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Reactive Oxygen Species as Potential Drivers of the Seed Aging Process

1
Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035 Kórnik, Poland
2
Department of Biology, Technische Universität Darmstadt, D64287 Darmstadt, Germany
*
Authors to whom correspondence should be addressed.
Plants 2019, 8(6), 174; https://doi.org/10.3390/plants8060174
Received: 23 April 2019 / Revised: 24 May 2019 / Accepted: 30 May 2019 / Published: 14 June 2019
(This article belongs to the Special Issue Genetics of Seed Germination and Growth)
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Abstract

Seeds are an important life cycle stage because they guarantee plant survival in unfavorable environmental conditions and the transfer of genetic information from parents to offspring. However, similar to every organ, seeds undergo aging processes that limit their viability and ultimately cause the loss of their basic property, i.e., the ability to germinate. Seed aging is a vital economic and scientific issue that is related to seed resistance to an array of factors, both internal (genetic, structural, and physiological) and external (mainly storage conditions: temperature and humidity). Reactive oxygen species (ROS) are believed to initiate seed aging via the degradation of cell membrane phospholipids and the structural and functional deterioration of proteins and genetic material. Researchers investigating seed aging claim that the effective protection of genetic resources requires an understanding of the reasons for senescence of seeds with variable sensitivity to drying and long-term storage. Genomic integrity considerably affects seed viability and vigor. The deterioration of nucleic acids inhibits transcription and translation and exacerbates reductions in the activity of antioxidant system enzymes. All of these factors significantly limit seed viability. View Full-Text
Keywords: aging seeds; reactive oxygen species (ROS); antioxidant system; DNA damage; methylation aging seeds; reactive oxygen species (ROS); antioxidant system; DNA damage; methylation
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Kurek, K.; Plitta-Michalak, B.; Ratajczak, E. Reactive Oxygen Species as Potential Drivers of the Seed Aging Process. Plants 2019, 8, 174.

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