| Speed versus endurance tradeoff in plants: Leaves with higher photosynthetic rates show stronger seasonal declines | |
| Zhang, Yong-Jiang; Sack, Lawren; Cao, Kun-Fang | |
| 2017 | |
| Source Publication | SCIENTIFIC REPORTS
 |
| Issue | 7Pages:42085 |
| Abstract | We tested for a tradeoff across species between plant maximum photosynthetic rate and the ability to maintain photosynthesis under adverse conditions in the unfavorable season. Such a trade-off would be consistent with the observed trade-off between maximum speed and endurance in athletes and some animals that has been explained by cost-benefit theory. This trend would have importance for the general understanding of leaf design, and would simplify models of annual leaf carbon relations. We tested for such a trade-off using a database analysis across vascular plants and using an experimental approach for 29 cycad species, representing an ancient plant lineage with diversified evergreen leaves. In both tests, a higher photosynthetic rate per mass or per area in the favorable season was associated with a stronger absolute or percent decline in the unfavorable season. We resolved a possible mechanism based on biomechanics and nitrogen allocation; cycads with high leaf toughness (leaf mass per area) and higher investment in leaf construction than in physiological function (C/N ratio) tended to have lower warm season photosynthesis but less depression in the cool season. We propose that this trade-off, consistent with cost-benefit theory, represents a significant physio-phenological constraint on the diversity and seasonal dynamics of photosynthetic rate. |
| Keyword | Chilling Temperatures Woody-plants Leaf Traits Life-span Area Mass Consequences Performance Forests Offs |
| Indexed By | SCI |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/10300 |
| Collection | 植物生理生态研究组 |
| Recommended Citation GB/T 7714 | Zhang, Yong-Jiang,Sack, Lawren,Cao, Kun-Fang. Speed versus endurance tradeoff in plants: Leaves with higher photosynthetic rates show stronger seasonal declines[J]. SCIENTIFIC REPORTS,2017(7):42085. |
| APA | Zhang, Yong-Jiang,Sack, Lawren,&Cao, Kun-Fang.(2017).Speed versus endurance tradeoff in plants: Leaves with higher photosynthetic rates show stronger seasonal declines.SCIENTIFIC REPORTS(7),42085. |
| MLA | Zhang, Yong-Jiang,et al."Speed versus endurance tradeoff in plants: Leaves with higher photosynthetic rates show stronger seasonal declines".SCIENTIFIC REPORTS .7(2017):42085. |
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| Speed versus enduran（884KB） | 开放获取 | CC BY-NC-SA | View Download | |||
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