Results 31 to 40 of about 17,862 (191)

Corn rootworm (Coleoptera: Chrysomelidae) emergence patterns, survival, and injury in blended refuges and pure stands of short‐stature corn and tall corn

open access: yesPest Management Science, EarlyView.
Graphical Abstract Text: This study compared corn rootworm (Diabrotica spp.) emergence patterns and injury between short‐stature corn and tall corn to help inform corn rootworm management strategies in short‐stature corn Abstract BACKGROUND Short‐stature corn became commercially available in the United States in 2025 and has several desirable qualities
Devin L. Radosevich   +3 more
wiley   +1 more source

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

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   +1 more source

Isolation and characterization of bacteria from two soil samples and their effect on wheat (Triticum aestivum L.) growth promotion

open access: yesJournal of Advanced Biotechnology and Experimental Therapeutics, 2020
Since ancient times, soil bacteria play an important role on crop growth and yield by genetic transformation naturally. But the continuous use of chemical fertilizers reduces their number and proper environment for multiplication.
Gobindo Kumar Paul   +8 more
doaj   +1 more source

Transformation ofBacillus thuringiensisby electroporation [PDF]

open access: yesFEMS Microbiology Letters, 1989
Plasmids were transformed by electroporation into various strains of Bacillus thuringiensis with frequencies of up to 10(5) transformants/micrograms. pC 194 transformed all strains tested at a high frequency and cells could be stably transformed with pC194 and pUB110 simultaneously by electroporation with a frequency of 10(2) pC194+ pUB110 ...
E J, Bone, D J, Ellar
openaire   +2 more sources

Chitosan‐protected dsRNA increases efficacy against Helicoverpa armigera without compromising biosafety for pollinators

open access: yesPest Management Science, EarlyView.
Chitosan/tripolyphosphate/double‐stranded RNA (dsRNA) nanoparticles enhance RNA interference efficacy of orally delivered dsRNA against Helicoverpa armigera. Nanoparticles reduce the LC50 and do not cause deleterious effects or toxicity on beneficial insects.
Daniel DN Vasquez   +12 more
wiley   +1 more source

Completed Genomic Sequence of Bacillus thuringiensis HER1410 Reveals a Cry-Containing Chromosome, Two Megaplasmids, and an Integrative Plasmidial Prophage

open access: yesG3: Genes, Genomes, Genetics, 2020
Bacillus thuringiensis is the most used biopesticide in agriculture. Its entomopathogenic capacity stems from the possession of plasmid-borne insecticidal crystal genes (cry), traditionally used as discriminant taxonomic feature for that species. As such,
Ana Lechuga   +5 more
doaj   +1 more source

Bt agave: why it is time to explore a new biotechnological frontier

open access: yesPest Management Science, EarlyView.
Drylands cover 41% of Earth, requiring sustainable crops. Agave, drought‐ and heat‐adapted, offers high‐value products with low water needs. Pests limit yield, yet Bacillus thuringiensis (Bt) Cry proteins, successful in other plants, remain unexploited in Agave.
Aline Vitória Corim Marim   +3 more
wiley   +1 more source

Iflaviruses in arthropods: when small is mighty

open access: yesInsect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia   +3 more
wiley   +1 more source

Bacillus toyonensis biovar Thuringiensis: an overlooked entomopathogen?

open access: yesJournal of Bacteriology
Horizontal gene transfer significantly influences prokaryotic genome evolution. Bacillus cereus and Bacillus thuringiensis are nearly identical at the chromosomal level, except for B. thuringiensis producing parasporal crystals.
Diego Herman Sauka   +3 more
doaj   +1 more source

The Insecticidal Proteins of Bacillus thuringiensis [PDF]

open access: yes, 1996
Publisher Summary The chapter focuses on the classification and mode of action of the insecticidal proteins of Bacillus thuringiensis (Bt) or Bt toxin. Bt is a gram-positive, aerobic, endospore-forming bacterium. Bt toxin gene is classified into four major classes: cry I, cry II, cry III, and cry IV.
Kumar, P. Ananda   +2 more
openaire   +3 more sources

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