Research progress on the underground-bud dormancy mechanisms of ornamental flowers
The underground-bud plants, namely, the geophytes, constitute an important category in bud classification of plants. These plants include a significant number of ornamental flowers. These plants adapt to cold and other unfavorable environments through the dormancy of buds (including persistent organ...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2025-02-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2024.12.161 |
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| Summary: | The underground-bud plants, namely, the geophytes, constitute an important category in bud classification of plants. These plants include a significant number of ornamental flowers. These plants adapt to cold and other unfavorable environments through the dormancy of buds (including persistent organs) that are partially or fully covered beneath the surface of the growth substrate. Therefore, the regulatory mechanism of underground-bud dormancy is a crucial aspect in the research field of ornamental flowers. In this paper, we systematically reviewed the research findings on the physiological and molecular regulatory mechanisms involved in the induction, maintenance, and release of endodormancy in underground-bud ornamental flowers over the past decade or more. They covered external environmental factors such as light and temperature, as well as internal factors such as hormone metabolism, carbohydrate conversion, reactive oxygen species clearance, secondary metabolism, epigenetics, and intercellular communication via symplast. Subsequently, a comparison of various research findings and experimental methods was conducted between underground-bud ornamental flowers and Poplar spp., which is the model plant for bud dormancy research. Finally, we analyzed the bud-dormancy research characteristics of two important categories in underground-bud ornamental flowers (perennial flowers and bulbous flowers). This review helps to comprehensively understand the latest research progress of the underground-bud dormancy research in landscape plant and ornamental horticulture field and can provide systematic theoretical support for flower cultivation and production. |
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| ISSN: | 1008-9209 2097-5155 |