Hyun-woo Park, Dennis K. Bideshi, Brian A. Federici
A fundamental principal of resistance management is that the more complex and potent a toxin mixture, the slower resistance will develop to the mixture in an insect population. Thus, to develop more...
Synergy between Toxins of Bacillus thuringiensis subsp. israelensis and Bacillus sphaericus (2004)
Margaret C. Wirth, Joshua A. Jiannino, Brian A. Federici, William E. Walton
Synergistic interactions among the multiple endotoxins of Bacillus thuringiensis subsp. israelensis de Barjac play an important role in its high toxicity to mosquito larvae and the absence of...
Nayer S. Zahiri, Brian A. Federici, Mir S. Mulla
In the laboratory, three microbial mosquito larvicidal products consisting of Bacillus thuringiensis ssp. israelensis de Barjac (Bti), Bacillus sphaericus (Neide) (Bsph) (strain 2362), and the...
Margaret C. Wirth, William E. Walton, Brian A. Federici
The 2362 strain of Bacillus sphaericus, which produces a binary toxin highly active against Culex mosquitoes, has been developed recently as a commercial larvicide. It is being used currently in...
Wirth, Margaret C., Federici, Brian A., Walton, William E.
Bacillus sphaericus is a mosquitocidal bacterium recently developed as a commercial larvicide that is used worldwide to control pestiferous and vector mosquitoes. Whereas B. sphaericus is highly...
Park, Hyun-Woo, Bideshi, Dennis K., Federici, Brian A.
Cry1 protoxins of Bacillus thuringiensis are insecticidal 135-kDa proteins synthesized and assembled into parasporal crystals during sporulation. After ingestion, these crystals dissolve in the...
Meyer, Susan K., Tabashnik, Bruce E., Liu, Yong-Biao, Wirth, Margaret C., Federici, Brian A.
We tested Cyt1Aa, a cytolytic endotoxin of Bacillus thuringiensis, against susceptible and Cry1A-resistant larvae of two lepidopteran pests, diamondback moth (Plutella xylostella) and pink bollworm...
Park, Hyun-Woo, Ge, Baoxue, Bauer, Leah S., Federici, Brian A.
The insecticidal activity of Bacillus thuringiensis strains toxic to coleopterous insects is due to Cry3 proteins assembled into small rectangular crystals. Toxin synthesis in these strains is...
Wirth, Margaret C., Delécluse, Armelle, Federici, Brian A., Walton, William E.
A novel mosquitocidal bacterium, Bacillus thuringiensis subsp. jegathesan, and one of its toxins, Cry11B, in a recombinant B. thuringiensis strain were evaluated for cross-resistance with strains of...
Federici, Brian A., Bauer, Leah S.
The insecticidal activity of Bacillus thuringiensis is due primarily to Cry and Cyt proteins. Cry proteins are typically toxic to lepidopterous, coleopterous, or dipterous insects, whereas the known...
Eason, Jane E., Hice, Robert H., Johnson, Jeffrey J., Federici, Brian A.
Substitution of granulin from the Trichoplusia ni granulosis virus (TnGV) for polyhedrin of the Autographa californica multinucleocapsid nuclear polyhedrosis virus (AcMNPV) yielded a few very large...
Park, Hyun-Woo, Bideshi, Dennis K., Federici, Brian A.
A novel recombinant Bacillus thuringiensis subsp. israelensis strain that produces the B. sphaericus binary toxin, Cyt1Aa, and Cry11Ba is described. The toxicity of this strain (50% lethal...
Rickettsia-Like Organism Causing Disease in a Crangonid Amphipod from Florida
Federici, Brian A., Hazard, Edwin I., Anthony, Darrell W.
A rickettsia-like organism causing high mortality and gross pathology has been found infecting over 40% of a population of the freshwater crustacean, Crangonyx (near) floridanus Bousfield, in...
Hybridzygotes of Coelomomyces dodgei and Coelomomyces punctatus can be produced in the laboratory by making reciprocal crosses of their gametes. Although the F1 hybrid sporophyte is viable, the F1...
Experimental hybridization of Coelomomyces dodgei and Coelomomyces punctatus
Two closely related fungi, Coelomomyces dodgei and C. punctatus (Chytridiomycetes; Blastocladiales), showing considerable potential for mosquito control, have been hybridized. Both species have life...
Enveloped double-stranded DNA insect virus with novel structure and cytopathology
An unusual type of virus has been isolated from larvae of the cabbage looper, Trichoplusia ni (Lepidoptera; Noctuidae). The virus infects a variety of tissues, including fat body, epidermis, and...
Wirth, Margaret C., Park, Hyun-Woo, Walton, William E., Federici, Brian A.
Insecticides based on Bacillus thuringiensis subsp. israelensis have been used for mosquito and blackfly control for more than 20 years, yet no resistance to this bacterium has been reported....
A viral caspase contributes to modified apoptosis for virus transmission
Bideshi, Dennis K., Tan, Yeping, Bigot, Yves, Federici, Brian A.
The Spodoptera frugiperda ascovirus, a DNA virus that attacks lepidopterans, codes for an executioner caspase synthesized by 9 h after infection of Sf21 cells. This caspase alone induces apoptosis in...
Wirth, Margaret C., Federici, Brian A., Walton, William E.
Bacillus sphaericus is a mosquitocidal bacterium recently developed as a commercial larvicide that is used worldwide to control pestiferous and vector mosquitoes. Whereas B. sphaericus is highly...
Park, Hyun-Woo, Bideshi, Dennis K., Federici, Brian A.
Cry1 protoxins of Bacillus thuringiensis are insecticidal 135-kDa proteins synthesized and assembled into parasporal crystals during sporulation. After ingestion, these crystals dissolve in the...
Meyer, Susan K., Tabashnik, Bruce E., Liu, Yong-Biao, Wirth, Margaret C., Federici, Brian A.
We tested Cyt1Aa, a cytolytic endotoxin of Bacillus thuringiensis, against susceptible and Cry1A-resistant larvae of two lepidopteran pests, diamondback moth (Plutella xylostella) and pink bollworm...
Park, Hyun-Woo, Ge, Baoxue, Bauer, Leah S., Federici, Brian A.
The insecticidal activity of Bacillus thuringiensis strains toxic to coleopterous insects is due to Cry3 proteins assembled into small rectangular crystals. Toxin synthesis in these strains is...
Wirth, Margaret C., Delécluse, Armelle, Federici, Brian A., Walton, William E.
A novel mosquitocidal bacterium, Bacillus thuringiensis subsp. jegathesan, and one of its toxins, Cry11B, in a recombinant B. thuringiensis strain were evaluated for cross-resistance with strains of...
Federici, Brian A., Bauer, Leah S.
The insecticidal activity of Bacillus thuringiensis is due primarily to Cry and Cyt proteins. Cry proteins are typically toxic to lepidopterous, coleopterous, or dipterous insects, whereas the known...
Eason, Jane E., Hice, Robert H., Johnson, Jeffrey J., Federici, Brian A.
Substitution of granulin from the Trichoplusia ni granulosis virus (TnGV) for polyhedrin of the Autographa californica multinucleocapsid nuclear polyhedrosis virus (AcMNPV) yielded a few very large...
Park, Hyun-Woo, Bideshi, Dennis K., Federici, Brian A.
A novel recombinant Bacillus thuringiensis subsp. israelensis strain that produces the B. sphaericus binary toxin, Cyt1Aa, and Cry11Ba is described. The toxicity of this strain (50% lethal...
Rickettsia-Like Organism Causing Disease in a Crangonid Amphipod from Florida
Federici, Brian A., Hazard, Edwin I., Anthony, Darrell W.
A rickettsia-like organism causing high mortality and gross pathology has been found infecting over 40% of a population of the freshwater crustacean, Crangonyx (near) floridanus Bousfield, in...
Hybridzygotes of Coelomomyces dodgei and Coelomomyces punctatus can be produced in the laboratory by making reciprocal crosses of their gametes. Although the F1 hybrid sporophyte is viable, the F1...
Experimental hybridization of Coelomomyces dodgei and Coelomomyces punctatus
Two closely related fungi, Coelomomyces dodgei and C. punctatus (Chytridiomycetes; Blastocladiales), showing considerable potential for mosquito control, have been hybridized. Both species have life...
Enveloped double-stranded DNA insect virus with novel structure and cytopathology
An unusual type of virus has been isolated from larvae of the cabbage looper, Trichoplusia ni (Lepidoptera; Noctuidae). The virus infects a variety of tissues, including fat body, epidermis, and...
Wirth, Margaret C., Park, Hyun-Woo, Walton, William E., Federici, Brian A.
Insecticides based on Bacillus thuringiensis subsp. israelensis have been used for mosquito and blackfly control for more than 20 years, yet no resistance to this bacterium has been reported....
A viral caspase contributes to modified apoptosis for virus transmission
Bideshi, Dennis K., Tan, Yeping, Bigot, Yves, Federici, Brian A.
The Spodoptera frugiperda ascovirus, a DNA virus that attacks lepidopterans, codes for an executioner caspase synthesized by 9 h after infection of Sf21 cells. This caspase alone induces apoptosis in...
Minireplicon from pBtoxis of Bacillus thuringiensis subsp. israelensis▿
Tang, Mujin, Bideshi, Dennis K., Park, Hyun-Woo, Federici, Brian A.
A 2.2-kb fragment containing a replicon from pBtoxis, the large plasmid that encodes the insecticidal endotoxins of Bacillus thuringiensis subsp. israelensis, was identified, cloned, and sequenced....
Bideshi, Dennis K., Demattei, Marie-Véronique, Rouleux-Bonnin, Florence, Stasiak, Karine, Tan, Yeping, Bigot, Sylvie, ...
Ascoviruses (family Ascoviridae) are double-stranded DNA viruses with circular genomes that attack lepidopterans, where they produce large, enveloped virions, 150 by 400 nm, and cause a chronic,...
Wirth, Margaret C., Yang, Yangkun, Walton, William E., Federici, Brian A., Berry, Colin
Two mosquitocidal toxins (Mtx) of Bacillus sphaericus, which are produced during vegetative growth, were investigated for their potential to increase toxicity and reduce the expression of insecticide...
Tang, Mujin, Bideshi, Dennis K., Park, Hyun-Woo, Federici, Brian A.
We recently identified a minireplicon of pBtoxis from Bacillus thuringiensis subsp. israelensis that contained an operon encoding two novel proteins (ORF156 and ORF157), both of which are required...
Swiecicka, Izabela, Bideshi, Dennis K., Federici, Brian A.
A new isolate (IS5056) of Bacillus thuringiensis subsp. thuringiensis that produces a novel variant of Cry1Ab, Cry1Ab21, was isolated from soil collected in northeastern Poland. Cry1Ab21 was composed...