Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Tetracycline modifies competitive interactions in experimental microcosms containing bacteria isolated from freshwater |
| Abstract | Interspecific microbial interactions are important for community structure, function and evolution, but it is not fully understood how interactions among bacterial species are influenced by some types of abiotic environmental variation, such as exposure to antibiotics. We tested for the effect of an antibiotic, tetracycline, on interspecific interactions in vitro among four species of aquatic bacteria isolated from European water bodies. Interactions among species in experimental microcosms containing artificial lake water (ALW) supplemented with glucose were largely competitive, as detected by comparing mixed cultures to pure cultures of their constituent species. Sublethal concentrations of tetracycline changed the relative competitive abilities of different species and revealed considerable variation in antibiotic sensitivity, but did not reduce the average strength of competition. Interspecific interactions at a given concentration were largely predictable from growth in pure cultures and indirect interactions with other species. These results suggest that antibiotics such as tetracycline may have important consequences for interactions among bacterial species, but in our experiments this was because species varied in their capacities for growth in the presence of tetracycline, rather than reduced competition at increasing tetracycline concentrations. |
| Source | FEMS microbiology, ecology (print) 90 (1), pp. 168–174 |
| Keywords | competitiontetracyclineaquatic bacteriatransitivity |
| Journal | FEMS microbiology, ecology (print) |
| Editor | Elsevier, Amsterdam, Paesi Bassi |
| Year | 2014 |
| Type | Articolo in rivista |
| DOI | 10.1111/1574-6941.12388 |
| Authors | Alex R. Hall; Gianluca Corno |
| Text | 328648 2014 10.1111/1574 6941.12388 ISI Web of Science WOS 000343809700013 Scopus 2 s2.0 84907904161 competition tetracycline aquatic bacteria transitivity Tetracycline modifies competitive interactions in experimental microcosms containing bacteria isolated from freshwater Alex R. Hall; Gianluca Corno Swiss Federal Institute of Technology Zurich; CNR Inst Ecosyst Study Interspecific microbial interactions are important for community structure, function and evolution, but it is not fully understood how interactions among bacterial species are influenced by some types of abiotic environmental variation, such as exposure to antibiotics. We tested for the effect of an antibiotic, tetracycline, on interspecific interactions in vitro among four species of aquatic bacteria isolated from European water bodies. Interactions among species in experimental microcosms containing artificial lake water ALW supplemented with glucose were largely competitive, as detected by comparing mixed cultures to pure cultures of their constituent species. Sublethal concentrations of tetracycline changed the relative competitive abilities of different species and revealed considerable variation in antibiotic sensitivity, but did not reduce the average strength of competition. Interspecific interactions at a given concentration were largely predictable from growth in pure cultures and indirect interactions with other species. These results suggest that antibiotics such as tetracycline may have important consequences for interactions among bacterial species, but in our experiments this was because species varied in their capacities for growth in the presence of tetracycline, rather than reduced competition at increasing tetracycline concentrations. 90 Published version Articolo 2014_FEMS_Microbiol_Ecol_90_168_174.pdf Articolo in rivista Elsevier 0168 6496 FEMS microbiology, ecology print FEMS microbiology, ecology print FEMS microbiol. ecol. print FEMS microbiology, ecology. print Federation of European Microbiological Societies microbiology, ecology print gianluca.corno CORNO GIANLUCA TA.P04.016.004 Ecologia teorica e applicata degli ecosistemi acquatici |