A discovery down under: decoding the draft genome sequence of Pantoea stewartii from Australia’s Critically Endangered western ground parrot/kyloring (Pezoporus flaviventris)

Author:

White Rhys T.1ORCID,Taylor William2ORCID,Klukowski Natalie3ORCID,Vaughan-Higgins Rebecca4ORCID,Williams Ernest5ORCID,Petrovski Steve3ORCID,Rose Jayson J. A.3ORCID,Sarker Subir36ORCID

Affiliation:

1. Institute of Environmental Science and Research, Wellington, New Zealand

2. Institute of Environmental Science and Research, Christchurch, New Zealand

3. Department of Microbiology, Anatomy, Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Melbourne, Victoria, Australia

4. Perth Zoo, South Perth, Western Australia, Australia

5. Institute of Environmental Science and Research, Wallaceville, New Zealand

6. Biomedical Sciences & Molecular Biology, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia

Abstract

Pantoea stewartii , a plant pathogen, is primarily transmitted through contaminated seeds and insect vectors, with the corn flea beetle (Chaetocnema pulicaria) being the primary carrier. P. stewartii is a bacterium belonging to the order Enterobacterales and can lead to crop diseases that have a significant economic impact worldwide. Due to its high potential for spread, P. stewartii is classified as a quarantine organism in numerous countries. Despite its impact on agriculture, the limited genome sequences of P. stewartii hamper understanding of its pathogenicity and host specificity, and the development of effective control strategies. In this study, a P. stewartii strain (C10109_Jinnung) was discovered in the faecal matter of the Critically Endangered western ground parrot/kyloring (Pezoporus flaviventris) in Australia, which to our knowledge is the first reported P. stewartii genome from a bird source. Whole-genome sequencing and phylogenomic analysis of strain C10109_Jinnung, obtained from a captive psittacine, provides new insights into the genetic diversity and potential transmission route for the spread of P. stewartii beyond insects and plants, where P. stewartii is typically studied. Our findings provide new insights into the potential transmission route for spread of P. stewartii and expand the known transmission agents beyond insects and plants. Expanding the catalogue of P. stewartii genomes is fundamental to improving understanding of the pathogenicity, evolution and dissemination, and to develop effective control strategies to reduce the substantial economic losses associated with P. stewartii in various crops and the potential impact of endangered animal species.

Publisher

Microbiology Society

Subject

General Medicine

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