Relationships between locomotor activity, oxidative damage and life span in males and females of the linden bug, Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

Title:

Relationships between locomotor activity, oxidative damage and life span in males and females of the linden bug, Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

Creator:

Buricova, Marcela and Magdalena Hodková

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:09c25d34-c9b3-4e54-bfcd-c597506c0dff
uuid:09c25d34-c9b3-4e54-bfcd-c597506c0dff

Subject:

Zoologie, zoologie, entomologie, Heteroptera, Pyrrhocoridae, Pyrrhocoris apterus, corpus allatum, juvenile hormone, allatectomy, diapause, locomotor activity, survival, life span, oxidative stress, protein carbonyls, 2, and 59

Type:

article, články, model:article, and TEXT

Description:

n this study we addressed a question of whether experimental manipulations that increase life span also reduce physical activity and molecular oxidative damage. We used three phenotypes of male and female Pyrrhocoris apterus that survive for different lengths of time, diapausing insects, reproductive insects and insects from which the corpus allatum, the source of juvenile hormone, was surgically removed. Protein carbonyl content of the thoracic muscles was used as an index of molecular oxidative modification. Diapause or ablation of the corpus allatum (allatectomy) was associated with an extended life span of both sexes, but only those individuals that were in diapause were less active. The carbonyl content, both relative (per protein unit) and absolute (per thorax) increased with age in reproductive insects of both sexes. However, the associations between the carbonyl content and diapause and allatectomy differed in males and females. In males, the carbonyl content was not associated with either diapause or allatectomy. There was no age-related increase in the relative and absolute carbonyl levels in diapausing females, while only the increase in the relative carbonyl level was absent in allectomized females. Overall, the results indicate that both allatectomy and diapause prolonged life span, but had different and sex-specific effects on locomotor activity and carbonyl content. Only the extension of the life span of diapausing females was correlated with both reduced locomotor activity and reduced carbonyl content., Marcela Buricova, Magdalena Hodkova., and Obsahuje seznam literatury

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

European Journal of Entomology | 2013 Volume:110 | Number:3

Harvested from:

CDK

Metadata only:

false