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2.1.6 Mandibular organ
The mandibular organ in the crustaceans is similar to that of an endocrine gland in higher vertebrates. It secretes hormones or hormone like substances, that will have the influence on the reporducitve organs or reproductive process. It has been involved in ovarian growth and vitellogenesis. Mandibular organ synthesizes asubstance called methyl farnesoate (MF) and the same has been reported from lobsters, crayfish and shrimps. MF has been shown to have stimulatory effect on Y-organ to secrete ecdysone. |
Last modified: Saturday, 24 December 2011, 7:39 AM