Abstract
Possible infection routes of Ralstonia pseudosolanacearum race 4 in ginger plants were determined after either rhizomes that were cut for planting or roots of whole plants were inoculated with green fluorescent protein (GFP)-tagged strains. GFP signals appeared at budding sites but not cut surfaces of rhizomes. After root inoculation, strong GFP-signals were detected at rooting sites on the rhizomes, and the tissue was severely degraded at these sites. In both tests, bacteria spread from mother to seed rhizomes. These results suggested that the root and the budding site are major entry sites.
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Acknowledgements
Part of this research was supported by grants from the Project of the NARO Bio-Oriented Technology Research Advancement Institution (Research Program on Development of Innovative Technology No. 29014C). This study was partially carried out at the Ito Plant Experiment Fields & Facilities, Faculty of Agriculture, Kyushu University.
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Iiyama, K., Michishita, R., Arima, H. et al. Possible invasion pathway of Ralstonia pseudosolanacearum race 4 in ginger plant. J Gen Plant Pathol 88, 246–250 (2022). https://doi.org/10.1007/s10327-022-01072-7
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DOI: https://doi.org/10.1007/s10327-022-01072-7