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Korean J Parasitol > Volume 3(1):1965 > Article

Original Article
Korean J Parasitol. 1965 Jun;3(1):1-4. English.
Published online Mar 20, 1994.  http://dx.doi.org/10.3347/kjp.1965.3.1.1
Copyright © 1965 by The Korean Society for Parasitology
Metabolism of C14-glucose by plerocercoid of Diphyllobothrium sp.
Byong Seol Seo,Han Jong Rim,Sang Il Lee,Sang Don Rhee,Wha Suk Lee and Jae Ryong Lee
Department of Parasitology and Institute of Endemic Diseases, College of Medicine, Seoul National University, Korea.
Department of Physiology, College of Medicine, Seoul National University, Korea.
Abstract

1. The glucose uptake rate by plerocercoid of Diphyllobothrium sp. was a mean value of 5.35±0.80 µM/hr/g of wet wt, and total CO2 production rates by the plerocercoid larva averaged 7.54±0.73 µM/hr/g of wet wt. The relative specific activity into respiratory CO2 showed a mean value of 7.30 ±0.90 per cent. The rate of CO2 production derived from medium C14-glucose was a mean of 0.58±0.13 µM/hr/g of wet wt. Therefore, the average value of 1.92±0.38 per cent of glucose utilized by the larvae from the medium C14-glucose was oxidized to respiratory CO2.

2. The tissue concentration of glycogen in plerocercoid larva was a mean of 46.28 ±2.23 mg/g or 4.63±0.22 per cent/g of wet wt., and the turnover rate of glycogen pool was a mean of 0.049 ± 0.012 %/hr or 0.010 ± 0.003 mg/hr/g of wet wt. The average value of 2.76±1.00 per cent of glucose utilized by the larvae from the medium C14-glucose was incorporated to the glycogen.

3. These data accounts for that only 5 per cent of the utilized glucose by the plerocercoid larvae participated in furnishing the oxidation into respiratory CO2 and the synthetic process into glycogen.

Tables


Table 1
The glucose uptake rate and conversion of C14-glucose into respiratory CO2.


Table 2
The tissue concentration of glycogen and conversion of C14-glucose into glycogen.

References
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