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Physiology of low temperature acclimation in tropical poikilotherms

III. Quantitative changes in the bound and free amino acids in the earthworm,Lampito mauritii

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Proceedings / Indian Academy of Sciences

Summary

1. A quantitative chromatographic analysis of the free and bound aminoacids of warm-(36° C.) and cold-(20° C.) acclimated earthworms (Lampito mauritii) was carried out.

2. Cold acclimation resulted in a decrease in the free amino acids and increase in the bound amino acids, while warm acclimation resulted in an increase in free amino acids and decrease in bound amino acids.

3. It is suggested that there is increased protein synthetic activity in cold acclimation. The turnover of proteins by catabolic release of bound amino acids and resynthesis is envisaged to result in changes in enzyme systems. The patterns of protein turnover appear to be different in cold- and warm-acclimated worms.

4. Changes observed in the individual amino acids like lysine, arginine, aspartic acid, glutamic acid and the phenolic amino acids are discussed in the light of our present knowledge on amino acid metabolism.

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Authors and Affiliations

  1. Department of Zoology, Sri Venkateswara University, Tirupati, India

    S. Raghupathiramireddy & Kandula Pampapathi Rao

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  1. S. Raghupathiramireddy
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  2. Kandula Pampapathi Rao
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Communicated by Dr. H. Srinivasa Rao,f.a.sc.

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Raghupathiramireddy, S., Pampapathi Rao, K. Physiology of low temperature acclimation in tropical poikilotherms. Proc. Indian Acad. Sci. 58, 1–10 (1963). https://doi.org/10.1007/BF03052065

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  • DOI: https://doi.org/10.1007/BF03052065

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