Results 321 to 330 of about 1,479,149 (388)

Regulation of juvenile hormone esterase gene transcription by juvenile hormone

Developmental Genetics, 1994
AbstractJuvenile hormone (JH) is a major hormone regulating insect development. We have obtained a cDNA and a genomic clone for juvenile hormone esterase (JHE), the enzyme that is involved in the degradation of juvenile hormone and which is critical for insect development. Analysis of the regulation of JHE during the final larval stadium in the cabbage
V, Venkataraman, P J, O'Mahony, M, Manzcak, G, Jones   +3 more
openaire   +2 more sources

Juvenil- and Steroid-Hormone

2013
Mevalonsaure ist der Vorlaufer, aus denen in allen Tierarten Squalen und Cholesterin oder davon abgewandte Strukturen gebildet werden. Das sind einerseits bei den Wirbeltieren die Steroidhormone und Vitamin D3, bei Nichtwirbeltieren und auch Pflanzen Cholesterolderivate, und bei Ecdysocoa noch das Juvenilhormon, dessen Bildung nicht uber Squalen ...
Bernhard Kleine, Winfried G. Rossmanith
openaire   +1 more source

Juvenile hormone esterase is a biochemical anti-juvenile hormone agent

Insect Biochemistry, 1990
Juvenile hormone esterase, purified by affinity chromatography from the larval hemolymph of Manduca sexta in the fifth stadium, was injected into larvae of the same species in the earlier stadia resulting in a blackening of the cuticle following ecdysis to the next larval stadium.
Matthew L. Philpott, Bruce D. Hammock
openaire   +1 more source

Peptides with Juvenile Hormone Activity

Science, 1970
Peptide derivatives of juvenile hormone analogs which show substantial hormonal activity for certain insects were prepared. The most active compound, L-isoleucyl-L-alanyl- p -aminobenzoic acid ethyl ester, was up to twice as active as juvabione.
M, Zaoral, K, Sláma
openaire   +2 more sources

Hydroxy Juvenile Hormones: New Putative Juvenile Hormones Biosynthesized by Locust Corpora Allatain Vitro

Biochemical and Biophysical Research Communications, 1997
The in vitro production of sesquiterpenoids was investigated by using corpora allata (CA) of the African locust Locusta migratoria migratorioides. Labeled products from unstimulated biosynthesis were extracted, purified by normal phase HPLC, and derivatized to determine the functional groups present.
Darrouzet, Éric, Mauchamp, Bernard, Prestwich, Glenn, Kerhoas, Lucien, Ujváry, István, Couillaud, Franck   +5 more
openaire   +4 more sources

A decade with the juvenile hormone receptor

Advances in Insect Physiology, 2021
M. Jindra, Š. Tumová, Matěj Miláček, L. Bittova   +3 more
semanticscholar   +1 more source

Juvenile hormone production, juvenile hormone esterase, and juvenile hormone acid methyltransferase in corpora allata of Manduca sexta

Journal of Experimental Zoology, 1984
AbstractJuvenile hormone (JH) secretion by corpora allata (CA) of last instar larvae of Manduca sexta was studied by measuring the rate of JH synthesis in vitro with a radiochemical assay and by analyzing JH esterase and JH acid methyltransferase (JHAMT) activities in CA.
Steven P. Sparagana, Govindan Bhaskaran, Karl H. Dahm, Vicki Riddle   +3 more
openaire   +1 more source

Radioimmunoassay: Juvenile Hormones

1988
One of the major technological advances in analytical biochemistry during the past three decades has been the development of the radioimmunoassay (RIA). This relatively simple combination of binding and immunological techniques, in conjunction with the use of high-specific-activity radiotracers, has revolutionized the field of endocrine physiology ...
Noelle A. Granger, Walter G. Goodman
openaire   +1 more source

Juvenile hormone III biosynthesis

Insect Biochemistry, 1984
Abstract De novo biosynthesis of the sesquiterpenoid juvenile hormone III (JH- III , C 16 JH, methyl-10,11-epoxy-3,7,11-trimethyl -2E,6E- dodecadienoate ) by isolated corpora allata of the adult female cockroach Diploptera punctata has been studied in vitro using a radiochemical assay.
René Feyereisen, Richard P. Ruegg, Stephen S. Tobe   +2 more
openaire   +1 more source

Hormones from Mevalonate: Juvenile Hormone and Steroid Hormones

2016
With mevalonic acid as the common origin in vertebrates and invertebrates, a variety of hormones is synthesized from isoprenyl oligomers, squalene and cholesterol. Most relevant for vertebrates are steroid hormones based on the polycyclic sterane frame.
Bernhard Kleine, Winfried G. Rossmanith
openaire   +1 more source