THE EFFECT OF JUVENILE HORMONE ON THE FUNCTION OF THE ACCESSORY GLAND OF THE ADULT MALE COCKROACH PERIPLANETA AMERICANA (ORTHOPTERA: BLATTIDAE)

1973 ◽  
Vol 105 (10) ◽  
pp. 1275-1280 ◽  
Author(s):  
W. D. Blaine ◽  
S. E. Dixon
Keyword(s):  
Juvenile Hormone ◽  
Adult Male ◽  
Protein Production ◽  
Periplaneta Americana ◽  
Accessory Gland ◽  
Corpora Allata ◽  
Adult Males ◽  
Normal Amount ◽  
Accessory Glands

AbstractThe juvenile hormone was necessary for the sex accessory glands in newly metamorphosed, adult males, to produce a normal amount of spermatophore material. Protein production could be restored to normal in allatectomized newly metamorphosed roaches by implanting adult or nymphal roach corpora allata. In decapitated roaches, the weight of the accessory gland is reduced drastically. The weight of the gland could be increased by implanting adult roach corpora allata, or by injecting juvenile hormone.

Juvenile hormone biosynthesis during sexual maturation and after mating in the adult male migratory grasshopper, Melanoplus sanguinipes

1985 ◽  
Vol 63 (12) ◽  
pp. 2789-2792 ◽  
Author(s):  
G. A. Couche ◽  
C. Gillott ◽  
S. S. Tobe ◽  
R. Feyereisen
Keyword(s):  
Juvenile Hormone ◽  
Adult Male ◽  
Sexual Maturation ◽  
Adult Emergence ◽  
Corpora Allata ◽  
Melanoplus Sanguinipes ◽  
Juvenile Hormone Iii ◽  
Juvenile Hormone Biosynthesis ◽  
Single Mating ◽  
Hormone Biosynthesis

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.

scholarly journals Effects of Inhibitors on Juvenile Hormone III Biosynthesis in Corpora Allata of the Cockroach Periplaneta americana L., in Vitro

1984 ◽  
Vol 9 (4) ◽  
pp. 755-758 ◽  
Author(s):  
Gerald T. BROOKS ◽  
Grahame E. PRATT ◽  
Anthony P. OTTRIDGE ◽  
John A. COCKS
Keyword(s):  
Juvenile Hormone ◽  
Periplaneta Americana ◽  
Corpora Allata ◽  
Juvenile Hormone Iii

scholarly journals Crucial Role of Juvenile Hormone Receptor Components Methoprene-Tolerant and Taiman in Sexual Maturation of Adult Male Desert Locusts

Biomolecules ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 244
Author(s):  
Michiel Holtof ◽  
Joachim Van Lommel ◽  
Marijke Gijbels ◽  
Elfie Dekempeneer ◽  
Bart Nicolai ◽  
...  
Keyword(s):  
Juvenile Hormone ◽  
Adult Male ◽  
Sexual Maturation ◽  
Crucial Role ◽  
Molecular Mechanisms ◽  
Relative Weight ◽  
Reproductive Physiology ◽  
Corpora Allata ◽  
Reproductive Capacity

Currently (2020), Africa and Asia are experiencing the worst desert locust (Schistocerca gregaria) plague in decades. Exceptionally high rainfall in different regions caused favorable environmental conditions for very successful reproduction and population growth. To better understand the molecular mechanisms responsible for this remarkable reproductive capacity, as well as to fill existing knowledge gaps regarding the regulation of male reproductive physiology, we investigated the role of methoprene-tolerant (Scg-Met) and Taiman (Scg-Tai), responsible for transducing the juvenile hormone (JH) signal, in adult male locusts. We demonstrated that knockdown of these components by RNA interference strongly inhibits male sexual maturation, severely disrupting reproduction. This was evidenced by the inability to show mating behavior, the absence of a yellow-colored cuticle, the reduction of relative testes weight, and the drastically reduced phenylacetonitrile (PAN) pheromone levels of the treated males. We also observed a reduced relative weight, as well as relative protein content, of the male accessory glands in Scg-Met knockdown locusts. Interestingly, in these animals the size of the corpora allata (CA), the endocrine glands where JH is synthesized, was significantly increased, as well as the transcript level of JH acid methyltransferase (JHAMT), a rate-limiting enzyme in the JH biosynthesis pathway. Moreover, other endocrine pathways appeared to be affected by the knockdown, as evidenced by changes in the expression levels of the insulin-related peptide and two neuroparsins in the fat body. Our results demonstrate that JH signaling pathway components play a crucial role in male reproductive physiology, illustrating their potential as molecular targets for pest control.

Dual role of the Pax genepairedin accessory gland development ofDrosophila

Development ◽  
2002 ◽  
Vol 129 (2) ◽  
pp. 339-346 ◽  
Author(s):  
Lei Xue ◽  
Markus Noll
Keyword(s):  
Male Fertility ◽  
Cell Types ◽  
Accessory Gland ◽  
Dual Role ◽  
Secretory Cells ◽  
Adult Males ◽  
Mating Activity ◽  
Promote Cell Proliferation ◽  
Accessory Glands ◽  
Late Function

The Drosophila Pax gene paired encodes a transcription factor that is required for the activation of segment-polarity genes and proper segmentation of the larval cuticle, postembryonic viability and male fertility. We show that paired executes a dual role in the development of male accessory glands, the organ homologous to the human prostate. An early function is necessary to promote cell proliferation, whereas a late function, which regulates the expression of accessory gland products such as the sex peptide and Acp26Aa protein, is essential for maturation and differentiation of accessory glands. The late function exhibits in main and secondary secretory cells of accessory glands dynamic patterns of Paired expression that depend in both cell types on the mating activity of adult males, possibly because Paired expression is regulated by negative feedback. The early Paired function depends on domains or motifs in its C-terminal moiety and the late function on the DNA-binding specificity of its N-terminal paired-domain and/or homeodomain. Both Paired functions are absolutely required for male fertility, and both depend on an enhancer located within 0.8 kb of the downstream region of paired.

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