Resistance to starvation of Rhodnius neivai Lent, 1953 (Hemiptera: Reduviidae: Triatominae) under experimental conditions

Cabello, Daniel R

doi:10.1590/s0074-02762001000400023

Cited by 16 publications

(7 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although blood sucking and carnivorous bugs are known to be cannibalistic under starvation conditions (Cabello, 2001), such feeding behaviour has been reported only once among seed feeding Heteroptera. Only under extreme conditions, which were not further described, was cannabilism observed (Bongers, 1969).…”

Section: Discussionmentioning

confidence: 99%

Feeding, nutrient flow, and digestive enzyme release in the giant milkweed bug, Oncopeltus fasciatus

Woodring

Hoffmann

Lorenz

2007

Physiological Entomology

View full text Add to dashboard Cite

The giant milkweed bug, Oncopeltus fasciatus , is an intermittent feeder, spending most of its time in compact groups away from the food, with feeding bouts lasting 30 -60 min. They macerate a small area of the seed with their stylets, secreting large amounts of saliva (which suspends and emulsifies the seed tissue), and quickly suck the emulsion into the gut. Therefore, little digestive activity occurs in the seed tissue. Freshly ingested food in the first gut region (V1) consists of 50% water, 46% lipid, 5% protein, and 1% soluble carbohydrates. The junction of the midgut and hindgut lacks a lumen in the larvae stages, and a 3 L large oil drop (> 85% triacylglycerides) accumulates in the third gut region (V3). Approximately 24 h after the imaginal moult, this large volume of oil and faeces is defecated, and thereafter an oily faeces is defecated several times daily. It is postulated that the delayed egestion in larvae protects them against suffocation due to self-soiling with oily faeces. Serine proteases are absent in the gut and, instead, a cystein proteinase, inhibited by E64, is present (gut pH 6.0). High lipase activity was found throughout the gut, but only limited amylase activities. Basal levels of all three enzymes occurred throughout the gut, but at lower levels in starved bugs. Salivary gland extracts contain a cysteine proteinase and a lipase, but no amylase.

show abstract

Section: Discussionmentioning

confidence: 99%

Feeding, nutrient flow, and digestive enzyme release in the giant milkweed bug, Oncopeltus fasciatus

Woodring

Hoffmann

Lorenz

2007

Physiological Entomology

View full text Add to dashboard Cite

show abstract

“…Sin embargo, el ciclo de vida reportado en R. neivai alimentado sobre conejos fue más prolongado que el de la misma especie alimentada sobre gallinas (36). Por otro lado, no se observaron diferencias significativas en cohortes de Meccus picturatus alimentadas sobre gallinas o sobre conejos (27).…”

Section: Ciclo De Vidaunclassified

Comparación del ciclo de vida de Rhodnius colombiensis Moreno, Jurberg & Galvão, 1999 y Rhodnius prolixus Stal, 1872(Hemiptera, Reduviidae, Triatominae) en condiciones de laboratorio

et al. 2007

View full text Add to dashboard Cite

Introducción. Rhodnius colombiensis es un triatomino silvestre asociado a palmas de vino (Attalea butyracea) en la cuenca alta del río Magdalena (Colombia). La frecuente invasión de estos vectores al domicilio y las elevadas prevalencias de Trypanosoma cruzi en infecciones naturales constituyen un riesgo en la transmisión de la enfermedad de Chagas. Objetivo. Comparar la duración del ciclo de vida de R. colombiensis y R. prolixus en condiciones de laboratorio. Materiales y métodos. Se utilizaron 92 insectos de cada especie. Se estudió la duración de cada estadio, el número de comidas por estadio, el porcentaje de mortalidad, la causa de muerte, el promedio de huevos puestos por cada hembra, el número de huevos fértiles y la longevidad de los adultos. Resultados. Los promedios de duración de todos los estadios de desarrollo de R. colombiensis fueron mayores que en R. prolixus, presentando diferencias significativas en el tiempo transcurrido desde huevo hasta adulto. Los promedios de huevos puestos y huevos fértiles, presentaron diferencias significativas, siendo mayores en R. prolixus que en R. colombiensis. El porcentaje total de mortalidad de R. colombiensis fue de 31,5% y de 6,5% para R. prolixus. La longevidad en las hembras fue mayor en R. prolixus. Conclusiones. Los estadios de R. prolixus tienen menor duración, las ninfas en general realizan menor número de comidas que R. colombiensis, los adultos de R. prolixus toman mayor número de comidas y ovipositan mayor número de huevos fértiles, presentando hembras con mayor longevidad. Todos estos parámetros indican que R. prolixus presenta mejor éxito reproductivo que R. colombiensis, en las condiciones experimentales utilizadas. Los datos inéditos sobre el ciclo de vida de R. colombiensis serán de utilidad para el mantenimiento de las colonias en el laboratorio. Materials and methods. Ninety-two individuals for each species were studied. The mean duration time of each stage, the number of bloodmeals for each stage, the percentage of mortality, the cause of death, the mean of eggs laid by female, the number of fertile eggs and the longevity of adults were recorded. Results. The mean duration time of all stages of R. colombiensis was higher than in R. prolixus, producing significant differences in the overall time from egg to adult. The mean of total eggs and fertile eggs showed significant differences, being higher in R. prolixus than in R. colombiensis. The total mortality was 31.5% for R. colombiensis and 6.5% for R. prolixus. The longevity of females was higher in R. prolixus. Conclusions. The stages of R. prolixus are of relatively short duration. In general, the nymphs take fewer bloodmeals than R. colombiensis, the adults take more bloodmeals and oviposit a larger number of fertile eggs, and females have a greater longevity. These parameters indicated that R. prolixus has superior reproductive success in comparison with R. colombiensis under the experimental conditions used. These new life cycle data of R. colombiensis will be useful for maintenance of labo...

show abstract

“…Accordingly, blood consumption constitutes an important indicator of the amount of ingested blood that is converted into body substance. The importance of and the relationship between feeding and reproductive factors are well known for several triatomine species (Brasileiro 1982, Catalá de Montenegro 1983, Cabello et al 1987, Lima et al 1987, Guarneri et al 2000, Pires et al 2004). For T. patagonica , there is information on feeding and defecation patterns in nymphs and adults (Nattero et al 2002, Rodriguez et al 2009), however, feeding patterns and the use of blood ingested have still not been explored in terms of reproductive parameters.…”

Section: Introductionmentioning

confidence: 99%

“…Blood meal source has been considered an important factor affecting nymphal development and mortality as well as reproductive parameters related to the adaptation to different host‐feeding preferences of each species, among other factors (Braga et al 1999, Guarneri et al 2000, Emmanuelle‐Manchado et al 2002, Martínez‐Ibarra et al 2003). These differences can be attributed to the environment where they live and to the natural history of each species (Cabello et al 1987, Guarneri et al 2000). On the other hand, fecundity and fertility may be affected by factors such as age, nutritional status, and the number of copulations (Rabinovich 1985, Guarneri et al 2000, Pires et al 2004, Daflon‐Teixeira et al 2009, Nattero et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Effects of blood meal source on food resource use and reproduction inTriatoma patagonicaDel Ponte (Hemiptera, Reduviidae)

Nattero

Rodríguez

Crocco

2013

Journal of Vector Ecology

View full text Add to dashboard Cite

Triatoma patagonica (Del Ponte, 1929) (Hemiptera-Reduviidae) is a peridomestic vector of Chagas disease that has been frequently found colonizing peridomestic structures in several localities in Argentina. Studying relationships between feeding and reproductive factors is important because these traits regulate population density and define vectorial capacity. Since T. patagonica can circulate among peridomestic structures taking blood from both bird and mammal hosts, we evaluated the extent to which different blood meal sources affect food resource use and reproductive parameters. We used 5 th instar nymphs and females that fed on either guinea pigs or pigeons to estimate food resource use. We estimated reproductive parameters in adults that fed on these sources. Nymphs and adults showed differences in blood consumption between feeding sources. Females fed on pigeons ingested more blood and needed a higher amount of blood to produce an egg than females fed on guinea pigs. There were no differences in the number of eggs laid and hatched between insects fed on different feeding sources. The higher amount of blood ingested and consumed by T. patagonica fed on pigeons did not translate into higher fecundity or fertility. The lower amount of guinea pig blood ingested was offset by its high nutritional quality. Journal of Vector Ecology 38 (1): 127-133. 2013.

show abstract

Resistance to starvation of Rhodnius neivai Lent, 1953 (Hemiptera: Reduviidae: Triatominae) under experimental conditions

Cited by 16 publications

References 14 publications

Feeding, nutrient flow, and digestive enzyme release in the giant milkweed bug, Oncopeltus fasciatus

Feeding, nutrient flow, and digestive enzyme release in the giant milkweed bug, Oncopeltus fasciatus

Comparación del ciclo de vida de Rhodnius colombiensis Moreno, Jurberg & Galvão, 1999 y Rhodnius prolixus Stal, 1872(Hemiptera, Reduviidae, Triatominae) en condiciones de laboratorio

Effects of blood meal source on food resource use and reproduction inTriatoma patagonicaDel Ponte (Hemiptera, Reduviidae)

Contact Info

Product

Resources

About