ArticleProceedings of the National Academy of Sciences of the United States of America2025
Loss of conductance between mesophyll symplasm and intercellular air spaces explains nonstomatal control of transpiration.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
7 citing papers in PubMed.
- Looking beyond stomata: a closer look at water relations in mosses suggests hidden mechanisms for regulating plant water loss.The New phytologist · 2026Article
- Rethinking Stomatal Temperature Responses Through a Hydraulic Lens.Plant, cell & environment · 2026Article
- An Optical Reporting Patch for Spatiotemporal Measurements of Water Activity in Complex Environments.Analytical chemistry · 2026Article
- Cell wall water shields stomata against falling leaf airspace humidity.The New phytologist · 2026Article
- Locating a control of plant and ecosystem water fluxes deep in the leaf.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Molecular Mechanisms and Experimental Strategies for Understanding Plant Drought Response.Plants (Basel, Switzerland) · 2026Review
- Loss of conductance between mesophyll symplasm and intercellular air spaces explains nonstomatal control of transpiration.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
Corrections and comments
- Commented on by
Authors and funding
12 authors.
Funding
Abstract
The conventional assumption is that stomatal conductance ([Formula: see text]) dominates the regulation of water and carbon dioxide fluxes between leaves and the atmosphere. Here, a nanoreporter of water status at the mesophyll cell surface and local xylem within intact maize leaves documents significant undersaturation of water vapor in the outside-xylem zone (OXZ) and a large loss of conductance of this zone ([Formula: see text]) at moderate xylem water stress, without stomatal closure or turgor loss. The ratio of the resistances [Formula: see text] serves as a predictive phenotype of undersaturation, nonstomatal regulation of transpiration, errors in standard gas exchange analysis, and an increase of intrinsic water use efficiency ([Formula: see text]). Cell-scale access to water status reveals symplasmic-apoplasmic disequilibrium and informs a biophysical model that can explain experimental observations quantitatively based on localization of variable conductance to the plasma membrane. This work opens paths of inquiry into the molecular basis and functional consequences of nonstomatal regulation of transpiration.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.