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| DOI | 10.1111/pce.14857 |
| Evidence of combined flower thermal and drought vulnerabilities portends reproductive failure under hotter-drought conditions | |
| 发表日期 | 2024 |
| ISSN | 0140-7791 |
| EISSN | 1365-3040 |
| 起始页码 | 47 |
| 结束页码 | 6 |
| 卷号 | 47期号:6 |
| 英文摘要 | Despite the abundant evidence of impairments to plant performance and survival under hotter-drought conditions, little is known about the vulnerability of reproductive organs to climate extremes. Here, by conducting a comparative analysis between flowers and leaves, we investigated how variations in key morphophysiological traits related to carbon and water economics can explain the differential vulnerabilities to heat and drought among these functionally diverse organs. Due to their lower construction costs, despite having a higher water storage capacity, flowers were more prone to turgor loss (higher turgor loss point; psi TLP) than leaves, thus evidencing a trade-off between carbon investment and drought tolerance in reproductive organs. Importantly, the higher psi TLP of flowers also resulted in narrow turgor safety margins (TSM). Moreover, compared to leaves, the cuticle of flowers had an overall higher thermal vulnerability, which also resulted in low leakage safety margins (LSM). As a result, the combination of low TSMs and LSMs may have negative impacts on reproduction success since they strongly influenced the time to turgor loss under simulated hotter-drought conditions. Overall, our results improve the knowledge of unexplored aspects of flower structure and function and highlight likely threats to successful plant reproduction in a warmer and drier world. By conducting a comparative morphophysiological analysis between flowers and leaves, we showed that, due to their lower construction costs, flowers were more vulnerable to hotter-drought events than leaves, thus evidencing possible threats to successful plant reproduction in a warmer and drier world |
| 英文关键词 | climate change; drought tolerance; flower hydraulics; plant reproduction; thermal vulnerability |
| 语种 | 英语 |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| WOS记录号 | WOS:001164145400001 |
| 来源期刊 | PLANT CELL AND ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/301522 |
| 作者单位 | Instituto Federal Goiano; Universidade de Brasilia; State University System of Florida; University of Florida; INRAE; Universite Clermont Auvergne (UCA) |
| 推荐引用方式 GB/T 7714 | . Evidence of combined flower thermal and drought vulnerabilities portends reproductive failure under hotter-drought conditions[J],2024,47(6). |
| APA | (2024).Evidence of combined flower thermal and drought vulnerabilities portends reproductive failure under hotter-drought conditions.PLANT CELL AND ENVIRONMENT,47(6). |
| MLA | "Evidence of combined flower thermal and drought vulnerabilities portends reproductive failure under hotter-drought conditions".PLANT CELL AND ENVIRONMENT 47.6(2024). |
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