The invention relates to an identification method of
pathogenicity of
fusarium oxysporum sesame special type
bacterial strain to host sesame, which comprises the following steps: (1) pretreatment of seeds; (2) bacterial
inoculation culture of the seeds:
conidium suspending liquid is taken and poured into sterile
vermiculite with the volume to be two times that of the
conidium suspending liquid,
vermiculite mixed with
pathogenic bacteria and sterile soil are mixed evenly according to the volume ratio of 1:3 and charged in a split mode, sterile sesame seeds exposing white are sown in a paper bowl, 10 particles are evenly placed in each bowl, each variety is repeated and planted for three times, mixed soil for mixing
bacteria is lightly covered on the surface of the seeds and placed into an artificial climate box for light and dark alternated culture for 12 hours per day at 25 DEG C and at the
humidity of about 80%, and other culture conditions are the same with equal-volume
sterile water as comparison; and (3) performing
pathogenicity identification. The identification method is simple, convenient and easy to implement,
pathogenicity of the
pathogenic bacteria is stable, results are reliable,
repeatability is good, and the fact that whether
fusarium oxysporum sesame special type
bacterial strain has pathogenicity on sesame seedlings and pathogenic strength of the
fusarium oxysporum sesame special type
bacterial strain can be accurately reflected.