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Flowers, H.M., Department of Biophysics, The Weizmami Institute of Science, Rehovot, Israel
Meisner, J., Department of Toxicology, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Ascher, K.R.S., Department of Toxicology, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
1. 1. Spodoptera littoralis larvae were fed phagostimulatory weak or inactive sugars, offered alone or mixed with sucrose, on Styropor lamellae in no-choice experiments. 2. 2. The feces were examined for the presence of ingested sugars: only l-fucose, methyl α-d-gluco-pyranoside and methyl α-l-fucopyranoside could be found, with recovery rates being higher when mixtures with sucrose were fed. A considerable portion of the excreted fucose was in bound form. 3. 3. The availability of water had no marked influence on the ratio of excreted-to-ingested sugar, except with fucose-sucrose mixtures, where almost all the fucose ingested could be accounted for-in free+bound form-in the feces. © 1975.
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The feeding response of the larva of the Egyptian cotton leafworm, Spodoptera littoralis boisd., to sugars and related compounds-IV. Ingestion and excretion of some phagostimulatory weak or inactive carbohydrates
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Flowers, H.M., Department of Biophysics, The Weizmami Institute of Science, Rehovot, Israel
Meisner, J., Department of Toxicology, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Ascher, K.R.S., Department of Toxicology, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
The feeding response of the larva of the Egyptian cotton leafworm, Spodoptera littoralis boisd., to sugars and related compounds-IV. Ingestion and excretion of some phagostimulatory weak or inactive carbohydrates
1. 1. Spodoptera littoralis larvae were fed phagostimulatory weak or inactive sugars, offered alone or mixed with sucrose, on Styropor lamellae in no-choice experiments. 2. 2. The feces were examined for the presence of ingested sugars: only l-fucose, methyl α-d-gluco-pyranoside and methyl α-l-fucopyranoside could be found, with recovery rates being higher when mixtures with sucrose were fed. A considerable portion of the excreted fucose was in bound form. 3. 3. The availability of water had no marked influence on the ratio of excreted-to-ingested sugar, except with fucose-sucrose mixtures, where almost all the fucose ingested could be accounted for-in free+bound form-in the feces. © 1975.
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