Degradation of the insecticidal toxin produced by Bacillus thuringiensis var. kurstaki by extracellular proteases produced by Chrysosporium sp.
نویسندگان
چکیده
منابع مشابه
Degradation of the insecticidal toxin produced by Bacillus thuringiensis var. kurstaki by extracellular proteases produced by Chrysosporium sp.
AIMS Some Cry proteins produced by the soil bacterium Bacillus thuringiensis (Bt) or by transgenic Bt plants persist in agricultural soils for an extended period of time, which may pose a hazard for nontarget soil organisms. The aims of our study were to screen for soil fungi capable of degrading the Cry1Ac toxin and to identify the mechanisms that lead to the inactivation of this protein. ME...
متن کاملStudy on Activity and Stability of Proteases from Bacillus Sp. Produced by Submerged Fermentation
Objective: Investigations were carried out to isolate bacteria from saline-alkali soils and determined optimized alkaline protease activity and stability produced by a wild strain of bacillus sp. in submerged fermentation (SMF). Methods: Optimum temperature for enzyme activity in the crude extract was 40 ◦C at a pH between 8.0 and 9.0. The studies on pH stability showed that the enzyme...
متن کاملStudy on Activity and Stability of Proteases from Bacillus Sp. Produced by Submerged Fermentation
Objective: Investigations were carried out to isolate bacteria from saline-alkali soils and determined optimized alkaline protease activity and stability produced by a wild strain of bacillus sp. in submerged fermentation (SMF). Methods: Optimum temperature for enzyme activity in the crude extract was 40 ◦C at a pH between 8.0 and 9.0. The studies on pH stability showed that the enzyme...
متن کاملIsolation and screening of extracellular proteases produced by new Isolated Bacillus sp
Article history: Received on: 10/07/2012 Revised on: 03/08/2012 Accepted on:23/08/2012 Available online: 28/09/2012 Bacterial are well known for their ability to excrete enzymes into the environment. Bacillus sp. being industrially important organisms produces a wide variety of extra-cellular enzymes including proteases. Bacillus sp. isolated from local marine samples collected from Saudi Arabi...
متن کاملstudy on activity and stability of proteases from bacillus sp. produced by submerged fermentation
objective: investigations were carried out to isolate bacteria from saline-alkali soils and determined optimized alkaline protease activity and stability produced by a wild strain of bacillus sp. in submerged fermentation (smf). methods: optimum temperature for enzyme activity in the crude extract was 40 ◦c at a ph between 8.0 and 9.0. the studies on ph stability showed that the enzyme was stab...
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ژورنال
عنوان ژورنال: Journal of Applied Microbiology
سال: 2008
ISSN: 1364-5072,1365-2672
DOI: 10.1111/j.1365-2672.2007.03644.x