Reactive Oxygen Species (ROS) and Nucleic Acid Modifications during Seed Dormancy
The seed is the propagule of higher plants and allows its dissemination and the survival of the species. Seed dormancy prevents premature germination under favourable conditions. Dormant seeds are only able to germinate in a narrow range of conditions. During after-ripening (AR), a mechanism of dorm...
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| Format: | Article |
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MDPI AG
2020-05-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/9/6/679 |
| _version_ | 1797566914149482496 |
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| author | Kai Katsuya-Gaviria Elena Caro Néstor Carrillo-Barral Raquel Iglesias-Fernández |
| author_facet | Kai Katsuya-Gaviria Elena Caro Néstor Carrillo-Barral Raquel Iglesias-Fernández |
| author_sort | Kai Katsuya-Gaviria |
| collection | DOAJ |
| description | The seed is the propagule of higher plants and allows its dissemination and the survival of the species. Seed dormancy prevents premature germination under favourable conditions. Dormant seeds are only able to germinate in a narrow range of conditions. During after-ripening (AR), a mechanism of dormancy release, seeds gradually lose dormancy through a period of dry storage. This review is mainly focused on how chemical modifications of mRNA and genomic DNA, such as oxidation and methylation, affect gene expression during late stages of seed development, especially during dormancy. The oxidation of specific nucleotides produced by reactive oxygen species (ROS) alters the stability of the seed stored mRNAs, being finally degraded or translated into non-functional proteins. DNA methylation is a well-known epigenetic mechanism of controlling gene expression. In <i>Arabidopsis thaliana</i>, while there is a global increase in CHH-context methylation through embryogenesis, global DNA methylation levels remain stable during seed dormancy, decreasing when germination occurs. The biological significance of nucleic acid oxidation and methylation upon seed development is discussed. |
| first_indexed | 2024-03-10T19:34:10Z |
| format | Article |
| id | doaj.art-de37f82bae0448a0b98dbf2b4b8cc52e |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-10T19:34:10Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-de37f82bae0448a0b98dbf2b4b8cc52e2023-11-20T01:56:35ZengMDPI AGPlants2223-77472020-05-019667910.3390/plants9060679Reactive Oxygen Species (ROS) and Nucleic Acid Modifications during Seed DormancyKai Katsuya-Gaviria0Elena Caro1Néstor Carrillo-Barral2Raquel Iglesias-Fernández3Centro de Biotecnología y Genómica de Plantas-Severo Ochoa (CBGP, UPM-INIA), Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223-Pozuelo de Alarcón, SpainCentro de Biotecnología y Genómica de Plantas-Severo Ochoa (CBGP, UPM-INIA), Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223-Pozuelo de Alarcón, SpainDepartamento de Fisiología Vegetal, Facultad de Ciencias, Universidad da Coruña (UdC), 15008-A Coruña, SpainCentro de Biotecnología y Genómica de Plantas-Severo Ochoa (CBGP, UPM-INIA), Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223-Pozuelo de Alarcón, SpainThe seed is the propagule of higher plants and allows its dissemination and the survival of the species. Seed dormancy prevents premature germination under favourable conditions. Dormant seeds are only able to germinate in a narrow range of conditions. During after-ripening (AR), a mechanism of dormancy release, seeds gradually lose dormancy through a period of dry storage. This review is mainly focused on how chemical modifications of mRNA and genomic DNA, such as oxidation and methylation, affect gene expression during late stages of seed development, especially during dormancy. The oxidation of specific nucleotides produced by reactive oxygen species (ROS) alters the stability of the seed stored mRNAs, being finally degraded or translated into non-functional proteins. DNA methylation is a well-known epigenetic mechanism of controlling gene expression. In <i>Arabidopsis thaliana</i>, while there is a global increase in CHH-context methylation through embryogenesis, global DNA methylation levels remain stable during seed dormancy, decreasing when germination occurs. The biological significance of nucleic acid oxidation and methylation upon seed development is discussed.https://www.mdpi.com/2223-7747/9/6/679after-ripeningDNA methylationoxidationRNA stabilityseed dormancyseed vigour |
| spellingShingle | Kai Katsuya-Gaviria Elena Caro Néstor Carrillo-Barral Raquel Iglesias-Fernández Reactive Oxygen Species (ROS) and Nucleic Acid Modifications during Seed Dormancy Plants after-ripening DNA methylation oxidation RNA stability seed dormancy seed vigour |
| title | Reactive Oxygen Species (ROS) and Nucleic Acid Modifications during Seed Dormancy |
| title_full | Reactive Oxygen Species (ROS) and Nucleic Acid Modifications during Seed Dormancy |
| title_fullStr | Reactive Oxygen Species (ROS) and Nucleic Acid Modifications during Seed Dormancy |
| title_full_unstemmed | Reactive Oxygen Species (ROS) and Nucleic Acid Modifications during Seed Dormancy |
| title_short | Reactive Oxygen Species (ROS) and Nucleic Acid Modifications during Seed Dormancy |
| title_sort | reactive oxygen species ros and nucleic acid modifications during seed dormancy |
| topic | after-ripening DNA methylation oxidation RNA stability seed dormancy seed vigour |
| url | https://www.mdpi.com/2223-7747/9/6/679 |
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