Short- and long-term effects of proallatotoxin (ethoxyprecocene II) on Rhodnius prolixus females |
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Authors: | P de Azambuja E S Garcia |
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Affiliation: | Departamento de Biologia Geral, Universidade Federal Fluminense, Niterói, RJ, Brasil. |
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Abstract: | Oogenesis and oviposition can be inhibited in female of Rhodnius prolixus by means of short-term experiment (first reproductive cycle) of a single dose of ethoxyprecocene II given by ingestion. The inhibition is dose-dependent as measured by oocyte growth, egg maturation and egg deposition. In a long-term experiment (second and third reproductive cycles) egg production and oogenesis can be partially or totally re-established by subsequent blood meals without ethoxyprecocene II. These findings suggest that in female R. prolixus, damage caused to corpus allatum by ethoxyprecocene II, in certain cases, is not irreversible. |
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