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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jbsc/002/02/0087-0098

    • Keywords

       

      Fish; salinity adaptations; muscle mitochondria; respiratory status; calcium uptake; swelling and contraction

    • Abstract

       

      The functional status of fish muscle mitochondria during exposure of the organism to salinity stress was studied. No alterations were observed in the substrate oxidation capacity. However, the mitochondria appear to be in an uncoupled state during the first few days of exposure and recover thereafter. This could be correlated to high endogenous Ca2+ levels in the mitochondria in the early period. A Na+-Ca2+ antiport in these mitochondria is shown. Evidence is also presented to show that the mitochondria isolated during the early stages of stress are in a swollen state and are unable to contract on addition of ATP and Mg2+ Continued exposure to the stress, however, reverses the situation.

    • Author Affiliations

       

      Indu Bashyam1 Suresh Narayan1 J Jayaraman1

      1. Department of Biochemistry, School of Biological Sciences, Madurai Kamaraj University, Madurai - 625 021

    • Dates

       
      Published
      June 1980
      Manuscript received
      3 November 1979
      Manuscript revised
      8 March 1980

  • Journal of Biosciences | News

      Forthcoming Special issue.


    • To trigger further research on plant mitochondria, the Journal of Biosciences is bringing out a special issue titled "Plant Mitochondria: Properties and Interactions with Other Organelles".


      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.


      Submissions are welcome until 30 July 2023. The contributions can be original articles, short communications, reviews, or mini-reviews on any topic related to plant mitochondria.


      Authors can submit their articles online at https://www.editorialmanager.com/jbsc/default2.aspx

      Posted on April 12, 2023
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    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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