The invention provides bacillus marinus, wherein the preservation number of the bacillus is CCTCC M2015437. The invention is applied to the bacillus marinus so as to prepare marine dextranase, and the marine dextranase, on streptococcus mutans, has a function of inhibiting the formation of a biomembrane of the streptococcus mutans; and the marine dextranase, besides applied to decayed tooth prevention and treatment as well as such aspects as medical treatment, daily chemical and the like, also has a huge application potential on such aspects as marine biological medicines and the like.
修改评论