Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Karl H. Dahm"'
Publikováno v:
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In the last larval instar of Lepidoptera, ecdysteroid in the absence of juvenile hormone (JH) is believed to cause the shift from larval to pupal development. In Manduca sexta, tissues such as the Verson's gland and crochet epidermis become pupally c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caef0fd489984bd0dc4f61b630e654b0
https://doi.org/10.1016/s0022-1910(99)00102-x
https://doi.org/10.1016/s0022-1910(99)00102-x
Autor:
Sheikh M. Ismail, James Y. Bradfield, Govindan Bhaskaran, Kotamraju Satyanarayana, Karl H. Dahm
Publikováno v:
Archives of Insect Biochemistry and Physiology. 37:305-314
In the tobacco hornworm (Manduca sexta), vitellogenin (Vg), the major yolk protein precursor, and its mRNA are first detectable in the prepupal stage; and production of both can be enhanced by methoprene, a juvenile hormone (JH) analog. Competence to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f30e154dfe8abe2133d0f9a23f12dba
https://doi.org/10.1002/(sici)1520-6327(1998)37:4<305::aid-arch6>3.0.co
https://doi.org/10.1002/(sici)1520-6327(1998)37:4<305::aid-arch6>3.0.co
Publikováno v:
Physiological Entomology. 22:269-276
The role of Juvenile Hormone (JH) during reproductive development and diapause was investigated in the boll weevil, Anthonomus grandis Boheman (Coleoptera: Curculionidae). JH sythesized by corpora allata (CA) in vitro of A.grandis was identified as J
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03ca871712dddcc02fba6b19017fbca6
https://doi.org/10.1111/j.1365-3032.1997.tb01168.x
https://doi.org/10.1111/j.1365-3032.1997.tb01168.x
Publikováno v:
Journal of Insect Physiology. 42:205-213
In Manduca sexta , larval-larval molting of the IVth instar ensues in response to a large pulse of ecdysteroid. Ecdysone release by the prothoracic glands (PG), in turn, is stimulated by prothoracicotropic hormone (PTTH) from the brain. We show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d880411f613e25d23c16717b7df3a34e
https://doi.org/10.1016/0022-1910(95)00095-x
https://doi.org/10.1016/0022-1910(95)00095-x
Publikováno v:
Journal of Insect Physiology. 40:849-858
The stage at which corpora allata (CA) of Manduca sexta regain the capability for juvenile hormone (JH) biosynthesis during adult development was determined by a transplantation assay and in vitro experiments with CA of adults and pharate adult stage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22366089125f030ae662702a2cc8a23d
https://doi.org/10.1016/0022-1910(94)90018-3
https://doi.org/10.1016/0022-1910(94)90018-3
Publikováno v:
Archives of Insect Biochemistry and Physiology. 25:21-37
Denaturing electrophoresis of hemolymph from prepupae of M. sexta showed trace amounts of polypeptides with mobilities corresponding to those of vitellogenin (Vg) apoproteins from adult females. Absence of the polypeptides in allatectomized insects s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a949c184417a8a912a84b2569fedaf02
https://doi.org/10.1002/arch.940250104
https://doi.org/10.1002/arch.940250104
Publikováno v:
Archives of Insect Biochemistry and Physiology. 24:173-185
During the last larval stage, corpora allata (CA) of Manduca sexta are inactivated by a factor from the brain. Apparently the same factor (allatinhibin, Al) is secreted by day 4 Vth instar brains kept overnight in Grace's medium. Al is rapidly inacti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c605bbab20f8fbbe21d6b471a991f687
https://doi.org/10.1002/arch.940240402
https://doi.org/10.1002/arch.940240402
Publikováno v:
Invertebrate Reproduction & Development. 21:169-178
Summary In the corn earworm Helicoverpa zea yolk deposition in oocytes begins 8–10 h after adult eclosion and is controlled by juvenile hormone (JH). Hemolymph from females at the time of yolk formation, analyzed by SDS-PAGE, contains polypeptides
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95d3f6af40c3ad14934198fc360773db
https://doi.org/10.1080/07924259.1992.9672235
https://doi.org/10.1080/07924259.1992.9672235
Publikováno v:
Entomologia Experimentalis et Applicata. 59:135-143
At eclosion, the ovaries of female Corn earworm Heliothis zea do not contain mature eggs. Virgin-unfed females produced approximately 400 mature eggs in 8 days; mating or feeding doubled this number, and mating plus feeding more than tripled it. Fema
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4c8e5e91a16b3f54a798ec25d87d3bb
https://doi.org/10.1111/j.1570-7458.1991.tb01496.x
https://doi.org/10.1111/j.1570-7458.1991.tb01496.x
Publikováno v:
Band 4: Arthropoda, 2 Hälfte: Insecta, Lepidoptera, Moths and Butterflies, Teilband/Part 36, Vol 2: Morphology, Physiology, and Development
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cc0c91f54aeab0fdcff1df26433ba70
https://doi.org/10.1515/9783110893724.389
https://doi.org/10.1515/9783110893724.389
