- Bacillus thuringiensis is a
Gram-positive, soil-dwelling bacterium, commonly used as a biological
alternative to a pesticide; alternatively, the Cry toxin may be
extracted and used as a pesticide.
- B. thuringiensis was first discovered
in 1902 by Japanese biologist Shigetane Ishiwatari. In 1911, B.
thuringiensis was rediscovered in Germany by
Ernst Berliner, who
isolated it as the cause of a disease called Schlaffsucht in flour moth
caterpillars.
- Bacillus thuringiensis is a
naturally-occurring soil bacterium that produces poisons which cause
disease in insects.
- Bt toxins are considered
environmentally friendly by many farmers and may be a potential
alternative to broad spectrum insecticides.Large-scale applications
of B.t. can have far reaching ecological impacts.
- Bacillus thuringiensis products
available in the United States are comprised of one of five varieties
- Each of the more than 800 strains of
Bacillus thuringiensis may exhibit different toxicity to insects,
rodents and humans. An aeration strategy was proposed for foam
control in an airlift reactor with double wire mesh draft tubes. The
airlift reactor was employed in the cultivation of Bacillus
thuringiensis for thuringiensin production.
- A two-step procedure was used to
place a cryIC crystal protein gene from Bacillus thuringiensis subsp.
aizawai into the chromosomes of two B. thuringiensis subsp. kurstaki
strains containing multiple crystal protein genes.
- The production of the bioinsecticide
can be done using the aerobic cultivation.
- The preparations of spores and
crystals of Bacillus thuringiensis have been used for about 60 years for
the control of insects harmful to the cultivated plants and forests and,
also, for the control of insect vectors of diseases.
- The local production of Bt
biopesticides using strains isolated in the Laboratory and showing
originalities, for the development of local biopesticides
industries and biofarming promotion.
- Detailed techno-economic analysis of
alternative growth substrates, namely, raw wastewater sludge; hydrolyzed
wastewater sludge; starch industry wastewater for Bacillus thuringiensis
var. kurstaki HD-1 (Bt) biopesticides production in comparison with
semi-synthetic commercial soyameal medium was carried out.
- To develop a cost-effective process
for the production of Bacillus thuringiensis based insecticide, it is
important to cultivate the bacterial strain in rich medium to obtain the
highest yields of spore-crystal complexes.
- We optimized the PCR method to detect
genetically engineered Bacillus thuringiensis (Bt) maize in open
quarantine fields in Kenya.
- In the Effects of Protoplast Fusion
on δ-endotoxin Production in Bacillus thuringiensis Spp. (H14) mutant
forms of Bacillus thuringiensis spp. israelensis (H14) were
produced.
- Three Bacillus thuringiensis isolates
designated 1M, K10-2 and V24-M with varying levels of toxicity to Chilo
partellus (spotted stalk borer) were characterized to establish the
basis for the differential toxicity and to identify any unique
properties that may be used to screen other isolates.
- Transgenic technology, involving a
wide range of pesticidal genes from the bacterium Bacillus thuringinesis (Bt), dominates the scenario of
agricultural biotechnology. At the same time, Bt technology is also the most focused
target of vehement anti-tech activism.
- The development of the production and
use of Bacillus thuringiensis in Brazil at a commercial scale
faces
certain difficulties, among them the establishment of efficient
methodologies for the quantitation of toxic products to be
commercialized.
- The recently sequenced 218 kb genome
of morphologically atypical Bacillus thuringiensis phage 0305φ8-36
exhibited only limited detectable homology to known bacteriophages.
The only known relative of this phage is a string of phage-like genes
called BtI1 in the chromosome of B. thuringiensis israelensis.
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General Information
- Bacillus Thuringeinsis
- Bacillus Thuringeinsis Fact
sheet
- Journal of Bacillus
Thuringeinsis
- Pesticide Information Profiles
- Bacillus Thuringeinsis
Information
Research
Institute
- Research Institute in
California
- Research Institute in China
- Research Institute in Colorado
- Research Institute in India
- Research Institute in Navarra
- Research Institute in USA
Consultants
- Consultant from Canada
- Consultant from India
- Canadian Consultant
- Consultant from USA
- International Consultant
Production
- Bioinsecticide production by the
bacterium Bacillus Thuringiensis
- Production of Bacillus Thuringiensis
biopesticide using commercial lab medium and agricultural by-products as
nutrients sources.
- Human Cell Exposure Assays of
Bacillus thuringiensis Commercial Insecticides: Production of Bacillus
cereus-Like Cytolytic Effects from Outgrowth of Spores
- Study and Production of Bacillus
Thuringiensis biopesticide.
- Techno-economic Analysis of Bacillus
thuringiensis Biopesticides Production from Wastewater and Wastewater
Sludge
Process
- Activation Process of
Dipteran-Specific Insecticidal Protein Produced by Bacillus
thuringiensis subsp. israelensis
- Cultivation of Bacillus thuringiensis
in an airlift reactor with wire mesh draft tubes
- Enhanced Production of Insecticidal
Proteins in Bacillus thuringiensis Strains Carrying an Additional
Crystal Protein Gene in Their Chromosomes
- Evaluationof bacterial isolates from
salty soils and Bacillus Thuringeinsis strains for the biocontrol of
fusarium dry root of potato tubers
- Improvement of Bacillus thuringiensis
Bioinsecticide Production by Fed-batch Culture on Low Cost Effective
Medium
- Production of Bio-inseticide Bacillus
thuringiensis var.israelensis in Semicontinuous Processes Combined with
Batch Processes for Sporulation
- Revision of the Nomenclature for the
Bacillus thuringiensis Pesticidal Crystal Proteins
- Solid-state fermentation of Bacillus
thuringiensis tolworthi to control fall armyworm in maize
Applications
- The Biopesticide Bacillus
thuringiensis and its Applications in Developing Countries
- Effectiveness of Dead-Spore Bacillus
thuringiensis Formulation Against Diamondback Moth
- Evaluation of Bacillus Thuringiensis
isolates against root-knot nematodes following seed application in okra
and mungbean
- Laboratory Assessment of the Effects
of Bacillus thuringiensis on Native Lepidoptera
Functions
- Biological Activity of Bacillus
thuringiensis (Berliner) Strains on Larvae and Adults of Ceratitis
capitata (Wiedemann) (Diptera:
Tephritidae)
- Bacillus thuringiensis crystal
protein (δ-endotoxin) gene expression is independent of early
sporulation specific functions
- Genetic modification of Bacillus
Thuringiensis Var.Kurstaki HD-73 to overproduce Melanin, UV resistance
and their insecticidal potentiality against potato tuber moth.
- Spore and crystal formation in
Bacillus thuringiensis var.thuringiensis during growth in cystine and
cysteine.
- Subspecies-Dependent Regulation of
Bacillus thuringiensis Protoxin Genes
Reports
- American Academy of Microbiology
report
- Bacillus thuringiensis subsp. konkukian
(Serotype H34) Superinfection: Case Report and Experimental Evidence of
Pathogenicity in Immunosuppressed Mice
- Microbial Pest Control Agent of Bacillus
thuringiensis Report
- Environmental and health impacts of
Bacillus thuringiensis israelensis
- History of Bacillus thuringiensis Berliner
research and development
- Lack
of cross-reactivity between the Bacillus thuringiensis derived protein
Cry1F in maize grain and dust mite Der p7 protein with human sera
positive for Der p7-IgE
- Comparative genomics of Bacillus
thuringiensis phage 0305φ8-36: defining patterns of descent in a novel
ancient phage lineage
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Technology
- Biopesticide Production
Technology
- Transgenic BT Technology
- Methedology for fast evaluation of
Bacillus Thuringiensis crystal protien content.
- Detection of Bacillus thuringiensis
genes in transgenic maize by the PCR method and FTA paper
technology.
- Effects of Protoplast Fusion on
δ-endotoxin Production in Bacillus thuringiensis Spp.
- Molecular characterization of
Bacillus thuringiensis strains with differential toxicity to the spotted
stalk borer, Chilo partellus
- A real-time PCR method to quantify
spores carrying the Bacillus thuringiensis var. israelensis cry4Aa and
cry4Ba genes in soil
Project
- Pilot Project of Bacillus
Thuringiensis against western spruce budworm in central Montana
- Control of Mosquito infestation in the
bootheel area of southeast missouri.
- To
determine the potential of Bacillus thuringiensis, for the control of a
range of insect pests of stored products in the tropics
- Development and
Application of Microbial Insecticides for Biological Control of Mosquito
in Gaza Strip
- Mesoscale Modeling of the Bacillus
thuringiensis Sporulation Network Based on Stochastic Kinetics and Its
Application for in Silico Scale-down
- Bt (Bacillus thuringiensis) Potato
Project in South Africa
- Toxins of Bacillus thuringiensis in
Transgenic Organisms: Persistence and Ecological Effects
Patent
- Bacillus Thuringiensis containing
composition
- Bacillus Thuringiensis sporulation
gene
- Insecticidal composition of Bacillus
Thuringiensis admixed with pyrethrum
- Liquid compositions of Bacillus
Thuringiensis
- Bacillus Thuringiensis cry gene and
protein
- Bacillus Thuringiensis toxin
enhancer
Material Safety Data
Sheet
- Agree WG
- BaritoneTM Bio-Insecticide
- Costar
- Deliver
- Bacillus thuringiensis subspecies
israelensis
- Bacillus thuringiensis
- Vectobac
Regulatory Facts
- Re-evaluation Decision Bacillus
thuringiensis
- Environmental Health Criteria of
Bacillus thuringiensis
- EPA's Regulation of Bacillus thuringiensis (Bt) Crops
- Reregistration Eligibility Decision
(RED) Facts of Bacillus
thuringiensis
- Reregistration Eligibility Decision (RED) of
Bacillus thuringiensis
- Review
report for the active substance Bacillus thuringiensis ssp. aizawai,
strain GC-91
Toxicity
- Absence of toxicity of Bacillus thuringiensis
pollen to black swallowtails under field conditions
- Toxicity of Bacillus thuringiensis CrylAb
toxin to the predator chrysoperla carnea
- Comparative Toxicity of Bacillus
thuringiensis var. israelensis Crystal Proteins in aiuo and in
tritvo
- Toxicity of Bacillus thuringiensis b-exotoxin
to Three Species of Fruit Flies (Diptera: Tephritidae)
- Toxicity of local Bacillus Thuringiensis
isolates against drosophila melanogaster
- Toxicity and Mode of Action of Bacillus
thuringiensis Cry Proteins in the Mediterranean Corn Borer, Sesamia
nonagrioides (Lefebvre)
- Toxicity of Bacillus thuringiensis Spore and
Crystal Protein to Resistant Diamondback Moth (Plutella
xylostella)
- Toxicity of Bacillus thuringiensis
israelensis on the Nontarget Organisms Triops cancriformis, Branchipus
schaefferi, Leptestheria dahalacensis (Crustacea: Branchiopoda:
Notostraca, Anostraca, Spinicaudata)
- Toxicity of several -endotoxins of Bacillus
thuringiensis against Helicoverpa armigera (Lepidoptera: Noctuidae) from
Spain
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