Title: Endocrine regulation of vitellogenesis in lobsters
Abstract: Endocrine control of reproduction in lobsters is reviewed. As in other malacostracans, female reproduction in lobsters is under a bi-hormonal regulatory system consisting of an inhibitory neuropeptide originating from the X-organ sinus gland complex resident in the eyestalk, and a variety of stimulatory hormonal factors of diverse chemical nature. Interestingly, in Homarus americanus, crustacean hyperglycemic hormones also play a part in stimulating vitellogenesis. While methyl farnesoate, a sesquiterpenoid secreted by mandibular organs as well as the molting hormone ecdysteroids have been implicated with a positive control of vitellogenesis, our recent investigations have uncovered a role of vertebrate steroids such as estradiol 17β and progesterone in the control of vitellogenesis and post vitellogenic meiotic maturation in the spiny lobster Panulirus homarus. In addition, biogenic amines such as 5hydroxytryptamine stimulate the release of gonad stimulating neuropeptides from brain and thoracic ganglia of P. homaraus.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 10
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