Results 181 to 190 of about 21,062 (233)

Invertebrate neuropeptide hormones

International Journal of Peptide and Protein Research, 1983
The development of a long‐term research program on the neurosecretory hormones of arthropods is described. The purification and full characterization of the first invertebrate neurohormones, the red pigment‐concentrating hormone (RPCH) and the distal retinal pigment hormone (DRPH) demonstrated that they are peptides, an octapeptide and an ...
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Radioimmunoassay of an invertebrate peptide hormone — the crustacean neurosecretory hyperglycemic hormone

Experientia, 1979
Antibodies against hyperglycemic hormone (CHH) of Carcinus were raised in rabbits by injection of extract from sinus glands which contain high concentrations of CHH. The antiserum neutralizes the biological activity of CHH and binds 125-J-CHH. A RIA for CHH was established and was used to measure the hormone content of sinus glands.
P P, Jaros, R, Keller
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Hormonal control of invertebrate behavior

Hormones and Behavior, 1978
Abstract Invertebrates show a wide variety of behaviors that are influenced by hormones. In insects the involvement of hormones at a particular life stage is directly correlated with the complexity of the behavioral repertoire at that stage. In larval stages, the steroid hormone, ecdysone, when present with juvenile hormone, apparently causes the ...
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Hormones in Plants and Invertebrates

Nature, 1952
The Action of Hormones in Plants and Invertebrates Edited by Kenneth V. Thimann. (Reprinted, with additions and supplementary bibliographies, from ‘The Hormones’, Vol. 1.) Pp. viii + 228. (New York: Academic Press, Inc., 1952.) 5.80 dollars.
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Hormonal Influences on Invertebrate Aggressive Behavior

1983
Aggressive behavior has been described in nearly all of the invertebrate groups. In many cases the presence or absence of aggression, or the intensity of aggressive expression, is known to vary with time or with changing environmental conditions; such variation is suggestive of hormonal influences, but direct hormonal control of aggression has been ...
Michael D. Breed, William J. Bell
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Invertebrate Hormones and Tumors

1974
Hereditary, melanotic tumors in Drosophila have attracted the attention of research workers since the report of Bridges (1916) that a gene, 1(1)7, causes melanotic tumors associated with the presence of clusters of larval cells that become pigmented. Stark (1935) viewed these tumors as possibly analogous to lymphosarcoma in vertebrates.
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Vertebrate Protein and Peptide Hormones

2016
When analyzing invertebrates in the 1930s and 1940s, Berta and Hans Schaller developed the idea of neurosecretion using the large oceanic snail A. californica (Califonia sea hare) with its few and relatively large neurons. Neuropeptides have been found in all metazoans. Where whole genome sequences are available such as in bees A.
Bernhard Kleine, Winfried G. Rossmanith
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Gonadotropin-releasing hormone in invertebrates: Structure, function, and evolution

General and Comparative Endocrinology, 2006
Gonadotropin-releasing hormone (GnRH) is central to the initiation and maintenance of reproduction in vertebrates. GnRH is found in all major groups of Phylum Chordata, including the protochordates. Studies on functional and structural evolution of GnRH have, in the past, focused exclusively on chordates.
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The Complex of Steroid Hormones in Invertebrate Hydrobionts

Biologiâ vnutrennih vod
The presence of a complex of biologically active steroid compounds (BASC) – hydrocortisone, corticosterone, progesterone, testosterone and estrogens (vertebrate hormones) in invertebrate hydrobionts of different phylogenetic levels was revealed in the experiments.
S. M. Nikitina, J. J. Polunina
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Invertebrate Systems for the Study of Hormonal Effects on Behavior

1978
Publisher Summary This chapter discusses invertebrate systems for the study of hormonal effects on behavior. It has long been known that hormones can have profound effects on behavior. The most familiar examples of these effects are the changes that occur in many vertebrates during their breeding seasons.
J W, Truman, L M, Riddiford
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