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- Title
Pseudomonas putida as saviour for troubled Synechococcus elongatus in a synthetic co-culture – interaction studies based on a multi-OMICs approach.
- Authors
Kratzl, Franziska; Urban, Marlene; Pandhal, Jagroop; Shi, Mengxun; Meng, Chen; Kleigrewe, Karin; Kremling, Andreas; Pflüger-Grau, Katharina
- Abstract
In their natural habitats, microbes rarely exist in isolation; instead, they thrive in consortia, where various interactions occur. In this study, a defined synthetic co-culture of the cyanobacterium S. elongatus cscB, which supplies sucrose to the heterotrophic P. putida cscRABY, is investigated to identify potential interactions. Initial experiments reveal a remarkable growth-promoting effect of the heterotrophic partner on the cyanobacterium, resulting in an up to 80% increase in the growth rate and enhanced photosynthetic capacity. Vice versa, the presence of the cyanobacterium has a neutral effect on P. putida cscRABY, highlighting the resilience of pseudomonads against stress and their potential as co-culture partners. Next, a suitable reference process reinforcing the growth-promoting effect is established in a parallel photobioreactor system, which sets the basis for the analysis of the co-culture at the transcriptome, proteome, and metabolome levels. In addition to several moderate changes, including alterations in the metabolism and stress response in both microbes, this comprehensive multi-OMICs approach strongly hints towards the exchange of further molecules beyond the unidirectional feeding with sucrose. Taken together, these findings provide valuable insights into the complex dynamics between both co-culture partners, indicating multi-level interactions, which can be employed for further streamlining of the co-cultivation system. This study investigates interspecies interaction in a synthetic co-culture consisting of the sucrose-secreting cyanobacterium S. elongatus cscB and its sucrose-consuming partner P. putida cscRABY by employing a comprehensive multi-OMICs approach.
- Subjects
SYNECHOCOCCUS elongatus; PSEUDOMONAS putida; MULTIOMICS; PHOTOSYNTHETIC rates; SUCROSE
- Publication
Communications Biology, 2024, Vol 7, Issue 1, p1
- ISSN
2399-3642
- Publication type
Article
- DOI
10.1038/s42003-024-06098-5