نتایج جستجو برای: bacillus thuringiensis var kurstaki
تعداد نتایج: 81473 فیلتر نتایج به سال:
A total of 128 Bacillus cereus-like strains isolated from fresh fruits and vegetables for sale in retail shops in Denmark were characterized. Of these strains, 39% (50/128) were classified as Bacillus thuringiensis on the basis of their content of cry genes determined by PCR or crystal proteins visualized by microscopy. Random amplified polymorphic DNA analysis and plasmid profiling indicated t...
The development of realistic risk models that predict the dissemination, dispersion and persistence of potential biothreat agents have utilized nonpathogenic surrogate organisms such as Bacillus atrophaeus subsp. globigii or commercial products such as Bacillus thuringiensis subsp. kurstaki. Comparison of results from outdoor tests under different conditions requires the use of genetically iden...
A 75-kilobase plasmid from Bacillus thuringiensis var. kurstaki (HD-244) was associated with the k-73 type insecticidal crystal protein production by mating into B. cereus and subsequent curing of excess plasmids. This plasmid was partially digested with endonuclease R . Sau3A and the fragments were cloned into Escherichia coli (HB101) on vector pBR322. Candidate clones were screened for plasmi...
*Correspondence: Md. Mozammel Hoq, Laboratory215, Department of Microbiology, University of Dhaka, Dhaka1000, Bangladesh e-mail: [email protected] Bacillus thuringiensis (Bt) biopesticides, a recognized eco-friendly pest control agent, can be used to reduce many problems associated with indiscriminate use of chemical pesticides such as environmental pollutions, public health problems, emergence ...
Helicoverpaarmigera is one of the most destructive pests field crops worldwide. The Study was designed to investigate through laboratory screening insecticidal activity Ricinus communis, Cassia occidentalis and Bacillus thuringiensis var. Kurstaki (Btk) their combinations against 2nd larval instar H. armigera. Five concentrations (4%, 6%, 8%, 10% 12%) each plant extract (0.62, 1.25, 2.5, 5, 10 ...
Representative strains of the Bacillus cereus group of bacteria, including Bacillus anthracis (11 isolates), B. cereus (38 isolates), Bacillus mycoides (1 isolate), Bacillus thuringiensis (53 isolates from 17 serovars), and Bacillus weihenstephanensis (2 isolates) were assigned to 59 sequence types (STs) derived from the nucleotide sequences of seven alleles, glpF, gmk, ilvD, pta, pur, pycA, an...
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