Über die Isolierung eines Metamorphose-Hormons der Insekten in kristallisierter Form
Open accessAbstract
Aus Seidenspinner-Puppen wurde durch Methanolextraktion und Anreicherung in Bezug auf das im Test am abgeschnürten Abdomen von Calliphora-Larven wirksame Prinzip ein kristallisierter einheitlicher Stoff vom Schmp. 235—237° erhalten, der im Calliphora-Test mit 0,0075 γ wirksam ist. Wie Versuche an Saturniiden-Puppen (C. M. Williams) zeigten, handelt es sich um das Hormon der Prothorakaldrüsen.
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The first ecdysteroid was isolated in 1954 by Butenandt and Karlson from pupae of the silkworm Bombyx mori.
“The first ecdysteroid was isolated in 1954 by Butenandt and Karlson [5] from pupae of the silkworm Bombyx mori using a multi-step process (Figure 2), relying on an insect bioassay to detect moult-inducing activity.”
From Ecdysteroids (2021) · cites this paper as [5]
The first characterized ecdysteroid, ecdysone, was isolated from the silkworm Bombyx mori.
“The first characterized ecdysteroid, ecdysone, was isolated from the silkworm Bombyx mori2.”
From The Phytochemical, Biological, and Medicinal Attributes of Phytoecdysteroids: An Updated Review (2021) · cites this paper as [2]
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Background
- Authors
- Butenandt, A., & Karlson, P.
- Affiliations
- Max Planck Society (DE)
- Venue
- Zeitschrift für Naturforschung B
- Publisher
- Walter de Gruyter GmbH
- Published
- 1954-06-01
- Volume
- 9
- Issue
- 6
- Pages
- 389-391
- ISSN
- 0044-3174 (ISSN-L)
- 1865-7117
- 0932-0776
- OpenAlex
- W2155244827
- Cited by
- 367
- References
- 0
- Citations by year
- 2026: 5 · 2025: 6 · 2024: 6 · 2023: 5 · 2022: 9 · 2021: 7 · 2020: 4 · 2019: 4 · 2018: 2 · 2017: 3 · 2016: 5 · 2015: 3 · 2014: 3 · 2013: 4 · 2012: 4
- FWCI
- 5.77
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Zeitschrift für Naturforschung B (publishedVersion, cc-by-nc-nd)
- Topics
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
- Life Sciences › Agricultural and Biological Sciences › Insect Science › Silkworms and Sericulture Research
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Insect Pest Control Strategies
- Keywords
- insect hormones, silkworm pupae, prothoracic gland, methanol extraction, hormone purification, metamorphosis
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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