Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1151714 | ENA |
REPOSITORIES: ENA
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Project description:Paenibacillus polymyxa is an agriculturally important plant growth promoting rhizobacterium (PGPR). Many Paenibacillus species are known to be engaged in complex bacteria-bacteria and bacteria-host interactions, which in other bacteria were shown to necessitate quorum sensing communication, but 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 comprises a pro-peptide that is secreted to the growth medium and further 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 to the medium 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.
2020-08-05 | PXD015319 | Pride
Project description:Revisiting the structure of the mucoralean families new genera and species in the new family Circinellaceae
| PRJEB25837 | ENA
Project description:Isoleucyl-tRNA synthetase (IleRS) is an essential enzyme that covalently couples isoleucine to the corresponding tRNA. Bacterial IleRSs group in two clades, ileS1 and ileS2, the latter bringing resistance to the natural antibiotic mupirocin. Generally, bacteria rely on either ileS1 or ileS2 as a standalone housekeeping gene. However, we have found an exception in Bacillus species: in family Bacillaceae ileS1 appears mandatory, but some of the Bacilli posses additional, ileS2 gene. Taking Priestia (Bacillus) megaterium as a model organism, we showed that PmIleRS1 is constitutively expressed, while PmIleRS2 is stress-induced. As part of our investigation of ileS1/ileS2 function, we explored the expression of ileS1 and ileS2 under control conditions and upon mupirocin treatment.
2022-08-28 | PXD032256 | JPOST Repository
Project description:Paenibacillaceae sp. P-15 overview
| PRJNA1183965 | ENA