Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Theodore L. Hopkins"'
Autor:
Karl J. Kramer, Richard J. Suderman, Theodore L. Hopkins, Svend Olav Andersen, Michael R. Kanost
Publikováno v:
Insect Biochemistry and Molecular Biology. 33:331-343
Three proteins, MsCP20, MsCP27 and MsCP36, that are secreted in greatest quantity into the pharate pupal cuticle of Manduca sexta (Hopkins et al., 2000) were purified and their amino acid sequences determined by mass spectrometry and Edman degradatio
Autor:
Theodore L. Hopkins, James L. Kerwin, Rongda Xu, Haobo Jiang, Yu Cheng Zhu, František Tureček, Karl J. Kramer, Michael R. Kanost
Publikováno v:
Tetrahedron. 57:385-392
Cuticle sclerotization or tanning is a vital process that occurs during each stage of insect development to harden and stabilize the newly secreted exoskeleton. The structural polymers protein and chitin make up the bulk of the cuticle, and chemical
Autor:
Theodore L. Hopkins, Marc S. Harper
Publikováno v:
Archives of Insect Biochemistry and Physiology. 47:100-109
Peritrophic membrane (PM) structure and the effects of dietary wheat germ agglutinin (WGA) on PM formation were studied in larvae of the European corn borer (ECB), Ostrinia nubilalis, and the tobacco hornworm (THW), Manduca sexta. Growth of ECB was s
Publikováno v:
Entomologia Experimentalis et Applicata. 91:317-326
Effects of crowding, food deprivation, and type of cereal diet upon flight initiation, development, body weight, lipid content, and fatty acid composition of the lesser grain borer, Rhyzopertha dominica (F.), were studied in two field strains and one
Autor:
Matthew E. Merritt, Sharon Starkey, Rongda Xu, Karl J. Kramer, Theodore L. Hopkins, Jacob Schaefer
Publikováno v:
Archives of Insect Biochemistry and Physiology. 40:119-128
N-Acetyldopamine (NADA) is the major catechol in the hemolymph of nymphal and adult grasshoppers, Melanoplus sanguinipes (F.), and mainly occurs as an acid-labile conjugate indicated to be a sulfate ester. Its concentration increases in last instar n
Publikováno v:
Tissue and Cell. 30:166-176
European corn borer (ECB; Ostrinia nubilalis (Hubner)) larvae (third instar) fed 0.05% w/w wheat germ agglutinin (WGA) in their diet for 72 h showed very little increase in body weight, whereas weight of control larvae increased nearly fourfold. Ligh
Publikováno v:
Archives of Insect Biochemistry and Physiology. 38:193-201
Autor:
Theodore L. Hopkins, Matthew E. Merritt, Karl J. Kramer, Jacob Schaefer, Allyson M. Christensen
Publikováno v:
Journal of the American Chemical Society. 118:11278-11282
Solid-state NMR has been used to detect an intercatechol covalent bond in sclerotized cuticle of the tobacco hornworm (Manduca sexta). Rotational-echo, double-resonance (REDOR) 13 C and 15 N NMR, in combination with 1 H- 13 C dipolar modulation and 1
Publikováno v:
Entomologia Experimentalis et Applicata. 80:539-549
Prereproductive adults of the grasshopper, Melanoplus sanguinipes (F.) (Orthoptera, Acrididae), demonstrated orientation and movement towards both visual and olfactory stimulus sources in a still-air chamber. Visual stimuli (wheat and lima bean folia
Publikováno v:
Insect Biochemistry and Molecular Biology. 26:585-592
N - β -Alanyldopamine (NBAD) metabolism was investigated in wild-type and melanic mutant niger strains of the Mediterranean fruit fly, Ceratitis capitata , during the process of pupariation. When radioactive β-alanine (BALA) was injected at the ons