Cited by 133Microbial Metabolism and ApplicationsBiocrusts and Microbial EcologySkin Protection and Aging

The cyanobacterial UV-absorbing pigment scytonemin displays radical-scavenging activity

Open access
Matsui, Kei, Nazifi, Ehsan, Hirai, Yosuke, Wada, Naoki, Matsugo, Seiichi, Sakamoto, Toshio·2012·The Journal of General and Applied Microbiology

Abstract

Scytonemin is a 544-Da hydrophobic pigment that can absorb UV-A radiation. It is present in cyanobacterial sheaths and is thought to function as a UV protectant. In this study, scytonemin was purified from the terrestrial cyanobacterium Nostoc commune, and its radical-scavenging activity was characterized. The purified scytonemin quenched an organic radical in vitro and accounted for up to 10% of the total activity of an ethanol extract of N. commune. These results suggest that the extracellular UV-absorbing pigment scytonemin has multiple roles, functioning as a UV sunscreen and an antioxidant relevant to anhydrobiosis in N. commune.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.2323/jgam.58.137

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • MAA are multifunctional photoprotective compounds acting as chemical and biological anti-oxidants.

    “it is clear that MAA are multifunctional photoprotective compounds acting as chemical and biological anti-oxidants.”

    From Mycosporine-Like Amino Acids for Skin Photoprotection (2019) · cites this paper as [80]

  • MAA have antioxidant properties, demonstrated with different MAA from a large variety of species.

    “This has been demonstrated with different MAA from a large variety of species [78-81].”

    From Mycosporine-Like Amino Acids for Skin Photoprotection (2019) · cites this paper as [80]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. by Whitton, B. A. and Potts, M., Kluwer Academic Publish- ers, Netherlands, pp. 465 504.

Cited by

Sorted by citations

Authors
Matsui, K., Nazifi, E., Hirai, Y., Wada, N., Matsugo, S., & Sakamoto, T.
Affiliations
Kanazawa University (JP)
Venue
The Journal of General and Applied Microbiology
Published
2012
Volume
58
Issue
2
Pages
137-144
ISSN
  • 0022-1260 (ISSN-L)
  • 1349-8037
OpenAlex
W2162164905
Cited by
133
References
45
Citations by year
2026: 6 · 2025: 9 · 2024: 2 · 2023: 8 · 2022: 22 · 2021: 10 · 2020: 31 · 2019: 6 · 2018: 7 · 2017: 12 · 2016: 7 · 2015: 3 · 2014: 4 · 2013: 6
FWCI
3.69
Type
journal article
Language
en
Open access
Locations
  • The Journal of General and Applied Microbiology (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion)
  • Kanazawa University Repository for Academic Resources (DSpace) (Kanazawa University) (submittedVersion, cc-by-nc-nd)
Funders
  • Japan Society for the Promotion of Science (22510227)
  • National Institute for Basic Biology
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Microbial Metabolism and Applications
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Biocrusts and Microbial Ecology
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
Keywords
scytonemin, free radical scavenging, antioxidant activity, UV protection, Nostoc commune, extracellular pigments, anhydrobiosis, UVA absorption, pigment purification
MeSH terms
Absorption, Cyanobacteria, Indoles, Phenols, Pigments, Biological, Sunscreening Agents, Ultraviolet Rays, Free Radical Scavengers, Nostoc commune

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review