Evidence map›Paper›PMID 21423149›Full record

ArticleThe EMBO journal2011

Central functions of bicarbonate in S-type anion channel activation and OST1 protein kinase in CO2 signal transduction in guard cell.

Shaowu Xue, Honghong Hu, Amber Ries, Ebe Merilo, Hannes Kollist, Julian I Schroeder

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed
13.9field-weighted citation impact, top 1% of its field
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

100 citing papers in PubMed, 197 citations in OpenAlex.

  1. Review
  2. Article
  3. Antisense reduction in NADP-ME in the CThe New phytologist · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Stomatal COScience advances · 2022
    Article
  15. Elevated COThe New phytologist · 2022
    Article
  16. Review
  17. Review
  18. Article
  19. Raf-like kinases and receptor-like (pseudo)kinase GHR1 are required for stomatal vapor pressure difference response.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  20. Review

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

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 3 countries.

Shaowu XueDivision of Biological Sciences, Cell and Developmental Biology Section, University of California, San Diego, La Jolla, CA, USA.
Honghong Hu
Amber Ries
Ebe Merilo
Hannes Kollist
Julian I Schroeder
University of California, San Diego · USUniversity of Tartu · EEShanxi University · CN

Funding

STRESS HORMONE SIGNAL TRANSDUCTION IN ARABIDOPSISR01GM060396 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SCHROEDER, JULIAN I · 2000 to 2023
$7.4M
NIGMS NIH HHS GM060396NIGMS NIH HHS R01 GM060396
6 · The paper itself

Abstract

Plants respond to elevated CO(2) via carbonic anhydrases that mediate stomatal closing, but little is known about the early signalling mechanisms following the initial CO(2) response. It remains unclear whether CO(2), HCO(3)(-) or a combination activates downstream signalling. Here, we demonstrate that bicarbonate functions as a small-molecule activator of SLAC1 anion channels in guard cells. Elevated intracellular [HCO(3)(-)](i) with low [CO(2)] and [H(+)] activated S-type anion currents, whereas low [HCO(3)(-)](i) at high [CO(2)] and [H(+)] did not. Bicarbonate enhanced the intracellular Ca(2+) sensitivity of S-type anion channel activation in wild-type and ht1-2 kinase mutant guard cells. ht1-2 mutant guard cells exhibited enhanced bicarbonate sensitivity of S-type anion channel activation. The OST1 protein kinase has been reported not to affect CO(2) signalling. Unexpectedly, OST1 loss-of-function alleles showed strongly impaired CO(2)-induced stomatal closing and HCO(3)(-) activation of anion channels. Moreover, PYR/RCAR abscisic acid (ABA) receptor mutants slowed but did not abolish CO(2)/HCO(3)(-) signalling, redefining the convergence point of CO(2) and ABA signalling. A new working model of the sequence of CO(2) signalling events in gas exchange regulation is presented.

Indexed as

Abscisic AcidAnionsArabidopsisArabidopsis ProteinsBicarbonatesCalciumCarbon DioxideCytoplasmElectrophysiologyMembrane ProteinsPlant Growth RegulatorsProtein KinasesSignal TransductionAbscisic AcidAnionsArabidopsis ProteinsBicarbonatesCalciumCarbon DioxideMembrane ProteinsOST1 protein, ArabidopsisPlant Growth RegulatorsProtein KinasesSLAC1 protein, Arabidopsis

Identifiers

PMID21423149
PMCPMC3102275
OpenAlexW2095609878

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.