Bedoukian   RussellIPM   RussellIPM   Piezoelectric Micro-Sprayer


Home
Animal Taxa
Plant Taxa
Semiochemicals
Floral Compounds
Semiochemical Detail
Semiochemicals & Taxa
Synthesis
Control
Invasive spp.
References

Abstract

Guide

Alphascents
Pherobio
InsectScience
E-Econex
Counterpart-Semiochemicals
Print
Email to a Friend
Kindly Donate for The Pherobase

« Previous AbstractTrade-offs limiting the evolution of coloniality: ecological displacement rates used to measure small costs    Next Abstract"Olive fruit fly (Diptera: Tephritidae) populations in relation to region, trap type, season, and availability of fruit" »

Acta Biol Hung


Title:"Ultrastructural studies on the pheromone-producing cells in the silkmoth, Bombyx mori: formation of cytoplasmic lipid droplets before adult eclosion"
Author(s):Yokoyama N; Fonagy A; Tatsuki S; Arie T; Yamashita S; Matsumoto S;
Address:"Laboratory of Molecular Entomology and Baculovirology, The Institute of Physical and Chemical Research (RIKEN), Hirosawa 2-1, Wako-shi, Saitama 351-0198, Japan"
Journal Title:Acta Biol Hung
Year:2003
Volume:54
Issue:3-Apr
Page Number:299 - 311
DOI: 10.1556/ABiol.54.2003.3-4.8
ISSN/ISBN:0236-5383 (Print) 0236-5383 (Linking)
Abstract:"In Bombyx mori, pheromone-producing cells accumulate a number of lipid droplets in the cytoplasm preceding the production of the sex pheromone, bombykol. The process of lipid droplet formation in the pheromone-producing cells was investigated by using light and electron microscopy. Light microscopy revealed that the lipid droplets appeared from 2 days before adult eclosion and dramatic accumulation took place between 2 days and 1 day before eclosion. Electron microscopical studies revealed that smooth endoplasmic reticulum and numerous vesicles, their sizes being less than 1 microm, were detectable 2 days before eclosion, and some vesicles were fused with mitochondria at this stage. These characteristic changes in the pheromone-producing cells suggest that fatty acyl-CoA synthesis following de novo fatty acid synthesis takes place at this time. Involutions in the basal plasma membrane of the cells occurred throughout the observed period, which were extensive on the day before adult eclosion. Besides extensive basal involutions, immature lipid droplets appeared and then mature fully electron-dense lipid droplets were observed on the day of adult eclosion. These ultrastructural observations, combined with recent physiological studies suggest, that the basal involutions presumably reflect the uptake of lipidic components required for the construction of lipid droplets, the function of which is to store the bombykol precursor and to provide it for bombykol biosynthesis in response to pheromonotropic stimuli by pheromone biosynthesis activating neuropeptide (PBAN)"
Keywords:Animals Bombyx/*anatomy & histology/metabolism Epithelial Cells/chemistry/metabolism/*ultrastructure Fatty Alcohols/chemistry/metabolism Inclusion Bodies/chemistry/metabolism/*ultrastructure Insect Proteins/chemistry/metabolism Lipid Metabolism Lipids/*ch;
Notes:"MedlineYokoyama, N Fonagy, Adrien Tatsuki, S Arie, T Yamashita, S Matsumoto, S eng Research Support, Non-U.S. Gov't Hungary 2004/01/09 Acta Biol Hung. 2003; 54(3-4):299-311. doi: 10.1556/ABiol.54.2003.3-4.8"

 
Back to top
 
Citation: El-Sayed AM 2024. The Pherobase: Database of Pheromones and Semiochemicals. <http://www.pherobase.com>.
© 2003-2024 The Pherobase - Extensive Database of Pheromones and Semiochemicals. Ashraf M. El-Sayed.
Page created on 29-12-2024