Studies on pigment-activating substances in animals I. The separation by paper electrophoresis of chromactivating substances in arthropods

Autor:	David B. Carlisle, Marie Dupont-Raabe, Francis G. W. Knowles
Rok vydání:	1955
Předmět:	media_common.quotation_subject fungi Normal colour Paper electrophoresis Insect Aquatic Science Biology biology.organism_classification Crustacean Chromatophore Toxicology Pigment Biochemistry visual_art visual_art.visual_art_medium sense organs media_common Hormone
Zdroj:	Journal of the Marine Biological Association of the United Kingdom. 34:611-635
ISSN:	1469-7769 0025-3154
DOI:	10.1017/s0025315400008845
Popis:	It has been established that many substances can bring about a change in position of pigments in crustacean chromatophores (Florey, 1951). The extracts of certain animal tissues (pituitary, crustacean sinus-gland and post-commissure organs, insect brain and corpora cardiaca) are especially active (Brown, 1940; Knowles, 1953; Dupont-Raabe, 1952; Thomsen, 1943); there is evidence that these tissues intervene in the normal colour change of the animals which possess them and that their products may properly be considered as hormones. On the other hand, many species which do not themselves possess chromatophores (oligochaetes, molluscs, and many insects) have nevertheless been shown to contain substances in their tissues which will, after injection into crustaceans, initiate pigment movements (Scharrer, 1954). It has not yet been ascertained whether these pigment-activating substances chemically resemble normal colour-change hormones or whether the pigment movements they produce are pharmacodynamic effects irrelevant in the study of colour physiology.
Databáze:	OpenAIRE
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