Abstract
Ball, Dyke and Wilkins1 and Wilkins2 developed an apparatus, incorporating an infra-red gas analyser (Grubb-Parsons, S.B.1), for continuously estimating the rate of carbon dioxide metabolism of plant tissue maintained under constant external conditions for 5–10 days. Using this apparatus the rate of carbon dioxide output of individual adult cockroaches was determined. The insects were kept in 12 : 12 hr. alternations of light and darkness and, at the commencement of an experiment., were transferred to a small flask which was placed in darkness and at a constant temperature at the end of a light period. The records presented here were derived from one insect, but five other cockroaches gave closely similar results.
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References
Ball, N. G., Dyke, I., and Wilkins, M. B. J. Exp. Bot., 8, 339 (1957).
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Levy, R. I., and Schneiderman, H. A., Nature, 18, 491 (1958).
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WILKINS, M. A Temperature-dependent Endogenous Rhythm in the Rate of Carbon Dioxide Output of Periplaneta americana . Nature 185, 481–482 (1960). https://doi.org/10.1038/185481b0
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DOI: https://doi.org/10.1038/185481b0
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