נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Effect of a juvenile hormone analogue on the life span, egg laying, and ecdysteroid titer of virgin Ephestia cautella females
Year:
1991
Authors :
Calderon, Moshe
;
.
Pisarev, Vladimir
;
.
Shaaya, Eli
;
.
Volume :
17
Co-Authors:
Shaaya, E., Agricultural Research Organization, Volcani Center, Institute for Technology and Storage of Agricultural Products, Bet Dagan, Israel
Calderon, M., Agricultural Research Organization, Volcani Center, Institute for Technology and Storage of Agricultural Products, Bet Dagan, Israel
Pisarev, V., Agricultural Research Organization, Volcani Center, Institute for Technology and Storage of Agricultural Products, Bet Dagan, Israel
Spindler, K.‐D., Heinrich-Heine-Universitat Düsseldorf, Düsseldorf, Germany
Facilitators :
From page:
183
To page:
188
(
Total pages:
6
)
Abstract:
Mated females of the tropical warehouse moth, Ephestia cautella, start laying eggs shortly after adult emergence. All eggs are laid within 4 days and the adult's total life span is 5 to 6 days. If mating is prevented, egg laying is drastically delayed and the life span is extended to approximately 10 to 11 days. Virgin females lay fewer eggs than mated insects. If the juvenile hormone analogue methoprene is applied topically (100 ng/pupa) 2 to 3 days prior to adult emergence, the number of eggs per virgin female increases and the life span is reduced, as compared with nontreated virgins, and reaches values similar to control (mated) females. Changs in the ecdysteroid titer of females are related to egg laying. The concentrations increase and reach a maximum before most of the eggs are laid. Accordingly, the peak maximum is delayed in virgins as compared with mated females. This delay is prevented after application of methoprene. Mated and virgin females have lower ecdysteroid levels than treated virgins. In contrast to mated females, males have much lower ecdysteroid levels throughout their adult life. Copyright © 1991 Wiley‐Liss, Inc.
Note:
Related Files :
adult development
ecdysteroids
tropical warehouse moth
Show More
Related Content
More details
DOI :
10.1002/arch.940170211
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30875
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:57
Scientific Publication
Effect of a juvenile hormone analogue on the life span, egg laying, and ecdysteroid titer of virgin Ephestia cautella females
17
Shaaya, E., Agricultural Research Organization, Volcani Center, Institute for Technology and Storage of Agricultural Products, Bet Dagan, Israel
Calderon, M., Agricultural Research Organization, Volcani Center, Institute for Technology and Storage of Agricultural Products, Bet Dagan, Israel
Pisarev, V., Agricultural Research Organization, Volcani Center, Institute for Technology and Storage of Agricultural Products, Bet Dagan, Israel
Spindler, K.‐D., Heinrich-Heine-Universitat Düsseldorf, Düsseldorf, Germany
Effect of a juvenile hormone analogue on the life span, egg laying, and ecdysteroid titer of virgin Ephestia cautella females
Mated females of the tropical warehouse moth, Ephestia cautella, start laying eggs shortly after adult emergence. All eggs are laid within 4 days and the adult's total life span is 5 to 6 days. If mating is prevented, egg laying is drastically delayed and the life span is extended to approximately 10 to 11 days. Virgin females lay fewer eggs than mated insects. If the juvenile hormone analogue methoprene is applied topically (100 ng/pupa) 2 to 3 days prior to adult emergence, the number of eggs per virgin female increases and the life span is reduced, as compared with nontreated virgins, and reaches values similar to control (mated) females. Changs in the ecdysteroid titer of females are related to egg laying. The concentrations increase and reach a maximum before most of the eggs are laid. Accordingly, the peak maximum is delayed in virgins as compared with mated females. This delay is prevented after application of methoprene. Mated and virgin females have lower ecdysteroid levels than treated virgins. In contrast to mated females, males have much lower ecdysteroid levels throughout their adult life. Copyright © 1991 Wiley‐Liss, Inc.
Scientific Publication
You may also be interested in