Evidence map›Paper›PMID 41175232›Full record

ArticlePlanta2025

Morphological dormancy, embryo growth and pericarp restraint during crop and wild Apiaceae mericarp germination in response to ambient temperature.

Kazumi Nakabayashi, Lena M M Fatelnig, Matthew Walker, Sue Kennedy, James E Hourston, Ondřej Novák, Danuše Tarkowská, Miroslav Strnad, Frances Gawthrop, Tina Steinbrecher and 1 more

Abstract read
In one paragraph

Article in Planta, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Analysis of the Factors Affecting Germination ofPlants (Basel, Switzerland) · 2025
    Article
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

11 authors.

Kazumi NakabayashiDepartment of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK.ORCID http://orcid.org/0000-0002-4186-541X
Lena M M FatelnigDepartment of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK.ORCID http://orcid.org/0009-0009-1894-2614
Matthew WalkerDepartment of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK.ORCID http://orcid.org/0000-0002-7828-204X
Sue KennedyElsoms Seeds Ltd, Spalding, Lincolnshire, PE11 1QG, UK.
James E HourstonDepartment of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK.ORCID http://orcid.org/0000-0002-4183-8673
Ondřej NovákLaboratory of Growth Regulators, Institute of Experimental Botany, Palacký University Olomouc, Czech Academy of Sciences and Faculty of Science, 77900, Olomouc, Czech Republic.ORCID http://orcid.org/0000-0003-3452-0154
Danuše TarkowskáLaboratory of Growth Regulators, Institute of Experimental Botany, Palacký University Olomouc, Czech Academy of Sciences and Faculty of Science, 77900, Olomouc, Czech Republic.ORCID http://orcid.org/0000-0003-1478-1904
Miroslav StrnadLaboratory of Growth Regulators, Institute of Experimental Botany, Palacký University Olomouc, Czech Academy of Sciences and Faculty of Science, 77900, Olomouc, Czech Republic.ORCID http://orcid.org/0000-0002-2806-794X
Frances GawthropTozer Seeds Ltd, Cobham, Surrey, KT11 3EH, UK.ORCID http://orcid.org/0000-0003-1929-0936
Tina SteinbrecherDepartment of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK. Tina.Steinbrecher@rhul.ac.uk.ORCID http://orcid.org/0000-0003-3282-6029
Gerhard Leubner-MetzgerDepartment of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK. Gerhard.Leubner@rhul.ac.uk.ORCID http://orcid.org/0000-0002-6045-8713

Funding

Biotechnology and Biological Sciences Research Council BB/M00192X/1Biotechnology and Biological Sciences Research Council BB/M005186/1Biotechnology and Biological Sciences Research Council BB/M0111178/1Biotechnology and Biological Sciences Research Council BB/R021147/1European Regional Development Fund CZ.02.01.01/00/22_008/0004581Innovate UK TSB/131600Innovate UK TSB132858Univerzita Palackého v Olomouci IGA_PrF_2023_031
6 · The paper itself

Abstract

MAIN

conclusionApiaceae morphological dormancy and germination differ between crop and wild species, and among crop cultivars in the mechanical, hormonal and thermal mechanisms that control pericarp (fruit coat) weakening and pre-gremination embryo growth. The Apiaceae disperse morphologically (MD) or morphophysiologically dormant mericarps, indehicent fruits in which the single seed is encased by the pericarp (fruit coat) and the underdeveloped (small) embryo is embedded in abundant living endosperm tissue. Pre-germination embryo growth from an initial to a critical relative embryo size (embryo:fruit or embryo:seed length ratio) is a requirement for the completion of germination by radicle emergence. The roles and mechanisms of pre-gremination embryo growth and pericarp constraint were investigated by embryo-growth imaging, pericarp ablation/biomechanics, tissue-specific hormone analytics, and population-based thermal-time threshold modelling. Comparison of Apiaceae crop cultivars, including Pastinaca sativa (parsnip), Apium graveolens (celery) and Daucus carota (carrot) with > 50 wild Apiaceae species revealed that the initial relative embryo sizes of crop species are significantly larger compared to wild species. Interestingly, the critical relative embryo sizes of the phylogenetic group that contains parsnip, were smaller for the crop compared to wild species. ABA-insensitive and auxin-promoted pre-germination embryo growth was blocked by heat (thermoinhibition), while the completion of germination by radicle emergence was inhibited by ABA. The thick pericarp of parsnip decreased in thickness and mechanical tissue resistance in parallel with the pre-germination embryo growth, while the thin pericarps of celery and carrot did not change. Parsnip pericarp contained significantly higher contents of the germination-inhibiting hormones abscisic acid (ABA) and cis-(+)-12-oxo-phytodienoic acid (cis-OPDA) compared to celery pericarp. Pericarp ablation experiments revealed that it acts as a mechanical and chemical (ABA, cis-OPDA) constraint (coat component of MD), and has a key role in narrowing the permissive temperature window for germination.

Indexed as

ApiaceaeGerminationPlant DormancySeedsCrops, AgriculturalFruitIndoleacetic AcidsPlant Growth RegulatorsTemperatureIndoleacetic AcidsPlant Growth RegulatorsApium graveolens (celery)Chilling stressDaucus carota (carrot)Embryo growthMorphological dormancyPastinaca sativa (parsnip)Pericarp (fruit coat) biomechanicsThermal-time modellingThermoinhibitionWild Apiaceae species

Identifiers

PMID41175232
PMCPMC12579680

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.