无机磷细菌的筛选及其固体发酵研究

从实验室保存的83株芽胞杆菌中初筛出11株具有解无机磷能力的菌株,通过平板法进行初筛,根据溶磷圈直径和菌落直径比值大小筛选出溶磷圈直径和菌落直径比值较大的菌株3株,进一步通过液体摇瓶培养复筛出1株分解无机磷能力最强的菌株ZP。对筛选到的3株解无机磷能力强的菌株进行固体发酵培养,研究不同培养基配方及发酵时间与菌株解磷能力之间的关系,以期为生产解磷菌制剂提供理论依据。

Study on Screening and Solid State Fermentation of Inorganic Phosphorus-dissolving Bacteria

Eleven inorganic phosphorus-dissolving bacterium strains were screened out from 83 Bacillus saved in the lab.Three bacterial strains with the larger ratio of hydrolysis circle diameter to colony diameter were screened out by the plate method.One strain ZP with the strongest phosphate-dissolving ability was screened out from the there strains by liquid submerged culture.In order to provide theoretical basis for the production of phosphate preparations,the there strains were cultured by solid fermentation to study the relationship between the phosphate-dissolving ability of strains and the different culture medium formula and fermentation time.