Understanding of Hormonal Regulation in Rice Seed Germination
Seed germination is a critical stage during the life cycle of plants. It is well known that germination is regulated by a series of internal and external factors, especially plant hormones. In <i>Arabidopsis</i>, many germination-related factors have been identified, while in rice, the i...
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MDPI AG
2022-07-01
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| Series: | Life |
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| Online Access: | https://www.mdpi.com/2075-1729/12/7/1021 |
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| author | Diankai Gong Fei He Jingyan Liu Cheng Zhang Yanrong Wang Shujun Tian Chi Sun Xue Zhang |
| author_facet | Diankai Gong Fei He Jingyan Liu Cheng Zhang Yanrong Wang Shujun Tian Chi Sun Xue Zhang |
| author_sort | Diankai Gong |
| collection | DOAJ |
| description | Seed germination is a critical stage during the life cycle of plants. It is well known that germination is regulated by a series of internal and external factors, especially plant hormones. In <i>Arabidopsis</i>, many germination-related factors have been identified, while in rice, the important crop and monocot model species and the further molecular mechanisms and regulatory networks controlling germination still need to be elucidated. Hormonal signals, especially those of abscisic acid (ABA) and gibberellin (GA), play a dominant role in determining whether a seed germinates or not. The balance between the content and sensitivity of these two hormones is the key to the regulation of germination. In this review, we present the foundational knowledge of ABA and GA pathways obtained from germination research in <i>Arabidopsis</i>. Then, we highlight the current advances in the identification of the regulatory genes involved in ABA- or GA-mediated germination in rice. Furthermore, other plant hormones regulate seed germination, most likely by participating in the ABA or GA pathways. Finally, the results from some regulatory layers, including transcription factors, post-transcriptional regulations, and reactive oxygen species, are also discussed. This review aims to summarize our current understanding of the complex molecular networks involving the key roles of plant hormones in regulating the seed germination of rice. |
| first_indexed | 2024-03-09T03:17:02Z |
| format | Article |
| id | doaj.art-7ce425b00d37491d8597463c9d785002 |
| institution | Directory Open Access Journal |
| issn | 2075-1729 |
| language | English |
| last_indexed | 2024-03-09T03:17:02Z |
| publishDate | 2022-07-01 |
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| spelling | doaj.art-7ce425b00d37491d8597463c9d7850022023-12-03T15:18:43ZengMDPI AGLife2075-17292022-07-01127102110.3390/life12071021Understanding of Hormonal Regulation in Rice Seed GerminationDiankai Gong0Fei He1Jingyan Liu2Cheng Zhang3Yanrong Wang4Shujun Tian5Chi Sun6Xue Zhang7Liaoning Rice Research Institute, Shenyang 110115, ChinaTianjin Key Laboratory of Crop Genetics and Breeding, Tianjin Crop Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300384, ChinaTianjin Key Laboratory of Crop Genetics and Breeding, Tianjin Crop Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300384, ChinaLiaoning Rice Research Institute, Shenyang 110115, ChinaLiaoning Rice Research Institute, Shenyang 110115, ChinaLiaoning Rice Research Institute, Shenyang 110115, ChinaLiaoning Rice Research Institute, Shenyang 110115, ChinaLiaoning Rice Research Institute, Shenyang 110115, ChinaSeed germination is a critical stage during the life cycle of plants. It is well known that germination is regulated by a series of internal and external factors, especially plant hormones. In <i>Arabidopsis</i>, many germination-related factors have been identified, while in rice, the important crop and monocot model species and the further molecular mechanisms and regulatory networks controlling germination still need to be elucidated. Hormonal signals, especially those of abscisic acid (ABA) and gibberellin (GA), play a dominant role in determining whether a seed germinates or not. The balance between the content and sensitivity of these two hormones is the key to the regulation of germination. In this review, we present the foundational knowledge of ABA and GA pathways obtained from germination research in <i>Arabidopsis</i>. Then, we highlight the current advances in the identification of the regulatory genes involved in ABA- or GA-mediated germination in rice. Furthermore, other plant hormones regulate seed germination, most likely by participating in the ABA or GA pathways. Finally, the results from some regulatory layers, including transcription factors, post-transcriptional regulations, and reactive oxygen species, are also discussed. This review aims to summarize our current understanding of the complex molecular networks involving the key roles of plant hormones in regulating the seed germination of rice.https://www.mdpi.com/2075-1729/12/7/1021seed germinationriceabscisic acidgibberellinhormone signalingtranscription factors |
| spellingShingle | Diankai Gong Fei He Jingyan Liu Cheng Zhang Yanrong Wang Shujun Tian Chi Sun Xue Zhang Understanding of Hormonal Regulation in Rice Seed Germination Life seed germination rice abscisic acid gibberellin hormone signaling transcription factors |
| title | Understanding of Hormonal Regulation in Rice Seed Germination |
| title_full | Understanding of Hormonal Regulation in Rice Seed Germination |
| title_fullStr | Understanding of Hormonal Regulation in Rice Seed Germination |
| title_full_unstemmed | Understanding of Hormonal Regulation in Rice Seed Germination |
| title_short | Understanding of Hormonal Regulation in Rice Seed Germination |
| title_sort | understanding of hormonal regulation in rice seed germination |
| topic | seed germination rice abscisic acid gibberellin hormone signaling transcription factors |
| url | https://www.mdpi.com/2075-1729/12/7/1021 |
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