[Morphogenetic effects of precocene II on nymphs of Rhodnius prolixus (Stal, 1859) (Hemiptera-Triatominae)]. / Efeitos morfogênicos de precoceno II em ninfas de Rhodnius prolixus (Stal, 1859) (Hemiptera-Triatominae)
Mem Inst Oswaldo Cruz
; 79(4): 397-407, 1984.
Article
en Pt
| MEDLINE
| ID: mdl-6398392
The morphogenetic effects of Precocene II in nymphs of 1st-, 2nd-, 3rd-, and 4th-instar of Rhodnius prolixus were studied. A high number of insects underwent precocious metamorphosis by topical treatment (10-30 micrograms/insect) or adding the drug to the blood meal (25 micrograms/ml of blood). Adultoids of 4th- and 5th-instar, obtained by both treatments of 3rd- and 4th-instar, respectively, had mainly fully adult abdominal cuticle, ocelli, three segmented tarsi, rudimentary wings containing adult articulation with the thorax and deformed genitalia while adultiforms of 2nd- and 3rd-instar had very slight imaginal morphological characteristics. Topical treatment induced a high mortality in nymphs of 1st-instar and Precocene II given orally produced a high number of adultoids in this instar. The mode of application and the action of Precocene II on different nymphal instars were interpreted.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Rhodnius
/
Benzopiranos
/
Triatominae
/
Hormonas Juveniles
Límite:
Animals
Idioma:
Pt
Revista:
Mem Inst Oswaldo Cruz
Año:
1984
Tipo del documento:
Article
Pais de publicación:
Brasil