Fiziol. rast. genet. 2023, vol. 55, no. 5, 395-416, doi:

Participation of autophagy in the response of plants to the action of abiotic stressors

Guralchuk Zh.Z.1, Gurianov D.S.1,2

  1. Institute of Plant Physiology and Genetics, National Academy of Sciences of Ukraine 31/17 Vasylkivska St., Kyiv, 03022, Ukrainee
  2. Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine 150 Zabolotnogo St., Kyiv, 03143, Ukraine

The data on the process of plant autophagy, its importance for the functioning of plants under optimal and stressful conditions are reviewed. Autophagy, a highly intricate and conserved process, remains at a basal level under optimal conditions, and is induced when plants fall under stress. This process stands as one of the central mechanisms enabling plants to adapt to adverse environmental factors. The activation of autophagy in response to various abiotic stressors, encompassing extreme temperatures, salinity, drought, nutrient deprivation, and herbicides is discussed. The regulatory mechanisms of autophagy are thoroughly considered, encompassing post-translational protein modifications crucial for its activation and progression, transcriptional regulation, and signaling through phytohormones. The pivotal role of autophagy activation is underscored in eliminating damaged organelles, and providing vital nutrients required for plant functionality and survival when exposed to abiotic stressors. Furthermore, the potential involvement of autophagy in herbicide-induced pathogenesis is discussed, with a dual perspective: its potential role in regulating programmed cell death (PCD), and its role in mitigating herbicide effects through the plant’s homeostatic resistance mechanisms.

Keywords: autophagy, abiotic factors, herbicides

Fiziol. rast. genet.
2023, vol. 55, no. 5, 395-416

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