Evidence map›Paper›PMID 31498821›Full record

ArticlePloS one2019

Characterization of melanin and optimal conditions for pigment production by an endophytic fungus, Spissiomyces endophytica SDBR-CMU319.

Nakarin Suwannarach, Jaturong Kumla, Bunta Watanabe, Kenji Matsui, Saisamorn Lumyong

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
7.3field-weighted citation impact, top 2% 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

43 citing papers in PubMed, 117 citations in OpenAlex.

  1. Article
  2. Review
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  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Regulation of melanin production in fungi.Frontiers in fungal biology · 2025
    Review
  12. Biocompatible melanin from the marine black yeast Hortaea werneckii R23 with antioxidant and photoprotection property.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024
    Article
  13. Article
  14. Mechanisms and Virulence Factors ofJournal of fungi (Basel, Switzerland) · 2024
    Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Characterization of melanin fromFrontiers in fungal biology · 2024
    Article
  20. 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 at 4 institutions in 2 countries.

Nakarin SuwannarachDepartment of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand.ORCID 0000-0002-2653-1913
Jaturong KumlaDepartment of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand.
Bunta WatanabeInstitute for Chemical Research, Kyoto University, Kyoto, Japan.
Kenji MatsuiGraduate School of Sciences and Technology for Innovation (Agriculture), Yamaguchi University, Yamaguchi, Japan.
Saisamorn LumyongDepartment of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand.ORCID 0000-0002-6485-414X
Chiang Mai University · THKyoto University · JPThe Royal College Of Anesthesiologists Of Thailand · THYamaguchi University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Melanin is a natural pigment that is produced by filamentous fungi. In this study, the endophytic species, Spissiomyces endophytica (strain SDBR-CMU319), produced a brown-black pigment in the mycelia. Consequently, the pigment was extracted from the dried fungal biomass. This was followed by pigment purification, characterization and identification. Physical and chemical characteristics of the pigment showed acid precipitation, alkali solubilization, decolorization with oxidizing agents, and insolubility in most organic solvents and water. The pigment was confirmed as melanin based on ultraviolet-visible spectroscopy, Fourier-transform infrared, and electron paramagnetic resonance spectra analyses. The analyses of the elemental composition indicated that the pigment possessed a low percentage of nitrogen, and therefore, was not 3,4-dihydroxyphenylalanine melanin. Inhibition studies involving specific inhibitors, both tricyclazole and phthalide, and suggest that fungal melanin could be synthesized through the 1,8-dihydroxynaphthalene pathway. The optimum conditions for fungal pigment production from this species were investigated. The highest fungal pigment yield was observed in glucose yeast extract peptone medium at an initial pH value of 6.0 and at 25°C over three weeks of cultivation. This is the first report on the production and characterization of melanin obtained from the genus Spissiomyces.

Indexed as

PigmentationAscomycotaEndophytesMelaninsMelanins

Identifiers

PMID31498821
PMCPMC6733467
OpenAlexW2973152168

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.