Complete Genome Sequence of a Novel Azospirillum Strain TA Isolated from Western Siberia Chernevaya Taiga Soil

A whole genome sequence of a new strain of the nitrogen-fixing bacterium <i>Azospirillum doebereinerae,</i> known for its diverse plant growth-promoting bacteria (PGPB), was obtained for the first time. The strain, designated <i>Azospirillum doebereinera</i>e AT, was isolated during a soil analysis in the Chernevaya taiga of Western Siberia, a unique and fertile forest ecosystem known for its diverse plant growth-promoting bacteria (PGPB). The <i>A. doebereinerae</i> genome under study is fully assembled into seven circular molecules, none of which are unequivocally plasmids, with a total length of 6.94 Mb and a G + C content of 68.66%. A detailed phylogenomic analysis confirmed its placement within the genus <i>Azospirillum</i>, specifically closely related to <i>A. doebereinerae</i> GSF71^T. Functional annotation revealed genes involved in nitrogen metabolism, highlighting the potential of strain TA as a biofertilizer and plant growth-promoting agent. The findings contribute to our understanding of the genomic diversity and metabolic potential of the <i>Azospirillum</i> genus, and they are of interest for further study in the field of comparative bacterial genomics, given the strain's multi-chromosomal genome structure.