Ethylene, a key factor in the regulation of seed dormancy
Ethylene is an important component of the gaseous environment, and regulates numerous plant developmental processes including seed germination and seedling establishment. Dormancy, the inability to germinate in apparently favorable conditions, has been demonstrated to be regulated by the hormonal ba...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2014-10-01
|
| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00539/full |
| _version_ | 1819161755163557888 |
|---|---|
| author | Françoise eCORBINEAU Qiong eXia Christophe eBailly Hayat eEl-Maarouf-Bouteau |
| author_facet | Françoise eCORBINEAU Qiong eXia Christophe eBailly Hayat eEl-Maarouf-Bouteau |
| author_sort | Françoise eCORBINEAU |
| collection | DOAJ |
| description | Ethylene is an important component of the gaseous environment, and regulates numerous plant developmental processes including seed germination and seedling establishment. Dormancy, the inability to germinate in apparently favorable conditions, has been demonstrated to be regulated by the hormonal balance between abscisic acid (ABA) and gibberellins (GAs). Ethylene plays a key role in dormancy release in numerous species, the effective concentrations allowing the germination of dormant seeds ranging between 0.1 and 200 μL L-1. Studies using inhibitors of ethylene biosynthesis or of ethylene action and analysis of mutant lines altered in genes involved in the ethylene signaling pathway (etr1, ein2, ain1, etr1, and erf1) demonstrate the involvement of ethylene in the regulation of germination and dormancy. Ethylene counteracts ABA effects through a regulation of ABA metabolism and signaling pathways. Moreover, ethylene insensitive mutants in Arabidopsis are more sensitive to ABA and the seeds are more dormant. Numerous data also show an interaction between ABA, GAs and ethylene metabolism and signaling pathways. It has been increasingly demonstrated that reactive oxygen species (ROS) may play a significant role in the regulation of seed germination interacting with hormonal signaling pathways. In the present review the responsiveness of seeds to ethylene will be described, and the key role of ethylene in the regulation of seed dormancy via a cross-talk between hormones and other signals will be discussed. |
| first_indexed | 2024-12-22T17:17:23Z |
| format | Article |
| id | doaj.art-b0852a1309c94255850e2ad472655922 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-22T17:17:23Z |
| publishDate | 2014-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-b0852a1309c94255850e2ad4726559222022-12-21T18:18:55ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2014-10-01510.3389/fpls.2014.00539113486Ethylene, a key factor in the regulation of seed dormancyFrançoise eCORBINEAU0Qiong eXia1Christophe eBailly2Hayat eEl-Maarouf-Bouteau3University Pierre et Marie CurieUniversity Pierre et Marie CurieUniversity Pierre et Marie CurieUniversity Pierre et Marie CurieEthylene is an important component of the gaseous environment, and regulates numerous plant developmental processes including seed germination and seedling establishment. Dormancy, the inability to germinate in apparently favorable conditions, has been demonstrated to be regulated by the hormonal balance between abscisic acid (ABA) and gibberellins (GAs). Ethylene plays a key role in dormancy release in numerous species, the effective concentrations allowing the germination of dormant seeds ranging between 0.1 and 200 μL L-1. Studies using inhibitors of ethylene biosynthesis or of ethylene action and analysis of mutant lines altered in genes involved in the ethylene signaling pathway (etr1, ein2, ain1, etr1, and erf1) demonstrate the involvement of ethylene in the regulation of germination and dormancy. Ethylene counteracts ABA effects through a regulation of ABA metabolism and signaling pathways. Moreover, ethylene insensitive mutants in Arabidopsis are more sensitive to ABA and the seeds are more dormant. Numerous data also show an interaction between ABA, GAs and ethylene metabolism and signaling pathways. It has been increasingly demonstrated that reactive oxygen species (ROS) may play a significant role in the regulation of seed germination interacting with hormonal signaling pathways. In the present review the responsiveness of seeds to ethylene will be described, and the key role of ethylene in the regulation of seed dormancy via a cross-talk between hormones and other signals will be discussed.http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00539/fullAbscisic AcidGibberellinsReactive Oxygen Speciesdormancyethyleneseed germination |
| spellingShingle | Françoise eCORBINEAU Qiong eXia Christophe eBailly Hayat eEl-Maarouf-Bouteau Ethylene, a key factor in the regulation of seed dormancy Frontiers in Plant Science Abscisic Acid Gibberellins Reactive Oxygen Species dormancy ethylene seed germination |
| title | Ethylene, a key factor in the regulation of seed dormancy |
| title_full | Ethylene, a key factor in the regulation of seed dormancy |
| title_fullStr | Ethylene, a key factor in the regulation of seed dormancy |
| title_full_unstemmed | Ethylene, a key factor in the regulation of seed dormancy |
| title_short | Ethylene, a key factor in the regulation of seed dormancy |
| title_sort | ethylene a key factor in the regulation of seed dormancy |
| topic | Abscisic Acid Gibberellins Reactive Oxygen Species dormancy ethylene seed germination |
| url | http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00539/full |
| work_keys_str_mv | AT francoiseecorbineau ethyleneakeyfactorintheregulationofseeddormancy AT qiongexia ethyleneakeyfactorintheregulationofseeddormancy AT christopheebailly ethyleneakeyfactorintheregulationofseeddormancy AT hayateelmaaroufbouteau ethyleneakeyfactorintheregulationofseeddormancy |