Open AccessOn the Structure and Molt Controlling Function of the Y‐Organ in the Prawn Penaeus indicus
Author(s) -
Vijayan K.,
Mohamed Sunilkumar,
Diwan Arvind D.
Publication year - 1993
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/j.1749-7345.1993.tb00582.x
Subject(s) - prawn , biology , penaeus , anatomy , muda , decapoda , moulting , crustacean , microbiology and biotechnology , zoology , medicine , fishery , ecology , shrimp , larva
The morphological and histological structure of the Y‐organ of Penaeus indicus is described. The gland 1–2 × 0.3 mm (LXW) is located in between the mandibular and posterior dorsoventral muscle at the junction of prebranchial and branchial chambers. Histochemical tests were performed to determine the chemical nature of the Y‐organ cells. Significant changes in the size and tinctorial affinity of the Y‐organ cells were observed in relation to the molt cycle. Y‐organectomy experiments revealed that the onset of premolt development was inhibited, suggesting the presence of molt inducing factor in the Y‐organ.