• Nithyakalyani Raghavan

      Articles written in Journal of Biosciences

    • Mitochondrial RNA metabolism during mitochondriogenesis in yeast

      Nithyakalyani Raghavan J Jayaraman

      More Details Abstract Fulltext PDF

      Mitochondrial transcription has been studied as a function of mitochondriogenesis in yeast cells. Two systems have been used: synchronously growing cells and cells subjected to glucose repression followed by derepression. Maximal RNA synthesis has been found in the S phase of the cell cycle and during the ‘repressed’ phase in asynchronous cells. Activities of RNA polymerase, poly A polymerase and incorporation of [32P]-into RNAin vitro are maximal at the same period. Gel analysis reveals the presence of some high molecular weight RNA species which are likely to be precursors. When chase experiments are carried out in the presence of excess glucose, the high molecular weight species remain unaffected, suggesting that RNA processing may be an important site of action of glucose repression

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    • 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.

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      Posted on April 12, 2023
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