Effects of sub-lethal high temperature on an insect, Rhodnius prolixus (Stål.). IV. Egg formation, oviposition and sterility.

Effects of sub-lethal high temperature on an insect, Rhodnius prolixus (Stål.). V. A possible mechanism of the inhibition of reproduction.

Since the basic discovery by Wigglesworth (1936) of the regulation of reproduction in Rhodnius adults by the corpus allatum hormone, a great deal of attention has been paid to the relationship between the endocrine system and reproductive activity in insects. These researches led to the formulation of some general ideas of how roproduction is hormonally controlled in a wide variety of insects, ...

Effects of Infection by Trypanosoma cruzi and Trypanosoma rangeli on the Reproductive Performance of the Vector Rhodnius prolixus

The insect Rhodnius prolixus is responsible for the transmission of Trypanosoma cruzi, which is the etiological agent of Chagas disease in areas of Central and South America. Besides this, it can be infected by other trypanosomes such as Trypanosoma rangeli. The effects of these parasites on vectors are poorly understood and are often controversial so here we focussed on possible negative effec...

Tropical insect collections and DNA extraction, using Rhodnius Stål 1859 (Hemiptera: Heteroptera: Reduviidae: Triatominae).

Genetically Modifying the Insect Gut Microbiota to Control Chagas Disease Vectors through Systemic RNAi

Technologies based on RNA interference may be used for insect control. Sustainable strategies are needed to control vectors of Chagas disease such as Rhodnius prolixus. The insect microbiota can be modified to deliver molecules to the gut. Here, Escherichia coli HT115(DE3) expressing dsRNA for the Rhodnius heme-binding protein (RHBP) and for catalase (CAT) were fed to nymphs and adult triatomin...

Effects of Sub-lethal High Temperature on an Insect, Rhodnius Prolixus (stal.) Ii. Mechanism of Cessation and Delay of Moulting

It is now well established that moulting in insects is under hormonal control; a hormone secreted by the brain activates the thoracic (prothoracic) glands which in turn secrete the moulting hormone (for review, see Wigglesworth, 1954, 1964). Investigating the influence of temperature on moulting in Rhodnius, Wigglesworth (1952a) stated that as the temperature rises above 35—36 C. the secretion ...