Screening and Structure-Activity Relationships of Synthetic Juvenile Hormone Analogues for Panstrongylus megistus, a Primary Vector of Chagas’ Disease in Brazil1

1978 ◽  
Vol 71 (6) ◽  
pp. 950-955 ◽  
Author(s):  
R. Pinchin ◽  
A. M. De Oliveira Filho ◽  
M. J. Figueiredo ◽  
C. A. Muller ◽  
B. Gilbert ◽  
...  
Keyword(s):  
Juvenile Hormone ◽  
Chagas Disease ◽  
Panstrongylus Megistus ◽  
Structure Activity Relationships ◽  
Structure Activity ◽  
Juvenile Hormone Analogues ◽  
Primary Vector

scholarly journals Spontaneous morphogenetic juvenilization observed in laboratory populations of vector species of Chagas disease (Triatominae)

1973 ◽  
Vol 7 (4) ◽  
pp. 243-260 ◽  
Author(s):  
Alina Perlowagora-Szumlewicz ◽  
Hermenegildo, N. da Cruz ◽  
Julieta A. Nabuco de Araújo
Keyword(s):  
Juvenile Hormone ◽  
Chagas Disease ◽  
Striking Similarity ◽  
Wild Populations ◽  
Vector Species ◽  
Genetic Trait ◽  
Arrested Development ◽  
Laboratory Populations ◽  
Juvenile Hormone Analogues ◽  
Complete Metamorphosis

Reported are observations on spontaneous occurring morphogenetic juvenilization in laboratory populations of vector species of Chagas disease. Two general effects have been observed: arrested development and uncoordinated development. These are manifested by supernumerary nymphs (6th stage), intermediate nymphal-adult stages, badly deformed adults developed from 5th instar nymphs, uncoordinated development manifested by grotesque forms of adults, supernumerary adults unable to complete metamorphosis and complete supernumerary adults produced by 6th stage nymphs. The reoccurrence of insects with identical grades of juvenilization in the population is an indication that this is a genetic trait that might be inherited. The factors responsible for morphogenetic juvenilization cannot be transmitted through the juvenilized insects because they are sterile, than they were transmitted through normal insects probably as a recessive or a group recessive factors. The spontaneous morphogenetic juvenilization observed in laboratory populations has a striking similarity to juvenilizing effects induced by application of juvenile hormone analogues, described in the literature and also obtained in our laboratory in a study to be published. Thus it is suggested that both; the altered phenotypes occurring in wild populations and their "phenocopies" induced by the application of juvenile hormone analogues are products of gene controlled identical reactions.

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