Evidence map›Paper›PMID 15197266›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2004

A plant plasma membrane Ca2+ pump is required for normal pollen tube growth and fertilization.

Morten Schiøtt, Shawn M Romanowsky, Lone Baekgaard, Mia Kyed Jakobsen, Michael G Palmgren, Jeffrey F Harper

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 140 papers.

0numbers the graph read from it
0cells of the map it votes in
140citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

140 citing papers in PubMed, 320 citations in OpenAlex.

  1. Review
  2. Genome-Wide Identification of the CaPlants (Basel, Switzerland) · 2026
    Article
  3. Genome-Wide Identification of the P-Type CaInternational journal of molecular sciences · 2026
    Article
  4. Article
  5. Article
  6. The endoplasmic reticulum-localized CaFrontiers in plant science · 2026
    Article
  7. Article
  8. Article
  9. Article
  10. Genome-Wide Identification and Expression Analysis ofInternational journal of molecular sciences · 2024
    Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. OsACA9, an Autoinhibited CaInternational journal of molecular sciences · 2024
    Article
  16. Review
  17. Article
  18. Simple cryopreservation protocol forFrontiers in plant science · 2023
    Article
  19. DORN1 Is Involved in Drought Stress Tolerance through a CaInternational journal of molecular sciences · 2022
    Article
  20. Structure, Function, and Applications of Soybean Calcium Transporters.International journal of molecular sciences · 2022
    Review

80 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 2 institutions in 1 country.

Morten SchiøttDepartment of Plant Biology, Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK-1871 Frederiksberg, Denmark.
Shawn M Romanowsky
Lone Baekgaard
Mia Kyed Jakobsen
Michael G Palmgren
Jeffrey F Harper
Scripps Research Institute · USUniversity of Nevada, Reno · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ca(2+) signals are thought to play important roles in plant growth and development, including key aspects of pollen tube growth and fertilization. The dynamics of a Ca(2+) signal are largely controlled by influx (through channels) and efflux (through pumps and antiporters). The Arabidopsis genome encodes 14 Ca(2+) pumps, 10 of which belong to a family of autoinhibited Ca(2+) ATPases (ACA) that are predicted to be activated by Ca(2+)/calmodulin. Here, we show that isoform ACA9 is expressed primarily in pollen and localized to the plasma membrane. Three independent T-DNA [portion of the Ti (tumor-inducing) plasmid that is transferred to plant cells] gene disruptions of ACA9 were found to result in partial male sterility. Complementation was observed by using a ACA9-yellow fluorescence protein (YFP) fusion that displayed plasma membrane localization. Mutant aca9 pollen displayed a reduced growth potential and a high frequency of aborted fertilization, resulting in a >80% reduction in seed set. These findings identify a plasma membrane Ca(2+) transporter as a key regulator of pollen development and fertilization in flowering plants.

Indexed as

ArabidopsisCalcium SignalingCalcium-Transporting ATPasesCell MembraneFertilizationGenome, PlantPlasmidsPollenCalcium-Transporting ATPases

Identifiers

PMID15197266
PMCPMC439006
OpenAlexW2086900967

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.