Identification of Genetic Modules Mediating the Jekyll and Hyde Interaction of Dinoroseobacter shibae with the Dinoflagellate Prorocentrum minimum.
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Your vote was cast
Thank you for your feedback
Thank you for your feedback
MetadataShow full item record
AbstractThe co-cultivation of the alphaproteobacterium Dinoroseobacter shibae with the dinoflagellate Prorocentrum minimum is characterized by a mutualistic phase followed by a pathogenic phase in which the bacterium kills aging algae. Thus it resembles the "Jekyll-and-Hyde" interaction that has been proposed for other algae and Roseobacter. Here, we identified key genetic components of this interaction. Analysis of the transcriptome of D. shibae in co-culture with P. minimum revealed growth phase dependent changes in the expression of quorum sensing, the CtrA phosphorelay, and flagella biosynthesis genes. Deletion of the histidine kinase gene cckA which is part of the CtrA phosphorelay or the flagella genes fliC or flgK resulted in complete lack of growth stimulation of P. minimum in co-culture with the D. shibae mutants. By contrast, pathogenicity was entirely dependent on one of the extrachromosomal elements of D. shibae, the 191 kb plasmid. The data show that flagella and the CtrA phosphorelay are required for establishing mutualism and prove a cell density dependent killing effect of D. shibae on P. minimum which is mediated by an unknown factor encoded on the 191 kb plasmid.
CitationIdentification of Genetic Modules Mediating the Jekyll and Hyde Interaction of Dinoroseobacter shibae with the Dinoflagellate Prorocentrum minimum. 2015, 6:1262 Front Microbiol
AffiliationHelmholtz Centre for infection research, Inhoffenstr. 7, D-38124 Braunschweig, Germany.
JournalFrontiers in microbiology
The following license files are associated with this item:
- The CtrA phosphorelay integrates differentiation and communication in the marine alphaproteobacterium Dinoroseobacter shibae.
- Authors: Wang H, Ziesche L, Frank O, Michael V, Martin M, Petersen J, Schulz S, Wagner-Döbler I, Tomasch J
- Issue date: 2014 Feb 13
- A dual-species co-cultivation system to study the interactions between Roseobacters and dinoflagellates.
- Authors: Wang H, Tomasch J, Jarek M, Wagner-Döbler I
- Issue date: 2014
- Integrated Transcriptional Regulatory Network of Quorum Sensing, Replication Control, and SOS Response in <i>Dinoroseobacter shibae</i>.
- Authors: Koppenhöfer S, Wang H, Scharfe M, Kaever V, Wagner-Döbler I, Tomasch J
- Issue date: 2019
- Interactions among Redox Regulators and the CtrA Phosphorelay in <i>Dinoroseobacter shibae</i> and <i>Rhodobacter capsulatus</i>.
- Authors: Koppenhöfer S, Lang AS
- Issue date: 2020 Apr 14
- The CckA-ChpT-CtrA phosphorelay system is regulated by quorum sensing and controls flagellar motility in the marine sponge symbiont Ruegeria sp. KLH11.
- Authors: Zan J, Heindl JE, Liu Y, Fuqua C, Hill RT
- Issue date: 2013