of vapour pressure deficit and CO 2 on the thermal sensitivity of stomatal function in tropical trees",
  "title_text": "Influence of vapour pressure deficit and CO 2 on the thermal sensitivity of stomatal function in tropical trees",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T13:21:21Z",
  "url": "https://research.draconitic.com/paper/e41vye7x1wg0q",
  "venue": "New Phytologist",
  "versions": []
}