The influence of smoke volatiles on sexual maturation and juvenile hormone biosynthesis in the black army cutworm, Actebia fennica (Lepidoptera: Noctuidae)

2000 ◽  
Vol 30 (8-9) ◽  
pp. 855-862 ◽  
Author(s):  
Claude Everaerts ◽  
Michel Cusson ◽  
Jeremy N. McNeil
1985 ◽  
Vol 63 (12) ◽  
pp. 2789-2792 ◽  
Author(s):  
G. A. Couche ◽  
C. Gillott ◽  
S. S. Tobe ◽  
R. Feyereisen

Juvenile hormone III is the exclusive juvenile hormone produced by the corpora allata in adult male Melanoplus sanguinipes. For the first 5 days after adult emergence, the rate of juvenile hormone biosynthesis is low, it then increases rapidly to peak on day 7. Between days 7 and 12 the rate declines to that of newly emerged males and then increases again in 14-day insects. In males allowed a single mating on day 7, the rate of juvenile hormone biosynthesis remains elevated at least to day 12.


1978 ◽  
Vol 56 (10) ◽  
pp. 2097-2102 ◽  
Author(s):  
L. I. Avruch ◽  
S. S. Tobe

The time course of release of C16 juvenile hormone (JH III) from isolated corpora allata (CA) of male Schistocerca gregaria was followed at selected times during sexual maturation. The rates of JH release over an 8-h incubation period were observed to be directly related to the age of the animals: CA from younger animals showed low rates of release (days 5 and 8) whereas CA from older animals showed intermediate to high rates of release (days 12–13). The mean rate of JH release is linear for at least 4 h. The only biosynthesized JH which could be detected in the incubation medium by radio gas–liquid chromatography was C16JH.The dry weight of the accessory reproductive glands (ARG) was also followed during the period of sexual maturation. This increased rapidly between days 10 and 15 and leveled off thereafter. The biosynthesis of C16JH, as determined by a radiochemical assay in vitro, also increased during this period, suggesting a functional relationship between synthesis of ARG secretion and JH.


1983 ◽  
Vol 18 (1) ◽  
pp. 111-115 ◽  
Author(s):  
Kiyoshi HIRUMA ◽  
Shigemi YAGI ◽  
Akira ENDO

Sign in / Sign up

Export Citation Format

Share Document