scholarly journals Production and sex-pheromonal activity of alkaloid-derived androconial compounds in the danaine butterfly,Parantica sita(Lepidoptera: Nymphalidae: Danainae)

2016 ◽  
Vol 119 (4) ◽  
pp. 1036-1059 ◽  
Author(s):  
Keiichi Honda ◽  
Yasuyuki Honda ◽  
Junya Matsumoto ◽  
Yoshiaki Tsuruta ◽  
Wataru Yagi ◽  
...  
Keyword(s):  
Pheromonal Activity

Inhibitory action of (4S,6S,7R)-isomer to pheromonal activity of serricornin, (4S,6S,7S)-7-Hydroxy-4,6-dimethyl-3-nonanone

1986 ◽  
Vol 12 (1) ◽  
pp. 83-89 ◽  
Author(s):  
M. Mori ◽  
K. Mochizuki ◽  
M. Kohno ◽  
T. Chuman ◽  
A. Ohnishi ◽  
...  
Keyword(s):  
Inhibitory Action ◽  
Pheromonal Activity

scholarly journals Sex pheromones in amphibians: a review 

2012 ◽  
Vol 50 (No. 9) ◽  
pp. 385-389 ◽  
Author(s):  
J. Rajchard
Keyword(s):  
Sex Pheromones ◽  
Sexual Relationships ◽  
Arginine Vasotocin ◽  
Biologically Active ◽  
Amino Acid Residues ◽  
Courtship Pheromone ◽  
Skin Glands ◽  
Inactive Form ◽  
Female Attraction ◽  
Pheromonal Activity

Amphibians are interesting animals, very often kept by aquarists and vivarists. Their ability of intraspecific chemical signalization belongs to very interesting biological features. The skin glands of anurans secrete various biologically active compounds. The pheromones are peptides consisting of various numbers of amino acid residues and their synthesis is regulated by hormones (e.g. prolactin and androgens). Similarly, the responsiveness of the vomeronasal epithelium to some of these compounds is enhanced by some hormonal substances (prolactin and oestrogen). Hypophyseal hormones, arginine vasotocin and gonadotropin-releasing hormone are involved in the humoral regulation of pheromone discharge. The storage of some compounds with pheromonal activity in a biologically inactive form was also proved. The pheromones have an important role in sexual relationships. These chemosignals increase female receptivity and are probably involved in the mate choice. The courtship pheromone signals may be conserved across related species. Chemosignals play an important role in female attraction and/or territorial announcement. In addition to sex pheromones, various neuropeptides, antimicrobial and other biologically active peptides were found in skin glands of these amphibians. The infochemical system can be disturbed by a chemical influence in the environment.

Sexual pheromone accumulation and response in agar plate and liquid cultures of Dictyostelium discoideum

1982 ◽  
Vol 28 (11) ◽  
pp. 1273-1276 ◽  
Author(s):  
Paul S. Morris ◽  
Keith E. Lewis ◽  
Danton H. O'Day
Keyword(s):  
Dictyostelium Discoideum ◽  
Liquid Culture ◽  
Agar Plate ◽  
Maximal Activity ◽  
Sexual Pheromone ◽  
Isolation And Characterization ◽  
Sexual Pheromones ◽  
Slime Moulds ◽  
Cellular Slime ◽  
Pheromonal Activity

Sexual development in the mated cultures of Dictyostelium discoideum is initiated by one or more pheromones. In agar plate cultures of NC4, the presence of the pheromone becomes detectable by 22 h and reaches its maximal activity by 24 h. Cells of V12 from plate cultures also reach their maximal responsiveness at 24 h. In liquid culture, the NC4 pheromonal activity is detectable by 10 h and increases to a maximum at 15 h before declining so that by 30 h no activity is detectable. The V12 cells develop the competence to respond to the pheromone by 10 h and increase to a peak responsiveness by 15 h after which they lose the ability to respond. These data support earlier experiments demonstrating that sexual pheromones exist in the cellular slime moulds. The results of the liquid culture experiments in which the pheromonal induction of macrocyst formation reaches levels equivalent to 30% of mated cultures (NC4 × V12) also suggest that this pheromone bioassay system is sensitive enough to permit the isolation and characterization of the sexual pheromones of D. discoideum.

Pheromonal activity of single castoreum constituents in beaver,Castor canadensis

1991 ◽  
Vol 17 (4) ◽  
pp. 715-734 ◽  
Author(s):  
D. M�ller-Schwarze ◽  
Peter W. Houlihan
Keyword(s):  
Castor Canadensis ◽  
Pheromonal Activity
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