Evidence map›Paper›PMID 25401182›Full record

ArticleJournal of the Royal Society, Interface2014

Photosymbiotic giant clams are transformers of solar flux.

Amanda L Holt, Sanaz Vahidinia, Yakir Luc Gagnon, Daniel E Morse, Alison M Sweeney

Abstract read
In one paragraph

Article in Journal of the Royal Society, Interface, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing 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

26 citing papers in PubMed.

  1. Article
  2. δEcology and evolution · 2026
    Article
  3. What is quantum biology?Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Cytoklepty in the plankton: A host strategy to optimize the bioenergetic machinery of endosymbiotic algae.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Article
  12. Effects of elevated temperature andConservation physiology · 2021
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Core-shell nanospheres behind the blue eyes of the bay scallopJournal of the Royal Society, Interface · 2019
    Article
  18. Review
  19. Characterization of chloroplast iridescence inJournal of the Royal Society, Interface · 2018
    Article
  20. Living Light 2018: Conference Report.Biomimetics (Basel, Switzerland) · 2018
    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

5 authors.

Amanda L Holt
Sanaz Vahidinia
Yakir Luc Gagnon
Daniel E Morse
Alison M Sweeney

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

'Giant' tridacnid clams have evolved a three-dimensional, spatially efficient, photodamage-preventing system for photosymbiosis. We discovered that the mantle tissue of giant clams, which harbours symbiotic nutrition-providing microalgae, contains a layer of iridescent cells called iridocytes that serve to distribute photosynthetically productive wavelengths by lateral and forward-scattering of light into the tissue while back-reflecting non-productive wavelengths with a Bragg mirror. The wavelength- and angle-dependent scattering from the iridocytes is geometrically coupled to the vertically pillared microalgae, resulting in an even re-distribution of the incoming light along the sides of the pillars, thus enabling photosynthesis deep in the tissue. There is a physical analogy between the evolved function of the clam system and an electric transformer, which changes energy flux per area in a system while conserving total energy. At incident light levels found on shallow coral reefs, this arrangement may allow algae within the clam system to both efficiently use all incident solar energy and avoid the photodamage and efficiency losses due to non-photochemical quenching that occur in the reef-building coral photosymbiosis. Both intra-tissue radiometry and multiscale optical modelling support our interpretation of the system's photophysics. This highly evolved 'three-dimensional' biophotonic system suggests a strategy for more efficient, damage-resistant photovoltaic materials and more spatially efficient solar production of algal biofuels, foods and chemicals.

Indexed as

Biological EvolutionBivalviaLightMicroalgaeAnimalsPhotosynthesisSymbiosis

Identifiers

PMID25401182
PMCPMC4223897

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.