Results 11 to 20 of about 32,108 (228)

Isolation, Characterization and Crystal Morphology Study of Bacillus thuringiensis Isolates from Soils of Punjab [PDF]

open access: yesJournal of Pure and Applied Microbiology, 2018
The bacterium Bacillus thuringiensis widely used as bio-pesticide. The specific toxic activity to insects and another microbe(s) regarding the existing of crystals that have different morphologies, sizes, numbers and compositions, as Bt strains the ...
Babita Mukhija, Veena Khanna
doaj   +2 more sources

Bacillus thuringiensis delta-endotoxin Cry1 hybrid proteins with increased activity against the Colorado potato beetle [PDF]

open access: yes, 2001
Cry1 delta-endotoxins of Bacillus thuringiensis are generally active against lepidopteran insects, but Cry1Ba and Cry1Ia have additional, though low, levels of activity against coleopterans such as the Colorado potato beetle.
Naimov, S.   +4 more
core   +1 more source

Bacillus thuringiensis Toxins: Functional Characterization and Mechanism of Action [PDF]

open access: yes, 2021
Bacillus thuringiensis (Bt)-based products are the most successful microbial insecticides to date. This entomopathogenic bacterium produces different kinds of proteins whose specific toxicity has been shown against a wide range of insect orders ...

core   +1 more source

Constitutive Activation of the Midgut Response to Bacillus thuringiensis in Bt-Resistant Spodoptera exigua [PDF]

open access: yes, 2010
Bacillus thuringiensis is the most effective microbial control agent for controlling numerous species from different insect orders. The main threat for the long term use of B. thuringiensis in pest control is the ability of insects to develop resistance.
Ferre, J.   +42 more
core   +1 more source

Solubilization, Activation, and Insecticidal Activity of Bacillus thuringiensis Serovar thompsoni HD542 Crystal Proteins [PDF]

open access: yes, 2008
Cry15Aa protein, produced by Bacillus thuringiensis serovar thompsoni HD542 in a crystal together with a 40 kDa accompanying protein is one of a small group of non-typical, less well-studied members of the Cry family of insecticidal proteins, and may ...
Karlova, R.B.   +6 more
core   +1 more source

Dominant negative phenotype of Bacillus thuringiensis Cry1Ab, Cry11Aa and Cry4Ba mutants suggest hetero-oligomer formation among different Cry toxins. [PDF]

open access: yes, 2011
Background - Bacillus thuringiensis Cry toxins are used worldwide in the control of different insect pests important in agriculture or in human health. The Cry proteins are pore-forming toxins that affect the midgut cell of target insects.
Leivi Portugal   +18 more
core   +1 more source

Enhanced transformation efficiency of recalcitrant Bacillus cereus and Bacillus weihenstephanensis isolates upon in vitro methylation of plasmid DNA [PDF]

open access: yes, 2008
Digestion patterns of chromosomal DNAs of Bacillus cereus and Bacillus weihenstephanensis strains suggest that Sau3AI-type restriction modification systems are widely present among the isolates tested.
Abee, T.   +5 more
core   +1 more source

Genetic relationships between sympatric populations of Bacillus cereus and Bacillus thuringiensis, as revealed by rep-PCR genomic fingerprinting

open access: yesMemorias do Instituto Oswaldo Cruz, 2008
The bacterial strain Bacillus cereus is closely related to Bacillus thuringiensis, although any genetic relationship between the two strains is still in debate.
Ana Paula S Peruca   +2 more
doaj   +1 more source

Novel bacteriophages containing a genome of another bacteriophage within their genomes [PDF]

open access: yes, 2012
The work was funded by the Scottish Government’s Rural and Environment Science and Analytical Services (RESAS) DivisionA novel bacteriophage infecting Staphylococus pasteuri was isolated during a screen for phages in Antarctic soils.
Makarova Kira S.   +28 more
core   +1 more source

The pore-forming protein Cry5B elicits the pathogenicity of Bacillus sp. against Caenorhabditis elegans. [PDF]

open access: yesPLoS ONE, 2011
The soil bacterium Bacillus thuringiensis is a pathogen of insects and nematodes and is very closely related to, if not the same species as, Bacillus cereus and Bacillus anthracis. The defining characteristic of B. thuringiensis that sets it apart from B.
Melanie F Kho   +8 more
doaj   +1 more source

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