Genes 2019, 10(4), 267; https://doi.org/10.3390/genes10040267
The Role and Regulation of Autophagy and the Proteasome During Aging and Senescence in Plants
Institute of Biology I, RWTH Aachen University, 52074 Aachen, Germany
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Received: 7 February 2019 / Revised: 6 March 2019 / Accepted: 27 March 2019 / Published: 2 April 2019
(This article belongs to the Special Issue Genetics of Plant Senescence)
Abstract
Aging and senescence in plants has a major impact on agriculture, such as in crop yield, the value of ornamental crops, and the shelf life of vegetables and fruits. Senescence represents the final developmental phase of the leaf and inevitably results in the death of the organ. Still, the process is completely under the control of the plant. Plants use their protein degradation systems to maintain proteostasis and transport or salvage nutrients from senescing organs to develop reproductive parts. Herein, we present an overview of current knowledge about the main protein degradation pathways in plants during senescence: The proteasome and autophagy. Although both pathways degrade proteins, autophagy appears to prevent aging, while the proteasome functions as a positive regulator of senescence. View Full-TextKeywords:
aging; senescence; autophagy; proteasome; plants
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Wang, H.; Schippers, J.H.M. The Role and Regulation of Autophagy and the Proteasome During Aging and Senescence in Plants. Genes 2019, 10, 267.
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