Spherosinin degradation bacterium calcium acetate fixed bacillus YLZZ-1 and method for producing the same

Abstract

The invention discloses a swainsonine degradation bacteria acetic acid calcium acinetobacter YLZZ-1, which is of short rod shape, 0.2 to 0.3Mum x 0.5 to 1.0Mum, gram-negative without capsule, germ andmotion; bacterial colony is circular, ivory-white, smooth on the surface, wet, elevated and regular in edge and not transparent; bacterial strain is artificially separated and screened out from locoweed growing soil in areas such as Ganshu, Tibet, Inner Mongolia and Qinghai and is preserved at the preservation center for typical culturing in China on Jul., 20, 2007 with preservation No. of CCTCCNO: M 207108. The invention has the advantages of degrading swainsonine which is main toxin of locoweed (Swainsonine, SW).

Description

technical field

[0001] The invention belongs to the technical field of microorganisms, and relates to a new Acinetobacter calcoaceticus (Acinetobacter calcoaceticus), in particular to a degrading bacterium Acinetobacter calcoaceticus capable of effectively degrading swainsonine (Swainsonine, SW), the main toxin of locoweed YLZZ-1 also relates to the preparation and cultivation method of the degrading bacteria and its application. Background technique

[0002] Locoweed is the general term for the poisonous plants of the genus Oxytropis and Astragalus of the leguminous family, and it is also the most serious poisonous weed that endangers grassland animal husbandry in the world. In my country, locoweeds are widely distributed in the vast grasslands of Northwest, North and Southwest China, and the damage area is 11 million hm2, accounting for 2.8% of the grassland area in China. Because locoweed has strong adaptability, it grows vigorously on desert grasslands, and turns green ...

Images