The large universal Pantoea plasmid LPP-1 plays a major role in biological and ecological diversification
1 Forestry and Agricultural Biotechnology Institute, Department of Microbiology and Plant Pathology, University of Pretoria, Pretoria, South Africa
2 Center for Microbial Ecology and Genomics, Department of Genetics, University of Pretoria, Pretoria, South Africa
3 CeBiTec, University of Bielefeld, Bielefeld, Germany
4 Agroscope Changins-Wädenswil ACW, Division of Plant Protection, Wädenswil, Switzerland
BMC Genomics 2012, 13:625 doi:10.1186/1471-2164-13-625Published: 15 November 2012
Pantoea spp. are frequently isolated from a wide range of ecological niches and have various biological roles, as plant epi- or endophytes, biocontrol agents, plant-growth promoters or as pathogens of both plant and animal hosts. This suggests that members of this genus have undergone extensive genotypic diversification. One means by which this occurs among bacteria is through the acquisition and maintenance of plasmids. Here, we have analyzed and compared the sequences of a large plasmid common to all sequenced Pantoea spp.
Results and discussion
LPP-1 is universal to all Pantoea spp. whose genomes have been sequenced to date and is derived from an ancestral plasmid. LPP-1 encodes a large array of proteins that have played a major role in the adaptation of the different Pantoea spp. to their various ecological niches and their specialization as pathogens, biocontrol agents or benign saprophytes found in many diverse environments.