Dyah Wulandari, Panlada Tittabutr, Pongpan Songwattana, Pongdet Piromyou, Kamonluck Teamtisong, Nantakorn Boonkerd, Pakpoom Boonchuen, Neung Teaumroong
The symbiotic properties of rhizobial bacteria are driven by the horizontal gene transfer of symbiotic genes, which are located in symbiosis islands or on plasmids. The symbiotic megaplasmid pDOA9 of Bradyrhizobium sp. DOA9, carrying the nod, nif, fix, and type three secretion system (T3SS) genes, has been conjugatively transferred to different Bradyrhizobium strains. In the present study, non-nodulating B. cosmicum S23321, which shows a close phylogenetic relationship with Bradyrhizobium sp. DOA9, but lacks symbiotic properties, was used to carry pDOA9 (annotated as chimeric S2:pDOA9)...
2022: Microbes and Environments