• Title/Summary/Keyword: entomology

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Developmental Characteristics of Bumblebee, Bombus ignitus by the First Oviposition Day

  • Yoon, Hyung-Joo;Kim, Sam-Eun;Kim, Young-Soo;Lee, Sang beom;Shim, Ha-Sik;Park, In-Gun;Kim, Keun-Young
    • Proceedings of the Korean Society of Sericultural Science Conference
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    • 2003.10a
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    • pp.120-122
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    • 2003

  • It was investigated whether developmental characteristic of foundation queens of Bombus ignitus collected in the 11 localities including Jeongsun have any effects by the first oviposition days. Materials and Methods: materials - insect : foundation queens of Bombus ignitus collected in the 11 localities. Methods - we investigated the rate of colony foundation, progeny-queen production and the number of adults emergence for the relationship between first oviposition day and colony development of B. ignitus (omitted)

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Potential Strategies for Prolonging the Usefulness of Bacillus thuringiensis in Engineered Rice

  • Bottrell, D.G.;Aguda, R.M.;Gould, F.L.;Theunis, W.;Demayo, C.G.;Magalit, V.F.
    • Korean journal of applied entomology
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    • v.31 no.3
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    • pp.247-255
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    • 1992

  • A laboratory bioassay that incorporates Bacillus thuringiensis (Bt) purified crystal protein toxins into an artificial diet has identified three toxins, CryIA(b), CryIA(c), and CryIIA, to by effective against the yellow stemborer, Scirpophaga incertulas(Walker). Research is aimed at engineering rice that incorporates genes of one of or more of these toxins so as to mimic the insecticidal action of the insect to Bt. The paper discusses potential strategies for slowing the rate of adaptation that include the use of multiple Bt toxins, promoters that express the toxins only in specific plant tissues at specific times, and mixing transgenic and non-transgenic plants.

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Molecular Cloning of the cCDNA for $NAD^+$ /-dependent 15-hydroxyprostagladin Dehydrogenase Gene Homologue from the Mole Cricket, Gryllotalpa orientalis

  • Kim, Iksoo;Lee, Young-Sin;Kim, Eun-Sun;Lee, Heui-Sam;Kim, Jin-Won;Ahn, Mi-Young;Ryu, Kang-Sun
    • Proceedings of the Korean Society of Sericultural Science Conference
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    • 2003.04a
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    • pp.67-67
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    • 2003

  • The NAD$^{+}$-dependent 15-hydroxyprostagladin dehydrogenase (15-PGDH) is a key catabolic enzyme responsible for the control of the biological activities of prostagladins. So far the gene has been found in a diverse organism including three insect dipteran species and one lepidopteran species. In this study, a cDNA encoding the 15-PGDH gene homologue was isolated from the cDNA library of the mole cricket, Gryllotalpa orientalis. (omitted)d)

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