ArticleNature communications2025
The iron chelator pulcherriminic acid mediates the light response in Bacillus subtilis biofilms.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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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.
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.
Who cites it
3 citing papers in PubMed.
- Pulcherriminic acid as an antibiofilm effector: expandingJournal of bacteriology · 2026Review
- Microscopic Fungi as Sources of Natural UV-Protective Compounds.Current microbiology · 2026Review
- Pulcherriminic acid relay; aFrontiers in cellular and infection microbiology · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Non-photosynthetic bacteria often respond to changes in light. These responses are usually regulated by photoreceptor proteins, but the mechanism of light response in biofilms is poorly understood. Here, we show that colony biofilms of Bacillus subtilis display light responses that are not dependent on typical photoreceptor proteins. Under light, B. subtilis biofilms do not mature and instead keep on expanding, resulting in thin, smooth colonies with low pigmentation. Similar effects have been previously observed upon inhibition of the biosynthesis or export of pulcherriminic acid, an iron chelator known to inhibit colony expansion by reducing extracellular iron levels. We show that light induces spontaneous degradation of pulcherriminic acid. In addition, Fe
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