Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Thomas C. Jegla"'
Autor:
Shanon M. Connolly, Eugene Spaziani, Christopher M. Sarno, Rex Montgomery, Matt J. Dewall, Thomas C. Jegla, Jeffrey A. Booth, Danice K. Stone, Wenan L. Wang, Corey C. Conrad
Publikováno v:
American Zoologist. 41:418-429
SYNOPSIS. The Y-organs of crustaceans secrete ecdysteroids (molting hormones) and are regulated (negatively) by a neurosecretory peptide, molt-inhibiting hormone (MIH). Signaling path(s) in Y-organs were explored that connect MIH receptors ultimately
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4439d789ab946949e7cb849285be28e4
https://doi.org/10.1668/0003-1569(2001)041[0418:fsospf]2.0.co
https://doi.org/10.1668/0003-1569(2001)041[0418:fsospf]2.0.co
Autor:
Eugene Spaziani, Thomas C. Jegla, Wenan L. Wang, Jeffrey A. Booth, Shanon M. Connolly, Corey C. Conrad, Matt J. Dewall, Christopher M. Sarno, Danice K. Stone, Rex Montgomery
Publikováno v:
American Zoologist. 41:418-429
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2dccaad03c70d8ebf7576df5f0706c22
https://doi.org/10.1093/icb/41.3.418
https://doi.org/10.1093/icb/41.3.418
Autor:
John D. Costlow, Thomas C. Jegla
Publikováno v:
The Biological Bulletin. 156:103-114
This paper presents a description of the Limulus larval bioassay for ecdysteroid compounds. The Limulus assay is routinely more sensitive than the traditional insect tests and can detect 20-hydroxyecdysone in the low picogram range when test larvae a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b7dc7f941bb85126c8ec84f91d6a334
https://doi.org/10.2307/1541006
https://doi.org/10.2307/1541006
Publikováno v:
Journal of Comparative Physiology ? B. 152:91-95
The production of ecdysteroids (monitored by RIA) by Y-organs and cephalic glands in vitro was measured and hemolymph ecdysteroid levels were determined in the crayfish,Orconectes limosus, both after eyestalk ablation and as a function of time during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eab5493373ed19a0e2407009199829d2
https://doi.org/10.1007/bf00689732
https://doi.org/10.1007/bf00689732
Autor:
Thomas C. Jegla, Thomas L. Poulson
Publikováno v:
Comparative Biochemistry and Physiology. 33:347-355
1. 1. The cave crayfish, Orconectes pellucidus inermis , has a circanian rhythm since (a) under constant laboratory conditions the twelve animals that lived more than a year continued to show cycles of molt and reproduction and (b) the periodicity of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75bf32e29c4cabf85578f1b77263e139
https://doi.org/10.1016/0010-406x(70)90355-5
https://doi.org/10.1016/0010-406x(70)90355-5
Autor:
Thomas C. Jegla
Publikováno v:
The Biological Bulletin. 130:345-358
1. Annual periods of reproduction and molting of Orconectes pellucidus inermis in Shiloh Cave, Indiana, have been observed. Both sexes of O. p. inermis in Shiloh Cave appear to initiate a new annual period of gametogenesis in early summer. The number
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3ec440402c0019f764aed1c750b541f
https://doi.org/10.2307/1539741
https://doi.org/10.2307/1539741
Autor:
Thomas C. Jegla, John S. Hall
Publikováno v:
Journal of Mammalogy. 43:477-481
Remains of the free-tailed bat, Tadarida brasiliensis , were recovered from a guano pile in Mammoth Cave, Kentucky. This guano has been radiocarbon dated at more than 38,000 years. This species does not live in Kentucky at the present time. The fossi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea18f3c7ac66887e5605a6ea337ac269
https://doi.org/10.2307/1376910
https://doi.org/10.2307/1376910
Autor:
Thomas L. Poulson, Thomas C. Jegla
Publikováno v:
Journal of Experimental Zoology. 168:273-282
Evidence of a circadiam clock mechanism was found in the cave crayfish, Orconectes pellucidus, even though it is blind and has been isolated from daily cycles for at least 25,000 generations. Five of seven crayfish tested under cave conditions of con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ac67cf624abef892f7fa76eb37b7925
https://doi.org/10.1002/jez.1401680213
https://doi.org/10.1002/jez.1401680213
Publikováno v:
General and comparative endocrinology. 19(1)
The two insect molting hormones, α- and β-ecdysone, and two synthetic ecdysone analogs are highly effective in stimulating molting in horseshoe crab (Limulus) larvae. Effectiveness of the ecdysones is dependent on time during the intermolt cycle. L
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::350ac7378a48da9e4efe34e4a6510e20
https://pubmed.ncbi.nlm.nih.gov/5047340
https://pubmed.ncbi.nlm.nih.gov/5047340
Autor:
John D. Costlow, Thomas C. Jegla
Publikováno v:
General and comparative endocrinology. 14(2)
Molting in stage 1 horseshoe crab larvae, Limulus polyphemus, can be induced by polyhydroxy steroids that stimulate molting in insects. The effect of the injected steroids in shortening the intermolt period is dependent on dose and time of injection
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc4b47f7cda2f5dfd77fc9dcd41cb040
https://pubmed.ncbi.nlm.nih.gov/5438604
https://pubmed.ncbi.nlm.nih.gov/5438604