at Google ScholarTitle data
Butaitė, Elena ; Kramer, Jos ; Wyder, Stefan ; Kümmerli, Rolf:
Environmental determinants of pyoverdine production, exploitation and competition in natural Pseudomonas communities.
In: Environmental Microbiology.
Vol. 20
(2018)
Issue 10
.
- pp. 3629-3642.
ISSN 1462-2920
DOI: https://doi.org/10.1111/1462-2920.14355
Abstract in another language
Many bacteria rely on the secretion of siderophores to scavenge iron from the environment. Laboratory studies revealed that abiotic and biotic factors together determine how much siderophores bacteria make, and whether siderophores can be exploited by non-producing cheaters or be deployed by producers to inhibit competitors. Here, we explore whether these insights apply to natural communities, by comparing the production of the siderophore pyoverdine among 930 Pseudomonas strains from 48 soil and pond communities. We found that pH, iron content, carbon concentration and community diversity determine pyoverdine production levels, and the extent to which strains are either stimulated or inhibited by heterologous (non-self) pyoverdines. While pyoverdine non-producers occurred in both habitats, their prevalence was higher in soils. Environmental and genetic analyses suggest that non-producers can evolve as cheaters, exploiting heterologous pyoverdine, but also due to pyoverdine disuse in environments with increased iron availability. Overall, we found that environmental factors explained betweenstrain variation in pyoverdine production much better in soils than in ponds, presumably because high strain mixing in ponds impedes local adaption. Our study sheds light on the complexity of natural bacterial communities, and provides first insights into the multivariate nature of siderophore-based iron acquisition and competition among environmental pseudomonads.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| 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: | 24 Oct 2025 07:00 |
| Last Modified: | 24 Oct 2025 07:00 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/94968 |