Using mass spectrometry to investigate fluorescent compounds in squirrel fur.
Journal
PloS one
ISSN: 1932-6203
Titre abrégé: PLoS One
Pays: United States
ID NLM: 101285081
Informations de publication
Date de publication:
2022
2022
Historique:
received:
29
08
2021
accepted:
08
02
2022
entrez:
22
2
2022
pubmed:
23
2
2022
medline:
12
3
2022
Statut:
epublish
Résumé
While an array of taxa are capable of producing fluorescent pigments, fluorescence in mammals is a novel and poorly understood phenomenon. A first step towards understanding the potential adaptive functions of fluorescence in mammals is to develop an understanding of fluorescent compounds, or fluorophores, that are present in fluorescent tissue. Here we use Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICR MS) of flying squirrel fur known to fluoresce under ultraviolet (UV) light to identify potentially fluorescent compounds in squirrel fur. All of the potentially fluorescent compounds we identified were either present in non-fluorescent fur or were not present in all species of fluorescent flying squirrel. Therefore, we suggest that the compounds responsible for fluorescence in flying squirrels may also be present in non-fluorescent mammal fur. Some currently unexplained factor likely leads to excitation of fluorophores in flying squirrel fur. A recently suggested hypothesis that fluorescence in mammals is widely caused by porphyrins is consistent with our findings.
Identifiants
pubmed: 35192622
doi: 10.1371/journal.pone.0257156
pii: PONE-D-21-27099
pmc: PMC8863215
doi:
Substances chimiques
Fluorescent Dyes
0
Pigments, Biological
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
e0257156Déclaration de conflit d'intérêts
The authors have declared that no competing interest exist.
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