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Hormones in the red swamp crayfish

1996; Elsevier BV; Linguagem: Inglês

10.1016/s1572-5995(96)80016-0

2542-6621

Akikazu Yasuda, Yoko Naya,

Cephalopods and Marine Biology

This chapter reviews the unique hormone structures in the red swamp crayfish. Several aspects of molting hormones and the possible biosynthetic significance involved in the molting process are described in the chapter. The chemical and molecular information for crustacean endocrinology is presented and the role of ecdysteroids as molting hormone is substantiated from several approaches. The identification of two ecdysteroids that can lead to molting in the crayfish opened up new lines for physiological research on hormonal regulation during its development. Some eyestalk hormones are discussed in term of the inhibitor of its physiological processes. Investigations on eyestalk hormones have yet provided confusion to study the mechanism of action of each hormone, but have pointed to important areas of crustacean physiology related to the hormones. The traditional name for crustacean hormones, molt-inhibiting hormone, gonad-inhibiting hormone, and mandibular organ-inhibiting hormone, as well as hyperglycemic hormone seems to be loose in the information, as it conveys many effects.