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Molecular aspects of flower senescence and strategies to improve flower longevity
Flower longevity is one of the most important traits for ornamental plants. Ethylene plays a crucial role in flower senescence in some plant species. In several species that show ethylene-dependent flower senescence, genetic modification targeting genes for ethylene biosynthesis or signaling has imp...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Japanese Society of Breeding
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5903976/ https://www.ncbi.nlm.nih.gov/pubmed/29681752 http://dx.doi.org/10.1270/jsbbs.17081 |
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author | Shibuya, Kenichi |
author_facet | Shibuya, Kenichi |
author_sort | Shibuya, Kenichi |
collection | PubMed |
description | Flower longevity is one of the most important traits for ornamental plants. Ethylene plays a crucial role in flower senescence in some plant species. In several species that show ethylene-dependent flower senescence, genetic modification targeting genes for ethylene biosynthesis or signaling has improved flower longevity. Although little is known about regulatory mechanisms of petal senescence in flowers that show ethylene-independent senescence, a recent study of Japanese morning glory revealed that a NAC transcription factor, EPHEMERAL1 (EPH1), is a key regulator in ethylene-independent petal senescence. EPH1 is induced in an age-dependent manner irrespective of ethylene signal, and suppression of EPH1 expression dramatically delays petal senescence. In ethylene-dependent petal senescence, comprehensive transcriptome analyses revealed the involvement of transcription factors, a basic helix-loop-helix protein and a homeodomain-leucine zipper protein, in the transcriptional regulation of the ethylene biosynthesis enzymes. This review summarizes molecular aspects of flower senescence and discusses strategies to improve flower longevity by molecular breeding. |
format | Online Article Text |
id | pubmed-5903976 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Japanese Society of Breeding |
record_format | MEDLINE/PubMed |
spelling | pubmed-59039762018-04-20 Molecular aspects of flower senescence and strategies to improve flower longevity Shibuya, Kenichi Breed Sci Review Flower longevity is one of the most important traits for ornamental plants. Ethylene plays a crucial role in flower senescence in some plant species. In several species that show ethylene-dependent flower senescence, genetic modification targeting genes for ethylene biosynthesis or signaling has improved flower longevity. Although little is known about regulatory mechanisms of petal senescence in flowers that show ethylene-independent senescence, a recent study of Japanese morning glory revealed that a NAC transcription factor, EPHEMERAL1 (EPH1), is a key regulator in ethylene-independent petal senescence. EPH1 is induced in an age-dependent manner irrespective of ethylene signal, and suppression of EPH1 expression dramatically delays petal senescence. In ethylene-dependent petal senescence, comprehensive transcriptome analyses revealed the involvement of transcription factors, a basic helix-loop-helix protein and a homeodomain-leucine zipper protein, in the transcriptional regulation of the ethylene biosynthesis enzymes. This review summarizes molecular aspects of flower senescence and discusses strategies to improve flower longevity by molecular breeding. Japanese Society of Breeding 2018-01 2018-02-27 /pmc/articles/PMC5903976/ /pubmed/29681752 http://dx.doi.org/10.1270/jsbbs.17081 Text en Copyright © 2018 by JAPANESE SOCIETY OF BREEDING http://creativecommons.org/licenses/by-nc-nd/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Review Shibuya, Kenichi Molecular aspects of flower senescence and strategies to improve flower longevity |
title | Molecular aspects of flower senescence and strategies to improve flower longevity |
title_full | Molecular aspects of flower senescence and strategies to improve flower longevity |
title_fullStr | Molecular aspects of flower senescence and strategies to improve flower longevity |
title_full_unstemmed | Molecular aspects of flower senescence and strategies to improve flower longevity |
title_short | Molecular aspects of flower senescence and strategies to improve flower longevity |
title_sort | molecular aspects of flower senescence and strategies to improve flower longevity |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5903976/ https://www.ncbi.nlm.nih.gov/pubmed/29681752 http://dx.doi.org/10.1270/jsbbs.17081 |
work_keys_str_mv | AT shibuyakenichi molecularaspectsofflowersenescenceandstrategiestoimproveflowerlongevity |