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Peptide-based quorum sensing systems in Paenibacillus polymyxa

View ORCID ProfileMaya Voichek, Sandra Maaß, Tobias Kroniger, Dörte Becher, Rotem Sorek
doi: https://doi.org/10.1101/767517
Maya Voichek
1Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
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Sandra Maaß
2Institute of Microbiology, Department of Microbial Proteomics; Center for Functional Genomics of Microbes, University of Greifswald, Germany
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Tobias Kroniger
2Institute of Microbiology, Department of Microbial Proteomics; Center for Functional Genomics of Microbes, University of Greifswald, Germany
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Dörte Becher
2Institute of Microbiology, Department of Microbial Proteomics; Center for Functional Genomics of Microbes, University of Greifswald, Germany
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Rotem Sorek
1Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
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  • For correspondence: rotem.sorek@weizmann.ac.il
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Abstract

Paenibacillus polymyxa is an agriculturally important plant growth-promoting rhizobacterium. Many Paenibacillus species are known to be engaged in complex bacteria-bacteria and bacteria-host interactions, which in other species were shown to necessitate quorum sensing communication. However, to date no quorum sensing systems have been described in Paenibacillus. Here we show that the type strain P. polymyxa ATCC 842 encodes at least 16 peptide-based communication systems. Each of these systems is comprised of a pro-peptide that is secreted to the growth medium and processed to generate a mature short peptide. Each peptide has a cognate intracellular receptor of the RRNPP family, and we show that external addition of P. polymyxa communication peptides leads to reprogramming of the transcriptional response. We found that these quorum sensing systems are conserved across hundreds of species belonging to the Paenibacillaceae family, with some species encoding more than 25 different peptide-receptor pairs, representing a record number of quorum sensing systems encoded in a single genome.

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Posted September 12, 2019.
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Peptide-based quorum sensing systems in Paenibacillus polymyxa
Maya Voichek, Sandra Maaß, Tobias Kroniger, Dörte Becher, Rotem Sorek
bioRxiv 767517; doi: https://doi.org/10.1101/767517
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Peptide-based quorum sensing systems in Paenibacillus polymyxa
Maya Voichek, Sandra Maaß, Tobias Kroniger, Dörte Becher, Rotem Sorek
bioRxiv 767517; doi: https://doi.org/10.1101/767517

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