摘要:
This invention relates to a crystalline protein toxin useful as a biological insecticide which is known as P-2 toxin, or P-2 delta-endotoxin and which is produced by Bacillus thuringiensis. More specifically, this invention relates to the cloning and expression in various microorganisms of the gene coding for the P-2 delta-endotoxin, and related novel insecticide compositions incorporating P-2 toxin.
摘要:
The invention provides Bacillus subtilis strains NCIB 12375, NCIB 12376 and NCIB 12616, which have improved antimicrobial activity. The invention also relates to the use of such strains in the control of microbial infections and microbial contamination.
摘要:
The present invention relates to the synthesis by applica tion of recombinant DNA technology of recombinant reovirus nonstructural protein sigma NS and its use as a non-specific binding agent for single stranded ssRNA's. This property of sigma NS protein can be employed when it is used as a reagent in protecting unstable RNA during extraction pro cesses and more significantly as a reagent for the consentra tion of ssRNA samples for use in hybridization probe assays.
摘要:
Disclosed is a method for collecting bacteria from bacterial or fungal fermentation culture broth, the method comprising the steps of: a) mixing bacterial or fungal fermentation culture medium with a carboxylated chitosan to obtain a mixture; optionally, b) adding a sodium alginate solution to the mixture and mixing homogeneously; and c) precipitating to obtain bacterial or fungal cell precipitate or culture supernatant.