Potent juvenile hormone mimic, 1-(4'-ethylphenoxy)-6,7-epoxy-3,7-dimethyl-2-octene, labeled with tritium in either the ethylphenyl- or geranyl-derived moiety

1972 ◽  
Vol 20 (2) ◽  
pp. 439-442 ◽  
Author(s):  
Hideo Kamimura ◽  
Bruce D. Hammock ◽  
Izuru Yamamoto ◽  
John E. Casida
Keyword(s):  
Juvenile Hormone ◽  
Juvenile Hormone Mimic

scholarly journals The effect of a juvenile hormone mimic, methoprene, against mosquito larvae

1975 ◽  
Vol 26 (2-3) ◽  
pp. 105-111 ◽  
Author(s):  
Kazuo BUEI ◽  
Sumiyo ITO ◽  
Takashi YAMADA ◽  
Shinichi GAMO ◽  
Masaaki KATO
Keyword(s):  
Juvenile Hormone ◽  
Mosquito Larvae ◽  
Juvenile Hormone Mimic

Remating behavior in Anastrepha fraterculus (Diptera: Tephritidae) females is affected by male juvenile hormone analog treatment but not by male sterilization

2013 ◽  
Vol 103 (3) ◽  
pp. 310-317 ◽  
Author(s):  
S. Abraham ◽  
M.C. Liendo ◽  
F. Devescovi ◽  
P.A. Peralta ◽  
V. Yusef ◽  
...  
Keyword(s):  
Juvenile Hormone ◽  
Protein Intake ◽  
Fruit Fly ◽  
South American ◽  
Field Cage ◽  
Anastrepha Fraterculus ◽  
Hormone Analog ◽  
Juvenile Hormone Mimic ◽  
Sperm Volume ◽  
South American Fruit Fly

AbstractThe sterile insect technique (SIT) has been proposed as an area-wide method to control the South American fruit fly, Anastrepha fraterculus (Wiedemann). This technique requires sterilization, a procedure that affects, along with other factors, the ability of males to modulate female sexual receptivity after copulation. Numerous pre-release treatments have been proposed to counteract the detrimental effects of irradiation, rearing and handling and increase SIT effectiveness. These include treating newly emerged males with a juvenile hormone mimic (methoprene) or supplying protein to the male's diet to accelerate sexual maturation prior to release. Here, we examine how male irradiation, methoprene treatment and protein intake affect remating behavior and the amount of sperm stored in inseminated females. In field cage experiments, we found that irradiated laboratory males were equally able to modulate female remating behavior as fertile wild males. However, females mated with 6-day-old, methoprene-treated males remated more and sooner than females mated with naturally matured males, either sterile or wild. Protein intake by males was not sufficient to overcome reduced ability of methoprene-treated males to induce refractory periods in females as lengthy as those induced by wild and naturally matured males. The amount of sperm stored by females was not affected by male irradiation, methoprene treatment or protein intake. This finding revealed that factors in addition to sperm volume intervene in regulating female receptivity after copulation. Implications for SIT are discussed.

scholarly journals A16 Ovicidal effects of the juvenile hormone mimic, Pyriproxyfen on the cat flea

1998 ◽  
Vol 49 (Supplement) ◽  
pp. 45
Author(s):  
Y. Yoshioka ◽  
Y. Ono ◽  
T. Okano ◽  
K. Buei
Keyword(s):  
Juvenile Hormone ◽  
Cat Flea ◽  
Juvenile Hormone Mimic ◽  
Ovicidal Effects

The effect of a juvenile hormone mimic on development of the metathoracic release site of the Brindley's glands of Rhodnius prolixus

1981 ◽  
Vol 59 (5) ◽  
pp. 850-857 ◽  
Author(s):  
F. Michael Barrett
Keyword(s):  
Juvenile Hormone ◽  
Critical Period ◽  
Morphological Characteristics ◽  
Release Site ◽  
Rhodnius Prolixus ◽  
Site Development ◽  
Juvenile Hormone Mimic ◽  
Emerging Insects

The development of the metathoracic release site of Brindley's glands in adult Rhodnius prolixus has been investigated by treating larvae with juvenile hormone (JH) mimic at different times during the last instar and observing the extent of development in this region in the subsequently emerging insects. The results demonstrate a critical period of JH mimic sensitivity for release-site development comparable to that previously established for other adult morphological characteristics.

ChemInform Abstract: SYNTHESIS OF (.+-.)-ECHINOLONE, A JUVENILE HORMONE MIMIC

1978 ◽  
Vol 9 (23) ◽  
Author(s):  
O. P. VIG ◽  
S. D. SHARMA ◽  
S. S. BARI ◽  
V. K. HANDA
Keyword(s):  
Juvenile Hormone ◽  
Juvenile Hormone Mimic

scholarly journals E93 expression and links to the juvenile hormone in hemipteran mealybugs with insights on female neoteny

2018 ◽  
Author(s):  
Isabelle Mifom Vea ◽  
Sayumi Tanaka ◽  
Tomohiro Tsuji ◽  
Takahiro Shiotsuki ◽  
Akiya Jouraku ◽  
...  
Keyword(s):  
Juvenile Hormone ◽  
Adult Development ◽  
Molecular Mechanisms ◽  
Expression Patterns ◽  
Scale Insects ◽  
List Type ◽  
Male Adult ◽  
Male Development ◽  
Juvenile Hormone Mimic ◽  
Insect Metamorphosis

AbstractInsect metamorphosis generates reproductive adults and is commonly accompanied by the direct or indirect development of wings. In some winged insects, the imago is altered by life history changes. For instance, in scale insects and mealybugs, reproductive females retain juvenile features and are wingless. The transcription factor E93 triggers metamorphosis and plays in concert with the juvenile hormone pathway to guarantee the successful transition from juvenile to adult. We previously provided evidence of an atypical down-regulation of the juvenile hormone pathway during female adult development in the Japanese mealybug. Here, we further investigate how E93 is involved in the production of neotenic wingless females, by identifying its isoforms, assessing their expression patterns and evaluating the effect of exogenous juvenile hormone mimic treatment on E93. This study identifies three E93 isoforms on the 5’ end based on Japanese mealybug cDNA and shows that female development occurs with the near absence of E93 transcripts, as opposed to male metamorphosis. Additionally, while male development is typically affected by exogenous juvenile hormone mimic treatments, females seem to remain insensitive to the treatment, and up-regulation of the juvenile hormone signaling is not observed. Furthermore, juvenile hormone mimic treatment on female nymphs did not have obvious effect on E93 transcription, while treatment on male prepupae resulted in decreased E93 transcripts. In this study, we emphasize the importance of examining cases of atypical metamorphosis as complementary systems to provide a better understanding on the molecular mechanisms underlying insect metamorphosis. For instance, the factors regulating the expression of E93 are largely unclear. Investigating the regulatory mechanism of E93 transcription could provide clues towards identifying the factors that induce or suppress E93 transcription, in turn triggering male adult development or female neoteny.Graphical abstractHighlights- Neotenic female Planococcus kraunhiae (Japanese mealybug) develops with low E93 expression.- E93 expression pattern during male development is typical to other insects.- Juvenile hormone mimic treatment on male prepupae results in decreased E93 transcripts.- Juvenile hormone mimic treatment on female nymphs does not have obvious effects on E93 transcription.- Female mealybugs have low sensitivity to juvenile hormone mimic treatments compared to males and other insects.

scholarly journals Effect of a Juvenile Hormone Mimic, Methoprene, against Synanthropic Flies

1979 ◽  
Vol 4 (4) ◽  
pp. 481-485 ◽  
Author(s):  
Kazuo BUÉI ◽  
Tomoyoshi NIKI ◽  
Masato TOYODA
Keyword(s):  
Juvenile Hormone ◽  
Juvenile Hormone Mimic
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