at Google ScholarTitle data
Figueiredo, Alexandre R. T. ; Özkaya, Özhan ; Kümmerli, Rolf ; Kramer, Jos:
Siderophores drive invasion dynamics in bacterial communities through their dual role as public good versus public bad.
In: Ecology Letters.
Vol. 25
(2022)
Issue 1
.
- pp. 138-150.
ISSN 1461-0248
DOI: https://doi.org/10.1111/ele.13912
Abstract in another language
Microbial invasions can compromise ecosystem services and spur dysbiosis and disease in hosts. Nevertheless, the mechanisms determining invasion outcomes often remain unclear. Here, we examine the role of iron-scavenging siderophores in driving invasions of Pseudomonas aeruginosa into resident communities of environmental pseudomonads. Siderophores can be 'public goods' by delivering iron to individuals possessing matching receptors; but they can also be 'public bads' by withholding iron from competitors lacking these receptors. Accordingly, siderophores should either promote or impede invasion, depending on their effects on invader and resident growth. Using supernatant feeding and invasion assays, we show that invasion success indeed increased when the invader could use its siderophores to inhibit (public bad) rather than stimulate (public good) resident growth. Conversely, invasion success decreased the more the invader was inhibited by the residents' siderophores. Our findings identify siderophores as a major driver of invasion dynamics in bacterial communities under iron-limited conditions.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Keywords: | Pseudomonas; bacterial interactions; bacterial public goods; biological invasion; cheating; community ecology; competition; microbial ecology; pyoverdine; siderophores |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology II - Evolutionary Animal Ecology > Chair Animal Ecology II - Evolutionary Animal Ecology - Univ.-Prof. Dr. Sandra Steiger |
| Result of work at the UBT: | No |
| DDC Subjects: | 500 Science > 500 Natural sciences 500 Science > 570 Life sciences, biology |
| Date Deposited: | 10 Sep 2025 10:58 |
| Last Modified: | 10 Sep 2025 10:58 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/94636 |