Some chemical and biological studies on an exotoxin from Bacillus thuringiensis var. thuringiensis Berliner
نویسندگان
چکیده
منابع مشابه
Determination of exotoxin in Bacillus thuringiensis cells.
The presence of exotoxin in Bacillus thuringiensis was demonstrated and its quantity in the cells determined. The concentration of exotoxin in the producing microorganism is approximately half the concentration of ATP. Exotoxin is produced at such a rate that the cell excretes 1/5 to 1/4 of its exotoxin content into the medium per minute.
متن کاملChemical composition of the cell wall of Bacillus thuringiensis var. thuringiensis.
During an investigation of lytic enzymes associated with sporulation of Bacillus thuringiensis var. thuringiensis (ATCC 10792), it was necessary to determine the chemical structure of the organism's cell wall. The present communication describes this aspect of the investigation. A detailed description of the lytic enzymes will be reported separately. Late-exponential-phase cells grown in a vigo...
متن کاملBacillus Thuringiensis Berliner: Isolation to Application: a Review
Bacillus thuringiensis (Bt) is a ubiquitous soil bacterium that produces an array of insecticidal crystal proteins with varied specificities. Recently a lot of effort is being made to collect, characterize, utilize novel and more potent strains of Bt. The crystal proteins (Cry proteins) produced by Bt are important in agricultural, horticultural and public health pest management. In addition to...
متن کامل[Potential of Bacillus thuringiensis israelensis Berliner for controlling Aedes aegypti].
The importance of the entomopathogenic bacterium Bacillus thuringiensis israelensis in the control of Aedes aegypti is presented. The use and potential of B. thuringiensis israelensis against the mosquito vector of dengue fever is described. Other aspects such as insect's resistance development against chemicals and advantages and constraints of using microbial control are discussed. Emphasis i...
متن کاملAn ABC Transporter from Bacillus thuringiensis Is Essential for -Exotoxin I Production
-Exotoxin I is a nonspecific insecticidal metabolite secreted by some Bacillus thuringiensis strains. Several studies of B. thuringiensis strains that have lost the capacity to produce -exotoxin I have suggested that there is a strong correlation between high levels of -exotoxin I production and the ability to synthesize crystal proteins. In this study, we showed that a mutant strain, B. thurin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1969
ISSN: 0306-3283
DOI: 10.1042/bj1140001pa