title: Oxidative stress-induced autophagy in plants: the role of mitochondria.
abstract: The strictly regulated removal of oxidized structures is a universal stress response of eukaryotic cells that targets damaged or toxic components for vacuolar or lysosomal degradation. Autophagy stands at the crossroad between cell survival and death. It promotes survival by degrading proteins and organelles damaged during oxidative stress, but it is also activated as a part of death programs, when the damage cannot be overcome. Evidence is accumulating that the cellular sites of ROS production and signaling may be primary targets of autophagy. Therefore, autophagosomal targeting of mitochondria (mitophagy) is of particular importance. Mitophagy is a selective process that can specifically target dysfunctional mitochondria, but also mitophagy may play a role in controlling the number and quality of mitochondria during stress. Here we review the mechanisms of both non-specific autophagy and mitochondrial targeting in plants, drawing analogies and emphasizing differences with yeast and mammalian systems.
authors.affiliation: Kazan Institute of Biochemistry and Biophysics, Russian Academy of Sciences, PO Box 30, Kazan 420111, Russian Federation. minibayeva@mail.knc.ru
authors.forename: Farida
authors.initials: F
authors.lastname: Minibayeva
authors.forename: Svetlana
authors.initials: S
authors.lastname: Dmitrieva
authors.forename: Anastasia
authors.initials: A
authors.lastname: Ponomareva
authors.forename: Victoria
authors.initials: V
authors.lastname: Ryabovol
mesh_terms: D001343:Autophagy / Q000502:physiology*; D016923:Cell Death; D008928:Mitochondria / Q000502:physiology*; D063306:Mitophagy / Q000502:physiology*; D018384:Oxidative Stress / Q000502:physiology*; D018521:Plant Physiological Phenomena; D010944:Plants / Q000648:ultrastructure; D017382:Reactive Oxygen Species / Q000378:metabolism; D015398:Signal Transduction / Q000502:physiology*
chemical_list: D017382:Reactive Oxygen Species