Evidence map›Paper›PMID 30689019›Full record

ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2019

Vividly coloured poppy flowers due to dense pigmentation and strong scattering in thin petals.

Casper J van der Kooi, Doekele G Stavenga

Open access · hybridAbstract read
In one paragraph

Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
7.5field-weighted citation impact, top 3% 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

19 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Dark side of anthocyanin pigmentation.Plant biology (Stuttgart, Germany) · 2025
    Review
  5. Article
  6. Flower colour contrast, 'spectral purity' and a red herring.Plant biology (Stuttgart, Germany) · 2025
    Review
  7. Article
  8. Comparative psychophysics of Western honey bee (Apis mellifera) and stingless bee (Tetragonula carbonaria) colour purity and intensity perception.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2022
    Article
  9. Article
  10. Article
  11. Review
  12. Petal Cellular Identities.Frontiers in plant science · 2021
    Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. The thermal ecology of flowers.Annals of botany · 2019
    Review
  19. Colour preferences of Tetragonula carbonaria Sm. stingless bees for colour morphs of the Australian native orchid Caladenia carnea.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2019
    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

2 authors at 1 institution in 1 country.

Casper J van der KooiGroningen Institute for Evolutionary Life Sciences, University of Groningen, 9747 AG, Groningen, The Netherlands. c.j.van.der.kooi@rug.nl.ORCID 0000-0003-0613-7633
Doekele G StavengaComputational Physics, Zernike Institute for Advanced Materials, University of Groningen, 9747 AG, Groningen, The Netherlands.ORCID 0000-0002-2518-6177
University of Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The flowers of poppies (Papaveraceae) exhibit bright colours, despite their thin and floppy petals. We investigated the optical properties of flowers of Papaver rhoeas, P. dubium, Meconopsis cambrica and Argemone polyanthemos using a combined approach of anatomy, spectrophotometry and optical modelling. The petals of Papaver flowers are composed of only three cell layers, an upper and lower epidermal layer, which are densely filled with pigment, and an unpigmented mesophyll layer. Dense pigmentation together with strong scattering structures, composed of serpentine cell walls and air cavities, cause the striking poppy colours. We discuss how various aspects of the optical signal contribute to the flower's visibility to pollinators.

Indexed as

FlowersPapaverPigmentationAnthocyaninBee visionPapaverPollinationReflectance

Identifiers

PMID30689019
PMCPMC6579775
OpenAlexW2911787553

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.