Organisms living at elevation are exposed to a constant state of hypoxia compared to those at low altitude. A recent study1 has shown that flowering plants acclimatize to high altitude through natural variation in molecular oxygen (O2) sensing, with high-altitude populations exhibiting increased O2 sensitivity to balance physiological and metabolic outputs. This finding demonstrates convergent mechanisms for altitude adaptation across eukaryotic kingdoms despite differences in the hypoxia-signalling pathways of plants and animals.

中文翻译：

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高氧

与低海拔的生物相比，生活在高海拔的生物会处于持续的缺氧状态。最近的一项研究表明，开花植物通过分子氧 (O2) 感应的自然变化来适应高海拔，高海拔种群表现出更高的 O2 敏感性以平衡生理和代谢输出。这一发现表明，尽管植物和动物的缺氧信号通路存在差异，但真核生物界的海拔适应存在收敛机制。