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Towards an understanding of spiral patterning in the Sargassum muticum shoot apex

Marina Linardić; Siobhan A. Braybrook · Scientific Reports · 2017 · Algal developmental observations and perturbation experiments

Original publication · Original publication · Original publication

Recorded summary

Sargassum muticum displays a mean divergence angle close to the golden angle. Organ placement is uncoupled from apical-cell division orientation, while the tested auxin and wall-softening explanations fail to account for bud position.

Recorded limitations

The developmental signal remains unidentified. Similar geometry in algae and plants does not establish a shared molecular mechanism.

Evidence and provenance

Chapter Trust Factor uses a minimum of three distinct qualifying studies. Publication records retain their own evidence and assessment.

Study design and assessment
design
Algal developmental observations and perturbation experiments
assessment
is Randomized Controlled Trial
false
blinding
Not applicable to a clinical-trial grade
basis
Algal developmental observations and perturbation experiments. No human randomized controlled trial is reported.
sources

https://www.nature.com/articles/s41598-017-13767-5

category
peer-reviewed
peer Reviewed
true
trust Factor
score
1
scope
Paper
status
assessed
randomized Controlled Trial
false
blinding
not-confirmed
peer Reviewed
true
basis
Algal developmental observations and perturbation experiments. No human randomized controlled trial is reported.
sources

https://pubmed.ncbi.nlm.nih.gov/29066850/ · https://www.nature.com/articles/s41598-017-13767-5

review Scope
Existing publication-specific assessments and bibliographic indexing; no blanket full-text appraisal.
assessed At
2026-10-27
jadad
status
not-applicable
score
Not recorded
reason
Not a human randomized controlled trial.
evidence
evidence Type
Algal developmental observations and perturbation experiments
evidence Class
biological_experiment
measurement
Sargassum shoot apices; 260 measured divergence angles
measured Genes
None recorded
pathways
None recorded
relationship Note
Background literature only. This paper does not test or validate an OXTR–Fibonacci relationship.
clinical Evidence
false
review Depth
Abstract and selected source passages: Results; Discussion; Materials and Methods.
full Paper Appraisal
Not completed; review depth states the material assessed.
Topics and recorded topic scores
  1. key
    general:fibonacci-biological-patterns
    title
    Biological patterns and developmental mechanisms
    collection
    general
    trust Score
    1
Citation snapshot and identifiers
id
nature-fibonacci-s41598-017-13767-5
doi
10.1038/s41598-017-13767-5
pmid
29066850
citation Snapshot
count
18
source
Crossref cited-by count
retrieved At
2026-10-24
url
https://api.crossref.org/works/10.1038/s41598-017-13767-5
field
is-referenced-by-count
source Indexed At
2026-09-27T16:03:12Z
coverage Note
Count reflects Crossref-deposited references and can differ from publisher or other database totals. It is not a quality or clinical-evidence score.
citations By Collection
general
18
Complete approved library record
id
nature-fibonacci-s41598-017-13767-5
aliases
None recorded
title
Towards an understanding of spiral patterning in the Sargassum muticum shoot apex
journal
Scientific Reports
publisher Family
nature
publisher Family Label
Nature Portfolio
neurotransmitters
None recorded
year
2017
authors
Marina Linardić; Siobhan A. Braybrook
design
Algal developmental observations and perturbation experiments
kind
Journal article
identity Conflict
Not recorded
doi
10.1038/s41598-017-13767-5
pmid
29066850
urls

https://www.nature.com/articles/s41598-017-13767-5 · https://doi.org/10.1038/s41598-017-13767-5 · https://pubmed.ncbi.nlm.nih.gov/29066850/

collections

general

categories

Fibonacci mathematics · Biological pattern formation

targets
None recorded
priority
1
quotes
None recorded
summary
Sargassum muticum displays a mean divergence angle close to the golden angle. Organ placement is uncoupled from apical-cell division orientation, while the tested auxin and wall-softening explanations fail to account for bud position.
limitation
The developmental signal remains unidentified. Similar geometry in algae and plants does not establish a shared molecular mechanism.
citation Count
18
citation Snapshot
count
18
source
Crossref cited-by count
retrieved At
2026-10-24
url
https://api.crossref.org/works/10.1038/s41598-017-13767-5
field
is-referenced-by-count
source Indexed At
2026-09-27T16:03:12Z
coverage Note
Count reflects Crossref-deposited references and can differ from publisher or other database totals. It is not a quality or clinical-evidence score.
study Design Assessment
is Randomized Controlled Trial
false
blinding
Not applicable to a clinical-trial grade
basis
Algal developmental observations and perturbation experiments. No human randomized controlled trial is reported.
sources

https://www.nature.com/articles/s41598-017-13767-5

category
peer-reviewed
peer Reviewed
true
paper Trust Assessment
score
1
scope
Paper
status
assessed
randomized Controlled Trial
false
blinding
not-confirmed
peer Reviewed
true
basis
Algal developmental observations and perturbation experiments. No human randomized controlled trial is reported.
sources

https://pubmed.ncbi.nlm.nih.gov/29066850/ · https://www.nature.com/articles/s41598-017-13767-5

review Scope
Existing publication-specific assessments and bibliographic indexing; no blanket full-text appraisal.
assessed At
2026-10-27
citations By Collection
general
18
topics
  1. key
    general:fibonacci-biological-patterns
    title
    Biological patterns and developmental mechanisms
    collection
    general
    trust Score
    1
journal Key
scientificreports
journal Label
Scientific Reports
chapter Entries
  1. id
    general-nature-fibonacci-s41598-017-13767-5
    title
    Towards an understanding of spiral patterning in the Sargassum muticum shoot apex
    journal
    Scientific Reports
    year
    2017
    authors
    Marina Linardić; Siobhan A. Braybrook
    doi
    10.1038/s41598-017-13767-5
    pmid
    29066850
    urls

    https://www.nature.com/articles/s41598-017-13767-5 · https://doi.org/10.1038/s41598-017-13767-5 · https://pubmed.ncbi.nlm.nih.gov/29066850/

    design
    Algal developmental observations and perturbation experiments
    summary
    Sargassum muticum displays a mean divergence angle close to the golden angle. Organ placement is uncoupled from apical-cell division orientation, while the tested auxin and wall-softening explanations fail to account for bud position.
    limitation
    The developmental signal remains unidentified. Similar geometry in algae and plants does not establish a shared molecular mechanism.
    citation Count
    18
    citation Snapshot
    count
    18
    source
    Crossref cited-by count
    retrieved At
    2026-10-24
    url
    https://api.crossref.org/works/10.1038/s41598-017-13767-5
    field
    is-referenced-by-count
    source Indexed At
    2026-09-27T16:03:12Z
    coverage Note
    Count reflects Crossref-deposited references and can differ from publisher or other database totals. It is not a quality or clinical-evidence score.
    categories

    Fibonacci mathematics · Biological pattern formation

    targets
    None recorded
    evidence
    evidence Type
    Algal developmental observations and perturbation experiments
    evidence Class
    biological_experiment
    measurement
    Sargassum shoot apices; 260 measured divergence angles
    measured Genes
    None recorded
    pathways
    None recorded
    relationship Note
    Background literature only. This paper does not test or validate an OXTR–Fibonacci relationship.
    clinical Evidence
    false
    review Depth
    Abstract and selected source passages: Results; Discussion; Materials and Methods.
    full Paper Appraisal
    Not completed; review depth states the material assessed.
    record Id
    nature-fibonacci-s41598-017-13767-5
    quotes
    None recorded
    source Pages
    None recorded
    paper Trust Assessment
    score
    1
    scope
    Paper
    status
    assessed
    randomized Controlled Trial
    false
    blinding
    not-confirmed
    peer Reviewed
    true
    basis
    Algal developmental observations and perturbation experiments. No human randomized controlled trial is reported.
    sources

    https://pubmed.ncbi.nlm.nih.gov/29066850/ · https://www.nature.com/articles/s41598-017-13767-5

    review Scope
    Existing publication-specific assessments and bibliographic indexing; no blanket full-text appraisal.
    assessed At
    2026-10-27
    study Design Assessment
    is Randomized Controlled Trial
    false
    blinding
    Not applicable to a clinical-trial grade
    basis
    Algal developmental observations and perturbation experiments. No human randomized controlled trial is reported.
    sources

    https://www.nature.com/articles/s41598-017-13767-5

    category
    peer-reviewed
    peer Reviewed
    true
    collection
    general
    chapter Number
    9
    topic Id
    fibonacci-biological-patterns
    topic Title
    Biological patterns and developmental mechanisms
    trust Score
    1
evidence
evidence Type
Algal developmental observations and perturbation experiments
evidence Class
biological_experiment
measurement
Sargassum shoot apices; 260 measured divergence angles
measured Genes
None recorded
pathways
None recorded
relationship Note
Background literature only. This paper does not test or validate an OXTR–Fibonacci relationship.
clinical Evidence
false
review Depth
Abstract and selected source passages: Results; Discussion; Materials and Methods.
full Paper Appraisal
Not completed; review depth states the material assessed.
jadad
status
not-applicable
score
Not recorded
reason
Not a human randomized controlled trial.
condition Evidence
None recorded
conditions
None recorded
topic Trust Scores

1

full Text
status
open-license
retrieval Available
true
url
https://www.nature.com/articles/s41598-017-13767-5
rights
license
http://creativecommons.org/licenses/by/4.0/
authors
Marina, Linardić; Siobhan A., Braybrook
title
Towards an understanding of spiral patterning in the Sargassum muticum shoot apex
doi
10.1038/s41598-017-13767-5
copyright
2017 The Author(s)
source
https://www.nature.com/articles/s41598-017-13767-5
transformation
Article sections extracted to plain text; navigation and recommendation sections removed. Equations, tables and image content may be incomplete; use the source for technical interpretation.
sha256
125485fe7248ec2f517c8ed64f7d563d243a29e13c9658f269a8f3d07d07b420
checked At
2026-10-24

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