Abstract
THE synthesis of blood proteins in the female adult Periplaneta americana has been described in relation to the ovarian cycle and its control by hormones1. Much of the interpretation rests on measurements of blood protein by the method of Lowry et al.2, which suggest the existence of cyclical changes in the concentration of blood proteins. The purpose of the present communication is to show that these changes are probably artefacts, and to make it more widely known that this method for chemical estimation may be generally unsuited to the measurement of insect blood proteins.
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References
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Lowry, O. H., Rosebrough, N. J., Farr, A. H., and Randall, R. J., J. Biol. Chem., 193, 265 (1951).
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PRATT, G. Association of Folin-positive Material with the Blood Proteins of the American Cockroach and the Oviposition Cycle. Nature 214, 1034–1035 (1967). https://doi.org/10.1038/2141034b0
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DOI: https://doi.org/10.1038/2141034b0
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