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On the reduced sensitivity of the adult male lobster (Homarus americanus) to ecdysterone at reduced temperatures

Autor: M.W Gilgan, B.G Burns

Publikováno v: Comparative Biochemistry and Physiology Part A: Physiology. 58:33-36

1. 1. Adult, male lobsters held at ambient sea temperature (2–6°C) did not respond to doses of up to 3.0 μg ecdysterone/g live weight, while animals from the same group held at 15°C were all forced into accelerated premolt by 2.0 μg ecdysterone

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a4cf064b243dd94d896e1777d5628f2
https://doi.org/10.1016/0300-9629(77)90009-3

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Ecdysterone triacetate-induced molting in the American lobster (Homarus americanus)

Autor: B.G Burns, M.W Gilgan

Publikováno v: Comparative Biochemistry and Physiology Part A: Physiology. 64:125-131

1. 1. Ecdysterone-2,3,22-triacetate (EAc 3 ), the principal component of the crude ecdysterone acetate (EAc) preparations which successfully induced molting in the lobster, was responsible for the bulk of the activity of the mixture. 2. 2. EAc 3 trea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e0c3298b79963bc089fb453d5448afd5
https://doi.org/10.1016/0300-9629(79)90440-7

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The effect of α-ecdysone, ecdysterone and inokosterone treatment, separately or in combinations, on premolt development and molting in adult male lobsters (Homarus americanus)

Autor: B.G Burns, T.E Farquharson, M.W. Gilgan

Publikováno v: Comparative Biochemistry and Physiology Part A: Physiology. 56:43-49

1. 1. Inokosterone treatment induced accelerated premolt development in adult, male lobsters much like ecdysterone did but was approximately half as effective on a weight basis. 2. 2. Inokosterone did not induce successful molts in “summer” lobst

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::14ee71189fe42eefe985d54a00b1e81a
https://doi.org/10.1016/0300-9629(77)90440-6

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Isolation and identification of testosterone from the serum and testes of the American lobster (Homarus americanus)

Autor: G.B. Sangalang, H.C. Freeman, M. McMenemy, B.G. Burns

Publikováno v: General and comparative endocrinology. 54(3)

Testosterone was isolated and quantified from male lobster serum and testes by solvent extraction, sequential thin-layer chromatography, and high-performance liquid chromatography. The identity of the isolated steroid was established by its isopolari

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a88d02e0125018f0362abf1fd546061a
https://pubmed.ncbi.nlm.nih.gov/6735160

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Bioconversion of steroids by the testes of the American lobster, Homarus americanus, in vitro

Autor: H.C. Freeman, M. McMenemy, B.G. Burns, G.B. Sangalang

Publikováno v: General and comparative endocrinology. 54(3)

Lobster testes have been demonstrated to contain steroid 20-ketone reductase by their capacity to convert [14C]progesterone to 20 alpha-dihydroprogesterone (20 alpha-DHP). The major product was isopolar and identical with 20 alpha-DHP during thin-lay

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42beb52ad671db8d86353c2c4d1e5258
https://pubmed.ncbi.nlm.nih.gov/6735159

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Estimation of a steroid released from the crude saponins of the starfish, Asterias vulgaris, by solvolysis: seasonal and geographic abundance

Autor: J. Burnell, B.G. Burns, M.W. Gilgan, V.H. Logan, John W. ApSimon

Publikováno v: Analytical biochemistry. 81(1)

Conditions were optimized for the quantitative extraction and isolation, by reversed-phase adsorption, of a saponin, from the common or purple starfish, Asterias vulgaris, and for the subsequent solvolytic release and quantitation of a steroid aglyco

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f788486072e73206e25f3a3252905fb5
https://pubmed.ncbi.nlm.nih.gov/900478

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The successful induction of molting in the adult male lobster (Homarus americanus) with a slow-release form of ecdysterone

Autor: B.G. Burns, M.W. Gilgan

Publikováno v: Steroids. 27(5)

In an initial, and then a confirmatory experiment, adult, male lobsters were injected with solvent, ecdysterone (E, 2.0 mug/g live weight) or ecdysterone acetate (EAc, 2.5 or 5.0 mug/g live weight) emulsions in Freund's incomplete adjuvant (FIA). Con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::398e6cd698ce055d4b1ba74b657daefb
https://pubmed.ncbi.nlm.nih.gov/941177

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