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    • The effect of exposure to low temperature on the metabolism of carbohydrates, lipids and protein in the larvae ofPhilosamia ricini

      Radha Pant Dwijendra K Gupta

      Volume 1 Issue 4 December 1979 pp 441-446

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jbsc/001/04/0441-0446

    • Keywords

       

      Cryoprotection; cold exposure; Philosamia ricini; carbohydrates; protein; lipids; triacylglycerols; lipases

    • Abstract

       

      Exposure of the silkworm(Philosamia ricini) larvae to cold temperature (2‡C) and subsequent exposure to room temperature (29‡ C) resulted in the mortality of the larvae.

      Cold exposure brought about significant decrease in enzymic activity of proteases, aminotransferases, diacylglycerol lipase and in the amounts of some haemolymph sugars and polyols. However, glycerol increased sharply in response to severe cold exposure. There was also a marked increase in the levels of protein, pyruvate, total free amino acids, total lipid, phospholipid and triacylglycerols.

      In the colder environment, carbohydrates served as the energy source. Glycerol appears to have conferred cryoprotection to the cold-stressedPhilosamia ricini larvae.

    • Author Affiliations

       

      Radha Pant1 Dwijendra K Gupta1

      1. Department of Biochemistry, University of Allahabad, Allahabad - 211 002

    • Dates

       
      Published
      December 1979
      Manuscript received
      2 July 1979
      Manuscript revised
      27 August 1979

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      Plant mitochondria are quite distinct and have unique features, such as a cyanide-insensitive alternate pathway. They also interact with chloroplasts to optimize photosynthetic carbon assimilation.


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