Evidence map›Paper›PMID 29628371›Full record

ArticleCurrent biology : CB2018

Direct Control of SPEECHLESS by PIF4 in the High-Temperature Response of Stomatal Development.

On Sun Lau, Zhuojun Song, Zimin Zhou, Kelli A Davies, Jessica Chang, Xin Yang, Shenqi Wang, Doris Lucyshyn, Irene Hui Zhuang Tay, Philip A Wigge and 1 more

Abstract read
In one paragraph

Article in Current biology : CB, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

82 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Identification of thePlants (Basel, Switzerland) · 2026
    Article
  8. Article
  9. Future heatwave conditions inhibit COThe New phytologist · 2026
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Impact of climate-driven changes in temperature on stomatal anatomy and physiology.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  20. The differential transpiration response of plants to stress.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review

22 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

On Sun LauDepartment of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Singapore; Department of Biology, Stanford University, Stanford, CA 94305, USA. Electronic address: onsunlau@nus.edu.sg.
Zhuojun SongDepartment of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Singapore.
Zimin ZhouDepartment of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Singapore.
Kelli A DaviesDepartment of Biology, Stanford University, Stanford, CA 94305, USA.
Jessica ChangDepartment of Biology, Stanford University, Stanford, CA 94305, USA.
Xin YangDepartment of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Singapore.
Shenqi WangDepartment of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Singapore.
Doris LucyshynDepartment of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, UK.
Irene Hui Zhuang TayDepartment of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Singapore.
Philip A WiggeDepartment of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, UK; Sainsbury Laboratory, University of Cambridge, 47 Bateman Street, Cambridge CB2 1LR, UK.
Dominique C BergmannDepartment of Biology, Stanford University, Stanford, CA 94305, USA; Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305, USA. Electronic address: bergmann@stanford.edu.

Funding

Supplement to Enhance Wellness and Resiliency in the Graduate EnvironmentT32GM007276 · NIGMS · STANFORD UNIVERSITY · PI MORRISON, ASHBY J. · 1985 to 2023
$32.9M
Control of epidermal self-renewing populations by bHLH and MAPK regulatory systemR01GM086632 · NIGMS · STANFORD UNIVERSITY · PI BERGMANN, DOMINIQUE C · 2009 to 2015
$1.7M
Howard Hughes Medical InstituteNIGMS NIH HHS R01 GM086632NIGMS NIH HHS T32 GM007276
6 · The paper itself

Abstract

Environmental factors shape the phenotypes of multicellular organisms. The production of stomata-the epidermal pores required for gas exchange in plants-is highly plastic and provides a powerful platform to address environmental influence on cell differentiation [1-3]. Rising temperatures are already impacting plant growth, a trend expected to worsen in the near future [4]. High temperature inhibits stomatal production, but the underlying mechanism is not known [5]. Here, we show that elevated temperature suppresses the expression of SPEECHLESS (SPCH), the basic-helix-loop-helix (bHLH) transcription factor that serves as the master regulator of stomatal lineage initiation [6, 7]. Our genetic and expression analyses indicate that the suppression of SPCH and stomatal production is mediated by the bHLH transcription factor PHYTOCHROME-INTERACTING FACTOR 4 (PIF4), a core component of high-temperature signaling [8]. Importantly, we demonstrate that, upon exposure to high temperature, PIF4 accumulates in the stomatal precursors and binds to the promoter of SPCH. In addition, we find SPCH feeds back negatively to the PIF4 gene. We propose a model where warm-temperature-activated PIF4 binds and represses SPCH expression to restrict stomatal production at elevated temperatures. Our work identifies a molecular link connecting high-temperature signaling and stomatal development and reveals a direct mechanism by which production of a specific cell lineage can be controlled by a broadly expressed environmental signaling factor.

Indexed as

ArabidopsisArabidopsis ProteinsBasic Helix-Loop-Helix ProteinsCell DifferentiationCell LineageGene Expression Regulation, PlantHot TemperaturePhytochromePlant DevelopmentPlant StomataSignal TransductionTemperatureTranscription FactorsArabidopsis ProteinsBasic Helix-Loop-Helix ProteinsPhytochromePIF4 protein, ArabidopsisSPEECHLESS protein, ArabidopsisTranscription Factorsdevelopmental plasticityelevated ambient temperatureenvironmental signalingPHYTOCHROME-INTERACTING FACTOR 4PIF4SPCHSPEECHLESSstomatal development

Identifiers

PMID29628371
PMCPMC5931714

What OpenQuestion holds

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Registered trials

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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.