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  • Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry  (5)
  • Wiley-Blackwell  (5)
  • American Institute of Physics (AIP)
  • Cambridge University Press
  • 1985-1989  (5)
  • 1989  (5)
Collection
Keywords
Publisher
  • Wiley-Blackwell  (5)
  • American Institute of Physics (AIP)
  • Cambridge University Press
Years
  • 1985-1989  (5)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Alteration of hemolymph polypeptides in Manduca sexta larvae parasitized by Cotesia congregata: A two-dimensional electrophoretic analysis and comparison with major bacteria-induced proteins (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Archives of Insect Biochemistry and Physiology 10 (1989), S. 29-45 
    Details
    ISSN: 0739-4462
    Keywords: parasitism ; tobacco hornworm ; polyacrylamide gel electrophoresis ; hemolymph proteins ; insect defense mechanisms ; Chemistry ; Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: Analyses using one-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) previously demonstrated that parasitization by the braconid wasp Cotesia congregata significantly alters the normal hemolymph polypeptide profile of host Manduca sexta larvae. In the present study two-dimensional gel analyses corroborated our earlier findings and provided additional evidence that multiple parasitism-specific polypeptides were induced, which varied according to the stage of development of the wasps. Parasitization additionally elicited changes in the total protein concentration detected in the blood. Initially an elevation was observed, with newly parasitized larvae exhibiting a twofold elevation in hemolymph protein concentration by 12-24 h postoviposition. In contrast, terminal-stage hosts with second instar parasites had significantly less protein in the hemolymph, likely due to reduced growth and inhibition of arylphorin synthesis by the fat body during the final stages of parasitism. Comparison of the array of hemolymph polypeptides produced in unparasitized larvae injected with 106cells of the gram-negative bacterium Enterobacter cloacae with those proteins induced by parasitization indicated the two classes are different. Our findings confirm that the hostresponse to parasitism is a specific one, and not mimicked by bacterial challenge. Duringshort-term in vitro culture of wasp larvae dissected from the host hemocoel, several proteins were detected in the medium using SDS - PAGE, with their appearance in vitro suggestive of secretion by the wasps in vivo. Moreover, hemolymph from the parasites had significant amounts of putative host proteins, including an arylphorin - like polypeptide and a protein with a mobility similar to that of insecticyanin. Thus, a dynamic interchange of proteins may occur, with the parasites accumulating host proteins while simultaneously secreting a variety of factors into the host hemocoel.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/arch.940100104
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  • 2
    Electronic Resource
    Electronic Resource
    Microplitis croceipes teratocytes cause developmental arrest of Heliothis virescens larvae (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Archives of Insect Biochemistry and Physiology 12 (1989), S. 51-61 
    Details
    ISSN: 0739-4462
    Keywords: tobacco budworm ; Braconidae ; trophoserosa cells ; juvenile hormone esterase ; polydnavirus ; Chemistry ; Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: Microplitis croceipes teratocytes placed into nonparasitized Heliothis virescens larvae survived in the absence of a parasitoid larva and caused developmental changes in the host. Expressions of these changes included delayed larval mortality, incomplete larval-pupal ecdysis, or delayed pupation. Two day old 4th stadium H. virescens larvae were more sensitive to injected teratocytes than were 5th stadium larvae. Three day old teratocytes were more effective than were 6 day old teratocytes. The degree of response was related to the number of injected teratocytes. For example, 750 three day old teratocytes (the approximate number from a single parasitoid egg) caused delayed larval mortality in 96% of the treated larvae whereas 175 three day old teratocytes caused delayed larval mortality in only 33% of the treated larvae. Even a dose of 80 teratocytes resulted in 15% incomplete larval-pupal ecdysis compared to 0% for controls. Treatment with hemocyte-and teratocyte-free hemolymph from parasitized larvae, hemocytes from nonparasitized H. virescens, unfertilized M. croceipes eggs, Cotesia congregata teratocytes, or Micrococcus lysodeikticus cells all had very little effect either on larval growth or development time.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/arch.940120105
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  • 3
    Electronic Resource
    Electronic Resource
    Regional differentiation of fat bodies in larvae of the indianmeal moth, Plodia interpunctella (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Archives of Insect Biochemistry and Physiology 12 (1989), S. 187-199 
    Details
    ISSN: 0739-4462
    Keywords: storage proteins ; lepidopteran ; mitochondria ; metamorphosis ; ultrastructure ; Chemistry ; Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: Larvae of the Indianmeal moth, Plodia interpunctella, contain two morphologically distinct fat bodies. Tan-colored, highly tracheated fat body located posteriorly in the abdomen was the predominant fat body tissue during the early larval instars. White, sheet fat body located more anteriorly became the predominant type during the fifth (last) larval instar and eventually occupied most of the space of the hemocoel. Ultrastructural morphology of tan fat body showed the tissue to be composed of cells containing numerous, large, spherical mitochondria, with only few lipid, glycogen, or protein storage structures. In contrast, white fat body was composed of cells that in later larval stages had organelles typical of storage functions. Both fat bodies produced storage proteins during the late fifth instar, whereas only white fat body accumulated the storage proteins. Tan fat body dispersed and apparently autolyzed in pharate pupae, whereas the white fat body metamorphosed and persisted into the adult stage. These observations indicate that fat body of the Indianmeal moth is functionally and morphologically differentiated along the anterior-posterior axis into two regional subgroups of cells.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/arch.940120306
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  • 4
    Electronic Resource
    Electronic Resource
    Identification of a pheromone blend attractive to Manduca sexta (L.) males in a wind tunnel (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Archives of Insect Biochemistry and Physiology 10 (1989), S. 255-271 
    Details
    ISSN: 0739-4462
    Keywords: insect behavior ; aldehydes ; 10 ; 12 ; 14-hexadecatrienal ; tobacco hornworm ; Sphingidae ; Chemistry ; Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: Analyses of solvent rinses of the external surfaces of pheromone glands excised from calling female tobacco hornworm moths, Manduca sexta (L.), revealed the presence of the following compounds: (Z)-9-hexadecenal, (Z)-11-hexadecenal, (E)-11-hexadecenal, hexadecanal, (E,Z)-10,12-hexadecadienal, (E,E)-10,12-hexadecadienal, (E,E,Z)-10,12,14-hexadecatrienal, (E,E,E,)-10,12,14-hexadecatrienal, (Z)-11-octadecenal, (Z)-13-octadecenal, octadecanal, and (Z,Z)-11,13-octadecadienal. The two trienals were identified by mass and PMR spectral analyses and by ozonolyses, and their structures were confirmed by synthesis. In a wind tunnel male tobacco hornworm moths exhibit the same behaviors in response to a synthetic blend of all of the components, the gland rinse, or a calling female. Both (E,Z)-10,12-hexadecadienal and (E,E,Z)-10,12,14-hexadecatrienal are required to stimulate males to complete the characteristic behavioral sequence: anemotaxis, approaching and touching the pheromone source, and bending their abdomens in apparent copulatory attempts. The other components of the blend may play more subtle roles.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/arch.940100402
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  • 5
    Electronic Resource
    Electronic Resource
    Nonvitellogenic female protein in Musca domestica (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Archives of Insect Biochemistry and Physiology 11 (1989), S. 245-255 
    Details
    ISSN: 0739-4462
    Keywords: housefly ; hemolymph proteins ; vitellogenesis ; Chemistry ; Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: During vitellogenesis in Musca domestica, a major hemolymph protein, in addition to vitellogenin, appears preferentially in females. This protein is synthesized by the adult fat bodies, secreted into the hemolymph, and is not taken up by the ovaries during vitellogenesis. We have designated this protein nonvitellogenic female protein (NVFP). It is composed of only one type of polypeptide (Mr=70,000) and occurs in two different forms. Synthesis of NVFP is induced by a protein diet, attaining maximum concentrations in females at the middle of the gonotrophic cycle. In males its maximum concentration never surpasses 10% of the concentration in females. The quantitative variation of the NVFP is cyclic and coincident with the gonotrophic cycles of Musca domestica.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/arch.940110405
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