Objective: This study aimed to separate and pure chitinase producing actinomycetes with stronger activity from lawn soils of Beijing. Method: Morphology and culture characteristics were observed. physiological and biochemical characteristics were detected. 16SrDNA sequence was analyzed. Result: The highest chitinase activity strain was Bn035, whose relative diameter of transparent circle K2 was 3.42 at which the chitinase activity of fermentation broth reached a maximum value of 1.23 U/mL in the 6th day. Crude enzyme solution and bacteria cake of strain Bn035 generated stronger bacterial resistance to all root rot fungi which indicated that the strain had a strong broad-spectrum resistance to root rot fungi. Conclusion: The strain was identified as Streptomyces scabrisporus. It will be a potential biological control function.

Based on discussing the public law quality of government information,we construct the theory basement of government information should be opened up according to law.Then we discuss the shortcomings of our country's current situation of opening up,the essentiality and imperative of it.According to the categories of government information.we give a visual view of government information to readers.The article end up in explaining four legal ways to promote the open up by analysing the function of government information.