Protein patterns in rotifers: the timing of aging
Single rotifer individuals have been characterized biochemically to obtain a fingerprint of their physiological state using a modified ultrasensitive silver-stain procedure to detect total proteins in polyacrylamide gels. Patterns are completely uniform for young isogenic individuals raised in the same culture, but they start to change when these individuals reach a certain age. This age is close to the mean lifespan and to both the cessation of body growth and reproduction. Variability is greatest among individuals of the same chronological age, thus the rate of aging is different even among individuals having identical genotypes and experiencing the same environment.
Key wordsaging rotifers protein electroforetic patterns individual growth
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- Aronovich, T. M. & L. V. Spektorova, 1974. Survival and fecundity of Brachionus calyciflorus in water of different salinities. Hydrobiol. J. 10: 71–74.Google Scholar
- Finch, C. E., 1987.The ordely decay of order in the regulation of aging processes. In F. E. Yates (ed.), Self-organizing systems. The emergence of order. Plenum Press, New York: 213–236.Google Scholar
- Lints, F. A., 1978. Genetics and aging, Interdisciplinary Topics in Gerontology-Karger, S., Basel 129 pp.Google Scholar
- Semancik, J. S., 1976. Structure and replication of plants viroids. In: Animal Virology, ICN-UCLA, Symposia on Molecular and cellular Biology. Baltimore, D., A. S. Huang & C. F. Fox (eds.), pp. 529–545 Acad. Press, New York: 523–545.Google Scholar
- Serra, M., 1987. Variación morfométrica, isoenzimática y demográfica en poblaciones de Brachionus plicatilis: diferenciación genética y plasticidad fenotípica. Ph. D. Thesis, Universidad de Valencia.Google Scholar
- Serra, M. & M. R. Miracle, 1985. Enzyme polymorphism in Brachionus plicatilis populations from several Spanish lagoons. Verh. int. Ver. Limnol. 22: 2991–2996.Google Scholar