Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| monitoring resistance to bacillus thuringiensis subsp. israelensis in the field by performing bioassays with each cry toxin separately. | bacillus thuringiensis subsp. israelensis (bti) is increasingly used worldwide for mosquito control and is the only larvicide used in the french rhône-alpes region since decades. the artificial selection of mosquitoes with field-persistent bti collected in breeding sites from this region led to a moderate level of resistance to bti, but to relatively high levels of resistance to individual bti cry toxins. based on this observation, we developed a bioassay procedure using each bti cry toxin separ ... | 0 | 24037105 |
| bacillus thuringiensis cry1a toxins are versatile proteins with multiple modes of action: two distinct pre-pores are involved in toxicity. | cry proteins from bacillus thuringiensis are insecticidal pfts (pore-forming toxins). in the present study, we show that two distinct functional pre-pores of cry1ab are formed after binding of the protoxin or the protease-activated toxin to the cadherin receptor, but before membrane insertion. both pre-pores actively induce pore formation, although with different characteristics, and contribute to the insecticidal activity. we also analysed the oligomerization of the mutant cry1abmod protein. th ... | 0 | 24456341 |
| functional characterizations of residues arg-158 and tyr-170 of the mosquito-larvicidal bacillus thuringiensis cry4ba. | the insecticidal activity of bacillus thuringiensis (bt) cry toxins involves toxin stabilization, oligomerization, passage across the peritrophic membrane (pm), binding to midgut receptors and pore-formation. the residues arg-158 and tyr-170 have been shown to be crucial for the toxicity of bt cry4ba. we characterized the biological function of these residues. in mosquito larvae, the mutants r158a/e/q (r158) could hardly penetrate the pm due to a significantly reduced ability to alter pm permeab ... | 0 | 24286331 |
| essential oils from two eucalyptus from tunisia and their insecticidal action on orgyia trigotephras (lepidotera, lymantriidae). | essential oils extracted from aromatic and medicinal plants have many biological properties and are therefore an alternative to the use of synthetic products. the chemical composition of essential oils from two medicinal plants (eucalyptus globulus and e. lehmannii) was determined and, their insecticidal effects on the third and fourth larval stages of orgyia trigotephras were assessed. | 0 | 25204015 |
| isoleucine at position 150 of cyt2aa toxin from bacillus thuringiensis plays an important role during membrane binding and oligomerization. | cyt2aa2 is a mosquito larvicidal and cytolytic toxin produced by bacillus thuringiensis subsp. darmstadiensis. the toxin becomes inactive when isoleucine at position 150 was replaced by alanine. to investigate the functional role of this position, ile150 was substituted with leu, phe, glu and lys. all mutant proteins were produced at high level, solubilized in carbonate buffer and yielded protease activated product similar to those of the wild type. intrinsic fluorescence spectra analysis sugges ... | 0 | 23527862 |
| toxicity studies for indigenous bacillus thuringiensis isolates from malang city, east java on aedes aegypti larvae. | to investigate the toxicity of indigenous bacillus thuringiensis (b. thuringiensis)isolates from malang city for controlling aedes aegypti (ae. aegypti) larvae. | 0 | 23593589 |
| draft genome sequence of bacillus thuringiensis 147, a brazilian strain with high insecticidal activity. | bacillus thuringiensis is a ubiquitous gram-positive and sporulating bacterium. its crystals and secreted toxins are useful tools against larvae of diverse insect orders and, as a consequence, an alternative to recalcitrant chemical insecticides. we report here the draft genome sequence of b. thuringiensis147, a strain isolated from brazil and with high insecticidal activity. the assembled genome contained 6,167,994 bp and was distributed in seven replicons (a chromosome and 6 plasmids). we iden ... | 0 | 26517667 |
| characterization of cry2-type genes of bacillus thuringiensis strains from soilisolated of sichuan basin, china. | sichuan basin, situated in the west of china, is the fourth biggest basin in china. in order to describe a systematic study of the cry2-type genes resources from bacillus thuringiensis strains of sichuan basin, a total of 791 bacillus thuringiensis strains have been screened from 2650 soil samples in different ecological regions. the method of pcr-restriction fragment length polymorphism (pcr-rflp) was used to identify the type of cry2 genes. the results showed that 322 bacillus thuringiensis st ... | 0 | 24031615 |
| cadherin binding is not a limiting step for bacillus thuringiensis subsp. israelensis cry4ba toxicity to aedes aegypti larvae. | bacillus thuringiensis subsp. israelensis produces three cry toxins (cry4aa, cry4ba and cry11aa) that are active against aedes aegypti larvae. the identification of the rate-limiting binding steps of cry toxins that are used for insect control in the field, such as those of b. thuringiensis subsp. israelensis, should provide targets for improving insecticides against important insect pests. previous studies showed that cry11aa binds to cadherin receptor fragment cr7-11 (cadherin repeats 7-11) wi ... | 0 | 22329749 |
| chemical and biological insecticides select distinct gene expression patterns in aedes aegypti mosquito. | worldwide evolution of mosquito resistance to chemical insecticides represents a major challenge for public health, and the future of vector control largely relies on the development of biological insecticides that can be used in combination with chemicals (integrated management), with the expectation that populations already resistant to chemicals will not become readily resistant to biological insecticides. however, little is known about the metabolic pathways affected by selection with chemic ... | 0 | 25540155 |
| the protein crystals of bacillus thuringiensis berliner. | 1955 | 13270146 | |
| [study of a strain of bacillus, pathogenic for certain insects, identifiable with bacillus thuringiensis berliner]. | 1955 | 13302859 | |
| [biological titration of preparations of spores of bacillus thuringiensis berliner]. | 1958 | 13609014 | |
| the production by bacillus thuringiensis berliner of a heat-stable substance toxic for insects. | 1959 | 13638893 | |
| [biological titration of basic preparations of bacillus thuringiensis berliner in relation to anagasta (ephestia) kuhniella zell]. | 1959 | 13806070 | |
| [new data on the role of thermostable soluble toxin produced by bacillus thuringiensis berliner]. | 1960 | 13689013 | |
| [research on the mechanism of action of bacillus thuringiensis. effect of toxemia on the protein fractions of hemolymph]. | 1960 | 13724416 | |
| [immunological relations of toxic proteins extracted from 3 strains of bacillus thuringiensis]. | 1961 | 13720385 | |
| protein turnover and the formation of protein inclusions during sporulation of bacillus thuringiensis. | 1961 | 14475423 | |
| serological studies on the formation of protein parasporal inclusions in bacillus thuringiensis. | a strain of bacillus thuringiensis has been isolated, and methods have been developed for separation of the crystalline, parasporal inclusions in a pure form. normal sporulation with concomitant crystal formation takes place when cells are incubated under suitable conditions in a nutrient free medium. serological techniques have been used to study the origin and development of the crystals. rabbit antisera have been prepared to a vegetative cell extract, suspensions of crystals, and a solution o ... | 1961 | 14475424 |
| [the formed toxin of bacillus thuringiensis. enzymatic production of toxic soluble substances by injection]. | 1962 | 14463346 | |
| lethality for mice of vegetative and spore forms of bacillus cereus and bacillus cereus-like insect pathogens injected intraperitoneally and subcutaneously. | lamanna, carl (army research office, washington, d.c.) and linda jones. lethality for mice of vegetative and spore forms of bacillus cereus and bacillus cereus-like insect pathogens injected intraperitoneally and subcutaneously. j. bacteriol. 85:532-535. 1963.-lethality for mice of bacillus thuringiensis var. thuringiensis (two strains), var. sotto (one strain), var. alesti (one strain), and b. entomocidus var. entomocidus (one strain) maintained on artificial laboratory media is dependent upon ... | 1963 | 14042929 |
| the structure of bacillus thuringiensis berliner crystals. | 1964 | 14124032 | |
| an attempt of control of leptinotarsa decemlineata with adapted bacillus thuringiensis. | 1964 | 14170554 | |
| [action of the bacterium bacillus thuringiensis berliner on blood cells of ephestia kueehniella zeller (lepidoptera)]. | 1965 | 14304698 | |
| bacillus thuringiensis as a feed additive to control dipterous pests of cattle. | 1965 | 14319398 | |
| the enzymic hydrolysis of bacillus thuringiensis berliner crystals, and the liberation of toxic fractions of bacterial origin by the chyle of pieris brassicae (linnaeus). | 1965 | 14323775 | |
| effects of parasporal inclusions of bacillus thuringiensis var. sotto ishiwata on the permeability of the gut wall of bompyx mori (linnaeus) larvae. | 1965 | 14323779 | |
| resistance of the house fly to bacillus thuringiensis berliner. | 1965 | 14323785 | |
| [isolation of an identifiable nucleotide from the "thermostable toxin" of bacillus thuringiensis var. berliner]. | 1965 | 4954022 | |
| [comparative effects of an oligo-infection by bacillus thuringiensis berl. and of complete fasting in a lepidopteron]. | 1965 | 4954781 | |
| [the figured toxin of bacillus thuringiensis. technic of separation and amino acid composition]. | 1965 | 4955637 | |
| a method of determining the rate of development of bacillus thuringiensis var. thuringiensis berliner. | 1965 | 5318695 | |
| serological studies of the protein parasporal inclusions of bacillus thuringiensis var. sotto ishiwata. | 1965 | 5827554 | |
| longevity of bacillus thuringiensis berliner in the rumen. | 1965 | 5827558 | |
| the effectiveness of the heat-stable toxin of bacillus thuringiensis var. thuringiensis berliner on larvae of musca domestica linnaeus. | 1965 | 5827560 | |
| bacteriostatic and bacteriocidal effects of extracts of foliage from various plant species on bacillus thuringiensis var. thuringiensis berliner. | 1965 | 5829857 | |
| studies on the structure of parasporal inclusions from bacillus thuringiensis. | 1965 | 5880865 | |
| [mechanism of action of bacillus thuringiensis introduced by a hymenopteran parasite into the hemolymph of a lepidopteron]. | 1965 | 5294508 | |
| on the chemical nature of the heat-stable exotoxin of bacillus thuringiensis. | 1966 | 5927971 | |
| inactivation by irradiation of spores of bacillus thuringiensis var. thuringiensis. | 1966 | 5939388 | |
| preliminary report on the larval development of the horn fly, haematobia irritans, in feces from cattle given fractions of a commercial preparation of bacillus thuringiensis. | 1966 | 5944662 | |
| the production of heat-stable toxin by nine serotypes of bacillus thuringiensis. | 1966 | 5980201 | |
| four new bacteriophages of bacillus thuringiensis. | 1966 | 5980917 | |
| an electron microscope study of protein crystals in different strains of the bacillus thuringiensis group. | 1966 | 5984731 | |
| [pigment producing variants of bacillus thuringiensis berliner isolated from the silk worm]. | 1966 | 6002934 | |
| [the formed toxin of bacillus thuringiensis. dissolution by the action of thioglycolate or cysteine]. | 1966 | 4955680 | |
| analysis of the crystal antigens of bacillus thuringiensis by gel diffusion. | 1966 | 4962995 | |
| [classification of strains of bacillus thuringiensis]. | 1967 | 4963606 | |
| [teratological effects in the nymphs and adults of insects whose larvae have ingested sublethal doses of thermostable toxin from bacillus thuringiensis berliner]. | 1967 | 4964537 | |
| [comparative action of urea and thioglycolate on the figurative toxin of bacillus thuringiensis]. | 1967 | 4965637 | |
| [enzymatic hydrolysis of the parasporal inclusion of bacillus thuringiensis by the proteases of bombyx mori l]. | 1967 | 4967613 | |
| mesosomes in m-tyrosine-inhibited bacillus thuringiensis. | 1967 | 6025420 | |
| biphasic system for separation of spores and crystals of bacillus thuringiensis. | 1967 | 6039366 | |
| electron microscopy of the crystal shape and structure of two strains of bacillus thuringiensis berliner. | 1967 | 6043165 | |
| the dissociation of bacillus thuringiensis. | 1967 | 6064047 | |
| effect of valine, leucine, and isoleucine on the production of fly toxin by bacillus thuringiensis and related organisms. | 1967 | 6073674 | |
| effect of heat-stable bacillus thuringiensis toxin on armyworms. | 1967 | 6073678 | |
| antigenic analysis of the digests of the crystal toxins of bacillus thuringiensis. | 1967 | 6073995 | |
| the toxic action of bacillus thuringiensis 'exotoxin' on drosophila reared in yeast-containing and yeast-free media. | 1967 | 6076335 | |
| effects of valine, leucine, and isoleucine on the growth of bacillus thuringiensis and related bacteria. | 1967 | 6083260 | |
| [effect of growth conditions on biological traits of some bacillus thuringiensis cultures]. | 1967 | 5618183 | |
| a critical review of bacillus thuringiensis var. thuringiensis berliner and other crystalliferous bacteria. | 1967 | 5340721 | |
| inhibition of growth of bacillus thuringiensis by amino acids in defined media. | 1968 | 4991684 | |
| chemical composition of the cell wall of bacillus thuringiensis var. thuringiensis. | 1968 | 5640393 | |
| control of the greater and lesser wax moths (galleria mellonella and achroia grisella) with bacillus thuringiensis. | 1968 | 5672009 | |
| bacteriophage of bacillus thuringiensis berliner. | 1968 | 5715033 | |
| induction of resistance to bacillus thuringiensis in a laboratory strain of house flies. | 1968 | 5723773 | |
| a classification of strains of bacillus thuringiensis berliner with a key to their differentiation. | 1968 | 5725005 | |
| inhibition of dna-dependent rna polymerase by the exotosin of bacillus thuringiensis var. gelechiae. | 1968 | 5727141 | |
| isolation and characterization of three autolytic enzymes associated with sporulation of bacillus thuringiensis var. thuringiensis. | cells of bacillus thuringiensis containing refractile spores autolyzed readily when suspended in buffer. the autolysate contained enzymes which lysed vegetative cell walls of the organism. three enzymes were isolated from the autolysate, and each was purified approximately 30-fold. one enzyme, most active near ph 4.0, was found to be an n-acetylmuramidase. the other two enzymes exhibited ph optima at 8.5. one was stimulated by cobalt ions and the other was not. the cobalt-stimulated enzyme was s ... | 1968 | 5732500 |
| biochemical homology between crystal and spore protein of bacillus thuringiensis. | the crystalline inclusion of bacillus thuringiensis, dissolved in 8 m urea containing 10% 2-mercaptoethanol and dialyzed to ph 8.3 to 8.5, was compared with a fraction obtained by the same extraction procedure from spores broken by dry rupture. the two fractions behaved similarly on chromatography with sephadex g-100 and diethylaminoethyl cellulose. the preparations behaved identically on acrylamide gel electrophoresis at ph 12 and ph 9.5. further, peptide maps of the two fractions obtained afte ... | 1968 | 5732505 |
| [the occurrence of different varieties of bacillus thuringiensis in germany]. | 1968 | 5745201 | |
| fatty acids in the genus bacillus. ii. similarity in the fatty acid compositions of bacillus thuringiensis, bacillus anthracis, and bacillus cereus. | the nature and relative abundance of fatty acids produced by two strains each of bacillus thuringiensis and of b. anthracis were studied by gas-liquid chromatography on a 12,000 theoretical plate polyester column capable of partially resolving iso- and anteiso-fatty acids with the same number of carbon atoms. unsaturated fatty acids as the bromo derivatives were separated from the saturated acids and resolved in a short se-30 column by use of programmed-temperature gas chromatography. all four s ... | 1968 | 4970227 |
| toxic subunits of the crystal of bacillus thuringiensis. | 1968 | 4973168 | |
| laboratory batch production of bacillus thuringiensis spores and crystals. | 1968 | 4874464 | |
| immunological homology between crystal and spore protein of bacillus thuringiensis. | spore suspensions containing about 0.3% crystals and crystal suspensions containing about 0.1% spores were obtained from cultures of bacillus thuringiensis by extraction with a two-phase system. both preparations were tested for the presence of contaminating material from vegetative cells and were judged to be clean. solutions of spore protein were obtained by extracting broken spores with phosphate buffer followed by extraction with either alkali- or urea-mercaptoethanol. the alkali spore or ur ... | 1968 | 4979101 |
| purification of a protein from bacillus thuringiensis toxic to larvae of lepidoptera. | the protein toxin of the parasporal body or crystal of bacillus thuringiensis (mattés isolate) has been purified severalfold by a combination of sephadex g-200 gel filtration and ammonium sulphate precipitation. it has been shown that the use of highly alkaline conditions for dissolution of the crystals does not lead to serious artifacts. the crystal toxin has been shown to be quantitatively related to the crystal antigen. it is possible that there is a second distinct toxin present in the cryst ... | 1968 | 4966083 |
| [differential sensitivity to erythromycin of sporogenesis and crystallogenesis in bacillus thuringiensis]. | 1969 | 4981440 | |
| characterization of lytic bacteriophages of bacillus thuringiensis. | 1969 | 4981486 | |
| characterization of temperate bacteriophages of bacillus thuringiensis. | 1969 | 4981487 | |
| automatic assessment of respiration during growth in stirred fermentors. | an apparatus for the continuous and automatic measurement of respiration during growth of micro-organisms in stirred aerated culture is described. the effluent atmosphere from the culture vessels is passed through commercially available oxygen and carbon dioxide gas analyzers, and their electrical output is fed to a multipoint recorder. the apparatus has been used to measure the respiration of escherichia coli, pseudomonas aeruginosa, bacillus thuringiensis, and methylococcus capsulatus during g ... | 1969 | 4984766 |
| bacillus thuringiensis: microbiological considerations. | 1969 | 4899077 | |
| polysomes from bacillus subtilis and bacillus thuringiensis. | 1969 | 4979045 | |
| method for determining bacillus thuringiensis var. thuringiensis berliner in soil. | 1969 | 4313427 | |
| oral and parenteral toxicity of bacillus thuringiensis 'exotoxin', and its inactivation in larvae of galleria mellonella. | 1969 | 5766603 | |
| ecological significance of antibiotics of some varieties of bacillus thuringiensis. | 1969 | 5777828 | |
| susceptibility of several forest insects of british columbia to commercially produced bacillus thuringiensis. ii. laboratory and field pathogenicity tests. | 1969 | 5777834 | |
| crystalline inclusions in bacillus thuringiensis. | crystalline inclusion bodies resembling those seen in clostridium cochlearium were detected in cultures of bacillus thuringiensis infected with bacteriophage. | 1969 | 5784229 |
| [insecticides from bacillus thuringiensis]. | 1969 | 5788357 | |
| some chemical and biological studies on an exotoxin from bacillus thuringiensis var. thuringiensis berliner. | 1969 | 5810059 | |
| a purification and some properties of an insecticidal exotoxin from bacillus thuringiensis berliner. | an insecticidal exotoxin from bacillus thuringiensis var. thuringiensis (berliner) has been purified. the efficiency of each stage of the purification has been ascertained and the yield of toxic material estimated by means of a quantitative bioassay. it is shown that the exotoxin is an adenine derivative substituted at position 9 and having a molecular weight of approximately 825. it can be dephosphorylated enzymically or chemically under conditions that define the exotoxin as a phosphomonoester ... | 1969 | 5820635 |
| the ecology of serotype 4b of bacillus thuringiensis. | 1969 | 5823663 | |
| metabolism of bacillus thuringiensis in relation to spore and crystal formation. | a general pattern of metabolism was determined for bacillus thuringiensis grown in a glucose-yeast extract-salts medium. the pattern did not differ significantly from that of b. cereus grown in a similar medium. acetic acid produced from glucose during exponential growth was further catabolized in the early sporulation phase of growth, at which time the specific activity of aconitate hydratase increased markedly. fluoroacetate and alpha-picolinate prevented the removal of accumulated acid, and t ... | 1969 | 5361213 |
| mode of action of bacillus thuringiensis toxic crystals in larvae of the silkworm, bombyx mori. | 1969 | 5369199 | |
| toxicity of bacillus thuringiensis for larvae of the clothes moth, tineola bisselliella. | 1969 | 5369206 | |
| the beta-exotoxins of bacillus thuringiensis. i. isolation and characterization. | 1970 | 5442843 | |
| presence of flagellar antigenic subfactors in serotype 3 of bacillus thuringiensis. | 1970 | 5442846 | |
| a new serotype of bacillus thuringiensis: b. thuringiensis var. thompsoni (serotype ii). | 1970 | 5442847 | |
| coprecipitation with lactose as a means of recovering the sporte-crystal complex of bacillus thuringiensis. | 1970 | 5442848 |