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Skip to Search Results- 4Bacillus thuringiensis
- 3Scirpophaga incertulas
- 2Chilo suppressalis
- 2Rice
- 1Acyrthosiphon pisum
- 1Antibiosis
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1995
Abstract: A cluster of genes of the CYP6 family was found in a series of overlapping lambda DASH clones from a genomic library of the house fly, Musca domestica, Four complete genes, CYP6A3, CYP6A4, CYP6A5, and CYP6C1, and fragments of two other genes, CYP6A6 and CYP6C2, were closely linked on a...
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Bacillus thuringiensis isolates from the Philippines: habitat distribution, delta-endotoxin diversity, and toxicity to rice stem borers (Lepidoptera: Pyralidae)
Download1998
Cohen, M. B., Aguda, R. M., Bottrell, D. G., Gould, F. L., Litsinger, J. A., Theunis, W., Peferoen, M., Cruz, W. T., Decock, C., Lambert, B.
Abstract: Bacillus thuringiensis Berliner isolates were detected in 57% of 801 samples of rice grain dust, soil, rice field arthropods, and miscellaneous habitats (rice straw compost and mammal faeces) collected at 100 sites in the Philippines. The collection yielded 3950 isolates of B....
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Do rice hybrids have heterosis for insect resistance? A study with Nilaparvata lugens (Hemiptera: Delphacidae) and Marasmia patnalis (Lepidoptera: Pyralidae)
Download2003
Virmani, S. S., Bernal, C. C., Cohen, M. B.
Abstract: Antibiosis-based resistance to two insect pests of rice, Nilaparvata lugens (Stal) (Hemiptera: Delphacidae) and Marasmia patnalis Bradley (Lepidoptera: Pyralidae), was compared in 11 F-1 hybrids and their parental lines. Our objective was to determine whether hybrids show heterosis...
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Effect of Plant Age, Larval Age, and Fertilizer Treatment on Resistance of a cry1Ab-Transformed Aromatic Rice to Lepidopterous Stem Borers and Foliage Feeders
Download2000
Rubia, L., Ghareyazie, B., Alinia, F., Bennett, J., Cohen, M. B.
Abstract: The resistance of vegetative, booting, and flowering stage plants of a variety of an aromatic rice, Oryza sativa L., transformed with a Bacillus thuringiensis Berliner cry1Ab gene under control of the maize phosphoenolpyruvate carboxylase (PEPC) promoter was evaluated against four...
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Frequency of alleles conferring resistance to a Bacillus thuringiensis toxin in a Philippine population of Scirpophaga incertulas (Lepidoptera: Pyralidae)
Download2000
Cohen, M. B., Andow, D. A., Romena, A. M., Gould, F., Bentur, J. S.
Abstract: Using the F-2 screen methodology, we estimated the frequency of alleles conferring resistance to the CrylAb toxin of Bacillus thuringiensis Berliner in a Philippine population of the stem borer Scirpophaga incertulas (Walker). Evaluation of >450 isofemale lines for survival of F-2...
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Heritability of tolerance to the Cry1Ab toxin of Bacillus thuringiensis in Chilo suppressalis (Lepidoptera: Crambidae)
Download2000
Cohen, M. B., Gould, F., Alinia, F.
Abstract: Heritability of Chilo suppressalis (Walker) tolerance to the Cry1Ab toxin of Bacillus thuringiensis Berliner was estimated using a half-sibling design. Artificial diet with and without Cry1Ab was infested with progenies of 20 males, each mated with 2 females, and mortality was scored 5...
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Intrinsic rate of increase and temperature coefficients of the aphid parasite Ephedrus californicus baker (Hymenoptera: Aphidiidae)
Download1987
The demographic statistics and the temperature requirements for development of Ephedrus californicus Baker were determined under constant laboratory conditions. At 23°C, females provided each day with forty 2nd-instar pea aphids, Acyrthosiphon pisum (Harris), lived for 13.4 days and laid 1193...
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Variation in Performance on cry1Ab-Transformed and Nontransgenic Rice Varieties Among Populations of Scirpophaga incertulas (Lepidoptera: Pyralidae) from Luzon Island, Philippines
Download2000
Gould, F., Bentur, J. S., Cohen, M. B.
Abstract: We quantified variation in performance under greenhouse conditions among seven populations of Scirpophaga incertulas (Walker) from Luzon Island, Philippines, on three rice varieties: 'IR58' transformed with the cry1Ab gene from Bacillus thuringiensis Berliner, and nontransgenic IR58 and...