Degradation of Organelles or Specific Organelle Components via Selective Autophagy in Plant Cells
Department of Plant Science, the Weizmann Institute of Science, Rehovot 76100, Israel
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Int. J. Mol. Sci. 2014, 15(5), 7624-7638; https://doi.org/10.3390/ijms15057624
Received: 16 March 2014
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Revised: 31 March 2014
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Accepted: 16 April 2014
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Published: 5 May 2014
(This article belongs to the Special Issue Plant Cell Compartmentation and Volume Control)
Macroautophagy (hereafter referred to as autophagy) is a cellular mechanism dedicated to the degradation and recycling of unnecessary cytosolic components by their removal to the lytic compartment of the cell (the vacuole in plants). Autophagy is generally induced by stresses causing energy deprivation and its operation occurs by special vesicles, termed autophagosomes. Autophagy also operates in a selective manner, recycling specific components, such as organelles, protein aggregates or even specific proteins, and selective autophagy is implicated in both cellular housekeeping and response to stresses. In plants, selective autophagy has recently been shown to degrade mitochondria, plastids and peroxisomes, or organelle components such as the endoplasmic-reticulum (ER) membrane and chloroplast-derived proteins such as Rubisco. This ability places selective-autophagy as a major factor in cellular steady-state maintenance, both under stress and favorable environmental conditions. Here we review the recent advances documented in plants for this cellular process and further discuss its impact on plant physiology.
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Keywords:
Arabidopsis; selective-autophagy; autophagosome; ATG8; reticulophagy; chlorophagy; pexophagy; mitophagy; rubisco-containing bodies; plant organelles; vacuole; degradation
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MDPI and ACS Style
Michaeli, S.; Galili, G. Degradation of Organelles or Specific Organelle Components via Selective Autophagy in Plant Cells. Int. J. Mol. Sci. 2014, 15, 7624-7638. https://doi.org/10.3390/ijms15057624
AMA Style
Michaeli S, Galili G. Degradation of Organelles or Specific Organelle Components via Selective Autophagy in Plant Cells. International Journal of Molecular Sciences. 2014; 15(5):7624-7638. https://doi.org/10.3390/ijms15057624
Chicago/Turabian StyleMichaeli, Simon, and Gad Galili. 2014. "Degradation of Organelles or Specific Organelle Components via Selective Autophagy in Plant Cells" International Journal of Molecular Sciences 15, no. 5: 7624-7638. https://doi.org/10.3390/ijms15057624
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