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Resistance to Environmental Stress in Drosophila melanogaster Selected for Postponed Senescence
Abstract
Adult Drosophila melanogaster from populations that exhibit postponed senescence were compared to flies from control populations. Male and female flies from populations displaying postponed senescence were significantly more resistant than control flies to desiccation, starvation, and the vapor of a 15% ethanol solution. In the presence of desiccant or when humidity was not controlled, flies from postponed-senescence populations were more resistant than controls to heat stress in the range 37-39 C. Differences in heat tolerance disappeared when experiments were conducted at high humidity. Tolerance to starvation increased with age for females but remained approximately constant for males. Tolerance to desiccation decreased with age for both sexes. Differences between control and postponed-senescence populations with respect to starvation resistance and desiccation resistance were obtained at all ages examined. Females from postponed-senescence populations had lower proportional water content than did females from control populations. Differences in water content cannot explain the greater desiccation resistance of flies from postponed-senescence populations. Genetically increased life span in these D. melanogaster populations appears to result proximally from greater resistance to mortality arising from environmental stress.
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Cites
Pleiotropy, natural selection, and the evolution of senescence
Williams, G. C. (1957) · Evolution · doi:10.2307/2406060 · Cited by 1,912
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Kirkwood, T. B. L., & Austad, S. N. (2000) · Nature · doi:10.1038/35041682 · Cited by 1,774
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Migliaccio, E., Giorgio, M., Mele, S., Pelicci, G., Reboldi, P., Pandolfi, P. P., Lanfrancone, L., & Pelicci, P. G. (1999) · Nature · doi:10.1038/46311 · Cited by 1,712
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Moskovitz, J., Bar-Noy, S., Williams, W. M., Requena, J., Berlett, B. S., & Stadtman, E. R. (2001) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.231472998 · Cited by 677
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Metadata
- Authors
- Service, P. M., Hutchinson, E. W., MacKinley, M. D., & Rose, M. R.
- Venue
- Physiological Zoology
- Publisher
- University of Chicago Press
- Published
- 1985-07
- Volume
- 58
- Issue
- 4
- Pages
- 380-389
- ISSN
- 0031-935X (ISSN-L)
- OpenAlex
- W2276074384
- Cited by
- 272
- References
- 1
- FWCI
- 3.61
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Resistance to Environmental Stress in Drosophila melanogaster Selected for Postponed Senescence. https://app.cochat.ai/papers/10.1086/physzool.58.4.30156013
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- Service, P. M., Hutchinson, E. W., MacKinley, M. D., & Rose, M. R. (1985). Resistance to Environmental Stress in Drosophila melanogaster Selected for Postponed Senescence. Physiological Zoology. https://doi.org/10.1086/physzool.58.4.30156013
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
