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Changes in mitochondrial shape in wheat root cells exposed to mitochondrial poisons

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Abstract

It is found that mitochondrial poisons not only modify the functional activity of the organelles but also change the shape of some mitochondria. The ring-shaped organelles were found to appear in root cells of 5- to 6-day-old seedlings of spring wheat (Triticum aestivum L., cvs. Moskovskaya 35 and Lyuba). Using a technique of serial sections, we have shown that the circular profiles of mitochondria within the cell correspond in most cases to bowl-shaped organelles. Spatial reorganization of mitochondria did not depend directly on the respiration rate, duration of exposure to inhibitors, and inhibitor specificity. These observations indicate the reversibility of spatial rearrangements and general nonspecific nature of the detected morphological changes.

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Abbreviations

CCCP:

carbonyl cyanide 3-chlorophenylhydrazone

ETC:

electron transport chain

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Authors and Affiliations

  1. Kazan Institute of Biochemistry and Biophysics, Kazan Research Center, Russian Academy of Sciences, ul. Lobachevskogo 2/31, POB 30, Kazan, Tatarstan, 420111, Russia

    A. A. Ponomareva & O. O. Polygalova

Authors
  1. A. A. Ponomareva
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  2. O. O. Polygalova
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Correspondence to A. A. Ponomareva.

Additional information

Original Russian Text © A.A. Ponomareva, O.O. Polygalova, 2012, published in Fiziologiya Rastenii, 2012, Vol. 59, No. 3, pp. 466–471.

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Ponomareva, A.A., Polygalova, O.O. Changes in mitochondrial shape in wheat root cells exposed to mitochondrial poisons. Russ J Plant Physiol 59, 428–433 (2012). https://doi.org/10.1134/S1021443712030144

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  • DOI: https://doi.org/10.1134/S1021443712030144

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