Letter | Published:

Effect on Aphid Feeding of Dietary Methionine

Naturevolume 214page386 (1967) | Download Citation



RECENT behavioural and nutritional investigations on Myzus persicae (Sulzer) fed and reared on synthetic diets have shown that the sucrose concentration and the overall level of the twenty amino-acids in the diet markedly affect the rate of ingestion of the diet1 as well as the rate of growth of the aphid2. Specifically with respect to the amino-acids, diets with a total amino-acid concentration of less than 1 per cent were fed on minimally and supported only poor or no growth. Rates of uptake and growth increased as the concentration was increased to 3.0 per cent; but whereas uptake declined somewhat, the growth rate continued to increase beyond that level to 4.8 per cent, the highest concentration tested.

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  1. 1

    Mittler, T. E., Entomol. Exp. App. (in the press).

  2. 2

    Dadd, R. H., and Mittler, T. E., J. Insect Physiol., 11, 717 (1965).

  3. 3

    Dadd, R. H., and Krieger, D. L., J. Insect Physiol. (in the press).

  4. 4

    Strong, F. E., and Sakamato, S. S., J. Insect Physiol., 9, 875 (1963).

  5. 5

    Mittler, T. E., and Dadd, R . H., Entomol. Exp. App., 7, 315 (1964).

  6. 6

    Mittler, T. E., Entomol. Exp. App. (in the press).

  7. 7

    Auclair, J. L., Ann. Entomol. Soc. Amer., 58, 855 (1965).

  8. 8

    Mittler, T. E., and Dadd, R. H., Ann. Entomol. Soc. Amer., 59, 1162 (1966).

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  1. Division of Entomology, University of California, Berkeley, California

    • T. E. MITTLER


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