The invention discloses an ochrobactrum Chinese angelica
rhizosphere growth-promoting bacterium, which is obtained by separating, purifying and culturing
rhizosphere soil in which umbelliferae Chinese angelica grows, is identified as
Ochrobactrum sp.OS1202409 through
microorganism 16S rRNA (ribosomal ribonucleic acid)
gene sequence sequencing, is preserved in the China Center for Type Culture Collection (CCTCC), and has the preservation number of CCTCC NO: M 20252607. The
Ochrobactrum sp.OS1202409 separated by the invention has an anti-
bolting function and a
growth promoting function, and can promote the
angelica sinensis to produce indoleacetic acid, the
bolting rate of the
angelica sinensis can be remarkably reduced and the
biomass of the
angelica sinensis in different development stages can be increased by applying the
bacterial agent in the field compared with a
negative control agent without applying the
bacterial agent, and the yield level has no remarkable difference compared with the level of a current commercial
reagent, so that the yield of the angelica sinensis can be remarkably increased. The strain can be used as a special microbial
fertilizer for angelica sinensis and has important application prospects.