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Lost in Translation: Physiological Roles of Stored mRNAs in Seed Germination
Seeds characteristics such as germination ability, dormancy, and storability/longevity are important traits in agriculture, and various genes have been identified that are involved in its regulation at the transcriptional and post-transcriptional level. A particularity of mature dry seeds is a speci...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7154877/ https://www.ncbi.nlm.nih.gov/pubmed/32164149 http://dx.doi.org/10.3390/plants9030347 |
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author | Sano, Naoto Rajjou, Loïc North, Helen M. |
author_facet | Sano, Naoto Rajjou, Loïc North, Helen M. |
author_sort | Sano, Naoto |
collection | PubMed |
description | Seeds characteristics such as germination ability, dormancy, and storability/longevity are important traits in agriculture, and various genes have been identified that are involved in its regulation at the transcriptional and post-transcriptional level. A particularity of mature dry seeds is a special mechanism that allows them to accumulate more than 10,000 mRNAs during seed maturation and use them as templates to synthesize proteins during germination. Some of these stored mRNAs are also referred to as long-lived mRNAs because they remain translatable even after seeds have been exposed to long-term stressful conditions. Mature seeds can germinate even in the presence of transcriptional inhibitors, and this ability is acquired in mid-seed development. The type of mRNA that accumulates in seeds is affected by the plant hormone abscisic acid and environmental factors, and most of them accumulate in seeds in the form of monosomes. Release of seed dormancy during after-ripening involves the selective oxidation of stored mRNAs and this prevents translation of proteins that function in the suppression of germination after imbibition. Non-selective oxidation and degradation of stored mRNAs occurs during long-term storage of seeds so that the quality of stored RNAs is linked to the degree of seed deterioration. After seed imbibition, a population of stored mRNAs are selectively loaded into polysomes and the mRNAs, involved in processes such as redox, glycolysis, and protein synthesis, are actively translated for germination. |
format | Online Article Text |
id | pubmed-7154877 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-71548772020-04-21 Lost in Translation: Physiological Roles of Stored mRNAs in Seed Germination Sano, Naoto Rajjou, Loïc North, Helen M. Plants (Basel) Review Seeds characteristics such as germination ability, dormancy, and storability/longevity are important traits in agriculture, and various genes have been identified that are involved in its regulation at the transcriptional and post-transcriptional level. A particularity of mature dry seeds is a special mechanism that allows them to accumulate more than 10,000 mRNAs during seed maturation and use them as templates to synthesize proteins during germination. Some of these stored mRNAs are also referred to as long-lived mRNAs because they remain translatable even after seeds have been exposed to long-term stressful conditions. Mature seeds can germinate even in the presence of transcriptional inhibitors, and this ability is acquired in mid-seed development. The type of mRNA that accumulates in seeds is affected by the plant hormone abscisic acid and environmental factors, and most of them accumulate in seeds in the form of monosomes. Release of seed dormancy during after-ripening involves the selective oxidation of stored mRNAs and this prevents translation of proteins that function in the suppression of germination after imbibition. Non-selective oxidation and degradation of stored mRNAs occurs during long-term storage of seeds so that the quality of stored RNAs is linked to the degree of seed deterioration. After seed imbibition, a population of stored mRNAs are selectively loaded into polysomes and the mRNAs, involved in processes such as redox, glycolysis, and protein synthesis, are actively translated for germination. MDPI 2020-03-10 /pmc/articles/PMC7154877/ /pubmed/32164149 http://dx.doi.org/10.3390/plants9030347 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Sano, Naoto Rajjou, Loïc North, Helen M. Lost in Translation: Physiological Roles of Stored mRNAs in Seed Germination |
title | Lost in Translation: Physiological Roles of Stored mRNAs in Seed Germination |
title_full | Lost in Translation: Physiological Roles of Stored mRNAs in Seed Germination |
title_fullStr | Lost in Translation: Physiological Roles of Stored mRNAs in Seed Germination |
title_full_unstemmed | Lost in Translation: Physiological Roles of Stored mRNAs in Seed Germination |
title_short | Lost in Translation: Physiological Roles of Stored mRNAs in Seed Germination |
title_sort | lost in translation: physiological roles of stored mrnas in seed germination |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7154877/ https://www.ncbi.nlm.nih.gov/pubmed/32164149 http://dx.doi.org/10.3390/plants9030347 |
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