Document Detail


Bilateral eyestalk ablation of the blue swimmer crab, Portunus pelagicus, produces hypertrophy of the androgenic gland and an increase of cells producing insulin-like androgenic gland hormone.
MedLine Citation:
PMID:  20817240     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The androgenic glands (AG) of male decapod crustaceans produce insulin-like androgenic gland (IAG) hormone that controls male sex differentiation, growth and behavior. Functions of the AG are inhibited by gonad-inhibiting hormone originating from X-organ-sinus gland complex in the eyestalk. The AG, and its interaction with the eyestalk, had not been studied in the blue swimmer crab, Portunus pelagicus, so we investigated the AG structure, and then changes of the AG and IAG-producing cells following eyestalk ablation. The AG of P. pelagicus is a small endrocrine organ ensheathed in a connective tissue and attached to the distal part of spermatic duct and ejaculatory bulb. The gland is composed of several lobules, each containing two major cell types. Type I cells are located near the periphery of each lobule, and distinguished as small globular cells of 5-7 μm in diameter, with nuclei containing mostly heterochromatin. Type II cells are 13-15 μm in diameter, with nuclei containing mostly euchromatin and prominent nucleoli. Both cell types were immunoreactive with anti-IAG. Following bilateral eyestalk ablation, the AG underwent hypertrophy, and at day 8 had increased approximately 3-fold in size. The percentage of type I cells had increased more than twice compared with controls, while type II cells showed a corresponding decrease.
Authors:
Morakot Sroyraya; Charoonroj Chotwiwatthanakun; Michael J Stewart; Nantawan Soonklang; Napamanee Kornthong; Ittipon Phoungpetchara; Peter J Hanna; Prasert Sobhon
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Tissue & cell     Volume:  42     ISSN:  1532-3072     ISO Abbreviation:  Tissue Cell     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-09-27     Completed Date:  2011-01-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0214745     Medline TA:  Tissue Cell     Country:  Scotland    
Other Details:
Languages:  eng     Pagination:  293-300     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Anatomy, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok 10400, Thailand.
Data Bank Information
Bank Name/Acc. No.:
GENBANK/HM459854
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MeSH Terms
Descriptor/Qualifier:
Amino Acid Sequence
Androgens / metabolism
Animals
Brachyura
Endocrine Glands / cytology,  pathology*
Eye
Gonadal Hormones / biosynthesis*,  immunology
Gonads / cytology,  pathology
Hypertrophy
Male
Molecular Sequence Data
Sequence Alignment
Sex Differentiation
Chemical
Reg. No./Substance:
0/Androgens; 0/Gonadal Hormones

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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