|
Titre :
|
Involvement of Juvenile Hormone and Ubiquitin-Dependent Proteolysis in Flight Muscle Breakdown of Alate Aphid (Acyrthosiphon Pisum)
|
|
Auteurs :
|
M. Kobayashi ;
H. Ishikawa
|
|
Type de document :
|
article/chapitre/communication
|
|
Année de publication :
|
1994
|
|
Format :
|
107-111
|
|
Langues:
|
= Anglais
|
|
Mots-clés:
|
Indirect Flight Muscles
;
Programmed Cell Death
;
Juvenile Hormone
;
Ubiquitin
;
Muscle
;
Anatomie
;
Endocrinologie
;
Morphe ailee
;
Comportement de vol
;
Acyrthosiphon pisum
;
Aphididae
|
|
Résumé :
|
1. Immunoblotting of proteins from indirect flight muscles of an alate aphid suggested that their breakdown subsequent to flight and feeding consists of ubiquitin-dependent proteolysis.2. While starvation of alatae prevented their flight muscles from breakdown, treatment of starved alatae with a juvenile hormone analog induced the muscle breakdown and this was accompanied by accumulation of ubiquitin-conjugated proteins.3. Treatment of alatae with a corpus allatum inhibitor, Precocene 2, prevented the flight muscle breakdown, inactivated their feeding behavior and drove them to superfluous flight.4. These results suggest that breakdown of the indirect flight muscles of alate aphid consists of the ubiquitin-dependent, programmed cell death that is probably triggered by a rise of the juvenile hormone titer in the insect.
|
|
Source :
|
Journal of Insect Physiology, vol. 40, n° 2
|
