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Transcuticular Uptake of Glucose by the Entomophilic Nematode, Mermis nigrescens

T. A. Rutherford and J. M. Webster
The Journal of Parasitology
Vol. 60, No. 5 (Oct., 1974), pp. 804-808
DOI: 10.2307/3278905
Stable URL: http://www.jstor.org/stable/3278905
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Transcuticular Uptake of Glucose by the Entomophilic Nematode, Mermis nigrescens
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Abstract

Mermis nigrescens (Nematoda; Mermithidae) larvae were removed from the hemocoel of their desert locust host, Schistocerca gregaria (Orthoptera; Acrididae), 14 and 21 days after infection and placed in a medium containing either 14C-glucose or 14C-trehalose. The 14-day-old larvae preferentially take up glucose and do so faster than 21-day-old larvae. Trehalose, the major blood carbohydrate of the host, is not taken up by the larvae. In vitro the larvae take up glucose through the cuticle surface and it is hypothesized, on the basis of experiments using the inhibitors 2,4-dinitrophenol and phloretin, that the absorption of glucose is mediated by a transport system.

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